CEILAiR. Engineering Manual. Precision Air Conditioning 1 to 10 Tons (60 Hz Data) Ceiling Mounted Full line of DX & CW Systems

CEILAiR Engineering Manual Precision Air Conditioning 1 to 10 Tons (60 Hz Data) Ceiling Mounted Full line of DX & CW Systems

Stulz SATS is dedicated to providing innovative solutions for critical temperature and humidity control needs. SATS designs and manufactures specialized environmental control equipment for commercial, industrial and custom military applications. SATS serves a diverse marketplace - including telecommunications, information technology, medical, financial, educational, industrial process and government contracts - utilizing world-class island manufacturing processes in a modern, 150,000 ft 2 Air Technology Systems, I facility. The addition of SATS to the STULZ family of companies solidifies STULZ as a global leader in the precision air conditioning marketplace. SATS combines a global network of sales and service companies with an extensive factory engineering staff and highly flexible manufacturing resources dedicated to providing world-class quality, innovation and customer service. ISO-9001:2001Quality Registered Stulz-ATS is committed to satisfying customer expectations by meeting and exceeding requirements. Our Quality Policy ensures that every Employee is committed to Customer Satisfaction, Teamwork and utilizing Continuous Process Improvement methods in order to deliver an exceptional product. We will continually measure our performance to improve the effectiveness of our quality management system Precision A/C Applications Stulz-ATS is dedicated to the manufacturing of supplemental and precision air conditioning products. With an extensive installation base, SATS has earned a solid reputation as a quality supplier and leader in its field. CeilAiR ceiling mounted air conditioning units provide temperature and/or humidity control for those hot spot areas in the building which exceed the central system capacity. They are an economical solution to such demands which may, in fact, be temporary until the next offices are carved out of an existing plant area, another laboratory added to a school or new medical equipment installed at a hospital. No floor space is required by the CeilAiR ceiling mounted units. The units are designed with a wide range of options to handle both comfort and precision cooling applications. Typical applications include: COMFORT Conference Rooms General Office Spaces Modular Offices CRITICAL / PRECISION Telecommunications Rooms Telephone Switch-Gear Rooms Computer / LAN Rooms Copier / Fax Rooms ATM Bank Centers Elevator Equipment Rooms CAT SCAN / MRI Facilities Hospital Operating & Isolation Rooms Clean Rooms Laboratories PERFECT FOR TENANT RENOVATIONS! 1-1

Table of Contents Table of Contents SECTION - 1 Introduction to Stulz-ATS... 1-1 Table of Contents... 1-2 SECTION - 5 ELECTRICAL DATA: (FLA / MCA / MFS) Electrical Data Index... 5-1 SECTION - 2 CeilAiR SYSTEMS: Outstanding Advantages... 2-1 User Oriented Features & Options... 2-2 Available Configurations... 2-3/4 MODEL NOMENCLATURE: Nomenclature Chart... 2-5 Model Nomenclature Specifications... 2-6 SECTION - 3 GUIDE SPECIFICATIONS: Standard Features Index... 3-1 Standard Guide Specifications... 3-2/4 DX - Compressorized Systems: Air Cooled, Self-Contained Systems... 5-2 Air Cooled, Split Systems... 5-2/4 Water Cooled Systems... 5-2/4 Glycol Cooled Systems... 5-2/4 DX - Air Handling & Remote Condensing Units: DX - Air Handling Units... 5-5/6 Free-Cooling & Alternate Water Source: DX with Free-Cooling... 5-7/8 DX with Alternate Water Source... 5-7/8 Chilled Water Air Handling Systems: Optional Features Index... 3-5 Optional Features Guide Specifications... 3-6/14 Chilled Water Systems... 5-9 SECTION - 4 PERFORMANCE / CAPACITY SPECIFICATIONS: Performance Data Index... 4-1 SECTION - 6 DIMENSIONAL / INSTALLATION DRAWINGS: Dimensional Drawing "Quick Find" Index... 6-1 DX - Air Cooled Systems... 4-2/6 DX - Water Cooled Systems... 4-7/8 DX - Glycol Cooled Systems... 4-9/10 Chilled Water Systems... 4-11/16 Physical Data - Unit Weights (lbs)... 6-2 Connection Sizes - DX Refrigerant... 6-3 Air Cooled Systems... 6-4/9 Water / Glycol Cooled Systems... 6-10/13 Chilled Water Systems... 6-14/15 Free-Cooling & Alternate Water Source Systems... 4-17/28 1-2

CeilAiR Systems CeilAiR ceiling A/C's are designed as the ultimate space saver. They easily mount in a standard 2' x 4' grid of a dropped ceiling plenum and are available with high static blowers (up to 2.0" e.s.p. available) for connection to ceiling plenum ducts. CeilAiR units are especially useful where there is no floor or wall space available for cooling units or where aesthetics demand out-of-sight installation. { CeilAiR Systems Offer Outstanding Advantages Flexibility A wide variety of types are available to meet your unique requirements. DX - Air Cooled DX - Water Cooled DX - Glycol Cooled (w/ Remote Drycoolers & Pump Packages Technology Systems, I DX - Air Handling Units Chilled Water Air Handling Units Microprocessor Controls Precision temperature and/or humidity control with unrivaled, user-friendly controls, offer a wide range of functions and alarms. Versatility Spot Cooling & Ducted systems Self-Contained & Split systems Space Saving Design Compact, in-the-ceiling design saves valuable floor space. Wide Size Range 1 to 10 tons capacity in eleven incremental sizes meets any supplemental cooling requirement. Non-Proprietary Parts All CeilAiR systems incorporate non-proprietary components where possible. Most major HVAC, refrigeration and electrical distributors stock an exact model cross reference or an alternate to most factory provided components. A-Tech-1.1/.2 C-Tech-10 A-Tech-20 Complete Temperature & Humidity Control Steam Canister Humidification (Optional) Dehumidification Mode (Optional) with - Electric Reheat/Heat - Hot Gas Reheat (Energy $aver) - Hot Water & Steam Reheat/Heat Capacity Modulation Options Single & Dual Compressor Systems Hot Gas Bypass Systems Multistage Reheat/Heat Code Conformance NRTL LISTED C Listing E112043 R Complies With UL 1995 CSA C22.2 No. 236 Heating & Cooling Equipment - NYC MEA Approved (MEA-163-88-E) - Chicago Code Approved - MET-C recognized by Standards Council of Canada 2-1

User Oriented Features & Options Scroll Compressors CeilAiR DX air conditioners incorporate Scroll Compressor Technology (unless specified otherwise). Scroll Compressors provide higher efficiency, higher reliability and lower sound power than other compressor technologies. Variety of Air Patterns Spot Cooler Year Round Operation Option offerings available with Ceil- AiR air conditioners allow for year-round, 24/7 continuous on-line system operation in any environment in the world: Ducted EVAPORATOR AIR IN EVAPORATOR AIR OUT Low Ambient Control (DX - Air Cooled) 0 F Fan Cycling / Fan Speed -20 F Variable Fan Speed -30 F Flooded Head Pressure EVAPORATOR AIR IN EVAPORATOR AIR IN Quiet Operation Low sound power Scroll compressors coupled with low RPM blowers, acoustically lined cabinets and low velocity grilles provide the optimum in quiet operation. EVAPORATOR AIR OUT 90 / Right-Angle EVAPORATOR AIR OUT Straight-Thru Fast Delivery Stock units complete and ready for shipment "Rapid-Fire", 5 day Ship Program Warranty - 2 Year Parts Standard - Optional 5 Year Compressor Other Available Options - Condensate Pumps - Electrical Service Switches - Firestats - Smoke Detectors - Water Leak Detectors - Special High Efficiency Filtration (2" & 4" Filters up-to 60% Dust Spot) - High Pressure DX - Water/Glycol Cooled Condenser Regulating Valves - Free-Cooling & Alternate Water Source Units - Many more options available (see page 3-5)! Light weight ALL ALUMINUM cabinet and chassis prevents rust & corrosion CeilAiR Ceiling AC Systems (Model OHS-( )-AS Shown) Selected Standard Features: Acoustical / Thermal Insulation Aluminum Fin / Copper Tube Coils Thermal Expansion Valve Refrigerant Sight Glass Filter / Drier Strainer Liquid Refrigerant Reclaim Valves Insulated SS or Polymer Drain Pans Condensate Overflow Safety Switch High / Low Pressure Switches 2-2

Space Saving Configuration Choices AIR COOLED SYSTEMS SELF-CONTAINED AIR COOLED - with INTEGRAL Air Cooled Condenser OHS-012/040-AS (Self-Contained, "Ductless" Spot Cooler) OHS-012/040-AS (Self-Contained, Ducted Evaporator) SPLIT AIR COOLED - Please refer to the SATS Heat Rejection Engineering Manual for specification and performance data on SATS Remote Condensers & Condensing Units { with REMOTE OUTDOOR or INDOOR Air Cooled Condenser (compressor located with Evaporator Section) SATS Remote Outdoor Propeller Condenser { SATS Remote Outdoor Propeller Condenser SATS Remote Indoor Centrifugal Condenser OHS-012/040-AR (Split Evaporator, "Ductless" Spot Cooler) SATS Remote Indoor Centrifugal Condenser OHS-012/040-HAR & OHS-048/060-AR (Single Compressor - Split Evaporator) (Ducted Only) SATS Remote Outdoor Propeller Condenser Air Technology Systems, I { { SATS Remote Outdoor Propeller Condenser SATS Remote Indoor Centrifugal Condenser OHS-012/032-AR (Split Evaporator, Ducted Evaporator) OHS-040/120-(D)AR (Dual Compressors - Split Evaporator) (Ducted Only) SATS Remote Indoor Centrifugal Condenser SPLIT AIR COOLED - AIR HANDLING UNIT w/ INDOOR or OUTDOOR REMOTE CONDENSING UNIT (compressor located with Condensing Section) SATS Outdoor Propeller Remote Condensing Unit SATS Outdoor Propeller Remote Condensing Unit { { SATS Indoor Centrifugal Remote Condensing Unit OHS-012/040-AHU (Split, DX - Air Handling Unit) ("Ductless" Spot Cooler) SATS Indoor Centrifugal Remote Condensing Unit OHS-048/060-AHU (Split, DX - Air Handling Unit) (Ducted Only) SATS Outdoor Propeller Remote Condensing Unit SATS Outdoor Propeller Remote Condensing Unit OHS-048/120-DAHU (Dual Circuit, Split, DX - Air Handling Unit) (Ducted Only) { { SATS Indoor Centrifugal Remote Condensing Unit OHS-012/040-AHU & HAHU (Split, DX - Air Handling Unit) (Ducted Evaporator) SATS Indoor Centrifugal Remote Condensing Unit 2-3

More Space Saving Configuration Choices WATER COOLED SYSTEMS SELF-CONTAINED WATER COOLED SYSTEMS Remote Water Source (supplied by others) Remote Water Source (supplied by others) OHS-012/040-W (Self-Contained, "Ductless" Spot Cooler) OHS-012/032-W (Self-Contained, Ducted Evaporator) Remote Water Source (supplied by others) Remote Water Source (supplied by others) OHS-012/040-HW & OHS-048/060-W (Single Compressor, Self-Contained, Ducted Only) OHS-048/120-DW (Dual Compressors, Self-Contained, Ducted Only) SELF-CONTAINED GLYCOL COOLED SYSTEMS GLYCOL COOLED SYSTEMS Please refer to the SATS Glycol Systems Engineering Manual for specification and performance data on SATS Glycol Pump Packages and Drycoolers OHS-012/040-G with SATS DRYCOOLER & PUMP PACKAGE (Self-Contained, "Ductless" Spot Cooler with Outdoor Propeller Drycooler & Pump Package) OHS-012/040-HG & OHS-048/060-G with SATS DRYCOOLER & PUMP PACKAGE (Single Compressor, Self-Contained, Ducted Only with Outdoor Propeller Drycooler & Pump Package) OHS-012/040-G with SATS DRYCOOLER & PUMP PACKAGE (Self-Contained, Ducted Evaporator with Outdoor Propeller Drycooler & Pump Package) OHS-048/120-DG with SATS DRYCOOLER & PUMP PACKAGE (Dual Compressors, Self-Contained, Ducted Only with Outdoor Propeller Drycooler & Pump Package) Remote Liquid Chiller (supplied by others) CHILLED WATER SYSTEMS Remote Liquid Chiller (supplied by others) Remote Liquid Chiller (supplied by others) OHS-012/040-C (Self-Contained Air Handler) ("Ductless" Spot Cooler Evaporator) OHS-012/040-C (Self-Contained Air Handler) (Ducted Evaporator) OHS-048/120-C (Self-Contained Air Handler) (Ducted Only) 2-4

Nomenclature - CeilAiR Systems Model Nomenclature - "OHS" Systems CeilAiR - Ceiling Mounted A/C's OHS = OverHead System COS = CyberONE System MCS = Modular Cyber System VFS = Vertical Floor System FCS = Floor Console System SCS = STULZ Condensing Section* GPS = Glycol Pump System* Nominal Capacity in 1,000's of BTU/H OHS-040-G-FC AHU = Air Handling Unit AR = Remote (Split) Air Cooled AS = Self-Contained Air Cooled C = Chilled Water System CAA = Indoor Centrifugal Condenser* D( ) = Dual (Two) Circuit System G = Glycol Cooled H( ) = Horizontal Discharge, "H- Series" Configuration (e.g.: HAHU, HAR, HW, HG, & HC) ( )AA = Outdoor Prop Fan Condenser for 0 F* Air Technology ( )SA Systems, = Outdoor Prop Fan Condenser for -20 F* I ( )AA = Outdoor Prop Fan Condenser for -30 F* AWS FC LP OA SF SP = "Alternate Water Source" = "Free-Cooling" = "Low Profile Configuration" = "Outside Air"* = "Same-Face" Air Pattern = "Special Configuration" EC = Outdoor Prop Fan Condenser for -20 F* w/ EC Fans RCU-I = Indoor Centrifugal Remote Condensing Unit* RCU-O = Outdoor Remote Condensing Unit* W = Water Cooled * SATS Condensers & Condensing Units can be found in our "Heat Rejection" engineering manual. * SATS OHS Oustide Air Units can be found in our "CeilAiR Outide Air" engineering manual. * SATS Pump Packages and Drycoolers can be found in our "Glycol Systems" engineering manual. 2-5

Model Nomenclature Specifications "CeilAiR" Model Nomenclature Guide Specifications AIR COOLED SELF-CONTAINED Integral Self-Contained (Models OHS-012/040-AS) The system shall be a self-contained, ceiling mounted supplemental air conditioner with factory mounted integral air cooled condenser with centrifugal blower. The condenser shall be sized to provide the total heat of rejection of the system at a 95 F DB ambient temperature. The system shall require only single point supply power connection and the system shall ship from the SATS factory with a full operating refrigerant charge. DX - EVAPORATOR SECTIONS Air Cooled Remote Evaporator (Models OHS-( )-()AR) The system shall be a remote (split) air cooled, ceiling mounted supplemental air conditioner evaporator. The evaporator section shall house, as a minimum, the evaporator coil, expansion valve, compressor, evaporator blower/motor and associated electrical and refrigeration components. The OHS-( )-()AR evaporator section shall be located at some distance from its corresponding CeilAiR model HES-( )-()CAA indoor or WCS-( ) outdoor air cooled condenser. The evaporator system shall require only single point main power supply connection and the ystem shall ship from the SATS factory with a dry nitrogen holding charge ready for field refrigerant (R-22) charging. (Note: SATS Condensers & Condensing Units can be found in our "Heat Rejection" engineering manual.) DX - WATER COOLED SYSTEMS Integral Self-Contained (Models OHS-( )-W / DW) The system shall be a self-contained, ceiling mounted supplemental air conditioner to include integral water cooled, coaxial condenser with factory installed head pressure water regulating control valve(s). Condenser (source) water shall be provided by a cooling tower or some other remote water source. The system shall require only single point supply power connection and shall ship from the SATS factory with a full operating refrigerant charge. Water Regulating Valves: Head pressure shall be automatically controlled by a factory installed 2-way water regulating valve rated for 150 psig w.w.p. (Note: 3-way and high pressure 300 to 400 psig rated valves are available as options, page 3-9.) DX - GLYCOL COOLED SYSTEMS Integral Self-Contained (Models OHS-( )-G / DG) The system shall be a self-contained, ceiling mounted supplemental air conditioner to include integral glycol cooled, coaxial condenser with factory installed head pressure glycol regulating control valve(s). Condenser (source) glycol solution shall be provided via a CeilAiR model GPS-( )-( ) / HES-( )-LGA remote glycol pump package and drycooler system. The system shall require only single point supply power connection and shall ship from the SATS factory with a full operating refrigerant charge. Glycol Regulating Valves: Head pressure shall be automatically controlled by a factory installed 2-way glycol regulating valve rated for 150 psig w.w.p. (Note: 3-way and high pressure 300 to 450 psig rated valves are available as options, page 3-9.) CHILLED WATER AIR HANDLERS CHILLED WATER SYSTEM (Models OHS-( )-C) The system shall be a ceiling mounted chilled water supplemental air conditioner to include chilled water cooling coil, evaporator blower and motor and chilled water control valve. Chilled water shall be provided by a remote liquid chiller system. Chilled Water Control Valve: Cooling capacity shall be controlled with a slowly opening and slowly closing 2-way motorized control valve rated for 300 psig w.w.p. (Note: 3-way 300 psig motorized valves and 2 or 3-way modulating valves are available as options.) Nomenclature - CeilAiR Systems 2-6

Guide Spec's - Standard Features "Quick-Reference" Table Selected Standard Features - "OHS" Series "OHS" Model 012/040-( ) 012/040-H( ) 048/060-( ) 048/120-D( ) SELECTED STANDARD FEATURES: TEMPERATURE CONTROL Cooling Only Std Std Std Std Heating / Reheating Control Opt Opt Opt Opt HUMIDITY CONTROL Electrode Canister Steam Humidifier Opt Opt Opt Opt Dehumidification Mode with Reheat Opt Opt Opt Opt CONTROLS A-Tech-1.1 single stage controls Std Std Std N/A A-Tech-1.2 two stage controls Opt Opt Opt Std C-Tech-10, A-Tech-20, C6000 T/H Microprocessor Controls Opt Opt Opt Opt CABINET All Aluminum Construction Std Std Std Std Insulated SS or Polymer Condensate Drain Pan Std Std Std Std 1/2", 2 lb Density Thermal & Sound Insulation Std Std Std Std Rubber Hanging Vibration Isolators Std Std Std Std FILTERS / GRILLES Spot Coolers with bottom supply / return filter grille Std N/A N/A N/A Ducted Units with flanged ducted connections Opt Std Std Std DX-REFRIGERATION CIRCUIT R22 Refrigerant Std Std Std Std R407C Refrigerant Opt Opt Opt Opt Scroll Type Compressor(s), (unless otherwise noted) Std Std Std Std High Efficiency, Aluminum Fin / Copper Tube Coils Std Std Std Std Thermal Expansion Valve Std Std Std Std Refrigerant Sight Glass & Filter/Drier Strainer Std Std Std Std Refrigerant Service Valves Std Std Std Std Air Technology Systems, I BLOWERS / MOTORS Direct-Drive Evaporator Motors Std N/A N/A N/A Belt-Drive Evaporator Motors N/A Std Std Std ELECTRICAL Power Supply ------------------------- See Electrical Tables Section 5 ------------------------- Multi-Voltage Control Transformer (24V Class II) Std Std Std Std Individual Motor Starter(s) / Contactor(s) Std Std Std Std SAFETY FEATURES Condensate Pan Overflow Safety Switch(es) Std Std Std Std High / Low Refrigerant Pressure Switches (DX units) Std Std Std Std Motor Overcurrent and Overload Protection Per UL 1995 Std Std Std Std SPECIFIC MODEL STANDARD FEATURES: AIR COOLED Low Ambient Head Pressure Control ------------------- Three types available 0 F, -20 F or -30 F ------------------- Integral (model OHS-()-AS) or Remote Air Cooled Condenser Std Std Std Std WATER / GLYCOL COOLED 2-way, 150 psig Water/Glycol Regulating Valves Std Std Std Std High Pressure & 3-way Valves Opt Opt Opt Opt Coaxial, Tube-in-Tube Heat Exchanger Std Std Std Std ALL SPLIT DX SYSTEMS Liquid Line Solenoid Valve to Prevent Liquid Slugging Std Std Std Std DUAL CIRCUIT DX SYSTEMS Two(2) Independent Refrigerant Circuits N/A N/A N/A Std Two(2) Equal Horsepower Scroll Compressors (1 per circuit) N/A N/A N/A Std A-Tech-1.2 two stage controls N/A N/A N/A Std CHILLED WATER SYSTEMS 2-way, 300 psig Motorized Valve Std Std Std Std Modulating, High Pressure & 3-way Valves Opt Opt Opt Opt CODE CONFORMANCE NRTL Conformance Compliance to UL 1995 Standard Std Std Std Std NYC MEA-163-88-E / Chicago Code Approval Std Std Std Std 3-1

Guide Specifications - Standard Equipment QUALITY ASSURANCE (ISO-9001:2001 Registered) SATS operates in an ISO-9001:2001 registered quality control environment. Each SATS employee is committed to satisfying his or her customer expectations with the highest level of consistent, measurable and continuous quality improvement. GENERAL GUIDE SPECIFICATION General Description The system shall be a ceiling mounted supplemental air conditioner designed and built to the highest of industry standards. The system shall be complete and factory run-tested before shipment. The system shall be listed and labeled in compliance with UL 1995 (# SATS-1995) by an approved Nationally Recognized Testing Laboratory (NRTL). The system shall be MEA NYC (MEA-163-88-E) and Chicago Code approved. The system shall be manufactured by ISO-9001 Quality Registered Stulz Air Technology Systems, Inc. in Frederick, Maryland, USA. Component Access The air conditioner shall be fully accessible in-place through easily removable side access panels. Cabinet Construction Electrical System The system shall incorporate overcurrent and overload protection in accordance with UL 1995 requirements. Each blower motor, compressor, electric heater stage and humidifier (if applicable) shall be provided with a factory mounted and wired starter / contactor. The control circuit shall be a 24 VAC Class 2 low voltage circuit including a circuit breaker for protection. Low voltage, high voltage and grounding wires shall be color coded and shall be individually numbered at each end for ease of service tracing. All wiring shall be in accordance with the National Electric Code (NEC). Overflow Safety Float Switch A condensate pan water level switch shall be incorporated to shut the system down if a condensate overflow condition is sensed. Remote Stop / Start Included in the system's electrical control circuit shall be a 2-pin terminal connection for remote stop / start of the CeilAiR air conditioner by a remote source. pered aluminum fins with a raisedlanced fin design for maximum heat transfer. Coil end plates shall be hot dipped galvanized. The evaporator coil shall be mounted in an insulated stainless steel condensate pan. DX- Refrigeration System Thermal Expansion Valves All refrigeration piping shall be refrigerant grade tubing. Each refrigerant circuit shall include, as a minimum, refrigerant drier/strainer, sight glass with moisture detector, thermal expansion valve with rapid bleed port feature and external equalizer, evaporator coil, compressor, high pressure switch with manual reset and a low pressure switch with automatic reset. Split / Remote systems shall have a liquid line solenoid for refrigerant isolation to prevent liquid slugging. All high pressure joints shall be brazed, and the entire system shall be pressure tested at the factory with dry nitrogen, evacuated to at least 50 microns and fully charged with refrigerant. Note: All split / remote DX systems ship with a dry nitrogen holding charge. All self-contained DX systems ship with a full refrigerant (R-22) operating charge. Scroll Compressors Filter Drier/ Strainers Sight Glasses Guide Spec's - Standard Equipment The cabinet and access panels shall be fabricated from aluminum for corrosion protection and to minimize the system s weight. The panels shall be lined with 2 lb/ft 2 high density sound and thermal insulation and sealed with self-extinguishing gasketing conforming to NFPA 90A and 90B. Coils Evaporator systems shall be configured for a draw-thru air pattern to provide uniform air distribution over the evaporator coil face. The coils shall be seamless drawn copper tubes, mechanically bonded to tem- Each compressor shall be a high efficiency, high reliability and low sound Scroll Compressor, unless specifically noted otherwise. 3-2

Guide Spec's - Standard Equipment Guide Specifications - Standard Equipment The compressor shall be complete with charging and service schraeder ports, internal vibration isolation, internal thermal overloads, internal pressure relief valve, internal discharge gas vibration eliminator and external vibration mounting isolation. Chilled Water Systems (Models OHS-()-C) Cooling Coil: The chilled water coil shall be constructed of seamless drawn copper tubes, mechanically bonded to tempered aluminum fins for maximum heat transfer. Coil end plates shall be hot dipped galvanized. The cooling coil shall be mounted in an insulated stainless steel condensate drain pan. Control Valve: Air Technology Systems, I Cooling capacity shall be controlled by a factory installed slowly opening and slowly closing 2-way motorized control valve rated for a maximum 300 psig w.w.p. (Note: Please refer to page 3-10 for additional chilled water valve options.) Blowers / Motors Direct Drive Systems The blower(s) shall be direct driven with double width, double inlet housing and forward curved blades. The blower(s) shall be dynamically and statically balanced to minimize vibration and operate in the Class I range. The blower(s) shall be corrosion protected with a painted housing and impeller wheel. The three speed (208V) evaporator motor shall be factory wired for the correct speed to produce the specified air quantity. The motor(s) shall have internal overload protection. (277V & 460V direct-drive motors shall be 2-speed.) Belt Driven Systems The blower(s) shall be belt driven with double width, double inlet housing and forward curved blades and permanently lubricated ball bearings sized for an average 100,000 hours of service life. The blowers shall be dynamically and statically balanced to minimize vibration and operate in the Class I range. The blower(s) shall have an adjustable base for belt tensioning and a locking system to prevent the motors from moving. The motors drive sheaves shall have an adjustable pitch to change the speed of the blowers. The motor(s) shall be 1725 RPM and shall have overload protection and a minimum NEMA service factor of 1.15. Temp & Humid Control The standard CeilAiR system is configured as a "cooling only" system. Heating, reheating and/or humidity control can be optionally added to provide total space temperature and humidity control. (Please see pages 3-5 thru 3-7 for more details.) A-Tech-1.1 Standard single stage DX and nonproportional CW Heat/Cool programmable digital thermostat. A-Tech-1.2 Standard dual stage DX Heat/ Cool programmable digital thermostat. C-Tech-10 Optional single or dual stage DX or non-proportional CW Temperature and Humidity Microprocessor Controller with alarms. A-Tech-20 & C6000 Optional all purpose Advanced Temperature and Humidity Microprocessor Controllers with alarms and optional remote BMS communications connections. (NOTE: Please refer to pages 3-6 & 3-7 for additional specification details on all CeilAiR ceiling AC control options.) 3-3

Guide Specifications - Standard Equipment Evaporator Air Patterns & Filtration "Ductless" Spot Cooler (Models OHS-012 thru 040-( ) only.) The air conditioner shall be designed for installation in a standard 2' x 4' ceiling grid for ductless supply and return evaporator air through a factory provided bottom supply & return filter grille. The air conditioning unit shall have a drop out, 1" deep, class 2 (per U.L. Standard 900) filter easily accessed through the hinged return grille. The filter shall have a rating of at least 80% average arrestance as measured by ASHRAE Standard 52-76 test method. Ducted Evaporator (Available on all model sizes) The air conditioner shall be provided with evaporator supply and return air duct connections. EVAPORATOR AIR OUT EVAPORATOR AIR IN EVAPORATOR AIR OUT EVAPORATOR AIR IN The unit shall have slide out, 1" deep Class 2 (per U.L. Standard 900) filter(s) easily accessed through a side access panel. The filter shall have a rating of at least 80% average arrestance as measured by ASHRAE Standard 52-76 test method. (Note: Please refer to Section 6 for standard CeilAiR cabinet configurations. Consult your local SATS sales representative for special applications.) DX - Heat Rejection AIR COOLED Please refer to the SATS Heat Rejection Engineering Manual for specification details of air cooled condensers and condensing units. WATER / GLYCOL COOLED Water/Glycol Cooled Condensers Coaxial Tube-In-Tube: (Models OHS-012/120-()W/G) Each evaporator refrigerant circuit shall be provided with a factory installed single pass, counterflow configured, tube-in-tube coaxial condenser; designed and tested for a 450 psig. w.w.p. 2-Way, 150 psig Regulating Valve (Standard on all OHS-( )-()W/G) Each refrigerant circuit's head pressure shall be controlled by a factory installed 2-way water / glycol regulating valve rated for 150 psig. w.w.p. (Note: 3-way and high pressure water/ glycol regulating valves are optionally available, page 3-9.) Guide Spec's - Standard Equipment 3-4

Optional Features - Index Optional Features - Guide Specifications OPTION Optional Features Index... page Microprocessor Controls A-Tech-1.1 (Digital Thermostat, 1-stage)... 3-6 A-Tech-1.2 (Digital Thermostat, 2-stage)... 3-6 C-Tech-10 (Micro Temp/Humid w/ Alarms)... 3-6 A-Tech-20 Advanced Microprocessor... 3-7 A-Tech-20 Remote Communications... 3-7 C6000 Advanced Microprocessor... 3-8 C6000 Remote Communications... 3-9 Humidity Control Options Steam Humidifier... 3-10 Dehumidification Cycle - Electric Reheat / Heat... 3-10 - Hot Gas Reheat... 3-10 - Hot Water Reheat / Heat... 3-10 - Steam Reheat / Heat... 3-10 - SCR Fired (0-10 Vdc) Electric Reheat... 3-10 Free Cooling - Valve Combinations 150 psig Rated System: (standard)... 3-11 - 3-way, 150 psig, DX Condenser Valve(s) - 3-way, 300/400 psig, FC Coil Valve 300 psig Rated System: (optional)... 3-11 - 3-way, 350 psig, DX Condenser Valve(s) - 3-way, 300/400 psig, FC Coil Valve 400 psig Rated System: (optional)... 3-11 - 3-way, 450 psig, DX Condenser Valves - 3-way, 400 psig, FC Coil Valve Capacity Modulation Options Snap-Acting, Hot Gas Bypass... 3-11 Full-Floating, Hot Gas Bypass... 3-12 Dual Compressor / 2-Stage Systems... 3-12 Modulating Chilled Water Control Valves... 3-12 Air Technology Systems, I ACCESSORIES High Static Pressure Blowers High Static Belt-Drive Blower Upgrade... 3-10/11 (Up to 2.0" ext. static pressure) High Efficiency Filtration (IAQ) IAQ High Efficiency Filters... 3-11 Head Pressure Control Options Air Cooled - Low Ambient Control 0 F Ambient... 3-11 -20 F Ambient... 3-11 -30 F Ambient... 3-11 3-Phase Power Supply... 3-12 277/1/60 Power Supply... 3-12 Condensate Pump... 3-12/13 Smoke Detector... 3-13 Firestat... 3-13 Remote Water / Leak Detector... 3-13 Acoustical Compressor Sound Jackets... 3-13 Low Entering Condenser Water... 3-14 Main Power - Non-Fused Service Switch... 3-14 Refrigerant Lines with Quick Disconnect Couplings... 3-14 Water/Glycol Cooled - Regulating Valves 2-way, 150 psig (Standard)... 3-11 2-way, 350 psig... 3-11 2-way, 450 psig... 3-11 3-way, 150 psig... 3-11 3-way, 350 psig... 3-11 3-way, 450 psig... 3-11 Energy $aving Cooling Options Free-Cooling Cycle... 3-14 Alternate Water Source Cycle... 3-14 3-5

