THE WALL-MOUNT QUIET-CLIMATE HEAT PUMPS

Transcription

1 THE WALL-MOUNT QUIET-CLIMATE HEAT PUMPS Models: SH21, SH311, SH31, SH431, SH41, SH High Efficiency Heating Capacities: 21, to 55, Ultra Low Sound Level Cooling Capacities: 23, to 55, Refrigerant 22 The Bard Wall-Mount Heat Pump is a self-contained energy efficient heating and cooling system, which is designed to offer maximum indoor comfort at a minimal cost without using valuable indoor floor space or outside ground space. This unit is the ideal product for versatile applications such as: new construction, modular offices, school modernization, telecommunication structures, portable structures or correctional facilities. Factory or field installed accessories are available to meet specific job requirements. Engineered Features Aluminum Finned Copper Coils: Grooved tubing and enhanced louvered fin for maximum heat transfer and energy efficiency. Twin Blowers: Move air quietly. All models feature multispeed blower motors providing airflow adjustment for low static or free blow (non-ducted) operation at a very low sound level or ducted installations (low pressure duct systems not to exceed.2" W.C.). Units are shipped connected for ducted installations. Motor overload protection is standard on all models. Heat Pump Compressor: compressor designed for increased efficiency, quieter operation and improved reliability for longer life. Eliminates need for a suction accumulator. Phase Rotation Monitor: Standard on all 3 phase scroll compressors. Protects against reverse rotation if power supply is not properly connected. Condenser Fan and Motor Shroud Assembly: Slide out for easy access. One Inch, Disposable Air Filters: Are standard equipment. Optional 1" washable filters available and filter racks permit the addition of 2" pleated filter. Factory or field installed. Solid State Electronic Heat Pump Control: Provides efficient 3, or -minute defrost cycle. A thermistor sensor, speed up terminal for service and minute defrost override are standard on the electronic heat pump control. High Pressure Switch: Is built-in with a lockout circuit that resets from the room thermostat. Five Minute Compressor Time Delay: Short cycle protection is standard. Built into the heat pump control. Emergency Heat Circuit: Permits continuous operation of the system. Galvanized 2 Gauge Zinc Coated Steel Cabinet: Cleaned, rinsed, sealed and dried before the polyurethane primer is applied. The cabinet is handsomely finished with a baked on, beige textured enamel, which allows it to withstand hours of salt spray tests per ASTM B Electrical Components: Are easily accessible for routine inspection and maintenance through a right side, service panel opening. Features a lockable, hinged access cover to the circuit breaker. Electric Heat Strips: Features an automatic limit and thermal cut-off safety control. Heater packages are factory or field installed. Features easy slide-in field assembly with various outputs. Barometric Fresh Air Damper: Standard on all units. Allows up to 25% outside fresh air. Built-in Circuit Breakers: Standard on all V models. Toggle disconnect on 4V models Slope Top: Standard feature for water run-off. Full Length Mounting Brackets: Built into cabinet for improved appearance and easy installation. NOTE: Bottom mounting bracket included to assist in installation. Top Rain Flashing: Standard feature on all models. Ventilation System Packages All packages are designed to meet your specific ventilation requirements utilizing one of six ventilation options for the product. The ventilation package is mounted within the unit eliminating the need for an exterior mounted hood or damper assembly on the unit. All assemblies can be factory installed, installed in the field at time of installation or as a retrofit system after installation. Standard - Barometric Fresh Air Damper Optional - Motorized Fresh Air Damper Optional - Blank Off Plate Optional - Commercial Room Ventilator With Exhaust CRV - Spring Return CRVP - Power Return Optional - Economizer With Exhaust Optional - Energy Recovery Ventilator With Built-in Exhaust Complies with efficiency requirements of ANSI/ASHRAE/IESNA.1-7. Certified to ANSI/ARI Standard 3-3 for SPVU (Single Package Vertical Units). Commercial Product - Not intended for Residential application. Page 1 of

