Daikin Applied SUBMITTAL FOR APPROVAL. Emergent BioSolutions B16 Formulation HVAC Upgrades. Engineer: IPS. Contractor: AMS

Transcription

1 Daikin Applied SUBMITTAL FOR APPROVAL Emergent BioSolutions B16 Formulation HVAC Upgrades Engineer: IPS Contractor: AMS Submitted by: Cory Petersen Mark: AHU 0072 Custom Outdoor AirHandling Unit July 18, Pinnacle Court Auburn Hills, MI Ph: (248) F: (248) Service: (248) Parts: (248)

2 Custom Air Handling Unit Job Information Technical Data Sheet Job Name Emergent B16 Formulation AHU 0072 Date July Submitted By CRP Software Version Unit Tag AHU 0072 Unit Overview Model Number Air Volume cfm External inwc Static Pressure Total inwc Supply Height in External Dimensions Width in OAH006GDGC * 52* 196 *Not including base rails, coil connectors, drain connectors, vestibule sections, control boxes and hoods. Length in Unit Model Number: OAH006GDGC Approval: ETL Listed / ETL Listed to Canadian Safety Standards (ETL Label / ETLc Label) Outer Panel: Painted standard G60 Galvanized Steel Liner: Galvanized Steel (unless noted per section) Insulation: R-13 Injected Foam Unit Configuration: Inline horizontal Drive (Handling) Location: Left Base: Unitized curb ready base Wall Thickness: 2 in Roof Curb Kit: 16 in Altitude: 0 ft Parts Warranty: Standard One Year Mixing Box Component: 1 Length: 24 in Shipping Section: 1 Drip Pan Stainless steel drip pan Drip Side Drive side Portion Damper Rated CFM Air Pressure Size (length x width) Location Type Drop Overall Opening Outside Air 16 in x 32 in 12 in x 22 in Top Return Air 20 in x 18 in 16 in x 8 in Right UltraSeal Low Leak UltraSeal Low Leak Door Quantity Hoods 1700 cfm 0.07 inswg 1 None 850 cfm 1 Location Width Opening Drive side 20 in Outward Page 1 of 5

3 Custom Air Handling Unit Combination Filter Component: 2 Length: 26 in Shipping Section: 1 Access Face Velocity Face Area Air Volume Side 224 ft/min 7.6 ft² 1700 cfm Portion Type Efficiency Air Pressure Drop Number of Clean Air Mean Air Dirty Air Filters Height Width Depth Pre-Filter Pleated MERV inwc 0.55 inwc 1.00 inwc 2 24 in 24 in 2 in Filter AAF - Bag MERV inwc 0.7 inwc 1.00 inwc 2 24 in 24 in 19 in Door Location Width Opening Drive side 22 in Outward Pre-Filter Gauge Magnehelic Extra filters 1 set(s) Pre-filter Intersept Antimicrobial treatment Special Options Special Text Final-Filter Gauge Magnehelic IFB Steam Coil Component: 3 Length: 36 in Shipping Section: 1 Coil Model Total Capacity Number of Coils Number of Rows Fins per Inch Tube Diameter Tube Spacing (Face x Row) HMX11AS Btu/hr in 1.50 in x in Air Volume Air Temperature Coil Air Pressure Entering Leaving Drop Dry Bulb Dry Bulb Finned Height Finned Length Face Area Face Velocity 1700 cfm 11.5 F 60.4 F 0.12 inwc 20 in 30 in 4.14 ft² 416 ft/min Steam Pressure Fluid Condensate Load Max. Superheat Temp. in Steam Coil Inlet Piping Vestibule* 7.50 psi lb/hr 0.0 F - in Connection Type Quantity Size Location Material Threaded in Drive side Carbon steel Material Fin Tube Header Case Aluminum.0075 in Copper.035 in Copper Galv. steel *Piping vestibule sections ship loose for field mounting. Access Section Component: 4 Length: 24 in Shipping Section: 1 Air Pressure Drop 0.00 inwc Door Location Width Opening Drive side 20 in Outward Page 2 of 5