Optional Features - Microprocessor Control Options CeilAiR Control Options 5-Levels of microprocessor control offerings allow you the flexibility of selecting the best control scheme for their unique requirements: A-Tech-1.1 Standard single stage DX and non-proportional CW Heat/Cool programmable digital thermostat. A-Tech-1.2 Standard dual stage DX Heat/ Cool programmable digital thermostat. C-Tech-10 Optional single or dual stage DX or non-proportional CW Temperature and Humidity Microprocessor Controller with alarms. A-Tech-20 Optional all purpose Advanced Temperature and Humidity Microprocessor Controller with alarms and optional remote BMS communications connections. C6000 Optional all purpose Advanced Temperature and Humidity Microprocessor Controller with alarms and optional remote BMS communications connections. A-Tech-1.1 The CeilAiR ceiling air conditioner shall be provided with SATS' "slimline", ultra-thin profile, 1- stage cool / 1-stage heat, remote wall mounted programmable digital microprocessor based controller. Note: The A-Tech-1.1 thermostat is standard on all single stage DX and non-proportional chilled water systems. A-Tech-1.2 The CeilAiR ceiling air conditioner shall be provided with SATS' "slimline", ultra-thin profile, 2-stage cool / 2-stage heat, remote wall mounted programmable digital microprocessor based controller. Note: The A-Tech-1.2 thermostat is standard on all dual stage DX systems. Common A-Tech-1.1/1.2 Features: Auto changeover for Heat/Cool Modes Selectable F or degrees C display Fan selector for continuous fan operation Built-in short cycle protection Internal switch to lock-out the keypad to prevent unauthorized tampering Electronic calibration 45 second fan purge after heating and cooling call Day/Night button for user selectable alternate setpoint manual setback 12 hour or 24 hour clock Daylight Savings Time button to adjust the clock +/- 1 hour Copy button to allow one program to be copied to subsequent days Override feature Does not require a battery Solid state electronic output C-Tech-10 Temperature & Humidity Microprocessor Controller The CeilAiR ceiling mounted air conditioner shall be provided with SATS' C-Tech-10 Microprocessor based Temperature and Humidity controller with Alarms. The controller shall incorporate a userfriendly operating environment with backlit graphic LCD display. Standard Features: Display / Keypad: Backlit LCD graphic display with characters to show the operating mode, time, set points and actual readings Internal Temperature and Humidity Sensor 3 Set Point Programmable (Normal, Temporary, Night) per day, 7 days per week Summary Alarm Contact Visual/Audible Alarm Indication: High Temp (HI T) Dirty Filter (E FL) Low Temp (LO T) Sensor Failure High Humid (HI H) Comm. Failure Low Humid (LO H) Summary (E ID) Summary Alarm (E ID): condensate overflow/water detection; smoke detection; firestat (if applicable) Maintenace Alarms: based on user defined component run-times schedules (compressor 1 (HR 1) & 2 (HR 2); evap blower (HR F). Optional Features - Microprocessor Control Options 3-6

Optional Features - Microprocessor Control Options 3-7 Optional Features - Microprocessor Control Options System Operation: Fan Continuous or on Demand Auto-Restart Upon Power Loss Remote Stop/Start Connection Short Cycle Protection Cold Start Time Delay Pump-Down Cycle Optional Features: Remote Temp/Humid Sensor: Optional remote wall mounted temperature and humidity sensor Remote Sensor Cable Options: 75 ft. cable length (standard option) 150 ft. cable length A-Tech-20 Air Technology Systems, I CyberLAN w/ A-Tech 20 ALARM CONDITIONS: Remote Communications Advanced Microprocessor Temperature & Humidity Controller with Alarms The CeilAiR ceiling mounted air conditioner shall be provided with SATS' A-Tech-20 Advanced Microprocessor based Temperature and Humidity controller with Alarms. The controller shall incorporate a "user-friendly" operating environment, to allow easy system setup and operation. Standard Features: 4 x 20 character liquid-crystal alpha-numerical display Field Configurable 30 Ft. Remote Display Cable Unit Mounted T/H Sensor Current Unit Status Component Run-Time History Visual & Audible Alarm Indication Summary Alarm Contacts Alarm History Remote Stop / Start Connection Selectable Automatic or Manual Restart Upon Power Loss Sequential Load Activation Upon Power Loss Restart Alarm Delay for Space T/H Recovery Upon Power Loss Restart Multi-Level Password Security Protection Short Cycle Protection Cold Start Time Delay Pump-Down Cycle Service Mode Time-Clock with Override Night-Setback with Override Display/Sensor Options: Remote Display Cable Options: 30 ft. cable length (standard) 75 ft. cable length 150 ft. cable length Remote Sensor Cable Options: 75 ft. cable length (standard option) 150 ft. cable length The A-Tech-20 alerts to the following alarm conditions (if applicable): High Temperature Low Temperature High Humidity Low Humidity High Head Press Low Suction Press Loss of Air Flow Loss of Power Dirty Filter Smoke Detection Firestat Leak Detection GC Pump Failure Sensor Failure Comm. Failure The operator may select which alarms are active or inactive. CyberLAN Networking Options: Multi-Unit Sequencing: Multiple CyberAiR air conditioners incorporating A-Tech-20 controls can be configured in groups of up to 6 (six) units to allow for "N+1" redundancy/backup critical application operation. The A-Tech-20 is programmed to automatically change from current primary unit operation to secondary standby unit operation via three methods: 1) Manual ChangeOver 2) Automatic Timed (1-30 days) 3) Automatic ChangeOver on Unit Failure (if applicable): Interconnect Cable Options: 75 ft. cable length (standard option) 150 ft. cable length Capacity Assist-Mode: (Additionally Optional) In addition to switchover via manual, automatic timed or failure, the CyberLAN Multi-Unit Sequencing Capacity Assist- Mode can initiate switchover to standby unit operation to assist in the temperature and/or humidity control of the space. Capacity Assist Sensor Cable Opts: 75 ft. cable length (standard option) 150 ft. cable length (Optional) REMOTE BMS CONNECTION (ModBus Gateway) A-Tech-20 Inputs & Outputs can be remotely monitored (address readable) and remotely controlled (address writable) via any building management system (BMS) / local area network (LAN) control system that can communicate via a ModBus protocol. 16 Units Per CyberLAN ModBus: Each ModBus Gateway can accommodate up to 16 (sixteen) A/C units in a group.

Optional Features - Microprocessor Control Options C6000 The CeilAiR ceiling-mounted air conditioner shall be provided with SATS C6000 Microprocessor based Temperature and Humidity controller with Alarms. The controller shall incorporate a user-friendly operating environment, to allow easy system setup and operation. The C6000 is a complete microprocessor based control system designed for operating, controlling and monitoring the precision air conditioning unit. The C 6000 controller shall include a full-featured LED display for visual indication of the units operating conditions. The controller shall be mounted in an indoor rated steel box. The box shall be powder coated to match the environmental control unit. The box shall contain the controller board, the IO board, and all necessary transformers and internal wiring. The control box shall be wall mounted and field wired to the environmental control unit. Display Key Pad The Display Key Pad shall feature an easy to read, liquid-crystal alpha-numerical display. The keypad/display allows the operator to visually monitor and customize unit functions and settings. The self-explanatory, keypad nomenclature shall aid in the ease of location of system programming features. Field Configurable The C6000 controller is field program configurable and capable of matching the unique needs of any data center, telecommunication or other critical area. Sensor Location Options As a standard, the C6000 temperature and humidity sensor shall be factory unit mounted in the return air stream of the Precision AC unit, after the return air filter(s). System Setup & Adjustments The C6000 shall be completely factory preprogrammed, and therefore, most applications will require no field setup. However, the default set points and their ranges are easily adjusted from C6000 keypad/display. Unit Status Display The C6000 keypad displays current unit functions and room status: Current Dry Bulb Temp Set Point Current Relative Humidity Set Point Current Unit Status System ON/OFF Cooling Heating Humidifying Dehumidifying Standby Mode Reheating Manual Mode Actual Room DB Temperature Actual Room Relative Humidity Run Times The historical run-time in hours of the following major components shall be available directly from the C6000 keypad/display: (if applicable) Blower Motor(s) Humidifier Chilled Water Valve Alarm Conditions Alarm conditions activate an audible and visual indicator. An alarm shall be acknowledged through a Reset button located on the keypad display. The C6000 alerts to the following alarm conditions (if applicable): High Temperature Low Temperature High Humidity Low Humidity Smoke Detection Firestat Leak Detection Sensor Failure Dirty Filter Loss of Air Flow Summary Alarm Contact A summary alarm dry-contact (n/o) connection shall be available for remote annunciation of an alarm condition. An additional user-defined custom alarm dry-contact shall also be available on most system configurations. Alarm History The C6000 controller provides users with a recorded history of the last 80 alarms, including the time and date of the alarm occurance. Control Inputs/Outputs The C6000 is capable of both digital (on/off) and analog input and output device control. Prior to shipment, each Precision AC unit s C6000 is factory program configured to match the unit s system operational requirements. Temperature Anticipation The C6000 shall incorporate a self-calibrating and self-adjusting control logic that adjusts the re- Optional Features - Microprocessor Control Options 3-8

Optional Features - Microprocessor Control Options Optional Features - Microprocessor Control Options sponse of the SATS air conditioner to changes in temperature and humidity. The system shall provide premium setpoint accuracy while controlling the room condition s rate of change, minimizing the equipment energy consumption and maximizing the system s operating life and reliability. Power Loss Restart In the event of a loss of power to the system, the C6000 can be configured for Automatic or Manual Restart. The C6000 s non-volatile memory enables the system to restart when power is restored, without the loss of the last stored set points and other system configuration settings. Sequential Load Activation Air To minimize the Technology total in rush current Systems, I loads during system startup/restart, the C6000 controller shall be configured for time-delay sequence startup. The user can designate specific unit restart time-delays, as well as, each unit s respective electric heater and/or humidifier. Unit restart delay can be adjusted from 0 to 10 minutes. Recovery Delay After a power loss, the C6000 s Recovery Delay feature allows the system to operate without initiating any high or low temperature or humidity alarms for a delayed period. This feature allows time (15 to 60 minutes adj.) to pull-down the conditioned space s load without nuisance alarms during initial startup or power loss restart. Security Multiple security levels prevent unauthorized adjustment of critical system control parameters. Diagnostic & Service Mode The C6000 shall incorporate a unique self-diagnostics algorithm that continually tests systems functions and hardware operation. In the event of such a failure, the user will be alerted to the condition via a visual and audible alarm. Control Board The Control Board shall initiate a self-test of the control system. Input Diagnostics All system inputs and output devices shall be continuously monitored for proper operation. Night Set-back The C6000 shall include Night Set- Back occupied/non-occupied energy saving modes. This feature enables the user to customize each unit s daily 5-day/weekly and 2-day/weekend operational schedule. Remote BMS Connection MIB GATEWAY (Optional) C-6000 Inputs & Outputs shall be remotely monitored (address readable) and remotely controlled (address writable) via any building management system (BMS)/local area network (LAN) control system that can communicate via a ModBus protocol. Each C-6000 configured for BMS communication shall incorporate an RS-485 Serial Communication Port that is field connected to a factory provided wall mounted MIB Gateway. MIB-FS GATEWAY (Optional) C-6000 Inputs & Outputs shall be remotely monitored (address readable) and remotely controlled (address writable) via a building management system (BMS)/local area network (LAN) control system. Available Protocols, Modbus RTU, Modbus TCP/IP, Bacnet IP, Bacnet MSTP, Bacnet Ethernet, Metasys N-2, and Lonworks. Each C-6000 configured for BMS communication shall incorporate an RS- 485 Serial Communication Port that is field connected to a factory provided wall mounted MIB Gateway. The MIB-FS requires field configuration. Number of units, type of protocol employed, and individual data-points monitored must be configured in the MIB-FS prior to use. 3-9

Optional Features - Guide Specifications SELECTED OPTIONS Humidity Control Canister Steam Humidification The humidifier shall be an electrode steam canister type and shall have an adjustable humidity output setting from 25 to 100% of the full rated humidifier capacity, an automatic flush cycle that senses the current consumption of the humidifier and controls mineral concentration of the water. A Change Cylinder light shall notify service personnel when the humidification output is below rated requirements and when maintenance is due. Dehumidification Cycle The ceiling air conditioner shall be provided with a refrigeration based dehumidification mode. Moisture shall be condensed on the cooling coil and discharged through the condensate drain. Reheat (electric, hot gas, hot water or steam) shall be provided to offset sensible cooling during the dehumidification cycle. Electric Reheat/Heat A factory mounted and wired electric resistance heater shall be included to provide automatic sensible reheating mode during the dehumidification cycle and automatic heating mode as required. Electric heaters shall be provided with thermal / magnetic circuit breakers which shall protect each conductor. The heater elements shall be housed within a stainless steel frame with mounted supports. Included shall be one automatic resetting over-temperature safety device (pilot duty), and a non-resettable over-temperature safety device (located in main power line). Heaters shall use fast reacting nichrome wire heater elements which cool quickly when turned off eliminating residual heat problems. Hot Gas Reheat: (Models OHS-()-AS, AR, W & G only) Remote Air Cooled Condenser Hot Gas Reheat Valve Flooded Head Pressure Control Valve Relief Valve Refrigerant Reclaim Port Liquid Refrigerant Receiver Sight Glass HP Scroll Compressor Solenoid Valve LP Equalizer Line Equalizer Line Feeler Bulb Refrigerant Drier / Strainer Thermal Expansion Valve Evaporator Hot Gas Cooling Coil Reheat Coil A factory installed copper tube, alumninum fin hot gas reheat coil and valve shall be provided for automatic sensible reheating mode during dehumidification cycle. Hot compressor discharge gas shall be diverted from the condenser to the hot gas reheat coil providing energy free sensible reheating. (Note: Hot Gas Reheat is not available on systems incorporating Free-Cooling or Alternate Water Source, because no method of reheat would be available during non-compressorized FC or AWS operation.) Air Flow Hot Water Reheat/Heat A factory installed copper tube, aluminum fin heat/reheat coil and 2-way control valve shall be provided to control the flow of hot water for automatic sensible reheating mode during the dehumidification cycle and automatic heating mode as required. Steam Reheat/Heat A factory installed copper tube, aluminum fin heat/reheat coil and 2-way control valve shall be provided to control the flow of steam for automatic sensible reheating mode during the dehumidification cycle and automatic heating mode as required. (Note: Steam trap and steam piping specialities shall be provided by others not SATS.) SCR Fired Reheat/Heat The electric heat/reheat shall be controlled through a Zero Firing Silicon Controlled Rectifier (SCR) with an extruded aluminum heat sink and solid state logic system to provide close dry bulb temperature control of the conditioned air. A-Tech-20 proportional (0-10 Vdc) microprocessor controls shall be provided with the SCR Fired Electric Reheat option. High Static Pressure Belt-Drive Blowers The CeilAiR ceiling air conditioner shall be provided with a high static pressure belt-driven evaporator blower to provide standard unit CFM @ " e.s.p. (Note: Due to the probable change in standard unit blower motor horsepower for the High Static Belt-Drive Blower Optional Features - Guide Specifications 3-10

HP LP Optional Features - Guide Specifications Optional Features - Guide Specifications option, please consult your local SATS sales representative for the following unit specification changes: Blower Motor Horsepower Net Cooling Capacity Electrical Data Discharge Blower Data Unit AIr Flow Rate (CFM) will match the standard data as shown in Section 4 of this manual for each respective unit model.) Filtration CeilAiR ceiling A/C's are available with the following standard (F1) and optional (F2, F3 & F4) high efficiency IAQ conscious filtration: F1: 1", 20% Eff. Filters (standard) F2: 2", 30% Eff. Filters F3: 4", 60% Eff. Filters F4: 2", 30% Pre / 4", 60% Eff. Final Filters Air Pattern Type Filters Avail. Direct Drive 012/040: w/ Spot Cooler: F1 w/ Ducted Return: F1, F2 (n/a 024) Belt-Drive Units: w/ Ducted Return: F1, F2, F3 & F4 Filter ratings are based on dust spot efficiency ratings per ASHRAE Test Standard 52-76. (Note: F2, F3 & F4 optional filters create additional static pressure and may require the High Static Pressure Belt-Drive Option. Please consult your local Sales Representative for details.) Head Pressure Control AIR COOLED - Low Ambient 0 F, Fan Cycling / Fan Speed The air cooled system shall incorporate a low ambient fan cycling / fan speed head pressure control for year-round air conditioning system operation down to 0 F DB minimum ambient air temperature. (Note: 0 F fan cycling head pressure control is a standard feature for all CeilAiR air cooled condensers and condensing units incorporating direct drive condenser fans.) -20 F, Variable Speed Control (Model WCS-( ) Condensers) The air cooled system shall incorporate a low ambient variable speed fan head pressure control for year-round system operation down to -20 F DB minimum ambient air temperature. -30 F, Flooded Control Remote Air Cooled Condenser (Optional) Flooded ead Pressure ontrol Valve Relief Valve Liquid Refrigerant Receiver High Pressure Switch Refrigerant Reclaim Port Sight Glass Scroll Compressor Refrigerant Drier / Strainer Low Pressure Switch Liquid Line Solenoid Valve } 3-way Equalizer Line Thermal Expansion Valve Feeler Bulb Evaporator Cooling Co Air Technology The air cooled system shall incor- Systems, I porate a low ambient flooded head pressure control for year-round system operation down to -30 F DB minimum ambient air temperature. This option shall include a factory installed crankcase heater, cold-start relay, liquid refrigerant receiver with receiver liquid level sight glass and head pressure regulating valve for flooded condenser operation. DX Water Cooled and Glycol Cooled systems are available with following standard (V1) and optional (V2-V6) head pressure regulating control valves: V1: 2-way, 150 psig (standard) V2: 2-way, 350 psig V3: 2-way, 450 psig V4: 3-way, 150 psig V5: 3-way, 350 psig V6: 3-way, 450 psig valves ship loose for field installation. Each refrigerant circuit's head pressure shall be controlled by a factory (or field) installed -way water / glycol regulating valve rated for psig. w.w.p. FREE-COOLING SYSTEMS DX Water/Glycol Cooled systems with Free-Cooling are available with the following standard and optional DX head pressure and Free-Cooling valve combinations: 150 psig Rated System: (standard) DX Valves = 3-way, 150 psig FC Valve = 3-way, 300/400 psig 300 psig Rated System: (optional) DX Valves = 3-way, 350 psig FC Valve = 3-way, 300/400 psig 400 psig Rated System: (optional) DX Valves = 3-way, 450 psig FC Valve = 3-way, 400 psig Each refrigerant circuit's head pressure shall be controlled by a field installed 3-way water / glycol regulating valve rated for psig w.w.p. Free-Cooling mode cooling shall be controlled by a factory installed 3-way motorized (on/off) control valve rated for psig. w.w.p. Note: Modulating (0-10 Vdc) Free-Cooling mode cooling control is optionally available via A-Tech-20 controls and modulating 3-way FC control valve. DX - Capacity Modulation / Freeze-Protection SNAP-ACTING, Hot Gas Bypass (Models OHS-()-AS, AR, W & G only) The CeilAiR ceiling A/C shall incorporate a snap acting hot gas bypass system to provide modulation of the unit s cooling capacity and evaporator coil freeze protection under low load conditions. 3-11

HP LP Optional Features - Guide Specifications Remote Air Cooled Condenser (Optional) Flooded Head Pressure Control Valve Relief Valve Liquid Refrigerant Receiver Refrigerant Reclaim Port High Pressure Switch Sight Glass HP Scroll Compressor Hot Gas Regulator Valve (Optional) Refrigerant Drier / Strainer LP Low Pressure Switch Liquid Line Solenoid Valve Equalizer Line Thermal Expansion Valve Feeler Bulb FULL-FLOATING, Hot Gas Bypass (Models OHS-( )-()AHU/SCO only) Evaporator Cooling Co The CeilAiR ceiling A/C shall incorporate a full floating hot gas bypass system to provide modulation of the unit s cooling capacity and evaporator coil freeze protection under low load conditions. DUAL COMPRESSOR SYSTEMS (Models OHS-( )-D()) The air conditioner shall be a dual scroll compressor system with two independent refrigeration circuits to provide 50% capacity unloading, as well as component redundancy. The air conditioner shall be provided with a 2-Stage temperature controller with microprocessor based control logic for automatic staging. Chilled Water & AWS Control Valves Chilled Water and Alternate Water Source cooling shall be controlled by the following standard and optional control valves: Models OHS-012/060-C / AWS: V1: 2-way, 300 psig (standard) V2: 2-way, 400 psig V3: 3-way, 300 psig V4: 3-way, 400 psig Models OHS-072/120-C / AWS: V5: 2-way, 400 psig (standard) V6: 3-way, 400 psig Standard (On/Off) Valve Control : A -way motorized (On/Off) CW or AWS cooling control valve rated for a maximum psig w.w.p. shall be factory unit installed. Precision cooling control shall be accomplished via a spring return slow open and close valve design. Optional (0-10 Vdc) Valve Control: A -way modulating CW or AWS cooling control valve rated for a maximum psig w.w.p. shall be factory installed. Precision cooling control shall be accomplished via a 0-10 Vdc A-Tech-20 analog control signal to the proportional actuating control valve. ACCESSORIES 3 Phase Power Supply Remote Air Cooled Condenser (Optional) Flooded Head Pressure Control Valve Relief Valve Liquid Refrigerant Receiver High Pressure Switch Refrigerant Reclaim Port Sight Glass Scroll Compressor Refrigerant Drier / Strainer Low Pressure Switch Liquid Line Solenoid Valve Equalizer Line Thermal Expansion Valve Feeler Bulb Evaporator Cooling Coil Three phase power supply is available, as an option, on OHS-024, 032 & 040-() units. Compressor, (belt-drive blower motor(s) and electric heat/reheat if applicable) shall be three phase in lieu of standard single phase. All other components (5/10 lb humidifier and direct drive motor(s)) shall be single phase, with each leg of power supply balanced as closely as possible. (Note: Three phase power supply is a standard feature on models OHS-048 and larger units.) 277/1/60 Power Supply (Models OHS-012 thru-040) A main power distribution block shall be located in the air conditioner's electric box for single point power connection to a 277/1/60 power supply source. All system components (motor, heater & humidifier, if applicable) shall be rated for operation with a 277/1/60 power supply. 277V to 208V main power step-down transformers shall not be required. Note-1: Fast delivery orders sometimes require that the OHS system be shipped from stock as 208/1/60. In those cases, 277/1/60 applications are provided with a field installed 277 to 208 step-down transformer. Condensate Pump A Low-Profile condensate pump designed for limited height ceiling plenum installation shall be factory provided for automatic removal of condensate and humidifier flush water (if applicable). The condensate pump shall be field installed as a standard. A heavy duty All-Metal condensate pump shall be provided for automatic removal of condensate and humidifier flush water (if applicable). The pump shall be constructed with a cast aluminum reservoir and impeller; aluminum reservoir cover and impeller chamber cover; stainless steel fasteners and a stainless steel motor shaft. The condensate pump meets most local codes for certification as a "plenum rated" pump. The condensate pump shall be field installed only. Optional Features - Guide Specifications 3-12

Optional Features - Guide Specifications Optional Features - Guide Specifications The condensate pump shall be specifically designed to operate with the higher condensate temperatures caused by the flush and drain cycle of the electrode canister humidifiers. Dual Overflow Safety Switches: In addition to the standard condensate pan overflow safety float(s), the condensate pump shall include an internal overflow safety float switch which, when wired to the A/C's remote stop/start terminals, shall open the A/C's control circuit, thereby shutting the A/C down in the event of a condensate overflow. 1 to 3 Ton Models: OHS-012/040-HAS, HAR, HAHU, HW, HG & HC 4 to 10 Ton Models: OHS-048/120-()AR, AHU, W, G & C Factory Installed In-Pan Condensate Pump (Not Available w/ Humidifier) Smoke Detector Air Technology A photo-electric smoke detector Systems, shall I Factory Installed - Optional Low-Profile Condensate Pump The CeilAiR Low-Profile condensate pump can be factory installed as an option on the following models: OHS-012/040-AS, AHU, AR, W, G & C be factory installed in the CeilAiR evaporator section on the suction side of the evaporator blower. The smoke detector shall be rated for high air velocity applications, and shall shut down the air conditioner upon sensing smoke in the return air stream. Firestat water/leak detector per CeilAiR A/C unit shall be factory provided for remote field installation. Upon sensing a water leak, the normally closed water detector control circuit shall open, thereby shutting down the air conditioner's water producing operations. Dual (two) - Spot Type Detectors: Quantity 2(two) remote spot type water/leak detectors per CeilAiR A/C unit shall be factory provided for remote field installation. Upon sensing a water leak, the normally closed water detector control circuit shall open, thereby shutting down the air conditioner's water producing operations. 20 Ft. - Strip/Cable Type Detector: A 20 Ft. in length remote strip/cable type water/leak detector shall be factory provided for remote field installation. In addition to the 20 ft. cable, a 24V power water detector power module shall require field mounting and wiring to factory provided terminal connection. Upon sensing a water leak, the normally closed water detector control circuit shall open, thereby shutting down the air conditioner's water producing operations. 3-13 Factory Installed Low-Profile Condensate Pump In-Pan Condensate Pump The CeilAiR In-Pan condensate pump can be factory installed as an option in the following models: The air conditioner shall be provided with a factory wired and mounted firestat. The firestat shall shut down the air conditioner upon sensing a high return air temperature. Remote Water Detectors Single (one) - Spot Type Detector: Quantity 1(one) remote spot type Compressor Sound Jackets (Air Cooled 0 F OHS-()-AS, and Water/Glycol Cooled Only!) Each compressor shall be provided with a factory installed acoustical sound jacket. Each sound jacket shall have a snap closure system for ease of removing and reinstallation during

Optional Features - Guide Specifications maintenance. Each sound jacket shall have a Noise Reduction Coefficient NRC of 85 per ASTM C-423 and a Sound Transmission Loss STC of 11 per ASTM E-90. Low Entering Condenser Water Kit For Water/Glycol systems that require entering condenser water temperatures from 65 F to 45 F, the system shall be provided with a factory installed in-line liquid refrigerant receiver to help reduce the negative effect the low condenser source can have on the evaporator. A compressor crankcase heater shall also be provided standard with this option. (Compressor Sound Jackets are not available with this option due to the crankcase heater). Main Power - Electric Non-Fused Service Switch The main power service switch shall be the NEMA 3R or NEMA-12 nonfused type, depending on the OHS model selected. The disconnect switch shall have a lockable handle. (Note: Field installed main power service switches shall be the standard option, however, switches can be optionally factory mounted on select CeilAiR systems. Factory mounting of disconnect switches is not available on models OHS-012, 018, 024 & 032-AS incorporating the "Ducted" Evaporator Connection option.) Refrigerant Lines w/ Quick Disconnects (AHU/RCU-O Systems Only!) Each refrigerant circuit shall be supplied with factory assembled, soft-copper refrigerant line set 50 ft. in length complete with quick disconnect couplings and schraeder service ports. The quick disconnect couples shall be industrial grade, self-sealing, reusable type couplings. Suction lines shall be insulated, liquid lines shall be uninsulated. ENERGY $AVING COOLING OPTIONS Free-Cooling Option (Water/Glycol Economizer Coil) A Free-Cooling cycle shall be provided to take advantage of low ambient air temperature conditions to provide compressor-less cooling. When outdoor temperatures are sufficiently low (setpoint adjustable), source coolant shall be diverted from the DX - Water or Glycol Cooled refrigerant condenser to a chilled water/glycol coil (free-cooling coil & control valve). The drycooler capacity shall be increased by reversing the typical drycooler fan(s) cycling sequence of operation to provide the maximum cooling effect for the coolant solution. The free-cooling coil shall be closely sized to match the refrigerant cooling capacity to increase the number of hours that the system can operate in the free-cooling mode, thereby increasing the operating savings of the installation. Alternate Water Source (Chilled Water by "Day" and DX-Backup by "Night") An Alternate Water Source cooling cycle shall be provided to utilize building chilled water supply when available as the primary cooling cycle with DX - Air Cooled refrigerant cooling as a backup. The air conditioner shall have two cooling systems: 1) A chilled water / glycol circuit (AWS coil & control valve); 2) A backup DX compressorized refrigerant circuit. Remote Liquid Chiller (by others) Remote Air Cooled Condenser Flooded Head Pressure Control Valve Relief Valve Refrigerant Reclaim Port Receiver Pump (by others) Flow FS Switch Alternate Water Source Aqua-Stat T Sight Glass HP Scroll Compressor Solenoid Valve Refrigerant Drier / Strainer Alternate Water Source Cooling Coil AWS Control Valve LP Equalizer Line Expansion Valve Feeler Bulb DX - Cooling Coil When chilled water is available, the system shall operate as a chilled water unit, without the compressor operating. When the water temperature is too high, or the water flow rate is not sufficient, the air conditioner shall automatically switch to the DX compressorized refrigerant operation. Optional Features - Guide Specifications 3-14