2 Capacity and Efficiency Ratings MODELS SH21 SH311 SH31 SH431 SH41 SH Cooling 1 24, 2, 35, 42, 4, 55, EER High Temp Heating (47F) 1 21, 25, 33, 37,, 54, Low Temp Heating (17F) 1, 15, 1, 22, 2, 32, Capacity is certified in accordance with ANSI/ARI Standard EER = Energy Efficiency Ratio, = Coefficient of Performance and are certified in accordance with ANSI/ARI Standard 3-3. All ratings based on fresh air intake being % closed (no outside air introduction). Specifications 2 through 3 Ton SH21- B SH21- C SH311- A SH311- B SH311- C SH31- A SH31- B SH31- C / / /1. 7./ /1. 5.3/ / /7 55/ / 77/ / / / / / "-1 2"-1 2"-1 2"-1 2"-1 MODELS SH21- A Electrical Rating -- HZ 1 Operating Voltage Range 3 Compressor -- Circuit A Voltage 3/2 Rated Load Amps./13. 5 Branch Circuit Selection Current 3. 5 Lock Rotor Amps /5 Compressor Type Fan Motor & Condenser Fan Motor -- HP - RPM - SPD /5-5-1 Fan Motor -- Amps. 5 Fan -- DIA - CFM "-1 Motor & Evaporator Blower Motor -- HP - RPM - SPD /5-5-2 Blower Motor -- Amps. 4 CFM Cooling & E.S.P. w/filter (Rated - Wet Coil) -. Filter Sizes (inches) STD x 3 x 1 Shipping Weight -- LBS. 1 1/ / / / / x 3 x 1 1 x 3 x 1 1 x 3 x 1 1 x 3 x 1 1 x 3 x Specifications 3-1/2 through 5 Ton SH431-B SH431-C SH41-A SH41-B SH41-C SH-A SH-B SH-C / / / / / / 44 / 1/1 4 14/14 3/3 1 1/ / / MODELS SH431-A Electrical Rating -- HZ 1 Operating Voltage Range 3 Compressor -- Circuit A Voltage 3/2 Rated Load Amps.2/21. 7 Branch Circuit Selection Current 1. 7 Lock Rotor Amps 4/4 Compressor Type Fan Motor & Condenser Fan Motor -- HP - RPM - SPD / Fan Motor -- Amps. 5 Fan -- DIA - CFM 4"-2 Motor & Evaporator Blower Motor -- HP - RPM - SPD /4--3 Blower Motor -- Amps. CFM Cooling & E.S.P. w/filter (Rated - Wet Coil) -.15 Filter Sizes (inches) STD x 3 x 1 Shipping Weight -- LBS. 1 1/2--3 1/2--3 1/ x 3 x 1 5 Page 2 of

