THE WALL-MOUNT TM SIX TON AIR CONDITIONER

Transcription

1 The Bard Wall-Mount Six Ton Air Conditioner is a self contained energy efficient 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 THE WALL-MOUNT TM SIX TON AIR CONDITIONER WA - Ton Refrigerant 22 Hz 4, to, Btuh Right Side Control Panel Aluminum Finned Copper Coils: Grooved copper tubing and enhanced louvered aluminum fin for maximum heat transfer and energy efficiency. Twin Blowers: Move air quietly. Models WA7-A, WA7-B and WA72-B feature multispeed blower motors providing airflow adjustment for high and low static operation. Motor overload protection is standard on all models. Air Conditioner Compressor: Copeland scroll compressor designed for increased efficiency, quieter operation and improved reliability for longer life. Equipped with crankcase heater. 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 B7-3. 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 or pull disconnect switch. Electric Heat Strips: Feature an automatic limit and thermal cut-off safety control. Heater packages are factory or field installed for all models. Features easy slide-in field assembly with various BTUH outputs. High Pressure Switch is Auto-Reset: Built-in lock-out circuit resets from the room thermostat. Provides commercial quality protection to the compressor. Low Pressure Switch is Auto-Reset: Built-in lock-out circuit and low pressure timed bypass circuit. Resets from room thermostat. Compressor Control Module: Built-in off-delay timer adjustable from 3 seconds to 5 minutes. 2-minute on-delay if power interrupt. 2- second bypass for low pressure control, and both soft and manual lockouts for high and low pressure controls. Alarm output for alarm relay. Low Ambient Control: Permits operation down to F outdoor ambient. Dry Contacts for Remote Alarm on High or Low Pressure Lock-out: Built-in Circuit Breakers: Standard on all KW versions of models WA7-A, WA7-B and WA72-B. Toggle disconnects are standard on all KW types of model WA7-C (4 volt-3ph). One Inch, Disposable Air Filters: Are standard equipment. Optional - inch washable filters available and filter racks permit the addition of 2" pleated filter. Factory or field installed. Condenser Fan and Motor Shroud Assembly: Slide out for easy access. Barometric Fresh Air Damper: Standard on all units. Allows up to 25% outside fresh air. Slope Top: Standard feature for water runoff. Top Rain Flashing: Standard feature on all models Full Length Mounting Brackets: Built into cabinet for improved appearance and easy installation. NOTE: Bottom mounting bracket included to assist in installation. 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 w/ Exhaust CRV - Spring Return CRVP - Power Return Optional - Economizer w/ Exhaust Optional - Energy Recovery Ventilator Complies with efficiency requirements of ASHRAE/IESNA Certified to ANSI/ARI Standard for SPVU (Single Package Vertical Units). Commercial Product - Not intended for Residential application. Form No. S Supersedes S Page of