Performance Data - Index Performance Data - Equipment Schedule Data MODEL TYPE... page Self-Contained Air Cooled: Performance Data Index DX - Air Cooled 1-3 Ton, models OHS-012/040-AS... 4-2/3 Split Air Cooled Remote w/ Condenser: 1-5 Ton, models OHS-012/060-AR... 4-2/3 4-10 Ton, models OHS-048/120-DAR... 4-4 Split Air Cooled Air Handling w/ Condensing Unit: 1-5 Ton, models OHS-012/060-AHU... 4-5 4-10 Ton, models OHS-048/120-DAHU... 4-6 Air Technology DX - Water Cooled Systems, I Self-Contained Water Cooled: 1-5 Ton, models OHS-012/060-W... 4-7 4-10 Ton, models OHS-048/120-DW... 4-8 DX - Glycol Cooled Self-Contained Glycol Cooled: 1-5 Ton, models OHS-012/060-G... 4-9 4-10 Ton, models OHS-048/120-DG... 4-10 Chilled Water Chilled Water Air Handlers: 1-3 Ton, models OHS-012/040-C... 4-11/12 4-10 Ton, models OHS-048/120-C... 4-13/14 42 F EWT Performance Data... 4-15 50 F EWT Performance Data... 4-16 DX with Free-Cooling Self-Contained Glycol Cooled w/ FC: 1-5 Ton, models OHS-012/060-G-FC... 4-17/19 4-10 Ton, models OHS-048/120-DG-FC... 4-20/21 Self-Contained Water Cooled w/ FC: 1-5 Ton, models OHS-012/060-W-FC... 4-22/23 4-10 Ton, models OHS-048/120-DW-FC... 4-24/25 DX with Alternate Water Source Alternate Water Source: 1-5 Ton, models OHS-012/060-( )-AWS... 4-26 4-10 Ton, models OHS-048/120-D()-AWS... 4-27 42 F / 50 F EWT Performance Data... 4-28 4-1

Air Cooled - 1 to 5 Ton "OHS" (Single Compressor), Self-Contained & Split OHS Model 012-AS/AR 018-AS/AR 024-AS/AR 032-AS/AR 040-AS/AR 048-AR 060-AR NET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings) 80 FDB/67 FWB, 50% RH Total 13,985 19,465 25,740 32,770 35,800 59,970 65,975 Sensible 10,585 15,235 19,470 23,430 27,950 47,685 52,435 75 FDB/62.5 FWB, 50% RH Total 12,710 18,000 23,600 30,000 32,650 55,010 60,470 Sensible 10,645 15,400 19,025 22,920 27,430 46,960 51,630 72 FDB/60 FWB, 50% RH Total 12,000 17,160 22,465 28,500 31,050 52,400 57,580 Sensible 10,405 15,100 18,580 22,400 26,690 46,020 50,590 80 FDB/65 FWB, 45% RH Total 13,425 18,860 24,600 31,320 34,700 57,680 63,350 Sensible 11,840 16,990 20,900 24,905 30,900 52,080 57,325 75 FDB/61 FWB, 45% RH Total 12,270 17,490 23,030 28,895 32,080 53,415 58,620 Sensible 11,385 16,400 20,500 23,940 29,650 50,250 55,285 72 FDB/58.5 FWB, 45% RH Total 11,585 16,665 22,000 27,400 30,530 50,875 55,790 Sensible 11,110 16,065 20,060 23,600 28,990 49,180 54,080 Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V 17,135 (5.0) 17,135 (5.0) 17,135 (5.0) 17,425 (5.1) 17,955 (5.3) 37,350 (10.9) 38,900 (11.4) @ 230V 18,840 (5.5) 18,840 (5.5) 18,840 (5.5) 19,130 (5.6) 19,660 (5.8) 43,140 (12.6) 44,690 (13.1) @ 460V 17,355 (5.1) 17,355 (5.1) 17,355 (5.1) 17,645 (5.2) 18,175 (5.3) 37,350 (10.9) 38,900 (11.4) @ 277/480V 18,065 (5.3) 18,065 (5.3) 18,065 (5.3) 18,355 (5.4) 18,885 (5.5) 38,835 (11.4) 40,385 (11.8) HOT GAS REHEAT BTU/H 11,390 17,030 21,190 25,650 30,920 49,310 54,210 HOT WATER REHEAT / HEAT - Reheat rated @ 180 F Entering Water Temperature, EAT = 72 F DB BTU/H 20,690 32,420 34,880 50,360 55,320 97,140 111,220 GPM 1 2 2 3 3 4 5 Pressure Drop, ft. wg 0.1 0.3 0.3 0.3 0.3 0.4 0.6 Control Motorized Motorized Motorized Motorized Motorized Motorized Motorized STEAM REHEAT / HEAT - nominally Reheat rated @ 5 psig Steam, EAT = 72 F DB BTU/H (nominal) 12,000 18,000 24,000 32,000 40,000 48,000 60,000 Condensate (lb/hr) 13 19 25 34 42 50 63 Control Motorized Motorized Motorized Motorized Motorized Motorized Motorized Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) 2-5, (1.7) 2-5, (1.7) 2-5, (1.7) 2-5, (1.7) 2-5, (1.7) 4-10, (3.4) 4-10, (3.4) Std Control Cycling Cycling Cycling Cycling Cycling Cycling Cycling Evaporator Blower / Motor - DWDI Centrifugal Horsepower 1/4 Hp 1/4 Hp 1/4 Hp 1/3 Hp 1/2 Hp 1 Hp 1-1/2 Hp CFM @ ext. st. press. 500 @ 0.3" 750 @ 0.3" 900 @ 0.3" 1,000 @ 0.3" 1,415 @ 0.3" 2,200 @ 0.5" 2,500 @ 0.5" Std. Drive Method Direct Driven Direct Driven Direct Driven Direct Driven Direct Driven Belt Driven Belt Driven Performance Data - Air Cooled (1 to 5 ton Systems) Continued on next page 4-2

Performance Data - Air Cooled (1 to 5 ton Systems) Air Cooled - 1 to 5 Ton "OHS" (Single Compressor), Self-Contained & Split OHS Model 012-AS/AR 018-AS/AR 024-AS/AR 032-AS/AR 040-AS/AR 048-AR 060-AR NET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings) Evaporator Coil - Aluminum Fin, Copper Tube Rows/Face Area (Ft2) 3/ 2.1 3/ 2.1 3/ 2.1 3/ 2.8 3/ 2.8 4/ 5.0 4/ 5.0 Compressor - Heat pump duty rated, HCFC Ozone Safe R-22 Type, (Qty.) Recip., (1) Scroll, (1) Scroll, (1) Scroll, (1) Scroll, (1) Scroll, (1) Scroll, (1) Watts - Input 1,405 1,614 2,092 2,711 2,842 4,415 4,959 Tot. Heat of Rej. (BTU/H) 17,595 24,260 31,480 40,500 43,830 70,080 77,395 Filters - 1" deep throwaway Nom. Size (in.), (Qty.) 20x20, (1) 20x20, (1) 20x20, (1) 20x20, (1) 20x20, (1) 20x16, (2) 20x16, (2) Connection Sizes - Copper, (Please refer to CeilAiR IOM Manual for proper interconnecting refrigerant line sizing.) Refrigerant: (OHS-012/060-()AR only) Liquid Line, (Qty.) 3/8" OD, (1) 3/8" OD, (1) 3/8" OD, (1) 1/2" OD (1) 1/2" OD (1) 1/2" OD (1) 1/2" OD (1) Hot Gas Line, (Qty.) 1/2" OD, (1) 1/2" OD, (1) 5/8" OD, (1) 5/8" OD (1) 7/8" OD (1) 7/8" OD (1) 7/8" OD (1) Condensate Drain 7/8" OD 7/8" OD 7/8" OD 7/8" OD 7/8" OD 3/4" FPT 3/4" FPT Humidifier Inlet 1/4" OD 1/4" OD 1/4" OD 1/4" OD 1/4" OD 1/4" OD 1/4" OD Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Wt. (OHS-()-AS) 210 lbs 215 lbs 220 lbs 255 lbs 265 lbs N/A N/A Approx. Wt. (OHS-()-AR) 160 lbs 165 lbs 170 lbs 205 lbs 215 lbs 370 lbs 380 lbs Air Cooled Condenser Data - (Self Contained) OHS Model @ 95 F Amb. 012-AS 018-AS 024-AS 032-AS 040-AS 048 060 Air Technology Systems, I Integral Centrifugal Blower, Air Cooled Condenser Data for Self-Contained Model OHS-( )-AS Condenser Blower Data Condenser Coil CFM @ e.s.p 750 @ 0.3" 1,400 @ 0.3" 1,400 @ 0.3" 2,000 @ 0.3" 2,000 @ 0.3" N/A N/A Motor Horsepower 1/3 Hp. 1/2 Hp. 1/2 Hp. 1/2 Hp. 1/2 Hp. N/A N/A Drive Method Direct Direct Direct Direct Direct N/A N/A Rows/Face Area (ft 2 ) 4 / 2.1 4 / 2.1 4 / 2.1 4 / 2.8 4 / 2.8 N/A N/A Low Ambient Control Note: Std. Minimum Op. Amb. 0 F 0 F 0 F 0 F 0 F N/A N/A Head Pressure Method MotorSpeed MotorSpeed MotorSpeed MotorSpeed MotorSpeed N/A N/A Compressor is integral to the OHS-( )-AS Self-Contained Unit. Please refer to the SATS Heat Rejection Engineering Manual for specification and performance data on Remote Outdoor and Indoor Air Cooled Condensers used with OHS-( )-()AR Split Systems. 4-3

Air Cooled - 4 to 10 Ton "OHS" (Dual Compressors) OHS Model ( )-048-DAR ( )-072-DAR ( )-084-DAR ( )-120-DAR NET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings) 80 FDB/67 FWB, 50% RH Total 53,740 73,870 92,065 130,435 Sensible 40,860 62,110 71,070 98,030 75 FDB/62.5 FWB, 50% RH Total 49,250 67,550 83,980 119,590 Sensible 40,290 61,525 70,840 96,230 72 FDB/60 FWB, 50% RH Total 46,950 64,275 79,760 113,380 Sensible 39,480 60,215 69,565 94,580 80 FDB/65 FWB, 45% RH Total 51,610 70,730 87,660 124,890 Sensible 44,310 68,085 79,060 106,480 75 FDB/61 FWB, 45% RH Total 47,860 65,590 80,770 115,540 Sensible 42,830 64,070 76,215 102,850 72 FDB/58.5 FWB, 45% RH Total 45,620 62,750 76,660 109,955 Sensible 42,040 61,910 73,710 100,920 Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V/460V 36,810 (10.9) 38,900 (11.4) 40,510 (11.9) 43,580 (12.8) @ 230V 42,600 (12.5) 44,690 (13.1) 46,300 (13.6) 49,370 (14.5) @ 480V 38,295 (11.2) 40,385 (11.8) 41,995 (12.3) 45,065 (13.2) HOT GAS REHEAT BTU/H 21,150 32,300 37,190 50,520 HOT WATER REHEAT / HEAT - Reheat rated @ 180 F Entering Water Temperature, EAT = 72 F DB BTU/H 50,360 97,880 99,830 130,500 GPM 3 3 3 10 Pressure Drop, ft. wg 0.3 0.3 0.3 2.2 Control Motorized Motorized Motorized Motorized STEAM REHEAT / HEAT - nominally Reheat rated @ 5 psig Steam, EAT = 72 F DB BTU/H (nominal) 48,000 72,000 90,000 120,000 Condensate (lbs/hr) 50 75 94 125 Control Motorized Motorized Motorized Motorized Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) 4-10, (3.4) 4-15, (5.1) 4-15, (5.1) 4-15, (5.1) Std Control Cycling Cycling Cycling Cycling Evaporator Blower / Motor - DWDI Centrifugal - Belt Driven, Variable Pitch Pulleys Horsepower 3/4 Hp 1-1/2 Hp 2 Hp 3 Hp CFM @ ext. st. press. 1,800 @ 0.5" 3,000 @ 0.5" 3,350 @ 0.5" 4,400 @ 0.5" Drive Method Belt Driven Belt Driven Belt Driven Belt Driven Evaporator Coil - Aluminum Fin, Copper Tube Rows 3 4 4 4 Face Area (Ft2) 4.1 6.7 6.7 10 Compressor - Heat pump duty rated, HCFC Ozone Safe R-22 Type, (Qty.) Scroll, (2) Scroll, (2) Scroll, (2) Scroll, (2) Watts Input (per compressor) 2,054 2,797 3,848 4,959 Total Heat of Rejection, (BTU/H) 63,270 86,645 110,250 153,440 Filters - 1" deep throwaway Nominal Size (in.), (Qty.) 16x20, (2) 20x20, (2) 20x20, (2) 24x24, (2) Connection Sizes - Copper, (Please refer to CeilAiR IOM Manual for proper interconnecting refrigerant line sizing.) Refrigerant: Liquid Line, (Qty.) 3/8" OD, (2) 1/2" OD, (2) 1/2" OD, (2) 1/2" OD, (2) Hot Gas Line, (Qty.) 5/8" OD, (2) 5/8" OD, (2) 7/8" OD, (2) 7/8" OD, (2) Condensate Drain, (w/ In-Pan Pump) 3/4" FPT, (1/2"OD) 3/4" FPT, (1/2"OD) 3/4" FPT, (1/2"OD) 3/4" FPT, (1/2"OD) Humidifier Inlet 1/4" OD 1/4" OD 1/4" OD 1/4" OD Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Weight 420 lbs 450 lbs 510 lbs 580 lbs Performance Data - Air Cooled (4 to 10 Ton, DUAL Compressor) 4-4

Performance Data - Air Cooled AHU/RCU (1 to 5 ton Systems) Air Cooled AHU/RCU - 1 to 5 Ton "OHS" OHS Model 012-AHU 018-AHU 024-AHU 032-AHU 040-AHU 048-AHU 060-AHU NET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings) 80 FDB/67 FWB, 50% RH Total 13,985 19,465 25,740 32,940 36,505 59,970 65,975 Sensible 10,585 15,235 19,470 24,595 30,065 47,685 52,435 75 FDB/62.5 FWB, 50% RH Total 12,710 18,000 23,600 30,355 33,750 55,010 60,470 Sensible 10,645 15,400 19,025 24,235 29,300 46,960 51,630 72 FDB/60 FWB, 50% RH Total 12,000 17,160 22,465 29,035 32,320 52,400 57,580 Sensible 10,405 15,100 18,580 23,680 28,500 46,020 50,590 80 FDB/65 FWB, 45% RH Total 13,425 18,860 24,600 31,670 35,120 57,680 63,350 Sensible 11,840 16,990 20,900 27,560 33,385 52,080 57,325 75 FDB/61 FWB, 45% RH Total 12,270 17,490 23,030 29,500 32,790 53,415 58,620 Sensible 11,385 16,400 20,500 26,251 31,530 50,250 55,285 72 FDB/58.5 FWB, 45% RH Total 11,585 16,665 22,000 28,220 31,410 50,875 55,790 Sensible 11,110 16,065 20,060 25,570 30,525 49,180 54,080 Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V 17,135 (5.0) 17,135 (5.0) 17,135 (5.0) 17,425 (5.1) 17,955 (5.3) 37,350 (10.9) 38,900 (11.4) @ 230V 18,840 (5.5) 18,840 (5.5) 18,840 (5.5) 19,130 (5.6) 19,660 (5.8) 43,140 (12.6) 44,690 (13.1) @ 460V 17,355 (5.1) 17,355 (5.1) 17,355 (5.1) 17,645 (5.2) 18,175 (5.3) 37,350 (10.9) 38,900 (11.4) Air Technology Systems, I @ 277/480V 18,065 (5.3) 18,065 (5.3) 18,065 (5.3) 18,355 (5.4) 18,885 (5.5) 38,835 (11.4) 40,385 (11.8) HOT WATER REHEAT / HEAT - Reheat rated @ 180 F Entering Water Temperature, EAT = 72 F DB BTU/H 20,690 32,420 34,880 50,360 55,320 97,140 111,220 GPM 1 2 2 3 3 4 5 Pressure Drop, ft. wg 0.1 0.3 0.3 0.3 0.3 0.4 0.6 Control Motorized Motorized Motorized Motorized Motorized Motorized Motorized STEAM REHEAT / HEAT - nominally Reheat rated @ 5 psig Steam, EAT = 72 F DB BTU/H (nominal) 12,000 18,000 24,000 32,000 40,000 48,000 60,000 Condensate (lb/hr) 13 19 25 34 42 50 63 Control Motorized Motorized Motorized Motorized Motorized Motorized Motorized Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) 2-5, (1.7) 2-5, (1.7) 2-5, (1.7) 2-5, (1.7) 2-5, (1.7) 4-10, (3.4) 4-10, (3.4) Std Control Cycling Cycling Cycling Cycling Cycling Cycling Cycling Evaporator Blower / Motor - DWDI Centrifugal Horsepower 1/4 Hp 1/4 Hp 1/4 Hp 1/3 Hp 1/2 Hp 1 Hp 1-1/2 Hp CFM @ ext. st. press. 500 @ 0.3" 750 @ 0.3" 900 @ 0.3" 1,000 @ 0.3" 1,415 @ 0.3" 2,200 @ 0.5" 2,500 @ 0.5" Std. Drive Method Direct Driven Direct Driven Direct Driven Direct Driven Direct Driven Belt Driven Belt Driven Opt. Drive Method Belt-Driven Belt-Driven Belt-Driven Belt-Driven Belt-Driven N/A N/A Evaporator Coil - Aluminum Fin, Copper Tube Rows/Face Area (Ft2) 3/ 2.1 3/ 2.1 3/ 2.1 3/ 2.8 3/ 2.8 4/ 5.0 4/ 5.0 Filters - 1" deep throwaway Nom. Size (in.), (Qty.) 20x20, (1) 20x20, (1) 20x20, (1) 20x20, (1) 20x20, (1) 20x16, (2) 20x16, (2) Connection Sizes - Copper, (Please refer to CeilAiR IOM Manual for proper interconnecting refrigerant line sizing.) Refrigerant: Suction, (Qty.) 5/8" OD, (1) 3/4" OD, (1) 3/4" OD, (1) 3/4" OD (1) 7/8" OD (1) 7/8" OD (1) 7/8" OD (1) Liquid Line, (Qty.) 3/8" OD, (1) 3/8" OD, (1) 3/8" OD, (1) 1/2" OD (1) 1/2" OD (1) 1/2" OD (1) 1/2" OD (1) Condensate Drain 7/8" OD 7/8" OD 7/8" OD 7/8" OD 7/8" OD 3/4" FPT 3/4" FPT Humidifier Inlet 1/4" OD 1/4" OD 1/4" OD 1/4" OD 1/4" OD 1/4" OD 1/4" OD Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Wt. 120 lbs 120 lbs 120 lbs 155 lbs 165 lbs 270 lbs 280 lbs Please refer to the SATS Heat Rejection Engineering Manual for specification and performance data on Remote Outdoor and Indoor Air Cooled Condensers 4-5

Air Cooled DAHU/DRCU - 4 to 10 Ton "OHS" (Dual) OHS Model ( )-048-DAHU ( )-072-DAHU ( )-084-DAHU ( )-120-DAHU NET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings) 80 FDB/67 FWB, 50% RH Total 53,740 73,870 92,065 130,435 Sensible 40,860 62,110 71,070 98,030 75 FDB/62.5 FWB, 50% RH Total 49,250 67,550 83,980 119,590 Sensible 40,290 61,525 70,840 96,230 72 FDB/60 FWB, 50% RH Total 46,950 64,275 79,760 113,380 Sensible 39,480 60,215 69,565 94,580 80 FDB/65 FWB, 45% RH Total 51,610 70,730 87,660 124,890 Sensible 44,310 68,085 79,060 106,480 75 FDB/61 FWB, 45% RH Total 47,860 65,590 80,770 115,540 Sensible 42,830 64,070 76,215 102,850 72 FDB/58.5 FWB, 45% RH Total 45,620 62,750 76,660 109,955 Sensible 42,040 61,910 73,710 100,920 Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V/460V 36,810 (10.9) 38,900 (11.4) 40,510 (11.9) 43,580 (12.8) @ 230V 42,600 (12.5) 44,690 (13.1) 46,300 (13.6) 49,370 (14.5) @ 480V 38,295 (11.2) 40,385 (11.8) 41,995 (12.3) 45,065 (13.2) HOT WATER REHEAT / HEAT - Reheat rated @ 180 F Entering Water Temperature, EAT = 72 F DB BTU/H 50,360 97,880 99,830 130,500 GPM 3 3 3 10 Pressure Drop, ft. wg 0.3 0.3 0.3 2.2 Control Motorized Motorized Motorized Motorized STEAM REHEAT / HEAT - nominally Reheat rated @ 5 psig Steam, EAT = 72 F DB BTU/H (nominal) 48,000 72,000 90,000 120,000 Condensate (lbs/hr) 50 75 94 125 Control Motorized Motorized Motorized Motorized Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) 4-10, (3.4) 4-15, (5.1) 4-15, (5.1) 4-15, (5.1) Std Control Cycling Cycling Cycling Cycling Evaporator Blower / Motor - DWDI Centrifugal - Belt Driven, Variable Pitch Pulleys Horsepower 3/4 Hp 1-1/2 Hp 2 Hp 3 Hp CFM @ ext. st. press. 1,800 @ 0.5" 3,000 @ 0.5" 3,350 @ 0.5" 4,400 @ 0.5" Drive Method Belt Driven Belt Driven Belt Driven Belt Driven Evaporator Coil - Aluminum Fin, Copper Tube Rows/Face Area (Ft2) 3/ 4.1 4/ 6.7 4/ 6.7 4/ 10.0 Filters - 1" deep throwaway Nominal Size (in.), (Qty.) 16x20, (2) 20x20, (2) 20x20, (2) 24x24, (2) Connection Sizes - Copper, (Please refer to CeilAiR IOM Manual for proper interconnecting refrigerant line sizing.) Refrigerant: Suction Line, (Qty.) 3/4" OD, (2) 7/8" OD, (2) 7/8" OD, (2) 7/8" OD, (2) Liquid Line, (Qty.) 3/8" OD, (2) 1/2" OD, (2) 1/2" OD, (2) 1/2" OD, (2) Condensate Drain, (w/ In-Pan Pump) 3/4" FPT, (1/2"OD) 3/4" FPT, (1/2"OD) 3/4" FPT, (1/2"OD) 3/4" FPT, (1/2"OD) Humidifier Inlet 1/4" OD 1/4" OD 1/4" OD 1/4" OD Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Weight 320 lbs 350 lbs 410 lbs 480 lbs Please refer to the SATS Heat Rejection Engineering Manual for specification and performance data on Remote Outdoor and Indoor Air Cooled Condensing Units Performance Data - Air Cooled DAHU/DRCU (4-10 Ton, DUAL Compressor) 4-6

Performance Data - Water Cooled (1 to 5 Ton Systems) Water Cooled - 1 to 5 Ton "OHS" OHS Model ( )-012-W ( )-018-W ( )-024-W ( )-032-W ( )-040-W ( )-048-W ( )-060-W NET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings) 80 FDB/67 FWB, 50% RH 75 FDB/62.5 FWB, 50% RH 72 FDB/60 FWB, 50% RH Total 16,394 21,125 27,990 35,550 39,115 64,250 70,665 Sensible 11,675 16,000 20,455 24,575 29,500 49,240 54,100 Total 14,850 19,345 25,750 32,700 35,830 58,820 64,690 Sensible 11,340 15,625 20,100 24,265 28,800 48,580 53,445 Total 14,000 18,380 24,560 31,150 34,109 56,070 61,650 Sensible 11,050 16,400 19,680 23,775 28,093 47,600 52,345 80 FDB/65 FWB, 45% RH Total 15,570 20,430 26,840 34,170 37,355 61,635 67,730 Sensible 12,440 17,645 21,825 26,300 31,600 53,560 58,955 75 FDB/61 FWB, 45% RH Total 14,380 18,950 24,920 31,600 35,120 57,130 62,760 Sensible 12,250 17,040 21,075 25,360 30,560 51,780 56,975 72 FDB/58.5 FWB, 45% RH Total 13,620 18,065 23,685 30,060 33,460 54,460 59,795 Sensible 12,010 16,710 20,700 24,820 30,470 50,820 55,910 Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V 17,135 (5.0) 17,135 (5.0) 17,135 (5.0) 17,425 (5.1) 17,955 (5.3) 37,350 (10.9) 38,900 (11.4) @ 230V 18,840 (5.5) 18,840 (5.5) 18,840 (5.5) 19,130 (5.6) 19,660 (5.8) 43,140 (12.6) 44,690 (13.1) @ 460V 17,355 (5.1) 17,355 (5.1) 17,355 (5.1) 17,645 (5.2) 18,175 (5.3) 37,350 (10.9) 38,900 (11.4) @ 277/480V 18,065 (5.3) 18,065 (5.3) 18,065 (5.3) 18,355 (5.4) 18,885 (5.5) 38,835 (11.4) 40,385 (11.8) HOT GAS REHEAT BTU/H 12,440 17,690 22,150 27,045 32,425 51,010 56,120 HOT WATER REHEAT / HEAT - Reheat rated @ 180 F Entering Water Temperature, EAT = 72 F DB Air Technology Systems, I BTU/H 20,690 32,420 34,880 50,360 55,320 97,140 111,220 GPM 1 2 2 3 3 4 5 Pressure Drop, ft. wg 0.1 0.3 0.3 0.3 0.3 0.4 0.6 Control Motorized Motorized Motorized Motorized Motorized Motorized Motorized STEAM REHEAT / HEAT - nominally Reheat rated @ 5 psig Steam, EAT = 72 F DB BTU/H (nominal) 12,000 18,000 24,000 32,000 40,000 48,000 60,000 Condensate (lb/hr) 13 19 25 34 42 50 63 Control Motorized Motorized Motorized Motorized Motorized Motorized Motorized Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) 2-5, (1.7) 2-5, (1.7) 2-5, (1.7) 2-5, (1.7) 2-5, (1.7) 4-10, (3.4) 4-10, (3.4) Std Control Cycling Cycling Cycling Cycling Cycling Cycling Cycling Evaporator Blower / Motor - DWDI Centrifugal Horsepower 1/4 Hp 1/4 Hp 1/4 Hp 1/3 Hp 1/2 Hp 1 Hp 1-1/2 Hp CFM @ ext. st. press. 500 @ 0.3" 750 @ 0.3" 900 @ 0.3" 1,000 @ 0.3" 1,415 @ 0.3" 2,200 @ 0.5" 2,500 @ 0.5" Std. Drive Method Direct Driven Direct Driven Direct Driven Direct Driven Direct Driven Belt Driven Belt Driven Opt. Drive Method Belt-Driven Belt-Driven Belt-Driven Belt-Driven Belt-Driven N/A N/A Evaporator Coil - Aluminum Fin, Copper Tube Rows/Face Area (Ft2) 3/ 2.1 3/ 2.1 3/ 2.1 3/ 2.8 3/ 2.8 4/ 5.0 4/ 5.0 Compressor - Heat pump duty rated, HCFC Ozone Safe R-22 Type, (Qty.) Recip., (1) Scroll, (1) Scroll, (1) Scroll, (1) Scroll, (1) Scroll, (1) Scroll, (1) Watts Input 1,245 1,239 1,633 2,118 2,222 3,451 3,867 Water Cooled Condenser Data - Based on 0% glycol solution Tot Heat of Reject. 18,900 Btu/h 24,350 Btu/h 32,145 Btu/h 41,325 Btu/h 44,865 Btu/h 70,600 Btu/h 77,890 Btu/h GPM @ 85 F EWT 3.8 GPM 4.9 GPM 6.4 GPM 8.3 GPM 9.0 GPM 14.1 GPM 15.6 GPM Total Unit PD (Ft. of H2O) 10.0 Ft. 6.5 Ft. 11.0 Ft. 11.7 Ft. 13.9 Ft. 16.5 Ft. 22.7 Ft. Type Coaxial Coaxial Coaxial Coaxial Coaxial Coaxial Coaxial Head Pressure Control Standard Control - 2-way, 150 psig Water Regulating Valve, (factory installed) Optional Control - Refer to the Optional Guide Specifications Section for High Pressure and 3-way Valve Options! Connection Sizes - Copper Condensate Drain 7/8" OD 7/8" OD 7/8" OD 7/8" OD 7/8" OD 3/4" FPT 3/4" FPT Humidifier Inlet 1/4" OD 1/4" OD 1/4" OD 1/4" OD 1/4" OD 1/4" OD 1/4" OD Source Water In/Out 5/8" OD 7/8" OD 7/8" OD 7/8" OD 7/8" OD 1-1/8" OD 1-1/8" OD Filters - 1" deep throwaway Nom. Size (in.), (Qty.) 20x20 (1) 20x20, (1) 20x20, (1) 20x20, (1) 20x20, (1) 20x16, (2) 20x16, (2) Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Weight 180 lbs 200 lbs 210 lbs 245 lbs 260 lbs 395 lbs 405 lbs Please refer to the SATS Heat Rejection Engineering Manual for specification and performance data on Remote Outdoor and Indoor Air Cooled Condensing Units 4-7

