THE WALLMOUNT STEP CAPACITY AIR CONDITIONERS Integrated Part Load Value (IPLV) Efficiency Up To. BTU/WATT WAS, WAS, WAS to Ton (,0 to,00 Btuh) Right Side Control Panel 0Hz GREEN REFRIGERANT RA The Bard "WAS" Series is the wld's most energy efficient wall mounted air conditioner featuring a multistep capacity compress with environmentally friendly nonozone depleting refrigerant. The Bard WallMount Air Conditioner is a self contained energy efficient system, which is designed to offer maximum indo comft at a minimal cost without using valuable indo flo space outside ground space. This unit is the ideal product f versatile applications such as: new construction, modular offices, school modernization, telecommunication structures, ptable structures crectional facilities. Facty field installed accessies are available to meet specific job requirements. Engineered Features MultiCapacity TwoStage: Simple thermostatic control seamlessly stages the compress and indo airflow rate between high and low capacity operations without cycling the compress. This helps to maximize comft, humidity control, energy efficiency and overall reduction in compress cycling f improved system life. MultiStep Capacity Compress: Copeland stepcapacity scroll compresss are designed f increased efficiency, quieter operation and improved reliability f longer life. RA Refrigerant: Designed with RA (HFC) nonozone depleting refrigerant in compliance with the 0 Montreal protocol and EPA requirements. ECM Indo Blower Mot: Features a variable speed mot providing superhigh efficiency, low sound levels and softstart capabilities. The mot is selfadjusting to provide the proper airflow rate f the staged capacity, and f higher static pressure in ducted installations without user adjustment wiring changes. Aluminum Finned Copper Coils: Grooved tubing and enhanced louvered fin f maximum heat transfer and energy efficiency. Twin Blowers: Move air quietly. All models feature variable speed blower mots providing automatic airflow adjustment f high static free blow (nonducted) operation at a very low sound level. Mot overload protection is standard on all models. Indo Blower Time Delay: The unit is shipped with a standard minute blower delay (upon satisfaction of the thermostat) to further maximize operating efficiency. This time delay can be easily defeated by disconnecting a single wire where desired to meet fire damper other requirements. Start Kit: A PTCR compress start assist (Positive Temperature Coefficient Resist) is standard on all A singlephase models to increase system reliability. This helps to insure compress starts at adverse conditions by increasing the compress starting tque. Compress Control Module: Builtin offdelay timer adjustable from seconds to minutes. minute ondelay if power interrupt. 0second bypass f low pressure control, and both soft and manual lockouts f high and low pressure controls. Alarm output f alarm relay. High & Low Pressure Switches are AutoReset Builtin lockout circuit resets from the room thermostat. Provides commercial quality protection to the compress. Crankcase Heaters: Facty installed crankcase heaters are standard on all models. This helps to insure ease of start at low temperatures and improves compress life. Phase Rotation Monit: Standard on all phase scroll compresss. Protects against reverse rotation if power supply is not properly connected. Galvanized 0 Gauge Zinc Coated Steel Cabinet: Cleaned, rinsed, sealed and dried befe the polyurethane primer is applied. The cabinet is handsomely finished with a baked on textured enamel which allows it to withstand 00 hours of salt spray exposure. Galvanized Gauge Zinc Coated Unit Base: The unit base is treated with the same paint coatings as the cabinet above, insuring years of service without