3 Ventilation System Packages Bard Wall-Mounts are designed to provide optional ventilation packages to meet all of your ventilation and indoor air quality requirements. All units are equipped with a barometric fresh air damper as the standard ventilation package. All ventilation packages can be built-in at the factory, or field-installed at a later date. BAROMETRIC FRESH AIR DAMPER - BFAD STANDARD The barometric fresh air damper is a standard feature on all models. It is installed on the inside of the service door and allows outside ventilation air, up to 25% of the total airflow rating of the unit, to be introduced through the air inlet openings and to be mixed with the conditioned air. The damper opens during blower operation and closes when the blower is off. Adjustable blade stops allow different amounts of outside air to be introduced into the building and can be easily locked closed if required. Barometric Fresh Air Damper BLANK OFF PLATE - BOP OPTIONAL A blank off plate is installed on the inside of the service door. It covers the air inlet openings which restricts any outside air from entering into the unit. The blank off plate should be utilized in applications where outside air is not required to be mixed with the conditioned air. MOTORIZED FRESH AIR DAMPER - MFAD OPTIONAL The motorized fresh air damper is internally mounted behind the service door and allows outside ventilation air, up to 25% of the total airflow rating of the unit, to be introduced through the air inlet openings and to be mixed with the conditioned air. The two position damper can be fully open or closed. The damper blade is powered open by a 24VAC motor with spring return on power loss. The damper can be controlled by indoor blower operation or can be field connected to be managed based on building occupancy. Motorized Fresh Air Damper NOTE: The above vent systems are intake only without built-in exhaust capability. Building will likely require separate field installed barometric relief or mechanical exhaust elsewhere within the conditioned space. Balancing dampers in the return air grille may be required to achieve specified amount of outdoor air intake. COMMERCIAL ROOM VENTILATOR - CRV OPTIONAL The built-in commercial room ventilator is internally mounted behind the service door and allows outside ventilation air, up to 5% of the total airflow rating of the unit, to be introduced through the air inlet openings. It includes a built-in exhaust air damper. Commercial Room Ventilator The commercial room ventilator (CRV) is a simple and innovative approach to improving the indoor 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 indoor blower operation or field controlled based on room occupancy. The CRV is power open - spring return on power loss. Complies with ANSI/ ASHRAE Standard.1 Ventilation for Acceptable Indoor Air Quality. Two Models Available: CRVS - spring return on power loss or deactivation CRVP - power return (will not close on power loss) ECONOMIZER - EIFM OPTIONAL The built-in economizer system is internally mounted behind the service door and allows outdoor air to be introduced through the air inlet openings. The amount of outdoor air varies in response to the system controls and settings defined by the end user. It includes a built-in exhaust air damper. The economizer is designed to provide free cooling when outside air conditions are cool and dry enough to satisfy cooling requirements without running the compressor. This in turn provides lower operating costs, while extending the life of the compressor. Economizer Energy Recovery Ventilator 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. Actuator Motor - 24 volt, power open, spring return with built in torque limiting switch. Proportioning Type Control - for maximum free cooling economy and comfort. Moisture Eliminator & Prefilter - permanent, washable aluminum construction. Enthalpy Control - adjustable to monitor outdoor temperature and humidity. Minimum Position Potentiometer - adjustable to control minimum damper blade position for ventilation purposes. Mixed Air Sensor - to monitor outside and return air to automatically modulate damper position. WALL-MOUNT ENERGY RECOVERY VENTILATOR - WERV OPTIONAL The wall-mount energy recovery ventilator (WERV) is a highly innovative approach to meeting indoor air quality ventilation requirements as established by ANSI/ASHRAE Standard.1. The WERV allows from to CFM (depending upon model) of fresh air and exhaust through the unit while maintaining superior indoor comfort and humidity levels. In most cases this can be accomplished without increasing equipment sizing or operating costs. Heat transfer efficiency is up to 7% during summer and % 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. The WERV is designed to be internally mounted behind the service door in the WA, WH or WL model wall-mount units. It can be built-in at the factory or field installed as an option. WERV-*3C and WERV-*5C can be independently adjusted for intake and exhaust rates. Page 3 of

4 Commercial Room Ventilator Performance Data : CRVS-3 and CRVP-3 SH21 & SH311 High Speed Total and Ventilation Airflow Total Air.15 ESP Vent Air.15 ESP SH21 & SH311 Low Speed Total and Ventilation Airflow Total Air.15 ESP Vent Air.15 ESP Page 4 of

5 Commercial Room Ventilator Performance Data : CRVS-5 and CRVP-5 SH31 High Speed Total and Ventilation Airflow Total Air.2 ESP Vent Air.2 ESP SH31 Medium Speed Total and Ventilation Airflow Total Air.2 ESP Vent Air.2 ESP SH31 Low Speed Total and Ventilation Airflow 1 1 Total Air.2 ESP Vent Air.2 ESP Page 5 of

6 Commercial Room Ventilator Performance Data : CRVS-5 and CRVP-5 SH431/SH41/SH High Speed Total and Ventilation Airflow Total Air.2 ESP Vent Air.2 ESP SH431/SH41/SH Medium Speed Total and Ventilation Airflow Total Air.2 ESP Vent Air.2 ESP Page of

