The Wall-Mount Variable Capacity Environmental Control Units. Green Refrigerant

Transcription

1 The Wall-Mount Variable Environmental Control Units Bard is an ISO 00:200 Certified Manufacturer, 5 and -Ton Variable ECU Dual /50 Hz Frequency Cooling Op Range -40F to +F ODT The Bard Variable ECU design is a world-class machine designed to operate from -40F to +F outdoor temperature range. All versions employ a digital compressor capable of continuously modulating capacity from 0% down to 20%, controlled by a Bard digital thermostat/controller that is supplied with each ECU. The indoor and outdoor motors are also ECM variable speed to maintain peak airflow performance under all conditions. All ECU's are dual /50 Hz frequency rated suitable for use anywhere in the world within the specified operating voltage range. These ECU's are the ideal product for all applications where extreme duty conditions exist and must be able to operate with whatever power supply is available - be it shore power or standby power supply. Engineered Features Aluminum Finned Copper Coils: Grooved tubing and enhanced louvered fin for maximum heat transfer and energy efficiency. Phenolic coated coils available and recommended for maximum durability in all harsh environments. ECU Compressor: Digital scroll compressor is used in all models providing /50 Hz operation and variable capacity from 0% down to 20% allowing continuous operation while matching the cooling load of the structure. Crankcase heaters are standard. PTCR motor starting device standard on -phase. Thermostatic Expansion Valve: For wide range refrigerant control. Indoor and Outdoor Motors: Both motors are ECM variable speed design to maintain performance and air delivery under all conditions. Outdoor condenser motor is totally enclosed and has modulating low ambient feature. Twin Blowers: All ECU's have a twin blower system and ECM motor with overload protection. R-4A Refrigerant: Designed with R-4A (HFC) non-ozone depleting refrigerant in compliance with the Montreal protocol and 20 EPA requirements. Phase Rotation Monitor: Standard on all phase scroll compressors. Protects against reverse rotation if power supply is not properly connected. Galvanized 20 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 textured enamel, which allows it to withstand 00 hours of salt spray tests per ASTM B7-0. Aluminum and Stainless Steel cabinets are also available. Stainless Steel recommended for maximum durability in all harsh environments. Digital Thermostat/Controller: A dedicated thermostat/controller is standard and supplied with each ECU. This device is required for proper operation of the ECU. Components: Are easily accessible for routine inspection and maintenance through an Extreme Duty water and dust tight gasketed and insulated door. Door is equipped with 2 locking cam latches providing access to the circuit breaker or toggle (4/400V only) disconnect switch. Internal control panel cover is easily removable if required. Extreme Duty door is standard. See Nomenclature on Page for Optional Moderate Duty flush control panel cover. Electric Heat Strips: Features an automatic limit and thermal cut-off safety control. Heater packages can be factory or field installed. Filter Service Door: Separate service door provides easy access for filter change. One Inch, Disposable Air Filters: Are standard equipment. Optional one inch washable