visible crosion. Drain Pan: The evapat drain pan is constructed of stainless steel material f maximum crosion resistance. Electrical Components: Are easily accessible f routine inspection and maintenance through a right side, service panel opening. Features a lockable, hinged access cover to the circuit breaker toggle disconnect switch. Electric Heat Strips: Features line break automatic limit and dual backup safety controls. Heater packages can be facty field installed f all models. TwoInch, Pleated Disposable Air Filters: Are standard equipment. Condenser Fan and Mot Shroud Assembly: Slides out f easy access. Circuit Breakers/Toggle Disconnect: Standard on all versions of single (/0 volt) and three phase (/0 volt) equipment. Toggle disconnects are standard on all versions of three phase ( volt) equipment. Slope Top: Standard feature f water runoff. Full Length Mounting Brackets: Built into cabinet f improved appearance and easy installation. NOTE: Bottom mounting bracket included to assist in installation. Top Rain Flashing: Standard feature on all models. Fm No. S70 Supersedes S7 Page of
Ventilation System Packages All packages are designed to meet your specific ventilation requirements utilizing one of four ventilation options f the product. The ventilation package is mounted within the unit eliminating the need f an exteri mounted hood damper assembly on the unit. All assemblies can be facty installed, installed in the field at time of installation as a retrofit system after installation.!standard Blank off Plate (BOP)!Optional Commercial Room Ventilat (CRVMP)!Optional Economizer (EIFM)!Optional Energy Recovery Ventilat (WERV) Capacity and Efficiency Ratings MODELS WAS WAS WAS Cooling Capacity BTUH, nd Stage Operation EER nd Stage Operation Rated CFM (Wet Coil) Cooling Capacity BTUH, st Stage Operation EER st Stage Operation Rated CFM (Wet Coil),0. 0,000. 00 IPLV... Certified in accdance with ARI Standard 000 f single package vertical units. Integrated Part Load Value BTU/WATT efficiency. All capacity, efficiency and cost of operation infmation is based on operation with fresh air cover plate. Cover plate is recommended f use to obtain maximum energy efficiency where ventilation air is not required.,000. 00,000.7 0,00. 700,000. 0 Specifications Ton through Ton MODELS WASA WASB WASC WASA WASB WASC WASA WASB Cooling Capacity,0,0,0,000,000,000,00,00,00 Heating Capacity See Electric Heat Tabl e Operating Voltage Range 7 7 7 7 7 7 CompressCircuit A Voltage /0 /0 /0 /0 /0 /0 Rated Load./../.../. 0./..0/. 7./.. Branch Circuit Selection Current. 7...... 7.. Lock Rot Compress Type Fan Mot & Condenser Fan Mot......... FanDIA/CFM " 700 " 700 " 700 " 00 " 00 " 00 " 00 " 00 " 00 Blower Mot & Evap. Blower MotHPRPMSPD WASC Electrical Rating0 Hz /0 /0 /0 /0 /0 /0 Fan MotHPRPMSPD /0 /0 /0 /0 /0 /0 /0 /0 /0 / Variable / Variable / Variable /Variable /Variable /Variable /Variable /Variable /Variable Blower Mot......... CFM Cooling w/filter (Wet Coil) 0 0 0 00 00 00 700 700 700 Filter Sizes (inches). 0xx 0xx 0xx 0xx 0xx 0xx 0xx 0xx 0xx Shipping Weight LBS. Fm No. S70 Supersedes S7 Page of
Ventilation System Packages Bard WallMounts are designed to provide optional ventilation packages to meet all of your ventilation and indo air quality requirements. All units are equipped with a blank off plate as the standard ventilation package. All ventilation packages can be builtin at the facty, fieldinstalled at a later date. BLANK OFF PLATE BOP STANDARD A blank off plate is installed on the inside of the service do. It covers the air inlet openings which restricts any outside air from entering the unit. The blank off plate should be utilized in applications where outside air is not required to be mixed with the conditioned air. COMMERCIAL ROOM