4 Custom Air Handling Unit Chilled Water Coil Component: 5 Length: 32 in Shipping Section: 1 Coil Model Total Capacity Sensible Capacity Number of Coils Number of Rows Fins per Inch Tube Diameter Tube Spacing (Face x Row) 5WH1010C Btu/hr Btu/hr in 1.50 in x in Air Volume Air Temperature Coil Air Entering Leaving Pressure Drop Finned Height Finned Length Face Area Face Velocity Dry Bulb Wet Bulb Dry Bulb Wet Bulb 1700 cfm 87.6 F 70.7 F 49.8 F 49.6 F 1.03 inwc 21 in 39 in 5.69 ft² 299 ft/min Entering Fluid Flow Rate Pressure Drop Velocity Volume Weight Piping Leaving Vestibule* 42.0 F 54.4 F gpm fthd 3.20 ft/s 7.0 gal lb - in Connection Glycol Type Min. Fin Type Quantity Size Location Material Surface Temp. Threaded in Drive side Carbon steel Propylene (30%) Min. Tube Wall Surface Temp. Fouling Factor 42.0 F 42.0 F Material Drain Pan Drain Side Fin Tube Header Case Aluminum.0075 in Copper.035 in Copper Galv. steel Stainless steel Opp drive side *Piping vestibule sections ship loose for field mounting. AHRI 410 Certification Coil is NOT certified by AHRI Door Location Width Opening Drive side 10 in Outward Supply Fan Component: 6 Length: 34 in Shipping Section: 1 Fan Performance Air Volume Static Pressure Brake Horsepower Speed Outlet Velocity External Total Cabinet Operating Maximum 1700 cfm 2.50 inwc 5.53 inwc 0.00 inwc 2.34 BHP 3500 rpm 3909 rpm 0 ft/min Fan Data Fan Type Blade Type / Class Quantity of Fans Wheel Diameter Material Type Number of Blades Discharge Motor Location Centrifugal - Plenum Power Electrical Supply 3.0 HP 460/60/3 V/Hz/Phase Airfoil / in Aluminium 9 Axial Behind Fan Motor Data Speed Efficiency Enclosure Frame Size Supplier Number of Poles Lock Rotor Current Full Load Current 3500 rpm Premium TEFC 182 T frame Generic 2 32 A 3.53 A Fan Options Shaft Grounding Kit: Provided Isolator Type: Spring VFD/Starter/Disconnect Data Selection Type: External J-Box - NEMA 1 Vendor: Factory Standard Voltage: 460 V Height x Width x Depth: 4.00 in x 6.00 in x 6.00 in Mounting: Door Side Enclosure: NEMA 3R Door Location Width Opening Drive side 18 in Outward Page 3 of 5

5 Custom Air Handling Unit Plenum Section Component: 7 Length: 20 in Shipping Section: 1 Air Pressure Drop 0.01 inwc Custom Openings Custom Opening Location Width Height Rainhood w/screen 1 End 30 in 20 in None Door Location Width Opening Non-drive side 16 in Outward Unit Sound Power (db) Type 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz Radiated: Unit Discharge: Unit Return: Shipping Section Details Section Length in Weight lb Corner Weights (lb) Center of Gravity (in) P1 P2 P3 P4 XX YY ZZ Entire Unit NOTE: Special components aren't included in the corner weights and center of gravity data. AHRI Certification The air-handler is selected outside of the scope of AHRI 430 Page 4 of 5

6 Custom Air Handling Unit Notes Important 1. This unit may not meet ASHRAE Standard fan motor power limitations. If that code applies, alternate fan selections may be required. 2. The designer and installer must ensure compliance with applicable codes. A component supplier cannot determine the brake horsepower ("BHP") for other motors in the air handling system. 3. Before approving this unit, determine whether ASHRAE Standard has been adopted in the specific jurisdiction or contract specifications in which the unit will be installed. Standard 1. Note: Final filter media not provided by Daikin Applied, quantity and size data is for informational purposes only. Page 5 of 5

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10 Unit Tag Qty Model Length (in) Weight (lb) Type Fan Qty Class Airflow RPM BHP (CFM) Supply Fan E.S.P. (inh2o) T.S.P. (inh2o) Voltage Motor Power RPM (HP) Control Sensible Capacity (Btu/hr) Total EAT DB EAT WB LAT DB LAT WB Capacity F F F F (Btu/hr) Chilled Water Coil F.V. (ft/min) Emergent B16 Formulation AHU 0072 A.P.D. EWT (inh2o) F LWT F Flow Rate (GPM) AHU OAH006GDGC DDPL15 9BL /60/ External J Box AERO HMX11AS Pleated (MERV 8) x AAF x W.P.D. Rows FPI (fth2o) Integral Face & Bypass (Steam) Manufacturer Coil Code Type Panel Filter Filter Qty Sizes Depth Efficiency Clean PD (inh2o) Dirty PD (inh2o) Combination Filter Mean PD (inh2o) Type Bag Filter Filter Qty Sizes Depth Efficiency Clean PD (inh2o) Dirty PD (inh2o) Mean PD (inh2o)