filters available and filter racks permit the addition of 2" pleated filter. Factory or field installed. Condenser Fan and Motor Shroud Assembly: Slides out for easy access. Green Refrigerant R-4A Barometric Fresh Air Damper: Standard on all units. Allows up to 25% outside fresh air, intake only. Actual amount of outdoor air introduced governed by other building systems. Optional blank-off plate available. Built-in Circuit Breakers: Standard on all electric heat versions of single (20/20 volt) and three phase (20/20 volt) equipment. Toggle disconnects are standard on all electric heat versions of three phase (4 volt) equipment. Liquid Line Filter Drier: Standard on all units. Protects system against moisture. Compressor Control Module: Standard on all units. Built-in off-delay timer adjustable from 0 seconds to 5 minutes. 2-minute on-delay if power interrupt. 20-second bypass for low pressure control, and both soft and manual lockouts for high and low pressure controls. Alarm output for alarm relay. Refrigerant Alarm Relay: Standard on all units. SPDT dry contacts offer both N.O. and N.C. alarm strategy capability. High & Low Pressure Switches are Auto-Reset: Standard on all units. Built-in lockout circuit resets from the room thermostat. Provides commercial quality protection to the compressor. Accumulator: Standard on all models for refrigerant management. Foil Faced Insulation: Standard on all units. Full Length Mounting Brackets: Built into cabinet for improved appearance and easy installation. NOTE: Bottom mounting bracket included to assist in installation. Slope Top: Standard feature for water run-off. Top Rain Flashing: Standard feature on all models. PTCR Motor Starting Device: Optional on -phase models, increases compressor motor starting torque 2- times. Optional factory or field installed hard start kit available, replaces PTCR device. Form No. S42-4 Supersedes S42- Page of

2 Wall Mount Variable Environmental Control Units (ECU) Number WRV2-R WRV2-S WRV2-T WLV2-R WLV2-S WLV2-T W5RV2-R W5RV2-S W5RV2-T Configuration Wall-Mount Wall-Mount Wall-Mount Compressor & Control Access Right Side Left Side Right Side Hz 50 Hz Rated (),000 (.),000 (.) 54,000 (5.) EER Modulation Range () 7,400 -,000 (2.7 to.) 7,400 -,000 (2.7 to.),00-54,000 (. to 5.) Nominal () 2,000 (.) 2,000 (.) 4,000 (4.0) Modulation Range (),740-2,000 (.7 to.),740-2,000 (.7 to.),40-4,000 (2. to 4.0) Electric Heat Options at 240 or 40V 5,,, 2 5,,, 2, 20,, 5 W5LV2-R, 20 54,000,00-54,000 4,000,40-4,000 W5LV2-S Wall-Mount Left Side.0, (5.) (. to 5.) (4.0) (2. to 4.0) W5LV2-T, 5 WRV2-S 7,000,0-7,000,000 2,0 -,000, Wall-Mount Right Side.0 WRV2-T (.4) (. to.4) (7.7) (. to 7.7), 5 WLV2-S 7,000,0-7,000,000 2,0 -,000, Wall-Mount Left Side.0 WLV2-T (.4) (. to.4) (7.7) (. to 7.7), 5 Rated capacity and EER at 5F outdoor and 0F DB/7F WB in accordance with ANSI/AHRI Standard and compressor operating at 0% output. Number WRV2-R WRV2-S WRV2-T WLV2-R WLV2-S WLV2-T W5RV2-R W5RV2-S W5RV2-T W5LV2-R W5LV2-S W5LV2-T WRV2-S WRV2-T WLV2-S WLV2-T Hz 50 Hz Hz Rating 20/ / / / / / / / / / Hz Operating Range Hz Rating Hz Operating Range Wiring System 2 wire + ground wire + ground wire + ground 2 wire + ground wire + ground wire + ground 2 wire + ground wire + ground wire + ground 2 wire + ground wire + ground wire + ground wire + ground wire + ground wire + ground wire + ground Outdoor Operating Range -40F to +F -40F to +F -40F to +F -40F to +F -40F to +F -40F to +F Cabinet Size H x W x D Inches (cm) x.20 x 7. (7.25 x 7.0 x 4.50) x.20 x 7. (7.25 x 7.0 x 4.50) 4. x 42.0 x 22.4 (25.5 x.7 x 5.) 