2 Capacity and Efficiency Ratings Models Specifications Volts Operating Voltage Range Compressor Type Phase Cooling Cap. BTUH CFM / ESP ( Rated Wet Coil) EER 2 SEER 3 WA72-A 23/ SCROLL 4,, / WA7-B 23/ SCROLL 3 7,, / WA7-C SCROLL 3 7,, / WA72-B 23/ SCROLL 3,, / Capacity is certified in accordance with ANSI/ARI Standard and tested in accordance with ARI Standard 2/ EER = Energy Efficiency Ratio and is certified in accordance with ANSI/ARI Standard SEER = Seasonal Energy Efficiency Ratio and is tested in accordance with ARI Standard 2/ All ratings based on fresh air intake being % closed (no outside air introduction). Models Electrical Rating HZ RLA Compressor BCSC LRA HP / RPM / SPD Outdoor Fan Motor Indoor Blower Motor Filter Size Inches) Std Shipping 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 existing local codes. FLA DIA / CFM HP / RPM / SPD F LA. ( Weight WA72-A 23/2-29. / / 7 /3 / 5 / 2-Spd " / 2, /2 /,7 / 2-Spd x 3 x 52 WA7-B 23/ / / 5 /3 / 5 / 2-Spd " / 2, /2 /,7 / 2-Spd x 3 x 52 WA7-C /3 / 5 / -Spd. 3 24" / 2, /2 /,7 / 2-Spd. 9 2 x 3 x 52 WA72-B 23/ / 5 /2 /, / -Spd 3. 24" / 3,5 /2 /,7 / 2-Spd x 3 x 52 Electrical Specifications SINGLE CIRCUIT DUAL CIRCUIT Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors. 2 Based on C copper wire. All wiring must conform to the National Electrical Code (NEC) and all local codes. 3 These Minimum Circuit Ampacity values are to be used for sizing the field power conductors. Refer to the National Electric Code (latest revision), article 3 for power conductor sizing. Caution: When more than one field power conductor 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 3 conductors are in a raceway. Electric Heat Table----Refer to Electrical Specifications for Availability by Unit Model Nominal KW Models WA72-A, AZ A5 A A5 A2 WA7 or WA72: B, BZ B9 B5 B WA7-C, CZ C9 C5 Designed for adding Electric Heat to KW Units Circuit Breaker Standard on 23/2V Models Pull Disconnect Standard on 4V Models UL Listed CUL Listed -A Models -B Models -C Models Air Conditioner 23/2-23/ Models Heater Model # K W Heater Model # K W Heater Model # KW EHWA-A5 5 EHWA-B9 9 EHWA5A-C9 9 WA7 EHWA5-A EHWA5-B5 5 EHWA5A-C5 5 EHWA5-A5 5 EHWA5-B EHWA5-A2 2 WA72 Kw Rated Volts & Phase 23/2-23/ N/ A No. Field Power Circuits or 2 or 2 A t 24V () A t 2V () A t 4V (2) At 4V (2) -Ph 3-Ph Btuh EHWA-B9 EHWA5-B5 EHWA5-B 9 5 Kw -Ph 3-Ph Btuh , 3.. 2,799 N/A Kw 3-Ph Btuh Kw 3-Ph Btuh , , , , , , , , , , , , , , , ,95 () These electric heaters are available in 23/2V units only. (2) These electric heaters are available in 4V units only. 3 Minimum Circuit Ampacity Heater Packages Field Installed Maximum External Fuse or Circuit Breaker Field Power Wire Size Ground Wire Size Minimum Circuit Ampacity A B 2 52 Maximum External Fuse or Circuit Breaker A B 3 2 Field Power Wire Size A B 2 Ground Wire Size A Indoor Blower Performance CFM at 23 Volts WA7 WA72 E.S.P. HIGH SPEED LOW SPEED In H 2O DRY / WET COIL DRY / WET COIL. 2,2 / 2,, /,45. 2, /,9,525 /,3.2 2, /, /.3, /,7 /.4,7 /, /.5, /,4 / B Form No. S Supersedes S Page 2 of

3 Clearances Required for Service Access and Adequate Condenser Air Flow MODELS LEFT SIDE RIGHT SIDE W A7, WA72 2" 2" Minimum Clearances Required to Combustible Materials MODELS SUPPLY AIR DUCT FIRST THREE FEET CABINET W A7, WA72 /4" " Refer to the Installation Manual for more detailed information. Dimensions of Basic Unit for Architectural and Installation Requirements (Nominal) MODEL WA7 WA72 WIDTH (W) DEPTH (D) HEIGHT (H) SUPPLY RETURN A B C B E F G I J K L M N O P Q MIS-74 FRONT VIEW SIDE VIEW BACK VIEW Form No. S Supersedes S Page 3 of

4 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 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 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 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 opened 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 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. Two versions are available: the CRVS is power open - spring return on power loss; the CRVP is power open and power return. Complies with ANSI/ASHRAE Standard 2. Ventilation for Acceptable Indoor Air Quality. ECONOMIZER - EIFM 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 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 2.. The WERV allows from 2 to 45 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-*5C can be independently adjusted for intake and exhaust rates. Form No. S Supersedes S Page 4 of Manufactured under U.S. Patent Nos. 5,45,7; 5,3,744; 5,2,; 4,924,934; 4,,52; 4,25,93.

