Bard SH612D Installation Instructions Manual

Wall mounted package
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INSTALLATION INSTRUCTIONS
WALL MOUNTED
PACKAGE HEAT PUMPS
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
Since 1914...Moving ahead just as planned.
Model
SH612D
Manual :
2100-482
Supersedes:
NEW
File:
Volume III Tab 17
Date:
12-19-07
Manual
Page
2100-482
1 of 25

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Summary of Contents for Bard SH612D

  • Page 1 INSTALLATION INSTRUCTIONS WALL MOUNTED PACKAGE HEAT PUMPS Model SH612D Bard Manufacturing Company, Inc. Manual : 2100-482 Supersedes: Bryan, Ohio 43506 File: Volume III Tab 17 Since 1914...Moving ahead just as planned. Date: 12-19-07 Manual 2100-482 Page 1 of 25...
  • 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 Three Phase Scroll Compressor Start Up ... 18 Shipping Damage ..........
  • Page 3: Getting Other Information And Publications

    Getting Other Information and Publications FOR MORE INFORMATION, CONTACT These publications can help you install the air THESE PUBLISHERS: conditioner or heat pump. You can usually find these at 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 MODULES MODEL NUMBER REVISIONS 00 – 0 KW COIL OPTIONS 09 – 9 KW CAPACITY X - Standard 10 – 10 KW 61 - 5 Ton 1 - Phenolic Coated Evaporator VOLTS &...
  • Page 5: Figure 1 Unit Dimensions

    Manual 2100-482 Page 5 of 25...
  • Page 6: Shipping Damage

    TABLE 2 ELECTRICAL SPECIFICATIONS & - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 7: Filters

    Any grille that meets with 5/8 inch louver criteria may be used. It is recommended that Bard Return Air Grille Kit RG2 through RG5 or RFG2 through RFG5 be installed when no return duct is used. (RFG filter is not included;...
  • 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. Failure to provide the 1/4 inch clearance 2. On wood frame walls, the wall construction must be between the supply duct and a combustible strong and rigid enough to carry the weight of the surface for the first 3 feet of duct can result in...
  • Page 9: Figure 3 Mounting Instructions

    Manual 2100-482 Page 9 of 25...
  • 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 2100-482 Page 11 of 25...
  • Page 12: Figure 7 Common Wall Mounting Installations

    FIGURE 7 COMMON WALL MOUNTING INSTALLATIONS Manual 2100-482 Page 12 of 25...
  • Page 13: 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 14: Figure 8 Wiring With Cs2000A2 Monitor

    FIGURE 8 SHXXXDX – HOT GAS REHEAT DURING DEHUMIDIFICATION WITH CS2000A2 ENERGY MONITOR FULL TIME DEHUMIDIFICATION Manual 2100-482 Page 14 of 25...
  • Page 15: Figure 9A Wiring W/Built-In Humidistat

    FIGURE 9A SHXXXDX – HOT GAS REHEAT DURING DEHUMIDIFICATION WITH CS2000A2 ENERGY MONITOR AND 8406-060 THERMOSTAT WITH BUILT-IN HUMIDISTAT FULL TIME DEHUMIDIFICATION BARD CS2000A2 FIGURE 9B SHXXXDX – HOT GAS REHEAT DURING DEHUMIDIFICATION WITH PROGRAMMABLE THERMOSTAT FULL TIME DEHUMIDIFICATION Manual...
  • Page 16: Compressor Cutoff Thermostat And Outdoor Thermostats

    FIGURE 10 10KW 1 PH – 6 & 9KW 3 PH COMPRESSOR CUT OFF THERMOSTAT NOTE: The additional LAB (low ambient bypass) relay AND OUTDOOR THERMOSTATS is required to prevent heater operation during low temperature cooling operation. Heat pump compressor operation at outdoor temperatures below 0°F are neither desirable nor Temperature and Humidity Controller #8403-060, along advantageous in terms of efficiency.
  • Page 17: Low Voltage Connections

    NOTE: For total and proper control using DDC, a LOW VOLTAGE CONNECTIONS total of 7 controlled outputs are required (6 if These units use a grounded 24 volt AC low voltage no ventilation system is installed). For proper circuit. system operation under Emergency Heat conditions where the compressor needs to be The “R”...
  • Page 18: Figure 11 Start Up Procedure Decal

    START UP FIGURE 11 IMPORTANT INSTALLER NOTE START UP LABEL For improved start up performance wash the indoor coil with a dish washing detergent. IMPORTANT CRANKCASE HEATERS These procedures must be followed at initial start up and at any time power has been SH612-B and -C are provided with compressor removed for 12 hours or longer.
  • Page 19: Phase Monitor

    HEATING SEQUENCE – On a call for heating, the PHASE MONITOR compressor and reversing valve of the unit are energized All units with three phase compressors are equipped to provide heat pump heating. If the room temperature with a 3 phase line monitor to prevent compressor falls below the 2nd stage heating set point backup damage due to phase reversal.
  • Page 20: Figure 12 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 12. 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 21: Troubleshooting

    TROUBLESHOOTING 3. Turn thermostat blower to “auto” position. Indoor SOLID STATE HEAT PUMP CONTROL 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 sensor ambient temperature. (Tolerance of part is OUTSIDE UNIT CIRCUIT ± 10%) 1. Disconnect temperature sensor from board and from 4. If sensor resistance reads very low, then sensor is outdoor coil.
  • Page 23: Figure 13 Fan Blade Setting

    Subtract .08 static for 2" filter bottom. Nine (9) screws. 4. Unwire condenser fan motor. NOTE: SH612D 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 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.
  • Page 25: Cooling Mode

    FIGURE 14 BARD HEAT PUMP COOLING MODE CIRCUIT DIAGRAM FIGURE 15 BARD HEAT PUMP DEHUMIDIFICATION MODE CIRCUIT DIAGRAM Manual 2100-482 Page 25 of 25...

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