4. x 42.0 x 22.4 (25.5 x.7 x 5.) 4. x 42.0 x 22.4 (240. x.7 x 5.) 4. x 42.0 x 22.4 (240. x.7 x 5.) Number Shipping Weight Lbs (Kg) WRV/WLV-R WRV/WLV-S WRV/WLV-T W5RV/W5LV-R W5RV/W5LV-S W5RV/W5LV-T WRV/WLV-S WRV/WLV-T 420 () 420 () 420 () 0 (250) 0 (250) 0 (250) 0 (2) 0 (2) Ratings Environmental Control Unit Major Components Number WRV2 / WLV2-R WRV2 / WLV2-S WRV2 / WLV2-T W5RV2 / W5LV2-R W5RV2 / W5LV2-S W5RV2 / W5LV2-T WRV2 / WLV2-S WRV2 / WLV2-T Hz 50 Hz Compressor Indoor Motor Outdoor Motor 20/20 20/ /20 20/ /20 4 Phase Operating Range Phase Operating Range RLA LRA HP FLA HP FLA 5./7../ /22. 4./5. 7./ / /2 /2 /2 /4 /4 /4 /4 / /2 /2 /2 /2 /2 /2 /2 / Indoor Blower Performance CFM (0.00" " H 2 O) CFM will modulate from 0% down to 50% to match system capacity modulation as standard operation. There is an option in the thermostat/controller schedule to lock the CFM at the rated 0% value. Form No. S42-4 Supersedes S42- Page 2 of MODELS Rated CFM Rated CFM CFM Modulation Range j Filter Size WRV2 / WLV " 0-0 x 0 W5RV2 / W5LV " x 0 WRV2 / WLV " x 0

3 Specifications MODEL Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors. Based on 75C copper wire. All wiring must conform to the National Code and all local codes. These Minimum Circuit Ampacity values are to be used for sizing the field power conductors. Refer to the National code (latest version), Article 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 regarding Ampacity Adjustment Factors when more than three () current carrying conductors are in a raceway. * Top outlet supply option is available only factory installed and only on the selected models. 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 Code and all local codes. Heater Packages - Field Installed Designed for adding Electric Heat to 0 Units Circuit Breaker Standard on 20/20V s Electric Heat Table 240V or 50Hz MODELS WRV2 W5RV2 WRV2 WLV2 W5LV2 WLV2 Rating: Volts Hz Phase WRV2 / WLV2-R0Z 20/20-- R R WRV2 / WLV2-S0Z 20/20-- S0-50- S0 WRV2 / WLV2-T0Z T0 T W5RV2 / W5LV2-R0Z 20/20-- R -50- R20 W5RV2 / W5LV2-S0Z 20/20-- S0-50- S W5RV2 / W5LV2-T0Z T0 T WRV2 / WLV2-S0Z 20/20-- S0-50- S WRV2 / WLV2-T0Z T0 T5 No. Field Power Circuits or 2 or 2 or or 2 or 2 or 2 l Minimum Circuit Ampacity R s 20/20- ETL US & Canada Listed Toggle Disconnect Standard on 4V s -S s 20/20- -Phase Heater Ratings at Other Applied s -T s 4- Heater # Heater # Heater # EHWV0-A05 EHWV0-A EHWV05-A EHWV05-A20 EHWV0-A05L EHWV0-AL EHWV05-AL EHWV05-A20L Single Circuit j Maximum Overcurrent Protection k Field Power Wire Size 4 4 I/0 2 4 k Ground Wire 4 2 l Minimum Circuit Ampacity EHWV0-B0 EHWV0-B0 EHWV05-B0 EHWV05-B EHWV0-B0 EHWV0-B EHWV0-B0L EHWV0-B0L EHWV05-B0L EHWV05-BL EHWV0-B0L EHWV0-BL j Maximum Overcurrent Protection At 240V At 20V At 220V At 20V At 200V , , ,5..7 2,.0.47, ,0 4..,..40 2, ,2..4 2, , , , , , V or 50Hz Multiple Circuit k Field Power Wire Size EHWA-C0 EHWA-C2 EHW05A-C0 EHW05A-C5 EHW05A-C0 EHW05A-C5 EHWAHC0L EHWAHC2L EHW05L-C0 EHW05L-C5 EHW05L-C0 EHW05L-C5 k Ground Wire Ckt. A Ckt. B Ckt. C Ckt. A Ckt. B Ckt. C Ckt. A Ckt. B Ckt. C Ckt. A Ckt. B Ckt. C -Phase Heater Ratings at Other Applied s At 240V or 40V At 20V or 4V At 220V or 440V At 20V or 45V At 200V or 400V 240/40V 20/4V /440V /45V /400V.0 20,47 4.4/ ,0./ ,202.2/ , 2.5/ ,22 2.0/.0.0 0,77 2.5/..27 2, / ,02.5/.2.7 2,072.7/..25 2,.04/ ,5 2.7/ , 27.7/..0 4,40 2.4/.2.0 0, /2.4. 2, / ,5.0/ ,0 4.5/ ,004.0/.54.27,45.27/ ,5 0.07/5.04.0,44 4.0/ , / ,./ ,44 7.5/ ,.0/.04 Form No. S42-4 Supersedes S42- Page of