5 Commercial Room Ventilator Performance Data - CRVS-5 and CRVP-5 WA7, WA72 HIGH SPEED TOTAL AND VENTILATION AIRFLOW Airflow (cfm) A B C D E F Vent Position Total Air ESP Total Air.2 ESP Total Air.4 ESP Vent Air ESP Vent Air.2 ESP Vent Air.4 ESP Airflow (cfm) WA7, WA72 LOW SPEED TOTAL AND VENTILATION AIRFLOW A B C D E F Vent Position Total Air ESP Total Air.2 ESP Total Air.4 ESP Vent Air ESP Vent Air.2 ESP Vent Air.4 ESP Form No. S Supersedes S Page 5 of

6 Performance and Application Data- WERV-*5C Ambient O.D. DB/ WB F VLT VENTILATION RATE VLS VLL HRT 45 CFM HRS SUMMER COOLING PERFORMANCE (INDOOR DESIGN CONDITIONS DB/2 WB) HRL VLT VENTILATION RATE VLS VLL HRT 3 CFM HRS HRL VLT VENTILATION RATE VLS VLL HRT 3 CFM HRS HRL Ambient O.D. WERV-*5C WINTER HEATING PERFORMANCE (INDOOR DESIGN CONDITIONS 7 F DB) VENTILATION RATE 45 CFM 3 CFM 3 CFM DB/ F WVL WHR WVL WHR WVL WHR NOTE: Sensible performance only is shown for winter application. 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 Form No. S Supersedes S Page of

7 Cooling Application Data Outdoor Temperature F Model WA72-A WA7-B,C WA72 D.B./W.B. 2 / 2 / 7 5/ 72 / 2 / 7 5/ 72 / 2 / 7 5/ 72 Cooling Capacity Below F, unit requires a factory or field installed low ambient control. 2 Return air temp. F. o F o F 5 o F 9 o F 95 o F o F 5 o F o F 5 o F 2 o F 25 o F,2 5, 7,7 49, 4,2 5,3 9,7 49,5 74,55 4,5,7 49,5 7,7 5,5, 49, 9,7 5,2 3, 47,9 9,3 4,9, 47,, 4, 72,5 47, 5, 47, 7, 49, 73,9 4,, 4,, 45,4 7,7 45, 77,7 45,2 3,9 4, 7,5 4,2,55 4,35 4,9 47, 72, 47,2 2, 47,4 5,4 43,5, 43,5 74,5 43,2, 45,3 9, 45,3 77,95 44,95 2, 4,3 7, 4,3 79, 4, 55,7 42, 4, 42,4 7, 4, 5,3 44, 7, 44,45 74,4 43,55 59,3 45,, 45,5,4 44, 53,2 4, 2, 4,5 7, 4,2 55,55 42, 4, 43, 7, 42,34 5,5 43,, 44, 7, 43,2 5,7 4, 59, 4, 4,5 39,2 52, 4, 2,4 42, 7,25 4,7 53, 42, 3,4 43,,3 4,7 4, 39, 57,4 4,9, 3,4 5,5 4,55 59,9 4,95 3, 39,3 5,2 4,,9 43, 4,7 4,3 45,5 39,5 54, 4, 57, 37,9 47,5 39,5 57,25 4,5, 37,5 4,5 4,5 5,3 42,2, 3,9 4, 39, 57,4 4, 59,5 37, Capacity Multiplier Factors 45, 3, 54,5 4,5 5,9 35, % of Rated Airflow - Rated + Total BTUH.9..2 Sensible BTUH Form No. S Supersedes S Page 7 of