Water Cooled - 4 to 10 Ton "OHS" (Dual) OHS Model OHS-048-DW OHS-072-DW OHS-084-DW OHS-120-DW NET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings) 80 FDB/67 FWB, 50% RH Total 57,200 79,165 98,760 139,210 Sensible 42,320 63,770 73,735 101,715 75 FDB/62.5 FWB, 50% RH Total 52,580 72,510 90,475 127,660 Sensible 41,620 63,225 72,760 100,040 72 FDB/60 FWB, 50% RH Total 50,100 69,035 86,090 121,610 Sensible 40,820 62,045 71,400 98,010 80 FDB/65 FWB, 45% RH Total 54,890 75,840 94,300 133,265 Sensible 45,740 70,425 81,160 110,080 75 FDB/61 FWB, 45% RH Total 50,960 70,200 87,050 123,460 Sensible 44,180 67,685 78,670 106,285 72 FDB/58.5 FWB, 45% RH Total 48,620 66,785 82,760 117,645 Sensible 43,390 65,220 77,320 104,340 Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V/460V 36,810 (10.9) 38,900 (11.4) 40,510 (11.9) 43,580 (12.8) @ 230V 42,600 (12.5) 44,690 (13.1) 46,300 (13.6) 49,370 (14.5) @ 480V 38,295 (11.2) 40,385 (11.8) 41,995 (12.3) 45,065 (13.2) HOT GAS REHEAT BTU/H 21,850 33,195 38,200 52,520 HOT WATER REHEAT / HEAT - Reheat rated @ 180 F Entering Water Temperature, EAT = 72 F DB BTU/H 50,360 97,880 99,830 130,500 GPM 3 3 3 10 Pressure Drop, ft. wg 0.3 0.3 0.3 2.2 Control Motorized Motorized Motorized Motorized STEAM REHEAT / HEAT - nominally Reheat rated @ 5 psig Steam, EAT = 72 F DB BTU/H (nominal) 48,000 72,000 90,000 120,000 Condensate (lbs/hr) 50 75 94 125 Control Motorized Motorized Motorized Motorized Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) 4-10, (3.4) 4-15, (5.1) 4-15, (5.1) 4-15, (5.1) Std Control Cycling Cycling Cycling Cycling Evaporator Blower / Motor - DWDI Centrifugal - Belt Driven, Variable Pitch Pulleys Horsepower 3/4 Hp 1-1/2 Hp 2 Hp 3 Hp CFM @ ext. st. press. 1,800 @ 0.5" 3,000 @ 0.5" 3,350 @ 0.5" 4,400 @ 0.5" Drive Method Belt Driven Belt Driven Belt Driven Belt Driven Evaporator Coil - Aluminum Fin, Copper Tube Rows/Face Area (Ft2) 3/ 4.1 4/ 6.7 4/ 6.7 4/ 10.0 Compressor - Heat pump duty rated, HCFC Ozone Safe R-22 Type, (Qty.) Scroll, (2) Scroll, (2) Scroll, (2) Scroll, (2) Watt Input (per compressor) 1,603 2,182 2,973 3,867 Water Cooled Condenser Data - Based on 0% glycol solution Total Heat of Reject. 63,525 Btu/h 87,405 Btu/h 110,770 Btu/h 154,060 Btu/h GPM @ 85 F EWT 12.7 GPM 17.5 GPM 22.2 GPM 30.8 GPM Total Unit Pressure Drop (Ft. of H2O) 12.4 Ft. 17.9 Ft. 12.4 Ft. 25.7 Ft. Type Coaxial Coaxial Coaxial Coaxial Head Pressure Control Standard Control - 2-way, 150 psig Water Regulating Valve, (factory installed) Optional Control - Refer to the Optional Guide Specifications Section for High Pressure and 3-way Valve Options! Connection Sizes - Copper Condensate Drain, (w/ In-Pan Pump) 3/4" FPT, (1/2"OD) 3/4" FPT, (1/2"OD) 3/4" FPT, (1/2"OD) 3/4" FPT, (1/2"OD) Humidifier Inlet 1/4" OD 1/4" OD 1/4" OD 1/4" OD Source Water Inlet/Outlet 1-1/8" OD 1-1/8" OD 1-3/8" OD 1-3/8" OD Filters - 1" deep throwaway Nominal Size (in.), (Qty.) 16x20, (2) 20x20, (2) 20x20, (2) 24x24, (2) Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Weight 440 lbs 470 lbs 550 lbs 625 lbs Performance Data - Water Cooled (4 to 10 Ton Systems) 4-8

Performance Data - Glycol Cooled (1 to 5 Ton Systems) Glycol Cooled - 1 to 5 Ton "OHS" OHS Model ( )-012-G ( )-018-G ( )-024-G ( )-032-G ( )-040-G ( )-048-G ( )-060-G NET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings) 80 FDB/67 FWB, 50% RH 75 FDB/62.5 FWB, 50% RH 72 FDB/60 FWB, 50% RH Total 13,390 18,960 25,090 32,000 34,910 57,150 62,670 Sensible 10,435 15,060 19,160 23,085 27,500 46,565 51,120 Total 12,200 17,541 22,975 28,175 31,855 52,325 57,335 Sensible 10,450 15,194 18,710 23,700 26,975 45,920 50,410 Total 11,510 16,720 21,900 27,800 30,540 49,770 54,525 Sensible 10,210 14,880 18,275 22,045 26,455 44,970 49,370 80 FDB/65 FWB, 45% RH Total 12,900 18,375 23,990 30,580 33,840 54,920 60,120 Sensible 11,650 16,800 20,535 24,540 30,475 51,075 56,140 75 FDB/61 FWB, 45% RH Total 11,780 17,035 22,430 28,175 31,290 50,785 55,550 Sensible 11,171 16,200 20,195 23,700 29,270 49,080 53,900 72 FDB/58.5 FWB, 45% RH Total 11,120 16,235 21,355 27,065 29,770 48,360 52,680 Sensible 10,875 15,855 19,760 23,375 28,610 47,710 51,930 Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V 17,135 (5.0) 17,135 (5.0) 17,135 (5.0) 17,425 (5.1) 17,955 (5.3) 37,350 (10.9) 38,900 (11.4) @ 230V 18,840 (5.5) 18,840 (5.5) 18,840 (5.5) 19,130 (5.6) 19,660 (5.8) 43,140 (12.6) 44,690 (13.1) @ 460V 17,355 (5.1) 17,355 (5.1) 17,355 (5.1) 17,645 (5.2) 18,175 (5.3) 37,350 (10.9) 38,900 (11.4) @ 277/480V 18,065 (5.3) 18,065 (5.3) 18,065 (5.3) 18,355 (5.4) 18,885 (5.5) 38,835 (11.4) 40,385 (11.8) HOT GAS REHEAT BTU/H 11,290 16,845 20,895 25,295 30,555 48,220 52,930 HOT WATER REHEAT / HEAT - Reheat rated @ 180 F Entering Water Temperature, EAT = 72 F DB Air Technology Systems, I BTU/H 20,690 32,420 34,880 50,360 55,320 97,140 111,220 GPM 1 2 2 3 3 4 5 Pressure Drop, ft. wg 0.1 0.3 0.3 0.3 0.3 0.4 0.6 Control Motorized Motorized Motorized Motorized Motorized Motorized Motorized STEAM REHEAT / HEAT - nominally Reheat rated @ 5 psig Steam, EAT = 72 F DB BTU/H (nominal) 12,000 18,000 24,000 32,000 40,000 48,000 60,000 Condensate (lb/hr) 13 19 25 34 42 50 63 Control Motorized Motorized Motorized Motorized Motorized Motorized Motorized Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) 2-5, (1.7) 2-5, (1.7) 2-5, (1.7) 2-5, (1.7) 2-5, (1.7) 4-10, (3.4) 4-10, (3.4) Std Control Cycling Cycling Cycling Cycling Cycling Cycling Cycling Evaporator Blower / Motor - DWDI Centrifugal Horsepower 1/4 Hp 1/4 Hp 1/4 Hp 1/3 Hp 1/2 Hp 1 Hp 1-1/2 Hp CFM @ ext. st. press. 500 @ 0.3" 750 @ 0.3" 900 @ 0.3" 1,000 @ 0.3" 1,415 @ 0.3" 2,200 @ 0.5" 2,500 @ 0.5" Std. Drive Method Direct Driven Direct Driven Direct Driven Direct Driven Direct Driven Belt Driven Belt Driven Opt. Drive Method Belt-Driven Belt-Driven Belt-Driven Belt-Driven Belt-Driven N/A N/A Evaporator Coil - Aluminum Fin, Copper Tube Rows/Face Area (Ft2) 3/ 2.1 3/ 2.1 3/ 2.1 3/ 2.8 3/ 2.8 4/ 5.0 4/ 5.0 Compressor - Heat pump duty rated, HCFC Ozone Safe R-22 Type, (Qty.) Recip., (1) Scroll, (1) Scroll, (1) Scroll, (1) Scroll, (1) Scroll, (1) Scroll, (1) Watts Input 1,442 1,729 2,227 2,882 3,027 4,699 5,290 Glycol Condenser Data - Based on 40% ethylene glycol solution Tot. Heat of Reject. 17,270 Btu/h 23,990 Btu/h 31,305 Btu/h 40,340 Btu/h 43,625 Btu/h 68,360 Btu/h 75,390 Btu/h GPM @ 110 F EGT 3.8 GPM 5.3 GPM 6.9 GPM 8.9 GPM 9.7 GPM 15.1 GPM 16.7 GPM Total Unit PD (Ft. of H2O) 10.1 Ft. 7.0 Ft. 11.8 Ft. 12.8 Ft. 15.2 Ft. 18.0 Ft. 24.5 Ft. Type Coaxial Coaxial Coaxial Coaxial Coaxial Coaxial Coaxial Head Pressure Control Standard Control - 2-way, 150 psig Glycol Regulating Valve, (factory installed) Optional Control - Refer to the Optional Guide Specifications Section for High Pressure and 3-way Valve Options! Connection Sizes - Copper Condensate Drain 7/8" OD 7/8" OD 7/8" OD 7/8" OD 7/8" OD 3/4" FPT 3/4" FPT Humidifier Inlet 1/4" OD 1/4" OD 1/4" OD 1/4" OD 1/4" OD 1/4" OD 1/4" OD Source Glycol In/Out 5/8" OD 7/8" OD 7/8" OD 7/8" OD 7/8" OD 1-1/8" OD 1-1/8" OD Filters - 1" deep throwaway Nom. Size (in.), (Qty.) 20x20, (1) 20x20, (1) 20x20, (1) 20x20, (1) 20x20, (1) 20x16, (2) 20x16, (2) Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Weight 180 lbs 200 lbs 210 lbs 245 lbs 260 lbs 395 lbs 405 lbs 4-9

Glycol Cooled - 4 to 10 Ton "OHS" (Dual) OHS Model OHS-048-DG OHS-072-DG OHS-084-DG OHS-120-DG NET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings) 80 FDB/67 FWB, 50% RH Total 51,260 70,230 87,445 123,970 Sensible 39,730 61,010 69,465 95,280 75 FDB/62.5 FWB, 50% RH Total 46,840 64,090 79,565 113,045 Sensible 39,230 60,180 69,420 93,920 72 FDB/60 FWB, 50% RH Total 44,600 60,990 75,580 107,490 Sensible 38,400 58,520 68,115 91,925 80 FDB/65 FWB, 45% RH Total 49,150 67,340 83,055 118,680 Sensible 43,340 65,360 77,390 104,065 75 FDB/61 FWB, 45% RH Total 45,500 62,635 76,640 109,590 Sensible 41,840 61,750 73,350 100,420 72 FDB/58.5 FWB, 45% RH Total 43,320 59,880 73,150 104,185 Sensible 41,000 59,635 71,130 98,400 Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V/460V 36,810 (10.9) 38,900 (11.4) 40,510 (11.9) 43,580 (12.8) @ 230V 42,600 (12.5) 44,690 (13.1) 46,300 (13.6) 49,370 (14.5) @ 480V 38,295 (11.2) 40,385 (11.8) 41,995 (12.3) 45,065 (13.2) HOT GAS REHEAT BTU/H 20,595 31,595 36,445 49,310 HOT WATER REHEAT / HEAT - Reheat rated @ 180 F Entering Water Temperature, EAT = 72 F DB BTU/H 50,360 97,880 99,830 130,500 GPM 3 3 3 10 Pressure Drop, ft. wg 0.3 0.3 0.3 2.2 Control Motorized Motorized Motorized Motorized STEAM REHEAT / HEAT - nominally Reheat rated @ 5 psig Steam, EAT = 72 F DB BTU/H (nominal) 48,000 72,000 90,000 120,000 Condensate (lbs/hr) 50 75 94 125 Control Motorized Motorized Motorized Motorized Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) 4-10, (3.4) 4-15, (5.1) 4-15, (5.1) 4-15, (5.1) Std Control Cycling Cycling Cycling Cycling Evaporator Blower / Motor - DWDI Centrifugal - Belt Driven, Variable Pitch Pulleys Horsepower 3/4 Hp 1-1/2 Hp 2 Hp 3 Hp CFM @ ext. st. press. 1,800 @ 0.5" 3,000 @ 0.5" 3,350 @ 0.5" 4,400 @ 0.5" Drive Method Belt Driven Belt Driven Belt Driven Belt Driven Evaporator Coil - Aluminum Fin, Copper Tube Rows/Face Area (Ft2) 3/ 4.1 4/ 6.7 4/ 6.7 4/ 10.0 Compressor - Heat pump duty rated, HCFC Ozone Safe R-22 Type, (Qty.) Scroll, (2) Scroll, (2) Scroll, (2) Scroll, (2) Watt Input (per compressor) 2,188 2,973 4,103 5,290 Glycol Condenser Data - Based on 40% ethylene glycol solution Total Heat of Rejection 61,775 Btu/h 84,385 Btu/h 107,570 Btu/h 149,155 Btu/h GPM @ 110 F EGT 13.7 GPM 18.7 GPM 23.8 GPM 33.0 GPM Total Unit Pressure Drop (Ft. of H2O) 13.6 Ft. 20.0 Ft. 13.9 Ft. 28.1 Ft. Type Coaxial Coaxial Coaxial Coaxial Head Pressure Control Standard Control - 2-way, 150 psig Glycol Regulating Valves, (factory installed) Optional Control - Refer to the Optional Guide Specifications Section for High Pressure and 3-way Valve Options! Connection Sizes - Copper Condensate Drain, (w/ In-Pan Pump) 3/4" FPT, (1/2"OD) 3/4" FPT, (1/2"OD) 3/4" FPT, (1/2"OD) 3/4" FPT, (1/2"OD) Humidifier Inlet 1/4" OD 1/4" OD 1/4" OD 1/4" OD Source Glycol Inlet/Outlet 1-1/8" OD 1-1/8" OD 1-3/8" OD 1-3/8" OD Filters - 1" deep throwaway Nominal Size (in.), (Qty.) 16x20, (2) 20x20, (2) 20x20, (2) 24x24, (2) Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Weight 440 lbs 470 lbs 550 lbs 625 lbs Performance Data - Glycol Cooled (4 to 10 Ton Systems) 4-10

Performance Data - Chilled Water (1-3 ton) Systems Chilled Water - 1 to 3 Tons "OHS" OHS Model OHS-012-C OHS-018-C OHS-024-C OHS-032-C OHS-040-C COOLING CAPACITY - BTU/H @ 45 F EWT, 0% Glycol Solution (@ std CFM & e.s.p. ratings) 80 FDB/67 FWB, 50% RH High Flow Total 22,970 31,090 35,410 40,800 51,990 (8 F Tw) Sens. 15,340 21,440 24,820 28,730 37,670 GPM / (pd. Ft.) 5.8 / (19.6) 7.8 / (34.0) 8.8 / (43.1) 10.2 / (23.3) 13.0 / (36.8) Med. Flow Total 21,200 29,050 33,090 38,030 48,680 (10 F Tw) Sens. 14,560 20,520 23,770 27,430 36,100 GPM / (pd. Ft.) 4.3 / (11.2) 5.8 / (19.8) 6.6 / (25.1) 7.6 / (13.6) 9.7 / (21.5) Low Flow Total 19,390 26,830 30,910 34,950 45,440 (12 F Tw) Sens. 13,760 19,530 22,770 25,990 34,520 GPM / (pd. Ft.) 3.3 / (6.8) 4.5 / (12.2) 5.2 / (15.8) 5.8 / (8.3) 7.6 / (13.4) 75 FDB/62.5 FWB, 50% RH High Flow Total 16,460 22,840 26,110 30,170 38,890 (8 F Tw) Sens. 13,000 18,510 21,500 24,720 32,720 GPM / (pd. Ft.) 4.2 / (10.7) 5.7 / (19.4) 6.5 / (24.6) 7.6 / (13.4) 9.7 / (21.5) Med. Flow Total 15,110 21,080 24,380 27,720 36,190 (10 F Tw) Sens. 12,340 17,610 20,590 23,420 31,210 GPM / (pd. Ft.) 3.1 / (6.0) 4.2 / (11.1) 4.9 / (14.5) 5.6 / (7.6) 7.3 / (12.5) Low Flow Total 13,840 19,420 22,490 25,470 33,310 (12 F Tw) Sens. 11,690 16,700 19,510 22,170 29,510 GPM / (pd. Ft.) 2.3 / (3.7) 3.3 / (6.8) 3.8 / (8.9) 4.3 / (4.7) 5.6 / (7.6) 72 FDB/60 FWB, 50% RH High Flow Total 13,510 18,810 21,750 24,930 32,490 (8 F Tw) Sens. 11,700 16,680 19,500 22,240 29,600 GPM / (pd. Ft.) 3.4 / (7.5) 4.7 / (13.6) 5.5 / (17.8) 6.3 / (9.5) 8.1 / (15.4) Med. Flow Total 12,390 17,240 19,910 22,830 29,590 Air Technology Systems, I (10 F Tw) Sens. 11,080 15,740 18,360 20,970 27,750 GPM / (pd. Ft.) 2.5 / (4.2) 3.5 / (7.7) 4.0 / (10.0) 4.6 / (5.4) 6.0 / (8.6) Low Flow Total 11,120 15,380 17,680 20,240 25,970 (12 F Tw) Sens. 10,300 14,520 16,850 19,280 25,270 GPM / (pd. Ft.) 1.9 / (2.2) 2.6 / (4.5) 3.0 / (5.7) 3.4 / (3.1) 4.4 / (4.9) 80 FDB/65 FWB, 45% RH High Flow Total 20,300 27,780 31,800 36,940 47,370 (8 F Tw) Sens. 15,640 22,090 25,710 29,660 39,180 GPM / (pd. Ft.) 5.1 / (15.7) 6.9 / (27.5) 8.0 / (35.4) 9.2 / (19.5) 11.8 / (30.8) Med. Flow Total 18,880 26,180 30,070 34,620 44,850 (10 F Tw) Sens. 14,970 21,310 24,830 28,480 37,830 GPM / (pd. Ft.) 3.8 / (9.1) 5.2 / (16.3) 6.0 / (21.1) 6.9 / (11.5) 9.0 / (18.5) Low Flow Total 17,570 24,520 28,250 32,270 42,110 (12 F Tw) Sens. 14,340 20,460 23,870 27,250 36,300 GPM / (pd. Ft.) 2.9 / (5.7) 4.1 / (10.4) 4.7 / (13.4) 5.4 / (7.2) 7.0 / (11.7) 75 FDB/61 FWB, 45% RH High Flow Total 15,230 21,220 24,400 28,210 36,630 (8 F Tw) Sens. 13,420 19,160 22,330 25,550 33,970 GPM / (pd. Ft.) 3.8 / (9.3) 5.4 / (17.0) 6.1 / (21.9) 7.0 / (11.8) 9.2 / (19.3) Med. Flow Total 14,210 19,750 22,720 26,220 33,910 (10 F Tw) Sens. 12,850 18,270 21,260 24,340 32,200 GPM / (pd. Ft.) 2.9 / (5.4) 4.0 / (9.9) 4.6 / (12.7) 5.3 / (6.9) 6.8 / (11.0) Low Flow Total 13,040 17,980 20,610 23,830 27,460 (12 F Tw) Sens. 12,130 17,110 19,850 22,790 27,460 GPM / (pd. Ft.) 2.2 / (3.2) 3.0 / (5.9) 3.5 / (7.6) 4.0 / (4.2) 4.6 / (5.4) 72 FDB/58.5 FWB, 45% RH High Flow Total 12,650 17,360 19,380 23,310 28,360 (8 F Tw) Sens. 12,140 17,120 19,380 22,900 28,360 GPM / (pd. Ft.) 3.2 / (6.6) 4.4 / (11.8) 4.9 / (14.4) 5.9 / (8.5) 7.1 / (12.1) Med. Flow Total 10,780 15,310 17,820 19,440 25,700 (10 F Tw) Sens. 10,780 15,310 17,820 19,440 25,700 GPM / (pd. Ft.) 2.2 / (3.1) 3.1 / (6.2) 3.6 / (8.1) 3.9 / (4.0) 5.2 / (6.7) Low Flow Total 9,740 13,810 16,080 17,240 22,870 (12 F Tw) Sens. 9,740 13,810 16,080 17,240 22,870 GPM / (pd. Ft.) 1.7 / (1.6) 2.3 / (3.7) 2.7 / (4.8) 2.9 / (2.1) 3.9 / (3.9) 4-11

Chilled Water - 1 to 3 Tons "OHS" OHS Model OHS-012-C OHS-018-C OHS-024-C OHS-032-C OHS-040-C Chilled Water Control Valve - Sized for Medium Flow @ 75 FDB/62.5 FWB EAT Conditions 2-way (standard) - Spring Actuated (Open/Close) Size / (Cv) 1/2" / (3.5 Cv) 3/4" / (3.5 Cv) 3/4" / (3.7 Cv) 3/4" / (3.7 Cv) 3/4" / (3.7 Cv) Valve Pressure Rating 300 psig 300 psig 300 psig 300 psig 300 psig Total Unit Pressure Drop 8.0 Ft. 14.6 Ft. 19.4 Ft. 14.2 Ft. 22.6 Ft. 3-way (optional) - Spring Actuated (Open/Close) Size / (Cv) 1/2" / (5.0 Cv) 3/4" / (5.0 Cv) 3/4" / (5.0 Cv) 3/4" / (5.0 Cv) 3/4" / (5.0 Cv) Valve Pressure Rating 300 psig 300 psig 300 psig 300 psig 300 psig Total Unit Pressure Drop 7.1 Ft. 12.9 Ft. 17.0 Ft. 11.2 Ft. 17.5 Ft. Chilled Water Coil - Aluminum Fin, Copper Tube Rows/Face Area (Ft2) 4 / 2.1 4 / 2.1 4 / 2.1 4 / 2.8 4 / 2.8 Evaporator Blower / Motor - DWDI Centrifugal Horsepower 1/4 Hp 1/4 Hp 1/4 Hp 1/3 Hp 1/2 Hp CFM @ ext. st. press. 500 @ 0.3" 750 @ 0.3" 900 @ 0.3" 1,000 @ 0.3" 1,415 @ 0.3" Std. Drive Method Direct Driven Direct Driven Direct Driven Direct Driven Direct Driven Opt. Drive Method Belt-Driven Belt-Driven Belt-Driven Belt-Driven Belt-Driven Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V 17,135 (5.0) 17,135 (5.0) 17,135 (5.0) 17,425 (5.1) 17,955 (5.3) @ 230V 18,840 (5.5) 18,840 (5.5) 18,840 (5.5) 19,130 (5.6) 19,660 (5.8) @ 460V 17,355 (5.1) 17,355 (5.1) 17,355 (5.1) 17,645 (5.2) 18,175 (5.3) @ 277/480V 18,065 (5.3) 18,065 (5.3) 18,065 (5.3) 18,355 (5.4) 18,885 (5.5) HOT WATER REHEAT / HEAT - Reheat rated @ 180 F Entering Water Temperature, EAT = 72 F DB BTU/H 20,690 32,420 34,880 50,360 55,320 GPM 1 2 2 3 3 Pressure Drop, ft. wg 0.1 0.3 0.3 0.3 0.3 Control Motorized Motorized Motorized Motorized Motorized STEAM REHEAT / HEAT - nominally Reheat rated @ 5 psig Steam, EAT = 72 F DB BTU/H (nominal) 12,000 18,000 24,000 32,000 40,000 Condensate (lb/hr) 13 19 25 34 42 Control Motorized Motorized Motorized Motorized Motorized Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) 2-5, (1.7) 2-5, (1.7) 2-5, (1.7) 2-5, (1.7) 2-5, (1.7) Std Control Cycling Cycling Cycling Cycling Cycling Filters - 1" deep throwaway Nom. Size (in.), (Qty.) 20x20, (1) 20x20, (1) 20x20, (1) 20x20, (1) 20x20, (1) Connection Sizes - Copper Condensate Drain 7/8" OD 7/8" OD 7/8" OD 7/8" OD 7/8" OD Humidifier Inlet 1/4" OD 1/4" OD 1/4" OD 1/4" OD 1/4" OD Chilled Water In/Out 5/8" OD 7/8" OD 7/8" OD 7/8" OD 7/8" OD Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Wt. 120 lbs 125 lbs 125 lbs 160 lbs 170 lbs Performance Data - Chilled Water (1-3 ton) Systems 4-12

Performance Data - Chilled Water (4-10 ton) Systems Chilled Water - 4 to 10 Ton "OHS" OHS Model OHS-048-C OHS-060-C OHS-072-C OHS-084-C OHS-120-C COOLING CAPACITY - BTU/H @ 45 F EWT, 0% Glycol Solution (@ std CFM & e.s.p. ratings) 80 FDB/67 FWB, 50% RH High Flow Total 83,770 91,130 134,100 144,440 166,850 (8 F Tw) Sensible 59,280 65,250 90,760 98,710 117,880 GPM / (pd. Ft.) 20.9 / (18.6) 22.8 / (21.9) 33.5 / (46.3) 36.1 / (53.2) 41.8 / (18.6) Med. Flow Total 77,350 84,830 125,560 135,080 154,030 (10 F Tw) Sensible 56,410 62,390 87,010 94,600 112,150 GPM / (pd. Ft.) 15.5 / (10.7) 17.1 / (12.7) 25.2 / (27.5) 27.1 / (31.5) 31.0 / (10.7) Low Flow Total 69,980 77,170 117,370 126,560 139,290 (12 F Tw) Sensible 53,070 58,870 83,420 90,820 105,460 GPM / (pd. Ft.) 11.7 / (6.4) 13.0 / (7.7) 19.6 / (17.4) 21.2 / (20.1) 23.4 / (6.4) 75 FDB/62.5 FWB, 50% RH High Flow Total 61,310 67,460 99,080 106,720 121,940 (8 F Tw) Sensible 51,210 56,760 78,510 85,490 101,740 GPM / (pd. Ft.) 15.4 / (10.6) 17.0 / (12.7) 24.8 / (26.9) 26.8 / (30.8) 30.8 / (10.6) Med. Flow Total 55,160 61,100 93,260 100,560 109,650 (10 F Tw) Sensible 47,960 53,340 75,670 82,420 95,250 GPM / (pd. Ft.) 11.1 / (5.8) 12.4 / (7.1) 18.8 / (16.1) 20.3 / (18.5) 22.2 / (5.8) Low Flow Total 49,160 54,360 87,270 94,830 97,640 (12 F Tw) Sensible 44,430 49,290 72,610 79,360 88,190 GPM / (pd. Ft.) 8.3 / (3.4) 9.2 / (4.1) 14.6 / (10.2) 15.9 / (11.9) 16.6 / (3.4) 72 FDB/60 FWB, 50% RH High Flow Total 50,110 55,070 83,050 89,560 99,540 (8 F Tw) Sensible 45,920 50,810 71,570 77,990 91,150 GPM / (pd. Ft.) 12.6 / (7.4) 13.9 / (8.8) 20.9 / (19.6) 22.5 / (22.6) 25.2 / (7.4) Med. Flow Total 43,320 47,530 78,610 84,870 85,960 Air Technology Systems, I (10 F Tw) Sensible 41,670 46,000 69,090 75,240 82,660 GPM / (pd. Ft.) 8.7 / (3.7) 9.6 / (4.5) 15.8 / (11.9) 17.2 / (13.7) 17.4 / (3.7) Low Flow Total 34,130 37,920 71,630 77,770 67,580 (12 F Tw) Sensible 34,130 37,920 64,930 70,840 67,580 GPM / (pd. Ft.) 5.8 / (1.6) 6.4 / (2.1) 12.0 / (7.2) 13.1 / (8.4) 11.6 / (1.6) 80 FDB/65 FWB, 45% RH High Flow Total 75,570 82,490 120,390 130,020 150,470 (8 F Tw) Sens. 61,670 68,110 93,640 102,180 122,660 GPM / (pd. Ft.) 18.9 / (15.5) 20.7 / (18.3) 30.2 / (38.4) 32.6 / (44.1) 37.8 / (15.5) Med. Flow Total 70,060 77,190 114,230 123,240 139,440 (10 F Tw) Sens. 58,910 65,370 90,740 98,940 117,150 GPM / (pd. Ft.) 14.1 / (8.9) 15.5 / (10.7) 23.0 / (23.3) 24.8 / (26.7) 28.2 / (8.9) Low Flow Total 64,380 76,080 108,620 117,210 128,090 (12 F Tw) Sens. 55,910 62,060 88,020 95,950 111,140 GPM / (pd. Ft.) 10.8 / (5.5) 11.9 / (6.6) 18.2 / (15.1) 19.6 / (17.4) 21.6 / (5.5) 75 FDB/61 FWB, 45% RH High Flow Total 57,240 62,820 93,130 100,510 113,800 (8 F Tw) Sens. 53,140 58,810 81,850 89,260 105,610 GPM / (pd. Ft.) 14.4 / (9.4) 15.9 / (11.2) 23.4 / (24.1) 25.3 / (27.8) 28.8 / (9.4) Med. Flow Total 50,840 55,860 89,310 96,130 101,000 (10 F Tw) Sens. 49,150 54,370 79,650 86,670 97,630 GPM / (pd. Ft.) 10.2 / (5.0) 11.3 / (6.0) 18.0 / (14.9) 19.4 / (17.2) 20.4 / (5.0) Low Flow Total 42,260 46,900 84,180 91,060 83,850 (12 F Tw) Sens. 42,260 46,900 76,530 83,390 83,850 GPM / (pd. Ft.) 7.1 / (2.6) 7.9 / (3.1) 14.1 / (9.6) 15.3 / (11.1) 14.2 / (2.6) 72 FDB/58.5 FWB, 45% RH High Flow Total 44,900 49,650 79,680 85,280 89,130 (8 F Tw) Sens. 44,900 49,650 75,350 81,670 89,130 GPM / (pd. Ft.) 11.3 / (6.0) 12.5 / (7.3) 20.0 / (18.2) 21.4 / (20.6) 22.6 / (6.0) Med. Flow Total 39,900 44,230 66,750 72,960 79,120 (10 F Tw) Sens. 39,900 44,230 66,750 72,960 79,120 GPM / (pd. Ft.) 8.1 / (3.2) 9.0 / (3.9) 13.4 / (8.8) 14.8 / (10.5) 16.2 / (3.2) Low Flow Total 34,000 37,780 60,390 65,910 67,330 (12 F Tw) Sens. 34,000 37,780 60,390 65,910 67,330 GPM / (pd. Ft.) 5.7 / (1.6) 6.4 / (2.0) 10.2 / (5.3) 11.1 / (6.3) 11.4 / (1.6) 4-13