7 Performance and Application Data - WERV-*5C (SH31, SH431, SH41 & SH) Ambient O.D. SUMMER COOLING PERFORMANCE (INDOOR DESIGN CONDITIONS DB/ WB) V ENTILATION RATE -- CFM V ENTILATION RATE -- 3 CF M VENTILATION RATE -- CF M DB/ W B F V L T V L S V L L H R T H R S H R L V L T V L S V L L H R T H R S H R L V L T V L S V L L H R T H R S HR L WERV-*5C WINTER HEATING PERFORMANCE (INDOOR DESIGN CONDITIONS 7 F DB) Ambient O.D. VENTILATION RATE 4 5 CFM 3 CF M CF M LEGEND: D B/ F W V L W H R W V L W H R W V L WH R VLT = Ventilation Load - Total VLS = Ventilation Load - Sensible VLL = Ventilation Load - Latent HRT = Heat Recovery - Total HRS = Heat Recovery - Sensible HRL = Heat Recovery - Latent WVL = Winter Ventilation Load WHR = Winter Heat Recovery Performance and Application Data - WERV-*3C (SH21 & SH311) NOTE: Sensible performance only is shown for winter application. SUMMER COOLING PERFORMANCE (INDOOR DESIGN CONDITIONS DB/ WB) CFM 25 VENTILATION RATE -- % EFFICIENCY CFM 325 VENTILATION RATE -- 4% EFFICIENCY CFM VENTILATION RATE -- 3% EFFICIENCY Ambient O.D. DB/ W B F V L T V L S V L L H R T H R S H R L V L T V L S V L L H R T H R S H R L V L T V L S V L L H R T H R S HR L WERV-*3C WINTER HEATING PERFORMANCE (INDOOR DESIGN CONDITIONS 7 F DB) 25 CFM 77% EFF. VENTILATION RATE 325 CFM 7% EFF. CFM % EFF. Ambient O.D. LEGEND: VLT = Ventilation Load - Total VLS = Ventilation Load - Sensible VLL = Ventilation Load - Latent HRT = Heat Recovery - Total HRS = Heat Recovery - Sensible HRL = Heat Recovery - Latent WVL = Winter Ventilation Load WHR = Winter Heat Recovery D B/ F W V L W H R W V L W H R W V L WH R application. winter for shown is only performance Sensible NOTE: Page 7 of

8 Clearances Required for Service Access and Adequate Condenser Air Flow MODELS LEFT SIDE RIGHT SIDE A ll Models 2" 2" Minimum Clearances Required to Combustible Materials MODELS 1 SUPPLY AIR DUCT FIRST THREE FEET 1 Refer to the Installation Manual for more detailed information. CABINET A ll Models 1 /4" " Dimensions of Basic Unit for Architectural and Installation Requirements (Nominal) MODEL WIDTH (W) DEPTH HEIGHT (D) (H) SUPPLY RETUR N A B C B E F G I J K L M N O P Q R S T SH21 SH SH31 SH SH41 SH All dimensions are in inches. Dimensional drawings are not to scale inches for model SH on lower two positions only. FRONT VIEW RIGHT SIDE VIEW BACK VIEW Page of

9 Electrical Specifications Single Circuit Dual Circui t Max. Circuit Exterior Fuse Field Power or Wire Size3 Crt. Bkr. 2 No. of Rated Minimum Maximum Field Field Min. Circuit Ground Circuit External Fuse Power Ground Volts, HZ Power Ampacity1 Wire Size3 Ampacity or Circuit Wire Size Wire Size Models and Phase Circuits 1 Breaker Ckt. A Ckt. B Ckt. A Ckt. B Ckt. A Ckt. B Ckt. A Ckt. B SH21-A, AZ A A * SH21-B, BZ B * SH21-C, CZ C * SH311-A, AZ A A * SH311-B, BZ B * 1 3 SH311-C, CZ C * SH31-A, AZ A5 1 or A or A 1 or D A * 1 or SH31-B, BZ B * B * SH31-C, CZ C * C * SH431-A, AZ A5 1 or A or A 1 or D A * 1 or SH431-B, BZ B * B * 1 SH431-C, CZ C C * SH41-A, AZ 1 4 -A5 1 or A or A 1 or D A * 1 or SH41-B, BZ B * B * 1 57 SH41-C, CZ C C * SH-A, AZ 1 4 -A5 1 or A or A * 1 or A2 * 1 or SH-B,BZ B * 1 5 SH-C, CZ C * * These heater KW sizes available in dehumidification models. These electrical ratings also apply to dehumidification models unless listed separately and marked with footnote 5. 1 These Minimum Circuit Ampacity values are to be used for sizing the field power conductors. Refer to the National Electrical Code (latest version), Article 3 for power conductor sizing. Caution: When more than one field power circuit is run through one conduit, the conductors must be derated. Pay special attention to note of Table 3 regarding Ampacity Adjustment Factors when more than three (3) conductors are in a raceway. 2 Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors. 3 Based on C copper wire. All wiring must conform to the National Electrical Code and all local codes. 4 Maximum KW that can operate with the heat pump on is KW. 5 Maximum KW that can operate with the heat pump on is 5KW. Maximum KW that can operate with the heat pump on is 4KW. IMPORTANT: While this electrical data is presented as a guide, it is important to electrically connect properly sized fuses and conductor wires in accordance with the National Electrical Code and all local codes. Page of