8 Air Conditioning Wall-Mount Model Nomenclature WA 7 A X X X X X J MODEL NUMBER CAPACITY 7 - Ton 72 - Ton REVISIONS VOLTS & PHASE A - 23/2// B - 23/2//3 C - 4//3 KW - No KW Z - No KW w/circuit Breaker or Pull Disconnect 5-5KW 9-9KW - KW 5-5KW - KW 2-2KW COLOR OPTIONS X - Beige (Standard) - White 2 - Mesa Tan 4 - Buckeye Gray 5 - Desert Brown - Dark Bronze OUTLET OPTIONS X - Front (Standard) CONTROL MODULES (See chart below) COIL OPTIONS X - Standard - Phenolic Coated Evaporator 2 - Phenolic Coated Condenser 3 - Phenolic Coated Evaporator and Condenser VENTILATION OPTIONS See Table Below FILTER OPTIONS X - -Inch Disposable (Standard) W - -Inch Washable P - 2-Inch Pleated Note: For KW and circuit breakers (23/2 Volt) or toggle disconnects (4 Volt) applications, insert Z in the KW field of model number. WA7 & WA72 Ventilation Options MODELS WA7, WA72 D ESCRIPTION F actory Installed Code No. Field Installed Part No. Barometric Fresh Air Damper X BFAD-5 Blank-Off Plate B BOP-5 Motorized Fresh Air Damper M MFAD-5 Commercial Ventilator - Spring Return w/exhaust V CRVS-5 Commercial Ventilator - Power Return w/exhaust P CRVP-5 Economizer (Internal) - Fully Modulating E EIFM-5 C Economizer (Internal) - Fully Modulating 2 D N/ A Energy Recovery Ventilator - 23 Volt 4 R 3 WERV-A5B 3 Energy Recovery Ventilator - 4 Volt 4 R 3 WERV-C5B 3 Low ambient control is required with economizer for low temperature compressor operation. 2 For use only with "V" Control Module and TCS22 Controller. 3 The Energy Recovery Ventilator is available on the WA7 model series only. 4 Intake and exhaust can be independently adjusted. Air Conditioning Control Modules HPC LPC 2 CCM 3 LAC 4 ALR 5 SK ODT 7 DDC Factory Installed Code Field Installed Part J N/ A V 9 CMA-24 Field Installed Only CMC-5 Field Installed Only CMA-4 = Standard equipment for these specified models. HPC. High pressure control is auto reset. Always used with compressor control module (CCM), which is included. See note 3. 2 LPC. Low pressure control is auto reset. Always used with compressor control module (CCM), which is included. See note 3. 3 CCM. Compressor control module has adjustable 3-second to 5-minute delay-on-break timer. On initial power-up, or any time the power is interrupted, the delay-on-make will be 2 minutes, plus % of the delay-on-break setting. There is no delay-on-make during routine operation of the unit. The module also provides the lockout feature (with retry) for high and/or low-pressure controls, and a 2-minute timed bypass for low-pressure control. 4 LAC. Low ambient control permits cooling operation down to F. 5 ALR. The alarm relay has a set of normally open and normally closed dry contacts to provide the ability to signal a condition of shutdown on either high or low pressure controls. SK. Start kit can be used with all -A single phase models only. Is not used or available for -B or -C three phase models. 7 ODT. Outdoor thermostat is adjustable from to 5 F. It is suitable for use as a compressor cut-off thermostat. DDC. Incorporates 4 additional sensors: discharge air temperature, indoor blower airflow, compressor current, and dirty filter. These sensing devices function to input analog data such as temperature, as well as digital data such as air flow, compressor status or filter status. 9 "V" control module should be ordered in conjunction with direct digital controller (DDC) model TCS22. Refer to DDC specification sheet S32 for more information. Bard Manufacturing Company, Inc. Bryan, Ohio Due to our continuous product improvement policy, all specifications subject to change without notice. Form No. S3274 March, 27 Form No. S Supersedes S Page of Before purchasing this appliance, read important energy cost and efficiency information available from your retailer. Supersedes S3274-2