Chilled Water - 4 to 10 Ton "OHS" OHS Model OHS-048-C OHS-060-C OHS-072-C OHS-084-C OHS-120-C Chilled Water Control Valve - Sized for Medium Flow @ 75 FDB/62.5 FWB EAT Conditions 2-way (standard) - Spring Actuated (Open/Close) Size / (Cv) 1" / (8.0 Cv) 1" / (8.0 Cv) 1" / (14.0 Cv) 1" / (14.0 Cv) 1" / (14.0 Cv) Valve Pressure Rating 300 psig 300 psig 400 psig 400 psig 400 psig Total Unit Pressure Drop 10.4 Ft. 12.7 Ft. 20.7 Ft. 24.1 Ft. 12.5 Ft. 3-way (optional) - Spring Actuated (Open/Close) Size / (Cv) 1" / (7.0 Cv) 1" / (7.0 Cv) 1" / (14.0 Cv) 1" / (14.0 Cv) 1" / (14.0 Cv) Valve Pressure Rating 300 psig 300 psig 400 psig 400 psig 400 psig Total Unit Pressure Drop 11.8 Ft. 14.4 Ft. 20.7 Ft. 24.1 Ft. 12.5 Ft. Chilled Water Coil - Aluminum Fin, Copper Tube Rows/Face Area (Ft2) 4/ 5.0 4/ 5.0 4/ 6.7 4/ 6.7 4/ 10.0 Evaporator Blower / Motor - DWDI Centrifugal - Belt Driven, Variable Pitch Pulleys Horsepower 1 Hp 1-1/2 Hp 1-1/2 Hp 2 Hp 3 Hp CFM @ ext. st. press. 2,200 @ 0.5" 2,500 @ 0.5" 3,000 @ 0.5" 3,350 @ 0.5" 4,400 @ 0.5" Drive Method Belt Driven Belt Driven Belt Driven Belt Driven Belt Driven Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V/460V 37,350 (10.9) 38,900 (11.4) 38,900 (11.4) 40,510 (11.9) 43,580 (12.8) @ 230V 43,140 (12.6) 44,690 (13.1) 44,690 (13.1) 46,300 (13.6) 49,370 (14.5) @ 480V 38,835 (11.4) 40,385 (11.8) 40,385 (11.8) 41,995 (12.3) 45,065 (13.2) HOT WATER REHEAT / HEAT - Reheat rated @ 180 F Entering Water Temperature, EAT = 72 F DB BTU/H 97,140 111,220 97,880 99,830 130,500 GPM / Press. Drop (ft.wg) 4.0 / (0.4) 5.0 / (0.6) 3.0 / (0.3) 3.0 / (0.3) 10.0 / (2.2) Control Motorized Motorized Motorized Motorized Motorized STEAM REHEAT / HEAT - nominally Reheat rated @ 5 psig Steam, EAT = 72 F DB BTU/H (nominal) 48,000 60,000 72,000 90,000 120,000 Condensate (lb/hr) 50 63 75 94 125 Control Motorized Motorized Motorized Motorized Motorized Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) 4-10, (3.4) 4-10, (3.4) 4-15, (5.1) 4-15, (5.1) 4-15, (5.1) Std Control Cycling Cycling Cycling Cycling Cycling Filters - 1" deep throwaway Nominal Size (in.), (Qty) 20x16, (2) 20x16, (2) 20x20, (2) 20x20, (2) 24x24, (2) Connection Sizes - Copper, (Water In/Out connections are sized for flow rates at 75 FDB/62.5 FWB EAT conditions.) Cond. Drain, (w/ In-Pan Pump) 3/4" FPT, (1/2"OD) 3/4" FPT, (1/2"OD) 3/4" FPT, (1/2"OD) 3/4" FPT, (1/2"OD) 3/4" FPT, (1/2"OD) Humidifier Inlet 1/4" OD 1/4" OD 1/4" OD 1/4" OD 1/4" OD Chilled Water In/Out 1-1/8" OD 1-1/8" OD 1-1/8" OD 1-1/8" OD 1-3/8" OD Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Weight 280 lbs 290 lbs 365 lbs 415 lbs 495 lbs Performance Data - Chilled Water (4-10 ton) Systems 4-14

Chilled Water - 42 F Entering Water Temperature Cooling Capacities (BTU/H) for 42 F Chilled Water Entering the Cooling Coil 80 FDB/67 FWB OHS-012C OHS-018C OHS-024C OHS-032C OHS-040C OHS-048C OHS-060C OHS-072C OHS-084C OHS-120C High Flow Total 26,260 35,660 40,630 46,540 59,330 96,270 104,840 153,410 165,430 191,860 (8 F Tw) Sensible 16,820 23,440 27,080 31,360 40,970 64,660 71,110 99,310 107,930 128,640 GPM/(Ft.) 6.6/(25.0) 8.9/(43.9) 10.1/(55.8) 11.6/(29.8) 14.8/(47.2) 24.0/(24.2) 26.2/(28.4) 38.3/(59.6) 41.3/(68.6) 42.0/(24.2) Med Flow Total 24,550 33,500 38,180 43,710 55,750 89,650 97,830 144,620 155,710 178,610 (10 F Tw) Sensible 16,030 22,450 25,960 30,010 39,270 61,650 67,920 95,310 103,520 122,630 GPM/(Ft.) 4.9/(14.8) 6.7/(25.8) 7.6/(32.9) 8.7/(17.6) 11.1/(27.7) 17.9/(14.1) 19.6/(16.6) 28.9/(35.7) 31.2/(41.0) 35.8/(14.1) Low Flow Total 22,660 31,170 35,790 40,430 52,300 81,320 59,560 135,610 146,250 161,960 (12 F Tw) Sensible 15,180 21,390 24,860 28,450 37,600 57,910 64,180 91,260 99,260 115,150 GPM/(Ft.) 3.8/(9.1) 5.2/(16.1) 6.0/(20.8) 6.7/(10.9) 8.7/(17.6) 13.6/(8.4) 15.0/(10.1) 22.6/(22.7) 24.5/(26.3) 27.2/(8.4) 75 FDB/62.5 FWB OHS-012C OHS-018C OHS-024C OHS-032C OHS-040C OHS-048C OHS-060C OHS-072C OHS-084C OHS-120C High Flow Total 19,450 26,760 30,590 35,200 45,190 72,100 79,070 115,660 124,650 143,530 (8 F Tw) Sensible 14,380 20,310 23,570 27,140 35,750 56,180 62,130 86,120 93,710 111,680 GPM/(Ft.) 4.9/(14.5) 6.7/(25.9) 7.6/(33.2) 8.8/(17.9) 11.3/(28.4) 18.1/(14.3) 19.9/(17.1) 28.9/(35.8) 31.2/(41.1) 36.2/(14.3) Air Technology Systems, I Med Flow Total 17,880 24,830 28,560 32,460 42,280 65,300 72,010 108,750 117,090 129,920 (10 F Tw) Sensible 13,620 19,360 22,540 25,730 34,220 52,790 58,560 82,780 90,030 104,910 GPM/(Ft.) 3.6/(8.2) 5.0/(15.1) 5.7/(19.3) 6.5/(10.2) 8.5/(16.7) 13.1/(7.9) 14.5/(9.6) 21.8/(21.4) 23.5/(24.5) 26.2/(7.9) Low Flow Total 16,370 22,860 26,690 29,890 39,060 58,870 65,240 101,470 110,240 117,060 (12 F Tw) Sensible 12,880 18,360 21,440 24,390 32,470 49,420 54,950 79,230 86,610 98,170 GPM/(Ft.) 2.8/(5.0) 3.8/(9.2) 4.4/(11.9) 5.0/(6.3) 6.5/(10.2) 9.9/(4.7) 11.0/(5.7) 17.0/(13.6) 18.5/(15.8) 19.8/(4.7) 72 FDB/60 FWB OHS-012C OHS-018C OHS-024C OHS-032C OHS-040C OHS-048C OHS-060C OHS-072C OHS-084C OHS-120C High Flow Total 16,130 22,430 25,760 29,550 38,380 59,940 65,890 97,760 105,340 119,190 (8 F Tw) Sensible 12,960 18,450 21,470 24,590 32,650 50,840 56,300 78,590 85,540 100,990 GPM/(Ft.) 4.1/(10.4) 5.7/(19.0) 6.4/(24.0) 7.4/(13.0) 9.6/(21.0) 15.1/(10.2) 16.6/(12.3) 24.5/(26.4) 26.4/(30.3) 30.2/(10.2) Med Flow Total 14,790 20,650 23,870 27,110 35,430 53,890 59,500 91,990 99,230 107,110 (10 F Tw) Sensible 12,270 17,500 20,430 23,230 30,950 47,500 52,690 75,630 82,350 94,310 GPM/(Ft.) 3.0/(5.9) 4.2/(10.8) 4.8/(14.0) 5.4/(7.4) 7.1/(12.1) 10.8/(5.6) 12.0/(6.8) 18.5/(15.8) 20.0/(18.2) 21.6/(5.6) Low Flow Total 13,530 18,980 21,970 24,850 32,490 47,370 52,240 84,910 92,170 94,070 (12 F Tw) Sensible 11,590 16,540 19,310 21,920 29,140 43,510 48,160 71,880 78,490 86,340 GPM/(Ft.) 2.3/(3.4) 3.2/(6.6) 3.7/(8.6) 4.2/(4.5) 5.4/(7.3) 8.0/(3.2) 8.8/(3.8) 14.2/(9.9) 15.5/(11.4) 16.0/(3.2) (Note: The above Cooling capacities @ standard CFM/e.s.p. as shown on page 4-19 & 4-21, Evaporator Blower/Motor.) 4-19 4-15

Chilled Water - 50 F Entering Water Temperature Cooling Capacities (BTU/H) for 50 F Chilled Water Entering the Cooling Coil 80 FDB/67 FWB OHS-012C OHS-018C OHS-024C OHS-032C OHS-040C OHS-048C OHS-060C OHS-072C OHS-084C OHS-120C High Flow Total 17,340 23,720 27,070 31,550 40,300 64,160 69,840 102,640 110,880 127,640 (8 F Tw) Sensible 12,970 18,360 21,350 24,670 32,580 51,150 56,420 77,640 84,770 101,610 GPM/(Ft.) 4.4/(11.6) 6.0/(20.6) 6.8/(26.0) 7.9/(14.5) 10.1/(22.7) 16.1/(11.4) 17.6/(13.4) 25.7/(28.3) 27.9/(32.7) 32.2/(11.4) Med Flow Total 15,870 22,110 25,390 29,130 36,840 58,670 64,760 96,430 103,990 116,670 (10 F Tw) Sensible 12,330 17,620 20,530 23,520 31,310 48,530 53,880 74,920 81,700 96,380 GPM/(Ft.) 3.2/(6.5) 4.5/(12.0) 5.1/(15.3) 5.8/(8.2) 7.6/(13.4) 11.8/(6.4) 13.1/(7.8) 19.4/(16.9) 21.0/(19.5) 23.6/(6.4) Low Flow Total 14,570 20,410 23,660 26,770 35,130 52,860 58,460 91,030 97,870 105,040 (12 F Tw) Sensible 11,730 16,780 19,640 22,320 29,840 45,480 50,480 72,410 78,760 90,280 GPM/(Ft.) 2.5/(4.0) 3.4/(7.4) 4.0/(9.7) 4.5/(5.1) 5.9/(8.3) 8.9/(3.8) 9.9/(4.6) 15.3/(10.9) 16.4/(12.5) 17.8/(3.8) 75 FDB/62.5 FWB OHS-012C OHS-018C OHS-024C OHS-032C OHS-040C OHS-048C OHS-060C OHS-072C OHS-084C OHS-120C High Flow Total 12,100 16,730 19,200 22,380 28,770 43,580 45,430 75,480 80,860 86,480 (8 F Tw) Sensible 10,990 15,610 18,170 20,880 27,580 42,410 45,430 67,760 73,570 84,150 GPM/(Ft.) 3.1/(6.1) 4.2/(10.9) 4.8/(14.0) 5.7/(7.8) 7.2/(12.3) 11.0/(5.6) 11.5/(6.1) 19.0/(16.3) 20.4/(18.6) 22.0/(5.6) Med Flow Total 10,900 14,880 16,960 19,860 23,400 36,050 39,970 71,720 76,250 71,430 (10 F Tw) Sensible 10,270 14,430 16,690 19,290 23,400 36,050 39,970 65,350 70,550 71,430 GPM/(Ft.) 2.2/(3.3) 3.0/(5.8) 3.4/(7.4) 4.0/(4.2) 4.8/(5.7) 7.3/(2.7) 8.2/(3.3) 14.4/(9.9) 15.4/(11.2) 14.6/(2.7) Low Flow Total 8,710 12,380 14,420 15,370 20,380 30,000 33,350 54,330 59,290 59,330 (12 F Tw) Sensible 8,710 12,380 14,420 15,370 20,380 30,000 33,350 54,330 59,290 59,330 GPM/(Ft.) 1.5/(1.3) 2.1/(2.9) 2.4/(3.9) 2.6/(1.7) 3.5/(3.1) 5.1/(1.2) 5.7/(1.6) 9.2/(4.4) 10.0/(5.1) 10.2/(1.2) 72 FDB/60 FWB OHS-012C OHS-018C OHS-024C OHS-032C OHS-040C OHS-048C OHS-060C OHS-072C OHS-084C OHS-120C High Flow Total 8,950 12,720 14,820 16,220 21,520 33,560 37,150 55,560 60,470 66,440 (8 F Tw) Sensible 8,950 12,720 14,820 16,220 21,520 33,560 37,150 55,560 60,470 66,440 GPM/(Ft.) 2.3/(3.5) 3.2/(6.6) 3.7/(8.7) 4.1/(4.3) 5.5/(7.3) 8.5/(3.5) 9.5/(4.3) 14.1/(9.5) 15.4/(11.1) 17.0/(3.5) Med Flow Total 7,930 11,260 13,120 14,070 18,640 27,890 30,910 49,330 53,790 55,100 (10 F Tw) Sensible 7,930 11,260 13,120 14,070 18,640 27,890 30,910 49,330 53,790 55,100 GPM/(Ft.) 1.6/(1.6) 2.3/(3.5) 2.7/(4.6) 2.9/(2.1) 3.8/(3.7) 5.7/(1.6) 6.4/(2.0) 10.0/(5.1) 11.0/(6.0) 11.4/(1.6) Low Flow Total 6,690 9,550 11,140 11,500 15,340 20,870 23,350 41,390 45,320 41,060 (12 F Tw) Sensible 6,690 9,550 11,140 11,500 15,340 20,870 23,350 41,390 45,320 41,060 GPM/(Ft.) 1.1/(0.7) 1.6/(1.6) 1.9/(2.3) 2.0/(0.8) 2.6/(1.7) 3.6/(0.5) 4.1/(0.7) 7.0/(2.7) 7.7/(3.2) 7.2/(0.5) (Note: The above Cooling capacities @ standard CFM/e.s.p. as shown on page 4-19 & 4-21, Evaporator Blower/Motor.) 4-16

Performance Data - Free-Cooling & Alternate Water Source Systems Free-Cooling & Alternate Water Source Free-Cooling / Alternate Water Source MODEL TYPE... page DX with Free-Cooling Self-Contained Glycol Cooled w/ FC: 1-5 Ton, models OHS-012/060-G-FC... 4-17/19 4-10 Ton, models OHS-048/120-DG-FC... 4-20/21 Self-Contained Water Cooled w/ FC: 1-5 Ton, models OHS-012/060-W-FC... 4-22/23 4-10 Ton, models OHS-048/120-DW-FC... 4-24/25 DX with Alternate Water Source Air Alternate Water Technology Source: Systems, I 1-5 Ton, models OHS-012/060-( )-AWS... 4-26 4-10 Ton, models OHS-048/120-D()-AWS... 4-27 42 F / 50 F EWT Performance Data... 4-28 Remote Liquid Chiller (by others) Remote Air Cooled Condenser Free-Cooling Alternate Water Source Flooded Head Pressure Control Valve Relief Valve Receiver Refrigerant Reclaim Port Pump (by others) Flow Switch Alternate Water Source Aqua-Stat Sight Glass HP FS T Scroll Compressor Solenoid Valve Refrigerant Drier / Strainer Alternate Water Source Cooling Coil AWS Control Valve LP Equalizer Line Expansion Valve Feeler Bulb DX - Cooling Coil 4-17

DX Glycol Cooled w/ Free-Cooling - 1 to 5 Ton "OHS" OHS Model 012-HG-FC 018-HG-FC 024-HG-FC 032-HG-FC 040-HG-FC 048-G-FC 060-G-FC NET DX COOLING CAPACITY - BTU/H, (includes standard DX w/ FC evaporator motor heat @ std CFM & e.s.p. ratings) 80 FDB/67 FWB, 50% RH Total 13,390 18,960 25,090 32,000 34,910 57,150 62,670 Sensible 10,435 15,060 19,160 23,085 27,500 46,565 51,120 75 FDB/62.5 FWB, 50% RH Total 12,200 17,541 22,975 28,175 31,855 52,325 57,335 Sensible 10,450 15,194 18,710 23,700 26,975 45,920 50,410 72 FDB/60 FWB, 50% RH Total 11,510 16,720 21,900 27,800 30,540 49,770 54,525 Sensible 10,210 14,880 18,275 22,045 26,455 44,970 49,370 80 FDB/65 FWB, 45% RH Total 12,900 18,375 23,990 30,580 33,840 54,920 60,120 Sensible 11,650 16,800 20,535 24,540 30,475 51,075 56,140 75 FDB/61 FWB, 45% RH Total 11,780 17,035 22,430 28,175 31,290 50,785 55,550 Sensible 11,171 16,200 20,195 23,700 29,270 49,080 53,900 72 FDB/58.5 FWB, 45% RH Total 11,120 16,235 21,355 27,065 29,770 48,360 52,680 Sensible 10,875 15,855 19,760 23,375 28,610 47,710 51,930 FREE-COOLING CAPACITY - BTU/H @ 45 F Entering Glycol Temperature, 40% Ethylene Glycol Solution 80 FDB/67 FWB, 50% RH Total 16,040 22,685 27,755 32,355 39,420 57,050 63,700 Sensible 12,500 17,960 21,670 25,080 32,180 48,450 54,265 75 FDB/62.5 FWB, 50% RH Total 12,880 18,190 22,170 25,910 31,670 45,395 50,560 Sensible 11,460 16,440 19,800 22,795 29,290 44,130 49,325 72 FDB/60 FWB, 50% RH Total 11,160 15,670 19,125 22,455 27,265 39,955 44,570 Sensible 10,665 15,235 18,370 21,150 27,025 39,955 44,570 80 FDB/65 FWB, 45% RH Total 15,110 21,330 25,990 30,380 37,140 53,235 59,270 Sensible 13,400 19,225 23,140 26,640 34,270 51,680 57,765 75 FDB/61 FWB, 45% RH Total 12,200 16,815 20,840 24,630 29,405 44,500 49,635 Sensible 12,000 16,815 20,630 23,820 29,405 44,500 49,635 72 FDB/58.5 FWB, 45% RH Total 10,740 15,260 18,465 21,010 26,380 39,890 44,490 Sensible 10,740 15,260 18,465 21,010 26,380 39,890 44,490 Flow Rates, Free-Cooling Coil Flow Rate 3.8 GPM 5.3 GPM 6.9 GPM 8.9 GPM 9.7 GPM 15.1 GPM 16.7 GPM Evaporator Blower / Motor, DX w/ Free-Cooling - DWDI Centrifugal - Belt Driven, Variable Pitch Pulleys Horsepower 1/4 Hp 1/3 Hp 1/2 Hp 1/2 Hp 3/4 Hp 1-1/2 Hp 2 Hp CFM @ ext. st. press. 500 @ 0.5" 750 @ 0.5" 900 @ 0.5" 1,000 @ 0.5" 1,415 @ 0.5" 2,200 @ 0.5" 2,500 @ 0.5" Drive Method Belt Driven Belt Driven Belt Driven Belt Driven Belt Driven Belt Driven Belt Driven Evaporator Coils, (Both DX & Free-Cooling Respectively) - Aluminum Fin, Copper Tube DX Coil: Rows/ Face Area (Ft2) 3/ 2.1 3/ 2.1 3/ 2.1 3/ 2.8 3/ 2.8 4/ 5.0 4/ 5.0 FC Coil: Rows/Face Area (Ft2) 4/ 2.1 4/ 2.1 4/ 2.1 4/ 2.8 4/ 2.8 4/ 5.0 4/ 5.0 Performance Data - DX Glycol Cooled w/ FC (1 to 5 Ton Systems) 4-18

Performance Data - DX Glycol Cooled w/ FC (1 to 5 Ton Systems) DX Glycol Cooled w/ Free-Cooling - 1 to 5 Ton "OHS" OHS Model 012-HG-FC 018-HG-FC 024-HG-FC 032-HG-FC 040-HG-FC 048-G-FC 060-G-FC Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V 17,135 (5.0) 17,135 (5.0) 17,135 (5.0) 17,425 (5.1) 17,955 (5.3) 37,350 (10.9) 38,900 (11.4) @ 230V 18,840 (5.5) 18,840 (5.5) 18,840 (5.5) 19,130 (5.6) 19,660 (5.8) 43,140 (12.6) 44,690 (13.1) @ 460V 17,355 (5.1) 17,355 (5.1) 17,355 (5.1) 17,645 (5.2) 18,175 (5.3) 37,350 (10.9) 38,900 (11.4) @ 277/480V 18,065 (5.3) 18,065 (5.3) 18,065 (5.3) 18,355 (5.4) 18,885 (5.5) 38,835 (11.4) 40,385 (11.8) Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) 2-5, (1.7) 2-5, (1.7) 2-5, (1.7) 2-5, (1.7) 2-5, (1.7) 4-10, (3.4) 4-10, (3.4) Std Control Cycling Cycling Cycling Cycling Cycling Cycling Cycling Compressor - Heat pump duty rated, HCFC Ozone Safe R-22 Type, (Qty.) Recip., (1) Scroll, (1) Scroll, (1) Scroll, (1) Scroll, (1) Scroll, (1) Scroll, (1) Watts Input 1,442 1,729 2,227 2,882 3,027 4,699 5,290 DX Glycol Condenser Data - Based on 40% ethylene glycol solution Tot. Heat of Reject. 17,270 Btu/h 23,990 Btu/h 31,305 Btu/h 40,340 Btu/h 43,625 Btu/h 68,360 Btu/h 75,390 Btu/h GPM @ 110 F EGT 3.8 GPM 5.3 GPM 6.9 GPM 8.9 GPM 9.7 GPM 15.1 GPM 16.7 GPM Total Unit PD (Ft. of H2O) 11.8 Ft. 21.1 Ft. 38.4 Ft. 28.1 Ft. 34.3 Ft. 20.1 Ft. 24.9 Ft. Type Coaxial Coaxial Coaxial Coaxial Coaxial Coaxial Coaxial DX-Head Pressure & Free-Cooling Coil Control Valve Combinations DX Hd Pr. Valve Type - - - - - - - - 3-way, 150 psig DX Condenser Source Regulating Valve - field installed - - - - - - - - Free-Cooling Valve - 3-way, Spring Actuated (Open/Close): Air Technology Systems, I FC Valve Size / (Cv) 1/2" / (5.0 Cv) 3/4" / (5.0 Cv) 3/4" / (5.0 Cv) 3/4" / (5.0 Cv) 3/4" / (5.0 Cv) 1" / (7.0 Cv) 1" / (7.0 Cv) Valve Pressure Rating 300 psig 300 psig 300 psig 300 psig 300 psig 300 psig 300 psig Optional Valve Combinations - Please refer to page 3-9 for Higher Pressure Rated and Modulating (0-10 Vdc) Valve Combination Options! Connection Sizes - Copper Condensate Drain 3/4" FPT 3/4" FPT 3/4" FPT 3/4" FPT 3/4" FPT 3/4" FPT 3/4" FPT Humidifier Inlet 1/4" OD 1/4" OD 1/4" OD 1/4" OD 1/4" OD 1/4" OD 1/4" OD Source Glycol In/Out 5/8" OD 7/8" OD 7/8" OD 7/8" OD 7/8" OD 1-1/8" OD 1-1/8" OD Filters - 1" deep throwaway Nom. Size (in.), (Qty.) 20x20, (1) 20x20, (1) 20x20, (1) 20x20, (1) 20x20, (1) 20x16, (2) 20x16, (2) Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Weight 245 lbs 265 lbs 275 lbs 300 lbs 310 lbs 500 lbs 510 lbs DRYCOOLER DATA - Please refer to Glycol Pump / Drycooler Engineering Manual 105 F Amb. Selections - Optional - Please refer to Glycol Pump / Drycooler Engineering Manual Glycol Pump Packages - Optional - Please refer to Glycol Pump / Drycooler Engineering Manual 4-19

DX Glycol Cooled w/ Free-Cooling - 4 to 10 Ton "OHS" (Dual) OHS Model 048-DG-FC 072-DG-FC 084-DG-FC 120-DG-FC NET DX COOLING CAPACITY - BTU/H, (includes standard DX w/ FC evaporator motor heat @ std CFM & e.s.p. ratings) 80 FDB/67 FWB, 50% RH Total 51,260 70,230 87,445 123,970 Sensible 39,730 61,010 69,465 95,280 75 FDB/62.5 FWB, 50% RH Total 46,840 64,090 79,565 113,045 Sensible 39,230 60,180 69,420 93,920 72 FDB/60 FWB, 50% RH Total 44,600 60,990 75,580 107,490 Sensible 38,400 58,520 68,115 91,925 80 FDB/65 FWB, 45% RH Total 49,150 67,340 83,055 118,680 Sensible 43,340 65,360 77,390 104,065 75 FDB/61 FWB, 45% RH Total 45,500 62,635 76,640 109,590 Sensible 41,840 61,750 73,350 100,420 72 FDB/58.5 FWB, 45% RH Total 43,320 59,880 73,150 104,185 Sensible 41,000 59,635 71,130 98,400 FREE-COOLING CAPACITY - BTU/H @ 45 F Entering Glycol Temperature, 40% Ethylene Glycol Solution 80 FDB/67 FWB, 50% RH Total 54,105 89,015 105,970 119,730 Sensible 42,715 72,360 83,255 99,390 75 FDB/62.5 FWB, 50% RH Total 43,290 72,275 85,820 95,730 Sensible 39,055 66,680 76,665 90,850 72 FDB/60 FWB, 50% RH Total 37,290 62,365 74,595 82,130 Sensible 36,180 61,770 71,425 82,130 80 FDB/65 FWB, 45% RH Total 50,780 84,960 100,770 112,260 Sensible 45,670 78,090 89,680 106,340 75 FDB/61 FWB, 45% RH Total 39,925 68,360 81,685 92,370 Sensible 39,925 68,360 81,685 92,370 72 FDB/58.5 FWB, 45% RH Total 36,260 61,260 71,495 82,820 Sensible 36,260 61,260 71,495 82,820 Flow Rates, Free-Cooling Coil Flow Rate 13.7 GPM 18.7 GPM 23.8 GPM 33.0 GPM Evaporator Blower / Motor, DX w/ Free-Cooling - DWDI Centrifugal - Belt Driven, Variable Pitch Pulleys Horsepower 1 Hp 1-1/2 Hp 2 Hp 3 Hp CFM @ ext. st. press. 1,800 @ 0.5" 3,000 @ 0.5" 3,350 @ 0.5" 4,400 @ 0.5" Drive Method Belt Driven Belt Driven Belt Driven Belt Driven Evaporator Coils, (Both DX & Free-Cooling Respectively) - Aluminum Fin, Copper Tube DX Coil: Rows/ Face Area (ft2) 4/ 4.1 ft2 4/ 6.7 ft2 4/ 6.7 ft2 4/ 10.0 ft2 FC Coil: Rows/Face Area (ft2) 4/ 4.1 ft2 4/ 6.7 ft2 4/ 6.7 ft2 4/ 10.0 ft2 Performance Data - DX Glycol Cooled w/ FC (4 to 10 Ton Dual Systems) 4-20

DX Glycol Cooled w/ Free-Cooling - 4 to 10 Ton "OHS" (Dual) Performance Data - DX Glycol Cooled w/ FC (4 to 10 Ton Dual Systems) OHS Model 048-DG-FC 072-DG-FC 084-DG-FC 120-DG-FC Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V/460V 36,810 (10.9) 38,900 (11.4) 40,510 (11.9) 43,580 (12.8) @ 230V 42,600 (12.5) 44,690 (13.1) 46,300 (13.6) 49,370 (14.5) @ 480V 38,295 (11.2) 40,385 (11.8) 41,995 (12.3) 45,065 (13.2) Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) 4-10, (3.4) 4-15, (5.1) 4-15, (5.1) 4-15, (5.1) Std Control Cycling Cycling Cycling Cycling Compressor - Heat pump duty rated, HCFC Ozone Safe R-22 Type, (Qty.) Scroll, (2) Scroll, (2) Scroll, (2) Scroll, (2) Watt Input (per compressor) 2,188 2,973 4,103 5,290 DX Glycol Condenser Data - Based on 40% ethylene glycol solution Total Heat of Rejection 61,775 Btu/h 84,385 Btu/h 107,570 Btu/h 149,155 Btu/h GPM @ 110 F EGT 13.7 GPM 18.7 GPM 23.8 GPM 33.0 GPM Total Unit Pressure Drop (Ft. of H2O) 37.8 Ft. 34.8 Ft. 41.0 Ft. 29.5 Ft. Type Coaxial Coaxial Coaxial Coaxial DX-Head Pressure & Free-Cooling Coil Control Valve Combinations DX Head Pressure Regulating Valves: DX Hd Pr. Valve Type - - - - - - - - - - -3-way, 150 psig DX Condenser Source Regulating Valve - factory installed - - - - - - - - - - - - Free-Cooling Valve - 3-way, Spring Actuated (Open/Close): Air Technology Systems, I FC Valve Size / (Cv) 1" / (7.0 Cv) 1" / (14.0 Cv) 1" / (14.0 Cv) 1" / (14.0 Cv) Valve Pressure Rating 300 psig 400 psig 400 psig 400 psig Optional Valve Combos - Please refer to page 3-9 for Higher Pressure Rated and Modulating (0-10 Vdc) Valve Combination Options! Connection Sizes - Copper Condensate Drain, (w/ In-Pan Pump) 3/4" FPT, (1/2"OD) 3/4" FPT, (1/2"OD) 3/4" FPT, (1/2"OD) 3/4" FPT, (1/2"OD) Humidifier Inlet 1/4" OD 1/4" OD 1/4" OD 1/4" OD Source Glycol In/Out 1-1/8" OD 1-1/8" OD 1-3/8" OD 1-3/8" OD Filters - 1" deep throwaway Nominal Size (in.), (Qty.) 16x20, (2) 20x20, (2) 20x20, (2) 24x24, (2) Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Weight 550 lbs 570 lbs 660 lbs 745 lbs DRYCOOLER DATA - Please refer to Glycol Pump / Drycooler Engineering Manual 105 F Amb. Selections - Optional - Please refer to Glycol Pump / Drycooler Engineering Manual Glycol Pump Packages - Optional - Please refer to Glycol Pump / Drycooler Engineering Manual 4-21

