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Summary of Contents for Bard SH612
- Page 1 INSTALLATION INSTRUCTIONS WALL MOUNTED PACKAGE HEAT PUMPS Model SH612 Bard Manufacturing Company, Inc. Manual : 2100-481 Supersedes: Bryan, Ohio 43506 File: Volume III Tab 17 Since 1914...Moving ahead just as planned. Date: 12-19-07 Manual 2100-481 Page 1 of 23...
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Page 2: Table Of Contents
CONTENTS Start Up Getting Other Information and Publications For More Information ..........3 Important Installer Note ........17 Crankcase Heaters ..........17 Wall Mount General High Pressure Switch ......... 17 Heat Pump Wall Mount Model Nomenclature ..4 Three Phase Scroll Compressor Start Up ... 17 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 COLOR OPTIONS 3 - Phenolic Coated Evaporator... -
Page 5: Figure 1 Unit Dimensions
Manual 2100-481 Page 5 of 23... -
Page 6: Shipping Damage
TABLE 2 ELECTRICAL SPECIFICATIONS & - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -... -
Page 7: Filters
Any grille that meets with 5/8 inch louver criteria may factory and is installed in place of the fresh air damper be used. It is recommended that Bard Return Air Grille shipped with each unit. Kit RG2 through RG5 or RFG2 through RFG5 be installed when no return duct is used. -
Page 8: 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 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. -
Page 9: Figure 3 Mounting Instructions
Manual 2100-481 Page 9 of 23... -
Page 10: Figure 4 Electric Heat Clearance
FIGURE 4 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 11: Figure 5 Wall Mounting Instructions
FIGURE 5 WALL MOUNTING INSTRUCTIONS SEE FIGURE 4 – MOUNTING INSTRUCTIONS FIGURE 6 WALL MOUNTING INSTRUCTIONS SEE UNIT DIMENSIONS, FIGURE 1, FOR ACTUAL DIMENSIONS Manual 2100-481 Page 11 of 23... -
Page 12: Figure 7 Common Wall Mounting Installations
FIGURE 7 COMMON WALL MOUNTING INSTALLATIONS Manual 2100-481 Page 12 of 23... -
Page 13: Wiring - Main Power
WIRING – MAIN POWER FIGURE 8 UNIT 24V TERMINAL BOARD Refer to the unit rating plate for wire sizing information and maximum fuse or “HACR” type circuit breaker size. Each outdoor unit is marked with a “Minimum Circuit Ampacity”. This means that the field wiring used must be sized to carry that amount of current. -
Page 14: Optional Outdoor Thermostat Applications
FIGURE 9 COMPRESSOR CUTOFF THERMOSTAT WIRING 4 – 10KW 1 PH – 6 & 9KW 3 PH FIGURE 10 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 15: Optional Compressor Cutoff Thermostat
OPTIONAL COMPRESSOR CUTOFF ELECTRIC HEAT HOLD-OFF THERMOSTAT (See Figures 9 and 10) (See Figures 11 and 12) Heat pump compressor operation at outdoor temperatures In other applications, it is desirable to disable the below 0°F are neither desirable nor advantageous in term operation of the electric heat until outdoor temperatures of efficiency. -
Page 16: Low Voltage Connections
LOW VOLTAGE CONNECTIONS These units use a grounded 24 volt AC low voltage circuit. The “R” terminal is the hot terminal and the “C” TABLE 4 terminal is grounded. WALL THERMOSTAT “G” terminal is the fan input. “Y” terminal is the compressor input. r t c “B”... -
Page 17: Figure 13 Start Up Procedure Decal
Apply power by closing the system The label in Figure 13 is affixed to all SH612-B and -C disconnect switch. This energizes the units detailing start up procedure. This is very compressor heater which evaporates important. -
Page 18: Phase Monitor
SEQUENCE OF OPERATION PHASE MONITOR All units with three phase compressors are equipped COOLING – Circuit R-Y makes at thermostat pulling in compressor contactor, starting the compressor and with a 3 phase line monitor to prevent compressor damage due to phase reversal. outdoor motor. -
Page 19: Figure 14 Defrost Control Board
There is a cycle speed up jumper on the control. This DEFROST CYCLE can be used to reduce the time between defrost cycle The defrost cycle is controlled by temperature and time operation without waiting for time to elapse. on the solid state heat pump control. See Figure 14. Use a small screwdriver or other metallic object, or When the outdoor temperature is in the lower 40°F another 1/4 inch QC, to short between the SPEEDUP... -
Page 20: Troubleshooting
TROUBLESHOOTING 3. Turn thermostat blower to “auto” position. Indoor SOLID STATE HEAT PUMP CONTROL blower should stop. NOTE: Many models have a TROUBLESHOOTING PROCEDURE 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 21: 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 22: Figure 15 Fan Blade Setting
Subtract .08 static for 2" filter bottom. Nine (9) screws. 4. Unwire condenser fan motor. NOTE: SH612 is shipped with the indoor 5. Slide complete motor, fan blade, and shroud blower on low speed. Move to high assembly out the left side of the unit. -
Page 23: 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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