VENTILATOR CRVMP OPTIONAL The builtin commercial room ventilat is internally mounted behind the service do and allows outside ventilation air, up to 0% of the total airflow rating of the unit, to be introduced through the air inlet openings. It includes a builtin exhaust air damper with integral bug screen. Automatic control is integrated to maintain desired ventilation air at the various supply airflows. COMMERCIAL ROOM VENTILATOR The commercial room ventilat (CRV) is a simple and innovative approach to improving the indo air quality by providing fresh air intake and exhaust capability through the CRV. The damper can be easily adjusted to control the amount of fresh air supplied into the building. The CRV can be controlled by indo blower operation field controlled based on room occupancy. The CRV is power open spring return on power loss. Complies with ASHRAE Standard.00 Ventilation f Acceptable Indo Air Quality. ECONOMIZER EIFM OPTIONAL The builtin economizer system is internally mounted behind the service do and allows outdo air to be introduced through the air inlet openings. The amount of outdo air varies in response to the system controls and settings defined by the end user. It includes a builtin exhaust air damper with integral bug screen. The economizer is designed to provide free cooling when outside air conditions are cool and dry enough to satisfy cooling requirements without running the compress. This in turn provides lower operating costs, while extending the life of the compress. ECONOMIZER Unit shown with optional Economizer Standard Features: One Piece Construction Easy to install with no mechanical linkage adjustment required. Exhaust Air Damper Built in with positive closed position. Provides exhaust air capability to prevent pressurization of tight buildings. Actuat Mot volt, power open, spring return with built in tque limiting switch. Proptioning Type Control f maximum free cooling economy and comft. Moisture Eliminat & Prefilter permanent, washable aluminum construction. Enthalpy Control adjustable to monit outdo temperature and humidity. Minimum Position Potentiometer adjustable to control minimum damper blade position f ventilation purposes. Mixed Air Sens to monit outside and return air to automatically modulate damper position. WALLMOUNT ENERGY RECOVERY VENTILATOR WERV OPTIONAL The wallmount energy recovery ventilat (WERV) is a highly innovative approach to meeting indo air quality ventilation requirements as established by ASHRAE Standard.00. The WERV allows from 00 to CFM (depending upon model) of fresh air and exhaust through the unit while maintaining superi indo comft and humidity levels. In most cases this can be accomplished without increasing equipment sizing operating costs. Heat transfer efficiency is up to 7% during summer and 7% during winter conditions. The WERV consists of a unique rotary energy recovery cassette that provides effective sensible and latent heat transfer capabilities during summer and winter conditions. Various control schemes are addressed including limiting ventilation during building occupancy only. ENERGY RECOVERY VENTILATOR The WERV is designed to be internally mounted behind the service do in the WAS model wallmount units. It can be builtin at the facty field installed as an option. (See Fm F f complete perfmance and application details. Manufactured under U.S. Patent Nos.,,7;,,7;,00,;,,;,7,0;,,. Fm No. S70 Supersedes S7 Page of