11 STATIC PRESSURE (IN. OF WATER) rpm (54.9 Hz) 3000 rpm (51.4 Hz) 2800 rpm (48.0 Hz) 2600 rpm (44.6 Hz) 2400 rpm (41.1 Hz) 2200 rpm (37.7 Hz) 2000 rpm (34.3 Hz) 1800 rpm (30.9 Hz) 1600 rpm (27.4 Hz) 1400 rpm (24.0 Hz) rpm (58.3 Hz) 3800 rpm (65.1 Hz) 3600 rpm (61.7 Hz) 4000 rpm (68.6 Hz) Daikin AHU Fan Curve bhp 1.5 bhp 2 bhp 3 bhp 5 bhp 4.0 CFM (IN 1,000's) AF 15 DD PLENUM 9BL (56% Width) 1x1 Supply Fan at Standard Conditions Air volume 1700 cfm Fan speed 3500 rpm Total static 5.53 inswg Max speed 3909 rpm Brake horsepower 2.3 bhp Efficiency 63.2 % Approx VFD Setting 60.0 Hz Motor Speed 3500 rpm Unit tagging AHU 0072 Job name Emergent B16 Formulation AHU 0072 Date July Time 11:48

12 PART 1: GENERAL 1.01 SECTION INCLUDES A. Outdoor Air Handling Units REFERENCES A. AFBMA 9 - Load Ratings and Fatigue Life for Ball Bearings. B. AMCA 99 - Standards Handbook. C. AMCA Laboratory Methods of Testing Fans for Rating Purposes. D. AMCA Test Code for Sound Rating Air Moving Devices. E. AMCA Test Methods for Louver, Dampers, and Shutters. F. AHRI Forced-Circulation Air-Cooling and Air-Heating Coils. G. AHRI Central-Station Air-Handling Units. H. AHRI Application of Central-Station Air-Handling Units. I. ASTMB117 - Standard Practice for Operating Salt Spray Apparatus. J. NEMA MG1 - Motors and Generators. K. NFPA 70 - National Electrical Code. L. SMACNA - HVAC Duct Construction Standards - Metal and Flexible. M. UL Test for Surface Burning Characteristics of Building Materials. N. UL Test Performance of Air Filter Units. O. UL Standard for Heating and Cooling Equipment. P. UL 94 - Test for Flammability of Plastic Materials for Parts in Devices and Appliances. Q. IBC 2000, International Building Code. R. NFPA 90A - Standard for the Installation of Air Conditioning and Ventilating Systems. S. NFPA Building Construction and Safety Code. T. ASHRAE 90.1 Energy Code. U. AHRI Standard Rating Air-to-Air Heat Exchangers for Energy Recovery Ventilation Equipment. V. GSA 2003 Facilities Standard HVAC Systems and Components SUBMITTALS A. Shop Drawings: Indicate assembly, unit dimensions, weight loading, required clearances, construction details, field connection details, and electrical characteristics and connection requirements. Computer generated fan curves for each air handling unit shall be submitted with specific design operating point noted. A computer generated psychometric chart shall be submitted for each cooling coil with design points and final operating point clearly noted. Sound data for discharge, radiated and return positions shall be submitted by octave band for each unit. Calculations for required baserail heights to satisfy condensate trapping requirements of cooling coil shall be included. B. Product Data: 1. Provide literature that indicates dimensions, weights, capacities, ratings, fan performance, finishes of materials, electrical characteristics, and connection requirements. 2. Provide data of filter media, filter performance data, filter assembly, and filter frames. 3. Provide manufacturer's installation instructions QUALIFICATIONS A. Manufacturer: Company specializing in manufacturing Air Handler products specified in this section must show a minimum five years documented experience and complete catalog data on total product SAFETY AGENCY LISTED & CERTIFICATION

13 A. Air Handling units shall be cetlus safety listed to conform with UL Standard 1995 and CAN/CSA Standard C22.2 No Units shall be accepted for use in New York City by the Department of Building, MEA E. B. Air handler furnished with double width, double inlet (DWDI) fans and/or plenum fans where applicable, shall be certified in accordance with the central station air handling units certification program, which is based on AHRI Standard 430. C. Air handling unit water heating & cooling coils shall be certified in accordance with the forced circulation air cooling and air heating coils certification program, which is based on AHRI Standard DELIVERY, STORAGE, AND HANDLING A. Deliver, store, protect and handle products to site. B. Accept products on site on factory-furnished shipping skids. Inspect for damage. C. Store in clean dry place and protect from construction traffic. Handle carefully to avoid damage to components, enclosures, and finish. PART 2: PRODUCTS 2.01 ACCEPTABLE MANUFACTURERS A. The following manufacturers are approved for use. No substitutions will be permitted. 1. Daikin Applied 'Skyline' Air Handler shall be the basis of design. 2. Miller-Picking 3. Temtrol 4. Scott-Springfield 5. Racan-Carrier Company 2.02 GENERAL DESCRIPTION A. Configuration: Fabricate as detailed on prints. B. Performance: Conform to AHRI 410 and 430 Standards. See schedules on prints. (NOTE: Above does not apply to fan array) C. Acoustics: Sound power levels (db) for the unit shall not exceed the specified levels shown on the unit schedule. The manufacturer shall provide the necessary sound treatment to meet these levels if required UNIT CONSTRUCTION A. Fabricate unit with heavy gauge channel posts and panels secured with mechanical fasteners. All panels, access doors, and ship sections shall be sealed with permanently applied bulb-type gasket. Shipped loose gasketing is not allowed. B. Panels and access doors shall be constructed as a 2-inch nominal thick; thermal broke double wall assembly, injected with foam insulation with an R-value of not less than R The outer panel shall be constructed of G60 painted galvanized steel. 2. The inner liner shall be constructed of G90 galvanized steel. 3. The floor plate shall be constructed as specified for the inner liner. 4. Unit will be furnished with solid inner liners. C. Panel deflection shall not exceed L/240 ratio at 125% of design static pressure, maximum 5 inches of positive or 6 inches of negative static pressure. Deflection shall be measured at the panel midpoint. D. The casing leakage rate shall not exceed.5 cfm per square foot of cabinet area at 5 inches of positive static pressure or 6 inches of negative static pressure (.0025 m3/s per square meter of cabinet area at 1.24 kpa static pressure). E. Module to module field assembly shall be accomplished with an overlapping, full perimeter internal splice joint that is sealed with bulb type gasketing on both mating modules to minimize on-site labor and meet indoor air quality standards.