4 ECU OPERATING CONTROL SYSTEM The WR/LV2 through WR/LV2 variable capacity air conditioners utilize dedicated controllers and components to optimize this unit for cooling operation from -40 degrees F up to degrees F (-40 degrees C to + degrees C). These units are dual rated for V operation on both 50 and Hz. Please read the following sequence of operation before attempting any troubleshooting or repair. Troubleshooting and repair procedures will be outlined later (Page 5). These models use a digital compressor and variable speed indoor and outdoor motors. The motors and compressor must be replaced with the exact same component to maintain the above stated temperature and voltage ranges of operation. The units are controlled by a Bard digital thermostat/controller. This thermostat/controller contains proprietary programming and must be placed with the exact same component to ensure proper operation. -conductor gauge control cable should be used for making connections from thermostat/controller to the ECU. Lead/Lag sequence available by special application of the 40-0 Digital Controllers. Consult ECU Installation Instructions. DIGITAL THERMOSTAT/CONTROLLER TERMINAL FUNCTION TYPE FORM +B MSTP + (not used) Communications -A MSTP - (not used) Communications IN4 Outdoor Temperature Sensor Input K OHM Type IN Pressure Transducer Input 0-5 VDC, PSIG GND Sensor Grounds Input IN2 Lockout Alarm Input Relay Closure 24 COM 24VAC Com Power 24V 24VAC Power OUT Fan Motor Control Analog Output 0-VDC GND7- Control Ground Analog Output OUT Unloader Solenoid Control Analog Output 0 or 5VDC PWM OUT 7 Blower Motor Control Analog Output 0-VDC RLY 4 Heater Contactor # Relay Output Relay SC 4-24VAC to Relay Outputs 4- Power RLY 5 Heater Contactor #2 Relay Output Relay RLY (not used) RLY (not used) SC- 24VAC to Relay Outputs - Power RLY 2 Compressor Contactor Relay Output Relay RLY (not used) 40-0 DIGITAL CONTROLLER +B -A IN4 IN GND IN2 24 COM 24V OUT GND 7- OUT OUT 7 RLY SC 4- RLY 5 RLY 4 RLY SC - RLY 2 RLY UNIT LOW VOLTAGE TERMINAL BLOCK F E Y G W W2 Y R C MIS-252 C Form No. S42-4 Supersedes S42- Page 4 of

5 SEQUENCE OF OPERATION MODES OF OPERATION Cool Only Mode: Compressor will modulate from 0% down to 20%. Compressor will cycle off if thermostat/controller set-point is reached. Heat Only Mode: Electric heat Stage operates at st -stage heating set-point. Electric heat Stage 2 (if equipped) operates on 2 nd -stage (-2F below heating set-point). Auto Mode: Cooling or heating automatically selected based on building temperature vs. thermostat/controller set-points and operates as described above. CCVC (Continuous Compressor Variable ): Compressor will modulate from 0% down to 20%. Compressor will not cycle off if thermostat/controller set-point is reached, and would stay running at the 20% minimum capacity. If space temperature drops -2F below cooling set-point electric heat Stage will then cycle to maintain that condition. If Stage 2 electric heat is installed, and if required, will cycle at -4F below cooling set-point to maintain that condition. If CCVC is terminated the controller will revert to Cool or Auto operation. CCVC