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INSTALLATION INSTRUCTIONS
PACKAGED HEAT PUMP
CONTROL CIRCUIT WIRING
J18H2-A
J24H2-A
J30H2-A
J36H2-A
J42H2-A
J48H2-A
J60H2-A
WALL MOUNTED
&
LOW VOLTAGE
Models:
J24H2-B
J30H2-B
J36H2-B
J42H2-B
J48H2-B
J60H2-B
J24H2-C
J30H2-C
J36H2-C
J42H2-C
J48H2-C
J60H2-C
Manual:
2100-606B
Supersedes: 2100-606A
Date:
11-18-16
Page
1 of 30
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Summary of Contents for Bard J18H2-A
- Page 1 INSTALLATION INSTRUCTIONS WALL MOUNTED PACKAGED HEAT PUMP & LOW VOLTAGE CONTROL CIRCUIT WIRING Models: J18H2-A J24H2-A J24H2-B J24H2-C J30H2-A J30H2-B J30H2-C J36H2-A J36H2-B J36H2-C J42H2-A J42H2-B J42H2-C J48H2-A J48H2-B J48H2-C J60H2-A J60H2-B J60H2-C Manual: 2100-606B Supersedes: 2100-606A Date: 11-18-16 Page...
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Page 2: Table Of Contents
CONTENTS Start Up ..............18 Getting Other Information and Publications ..3 General ............. 18 Topping Off System Charge ......... 18 Wall Mount General Information ......4 Safety Practices ..........18 Wall Mount Model Nomenclature ......4 Important Installer Note ........19 Shipping Damage .......... -
Page 3: Getting Other Information And Publications
GETTING OTHER INFORMATION AND PUBLICATIONS These publications can help when installing the heat For more information, contact these publishers: pump. They can usually be found at the local library or purchased directly from the publisher. Be sure to ACCA Air Conditioning Contractors of America consult current edition of each standard. -
Page 4: Wall Mount General Information
WALL MOUNT GENERAL INFORMATION HEAT PUMP WALL MOUNT MODEL NOMENCLATURE – CONTROL MODULES REVISIONS MODEL NUMBER See Spec. Sheet S3441 CAPACITY 18 - 1½ Ton VOLTS & PHASE COIL OPTIONS 24 - 2 Ton A - 230/208/60/1 X - Standard COLOR OPTIONS 30 - 2½... -
Page 5: Duct Work
DUCT WORK NOTE: If no return air duct is used, applicable installation codes may limit this cabinet to All duct work, supply and return, must be properly installation only in a single story structure. sized for the design airflow requirement of the equipment. -
Page 6: Installation
INSTALLATION WALL MOUNTING INFORMATION WARNING 1. Two holes for the supply and return air openings must be cut through the wall as shown in Figures 3A - 3C on pages 8-10. 2. On wood frame walls, the wall construction must Failure to provide the 1/4"... -
Page 7: Figure 2 Unit Dimensions
FIGURE 2 Dimensions of Basic Unit for Architectural and Installation Requirements (Nominal) SUPPLY RETURN WIDTH DEPTH HEIGHT MODEL J18H2 33.300 17.125 70.563 7.88 19.88 11.88 19.88 35.00 18.50 25.75 20.56 26.75 28.06 29.25 27.00 2.63 34.13 22.06 10.55 5.00 12.00 5.00 J24H2 J30H2 38.200... -
Page 8: Figure 3A Mounting Instructions - J18 & J24
Manual 2100-606B Page 8 of 30... -
Page 9: Figure 3B Mounting Instructions - J30 & J36
Manual 2100-606B Page 9 of 30... - Page 10 Manual 2100-606B Page 10 of 30...
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Page 11: Figure 3C Mounting Instructions - J42, J48, J60
FIGURE 4 Electric Heat Clearance J30H, J36H, J42H, J48H, J60H 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" clearance must be maintained between the supply air duct and combustible materials. This is required for the first 3' of ducting. -
Page 12: Figure 5 Wall Mounting Instructions
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 WOOD OR STEEL SIDING BRACKET. -
Page 13: Figure 7 Common Wall Mounting Installations
FIGURE 7 Common Wall Mounting Installations SUPPLY DUCT MAY BE LOCATED IN AN ATTIC OR BELOW CEILING RAFTERS AS SHOWN RAIN RAIN FLASHING RAFTERS FLASHING RAFTERS FINISHED CEILING SURFACE SUPPLY AIR DUCT SUPPLY AIR DUCT FINISHED CEILING SURFACE W/ GRILLE RETURN AIR RETURN AIR OPENING W/ GRILLE... - Page 14 This page intentionally left blank Manual 2100-606B Page 14 of 30...