10 Indoor Blower Performance - CFM at 23 or 4 Volts ESP in Inches Water Column SH21, SH311 SH31 SH431, SH41 SH High Speed Dry/Wet Coil Low Speed Dry/Wet Coil High Speed Med. Speed Dry/Wet Coil Dry/Wet Coil Low Speed Dry/Wet Coil High Speed Med. Speed High Speed Dry/Wet Coil Dry/Wet Coil Dry/Wet Coil Dry/Wet Low Speed Coil. 5/ 5/ 15/ / /1 1/155 14/13 1/155 1/ /5 4/ 14/ /1 / 155/1 13/5 1/1 1/5. 2 / / 135/115 1/25 /5 1/5 5/ 1/135 1/115 Above data is with 1" standard disposable or 1" washable filter For optional 2" pleated filter - reduce ESP by. in. Recommended (factory connected ) motor speed for ducted installation: SH21, SH311, SH31: Medium Speed SH431, SH41, SH: High Speed Reconnect to next lower speed for free blow (non-ducted) installation. Electric Heat Table - Refer to Electrical Specifications for Availability by Unit Model Nominal KW Heater Packages - Field Installed, For Standard (Non-Dehumidification) Models Designed for adding Electric Heat to KW Units Circuit Breaker Standard on All Models Heat Pump Models SH21 SH311 SH31 SH431 SH41 SH A t 24V (1) A t 2V (1) A t 4V (2) At 4V (2) Kw 1-Ph Amps 3-Ph Amps Btuh , , , , , , , (1) These electric heaters are available in V units only. (2) These electric heaters are available in 4V units only. -A Models 21 Heater Model # EHSH31-A4 EHSH31-A EHSH31-A4 EHSH31-A EHWH3-A5 EHWH4-A EHWH4-A EHWH4-A5 EHWH4-A EHWH4-A EHWH1-A5 EHWH1-A EHWH1-A EHWH1A-A2 Kw 1-Ph Amps 3-Ph Amps Btuh , , , , , , ,15 UL Liste d CUL Liste d -B Models -C Models K W Heater Model # K W Heater Model # KW 4 EHSH31-B EHSH31-C 4 EHSH31-B EHSH31-C EHWH3-B EHWH3-B EHWH4-B EHWH4-B Kw 3-Ph Amps Btuh Kw EHWH42-C EHWH5A-C EHWH42-C EHWH5A-C 3-Ph Amps Btuh , , , ,2 EHWH4-B EHWH5A-C Heater Packages - Field Installed, For Dehumidification Models Only Designed for adding Electric Heat to KW Units Circuit Breaker Standard on All Models Heat Pump Models SH21D SH311D -A Models 21 Heater Model # EHSH31-A4 EHSH31-A EHSH31-A4 EHSH31-A SH31D EHWH3DA SH431D, SH41D EHWH4DA SHD EHWH1DA UL Liste d CUL Liste d -B Models -C Models K W Heater Model # K W Heater Model # KW 4 EHSH31-B EHSH31-C 4 EHSH31-B EHSH31-C EHWH3DB EHWH3DB HWH4DB HWH1DB EHWH42-C EHWH3DC HWH4DC HWH1DC 1 E E 1 E E Page of