would be an Operating Mode for all applications where continuous run of the compressor is a requirement. CCFC (Continuous Compressor Fixed ): The compressor is turned ON and locked ON as long as the thermostat/controller is in CCFC. When in CCFC the compressor does not modulate but will be locked ON at 0% capacity. If space temperature drops -2F below cooling set-point electric heat Stage will then cycle to maintain that condition. If Stage 2 electric heat is installed, and if required, will cycle at -4F below cooling set-point to maintain that condition. If CCFC is terminated the controller will revert to Cool or Auto operation. CCFC would not be considered an Operating Mode and should only be used for system testing as required. Indoor Blower Operation The indoor blower speed will modulate with the compressor operation from 50% to 0% of operation. Once compressor operation is at 50 or below, percent airflow will be at 50% and no further reduction of airflow will occur. Modulation is accomplished by modulating a 0- volt signal from OUT 7 to the indoor blower motor. An additional option to maintain airflow at 0% is also available. Outdoor Fan Motor Operation The outdoor fan motor speed is varied in response to outdoor air temperature and pressure. The fan motor will cycle on and off with the compressor when not in a CCVC or CCFC. At all times above 22 degrees OAT, the outdoor fan, OUT, will be energized at high speed. From 22 degrees to degrees the outdoor fan, OUT, will be set at normal outdoor airflow. Below degrees the outdoor fan will modulate to maintain a 00 psi head pressure. This will act as a low ambient fan cycling control. The output may go to zero output to maintain the 00 PSI. The outdoor ECM motor will be programmed with a minimum RPM allowed to protect the bearing system. Any signal that is less than the percent torque required to maintain the minimum RPM will cause the motor to shut off. Once head pressure rises the motor will restart. COOLING SEQUENCE Compressor Operation The cooling capacity of the WV series is controlled by loading or unloading the compressor. On a call for cooling, the unloader solenoid is energized for one second to ensure pressure equalization in the compressor. The compressor contactor, RLY 2, is then energized and the compressor will start. A PI control loop then calculates the compressor capacity needed to reach set point and modulates the compressor. Modulation range is from 20% to 0% capacity. Modulation is accomplished by a pulse width modulated signal from OUT which energizes the solid state relay (SSR) and energizes or de-energizes the unloader solenoid. The required compressor capacity is calculated every 5 seconds. 20% load means 0 VDC for.0 seconds and 5 VDC for 2.0 seconds from OUT. 0% load means 0 VDC for 4.5 seconds and 5 VDC for.5 seconds from OUT. 40% load means 0 VDC for.0 seconds and 5 VDC for.0 seconds from OUT. 50% load means 0 VDC for 7.5 seconds and 5 VDC for 7.5 seconds from OUT. % load means 0 VDC for.0 seconds and 5 VDC for.0 seconds from OUT. 70% load means 0 VDC for.5 seconds and 5 VDC for 4.5 seconds from OUT. 0% load means 0 VDC for 2.0 seconds and 5 VDC for.0 seconds from OUT. 0% load means 0 VDC for.5 seconds and 5 VDC for.5 seconds from OUT. 0% load means 0 VDC for 5 seconds and 5 VDC for 0.0 seconds from OUT. HEATING SEQUENCE On a call for heating, if the space temperature falls F