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INSTALLATION INSTRUCTIONS
WALL MOUNTED
PACKAGE AIR CONDITIONERS
MODELS
WL423
WL484
WL602
Manual : 2100-400
Bard Manufacturing Company
Supersedes:
Bryan, Ohio 43506
File: Volume III Tab 16
Since 1914...Moving ahead just as planned.
Date: 01-31-02
© Copyright 2002
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CONTENTS Start Up Getting Other Information and Publications 1 Important Installer Note ......................................... 14 High Pressure Switch ............................................ 14 Wall Mount General Information Three Phase Scroll Compressor Start Up ............. 14 Heat Pump Wall Mount Model Nomenclature.......... 2 Phase Monitor ....................................................... 14 Shipping Damage .................................................... 5 Cond
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Getting Other Information and Publications These publications can help you install the air For more information, contact these conditioner or heat pump. You can usually find these at publishers: your local library or purchase them directly from the publisher. Be sure to consult current edition of each ACCA Air Conditioning Contractors of America standard. 1712 New Hampshire Ave. N.W. Washington, DC 20009 Telephone: (202) 483-9370 National Electrical Code ....................... ANSI/NFPA 70 Fax:
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WALL MOUNT GENERAL INFORMATION HEAT PUMP WALL MOUNT MODEL NOMENCLATURE MODEL NUMBER CONTROL WL 42 3 – A 10 X N X X X A MODULES (See Chart Below) CAPACITY COIL OPTIONS 42 - 3 1/2 Ton X - Standard 48 - 4 Ton REVISIONS 1 - Phenolic Coated Evaporator 60 - 5 Ton COLOR OPTIONS 2 - Phenolic Coated Condenser X - Beige (Standard) 3 - Phenolic Coated Evaporator 1 - White and Condenser KW 2 - Mesa Tan VOLTS & PHASE 4 - Buckeye Gray OUTLET OPTIONS VENTILATION OPTIONS A - 2
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Manual 2100-400 Page 3 FIGURE 1 UNIT DIMENSIONS Heig- Sn upply Retur Width Depth ht Model (W) (D) (H) A BCB EF G I J K L M N O P Q R S T WL42 WL4842 2.07525 2.4388 4.8798 .828 9.818 5.828 9.840 3.816 9.130 1.638 0.034 2.629 6.933 4.637 2.438 .348 2.820 3.814 0.010 .418 6.0 1.8 WL60 BACK VIEW LEFT SIDE VIEW FRONT VIEW MIS-1286
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TABLE 2 ELECTRICAL SPECIFICATIONS SINGLE CIRCUIT DUAL CIRCUIT 3 1 2 2 3 1 2 2 Maximum External Maximum Minimum Fuse Field No. External Field Circuit orCkt. PowerWire Ground Rated Field Minimum Fuse or Power Ground Ampacity Breaker Size Wire Size Volts & Power Circuit Circuit Wire Wire CKT CKT CKT CKT CKT CKT CKT CKT Phase Circuits Ampacity Breaker Size Size Model A B A B A B A B WL423-A00,A0Z 1 35 50 8 10 N/A N/A N/A N/A N/A N/A N/A N/A A05 1 35 50 8 10 N/A N/A N/A N/A N/A N/A N/A N/A 230/208-1
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DUCT WORK SHIPPING DAMAGE All duct work, supply and return, must be properly Upon receipt of equipment, the carton should be sized for the design air flow requirement of the checked for external signs of shipping damage. If equipment. Air Conditioning Contractors of America damage is found, the receiving party must contact the (ACCA) is an excellent guide to proper sizing. All duct last carrier immediately, preferably in writing, work or portions thereof not in the conditioned space requestin
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All capacity, efficiency and cost of operation FILTERS information as required for Department of Energy A one inch throwaway filter is supplied with each unit. “Energyguide” Fact Sheets is based upon the fresh air The filter slides into position making it easy to service. blank-off plate in place and is recommended for This filter can be serviced from the outside by removing maximum energy efficiency. the service door. A one inch washable filter and two inch pleated filter are also available as
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INSTALLATION INSTRUCTIONS WALL MOUNTING INFORMATION 1. Two holes for the supply and return air openings WARNING must be cut through the wall as shown in Figure 3. 2. On wood frame walls, the wall construction must be Failure to provide the 1/4 inch clearance strong and rigid enough to carry the weight of the between the supply duct and a combustible unit without transmitting any unit vibration. surface for the first 3 feet of duct can result in fire causing damage, injury or death. 3. Co
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Manual 2100-400 Page 8 FIGURE 3 MOUNTING INSTRUCTIONS MIS-947