DX Water Cooled w/ Free-Cooling - 1 to 5 Ton "OHS" OHS Model 012-HW-FC 018-HW-FC 024-HW-FC 032-HW-FC 040-HW-FC 048-W-FC 060-W-FC DX COOLING CAPACITY - BTU/H, (includes standard DX w/ FC evaporator motor heat @ std CFM & e.s.p. ratings) 80 FDB/67 FWB, 50% RH Total 16,394 21,125 27,990 35,550 39,115 64,250 70,665 Sensible 11,675 16,000 20,455 24,575 29,500 49,240 54,100 75 FDB/62.5 FWB, 50% RH Total 14,850 19,345 25,750 32,700 35,830 58,820 64,690 Sensible 11,340 15,625 20,100 24,265 28,800 48,580 53,445 72 FDB/60 FWB, 50% RH Total 14,000 18,380 24,560 31,150 34,109 56,070 61,650 Sensible 11,050 16,400 19,680 23,775 28,093 47,600 52,345 80 FDB/65 FWB, 45% RH Total 15,570 20,430 26,840 34,170 37,355 61,635 67,730 Sensible 12,440 17,645 21,825 26,300 31,600 53,560 58,955 75 FDB/61 FWB, 45% RH Total 14,380 18,950 24,920 31,600 35,120 57,130 62,760 Sensible 12,250 17,040 21,075 25,360 30,560 51,780 56,975 72 FDB/58.5 FWB, 45% RH Total 13,620 18,065 23,685 30,060 33,460 54,460 59,795 Sensible 12,010 16,710 20,700 24,820 30,470 50,820 55,910 FREE-COOLING CAPACITY - BTU/H @ 45 F Entering Water Temperature, 0% Glycol Solution 80 FDB/67 FWB, 50% RH Total 20,595 27,790 32,980 39,210 48,040 75,585 83,475 Sensible 14,380 20,050 23,810 28,095 35,960 55,990 62,325 75 FDB/62.5 FWB, 50% RH Total 16,240 22,100 26,160 31,060 38,605 60,370 66,790 Sensible 12,975 18,215 21,605 25,280 32,710 51,050 56,895 72 FDB/60 FWB, 50% RH Total 14,010 19,125 22,600 26,820 33,565 52,360 57,970 Sensible 12,040 16,935 20,075 23,400 30,390 47,520 52,960 80 FDB/65 FWB, 45% RH Total 19,030 25,895 30,615 36,395 45,190 70,785 78,305 Sensible 15,130 21,250 25,190 29,490 38,160 59,610 66,435 75 FDB/61 FWB, 45% RH Total 15,350 20,985 24,750 29,390 36,840 57,550 63,570 Sensible 13,565 19,090 22,605 26,325 34,220 53,600 59,650 72 FDB/58.5 FWB, 45% RH Total 13,295 18,050 21,240 25,440 30,250 48,250 53,590 Sensible 12,620 17,640 20,880 24,400 30,250 48,250 53,590 Flow Rates, Free-Cooling Coil Flow Rate 3.8 GPM 4.9 GPM 6.4 GPM 8.3 GPM 9.0 GPM 14.1 GPM 15.6 GPM Evaporator Blower / Motor, DX w/ Free-Cooling - DWDI Centrifugal - Belt Driven, Variable Pitch Pulleys Horsepower 1/4 Hp 1/3 Hp 1/2 Hp 1/2 Hp 3/4 Hp 1-1/2 Hp 2 Hp CFM @ ext. st. press. 500 @ 0.5" 750 @ 0.5" 900 @ 0.5" 1,000 @ 0.5" 1,415 @ 0.5" 2,200 @ 0.5" 2,500 @ 0.5" Drive Method Belt Driven Belt Driven Belt Driven Belt Driven Belt Driven Belt Driven Belt Driven Evaporator Coils, (Both DX & Free-Cooling Respectively) - Aluminum Fin, Copper Tube DX Coil: Rows/ Face Area (ft2) 3/ 2.1 3/ 2.1 3/ 2.1 3/ 2.8 3/ 2.8 4/ 5.0 4/ 5.0 FC Coil: Rows/Face Area (ft2) 4/ 2.1 4/ 2.1 4/ 2.1 4/ 2.8 4/ 2.8 4/ 5.0 4/ 5.0 Performance Data - DX Water Cooled w/ FC (1 to 5 Ton Systems) 4-22

Performance Data - DX Water Cooled w/ FC (1 to 5 Ton Systems) DX Water Cooled w/ Free-Cooling - 1 to 5 Ton "OHS" OHS Model 012-HW-FC 018-HW-FC 024-HW-FC 032-HW-FC 040-HW-FC 048-W-FC 060-W-FC Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V 17,135 (5.0) 17,135 (5.0) 17,135 (5.0) 17,425 (5.1) 17,955 (5.3) 37,350 (10.9) 38,900 (11.4) @ 230V 18,840 (5.5) 18,840 (5.5) 18,840 (5.5) 19,130 (5.6) 19,660 (5.8) 43,140 (12.6) 44,690 (13.1) @ 460V 17,355 (5.1) 17,355 (5.1) 17,355 (5.1) 17,645 (5.2) 18,175 (5.3) 37,350 (10.9) 38,900 (11.4) @ 277/480V 18,065 (5.3) 18,065 (5.3) 18,065 (5.3) 18,355 (5.4) 18,885 (5.5) 38,835 (11.4) 40,385 (11.8) Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) 2-5, (1.7) 2-5, (1.7) 2-5, (1.7) 2-5, (1.7) 2-5, (1.7) 4-10, (3.4) 4-10, (3.4) Std Control Cycling Cycling Cycling Cycling Cycling Cycling Cycling Compressor - Heat pump duty rated, HCFC Ozone Safe R-22 Type, (Qty.) Recip., (1) Scroll, (1) Scroll, (1) Scroll, (1) Scroll, (1) Scroll, (1) Scroll, (1) Watts Input 1,245 1,239 1,633 2,118 2,222 3,451 3,867 DX Water Cooled Condenser Data - Based on 0% glycol solution Tot Heat of Reject. 18,900 Btu/h 24,350 Btu/h 32,145 Btu/h 41,325 Btu/h 44,865 Btu/h 70,600 Btu/h 77,890 Btu/h GPM @ 85 F EWT 3.8 GPM 4.9 GPM 6.4 GPM 8.3 GPM 9.0 GPM 14.1 GPM 15.6 GPM Total Unit PD (Ft. of H2O) 12.1 Ft. 16.3 Ft. 26.9 Ft. 21.6 Ft. 25.1 Ft. 16.5 Ft. 22.7 Ft. Type Coaxial Coaxial Coaxial Coaxial Coaxial Coaxial Coaxial DX-Head Pressure & Free-Cooling Coil Control Valve Combinations DX Head Pressure Control Valve Type - - - - - - - - 3-way, 150 psig DX Condenser Source Regulating Valve - field installed - - - - - - - - Free-Cooling Valve - 3-way, Spring Actuated (Open/Close): FC Valve Size / (Cv) 1/2" / (5.0 Cv) 3/4" / (5.0 Cv) 3/4" / (5.0 Cv) 3/4" / (5.0 Cv) 3/4" / (5.0 Cv) 1" / (7.0 Cv) 1" / (7.0 Cv) Valve Pressure Rating 300 psig 300 psig 300 psig 300 psig 300 psig 300 psig 300 psig Air Technology Systems, I Optional Valve Combinations - Please refer to page 3-9 for Higher Pressure Rated and Modulating (0-10 Vdc) Valve Combination Options! Connection Sizes - Copper Condensate Drain 3/4" FPT 3/4" FPT 3/4" FPT 3/4" FPT 3/4" FPT 3/4" FPT 3/4" FPT Humidifier Inlet 1/4" OD 1/4" OD 1/4" OD 1/4" OD 1/4" OD 1/4" OD 1/4" OD Source Water In/Out 5/8" OD 7/8" OD 7/8" OD 7/8" OD 7/8" OD 1-1/8" OD 1-1/8" OD Filters - 1" deep throwaway Nom. Size (in.), (Qty.) 20x20, (1) 20x20, (1) 20x20, (1) 20x20, (1) 20x20, (1) 20x16, (2) 20x16, (2) Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Weight 245 lbs 265 lbs 275 lbs 300 lbs 310 lbs 500 lbs 510 lbs 4-23

DX Water Cooled w/ Free-Cooling - 4 to 10 Ton (Dual) "OHS" OHS Model 048-DW-FC 072-DW-FC 084-DW-FC 120-DW-FC NET DX COOLING CAPACITY - BTU/H, (includes standard DX w/ FC evaporator motor heat @ std CFM & e.s.p. ratings) 80 FDB/67 FWB, 50% RH Total 57,200 79,165 98,760 139,210 Sensible 42,320 63,770 73,735 101,715 75 FDB/62.5 FWB, 50% RH Total 52,580 72,510 90,475 127,660 Sensible 41,620 63,225 72,760 100,040 72 FDB/60 FWB, 50% RH Total 50,100 69,035 86,090 121,610 Sensible 40,820 62,045 71,400 98,010 80 FDB/65 FWB, 45% RH Total 54,890 75,840 94,300 133,265 Sensible 45,740 70,425 81,160 110,080 75 FDB/61 FWB, 45% RH Total 50,960 70,200 87,050 123,460 Sensible 44,180 67,685 78,670 106,285 72 FDB/58.5 FWB, 45% RH Total 48,620 66,785 82,760 117,645 Sensible 43,390 65,220 77,320 104,340 FREE-COOLING CAPACITY - BTU/H @ 45 F Entering Water Temperature, 0% Glycol Solution 80 FDB/67 FWB, 50% RH Total 65,040 114,520 129,450 155,760 Sensible 47,200 82,710 92,855 114,040 75 FDB/62.5 FWB, 50% RH Total 51,715 92,810 103,815 124,035 Sensible 42,900 75,940 84,740 103,790 72 FDB/60 FWB, 50% RH Total 44,720 81,270 90,630 107,260 Sensible 39,870 71,045 79,175 96,470 80 FDB/65 FWB, 45% RH Total 60,530 108,660 121,700 145,395 Sensible 50,020 88,545 98,880 121,150 75 FDB/61 FWB, 45% RH Total 49,015 89,840 99,690 117,850 Sensible 44,910 80,380 89,360 108,830 72 FDB/58.5 FWB, 45% RH Total 42,040 78,890 87,155 100,940 Sensible 41,440 75,090 83,385 100,300 Flow Rates, Free-Cooling Coil Flow Rate 12.7 GPM 17.5 GPM 22.2 GPM 30.8 GPM Evaporator Blower / Motor, DX w/ Free-Cooling - DWDI Centrifugal - Belt Driven, Variable Pitch Pulleys Horsepower 1 Hp 1-1/2 Hp 2 Hp 3 Hp CFM @ ext. st. press. 1,800 @ 0.5" 3,000 @ 0.5" 3,350 @ 0.5" 4,400 @ 0.5" Drive Method Belt Driven Belt Driven Belt Driven Belt Driven Evaporator Coils, (Both DX & Free-Cooling Respectively) - Aluminum Fin, Copper Tube DX Coil: Rows/ Face Area (ft2) 4/ 4.1 4/ 6.7 4/ 6.7 4/ 10.0 FC Coil: Rows/Face Area (ft2) 4/ 4.1 4/ 6.7 4/ 6.7 4/ 10.0 Performance Data - DX Water Cooled w/ FC (4 to 10 Ton Dual Systems) 4-24

DX Water Cooled w/ Free-Cooling - 4 to 10 Ton (Dual) "OHS" Performance Data - DX Water Cooled w/ FC (4 to 10 Ton Dual Systems) OHS Model 048-DW-FC 072-DW-FC 084-DW-FC 120-DW-FC Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V/460V 36,810 (10.9) 38,900 (11.4) 40,510 (11.9) 43,580 (12.8) @ 230V 42,600 (12.5) 44,690 (13.1) 46,300 (13.6) 49,370 (14.5) @ 480V 38,295 (11.2) 40,385 (11.8) 41,995 (12.3) 45,065 (13.2) Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) 4-10, (3.4) 4-15, (5.1) 4-15, (5.1) 4-15, (5.1) Std Control Cycling Cycling Cycling Cycling Compressor - Heat pump duty rated, HCFC Ozone Safe R-22 Type, (Qty.) Scroll, (2) Scroll, (2) Scroll, (2) Scroll, (2) Watt Input (per compressor) 2,188 2,973 4,103 5,290 DX Water Cooled Condenser Data - Based on 0% glycol solution Total Heat of Reject. 63,525 Btu/h 87,405 Btu/h 110,770 Btu/h 154,060 Btu/h GPM @ 85 F EWT 12.7 GPM 17.5 GPM 22.2 GPM 30.8 GPM Press. Drop (Ft. of H2O) 26.8 Ft. 25.2 Ft. 28.3 Ft. 25.7 Ft. Type Coaxial Coaxial Coaxial Coaxial DX-Head Pressure & Free-Cooling Coil Control Valve Combinations DX Hd Pr. Valve Type - - - - - - - - - - 3-way, 150 psig DX Condenser Source Regulating Valve - factory installed - - - - - - - - - - Free-Cooling Valve - 3-way, Spring Actuated (Open/Close): FC Valve Size / (Cv) 1" / (7.0 Cv) 1" / (14.0 Cv) 1" / (14.0 Cv) 1" / (14.0 Cv) Air Technology Systems, I Valve Pressure Rating 300 psig 400 psig 400 psig 400 psig Optional Valve Combos - Please refer to page 3-9 for Higher Pressure Rated and Modulating (0-10 Vdc) Valve Combination Options! Connection Sizes - Copper Condensate Drain, (w/ In-Pan Pump) 3/4" FPT, (1/2"OD) 3/4" FPT, (1/2"OD) 3/4" FPT, (1/2"OD) 3/4" FPT, (1/2"OD) Humidifier Inlet 1/4" OD 1/4" OD 1/4" OD 1/4" OD Source Water In/Out 1-1/8" OD 1-1/8" OD 1-3/8" OD 1-3/8" OD Filters - 1" deep throwaway Nominal Size (in.), (Qty.) 16x20, (2) 20x20, (2) 20x20, (2) 24x24, (2) Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Weight 550 lbs 570 lbs 660 lbs 745 lbs 4-25

Alternate Water Source - 1 to 5 Ton "OHS" (45 F EWT) OHS Model 012-AWS 018-AWS 024-AWS 032-AWS 040-AWS 048-AWS 060-AWS COOLING CAPACITY - BTU/H @ 45 F EWT, 0% Glycol Solution (includes motor heat @ std CFM & e.s.p. ratings) 80 FDB/67 FWB, 50% RH High Flow Total 22,970 31,040 35,250 40,690 51,820 83,430 90,800 (8 F Tw) Sens. 15,340 21,380 24,650 28,610 37,500 58,940 64,920 GPM / (pd. Ft.) 5.8 / (19.6) 7.8 / (34.0) 8.8 / (43.1) 10.2 / (23.3) 13.0 / (36.8) 20.9 / (18.6) 22.8 / (21.9) Med. Flow Total 21,200 29,000 32,920 37,920 48,510 77,020 84,490 (10 F Tw) Sens. 14,560 20,470 23,600 27,310 35,930 56,080 62,060 GPM / (pd. Ft.) 4.3 / (11.2) 5.8 / (19.8) 6.6 / (25.1) 7.6 / (13.6) 9.7 / (21.5) 15.5 / (10.7) 17.1 / (12.7) Low Flow Total 19,390 26,780 30,740 34,840 45,270 69,650 76,840 (12 F Tw) Sens. 13,760 19,470 22,600 25,870 34,360 52,730 58,530 GPM / (pd. Ft.) 3.3 / (6.8) 4.5 / (12.2) 5.2 / (15.8) 5.8 / (8.3) 7.6 / (13.4) 11.7 / (6.4) 13.0 / (7.7) 75 FDB/62.5 FWB, 50% RH High Flow Total 16,460 22,790 25,940 30,060 38,720 60,970 67,120 (8 F Tw) Sens. 13,000 18,450 21,330 24,610 32,550 50,870 56,430 GPM / (pd. Ft.) 4.2 / (10.7) 5.7 / (19.4) 6.5 / (24.6) 7.6 / (13.4) 9.7 / (21.5) 15.4 / (10.6) 17.0 / (12.7) Med. Flow Total 15,110 21,030 24,210 27,600 36,030 54,830 60,770 (10 F Tw) Sens. 12,340 17,550 20,420 23,310 31,050 47,630 53,000 GPM / (pd. Ft.) 3.1 / (6.0) 4.2 / (11.1) 4.9 / (14.5) 5.6 / (7.6) 7.3 / (12.5) 11.1 / (5.8) 12.4 / (7.1) Low Flow Total 13,840 19,360 22,320 25,360 33,140 48,820 54,020 (12 F Tw) Sens. 11,690 16,640 19,340 22,060 29,340 44,100 48,950 GPM / (pd. Ft.) 2.3 / (3.7) 3.3 / (6.8) 3.8 / (8.9) 4.3 / (4.7) 5.6 / (7.6) 8.3 / (3.4) 9.2 / (4.1) 72 FDB/60 FWB, 50% RH High Flow Total 13,510 18,750 21,580 24,820 32,320 49,770 54,740 (8 F Tw) Sens. 11,700 16,630 19,340 22,120 29,440 45,580 50,480 GPM / (pd. Ft.) 3.4 / (7.5) 4.7 / (13.6) 5.5 / (17.8) 6.3 / (9.5) 8.1 / (15.4) 12.6 / (7.4) 13.9 / (8.8) Med. Flow Total 12,390 17,180 19,740 22,710 29,420 42,980 47,200 (10 F Tw) Sens. 11,080 15,690 18,190 20,860 27,580 41,330 45,670 GPM / (pd. Ft.) 2.5 / (4.2) 3.5 / (7.7) 4.0 / (10.0) 4.6 / (5.4) 6.0 / (8.6) 8.7 / (3.7) 9.6 / (4.5) Low Flow Total 11,120 15,320 17,510 20,120 25,810 33,790 37,580 (12 F Tw) Sens. 10,300 14,460 16,680 19,170 25,100 33,790 37,580 GPM / (pd. Ft.) 1.9 / (2.2) 2.6 / (4.5) 3.0 / (5.7) 3.4 / (3.1) 4.4 / (4.9) 5.8 / (1.6) 6.4 / (2.1) Alternate Water Source Control Valve - Sized for Medium Flow @ 75 FDB/62.5 FWB EAT Conditions 2-way (standard) - Spring Actuated (Open/Close) Size / (Cv) 1/2" / (3.5) 3/4" / (3.5) 3/4" / (3.7) 3/4" / (3.7) 3/4" / (3.7) 1.0" / (8.0) 1.0" / (8.0) Pressure Rating 300 psig 300 psig 300 psig 300 psig 300 psig 300 psig 300 psig Total Unit PD 8.0 Ft. 14.6 Ft. 19.4 Ft. 14.2 Ft. 22.6 Ft. 10.4 Ft. 12.7 Ft. 3-way (optional) - Spring Actuated (Open/Close) Size / (Cv) 1/2" / (5.0) 3/4" / (5.0) 3/4" / (5.0) 3/4" / (5.0) 3/4" / (5.0) 1.0" / (7.0) 1.0" / (7.0) Pressure Rating 300 psig 300 psig 300 psig 300 psig 300 psig 300 psig 300 psig Total Unit PD 7.1 Ft. 12.9 Ft. 17.0 Ft. 11.2 Ft. 17.5 Ft. 11.8 Ft. 14.4 Ft. Evaporator Coil, Alternate Water Source - Aluminum Fin, Copper Tube Rows/Face Area (ft2) 4 / 2.1 ft2 4 / 2.1 ft2 4 / 2.1 ft2 4 / 2.8 ft2 4 / 2.8 ft2 4/ 5.0 ft2 4/ 5.0 ft2 Evaporator Blower / Motor, Alternate Water Source - DWDI Centrifugal - Belt Driven, Variable Pitch Pulleys Horsepower 1/4 Hp 1/3 Hp 1/2 Hp 1/2 Hp 3/4 Hp 1-1/2 Hp 2 Hp CFM @ ext. st. press. 500 @ 0.5" 750 @ 0.5" 900 @ 0.5" 1,000 @ 0.5" 1,415 @ 0.5" 2,200 @ 0.5" 2,500 @ 0.5" Drive Method Belt Driven Belt Driven Belt Driven Belt Driven Belt Driven Belt Driven Belt Driven Connection Sizes, Alternate Water Source - Copper, (@ 75 FDB/62.5 FWB EAT flow rate conditions.) Chilled Water In/Out 5/8" OD 7/8" OD 7/8" OD 7/8" OD 7/8" OD 1-1/8" OD 1-1/8" OD Performance Data - Alternate Water Source (45 F EWT) 4-26

Performance Data - Alternate Water Source (45 F EWT) Alternate Water Source - 4 to 10 Ton "OHS" (45 F EWT) OHS Model 048D()-AWS 072D()-AWS 084D()-AWS 120D()-AWS NET COOLING CAPACITY - BTU/H @ 45 F EWT, 0% Glycol Solution (includes motor heat @ std CFM & e.s.p. ratings) 80 FDB/67 FWB, 50% RH High Flow Total 70,490 134,100 144,440 166,850 (8 F Tw) Sensible 49,290 90,760 98,710 117,880 GPM / (pd. Ft.) 17.6 / (43.1) 33.5 / (46.3) 36.1 / (53.2) 41.8 / (18.6) Med. Flow Total 65,830 125,560 135,080 154,030 (10 F Tw) Sensible 47,200 87,010 94,600 112,150 GPM / (pd. Ft.) 13.2 / (25.1) 25.2 / (27.5) 27.1 / (31.5) 31.0 / (10.7) Low Flow Total 61,480 117,370 126,560 139,290 (12 F Tw) Sensible 45,200 83,420 90,820 105,460 GPM / (pd. Ft.) 10.4 / (15.8) 19.6 / (17.4) 21.2 / (20.1) 23.4 / (6.4) 75 FDB/62.5 FWB, 50% RH High Flow Total 51,880 99,080 106,720 121,940 (8 F Tw) Sensible 42,660 78,510 85,490 101,740 GPM / (pd. Ft.) 13.0/ (24.6) 24.8 / (26.9) 26.8 / (30.8) 30.8 / (10.6) Med. Flow Total 48,420 93,260 100,560 109,650 (10 F Tw) Sensible 40,30 75,670 82,420 95,250 GPM / (pd. Ft.) 9.8 / (14.5) 18.8 / (16.1) 20.3 / (18.5) 22.2 / (5.8) Low Flow Total 44,630 87,270 94,830 97,640 (12 F Tw) Sensible 38,670 72,610 79,360 88,190 GPM / (pd. Ft.) 7.6 / (8.9) 14.6 / (10.2) 15.9 / (11.9) 16.6 / (3.4) Air Technology Systems, I 72 FDB/60 FWB, 50% RH High Flow Total 43,150 83,050 89,560 99,540 (8 F Tw) Sensible 38,670 71,570 77,990 91,150 GPM / (pd. Ft.) 11.0 / (17.8) 20.9 / (19.6) 22.5 / (22.6) 25.2 / (7.4) Med. Flow Total 39,480 78,610 84,870 85,960 (10 F Tw) Sensible 36,380 69,090 75,240 82,660 GPM / (pd. Ft.) 8.0 / (10.0) 15.8 / (11.9) 17.2 / (13.7) 17.4 / (3.7) Low Flow Total 35,020 71,630 77,770 67,580 (12 F Tw) Sensible 33,360 64,930 70,840 67,580 GPM / (pd. Ft.) 6.0 / (5.7) 12.0 / (7.2) 13.1 / (8.4) 11.6 / (1.6) Alternate Water Source Control Valve - Sized for Medium Flow @ 75 FDB/62.5 FWB EAT Conditions 2-way (standard) - Spring Actuated (Open/Close) Size / (Cv) 1" / (8.0) 1" / (14.0) 1" / (14.0) 1" / (14.0) Pressure Rating 300 psig 400 psig 400 psig 400 psig Total Unit Pressure Drop 19.4 Ft. 20.7 Ft. 24.1 Ft. 12.5 Ft. 3-way (optional) - Spring Actuated (Open/Close) Size / (Cv) 1" / (7.0) 1" / (14.0) 1" / (14.0) 1" / (14.0) Valve Pressure Rating 300 psig 400 psig 400 psig 400 psig Total Unit Pressure Drop 17.0 Ft. 20.7 Ft. 24.1 Ft. 12.5 Ft. Evaporator Coil, Alternate Water Source - Aluminum Fin, Copper Tube Rows/Face Area (ft2) 4/ 4.1 ft2 4/ 6.7 ft2 4/ 6.7 ft2 4/ 10.0 ft2 Evaporator Blower / Motor, Alternate Water Source - DWDI Centrifugal - Belt Driven, Variable Pitch Pulleys Horsepower 1 Hp 1-1/2 Hp 2 Hp 3 Hp CFM @ ext. st. press. 1,800 @ 0.5" 3,000 @ 0.5" 3,350 @ 0.5" 4,400 @ 0.5" Drive Method Belt Driven Belt Driven Belt Driven Belt Driven Connection Sizes, Alternate Water Source - Copper, (@ 75 FDB/62.5 FWB EAT flow rate conditions.) Chilled Water In/Out 1-1/8" OD 1-1/8" OD 1-1/8" OD 1-3/8" OD 4-27