below setpoint, the first stage of heating, RLY 4, will cycle ON. If the space temperature falls F below setpoint, the second stage of heating, RLY 5, will cycle ON. Indoor Blower airflow is maintained at the Rated unit airflow at all times during heating. ADDITIONAL SOFTWARE FEATURES COOLING MODE High ambient operation mode - Unit will modulate capacity down above 25 degrees outdoor temperature. The thermostat/controller display will indicate high ambient operation mode when this occurs. High head pressure operation mode - When the unit head pressure exceeds PSI, the Unit will modulate capacity pressure down until it is at or below 0 psi. Controls will indicate head pressure control mode on the display when this occurs. Form No. S42-4 Supersedes S42- Page 5 of

6 Cooling Application Data Hz - Outdoor Temperature () WRV2 WLV2 W5RV2 W5LV2 WRV2 WLV2 (DB/WB) 75 / 2F (2./.7C) 0 / 7F (2.7/.4C) 5 / 72 (2.4/22.2C) 75 / 2F (2./.7C) 0 / 7F (2.7/.4C) 5 / 72 (2.4/22.2C) 75 / 2F (2./.7C) 0 / 7F (2.7/.4C) 5 / 72 (2.4/22.2C) Cooling 75 F (2.C) 5 F (2.4C) 5 F (5.0C) 5 F (40.C) 5 F (4.C) 25 F (5.7C) F (C),00 (.) 5,500 (.40),400 2,0 (.7) 2,000 (.20) 2,00 Return air temperature at 50% R.H. Application data based on compressor at 0% capacity operating as CCFC up to 25 F. Above 25 F compressor capacity will modulate lower as required to stay below PSIG and stay on-line. (.20) (7.70) 27,500 24,00 42,0 (2.4),400 (.54),000 (.54) 2,400 2,700 (.4) 27,700 (.) 2,500 (7.7) 24,00 (.05) (7.2) (.4) (7.2) 2,00 22,200 2,0 2,0 50,00 (4.) 45,00 (.27) 40,000 (.7) 5,000 (.25) 0,0 2,400 (.) 27,00 (.7) 2,000 (7.) 2,00 (.7) 2,00 (.7) (.50) (.) (.77) (.2) (.24) 20,0 20,000 24,500 2,000 25,200,0 (5.) (5.0) (7.2) (.20) (7.44) (5.4),700 (.5),400 (.22) 47,000 (.7) 4,500 (2.5),0 (.0) 7,00 (.07) 4,500 (4.20) 44,000 (2.) 40,200 (.77) 7,0 (.7) 4,400 (.07) 2,400 (.4) 7,200 (20.5),500 (.0) 54,000 (5.) 4,000 (4.5) 4,400 (.5) 4,0 (.50) 47,000 (.7) 4,0 (2.77) 40,0 (.),000 (.) 5,00 (.4) 4,0 (.) 4,00 (24.4) 70,0 (20.),000 (7.57) 52,00 (5.4) 4,00 (4.2) 47,400 (.) 4,0 (4.0) 4,00 (2.),00 (.),200 (.),000 (.) 0,200 (.4) 7,0 (20.2) 4,00 (.) 5,00 (7.07) 5,00 (5.7) 45,000 (.) 7,00 (.07) 50,400 (4.7) 4,700 (4.2) 45,00 (.44) 42,00 (2.) 7,00 (.07) 2,400 (.4) 75,00 (22.2) 72,000 (2.0) 7,000 (.2),0 (7.) 54,0 (5.4) 4,0 (.50) 4,00 (4.2) 4,200 (4.2) 4,00 (.5) 4,400 (2.7),00 (.5) 4,0 (.) 0,400 (2.4) 2,700 (24.22) 74,400 (2.7) 5,00 (.0) 5,00 (.) 47,400 (.) 50,0 (4.7) 4,400 (4.7) 45,400 (.0) 4,400 (2.2),200 (.) 0,200 (.4) 5,20 2,,420,20,,20 2,520 2,240 7,200 2,,240 2,240 5,475 2,50 4,200 0,450 44,400 2,25 (4.4) (.7) (5.40) (.0) (5.5) (.4) (.5) (.27) (.0) (.70) (.20) (7.) (.) (.4) (2.) (.2) (.0) (7.) Cooling Application Data 50 Hz - Outdoor Temperature () WRV2 WLV2 W5RV2 W5LV2 WRV2 WLV2 (DB/WB) 75 / 2F (2./.7C) 0 / 7F (2.7/.4C) 5 / 72 (2.4/22.2C) 75 / 2F (2./.7C) 0 / 7F (2.7/.4C) 5 / 72 (2.4/22.2C) 75 / 2F (2./.7C) 0 / 7F (2.7/.4C) 5 / 72 (2.4/22.2C) Cooling 75 F (2.C) 5 F (2.4C) 5 F (5.0C) 5 F (40.C) 5 F (4.C) 25 F (5.7C) F (C),400 (.) 2,400 27,000 (7.) 25,500 (.4) (7.47) 2,0 24,000,00 (.) 5,00 (.5) 2,00 2,200 (7.7) 25,00 (7.4) 24,200 (.) (7.0) (.) (7.0) 25,0 22,200 2,500 22,700 4,00 (.5) 4,00 (2.),400 (.),00 2,00 (7.5) 25,400 (7.44) 2,700 (.4) 2,700 (7.5) (.50) (.4) (.5) (.4) (.) Return air temperature at 50% R.H. Application data based on compressor at 0% capacity operating as CCFC; see description page 5. 