14 F. Access doors shall be flush mounted to cabinetry, with minimum of two six inch long stainless steel piano-type hinges, latch and full size handle assembly. Access doors shall swing outward for unit sections under negative pressure. Access doors on positive pressure sections, shall have a secondary latch to relieve pressure and prevent injury upon access. G. Provide cross broke roofcap system to divert water from the top surface of the air handler. The rain shed roofcap shall have 2 standing seams covered with splice cap channels to seal top seam. Splice cap shall break down over sides of standing seam to protect the ends of the seam. 1. Rooftop air handler cooling coil piping shall extend through the unit casing for field connection. The installing contractor shall insure that connecting piping is protected from weather. H. The unit shall be equipped with a unitized base and shall overhang the roof curb for positive water runoff and shall seat on the roof curb gasket to provide a positive, weather tight seal. Lifting brackets shall be provided on the unit base to accept cable or chain hooks for rigging the equipment. I. Roof curb kit of 16-inch height shall provide support for the air handler on the building roof and provide a weather protected area for terminating and securing the roof membrane. The roof curb kit shall be manufactured by the air handler unit manufacturer. J. Construct drain pans from stainless steel with cross break and double sloping pitch to drain connection. Provide drain pans under cooling coil section. Drain connection centerline shall be a minimum of 3 above the base rail to aid in proper condensate trapping. Drain connections that protrude from the base rail are not acceptable. There must be a full 2 thickness of insulation under drain pan FAN ASSEMBLIES A. Acceptable fan assembly shall be a single width, single inlet, class II, direct-drive type plenum fan dynamically balanced as an assembly, as shown in schedule. Maximum fan RPM shall be below first critical fan speed. Fan assemblies shall be dynamically balanced by the manufacturer on all three planes. Provide access to motor and fan assembly through hinged access door. B. Fan and motor shall be mounted internally on a steel base. Factory mount motor on slide base that can be slid out the side of the unit if removal is required. Provide access to motor, drive, and bearings through hinged access door. Fan and motor assembly shall be mounted on 2" deflection spring vibration type isolators inside cabinetry BEARINGS, SHAFTS, AND DRIVES A. Bearings: Basic load rating computed in accordance with AFBMA - ANSI Standards. The bearings shall be provided on the motor with the fan wheel mounted directly on the motor shaft, AMCA arrangement 4. B. Shafts shall be solid, hot rolled steel, ground and polished, keyed to shaft, and protectively coated with lubricating oil. Hollow shafts are not acceptable. C. The fan wheel shall be direct coupled to the motor shaft. The wheel width shall be determined by motor speed and fan performance characteristics ELECTRICAL A. The air handler(s) shall be ETL and ETL-Canada listed by Intertek Testing Services, Inc. Units shall conform to bi-national standard ANSI/UL Standard 1995/CSA Standard C22.2 No B. Fan motors shall be manufacturer provided and installed, Totally Enclosed, premium efficiency (meets or exceeds EPAct requirements), 3500 RPM, single speed, 460V / 60HZ / 3P. Complete electrical characteristics for each fan motor shall be as shown in schedule. C. Wiring Termination: Provide terminal lugs to match branch circuit conductor quantities, sizes, and materials indicated. Enclosed terminal lugs in terminal box sized to NFPA 70. D. Manufacturer shall provide ASHRAE 90.1 Energy Efficiency equation details for individual equipment to assist Building Engineer for calculating system compliance.