11 Cooling Application Data - Outdoor Temperature F 1 Model SH21 SH311 SH31 SH431 SH41 SH D.B./W.B. 2 / / 7 5/ 72 / / 7 5/ 72 / / 7 5/ 72 / / 7 5/ 72 / / 7 5/ 72 / / 7 5/ 72 Cooling Capacity F F 5 F F 5 F F 5 F 1 F 115 F 23, 1, 25, 1, 3, 1, 27, 2, 2, 1, 35, 2, 3, 3, 41, 2, 4, 2, 44, 35, 47, 34, 5, 35, 4, 3,, 34,, 35, 5, 4, 5, 3, 71, 3, 23, 1, 25, 1, 2, 1, 2, 2, 2, 1, 33, 1, 3, 2, 3, 2, 4, 2, 42, 34, 4, 33, 53, 34, 4, 35, 51, 34, 5, 34, 54, 3, 5, 3,, 3, 1 Below F, unit requires a factory or field installed low ambient control. 2 Return air temperature F. 22, 1, 24, 1, 2, 1, 25, 1, 2, 1, 32, 1, 34, 2, 3, 2, 43, 2, 4, 33, 44, 32, 51, 32, 44, 34, 4, 33, 57, 33,, 3, 57, 3,, 3, 21, 17, 24, 17, 27, 17, 24, 1, 27, 1, 31, 1, 32, 27, 3, 27, 41, 27, 3, 31, 43, 31, 4, 31, 42, 33, 4, 33, 54, 32, 5, 37, 5, 37, 3, 37, 2, 17, 24, 17, 2, 17, 23, 1, 2, 1, 2, 1, 3, 2, 35, 27, 3, 2, 3, 3, 42, 31, 4, 3, 4, 32, 4, 32, 51, 31, 4, 3, 55, 37, 1, 3, 2, 1, 23, 17, 25, 1, 22, 17, 25, 1, 2, 17, 2, 2, 34, 2, 37, 25, 34, 3, 4, 3, 44, 2, 3, 31, 44, 31, 4, 3,, 35, 53, 3, 5, 35, Capacity Airflow Total 1, 1, 23, 1, 24, 1, 21, 17, 24, 17, 2, 1, 2, 25, 33, 2, 3, 24, 32, 2, 3, 2, 41, 2, 3, 3, 42, 31, 4, 2, 43, 34, 51, 35, 55, 33, 1, 1, 22, 1, 23, 15, 2, 1, 24, 17, 25, 1, 27, 24, 32, 25, 34, 24, 3, 2, 3, 2, 3, 27, 34, 2, 4, 3, 43, 2, 41, 33, 4, 34,, 32, Factors ate , 15, 21, 1, 22, 15, 1, 1, 23, 1, 24, 15, 2, 24, 31, 25, 33, 23, 2, 27, 34, 2, 3, 2, 31, 2, 3, 2, 4, 27, 3, 32, 4, 33, 4, 3, Multiplier % of Rated - R d Sensible Heating Application Rating & Outdoor Temperature F* Model o F 5 o F o F 15 o F 2 o F 25 o F 3 o F 35 o F 4 o F o F 5 o F 55 o F o F 7,,, 11, 13, 14, 15, 15, 1, 2, 21, 23, 24, SH21 WATTS , 11,, 14, 15, 15, 1, 1, 2, 23, 2, 27, 2, SH311 WATTS ,, 15, 17, 1, 2, 22, 23, 27, 31, 34, 3, 3, SH31 WATTS , 15, 1, 21, 23, 2, 2, 31, 33, 3, 3, 41, 44, SH431 WATTS , 21, 24, 2, 2, 32, 34, 3, 41, 43, 4, 4,, SH41 WATTS , 23, 2, 3, 32, 33, 34, 35, 43, 5, 5, 5, 3, SH WATTS * 7 F DB indoor return air at rated CFM includes defrost operation below. Page 11 of