Electrical Specifications WAS WAS WAS WAS WAS WAS WAS WAS WAS Model A0Z A0 A0 A A A0 B0Z B0 B0 B C0Z C0 C0 C A0Z A0 A0 A A A0 B0Z B0 B0 B C0Z C0 C0 C A0Z A0 A0 A A A0 B0Z B0 B0 B C0Z C0 C0 C Rated Volts and Phase /0 /0 /0 /0 /0 /0 No. Field Power Circuits Minimu m Circuit Ampacity 7 Maximu m External Fuse Ckt. 0 70 0 S ingle Circuit Multiple Circui t Brkr. Fiel d Power Wire Size 7 0 0 Groun d Wire 7 7 0 70 0 0 Minimu m Circuit Ampacity Maximu m External Fuse Ckt. Brkr. Fiel d Power Wire Size Groun d Wire C kt. A C kt. B C kt. C C kt. A C kt. B C kt. C C kt. A C kt. B C kt. C C kt. A C kt. B Ckt. C 7 7 7 0 0 0 0 0 0 0 0 0 0 0 0 70 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Maximum size of the time delay fuse HACR type circuit breaker f protection of field wiring conducts. Based on 7C copper wire. All wiring must confm to the National Electrical Code and all local codes. These Minimum Circuit Ampacity values are to be used f sizing the field power conducts. Refer to the National Electrical code (latest version), Article f power conduct sizing. Caution: When me than one field power circuit is run through one conduit, the conducts must be derated. Pay special attention to note of Table regarding Ampacity Adjustment Facts when me than three () current carrying conducts are in a raceway. * Top outlet supply option is available only facty installed and only on the selected models. IMPORTANT: While this electrical data is presented as a guide, it is imptant to electrically connect properly sized fuses and conduct wires in accdance with the National Electrical Code and all local codes. Fm No. S70 Supersedes S7 Page of
Indo Blower Perfmance CFM (0.00" through 0.0" H O) Blower Only st Stage Cooling nd Stage Cooling KW Electric Heat 0 KW Electric Heat WAS 00 00 0 0 0 WAS 0 00 0 00 WAS 0 0 700 0 00 These systems contain Variable Speed ECM Mot, which maintains airflow across static range at dry and wet coil conditions. Electric Heat Table Nominal KW Kw A t V () A t 0V () A t V () At V () Ph Ph Btuh Kw Ph Ph Btuh.0. 0 0. 7,0.7. 0,7 Kw Ph Btuh Kw Ph Btuh.0. 0. 0,7.0.,. 0 7. 0,7..,.0. 0. 7,.00. 0,7.0. 0. 7,77.7. 7,0. 0.,77..,0.0. 0. 7, 7.0.,.0. 0..,...,. 0. 0,.0 7. 7,0 0.0 0. 0.,0.00 7., () These electric heaters are available in /0V units only. () These electric heaters are available in V units only. Heater Packages Field Installed Designed f adding Electric Heat to 0 KW Units Circuit Breaker Standard on /0V Models Disconnect Standard on V Models A00 Models Air Conditioner /0 Models Heater Model # EHWASA0 EHWASA0 WAS EHWASA EHWASA EHWASA0 EHWASA0 EHWASA0 WAS EHWASA EHWASA EHWASA0 EHWASA0 EHWASA0 WAS EHWASA EHWASA EHWASA0 UL Listed CUL Listed B00 Models /0 K W Heater Model # 0 0 0 EHWASB0 EHWASB0 EHWASB EHWASB0 EHWASB0 EHWASB EHWASB0 EHWASB0 EHWASB C00 Models K W Heater Model # EHWASC0 EHWASC0 EHWASC EHWASC0 EHWASC0 EHWASC EHWASC0 EHWASC0 EHWASC KW Fm No. S70 Supersedes S7 Page of
nd Stage Cooling Application Data Outdo Temperature Model WAS WAS WAS D.B./W.B. 7/ 0/7 /7 7/ 0/7 /7 7/ 0/7 /7 Cooling Capacity BTU/HR 0 o F o F 0 o F o F 70 o F 7 o F 0 o F o F 0 o F o F 0 o F o F o F o F,,7,0,7,0,07,0,00,7,70,,,0,0 7,70, 7,7,,0,0 7,7,00,700,0,0,0,00,0,700,00 7,,7 7,77 7,0 77,0,7,00,0,7, 0,0,00,7,,7,7,00,7,700,0 70,00,70 7,0,0,,77,7,0,00, 0,00,77,0,0,00,,00 7,,00,7 7,,,00,,00,07 7,0,0,,,,00,000,0,07,7,,7 7,,7 7,00,700,700,00,00,00,0 7,0,00 7,00,00 7,00 0,0,00,0,0 70,00,70,0,00,,,7,000,0,7,700,700 7,7 7,0,,07,77,00,7,7,0,700,0,0,00,00,00,0,00,00,00,0,, 0,7,00 7,70,00,00,00,7 7,7,,000,00,7 7,00,00,,00,,00,00,700,,,00 7,700,0 7,07,00 7,00,00,000,000,000,00,700,000,0,00,00,700,0,7 7,0,,,0,,77,000,7, 0,7,7,0,7,0,7,0,0,0,0,07,7 7,0,0,0,000,0,00,0,0,0,07,0,0,77,,,7,00,70,0,77 7,,000,,0,7, 7,,00,0, 7,,7 7,00,000,70,0,000,00,0,000,00,00,00,00,00,0 0,0,00,0,00 st Stage Cooling Application Data Outdo Temperature Model WAS WAS WAS D.B./W.B. 7/ 0/7 /7 7/ 0/7 /7 7/ 0/7 /7 Cooling Capacity BTU/HR 0 o F o F 0 o F o F 70 o F 7 o F 0 o F o F 0 o F o F 0 o F o F o F o F,0,77,0,07 7,00,0,000,7,7,7,00, 0,7 7,,,00,0,0,7,0,0,7,700,000,00,000,00,0,0,00,00,7,00,0 0,00,77,0,,0,00,,00,0,7,,0,0,000 