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INSTALLATION INSTRUCTIONS
WALL MOUNTED
PACKAGE HEAT PUMPS
MODELS
W18H1
W24H1 W24H1D
W30H1 W30H1D
W36H1 W36H1D
W42H1 W42H1D
W48H1 W48H1D
W60H1 W60H1D
Bard Manufacturing Company, Inc. Manual: 2100-511F
Supersedes: 2100-511E
Bryan, Ohio 43506
File: Volume III Tab 17
Since 1914...Moving ahead just as planned.
Date: 02-17-12
Manual 2100-511F
Page 1 of 27
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Contents Start Up Getting Other Information and Publications 3 General .............................................................. 15 Topping Off System Charge................................... 15 Wall Mount General Information Safety Practices..................................................... 15 Wall Mount Model Nomenclature ............................ 4 Important Installer Note ......................................... 16 Shipping Damage ................................................
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GETTING OTHER INFORMATION AND PUBLICATIONS These publications can help you install the air FOR MORE INFORMATION, CONTACT conditioner or heat pump. You can usually find these at THESE 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 W 42 H 1– A 10 X X X X X A CONTROL MODULES REVISIONS MODEL NUMBER (See Spec. Sheet S3398) KW 1 CAPACITY 18 - 1½ Ton VOLTS & PHASE COIL OPTIONS 24 - 2 Ton H - Heat Pump A - 230/208/60/1 X - Standard COLOR OPTIONS 30 - 2½ Ton B - 230/208/60/3 X - Beige (Standard) 1 - Phenolic Coated Evaporator 36 - 3 Ton C - 460/60/3 2 - Phenolic Coated Condenser 1 - White 42 - 3½ Ton 4 - Buckeye Gray 3 - Phenolic Coated Evaporator 48 - 4 Ton a
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DUCT WORK FILTERS All duct work, supply and return, must be properly sized A 1-inch throwaway filter is standard with each unit. for the design airflow requirement of the equipment. Air The filter slides into position making it easy to service. Conditioning Contractors of America (ACCA) is an This filter can be serviced from the outside by removing excellent guide to proper sizing. All duct work or portions the filter access panel. A 1-inch washable filter and 2- thereof not in the conditione
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INSTALLATION INSTRUCTIONS WALL MOUNTING INFORMATION 1. Two holes for the supply and return air openings must be cut through the wall as shown in Figure 3. WARNING 2. On wood frame walls, the wall construction must be strong and rigid enough to carry the weight of the Failure to provide the 1/4 inch clearance unit without transmitting any unit vibration. between the supply duct and a combustible 3. Concrete block walls must be thoroughly inspected surface for the first 3 feet of duct can
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FIGURE 2 DimensionsofBasicUnitforArchitecturalandInstallationRequirements(Nominal) SN UPPLY RETUR WIDTH DEPTHHEIGHT MODEL (W) (D) (H) AB C B E F G I J K L M N O P Q R ST W18H1 35 3.30013 7.1278 0.5678 .818 9.818 1.810 9.830 5.015 8.526 5.725 0.526 6.725 8.020 9.223 7.023 .636 4.125 2.010 0.550 .010 2.0 5.0 W24H1 W30H1 35 8.20013 7.1278 0.5678 .828 7.818 3.820 7.840 0.015 8.523 5.715 7.925 6.725 8.720 9.223 7.023 .635 9.124 2.790 .150 .010 2.0 5.0 W36H1 W42H1 42 2.07525 2.4388 4.8798 .828 9.818
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Manual 2100-511F Page 8 of 27 FIGURE 3A W18H1, W24H1 MOUNTING INSTRUCTIONS
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Manual 2100-511F Page 9 of 27 FIGURE 3B W30H1, W36H1 MOUNTING INSTRUCTIONS
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Manual 2100-511F Page 10 of 27 FIGURE 3C W42H1, W48H1, W60H1 MOUNTING INSTRUCTIONS
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FIGURE 4 ELECTRIC HEAT CLEARANCE W30H1, W36H1, W42H1, W48H1, W60H1 SIDE SECTION VIEW OF SUPPLY AIR DUCT FOR WALL MOUNTED UNIT SHOWING 1/4 INCH CLEARANCE TO COMBUSTIBLE SURFACES. 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 combust