15 E. Installing contractor shall provide GFI receptacle within 25 feet of unit to satisfy National Electrical Code requirements. F. Air handler manufacturer shall provide and mount conduit and wiring from each fan motor terminated at an external NEMA 3R junction box COOLING AND HEATING COILS A. Certification: Acceptable water cooling, water heating, steam, and refrigerant coils shall be certified in accordance with AHRI Standard 410 and bear the AHRI label. Coils exceeding the scope of the manufacturer s certification and/or the range of AHRI s standard rating conditions will be considered provided the manufacturer is a current member of the AHRI Forced Circulation Air-Cooling and Air-Heating Coils certification programs and that the coils have been rated in accordance with AHRI Standard 410. Manufacturer must be ISO 9002 certified. B. Water cooling coil shall be provided. Provide access to coil(s) for service and cleaning. Enclose coil headers and return bends fully within unit casing. Unit shall be provided with coil connections that extend a minimum of 5 beyond unit casing for ease of installation. Drain and vent connections shall be provided exterior to unit casing. Coil connections must be factory sealed with grommets on interior and exterior panel liners to minimize air leakage and condensation inside panel assembly. If not factory packaged, Contractor must supply all coil connection grommets and sleeves. Coils shall be removable through side and/or top panels of unit without the need to remove and disassemble the entire section from the unit. 1. Headers shall consist of seamless copper tubing to assure compatibility with primary surface. Headers to have intruded tube holes to provide maximum brazing surface for tube to header joint, strength, and inherent flexibility. Header diameter should vary with fluid flow requirements. 2. Fins shall have a minimum thickness of inch aluminum plate construction. Fins shall have full drawn collars to provide a continuous surface cover over the entire tube for maximum heat transfer. Tubes shall be mechanically expanded into the fins to provide a continuous primary to secondary compression bond over the entire finned length for maximum heat transfer rates. Bare copper tubes shall not be visible between fins. 3. Coil tubes shall be 5/8 inch OD seamless copper, inch nominal tube wall thickness, expanded into fins, brazed at joints. 4. Coil connections shall be carbon steel, NPT threaded connection. Connection size to be determined by manufacturer based upon the most efficient coil circuiting. Vent and drain fittings shall be furnished on the connections, exterior to the air handler. Vent connections provided at the highest point to assure proper venting. Drain connections shall be provided at the lowest point to insure complete drainage and prevent freeze-up. 5. Coil casing shall be a formed channel frame of galvanized steel. C. Horizontal tube integral face and bypass steam coil shall be furnished and consist of multiple alternating heating sections and bypass sections, with airflow distributed to each by interlocking wrap-a-round clamshell style dampers; linkage to be stainless steel. Coils shall be suitable for continuous operation at 200 psig and 400 F degrees. Heating elements to consist of multi-row, multi-pass extended heat transfer surface; coil shall carry ARI 410 certification as to ratings. Welding and brazing shall be done by ASME qualified personnel. 1. Headers shall be single piece carbon steel, with no separate disks or caps welded or brazed into header ends. Connections shall be steel and shall be welded to header barrels. 2. Fins shall be continuous patterned plate,.0075 thick aluminum with full fin collars. 3. Tubes shall be 5/8 diameter seamless copper,.035 average wall thickness. Joints shall be silver brazed. 4. Casings and dampers shall be minimum 16 gauge mill galvanized steel; top and bottom casing panels to be double flanged for stacking. End casings shall have smooth, embossed tube holes to provide adequate

16 bearing surface for tubes to avoid abrasion during expansion and contraction. Flexible connectors shall not be required FILTERS A. Furnish combination filter section with 2-inch pleated MERV 8 flat pre-filter with microbial resistant Intersept coating and 19-inch final filter. Provide side loading and removal of filters. B. Filter media shall be UL 900 listed, Class I or Class II. C. Filter Magnehelic gauge(s) shall be furnished and mounted by others ADDITIONAL SECTIONS A. Plenum section shall be provided and properly sized for inlet and/or discharge air flow (between 600 and 1500 feet per minute). The plenum shall provide single or multiple openings as shown on drawings and project schedule. B. Access section shall be provided for access between components. Floor options shall include.125-inch aluminum treadplate or drainpan as shown on project schedule. C. Mixing box section shall be provided withtop outside air opening and right side return air opening with or without parallel low leak airfoil damper blades. Dampers shall be hollow core galvanized steel airfoil blades, fully gasketed and have continuous vinyl seals between damper blades in a galvanized steel frame. Dampers shall have stainless steel jamb seals along end of dampers. Linkage and ABS plastic end caps shall be provided when return and outside air dampers sized for full airflow. Return and outside air dampers of different sizes must be driven separately. Damper Leakage: Leakage rate shall be less than two tenths of one percent leakage at 2 inches static pressure differential. Leakage rate tested in accordance with AMCA Standard 500. PART 3: EXECUTION 3.01 INSTALLATION A. Install in accordance with manufacturer s Installation & Maintenance instructions ENVIRONMENTAL REQUIREMENTS A. Do not operate units for any purpose, temporary or permanent, until ductwork is clean, filters are in place, bearings lubricated, and fan has been test run under observation EXTRA MATERIALS A. Provide [one, two, etc.] extra set(s) [fan belts, filters, etc.] for each unit as shown on project schedule.