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Page 15: Wiring - Main Power
TABLE 1 Diagram to Use with Unit and Vents WIRING – LOW VOLTAGE WIRING 230/208V, 1 phase and 3 phase equipment contain Vent FAD or No Vent dual primary voltage transformers. All equipment Vent Code leaves the factory wired on 240V tap. For 208V System Type Thermostat Programmable... -
Page 16: Diagram 1 Hp W/Opt. Elec. Heat No Econ
DIAGRAM 1 Basic Heat Pump with Optional Electric Heat No Economizer UNIT 24V TERMINAL BLOCK MIS-2977 Manual 2100-606B Page 16 of 30... -
Page 17: Diagram 2 Hp W/Econwmt Economizer
DIAGRAM 2 BASIC HEAT PUMP WITH OPTIONAL ELECTRIC HEAT WITH ECONWM ECONOMIZER UNIT 24V TERMINAL BLOCK PINK YELLOW BROWN/WHITE BLACK ORANGE ECONWMT ECONOMIZER MIS-2979 WIRING HARNESS REMOVE FACTORY INSTALLED JUMPER. Manual 2100-606B Page 17 of 30... -
Page 18: Start Up
START UP These units require R-410A refrigerant and Polyol Ester REMEMBER: When adding R-410A refrigerant, it oil. must come out of the charging cylinder/tank as a liquid to avoid any fractionation, and to ensure optimal GENERAL system performance. Refer to instructions for the cylinder that is being utilized for proper method of 1. -
Page 19: Important Installer Note
IMPORTANT INSTALLER NOTE PHASE MONITOR For improved start-up performance, wash the indoor All units with three phase scroll compressors are coil with a dish washing detergent. equipped with a three phase line monitor to prevent compressor damage due to phase reversal. HIGH AND LOW PRESSURE SWITCH The phase monitor in this unit is equipped with two All J**H wall mounted air conditioner series models... -
Page 20: Sequence Of Operation
SEQUENCE OF OPERATION reaches 30°F or below, the coil temperature sensor sends a signal to the control logic of the heat pump COOLING – Circuit R-Y makes at thermostat pulling control and the defrost timer will start accumulating in compressor contactor, starting the compressor run time. -
Page 21: Figure 8 Defrost Control Board
Low Pressure Switch Bypass Operation - The control has on the outdoor coil is shunted out and will activate the timing circuit. This permits the defrost cycle to a selectable (SW1) low pressure switch bypass set up to be checked out in warmer weather conditions without ignore the low pressure switch input during the first (30, 60, 120 or 180 seconds) of “Y”... -
Page 22: Troubleshooting
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 not start for 5 minutes. This is because of the 1. NOTE: A thorough understanding of the defrost compressor short cycle protection. -
Page 23: Checking Temperature Sensor
CHECKING TEMPERATURE SENSOR 3. Check resistance reading to chart of resistance. Use sensor ambient temperature. (Tolerance of OUTSIDE UNIT CIRCUIT part is ± 10%.) 1. Disconnect temperature sensor from board and 4. If sensor resistance reads very low, sensor is from outdoor coil. -
Page 24: Figure 9 Fan Blade Setting
FAN BLADE SETTING DIMENSIONS R-410A REFRIGERANT CHARGE Shown in Figure 9 is the correct fan blade setting for AHRI capacity and efficiency ratings are based on proper air delivery across the outdoor coil. Refer to testing done with the unit charged to the serial plate Table 5 for unit specific dimension. -
Page 25: Table 7 Cooling Pressure
TABLE 7 Cooling Pressure Table Air Temperature Entering Outdoor Coil °F Return Air Model Pressure Temperature 75 deg. DB Low SIde 62 deg. WB High Side 80 deg. DB Low SIde J18H 67 deg. WB High Side 85 deg. DB Low SIde 72 deg. -
Page 26: Table 9 Electrical Specifications J**H
TABLE 9 Electrical Specifications – J**H Series Single Circuit Multiple Circuit Maximum Circuit Minimum Circuit Field Power Wire Maximum No. of Exterior Fuse or Ground WIre Size Ampacity Size Minimum External Field Rated Volts, HZ Field Circuit Breaker Ground Models ... -
Page 27: Table 10 Recommended Airflow
TABLE 10 Recommended Airflow Rated Rated Recommended Factory Speed Model CFM* ESP* Airflow Range Connection J18H 600 575 - 725 High J24H 700 - 950 High J30H 1000 930 - 1300 High J36H 1100 930 - 1350 High J42H 1400 1600 - 1150 High... -
Page 28: Tables 12 Maximum Esp Electric Heat Only
TABLES 12 Maximum ESP of Operation Electric Heat Only Front Outlet Top Outlet Model High High Speed Speed Speed Speed Model J30H J18H J36H J24H J24H J30H J36H J24H J30H J36H J42H J48H J60H Model Speed KW High Speed Low Speed High Speed Low Speed High Speed... -
Page 29: Table 14 Optional Accessories
TABLE 14 Optional Accessories Part Number EHWH02A-A04 EHWH02A-A08 EHW24H-A04 EHW24H-A08 EHW24H-B06 EHWH30-A05 EHWH30-A10 EHWH36-A05 EHWH36-A10 EHWH36-A15 EHWH03-B06 EHW36H-B06 EHWH03-B09 EHW30H-B15 EHWC03A-C06 EHWH42-A05 EHWH42-A10 EHWH42-A15 EHWH-04-A20 EHWH05-B06 EHWH05-B09 EHWH05-B15 EHWH42-C06 EHWH05A-C09 EHWH05A-C15 EHWH04-A15 EHWH04-A10 EHW05H-B18 WMCB-02A WMCB-02B WMCB-03A WMCB-03B WMCB-06A WMCB-05B WMCB-07B WMCB-08A WMCB-09A... -
Page 30: Table 15 Vent & Control Options
TABLE 15 Vent and Control Options Part Number Description BFAD-2 Barometric Fresh Air Damper - Standard ECONWMS-E2B Economizer - Standard Versions, Enthalpy ECONWMT-E2B Economizer - Equipment Bldg., Enthalpy ECONWMT-T2B Economizer - Equipment Bldg., DB Temp. BFAD-3 Barometric Fresh Air Damper - Standard ECONWMS-E3B Economizer - Standard Versions, Enthalpy ECONWMT-E3B...