7,7,00,00,7,00,0 7,0,0,7,,0,00 7,,,0,000,7,0,0,,00,7 7,0,,7 0,7,70,0,7 0,00,7,0,7,,7 7,7,07,000 0,7,0,0,7 Below 0 o F, unit requires a facty fieldinstalled low ambient control. Return air temperature F.,0 0,0,00 0,00,000 0,0,0 7,000,000 7,0,00 7,0,70,,0,0,00,00,,0 7,,7, 0,0,00,7 7,70,0,0,7,0,7,0,,00,7,00,00,0,,0,0,0,0,00,000,00,0,0,00,, 0,7,0,0,00,0,00,7,7,000,,0,,0,0,0,0,,,,00,00,00,000,0 7,0,00,00,00,000,00 7,00,0,0,0,000,700,70,0 0,0,0,00 7,,,,00,,,0,00,7 7,0,77,77,,00,00,00 7,,00 7,7, 7,,0,70,0,77,0,700,,0 7,0,,0,7,,7 0,700 7,00,70 7, 7,000,7,7,,000,,,7,,00,0,0 7,0,0,00,00,0,0,700,00,00,0,700,70,700,00,0,0,0,00 Fm No. S70 Supersedes S7 Page of
Air Conditioning WallMount Model Nomenclature MODEL NUMBER WA S A B P X X X X REVISION KW CONTROL MODULES (See Chart Below) CAPACITY S Ton S Ton S Ton VOLTS & PHASE A /0/0/ B /0/0/ C /0/ VENTILATION OPTIONS B Blankoff Plate V Commercial Room VentilatMotized with Exhaust E Economizer Fully Modulating with Exhaust R Energy Recover Ventilat Motized with Exhaust COLOR OPTIONS X Beige (Standard) Gray Desert Brown Dark Bronze FILTER OPTIONS P inch Pleated COIL OPTIONS X Standard OUTLET OPTIONS X Front (Standard) Note: F 0KW and circuit breakers (/0 Volt) toggle disconnect ( Volt) applications, insert 0Z in the KW field of the model number. Ventilation Options Models WAS, WAS, WAS Description Facty Installed Field Installed Code No. Part No. BlankOff Plate B BOP Commercial Ventilat Motized V CRVMP Economizer Fully Modulating E EIFM C Energy Recovery Ventilat Volt R WERVAB Energy Recovery Ventilat Volt R WERVCB Low ambient control is required with economizer f low temperature compress operation. Air Conditioning Control Modules WAS, WAS, WAS AVAILABLE CONTROL OPTIONS HPC LPC CCM LAC ALR SK DDC 7 Facty Installed Code Models with Compresss Field Installed Part H CMA J Facty Only = Standard equipment f these specified models. HPC. High pressure control is auto reset. Always used with compress control module (CCM) which is included. See note. LPC. Low pressure control is auto reset. Always used with compress control module (CCM) which is included. See note. CCM. Compress control module has adjustable second to minute delayonbreak timer. On initial powerup, any time the power is interrupted, the delayonmake will be minutes plus % of the delayonbreak setting. There is no delayonmake during routine operation of the unit. The module also provides the lockout feature (with retry) f high and/ lowpressure controls, and a minute timed bypass f lowpressure control. LAC. Low ambient control permits cooling operation down to 0 F. ALR. The alarm relay has a set of nmally open and nmally closed dry contacts to provide the ability to signal a condition of shutdown on either high low pressure controls. SK. Start kit standard on all A single phase models only. Is not used available f B C three phase models. 7 DDC. Incpates additional senss: discharge air temperature, indo blower airflow, compress current, and dirty filter. These sensing devices function to input analog data such as temperature, as well as digital data such as air flow, compress status filter status. Fm No. S70 Supersedes S7 Page 7 of
Clearances Required f Service Access and Adequate Condenser Air Flow MODELS LEFT SIDE RIGHT SIDE W AS, WAS, WAS 0" 0" Minimum Clearances Required to Combustible Materials MODELS SUPPLY AIR DUCT FIRST THREE FEET CABINET W AS, WAS, WAS /" 0" Dimensions of Basic Unit f Architectural and Installation Requirements (Nominal) MODEL WIDTH (W) DEPTH (D) HEIGHT (H) SUPPLY RETURN A B C B E F G I J K L M N O P Q R S T WAS.07..7........00.....7...00..00. WAS WAS.07..7........00.....7...00.00.00. All dimensions are in inches. Dimensional drawings are not to scale..00 f model WAS on lower two positions only. FRONT VIEW SIDE VIEW BACK VIEW