2,700 20,00 2,0 2,0 27,400,400 (.) (5.5) (7.4) (.) (.02) (5.),00,200 22,00,200 2,000 7,000 (5.40) (5.7) (.5) (5.7) (.7) (5.02),00,50,00 2,0 7,20,00,700 (7.7) 50,500 (4.7) 42,00 (2.5) 7,00 (.07) 5,200 (.) 4,400 (.07) 27,40 44,200 (2.4) 40,0 (.74),0 (.72),00 (.0),400 (.20) 2,500 (.4) 25,7 4,00 (.) 5,000 (.40) 4,200 (4.4) 44,0 (.0) 42,00 (2.) 42,000 (2.0),0 42,00 (2.5),700 (.) 7,000 (.4) 4,0 (.) 2,0 (.),0 (.) 27,040 (4.04) (.) (4.2) (.57) (5.0) (.) (.) (7.) (.4) (7.2) 77,200 (22.) 4,00 (.) 54,0 (5.) 4,0 (4.0) 44,500 (.0) 4,200 (2.5) 4,00 (.20) 4,00 (2.),00 (.),00 (.),000 (.) 0,0 (.2) 27,500 (.05) 2,20 (7.0) 4,00 (.) 5,000 (7.2) 5,0 (5.) 47,200 (.2) 4,000 (2.0) 4,400 (.07) 2,25 45,00 (.44) 44,400 (.00) 4,00 (2.24),500 (.2) 4,400 (.07) 2,500 (.4) 2,400 (.47) (7.74),0 (20.24) 5,0 (.2),000 (7.7),700 (.) 4,00 (4.44) 42,000 (2.0),75 (.54) 44,500 (.0) 4,00 (2.) 42,200 (2.),500 (.57) 5,00 (.4),0 (.) 27,750 (.) 2,00 (24.) 75,00 (22.05) 7,00 (.),000 (7.57) 5,00 (5.7) 4,200 (2.5) 40,425 (.4) 45,0 (.5) 44,0 (2.2) 4,400 (2.2) 7,700 (.04),000 (.) 27,500 (.05) 24,525 (7.) Unit Charge Rates (R-4A) UNIT Std. Unit - Lbs. WRV2/WLV2 2 W5RV2/W5LV2 24 WRV2/WLV2 Form No. S42-4 Supersedes S42- Page of

7 Dimensions of Basic Unit for Architectural and Installation Requirements - Inches (mm) MODEL WRV2 WLV2 W5RV2 W5LV2 WRV2 WLV2 WIDTH (W).200 (70) () () DEPTH (D) 7.25 (45) (570) (570) HEIGHT (H) 70.5 (72) 4.75 (25) 4.75 (24) Dimensional drawings are not to scale. SUPPLY RETURN A B C B E F G I J K L M N O P Q R S S2 T (200) (70) (5) (25) (75) (40) (25) (75) (40) (70) () (27) (54) (4) (70) (70) (74) () (75) (5) (44) (04) (72) (20) (4) () (24) (75) (5).5 4. (44) (5) (72) (74).4 () (5) (7) 2.75 (70).7 ().7 () () (57).4 (22) () (7) (254) () () (254) () (05) (05).44 (7).44 (7) (40) (40) (40) (5) 5.00 (27). (4). (4) W*RV RIGHT UNIT 5.75 F W Built In Rain Hood 4 Pitch Heater Access Panel Electric Heat C. Breaker/ Disconnect Access Panel (Lockable) Filter Access Panel Vent Option Door Ventilation Air D See Note 2. A I C H Side Wall Mounting Brackets (Built In) Top Rain Flashing Shipping Location Optional Entrances E O Supply Air Opening B Return Air Opening R S S S G Condenser Air Outlet Low Entrance High Entrance Cond. Air Inlet J K L M P S2 S2 T Front View Side View Drain N Q Back View Bottom Installation Bracket MIS-07 Note : Desert Duty control panel door is shown and is standard. For optional flush Moderate Duty Control Panel Cover, order Control Cover option M. See Nomenclature on Page. W*LV LEFT UNIT R S S S E Built In O Rain Hood.44 D 4 Pitch W Electric 2. Heat Side Wall Supply Air Opening Heater Mounting A Access Brackets Panel (Built In) C. Breaker/ Disconnect Return Air Opening Top Rain Flashing Shipping Location Optional Entrances I C See Note Access Panel (Lockable) Filter Access Panel Ventilation Air Vent Option Door 5.75 F S2 S2 P M L H K J Cond. Air Inlet Low Entrance High Entrance Condenser Air Outlet G T Drain Bottom Installation Bracket Back View.0 2. Side View Front View MIS-077 Clearances Required for Service Access and Adequate Condenser Airflow MODELS LEFT SIDE RIGHT SIDE WRV2 5" 20" WLV2 20" 5" W5RV2, WRV2 20" 20" W5LV2, WLV2 20" 20" NOTE: For side by side installation of two (2) W*RV models there must be 20" between units. This can be reduced to 5" by using a W*LV model (left side compressor and controls) for the left unit and W*R (right side compressor and controls) for right unit. Minimum Clearances Required to Combustible Materials MODELS SUPPLY AIR DUCT FIRST THREE FEET CABINET WR/LV2 /4" 0" W5R/LV2 WR/LV2 /4" 0" Refer to the Installation Manual for more detailed information. Form No. S42-4 Supersedes S42- Page 7 of