17 ARI Certified Ratings integral face & bypass coils

18 coil construction (horizontal tubes) Damper Actuator Aeromix dampers are actuated manually, electrically or pneumatically (shown). Equipped with automatic temperature control, the actuator will self-adjust as needed to deliver the preset temperature on the leaving air side of the coil. Headers & Connections Aeromix headers are fabricated from carbon steel pipe. Non-ferrous, stainless steel and copper-nickel are available options. Male pipe thread connections are standard. Flanged and butt-weld connections are available options. Casing Aeromix coil casings are made of heavy gauge galvanized steel. Stainless steel and aluminum casings are available options. The tube sheets are punched and embossed to provide tube support and to minimize tube wear. Perimeter casing mounting holes are available upon request. PAGE 4

19 coil construction (horizontal tubes) Finned Tubes Aeromix coils feature aluminum star patterned plate fins for maximum heat transfer. The fins are attached to the tubes by mechanical expansion of the tubes, ensuring a permanent fin-to-tube bond. Full fin collars allow for both precise fin spacing and maximum fin-to-tube contact. The tubes are 5/8" od x.035" heavy wall seamless copper and are brazed to carbon steel headers. Stainless steel, carbon steel and copper-nickel tubes are available options. Dampers Aeromix dampers are made of heavy gauge galvanized steel and feature a unique shape which blends the air over the finned tube and bypass zones without changing the air pressure drop. This produces even, tempered air on the downstream side of the coil. Stainless steel and aluminum dampers are available options. Linkages Aeromix damper linkages are simple and reliable in design, ensuring accurate adjustment and long life. Control linkages are built from common parts, and the compact arrangement keeps overall length to a minimum. PAGE 5

20 design features Non-freeze Construction Aeromix coils for both steam and hot fluids are designed to provide freeze protection. Because the leaving air temperature from the Aeromix is controlled by dampening of the airflow, modulation of the steam or fluid is unnecessary. This feature maintains adequate steam pressure or tube velocity and prevents freeze-up. In addition, the vertical tube Aeromix steam coil is designed with tubewithin-a-tube construction. Steam enters the coil through the inner tube and protects the condensate from freezing as it condenses in the outer tube. The Aeromix for both steam and hot fluids provides the most reliable freeze protection available. Free Thermal Movement of Heating Elements Aeromix coils with vertical tubes have individually finned tubes which allow each tube to expand and contract independently. The headers are secured to the casing with free thermal movement of the tube bundle provided through embossed holes in the top casing opposite the header end. With fixed headers and free thermal movement of the tubes, strain on the tube joints is eliminated, and the tube bundle is isolated from the supply and return piping. Accurate Temperature Control Aeromix heating coils maintain a preset air temperature by heating a portion of a cold air stream and bypassing the remainder. The heated and bypassed air mix at the discharge of the coil to produce the desired temperature. Built-in face and bypass dampers mix hot and cold air streams in response to a thermostat downstream of the coil. As the entering air temperature changes, the dampers adjust to maintain the preset leaving temperature (from bypass fully closed for maximum heat output, to bypass fully open for minimum heat output) without the need to modulate the heating medium. Response to the thermostat is immediate and effective, even when minimum temperature rise is needed. Even Air Temperature Aeromix coils have adjacent heating and bypass sections to produce an evenly distributed air temperature across the leaving face of the coil. The air will mix within 3 feet downstream of the coil, allowing a maximum variance in air temperature of 5 degrees F. Minimum Temperature Override Aeromix dampers position to full bypass and completely close off the heating elements when the entering air temperature equals the leaving air temperature set point. With the air stream diverted around the heating elements, temperature override is minimized. Constant Air Volume Aeromix coils maintain a constant pressure drop as they operate due to the design of the dampers and bypass sections. This unique feature allows for constant air volume regardless of the position of the dampers. Controls Aeromix damper actuators may be pneumatic or electric, controlled by a thermostat downstream of the coil. Aerofin can supply actuators and thermostats, or the installer may provide his own. With loss of control air, pneumatic actuators fail with dampers fully open (zero bypass) for full heating operation. As an option, pneumatic actuators can be provided that fail with dampers fully closed (100% bypass). Variety of Heating Media Aeromix coils can be used with a variety of heating media. Hot water, hot ethylene glycol solution and steam are typical. Also available are applications with special heat transfer fluids such as alcohol-based fluids, organic high-temperature fluids and petroleum-based hot oils. Consult Aerofin for performance ratings for your specific application and conditions of service. PAGE 6