Alternate Water Source - 42 F/50 F EWT Cooling Capacities (BTU/H) for 42 F Chilled Water Entering the Cooling Coil 80 FDB/67 FWB 012-AWS 018-AWS 024-AWS 032-AWS 040-AWS 048-AWS 060-AWS 072-AWS 084-AWS 120-AWS High Flow Total 26,260 35,660 40,630 46,540 59,330 96,270 104,840 153,410 165,430 191,860 (8 F Tw) Sensible 16,820 23,440 27,080 31,360 40,970 64,660 71,110 99,310 107,930 128,640 GPM/(Ft.) 6.6/(25.0) 8.9/(43.9) 10.1/(55.8) 11.6/(29.8) 14.8/(47.2) 24.0/(24.2) 26.2/(28.4) 38.3/(59.6) 41.3/(68.6) 42.0/(24.2) Med Flow Total 24,550 33,500 38,180 43,710 55,750 89,650 97,830 144,620 155,710 178,610 (10 F Tw) Sensible 16,030 22,450 25,960 30,010 39,270 61,650 67,920 95,310 103,520 122,630 GPM/(Ft.) 4.9/(14.8) 6.7/(25.8) 7.6/(32.9) 8.7/(17.6) 11.1/(27.7) 17.9/(14.1) 19.6/(16.6) 28.9/(35.7) 31.2/(41.0) 35.8/(14.1) Low Flow Total 22,660 31,170 35,790 40,430 52,300 81,320 59,560 135,610 146,250 161,960 (12 F Tw) Sensible 15,180 21,390 24,860 28,450 37,600 57,910 64,180 91,260 99,260 115,150 GPM/(Ft.) 3.8/(9.1) 5.2/(16.1) 6.0/(20.8) 6.7/(10.9) 8.7/(17.6) 13.6/(8.4) 15.0/(10.1) 22.6/(22.7) 24.5/(26.3) 27.2/(8.4) 75 FDB/62.5 FWB 012-AWS 018-AWS 024-AWS 032-AWS 040-AWS 048-AWS 060-AWS 072-AWS 084-AWS 120-AWS High Flow Total 19,450 26,760 30,590 35,200 45,190 72,100 79,070 115,660 124,650 143,530 (8 F Tw) Sensible 14,380 20,310 23,570 27,140 35,750 56,180 62,130 86,120 93,710 111,680 GPM/(Ft.) 4.9/(14.5) 6.7/(25.9) 7.6/(33.2) 8.8/(17.9) 11.3/(28.4) 18.1/(14.3) 19.9/(17.1) 28.9/(35.8) 31.2/(41.1) 36.2/(14.3) Med Flow Total 17,880 24,830 28,560 32,460 42,280 65,300 72,010 108,750 117,090 129,920 (10 F Tw) Sensible 13,620 19,360 22,540 25,730 24,220 52,790 58,560 82,780 90,030 104,910 GPM/(Ft.) 3.6/(8.2) 5.0/(15.1) 5.7/(19.3) 6.5/(10.2) 8.5/(16.7) 13.1/(7.9) 14.5/(9.6) 21.8/(21.4) 23.5/(24.5) 26.2/(7.9) Low Flow Total 16,370 22,860 26,690 29,890 39,060 58,870 65,240 101,470 110,240 117,060 (12 F Tw) Sensible 12,880 18,360 21,440 24,390 32,470 49,420 54,950 79,230 86,610 98,170 GPM/(Ft.) 2.8/(5.0) 3.8/(9.2) 4.4/(11.9) 5.0/(6.3) 6.5/(10.2) 9.9/(4.7) 11.0/(5.7) 17.0/(13.6) 18.5/(15.8) 19.8/(4.7) 72 FDB/60 FWB 012-AWS 018-AWS 024-AWS 032-AWS 040-AWS 048-AWS 060-AWS 072-AWS 084-AWS 120-AWS High Flow Total 16,130 22,430 25,760 29,550 38,380 59,940 65,890 97,760 105,340 119,190 (8 F Tw) Sensible 12,960 18,450 21,470 24,590 32,650 50,840 56,300 78,590 85,540 100,990 GPM/(Ft.) 4.1/(10.4) 5.7/(19.0) 6.4/(24.0) 7.4/(13.0) 9.6/(21.0) 15.1/(10.2) 16.6/(12.3) 24.5/(26.4) 26.4/(30.3) 30.2/(10.2) Med Flow Total 14,790 20,650 23,870 27,110 35,430 53,890 59,500 91,990 99,230 107,110 (10 F Tw) Sensible 12,270 17,500 20,430 23,230 30,950 47,500 52,690 75,630 82,350 94,310 GPM/(Ft.) 3.0/(5.9) 4.2/(10.8) 4.8/(14.0) 5.4/(7.4) 7.1/(12.1) 10.8/(5.6) 12.0/(6.8) 18.5/(15.8) 20.0/(18.2) 21.6/(5.6) Low Flow Total 13,530 18,980 21,970 24,850 32,490 47,370 52,240 84,910 92,170 94,070 (12 F Tw) Sensible 11,590 16,540 19,310 21,920 29,140 43,510 48,160 71,880 78,490 86,340 GPM/(Ft.) 2.3/(3.4) 3.2/(6.6) 3.7/(8.6) 4.2/(4.5) 5.4/(7.3) 8.0/(3.2) 8.8/(3.8) 14.2/(9.9) 15.5/(11.4) 16.0/(3.2) Cooling Capacities (BTU/H) for 50 F Chilled Water Entering the Cooling Coil 80 FDB/67 FWB 012-AWS 018-AWS 024-AWS 032-AWS 040-AWS 048-AWS 060-AWS 072-AWS 084-AWS 120-AWS High Flow Total 17,340 23,720 27,070 31,550 40,300 64,160 69,840 102,640 110,880 127,640 (8 F Tw) Sensible 12,970 18,360 21,350 24,670 32,580 51,150 56,420 77,640 84,770 101,610 GPM/(Ft.) 4.4/(11.6) 6.0/(20.6) 6.8/(26.0) 7.9/(14.5) 10.1/(22.7) 16.1/(11.4) 17.6/(13.4) 25.7/(28.3) 27.9/(32.7) 32.2/(11.4) Med Flow Total 15,870 22,110 25,390 29,130 36,840 58,670 64,760 96,430 103,990 116,670 (10 F Tw) Sensible 12,330 17,620 20,530 23,520 31,310 48,530 53,880 74,920 81,700 96,380 GPM/(Ft.) 3.2/(6.5) 4.5/(12.0) 5.1/(15.3) 5.8/(8.2) 7.6/(13.4) 11.8/(6.4) 13.1/(7.8) 19.4/(16.9) 21.0/(19.5) 23.6/(6.4) Low Flow Total 14,570 20,410 23,660 26,770 35,130 52,860 58,460 91,030 97,870 105,040 (12 F Tw) Sensible 11,730 16,780 19,640 22,320 29,840 45,480 50,480 72,410 78,760 90,280 GPM/(Ft.) 2.5/(4.0) 3.4/(7.4) 4.0/(9.7) 4.5/(5.1) 5.9/(8.3) 8.9/(3.8) 9.9/(4.6) 15.3/(10.9) 16.4/(12.5) 17.8/(3.8) 75 FDB/62.5 FWB 012-AWS 018-AWS 024-AWS 032-AWS 040-AWS 048-AWS 060-AWS 072-AWS 084-AWS 120-AWS High Flow Total 12,100 16,730 19,200 22,380 28,770 43,580 45,430 75,480 80,860 86,480 (8 F Tw) Sensible 10,990 15,610 18,170 20,880 27,580 42,410 45,430 67,760 73,570 84,150 GPM/(Ft.) 3.1/(6.1) 4.2/(10.9) 4.8/(14.0) 5.7/(7.8) 7.2/(12.3) 11.0/(5.6) 11.5/(6.1) 19.0/(16.3) 20.4/(18.6) 22.0/(5.6) Med Flow Total 10,900 14,880 16,960 19,860 23,400 36,050 39,970 71,720 76,250 71,430 (10 F Tw) Sensible 10,270 14,430 16,690 19,290 23,400 36,050 39,970 65,350 70,550 71,430 GPM/(Ft.) 2.2/(3.3) 3.0/(5.8) 3.4/(7.4) 4.0/(4.2) 4.8/(5.7) 7.3/(2.7) 8.2/(3.3) 14.4/(9.9) 15.4/(11.2) 14.6/(2.7) Low Flow Total 8,710 12,380 14,420 15,370 20,380 30,000 33,350 54,330 59,290 59,330 (12 F Tw) Sensible 8,710 12,380 14,420 15,370 20,380 30,000 33,350 54,330 59,290 59,330 GPM/(Ft.) 1.5/(1.3) 2.1/(2.9) 2.4/(3.9) 2.6/(1.7) 3.5/(3.1) 5.1/(1.2) 5.7/(1.6) 9.2/(4.4) 10.0/(5.1) 10.2/(1.2) 72 FDB/60 FWB 012-AWS 018-AWS 024-AWS 032-AWS 040-AWS 048-AWS 060-AWS 072-AWS 084-AWS 120-AWS High Flow Total 8,950 12,720 14,820 16,220 21,520 33,560 37,150 55,560 60,470 66,440 (8 F Tw) Sensible 8,950 12,720 14,820 16,220 21,520 33,560 37,150 55,560 60,470 66,440 GPM/(Ft.) 2.3/(3.5) 3.2/(6.6) 3.7/(8.7) 4.1/(4.3) 5.5/(7.3) 8.5/(3.5) 9.5/(4.3) 14.1/(9.5) 15.4/(11.1) 17.0/(3.5) Med Flow Total 7,930 11,260 13,120 14,070 18,640 27,890 30,910 49,330 53,790 55,100 (10 F Tw) Sensible 7,930 11,260 13,120 14,070 18,640 27,890 30,910 49,330 53,790 55,100 GPM/(Ft.) 1.6/(1.6) 2.3/(3.5) 2.7/(4.6) 2.9/(2.1) 3.8/(3.7) 5.7/(1.6) 6.4/(2.0) 10.0/(5.1) 11.0/(6.0) 11.4/(1.6) Low Flow Total 6,690 9,550 11,140 11,500 15,340 20,870 23,350 41,390 45,320 41,060 (12 F Tw) Sensible 6,690 9,550 11,140 11,500 15,340 20,870 23,350 41,390 45,320 41,060 GPM/(Ft.) 1.1/(0.7) 1.6/(1.6) 1.9/(2.3) 2.0/(0.8) 2.6/(1.7) 3.6/(0.5) 4.1/(0.7) 7.0/(2.7) 7.7/(3.2) 7.2/(0.5) (Note: The above Net Cooling capacities include standard motor heat @ standard CFM/e.s.p. as shown on page 4-24 & 4-25, Evaporator Blower/Motor.) Performance Data - Alternate Water Source @ 42 F / 50 F EWT 4-28

Electrical Data - Index Electrical Data - Index INDEX MODEL TYPE...page DX - Compressorized Systems Single Compressor Systems: OHS-012 thru 040-AS... 5-2 OHS-012 thru 024-AR, W & G... 5-2 OHS-032 thru 060-AR, W & G... 5-3 Dual Compressor Systems: OHS-048 thru 120-DAR, DW & DG... 5-4 CeilAiR Ceiling AC's FLA / MCA / MFS Free-Cooling & Alternate Water Source Single Circuit Systems: OHS-012 thru 040-HAR, HW, HG-FC/AWS... 5-7 OHS-048 thru 060-AR, W, G-FC/AWS... 5-7 Dual Circuit Systems: OHS-048 thru 120-DAR, DW, DG-FC/AWS... 5-8 Air Technology Systems, I DX - Air Handling Units Chilled Water Single Circuit Systems: OHS-012 thru 060-AHU... 5-5 Dual Circuit Systems: OHS-048 thru 120-DAHU... 5-6 OHS-012 thru 120-C... 5-9 << Electrical Data Notes >> 1) Electrical Data is based on standard performance and component selection per Section 4 of this brochure. Please consult your local Sales Representative for "special" equipment electrical data. 2) High Static Pressure Belt-Drive Option - Electrical Data in the pages to follow are based on Standard CFM's and External Static Pressures. Please Consult your local Sales Representative for component and electrical rating data for this Option. 5-1

Electrical Data - DX Compressorized Systems Model OHS-012-AS OHS-018-AS OHS-024-AS OHS-032-AS OHS-040-AS OHS-048-AS OHS-060-AS FLA FLA FLA FLA FLA FLA FLA COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60 11.7 14.4 20 13.2 17.6 25 15.4 23.0 30 19.2 27.2 35 20.0 29.5 40 N/A N/A 277/1/60 9.8 12.2 15 11.0 14.7 20 13.7 20.2 25 16.5 24.0 30 18.0 25.2 35 N/A N/A 208/3/60 N/A N/A 12.5 16.8 25 15.0 20.1 30 15.8 21.4 30 N/A N/A 460/3/60 N/A N/A 7.4 9.5 15 8.3 10.9 15 9.9 12.6 15 N/A N/A COOLING and ELECTRIC REHEAT/HEAT, with or without Humidifier 208/1/60 34.4 42.8 45 35.9 46.0 50 38.1 51.4 60 41.9 55.6 60 42.7 57.9 70 N/A N/A 277/1/60 27.8 34.8 35 29.9 38.3 40 31.8 42.7 45 34.5 46.5 50 36.1 47.7 50 N/A N/A 208/3/60 N/A N/A 25.6 33.2 35 28.1 36.5 40 28.9 37.8 45 N/A N/A 460/3/60 N/A N/A 13.6 17.3 20 14.5 18.7 20 16.1 20.5 25 N/A N/A COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60 19.9 22.6 25 21.4 25.8 35 23.6 31.2 45 27.4 35.4 50 28.2 37.7 50 N/A N/A 277/1/60 16.0 18.4 20 17.9 21.5 25 19.9 26.4 35 22.7 30.2 40 24.2 31.4 45 N/A N/A 208/3/60 N/A N/A 20.7 25.0 30 23.2 28.3 35 24.0 29.6 40 N/A N/A 460/3/60 N/A N/A 11.1 13.2 15 12.0 14.6 20 13.6 16.3 20 N/A N/A COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60 25.4 31.8 35 25.4 31.8 35 25.4 31.8 35 26.1 32.7 35 26.5 33.2 35 N/A N/A 277/1/60 20.6 25.7 30 21.2 26.5 30 20.6 25.7 30 20.8 25.9 30 22.0 27.4 30 N/A N/A 208/3/60 N/A N/A 15.8 19.8 20 16.5 20.7 20 16.9 21.4 25 N/A N/A 460/3/60 N/A N/A 7.9 9.8 15 8.3 10.9 15 9.9 12.6 15 N/A N/A OHS-012-AR, W, & G OHS-018-AR, W, & G OHS-024-AR, W, & G Model FLA (OEM Rated) FLA (OEM Rated) FLA (OEM Rated) AR W G AR W G AR W G COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60 8.8 8.0 9.0 11.5 15 9.9 8.3 10.4 14.3 20 12.1 10.1 12.7 19.7 30 277/1/60 7.6 6.9 7.7 10.0 15 8.3 7.0 8.7 12.0 15 10.3 8.6 10.8 16.8 25 208/3/60 N/A N/A 9.3 8.2 9.6 13.5 20 460/3/60 N/A N/A 4.9 4.4 5.1 7.0 15 COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60 31.5 30.7 31.7 39.9 40 32.6 31.0 33.1 42.7 45 34.8 32.8 35.4 48.1 50 277/1/60 25.6 24.9 25.8 32.6 35 27.2 25.8 27.6 35.6 40 28.4 26.7 28.9 39.3 45 208/3/60 N/A N/A 22.4 21.3 22.7 29.9 35 460/3/60 N/A N/A 11.2 10.6 11.3 14.8 15 COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60 17.0 16.2 17.2 19.7 25 18.1 16.5 18.6 22.5 30 20.3 18.3 20.9 27.9 40 277/1/60 13.8 13.1 13.9 16.2 20 15.1 13.8 15.5 18.8 25 16.5 14.8 17.0 23.0 30 208/3/60 N/A N/A 17.5 16.4 17.8 21.7 30 460/3/60 N/A N/A 8.6 8.1 8.8 10.7 15 COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60 25.4 25.4 25.4 31.8 35 25.4 25.4 25.4 31.8 35 25.4 25.4 25.4 31.8 35 277/1/60 20.6 20.6 20.6 25.7 30 21.2 21.2 21.2 26.5 30 20.6 20.6 20.6 25.7 30 208/3/60 N/A N/A 15.8 15.8 15.8 19.8 20 460/3/60 N/A N/A 7.9 7.9 7.9 9.8 15 COOLING and ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60 33.6 33.6 33.6 42.0 45 33.6 33.6 33.6 42.7 45 34.8 33.6 35.4 48.1 50 277/1/60 26.8 26.8 26.8 33.4 35 28.0 28.0 28.0 35.6 40 28.4 26.8 28.9 39.3 45 208/3/60 N/A N/A 24.0 24.0 24.0 30.0 35 460/3/60 N/A N/A 11.6 11.6 11.6 14.8 15 (*) Current Draws are given in the following order: FLA FLA = Full Load Amps MCA = Minimum Circuit Amps (wire size amps) MFS = Maximum Fuse Size Electrical Data - DX Compressorized Systems 5-2

Electrical Data - DX Compressorized Systems Electrical Data - DX Compressorized Systems Model OHS-032-AR, W, & G OHS-040-AR, W, & G OHS-048-AR, W, & G OHS-060-AR, W, & G FLA (OEM Rated) FLA (OEM Rated) FLA (OEM Rated) FLA (OEM Rated) AR W G AR W G AR W G AR W G COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60 15.9 13.4 16.6 23.9 35 16.7 14.1 17.5 26.2 40 N/A N/A 277/1/60 13.1 11.0 13.7 20.6 30 14.6 12.4 15.3 21.8 30 N/A N/A 208/3/60 11.7 10.5 12.1 16.8 25 12.5 11.3 12.9 18.1 25 17.1 15.0 17.8 24.4 45 19.9 17.5 20.7 31.2 45 460/3/60 5.8 5.2 6.0 8.4 15 7.4 6.8 7.6 10.1 15 8.7 7.4 9.1 12.5 15 10.2 9.0 10.6 15.4 25 COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60 38.6 36.1 39.3 52.3 60 39.4 36.8 40.2 54.6 60 N/A N/A 277/1/60 31.1 29.1 31.7 43.1 50 32.7 30.5 33.3 44.3 50 N/A N/A 208/3/60 24.8 23.6 25.2 33.2 40 25.6 24.4 26.0 34.5 40 43.3 41.2 44.0 57.2 70 46.1 43.7 46.9 64.0 70 460/3/60 12.0 11.4 12.2 16.2 20 13.6 13.0 13.8 18.0 20 21.3 20.0 21.7 28.1 30 22.8 21.6 23.2 31.1 35 COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60 24.1 21.6 24.8 32.1 45 24.9 22.3 25.7 34.4 50 N/A N/A 277/1/60 19.3 17.2 19.9 26.8 40 20.8 18.6 21.5 28.0 40 N/A N/A 208/3/60 19.9 18.7 20.3 25.0 35 20.7 19.5 21.1 26.3 35 33.5 31.4 34.2 40.8 60 36.3 33.9 37.1 47.6 60 460/3/60 9.5 8.9 9.7 12.1 15 11.1 10.5 11.3 13.8 15 16.1 14.8 16.5 19.9 25 17.6 16.4 18.0 22.8 30 COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60 26.1 26.1 26.1 32.7 35 26.5 26.5 26.5 33.2 35 N/A N/A 277/1/60 20.8 20.8 20.8 25.9 30 22.0 22.0 22.0 27.4 30 N/A N/A 208/3/60 16.5 16.5 16.5 20.7 25 16.9 16.9 16.9 21.2 25 30.1 30.1 30.1 37.7 40 31.5 31.5 31.5 39.4 40 460/3/60 7.9 7.9 7.9 9.8 15 9.3 9.3 9.3 11.6 15 14.8 14.8 14.8 18.4 20 15.5 15.5 15.5 19.3 20 COOLING and ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60 38.6 36.1 39.3 52.3 60 39.4 36.8 40.2 54.6 60 N/A N/A Air Technology Systems, I 277/1/60 31.1 29.1 31.7 43.1 50 32.7 30.5 33.3 44.3 50 N/A N/A 208/3/60 24.8 24.7 25.2 33.2 40 25.6 25.1 26.0 34.5 40 46.5 46.5 46.5 58.2 70 47.9 47.9 47.9 64.0 70 460/3/60 12.0 11.6 12.2 16.2 20 13.6 13.0 13.8 18.0 20 22.2 22.2 22.2 28.1 30 22.9 22.9 23.2 31.1 35 5-3

Electrical Data - DUAL DX OHS-048-DAR, DW, & DG OHS-072-DAR, DW, & DG OHS-084-DAR, DW, & DG OHS-120-DAR, DW, & DG Model FLA (OEM rated) FLA (OEM rated) FLA (OEM rated) FLA (OEM rated) DAR DW DG DAR DW DG DAR DW DG DAR DW DG COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60 N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 16.7 14.5 17.3 22.9 30 22.7 20.3 23.5 31.0 40 29.3 25.7 30.5 40.7 50 37.9 33.1 39.5 55.3 70 460/3/60 8.6 7.5 8.9 11.7 15 11.6 10.4 12.0 15.7 20 14.9 13.1 15.5 20.6 30 19.2 16.8 20.0 27.1 35 COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60 N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 36.3 35.2 36.6 47.1 50 40.2 39.0 40.6 52.4 60 44.3 42.5 44.9 58.5 70 49.5 47.1 50.3 67.4 80 460/3/60 17.9 17.3 18.0 23.1 25 19.8 19.2 20.0 25.7 30 21.9 21.0 22.2 28.8 35 24.5 23.3 24.9 32.8 40 COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60 N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 33.1 30.9 33.7 39.3 45 36.9 34.5 37.7 45.2 50 43.5 39.9 44.7 54.9 60 52.1 47.3 53.7 69.5 80 460/3/60 16.0 14.9 16.3 19.1 20 18.0 16.8 18.4 22.1 25 21.3 19.5 21.9 27.0 35 25.6 23.2 26.4 33.5 40 COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60 N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 29.7 29.7 29.7 37.2 40 31.5 31.5 31.5 39.4 45 33.1 33.1 33.1 41.4 45 37.9 34.9 39.5 55.3 70 460/3/60 14.6 14.6 14.6 18.2 20 15.5 15.5 15.5 19.3 25 16.3 16.3 16.3 20.6 25 19.2 17.2 20.0 27.1 35 COOLING and ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60 N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 46.1 46.1 46.1 57.7 60 45.7 45.7 45.7 57.2 60 47.3 47.3 47.3 59.2 70 52.1 49.1 53.7 69.5 80 460/3/60 22.0 22.0 22.0 27.4 30 21.9 21.9 21.9 27.3 30 22.7 22.7 22.7 26.7 35 25.6 23.6 26.4 33.5 40 Dual Compressor Systems with C-Tech-10 Microprocessor Note-1: Dual compressor systems incorporating C-Tech-10 controls provide 2(two) compressor stages of Cooling and 2(two) compressor stages of Dehumidification. The A-Tech-1.2 and A-Tech-20 controls provide 2(two) compressor stages of Cooling and 1(one) compressor stage of Dehumidification. Therefore, electrical data for dual compressor systems with dehumidification mode (reheat) is controller dependent as shown above. (see Note-1) OHS-048-DAR, DW, & DG OHS-072-DAR, DW, & DG OHS-084-DAR, DW, & DG OHS-120-DAR, DW, & DG Model FLA (OEM rated) FLA (OEM rated) FLA (OEM rated) FLA (OEM rated) DAR DW DG DAR DW DG DAR DW DG DAR DW DG COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60 N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 42.9 40.7 43.5 55.7 60 48.9 46.5 49.7 63.8 70 55.5 51.9 56.7 73.5 80 64.1 59.3 65.7 88.1 100 460/3/60 21.2 20.1 21.5 27.4 30 24.2 23.0 24.6 31.4 35 27.5 25.7 28.1 36.3 40 31.8 29.4 32.6 42.8 45 COOLING and ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60 N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 46.1 46.1 46.1 57.7 60 48.9 46.5 49.7 63.8 70 55.5 51.9 56.7 73.5 80 64.1 59.3 65.7 88.1 100 460/3/60 22.0 22.0 22.0 27.4 30 24.2 23.0 24.6 31.4 35 27.5 25.7 28.1 36.3 40 31.8 29.4 32.6 42.8 45 (*) Current Draws are given in the following order: FLA FLA = Full Load Amps MCA = Minimum Circuit Amps (wire size amps) MFS = Maximum Fuse Size Electrical Data - Dual DX & Remote Air Cooled Condensers 5-4

Electrical Data - Air Cooled ("AHU / RCU") Electrical Data - Air Cooled "AHU / RCU" OHS-012-AHU OHS-018-AHU OHS-024-AHU OHS-032-AHU Model FLA FLA FLA FLA COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60 2.7 3.4 15 2.7 3.4 15 2.7 3.4 15 3.4 4.3 15 277/1/60 2.5 3.1 15 2.5 3.1 15 2.5 3.1 15 2.7 3.4 15 208/3/60 2.7 3.4 15 2.7 3.4 15 2.7 3.4 15 3.4 4.3 15 460/3/60 1.6 2.0 15 1.6 2.0 15 1.6 2.0 15 1.6 2.0 15 COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60 25.4 31.8 35 25.4 31.8 35 25.4 31.8 35 26.1 32.7 35 277/1/60 20.6 25.7 30 20.6 25.7 30 20.6 25.7 30 20.8 25.9 30 208/3/60 15.8 19.8 20 15.8 19.8 20 15.8 19.8 20 16.5 20.7 25 460/3/60 7.9 9.8 15 7.9 9.8 15 7.9 9.8 15 7.9 9.8 15 COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60 10.9 13.6 15 10.9 13.6 15 10.9 13.6 15 11.6 14.5 15 277/1/60 8.7 10.9 15 8.7 10.9 15 8.7 10.9 15 8.9 11.1 15 208/3/60 10.9 13.6 15 10.9 13.6 15 10.9 13.6 15 11.6 14.5 15 460/3/60 5.3 6.6 15 5.3 6.6 15 5.3 6.6 15 5.3 6.6 15 COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60 25.4 31.8 35 25.4 31.8 35 25.4 31.8 35 26.1 32.7 35 277/1/60 20.6 35.7 30 20.6 25.7 30 20.6 25.7 30 20.8 25.9 30 208/3/60 15.8 19.8 20 15.8 19.8 20 15.8 19.8 20 16.5 20.7 25 460/3/60 7.9 9.8 15 7.9 9.8 15 7.9 9.8 15 7.9 9.8 15 COOLING with ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60 33.6 42.0 45 33.6 42.0 45 33.6 42.0 45 34.3 42.9 45 277/1/60 26.8 33.4 35 26.8 33.4 35 26.8 33.4 35 27.7 33.7 35 Air Technology Systems, I 208/3/60 24.0 30.0 30 24.0 30.0 30 24.0 30.0 30 24.7 30.9 35 460/3/60 11.6 14.5 15 11.6 14.5 15 11.6 14.5 15 11.6 14.5 15 Model OHS-040-AHU OHS-048-AHU OHS-060-AHU FLA FLA FLA COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60 3.8 4.8 15 N/A N/A 277/1/60 3.9 4.9 15 N/A N/A 208/3/60 3.8 4.8 15 3.9 4.9 15 5.3 6.6 15 460/3/60 3.0 3.8 15 2.2 2.8 15 2.9 3.6 15 COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60 26.5 33.2 35 N/A N/A 277/1/60 22.0 27.4 30 N/A N/A 208/3/60 16.9 21.2 25 30.1 37.7 40 31.5 39.4 40 460/3/60 9.3 11.6 15 14.8 18.4 20 15.5 19.3 20 COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60 12.0 15.0 20 N/A N/A 277/1/60 10.1 12.6 15 N/A N/A 208/3/60 12.0 15.0 20 20.3 25.4 30 21.7 27.1 30 460/3/60 6.7 8.4 15 9.6 12.0 15 10.3 12.9 15 COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60 26.5 33.2 35 N/A N/A 277/1/60 22.0 27.4 30 N/A N/A 208/3/60 16.9 21.2 25 30.1 37.7 40 31.5 39.4 40 460/3/60 9.3 11.6 15 14.8 18.4 20 15.5 19.3 20 COOLING with ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60 34.7 43.4 45 N/A N/A 277/1/60 28.2 35.2 40 N/A N/A 208/3/60 25.1 31.4 35 46.5 58.2 60 47.9 59.9 60 460/3/60 13.0 16.2 20 22.2 27.7 30 22.9 28.6 30 (*) Current Draws are given in the following order: FLA FLA = Full Load Amps MCA = Minimum Circuit Amps (wire size amps) MFS = Maximum Fuse Size 5-5

Electrical Data - Air Cooled "DAHU / DRCU Model OHS-048-DAHU OHS-072-DAHU OHS-084-DAHU OHS-120-DAHU FLA FLA FLA FLA COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60 N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 3.5 4.4 15 5.3 6.6 15 6.9 8.6 15 8.7 10.9 15 460/3/60 2.0 2.5 15 2.9 3.6 15 3.7 4.6 15 4.6 5.8 15 COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60 N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 29.7 37.2 40 31.5 39.4 45 33.1 41.4 45 34.9 43.7 45 460/3/60 14.6 18.2 20 15.5 19.3 25 16.3 20.3 25 17.2 21.4 25 COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60 N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 19.9 24.9 25 19.5 24.4 30 21.1 26.4 30 22.9 28.6 30 460/3/60 9.4 11.8 15 9.3 11.6 15 10.1 12.6 15 11.0 13.8 15 COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60 N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 29.7 37.2 40 31.5 39.4 45 33.1 41.4 45 34.9 43.7 45 460/3/60 14.6 18.2 20 15.5 19.3 25 16.3 20.3 25 17.2 21.4 25 COOLING with ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60 N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 46.1 57.7 60 45.7 57.2 60 47.3 59.2 60 49.1 61.4 70 460/3/60 22.0 27.4 30 21.9 27.3 30 22.7 28.3 30 23.6 29.4 30 Electrical Data - Air Cooled ("DAHU / DRCU") (*) Current Draws are given in the following order: FLA FLA = Full Load Amps MCA = Minimum Circuit Amps (wire size amps) MFS = Maximum Fuse Size 5-6

Electrical Data - Free-Cooling & Alternate Water Source Electrical Data - Free-Cooling & Alternate Water Source Model OHS-012-HAR, HW, & HG - AWS or FC OHS-018-HAR, HW, & HG - AWS or FC OHS-024-HAR, HW, & HG - AWS or FC FLA (OEM rated) FLA (OEM rated) FLA (OEM rated) HAR HW HG HAR HW HG HAR HW HG COOLING ONLY, with or without Hot Water or Steam Reheat 208/1/60 9.1 8.3 9.3 11.8 15 10.7 9.1 11.2 15.1 20 14.1 12.1 14.7 21.7 30 277/1/60 N/A N/A N/A 208/3/60 N/A N/A 8.7 7.6 9.0 12.9 20 460/3/60 N/A N/A 4.6 4.1 4.8 6.7 15 COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60 31.8 31.0 32.0 40.2 45 33.4 31.8 33.9 43.5 45 36.8 34.8 37.4 50.1 60 277/1/60 N/A N/A N/A 208/3/60 N/A N/A 21.8 20.7 22.1 29.3 30 460/3/60 N/A N/A 10.9 10.3 11.0 14.5 15 COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60 17.3 16.5 17.5 20.0 25 18.9 17.3 19.4 23.3 30 22.3 20.3 22.9 29.9 40 277/1/60 N/A N/A N/A 208/3/60 N/A N/A 16.9 15.8 17.2 21.1 25 460/3/60 N/A N/A 8.3 7.8 8.5 10.4 15 COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60 25.7 25.7 25.7 32.2 35 26.2 26.2 26.2 32.8 35 27.4 27.4 27.4 34.3 35 277/1/60 N/A N/A N/A 208/3/60 N/A N/A 15.2 15.2 15.2 19 20 460/3/60 N/A N/A 7.6 7.6 7.6 9.5 15 COOLING and ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60 33.9 33.9 33.9 42.4 45 34.4 34.4 34.4 43.5 45 36.8 35.6 37.4 50.1 60 Air Technology Systems, I 277/1/60 N/A N/A N/A 208/3/60 N/A N/A 23.4 23.4 23.4 29.3 30 460/3/60 N/A N/A 11.3 11.3 11.3 14.5 15 MCA MFS (*) Current Draws are given in the following order: FLA FLA = Full Load Amps MCA = Minimum Circuit Amps (wire size amps) MFS = Maximum Fuse Size OHS-032-HAR, HW, & HG - AWS or FC OHS-040-HAR, HW, & HG - AWS or FC OHS-048-AR, W, & G - AWS or FC OHS-060 AR, W, & G - AWS or FC Model FLA (OEM rated) FLA (OEM rated) FLA (OEM rated) FLA (OEM rated) HAR HW HG HAR HW HG AR W G AR W G COOLING ONLY, with or without Hot Water or Steam Reheat 208/1/60 17.2 14.7 17.9 25.2 40 18.5 15.9 19.3 28.0 45 N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 10.4 9.2 10.8 15.5 25 12.2 11.0 12.6 17.8 25 18.5 16.4 19.2 25.8 40 21.5 19.1 22.3 32.8 50 460/3/60 5.5 4.9 5.7 8.1 15 6.4 5.8 6.6 9.1 15 9.4 8.1 9.8 13.5 20 11.0 9.8 11.4 16.2 25 COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60 39.9 37.4 40.6 53.6 60 41.2 38.6 42.0 56.4 60 N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 23.5 22.3 23.9 31.9 35 25.3 24.1 25.7 34.2 40 44.7 42.6 45.4 58.6 60 47.7 45.3 48.5 65.6 70 460/3/60 11.7 11.1 11.9 15.9 20 12.6 12.0 12.8 17.0 20 22.0 20.7 22.4 28.8 30 23.6 22.4 24.0 31.9 35 COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60 25.4 22.9 26.1 33.4 45 26.7 24.1 27.5 36.2 50 N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 18.6 17.4 19.0 23.7 30 20.4 19.2 20.8 26.0 35 34.9 32.8 35.6 42.2 50 37.9 35.5 38.7 49.2 60 460/3/60 9.2 8.6 9.4 11.8 15 10.1 9.5 10.3 12.8 15 16.8 15.5 17.2 20.6 25 18.4 17.2 18.8 23.6 30 COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60 27.4 27.4 27.4 34.3 40 28.3 28.3 28.3 35.4 45 N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 15.2 15.2 15.2 19.0 25 16.6 16.6 16.6 20.8 25 31.5 31.5 31.5 39.4 40 33.1 33.1 33.1 41.4 50 460/3/60 7.6 7.6 7.6 9.5 15 8.3 8.3 8.3 10.3 15 15.5 15.5 15.5 19.3 20 16.3 16.3 16.3 20.3 25 COOLING and ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60 39.9 37.4 40.6 53.6 60 41.2 38.6 42.0 56.4 60 N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 23.5 23.4 23.9 31.9 35 25.3 24.8 25.7 34.2 40 47.9 47.9 47.9 59.9 60 49.5 49.5 49.5 65.6 70 460/3/60 11.7 11.3 11.9 15.9 20 12.6 12.0 12.8 17.0 20 22.9 22.9 22.9 28.8 30 23.7 23.7 24.0 31.9 35 5-7

