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Summary of Contents for Bard WH612
- Page 1 INSTALLATION INSTRUCTIONS WALL MOUNTED PACKAGE HEAT PUMPS Model WH612 Bard Manufacturing Company, Inc. Manual : 2100-480 Supersedes: Bryan, Ohio 43506 File: Volume III Tab 17 Since 1914...Moving ahead just as planned. Date: 12-19-07 Manual 2100-480 Page 1 of 24...
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Page 2: Table Of Contents
CONTENTS Start Up Getting Other Information and Publications For More Information ..........3 Important Installer Note ........18 Crankcase Heaters ..........18 Wall Mount General High Pressure Switch ......... 18 Heat Pump Wall Mount Model Nomenclature ..4 Two Speed Outdoor Fan motors ......18 Shipping Damage .......... -
Page 3: Getting Other Information And Publications
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. -
Page 4: Wall Mount General
WALL MOUNT GENERAL INFORMATION HEAT PUMP WALL MOUNT MODEL NOMENCLATURE – CONTROL MODEL NUMBER REVISIONS MODULES COIL OPTIONS X - Standard VOLTS & PHASE CAPACITY 1 - Phenolic Coated Evaporator A - 230/208/60/1 61 - 5 ton 2 - Phenolic Coated Condenser B - 230/208/60/3 3 - Phenolic Coated Evaporator C - 460/60/3... -
Page 5: Figure 1 Unit Dimensions
Manual 2100-480 Page 5 of 24... -
Page 6: Shipping Damage
TABLE 2 ELECTRICAL SPECIFICATIONS & - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -... -
Page 7: Filters
Any grille that meets with 5/8 inch louver criteria may maximum energy efficiency. be used. It is recommended that Bard Return Air Grille Kit RG2 through RG5 or RFG2 through RFG5 be The blank-off plate is available upon request from the installed when no return duct is used. -
Page 8: Condensate Drain - Evaporator
CONDENSATE DRAIN – EVAPORATOR CONDENSATE DRAIN – CONDENSER A plastic drain hose extends from the drain pan at the A hole is provided in the unit base to accept a Drain top of the unit down to the unit base. There are Connection Kit 8620-160. -
Page 9: Installation Instructions
INSTALLATION INSTRUCTIONS WALL MOUNTING INFORMATION WARNING 1. Two holes for the supply and return air openings must be cut through the wall as shown in Figure 4. 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. -
Page 10: Figure 4 Mounting Instructions
Manual 2100-480 Page 10 of 24... -
Page 11: Figure 5 Electric Heat Clearance
FIGURE 5 ELECTRIC HEAT CLEARANCE 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. -
Page 12: Figure 6 Wall Mounting Instructions
FIGURE 6 WALL MOUNTING INSTRUCTIONS SEE FIGURE 4 – MOUNTING INSTRUCTIONS FIGURE 7 WALL MOUNTING INSTRUCTIONS SEE UNIT DIMENSIONS, FIGURE 1, FOR ACTUAL DIMENSIONS Manual 2100-480 Page 12 of 24... -
Page 13: Figure 8 Common Wall Mounting Installations
FIGURE 8 COMMON WALL MOUNTING INSTALLATIONS Manual 2100-480 Page 13 of 24... -
Page 14: Wiring - Main Power
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 primary and maximum fuse or “HACR” type circuit breaker voltage transformers. All equipment leaves the factory size. -
Page 15: Optional Outdoor Thermostats Applications
FIGURE 10 COMPRESSOR CUTOFF THERMOSTAT WIRING 4 – 10KW 1 PH – 6 & 9KW 3 PH FIGURE 11 COMPRESSOR CUTOFF THERMOSTAT WIRING 15 – 20KW 1 PH AND 3 PH OPTIONAL OUTDOOR THERMOSTAT Temperature and Humidity Controller #8403-060, along APPLICATIONS with the Outdoor Sensor option Part #8403-061, can be used to:... -
Page 16: Optional Compressor Cutoff Thermostat
OPTIONAL COMPRESSOR CUTOFF ELECTRIC HEAT HOLD-OFF THERMOSTAT (See Figures 10 and 11) (See Figures 12 and 13) Heat pump compressor operation at outdoor In other applications, it is desirable to disable the temperatures below 0°F are neither desirable not operation of the electric heat until outdoor temperatures advantageous in term of efficiency. -
Page 17: Table 4 Wall Thermostat
TABLE 4 WALL THERMOSTAT ; l o ; l o Manual 2100-480 Page 17 of 24... -
Page 18: Figure 14 Start Up Procedure Decal
Apply power by closing the system the compressor contactor. disconnect switch. This energizes the The label in Figure 14 is affixed to all WH612-B and -C compressor heater which evaporates units detailing start up procedure. This is very the liquid refrigerant in the crankcase. -
Page 19: Phase Monitor
PHASE MONITOR The second option has no “Auto” changeover position, but instead energizes the reversing valve solenoid All units with three phase compressors are equipped constantly whenever the system switch on subbase is with a 3 phase line monitor to prevent compressor placed in “Heat”... -
Page 20: Figure 15 Defrost Control Board
Use a small screwdriver or other metallic object, or By placing a jumper across the SEN JMP terminals (a another 1/4 inch QC, to short between the SPEEDUP 1/4 inch QC terminal works best) the defrost sensor terminals to accelerate the HPC timer and initiate mounted on the outdoor coil is shunted out and will defrost. -
Page 21: Troubleshooting
TROUBLESHOOTING SOLID STATE HEAT PUMP CONTROL 3. Turn thermostat blower to “auto” position. Indoor TROUBLESHOOTING PROCEDURE blower should stop. NOTE: Many models have a 1-minute blower time delay on “off” command; 1. NOTE: A thorough understanding of the defrost wait for this to time-out. cycle sequence is essential. -
Page 22: Checking Temperature Sensor Outside Unit Circuit
3. Check resistance reading to chart of resistance use CHECKING TEMPERATURE SENSOR OUTSIDE UNIT CIRCUIT sensor ambient temperature. (Tolerance of part is ± 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. -
Page 23: Figure 16 Fan Blade Setting
Subtract .08 static for 2" filter bottom. Nine (9) screws. 4. Unwire condenser fan motor. NOTE: WH612 is shipped with the indoor blower on low speed. Move to high 5. Slide complete motor, fan blade, and shroud speed for high static applications. -
Page 24: Pressure Tables
TABLE 11 PRESSURE TABLE COOLING Air Temperature Entering Outdoor Coil °F Low side pressure ± 2 PSIG High side pressure ± 5 PSIG Tables are based upon rated CFM (airflow) across the evaporator coil. If there is any doubt as to correct operating charge being in the system, the charge should be removed, system evacuated and recharged to serial plate instruction.
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