21 Full Heat At full load conditions, the dampers of the Aeromix are fully open, blocking the bypass sections of the coil. All air flows across the finned tube sections, allowing maximum heat transfer and temperature rise. temperature control Modulated Heat As the entering air temperature rises, the dampers begin to close, allowing a portion of the air to flow through the bypass sections. The coil operates at a reduced load, and the air mixes downstream of the coil to maintain the desired leaving air temperature. Full Bypass When the entering air temperature reaches the desired leaving air temperature, the dampers close completely, forcing all of the air through the bypass sections. The finned tube sections are isolated, and air temperature override is minimized. PAGE 7

22 Dry aeromix coil weights (pounds) for 1-0 through 5-0 FL - horizontal tubes FL TF ROWS weight and face area charts (horizontal tubes) NOTE: Weight table based on 10 FPI aluminum Aeromix face area (sq. ft.) for 1-0 through 5-0 FL - horizontal tubes FL TF PAGE 11

23 water or steam aeromix (horizontal tubes) PAGE 14

24 Piping Information 1. Full sized condensate piping should be maintained from the coil to the steam trap. The pipe size should not be reduced at the coil. 2. Thermostatic traps should be used for venting only. Float & thermostatic traps, or bucket traps, should be used for condensate removal. The trap size should be selected using the pressure differential between the steam supply and condensate return mains degree check valves should be used because they open with a lower head of water. 45 degree check valves should not be used. 4. Condensate drips should be piped into the return main downstream of the steam trap. 5. Ensure that the steam control valve is properly sized. 6. A pump & receiver tank, or a steam pump, should be installed between steam traps and overhead condensate return mains. Condensate should not be lifted to an overhead main using only the steam pressure. 7. Strainers should be used on the steam supply side of the coil to collect any scale or debris. 3/32 inch mesh is recommended. 8. All coils should be provided with proper air vents to eliminate noncondensable gases. 9. All coils should be provided with the proper vacuum breakers. 10. Piping mains should be supported independently of the coils. Do not use the Aeromix coil to support any piping. piping information PAGE 15

25 handling, storage, installation, operation & maintenance Handling/Storage Each vertical tube Aeromix coil is provided with two eyebolts for lifting. A spreader bar should be used to produce a vertical lift. Horizontal tube Aeromix coils can be lifted and handled using conventional rigging (straps, slings, etc.). Special lifting provisions can be provided upon request. If the coil is to be stored prior to installation, place it in a dry and protected area. Installation General/Arrangement The finned tube core of the coil is firmly supported within the casing, with the tubes capable of thermal expansion through the casing. No adjustment of the header is required. Level installation is necessary to ensure proper drainage. Provide a 36" minimum space downstream of the coil for adequate mixing of bypassed and heated air. Support Support the coil by resting the bottom of the casing directly on the floor or other support structure, or by bolting the casing perimeter face flange to the air duct or wall. Do not support the air duct system with the casing of the Aeromix coil. Vertical tube coils may stand on support legs to provide clearance above the floor for installation of supply and return piping. Piping Supply and return piping should be supported independently of the coil. Do not use the coil as a an anchor for the piping system Refer to page 15 for Aerofin s recommended piping installation. Controls The required leaving air temperature from the coil is maintained by automatic positioning of the face and bypass dampers via an electric or pneumatic actuator, in response to a thermostat downstream of the coil. The averaging type temperature sensing element should be placed perpendicular to the tubes and across all face and bypass sections, not closer than 36 from the leaving air side of the coil. Mount the actuator onto the damper operator assembly. Mounting holes may be drilled as necessary to accommodate attachment hardware. Follow the control manufacturer s instructions for interfacing of the electric or pneumatic actuator to the air thermostat. A factory supplied pneumatic operator will position the dampers for full heating (fail with bypass closed, face open) upon loss of air pressure, unless ordered with reverse operation. An electric actuator will remain in the last operating position upon loss of power. Operation Pre-Start-Up Assure that the damper operator moves the dampers to fully close the face and reverses to fully close the bypass. Set the thermostat so that the face opens and the bypass closes when heat is required. Start-Up On start-up, the steam or water supply should be fully on before starting the air flow. Allow time for all air to be fully purged from the system and for the heating surface to fully heat up to avoid heating lag. Preheating a cold system will avoid excessive steam condensate loading and freeze-up at the PAGE 16