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FIGURE 5 WALL MOUNTING INSTRUCTIONS SEE FIGURE 3 – MOUNTING INSTRUCTIONS FIGURE 6 WALL MOUNTING INSTRUCTIONS SEE UNIT DIMENSIONS, FIGURE 2, FOR ACTUAL DIMENSIONS IF REQUIRED IF REQUIRED Manual 2100-511F Page 12 of 27
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FIGURE 7 COMMON WALL MOUNTING INSTALLATIONS Manual 2100-511F Page 13 of 27
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WIRING – MAIN POWER WIRING – LOW VOLTAGE WIRING 230/208V, 1 phase and 3 phase equipment dual primary Refer to the unit rating plate for wire sizing information and maximum fuse or “HACR” type circuit breaker voltage transformers. All equipment leaves the factory wired on 240V tap. For 208V operation, reconnect from size. Each outdoor unit is marked with a “Minimum Circuit Ampacity”. This means that the field wiring 240V to 208V tap. The acceptable operating voltage range for the 240 and
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START UP REMEMBER: When adding R-410A refrigerant, it THESE UNITS REQUIRE R-410A must come out of the charging cylinder/tank as a liquid REFRIGERANT AND POLYOL to avoid any fractionation, and to insure optimal system performance. Refer to instructions for the cylinder that ESTER OIL. is being utilized for proper method of liquid extraction. GENERAL: 1. Use separate service equipment to avoid cross contamination of oil and refrigerants. 2. Use recovery equipment rated for R-410A WARNING
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START UP (Continued) IMPORTANT INSTALLER NOTE PHASE MONITOR For improved start up performance wash the indoor coil All units with three phase scroll compressors are with a dish washing detergent. equipped with a 3 phase line monitor to prevent compressor damage due to phase reversal. HIGH & LOW PRESSURE SWITCH The phase monitor in this unit is equipped with two LEDs. If the Y signal is present at the phase monitor All W**H wall mounted air conditioner series models are supplied with a remote re
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wire from the 60-minute terminal and reconnect to the SEQUENCE OF OPERATION COOLING – Circuit R-Y makes at thermostat pulling in desired terminal. Refer to Figure 8. compressor contactor, starting the compressor and outdoor There is a cycle speed up jumper on the control. This can be motor. The G (indoor motor) circuit is automatically completed used for testing purposes to reduce the time between defrost on any call for cooling operation or can be energized by manual cycle operation without
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FIGURE 8 DEFROST CONTROL BOARD SW SW 1 2 TIME (SEC) OFF OFF 30 ON OFF 60 LOW PRESSURE BYPASS TIMER SWITCH OFF ON 120* *(FACTORY SETTING 120 SECONDS) ON ON 180 OFF ON ACCUMULATED DEFROST TIME TIMER (FACTORY SETTING 60 MIN.) MIS-2668 A Manual 2100-511F Page 18 of 27
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TROUBLESHOOTING SOLID STATE HEAT PUMP CONTROL NOTE: If there was no power to 24 volt transformer, TROUBLESHOOTING PROCEDURE the compressor and outdoor fan motor will 1. NOTE: A thorough understanding of the defrost not start for 5 minutes. This is because of cycle sequence is essential. Review that section the compressor short cycle protection. earlier in this manual prior to troubleshooting the control. Turn on AC power supply to unit. LED BLINK CODES 2. Turn thermostat blower switch to “fa
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3. Check resistance reading to chart of resistance. Use CHECKING TEMPERATURE SENSOR sensor ambient temperature. (Tolerance of part is OUTSIDE UNIT CIRCUIT ± 10%.) 1. Disconnect temperature sensor from board and from outdoor coil. 4. If sensor resistance reads very low, then sensor is shorted and will not allow proper operation of the 2. Use an ohmmeter and measure the resistance of the heat pump control. sensor. Also use ohmmeter to check for short or open. 5. If sensor is out of tolerance, s