Electrical Data - Free-Cooling & Alternate Water Source OHS-048-DAR, DW, & DG - AWS or FC OHS-072-DAR, DW, & DG - AWS or FC OHS-084-DAR, DW, & DG - AWS or FC OHS-120-DAR, DW, & DG - AWS or FC Model FLA (OEM rated) FLA (OEM rated) FLA (OEM rated) FLA (OEM rated) DAR DW DG DAR DW DG DAR DW DG DAR DW DG COOLING ONLY, with or without Hot Water or Steam Reheat 208/1/60 N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 17.1 14.9 17.7 23.3 30 22.7 20.3 23.5 31.0 40 29.3 25.7 30.5 40.7 50 37.9 33.1 39.5 55.3 70 460/3/60 8.8 7.7 9.1 11.9 15 11.6 10.4 12.0 15.7 20 14.9 13.1 15.5 20.6 25 19.2 16.8 20.0 27.1 35 COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60 N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 36.7 35.6 37.0 47.5 50 40.2 39.0 40.6 52.4 60 44.3 42.5 44.9 58.5 60 49.5 47.1 50.3 67.4 80 460/3/60 18.1 17.5 18.2 23.3 25 19.8 19.2 20.0 25.7 30 21.9 21.0 22.2 28.8 30 24.5 23.3 24.9 32.8 35 COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60 N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 33.5 31.3 34.1 39.7 40 36.9 34.5 37.7 45.2 50 43.5 39.9 44.7 54.9 60 52.1 47.3 53.7 69.5 90 460/3/60 16.2 15.1 16.5 19.3 20 18.0 16.8 18.4 22.1 25 21.3 19.5 21.9 27.0 30 25.6 23.2 26.4 33.5 40 COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60 N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 30.1 30.1 34.4 37.7 40 31.5 31.5 42.4 39.4 40 33.1 33.1 33.1 41.4 50 37.9 34.9 39.5 55.3 70 460/3/60 14.8 14.8 16.9 18.4 20 15.5 15.5 21.4 19.3 20 16.3 16.3 16.3 20.6 25 19.2 17.2 20.0 27.1 35 COOLING and ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60 N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 46.5 46.5 46.5 58.2 60 45.7 45.7 57.2 57.2 60 47.3 47.3 47.3 59.2 60 52.1 49.1 53.7 69.5 90 460/3/60 22.2 22.2 22.2 27.7 30 21.9 21.9 28.3 27.3 30 22.7 22.7 22.7 28.8 30 25.6 23.6 26.4 33.5 40 Dual Compressor Systems with C-Tech-10 Microprocessor (see Note-1) OHS-048-DAR, DW, & DG - AWS or FC OHS-072-DAR, DW, & DG - AWS or FC OHS-084-DAR, DW, & DG - AWS or FC OHS-120-DAR, DW, & DG -AWS or FC Model FLA (OEM rated) FLA (OEM rated) FLA (OEM rated) FLA (OEM rated) DAR DW DG DAR DW DG DAR DW DG DAR DW DG COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60 N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 43.3 41.1 43.9 56.1 60 48.9 46.5 49.7 63.8 70 55.5 51.9 56.7 73.5 80 64.1 59.3 65.7 88.1 100 460/3/60 21.4 20.3 21.7 27.6 30 24.2 23.0 24.6 31.4 35 27.5 25.7 28.1 36.3 40 31.8 29.4 32.6 42.8 45 COOLING and ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60 N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A 208/3/60 46.5 46.5 46.5 58.2 60 48.9 46.5 68.6 63.8 70 55.5 51.9 56.7 73.5 80 64.1 59.3 65.7 88.1 100 460/3/60 22.2 22.2 22.2 27.7 30 24.2 23.0 34.0 31.4 35 27.5 25.7 58.1 36.3 40 31.8 29.4 32.6 42.8 45 Electrical Data - Free-Cooling & Alternate Water Source Note-1: Dual compressor systems incorporating C-Tech-10 controls provide 2(two) compressor stages of Cooling and 2(two) compressor stages of Dehumidification. The A-Tech-1.2 and A-Tech-20 controls provide 2(two) compressor stages of Cooling and 1(one) compressor stage of Dehumidification. Therefore, electrical data for dual compressor systems with dehumidification mode (reheat) is controller dependent as shown above. (*) Current Draws are given in the following order: FLA FLA = Full Load Amps MCA = Minimum Circuit Amps (wire size amps) MFS = Maximum Fuse Size 5-8

Electrical Data - Chilled Water Sysetms Electrical Data - Chilled Water Systems Model OHS-012-C OHS-018-C OHS-024-C OHS-032-C OHS-040-C FLA FLA FLA FLA FLA COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60 2.7 3.4 15 2.7 3.4 15 2.7 3.4 15 3.4 4.3 15 3.8 4.8 15 277/1/60 2.5 3.1 15 2.5 3.1 15 2.5 3.1 15 2.7 3.4 15 3.9 4.9 15 208/3/60 2.7 3.4 15 2.7 3.4 15 2.7 3.4 15 3.4 4.3 15 3.8 4.8 15 460/3/60 1.6 2.0 15 1.6 2.0 15 1.6 2.0 15 1.6 2.0 15 3.0 3.8 15 COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60 25.4 31.8 35 25.4 31.8 35 25.4 31.8 35 26.1 32.7 35 26.5 33.2 35 277/1/60 20.6 25.7 30 20.6 25.7 30 20.6 25.7 30 20.8 25.9 30 22.0 27.4 30 208/3/60 15.8 19.8 20 15.8 19.8 20 15.8 19.8 20 16.5 20.7 25 16.9 21.2 25 460/3/60 7.9 9.8 15 7.9 9.8 15 7.9 9.8 15 7.9 9.8 15 9.3 11.6 15 COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60 10.9 13.6 15 10.8 13.6 15 10.9 13.6 15 11.6 14.5 15 12.0 15.0 20 277/1/60 8.7 10.9 15 8.7 10.9 15 8.7 10.9 15 8.9 11.1 15 10.1 12.6 15 208/3/60 10.9 13.6 15 10.9 13.6 15 10.9 13.6 15 11.6 14.5 15 12.0 15.0 20 460/3/60 5.3 6.6 15 5.3 6.6 15 5.3 6.6 15 5.3 6.6 15 6.7 8.4 15 COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60 25.4 31.8 35 25.4 31.8 35 25.4 31.8 35 26.1 32.7 35 26.5 33.2 35 277/1/60 20.6 25.7 30 20.6 25.7 30 20.6 25.7 30 20.8 25.9 30 22.0 27.4 30 208/3/60 15.8 19.8 20 15.8 19.8 20 15.8 19.8 20 16.5 20.7 25 16.9 21.2 25 460/3/60 7.9 9.8 15 7.9 9.8 15 7.9 9.8 15 7.9 9.8 15 9.3 11.6 15 COOLING with ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60 33.6 42.0 45 33.6 42.0 45 33.6 42.0 45 34.3 42.9 45 34.7 43.4 45 277/1/60 26.8 33.4 35 26.8 33.4 35 26.8 33.4 35 27.0 33.7 35 28.2 35.2 40 Air Technology Systems, I 208/3/60 24.0 30.0 30 24.0 30.0 30 24.0 30.0 30 24.7 30.9 35 25.1 31.4 35 460/3/60 11.6 14.5 15 11.6 14.5 15 11.6 14.5 15 11.6 14.5 15 13.0 16.2 20 Model OHS-048-C OHS-060-C OHS-072-C OHS-084-C OHS-120-C FLA FLA FLA FLA FLA COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60 N/A N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A N/A 208/3/60 3.9 4.9 15 5.3 6.6 15 5.3 6.6 15 6.9 8.6 15 8.7 10.9 15 460/3/60 2.2 2.8 15 2.9 3.6 15 2.9 3.6 15 3.7 4.6 15 4.6 5.8 15 COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60 N/A N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A N/A 208/3/60 30.1 37.7 40 31.5 39.4 40 31.5 39.4 45 33.1 41.4 45 34.9 43.7 45 460/3/60 14.8 18.4 20 15.5 19.3 20 15.5 19.3 25 16.3 20.3 25 17.2 21.4 25 COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60 N/A N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A N/A 208/3/60 20.3 25.4 30 21.7 27.1 30 19.5 24.4 30 21.1 26.4 30 22.9 28.6 30 460/3/60 9.6 12.0 15 10.3 12.9 15 9.3 11.6 15 10.1 12.6 15 11.0 13.8 15 COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60 N/A N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A N/A 208/3/60 30.1 37.7 40 31.5 39.4 40 31.5 39.4 45 33.1 41.4 45 34.9 43.7 45 460/3/60 14.8 18.4 20 15.5 19.3 20 15.5 19.3 25 16.3 20.3 25 17.2 21.4 25 COOLING with ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60 N/A N/A N/A N/A N/A 277/1/60 N/A N/A N/A N/A N/A 208/3/60 46.5 58.2 60 47.9 59.9 60 45.7 57.2 60 47.3 59.2 60 49.1 61.4 70 460/3/60 22.2 27.7 30 22.9 28.6 30 21.9 27.3 30 22.7 28.3 30 23.6 29.4 30 (*) Current Draws are given in the following order: FLA FLA = Full Load Amps MCA = Minimum Circuit Amps (wire size amps) MFS = Maximum Fuse Size 5-9

Dimensional Data - Standard "OHS" Configurations (Drwg. #) "Index" MODEL TYPE...page Physical Data / Connection Sizes Unit Net Weights (lbs) Table... 6-2 DX - Refrigerant Connection Sizes... 6-3 Source Water/Glycol Connection Sizes... 6-3 Chilled Water Connection Sizes... 6-3 Air Cooled Systems OHS-012/032-AS (1) "Spot Cooler Configuration"... 6-4 (2) "Ducted Configuration"... 6-4 OHS-040-AS (3) "Spot Cooler Configuration"... 6-4 (4) "Ducted Configuration"... 6-5 OHS-012/032-AR (5) "Spot Cooler Configuration"... 6-5 (6) "Ducted Configuration"... 6-5 OHS-040-AR (7) "Spot Cooler Configuration"... 6-6 (8) "Ducted Configuration (direct-drive)"... 6-6 (8) OHS-012/040-HAR (Ducted, belt-drive)... 6-6 (9) OHS-040/060-AR... 6-6 (10) OHS-048/084-DAR... 6-7 (11) OHS-120-DAR... 6-7 Water / Glycol Cooled Systems OHS-012/032-W/G (18) "Spot Cooler Configuration"... 6-10 (19) "Ducted Configuration"... 6-10 OHS-040-W/G (20) "Spot Cooler Configuration"... 6-10 (21) "Ducted Configuration (direct-drive)"... 6-11 OHS-012/040-HW/HG & FC (21) "Ducted Configuration (belt-drive)"... 6-11 (22) OHS-048/060-W/G & FC... 6-11 (23) OHS-048/084-DW/DG & FC... 6-12 (24) OHS-120-DW/DG... 6-12 (25) OHS-120-DW/DG-FC... 6-13 Chilled Water Systems OHS-012/040-C (26) "Spot Cooler Configuration"... 6-14 (27) "Ducted Configuration"... 6-14 OHS-012/040-HC (28) "Belt-Driven Ducted Configuration"... 6-14 (29) OHS-048/060-C... 6-15 (30) OHS-072/084-C... 6-15 (31) OHS-120-C... 6-15 Dimensional Data - Index DX - Air Handling Units OHS-012/040-AHU (12) "Spot Cooler Configuration"... 6-8 (13) "Ducted Configuration"... 6-8 OHS-012/040-HAHU (14) "Belt-Driven Ducted Configuration"... 6-8 (15) OHS-048/060-AHU... 6-9 (16) OHS-048/084-DAHU... 6-9 (17) OHS-120-DAHU... 6-9 6-1

Physical Data - Unit Weights (lbs.) Dimensional Data - Physical Data (Unit Weight lbs.) Approximate Unit Physical Weight (Cooling Only! Please see notes, given in lbs.) OHS-( )-( ) 012 018 024 032 040 048 060 072 084 120 OHS-( )-AS 210 215 220 255 265 - - - - - OHS-( )-AR 160 165 170 205 215 370 380 - - - OHS-( )-HAR 185 190 195 230 240 - - - - - OHS-( )-AHU 120 120 120 155 165 270 280 - - - OHS-( )-HAHU 135 140 145 180 190 - - - - - OHS-( )-DAR - - - - - 420-450 510 580 OHS-( )-DAHU - - - - - 320-350 410 480 OHS-( )-W 180 200 210 245 260 395 405 - - - OHS-( )-HW 205 225 235 265 285 - - - - - OHS-( )-DW - - - - - 440-470 550 625 OHS-( )-G 180 200 210 245 260 395 405 - - - OHS-( )-HG 205 225 235 265 285 - - - - - OHS-( )-DG - - - - - 440-470 550 625 OHS-( )-C 120 125 125 160 170 280 290 365 415 495 OHS-( )-HC 140 145 150 185 190 - - - - - OHS-( )-( )-FC 245 265 275 300 310 500 510 570 660 745 Air Technology Systems, I OHS-( )-( )-AWS 225 230 235 270 280 460 470 550 610 705 Table Legend: Note-1: ----- means unit not available in this configuration and/or size. Note-2: Model "OHS" weights shown above are for Cooling Only Evaporator units without receivers. If Humidity Options (steam humidifier; electric, hot gas, hot water or steam reheat) and/or -30 F flooded receiver(s) are applicable, please add the following approximate weights to the Cooling Only model "OHS" weights shown above: Model Sizes Features/Options 012/040 048/060 048/120-D( ) Adding Features: Net Additions Steam Humidifier + 20 lbs + 25 lbs + 25 lbs Electric Reheat + 15 lbs + 25 lbs + 25 lbs Hot Gas Reheat + 30 lbs + 35 lbs + 45 lbs Hot Water Reheat + 30 lbs + 35 lbs + 45 lbs Steam Reheat + 30 lbs + 35 lbs + 45 lbs -30 Flooded + 30 lbs + 50 lbs + 100 lbs Condensate Pump + 10 lbs + 10 lbs + 10 lbs 6-2

Piping Connection Sizes Refrigerant Piping Connection Sizes - Single Compressor / Circuit Systems Model OHS-012-( ) OHS-018-( ) OHS-024-( ) OHS-032-( ) OHS-040-( ) OHS-048-( ) OHS-060-( ) "A" "B' "C" "A" "B' "C" "A" "B' "C" "A" "B' "C" "A" "B' "C" "A" "B' "C" "A" "B' "C" OHS-( )-AR ---- 3/8 1/2 ---- 3/8 1/2 ---- 3/8 5/8 ---- 1/2 5/8 ---- 1/2 7/8 ---- 1/2 7/8 ---- 1/2 7/8 OHS-( )-AHU 5/8 3/8 ---- 3/4 3/8 ---- 3/4 3/8 ---- 3/4 1/2 ---- 7/8 1/2 ---- 7/8 1/2 ---- 7/8 1/2 ---- Refrigerant Piping connection Sizes - Dual Compressor / Circuit Systems Sizes giver are per circuit OD Model OHS-048-( ) OHS-072-( ) OHS-084-( ) OHS-120-( ) "A" "B' "C" "A" "B' "C" "A" "B' "C" "A" "B' "C" OHS-( )-DAR ---- 3/8 5/8 ---- 1/2 5/8 ---- 1/2 7/8 ---- 1/2 7/8 OHS-( )-DAHU 3/4 3/8 ---- 7/8 1/2 ---- 7/8 1/2 ---- 7/8 1/2 ---- Source Water / Glycol Piping Connection Sizes (Single Compressor / Single Circuit Systems) Model 012 018 024 032 040 048 060 IN/OUT IN/OUT IN/OUT IN/OUT IN/OUT IN/OUT IN/OUT OHS-( )-W/G 5/8 7/8 7/8 7/8 7/8 1-1/8 1-1/8 OHS-( )-W/G-FC 5/8 5/8 5/8 7/8 7/8 1-1/8 1-1/8 Chilled Water / Alternate Water Souce Piping Connection Sizes 012 018 024 032 040 048 060 Model IN/OUT IN/OUT IN/OUT IN/OUT IN/OUT IN/OUT IN/OUT OHS-( )-C & AWS 5/8 7/8 7/8 7/8 7/8 1-1/8 1-1/8 048 072 084 120 Model IN/OUT IN/OUT IN/OUT IN/OUT OHS-( )-C & AWS 1-1/8 1-1/8 1-1/8 1-3/8 Legend: "A" = Suction Line, inches OD Copper "B" = Liquid Line, inches OD Copper "C" = Hot Gas, inches OD Copper Notes: Note-1: ----- means connection type not applicable to this unit configuration. Note-2: Dimensions shown represent the "pipe connection size" only! For information detailing the sizing of the interconnecting refrigerant and water lines, please refer to the CeilAiR Installations, Operations and Maintenance Manual. Dimensional Data - Piping Connection Sizes Legend: IN = Inlet Connection, inches OD Copper OUT = Outlet Connection, inches OD Copper 6-3

Dimensional Data - Air Cooled (SINGLE Compressor Systems) Air Cooled - SINGLE Compressor Systems (1) OHS-012 thru 032-AS Self-Contained, Air Cooled ("Ductless" Spot Cooler) DIMENSIONAL DATA MODEL "A" "B" "C" "D" "E" "F" OHS-012, 018,& 024-AS 20.38" 15.5" 5.75" 18.0" 19.75" 16.13" OHS-032-AS 26.38" 21.5" 10.88" 23.0" 15.63" 19.75" Air Technology Systems, I (3) OHS-040-AS Self-Contained, Air Cooled ("Ductless" Spot Cooler) DIMENSIONAL DATA MODEL "A" "B" "C" "D" OHS-012, 018,& 024-AS 20.38" 15.5" 5.50" 18.0" OHS-032-AS 26.38" 21.5" 10.50" 23.0" (2) OHS-012 thru 032-AS Self-Contained, Air Cooled ("Ducted" Evap - Direct Driven) 6-4

Air Cooled - SINGLE Compressor Systems (4) OHS-040-HAS Self-Contained, Air Cooled ("Ducted" Version - Direct Driven) DIMENSIONAL DATA MODEL "A" OHS-012, 018,& 024-AR 20.38" OHS-032-AR 26.38" (6) OHS-012 thru 032-AR Remote Air Cooled, Evaporator ("Ducted" Version - Direct Driven) (5) OHS-012 thru 032-AR Remote Air Cooled, Evaporator ("Ductless" Spot Cooler) DIMENSIONAL DATA MODEL "A" "B" "D" "F" OHS-012, 018,& 024-AR 20.38" 15.5" 19.75" 16.13" OHS-032-AR 26.38" 21.5" 15.63" 19.75" Dimensional Data - Air Cooled (SINGLE Compressor Systems) 6-5

Dimensional Data - Air Cooled (SINGLE Compressor Systems) Air Cooled - SINGLE Compressor Systems (7) OHS-040-AR Remote Air Cooled, Evaporator ("Ductless" Spot Cooler) DIMENSIONAL DATA MODEL "A" "B" "C" "L" "M" OHS-012, 018, & 024-HAR 20.0" 16.0" OHS-032- & 040-HAR 24.0" 20.0" OHS-040-HAR @ 0.3" esp (direct drive blower) Air Technology Systems, I Note: Consult your local Sales Representative for blower outlet dimensional data for "High-Static Pressure Blower Option". (9) OHS-040 thru 060-AR Remote Air Cooled, Evaporator (Ducted Only!) see note see note see note see note see note see note 24.0" 20.0" 6.62" 11.38" 10.5" (8) OHS-012 thru 040-HAR Remote Air Cooled, Evaporator "H-Series Ducted Version" (040 - Direct Driven) & (012/040 - Belt Driven) DIMENSIONAL DATA MODEL "C" "L" "M" OHS-040 & 060-AR 6.62" 11.38" 13.12" 6-6

Air Cooled - DUAL Compressor Systems (10) OHS-048 thru 084-DAR Remote Air Cooled, Evaporator (DUAL Compressors) DIMENSIONAL DATA MODEL "C" "L" "M" OHS-120-DAR 7.25" 13.44" 15.62" DIMENSIONAL DATA MODEL "C" "L" "M" OHS-048-DAR 6.62" 11.38" 13.12" OHS-072 & 084-DAR 7.62" 13.44" 15.62" (11) OHS-120-DAR Remote Air Cooled, Evaporator (DUAL Compressors) Dimensional Data - Air Cooled (DUAL Compressor Systems) 6-7

Dimensional Data - DX - Air Handling Units DX - Air Handling Units (12) OHS-012 thru 040-AHU DX - Air Handling Unit ("Ductless" Spot Cooler) DIMENSIONAL DATA MODEL "A" "B" "E" "F" OHS-012, 018, & 024-AHU 20.7" 15.5" 19.88" 15.75" OHS-032 & 040-AHU 26.7" 21.5" 15.75" 19.88" DIMENSIONAL DATA (13) OHS-012 thru 040-AHU DX - Air Handling Unit ("Ducted Version" - Direct Driven) Air Technology Systems, I MODEL "A" OHS-012, 018, & 024-AHU 20.7" OHS-032 & 040-AR 26.7" (14) OHS-012 thru 040-HAHU DX - "H-Series", Air Handling Unit ("Ducted Version" - Belt Driven) DIMENSIONAL DATA MODEL "A" "E" "F" "C" "L" "M" OHS-012, 018, & 024-AHU 20.0" 19.75" 15.63" see note see note see note OHS-032 & 040-AHU 24.0" 19.75" 19.75" see note see note see note Note: Consult your local Sales Representative for blower outlet dimensional data for "High-Static Pressure Blower Option". 6-8

DX - Air Handling Units (15) OHS-048 thru 060-AHU DX - Air Handling Unit (Ducted Only!) MODEL DIMENSIONAL DATA Std CFM @ 0.5" esp "C" "L" "M" OHS-048-DAHU 6.62" 11.38" 13.12" OHS-072 & 084-AHU 7.62" 13.44" 15.62" MODEL DIMENSIONAL DATA Std CFM @ 0.5" esp "C" "L" "M" OHS-048 & 060-AHU 6.62" 11.38" 13.12" (16) OHS-048 thru 084-DAHU DUAL Circuit, DX - Air Handling Unit (Ducted Only!) Dimensional Data - DX - Air Handling Units (17) OHS-120-DAHU DUAL Circuit, DX - Air Handling Unit (Ducted Only!) DIMENSIONAL DATA Std CFM @ 0.5" esp MODEL "C" "L" "M" OHS-120-DAHU 7.38" 13.5" 15.69" 6-9

Dimensional Data - Water / Glycol Cooled (SINGLE Compressor Systems) Water / Glycol Cooled - SINGLE Compressor Systems (18) OHS-012 thru 032-W / G Self-Contained, Water/Glycol Cooled ("Ductless" Spot Cooler) DIMENSIONAL DATA MODEL "A" "B" "E" "F" OHS-012, 018, & 024-W/G 20.4" 15.5" 19.75" 16.13" OHS-032-W/G 26.4" 21.5" 15.63" 19.75" (19) OHS-012 thru 032-W / G Self-Contained, Water/Glycol Cooled ("Ducted Version" - Direct Drive) Air Technology Systems, I (20) OHS-040-W / G Self-Contained, Water/Glycol Cooled ("Ductless" Spot Cooler) DIMENSIONAL DATA MODEL "A" OHS-012, 018, & 024 W/G 20.4" OHS-032-W/G 26.4" 6-10

Water / Glycol Cooled - SINGLE Compressor Systems (21) OHS-012 thru 040-HW / HG & optional OHS-012 thru 040-HW/HG-FC "H-Series Ducted Version" (040 - Direct Driven) & (012/040 - Belt Driven) DIMENSIONAL DATA Std CFS @ 0.5" esp MODEL "C" "L" "M" OHS-048, & 060-W/G 6.62" 11.38" 13.12" OHS-048, & 060-W/G-FC see note see note see note Note: Consult your local Sales Representative for blower outlet dimensional data for "High-Static Pressure Blower Option". DIMENSIONAL DATA MODEL "A" "B" "C" "L" "M" OHS-012, 018, & 024-HW/HG (& HW/HG-FC) OHS-032, & 040-HW/HG (& HW/HG-FC) OHS-040-HW/G @ 0.3" esp (Direct-Drive Blower) 20.0" 16.0" see note see note see note 24.0" 20.0" see note see note see note 24.0" 20.0" 6.62" 11.38" 10.5" Note: Consult your local Sales Representative for blower outlet dimensional data for "High-Static Pressure Blower Option". (22) OHS-048 thru 060-W / G & optional OHS-048 thru 060-W/G-FC Self-Contained, Water/Glycol Cooled (Ducted Only!) Dimensional Data - Water / Glycol Cooled (SINGLE Compressor Systems) 6-11

Dimensional Data - Water / Glycol Cooled (DUAL Compressor Systems) Water / Glycol Cooled - DUAL Compressor Systems (23) OHS-048 thru 084-DW / DG & optional OHS-048 thru 084-DW/DG-FC Self-Contained, Water/Glycol Cooled (DUAL Compressors) Air Technology Systems, I MODEL DIMENSIONAL DATA Std CFS @ 0.5" esp "C" "L" "M" OHS-120-DW/DG 7.25" 13.5" 15.69" MODEL DIMENSIONAL DATA Std CFS @ 0.5" esp "C" "L" "M" OHS-048-DW/DG 6.62" 11.38" 13.19" OHS-072-084-DW/DG 7.62" 13.5" 15.69" OHS-048/084-DW/DG-FC see note see note see note Note: Consult your local Sales Representative for blower outlet dimensional data for "High-Static Pressure Blower Option". (24) OHS-120-DW / DG Self-Contained, Water/Glycol Cooled (DUAL Compressors) 6-12

Water / Glycol Cooled - "10-ton Free-Cooling Version" (25) OHS-120-DW / DG-FC "FREE-COOLING Version" Self-Contained, Water/Glycol Cooled (DUAL Compressors) DIMENSIONAL DATA Std CFS @ 0.5" esp MODEL "C" "L" "M" OHS-120-DW/DG-FC 7.62" 13.5" 15.69" Dimensional Data - Water/Glycol Cooled (Optional "Free-Cooling") 6-13

Dimensional Data - Chilled Water Systems (1 to 3 Ton Systems) Chilled Water Systems - 1 thru 3 Ton Systems (26) OHS-012 thru 040-C Chilled Water System ("Ductless" Spot Cooler) DIMENSIONAL DATA MODEL "A" "B" "E" "F" OHS-012, 018, & 024-C 20.4" 15.5" 19.75" 15.63" OHS-032, & 040-C 26.4" 21.5" 15.63" 19.75" (27) OHS-012 thru 040-C Chilled Water System ("Ducted Version" - Direct Driven) Air Technology Systems, I (28) OHS-012 thru 040-HC "H-Series", Chilled Water System ("Ducted Version" - Belt Driven) DIMENSIONAL DATA DIMENSIONAL DATA MODEL "A" OHS-012-, 018, & 024-C 20.7" OHS-032 & 040-C 26.7" MODEL "A" "E" "F" "C" "L" "M" OHS-012, 018, & 024-HC 20.0" 19.75" 15.63" SEE NOTE SEE NOTE SEE NOTE OHS-032, & 040-HC 24.0" 19.75" 19.75" SEE NOTE SEE NOTE SEE NOTE Note: Consult your local Sales Representative for blower outlet dimensional data for "High-Static Pressure Blower Option". 6-14

Chilled Water Systems - 4 thru 10 Ton Systems (29) OHS-048 thru 060-C Chilled Water System ("Ducted" - Belt Driven) MODEL DIMENSIONAL DATA Std CFS @ 0.5" esp "C" "L" "M" OHS-072 & 084-C 7.62" 13.5" 15.69" (31) OHS-120-C Chilled Water System ("Ducted" - Belt Driven) MODEL DIMENSIONAL DATA Std CFS @ 0.5" esp "C" "L" "M" OHS-048 & 060-C 6.62" 11.38" 13.12" (30) OHS-072 thru 084-C Chilled Water System ("Ducted" - Belt Driven) MODEL DIMENSIONAL DATA Std CFS @ 0.5" esp "C" "L" "M" OHS-120-C 7.38" 13.5" 15.7" Dimensional Data - Chilled Water Systems (4 to 10 Ton Systems) 6-15

Air Technology www.stulz-ats.com Systems, I the greener way of cooling your data center. 1572 Tilco Drive, Frederick, Maryland 21704 Phone: 301.620.2033, Fax: 301.662.5487 E-mail: info@stulz-ats.com This document was printed on recycled paper, with ecosmart tm environmentally responsible ink products. Registered ISO9001 Quality System ISO-9001:2001 Quality Registered Copyright, September 2008 QE-OHS0023 Rev - Specifications subject to change without notice.