26 start of a steam heating system. After preheating, fully open the dampers for full face exposure (by-pass closed) and start the air flow. Set the thermostat for the desired air temperature. Shut-Down On shut-down, stop the air flow before turning off the steam or hot water supply. This procedure is imperative when the coil is heating subfreezing air. With the air flow shut off, leave the steam or hot water supply full on if the coil remains undrained and exposed to subfreezing air temperatures. Drain the coil free of water/condensate as soon as possible. Water left standing in the system may result in freeze damage. Venting Steam coils must have a provision for venting non-condensable gases (air and carbon dioxide) which are relieved from condensing steam. Build up of non-condensable gases will reduce the coil s heating capacity and can cause corrosion of the system. Provide venting as shown on page 15. Vacuum Breaker Use a vacuum breaker on steam heating coils as shown in the piping diagrams. This provision is essential for drainage of condensate should the coil be exposed to a vacuum condition relative to the pressure in the condensate return main, particularly upon shut-down when the supply steam is turned off. Modulation Steam: The supply steam pressure may be modulated for reduced heating capacity during the warmer portion of the heating season if desired. The coil features inner distributing tubes (nonfreeze construction) for uniform, even heating under low thermal loading. Hot Water: The supply water temperature may be modulated for reduced heating capacity if a temperature sensing element is used in the return piping and set to sustain a leaving water temperature not less than 100 F. Maintenance Periodic inspection is recommended for continued performance of the coil. Accumulation of dust, lint, oil, etc. will cause clogging and fouling of the fin surface and damper operation. Check for worn and loose parts and smooth damper operation. The fin surface may be cleaned with a noncorrosive solvent, compressed air and/or steam. Avoid direct high pressure blast to the fins. When cleaning with solvent, neutralize per the manufacturer s instructions and rinse with tap water. Strainers, drip legs, dirt pockets and steam traps in the piping system should be inspected and cleaned periodically. handling, storage, installation, operation & maintenance PAGE 17

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32 TEFC Super-E Premium Efficient Motors efficiency in your choice of steel-band or cast iron frame, ideal for tough industrial applications. The TEFC enclosure protects the motor from harsh environments because air does not pass freely through the motor. An external shaft-driven fan circulates air over the frame housing. Class F insulation, a 1.15 Service Factor and Exxon Polyrex EM grease are some of these motors standard features. Super-E motors have an insulation system that meets the requirements of NEMA MG1 Part for VFD use and are considered (with or without base). TEFC - Totally Enclosed Fan Cooled Foot Mounted, 230/460, 460 & 575 Volts, Three Phase, 1/2-200 Hp Hp kw RPM Frame Catalog No. High V Full Load Locked Rotor Full Load Torque Lb. Ft. Efficiency % Power Factor % Bearings 1/2 3/4 Full Load 1/2 3/4 Full Load 230/460 & 460 Volts 1/ EM E CD EM F CD EM E CD T EM3546T E CD T EM3581T E CD EM E CD T EM3556T E CD T EM3582T E CD / EM E CD / T EM3550T E CD / T EM3583T E CD / EM E CD / T EM3554T E CD / T EM3584T E CD / T EM3607T E CD / T EM3667T E CD EM E CD T EM3555T E CD T EM3586T E CD EM E 14.1 CD T EM3558T E CD T EM3587T E CD T EM3614T E CD T EM3664T F CD T EM3559T E CD T EM3610T E CD T EM3660T E CD T EM3611T E CD T EM3661T E CD T EM3704T E CD T EM3764T E CD T EM3613T E CD T EM3663T E CD T EM3615T E CD T EM3665T E CD T EM3708T E CD T EM3768T E CD DE ODE Volt Code C Dim. Conn. Diag. No. Notes NOTE: Volt Code: E = /460V, 60Hz; E1 = 230/460V, 60Hz, usable at 208V; F = 230/460V, 60 Hz See page 68 for Layout drawing. See page 93 for Connection Diagrams. Efficiencies shown are nominal. Data subject to change without notice. Contact Baldor for certified data. Shaded ratings are cast iron frames. 7

33 Protecting VFD-Driven Motors In: HVAC Systems The Greening of America s Buildings The growing green movement has led to a flood of new standards including the US Greens Building Councils Building Performance Initiative, the Green Building Initiative, and LEED all aimed at increasing energy efficiency and sustainability. Challenged to reduce energy consumption and to document savings, America s facilities managers are installing variable frequency drives (VFDs) in HVAC systems as one of the best ways of achieving such savings. The Promise of VFDs VFDs reduce energy consumption by allowing motors to run less than full speed. When used to control air conditioning, air handling, or pump motors, VFDs can yield energy savings of 20 ~ 30% or more by allowing motors to run at reduced speeds to compensate for changes in load. The Need for Shaft Grounding on VFD-Driven Motors Applications: Rooftop systems But, VFDs can damage the motors they control. They induce currents on motor shafts that discharge through the bearings, causing pitting, fluting, and catastrophic motor failure. Without bearing protection, any savings from the use of VFDs can be quickly wiped out by the cost of replacing motors and by system downtime. To make HVAC systems sustainable as well as energy efficient, a reliable method of bearing protection is required. Indoor or outdoor air handling units Proven, Long-Term Bearing Protection Chilled water pumps By diverting bearing currents safely to ground, AEGIS SGR Shaft Grounding Rings ensure the reliable, long-term operation of VFDdriven motor systems, locking in energy savings and making these systems truly sustainable and truly green! Ventilation fans Fan walls Air or water cooled chillers Condensing fans E l e c t r o S t a t i c Te c h n o l o g y w w w. e s t - a e g i s. c o m

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