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FIGURE 4 ELECTRIC HEAT CLEARANCE SIDE SECTION VIEW OF SUPPLY AIR DUCT FOR WALL MOUNTED UNIT SHOWING 1/4 INCH CLEAR- ANCE TO COMBUSTIBLE SURFACES. MIS-277 WARNING A minimum of 1/4 inch clearance must be maintained between the supply air duct and combustible materials. This is required for the first 3 feet of ducting. It is important to insure that the 1/4 inch minimum spacing is maintained at all points. Failure to do this could result in overheating the combustible material and may re
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FIGURE 5 WALL MOUNTING INSTRUCTIONS WALL STRUCTURE SEE FIGURE 3 – MOUNTING INSTRUCTIONS FACTORY SUPPLIED RAIN FLASHING. MOUNT ON UNIT BEFORE INSTALLATION SUPPLY AIR SUPPLY AIR SUPPLY AIR DUCT OPENING OPENING RETURN AIR RETURN AIR RETURN AIR OPENING OPENING OPENING BOTTOM MOUNTING BRACKET. MOUNT ON WALL BEFORE INSTALLING UNIT. MIS-948 FIGURE 6 WALL MOUNTING INSTRUCTIONS SEE UNIT DIMENSIONS, FIGURE 1, FOR ACTUAL DIMENSIONS ATTACH TO TOP PLATE OF WALL 1.000” CLEARANCE ALL AROU
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FIGURE 7 COMMON WALL MOUNTING INSTALLATIONS FREE AIR FLOW NO DUCT DUCTED SUPPLY RETURN AT UNIT FALSE WALL INSTALLATION CLOSET INSTALLATION MIS-1050 Manual 2100-400 Page 11
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WIRING – MAIN POWER WIRING – LOW VOLTAGE WIRING Refer to the unit rating plate for wire sizing information 230 / 208V, 1 phase and 3 phase equipment dual and maximum fuse or “HACR” type circuit breaker primary voltage transformers. All equipment leaves the size. Each outdoor unit is marked with a “Minimum factory wired on 240V tap. For 208V operation, Circuit Ampacity”. This means that the field wiring reconnect from 240V to 208V tap. The acceptable used must be sized to carry that amount
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FIGURE 8 UNIT 24V TERMINAL BOARD MIS-1373A Manual 2100-400 Page 13
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START UP IMPORTANT INSTALLER NOTE PHASE MONITOR All units with three phase scroll compressors are For improved start up performance wash the indoor coil equipped with a 3 phase line monitor to prevent with a dish washing detergent. compressor damage due to phase reversal. The phase monitor in this unit is equipped with two HIGH PRESSURE SWITCH LEDs. If the Y signal is present at the phase monitor The WL484 and WL602 models are supplied with a and phases are correct the green LED will light. rem
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COMPRESSOR CONTROL MODULE NOTE: Both high and low pressure switch controls are inherently automatic reset devices. The high The compressor control module is standard on the pressure switch and low pressure switch cut out WL484 and WL602 models covered by this manual and and cut in settings are fixed by specific air is optional on the WL423 model. The compressor conditioner or heat pump unit model. The control is an anti-short cycle/lockout timer with high lockout features, both soft and manua
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TROUBLESHOOTING 3. Remove screws holding fan shroud to condenser FAN BLADE SETTING DIMENSIONS and bottom. Nine (9) screws. Shown in Figure 10 is the correct fan blade setting 4. Unwire condenser fan motor. dimension for proper air delivery across the outdoor coil. 5. Slide complete motor, fan blade, and shroud assembly out the left side of the unit. Any service work requiring removal or adjustment in the fan and/or motor area will require that the 6. Service motor/fan as needed. dimensions belo
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TABLE 8 TABLE 9 MAXIMUM ESP OF OPERATION RECOMMENDED AIRFLOW ELECTRIC HEAT ONLY Rated Rated Recommended Model CFM* ESP * Airflow Range M3 odelW4 L42W2 L48 WL60 W0 L42310 40.0 3 1600 - 115 High Low High Low High Low KW Speed Speed Speed Speed Speed Speed W0 L48410 55.5 2 1750 - 128 -A05 .50 .50 .50 .50 .50 .50 W0 L60210 70.5 3 1950 - 137 -A10 .50 .50 .50 .50 .50 .50 -A15 .50 .50 .50 .50 .50 .50 * Rated CFM and ESP on high speed tap. -B00 .50 .50 .50 .50 .50 .50 -B09 .50 .50 .50 .50 .50 .50 -B1
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TABLE 11 OPTIONAL ACCESSORIES Part Nn umber Descriptio BOP-5 Blank OffPlate X X X X X X X X X BFAD-5 Barometric FreshAir Damper X X X X X X X X X MFAD-5 Motorized FreshAir Damper X X X X X X X X X CRV-5 CommercialVentilator withExhaust X X X X X X X X X EIFM-5 Economizer withExhaust X X X X X X X X X CMA-6 LowAmbientControl (LAC) X X XX XX CMA-10A LPC + HPC + TDR X XX CMA-13A LPC + HPC + TDR + Alarm Relay X X CMC-15 StartKit X CMA-16 LowPressue Control XXXXXX CC MA-18 LPC & LA XXXXX WMCB-05B Ci