12 Heat Pump Wall-Mount Model Nomenclature SH 3 1 A 5 X X X X X B MODEL NUMBER CAPACITY 2-2 Ton 31-2½ Ton 3-3 Ton 43-3½ Ton 4-4 Ton 1-5 Ton REVISION SPECIALTY PRODUCTS 4 (Non-Standard) Ventilation Options 1 These vents are without exhaust capability and may require separate field installed barometric relief elsewhere within the conditioned space. 2 Intake and exhaust can be independently adjusted. Color option must be specified to match unit (X = Beige, 4 = Buckeye Gray) Factory Installed Code Number VOLTS & PHASE A - //1 B - //3 C - 4//3 Field Installed Part Number B CMH-3 E CMH-7 Low Pressure Control 1 Low Ambient Control and Relay 2 O CMH- Field Installed Only Field Installed Only 5 Field Installed Only All Models Except SH-A Field Installed Only SH-A Only KW1 Z - KW2 4-4KW 5-5KW - KW - KW - KW -KW 2-2KW VENTILATION OPTIONS (See Table) FILTER OPTIONS X - 1-Inch Fiberglass (Standard) W - 1-Inch Washable P - 2-Inch Pleated Description CMH-14A CMC-1 3 COLOR OPTIONS X - Beige 1 - White 2 - Mesa Tan 4 - Buckeye Gray 5 - Desert Brown - Dark Bronze Start Kit 3 Start Kit 4 SK111 4 SK113 4 OUTLET OPTIONS X - Front (Standard) 1 Not all KW available on all models. See pages & for details. 2 Z is KW and circuit breaker (V) or toggle disconnect (4V). Use for KW and no circuit breaker or disconnect. 3 Includes reheat coil on dehumidification models, if applicable. 4 Insert D for dehumidification with hot gas reheat. Reference Form F171 for complete details. Outdoor Thermostat 5 CONTROL MODULES (See Chart Below) COIL OPTIONS X -Standard 1 - Phenolic Coated Evaporator3 2 - Phenolic Coated Condenser 3 - Phenolic Coated Evaporator and Condenser3 MODELS SH21, SH311 SH31, SH431, SH41, SH DESCRIPTION Factory Installed Field Installed Factory Installed Field Installed Code No. Part No. Code No. Part No. Barometric Fresh Air Damper - No Exhaust 1 - Standard X BFAD-3 X BFAD-5 Blank-Off Plate B BOP-3 B BOP-5 Motorized Fresh Air Damper - No Exhaust 1 M MFAD-3 M MFAD-5 Commercial Ventilator - Spring Return w/exhaust V CRVS-3 V CRVS-5 Commercial Ventilator - Power Return w/exhaust P CRVP-3 P CRVP-w/Exhaust Economizer (Internal) - Fully Modulating E EIFM-3 C E EIFM-5 C Energy Recovery Ventilator w/built-in Exhaust 23V R WERV-A3C - 2 R WERV-A5C - 2 Energy Recovery Ventilator w/built-in Exhaust 4V R WERV-C3C - 2 R WERV-C5C - 2 Heat Pump Control Modules 1 The low pressure control is auto reset. It includes a lockout feature and is resettable from the wall thermostat. All low pressure controls use a timed bypass circuit to prevent nuisance tripping during low temperature start-up. 2 The low ambient control includes an 21- (fan relay) and permits cooling operation down to F. 3 PTCR start kit can be used with all -A single phase models. Increases starting torque 2-3x. Not used for -B or -C three phase models. Do not use if SK111 or SK113 is used. 4 Start capacitor and potential relay start kit can be used with all -A single phase models. Increases starting torque x. Not used for -B or -C three phase models. Do not use if CMC-15 is used. 5 The outdoor thermostat is adjustable from F to 5 F. It is suitable for use as a compressor cut-off thermostat. NOTE: Standard heat pump control board has a 5-minute compressor anti-short cycle timer. Page of Bard Manufacturing Company, Inc. Bryan, Ohio Due to our continuous product improvement policy, all specifications subject to change without notice. Before purchasing this appliance, read important energy cost and efficiency information available from your retailer. Form No. S335 February,