8 Environmental Control Unit (ECU) Wall-Mount Nomenclature W R V 2 R S MODEL SERIES Wall-Mount COMPRESSOR & CONTROLS LOCATION R - Right Side L - Left Side SYSTEM DESIGN Variable (Digital Compressor) ECU REVISIONS SPECIAL FEATURES Electric Rated ELECTRICAL RATING R - 20/20-- & -50- S - 20/20-- & -50- T & COLOR OPTIONS - Beige (Standard) - White 4 - Buckeye Gray 5 - Desert Brown - Dark Bronze A - Aluminum OTHER OPTIONS - None S - Hard Start Kit -Phase Only COIL OPTIONS - Standard Copper Tube/Aluminum Fin - Phenolic Coated Indoor Coil 2 - Phenolic Coated Outdoor Coil - Phenolic Coated Indoor & Outdoor Coil NOMINAL TONS - Ton (,000 on Hz; 2,000 on 50Hz) 5-5 Ton (54,000 on Hz; 4,000 on 50Hz) - Ton (7,000 on Hz;,000 on 50Hz) VENTILATION OPTIONS - Barometric Fresh Air Damper (Std.) B - Blank-off Plate FILTER OPTIONS - One Inch Throwaway (Standard) W - One Inch Washable P - Two Inch Pleated (MERV ) CONTROL COVER DOOR - Desert Duty Door (Standard) M - Moderate Duty Door Vent option does not have exhaust capability. May require separate field supplied barometric relief in building. Blank-Off Plate recommended whenever maximum requirements against outside air intrusion are needed. Aftermarket corrosion resistance coating is necessary if unit is installed in a corrosive environment or coastal area where the unit will be exposed to salt water. Moderate Duty Door not recommended for harsh environments where wind and/or very fine dust are prevalent. All units equipped with flush Desert Duty Door can be field retrofitted with the Moderate Duty Door. Order DDDA-color for WR, DDDL-color for WL, DDD5A-color for W5R or WGR and DDD5L-color for W5L or WL. The following parts are unique to this product design and may not be found locally. Therefore, it is recommended that they be considered as "spares" for any mission critical installation so they would be immediately available should service ever be required. Refer to complete parts lists for more detail. Mission Critical Components Description Unit Bard Part No. WR/LV2-R WR/LV2-S WR/LV2-T W5R/LV2-R W5R/LV2-S W5R/LV2-T WR/LV2-S WR/LV2-T 000- Compressor ZPD4K5E-PFV Compressor ZPD4K5E-TF Compressor ZPD4K5E-TFD Compressor ZPD54K5E-PFV Compressor ZPD54K5E-TF Compressor ZPD54K5E-TFD Compressor ZPD72KCE-TF Compressor ZPD72KCE-TFD-0 S V Condenser Motor S V Condenser Motor S V Blower Motor S V Blower Motor S V Blower Motor S V Blower Motor S V Condenser Motor S V Condenser Motor -24 Cooling TV -25 Cooling TV -2 Cooling TV 0-04 Solenoid Valve High Pressure Switch 50# CO Flare Red Leads 04-0 Low Pressure Switch 2# CO 45# CI Flare Blue Leads 40-0 Discharge Line Thermostat 40-2 Pressure Transducer PSI 5 VDC Transformer 20/20V-24V 5VA Transformer 40V-24V 5VA Compressor Contactor 2-Pole 40A Compressor Contactor -Pole 0A 20-0 Compressor Control Module 20-2 Phase Monitor VDC Supply 20-4 Solid State Relay 0-04 Outdoor Air Sensor 40-0 Thermostat Controller SK Hard Start Kit j Optional Field Installed Factory standard PTCR motor starting device must be removed if optional SK hard start kit is field installed. 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. S42 April 20 Supersedes: S42- Form No. S42-4 Supersedes S42- Page of