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INSTALLATION INSTRUCTIONS
WALL MOUNTED
PACKAGE HEAT PUMPS
Standard & Dehumidification
T24H1
T30H1
T36H1
T42H1
T48H1
T60H1
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
Since 1914...Moving ahead just as planned.
MODELS
T24H1D
T30H1D
T36H1D
T42H1D
T48H1D
T60H1D
Manual:
2100-541D
Supersedes:
2100-541C
File:
Volume III Tab 17
Date:
03-28-14
Manual
2100-541D
Page
1 of 28
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Table of Contents
Troubleshooting
Related Manuals for Bard T24H1
Summary of Contents for Bard T24H1
- Page 1 T30H1 T30H1D T36H1 T36H1D T42H1 T42H1D T48H1 T48H1D T60H1 T60H1D Manual: 2100-541D Bard Manufacturing Company, Inc. Supersedes: 2100-541C Bryan, Ohio 43506 File: Volume III Tab 17 Since 1914...Moving ahead just as planned. Date: 03-28-14 Manual 2100-541D Page 1 of 28...
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Page 2: Table Of Contents
Contents Getting Other Information and Publications Start Up General ............... 16 Wall Mount General Information Topping Off System Charge ........16 Wall Mount Model Nomenclature ......4 Safety Practices ............16 Shipping Damage ............. 4 Important Installer Note ........... 17 General .............. -
Page 3: Getting Other Information And Publications
GETTING OTHER INFORMATION AND PUBLICATIONS FOR MORE INFORMATION, CONTACT These publications can help you install the air conditioner or heat pump. You can usually find these THESE PUBLISHERS: 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 Information
WALL MOUNT GENERAL INFORMATION HEAT PUMP WALL MOUNT MODEL NOMENCLATURE – MODEL REVISIONS CONTROL MODULES NUMBER 0Z - 0KW (See Spec. Sheet S3436) 04 - 4KW CAPACITY | 05 - 5KW 24 - 2 Ton H - Heat Pump 06 - 6KW COIL OPTIONS VOLTS &... -
Page 5: Duct Work
CONDENSATE DRAIN Any grille that meets with 5/8 inch louver criteria may be used. It is recommended that Bard Return Air Grille Kit A plastic drain hose extends from the drain pan at RG2 through RG5 or RFG2 through RFG5 be installed the top of the unit down to the unit base. -
Page 6: 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 7: Figure 2 Unit Dimensions
FIGURE 2 Dimensions of Basic Unit for Architectural and Installation Requirements (Nominal) Supply Return Width Depth Height Model T24H 38.200 17.125 70.563 7.88 27.88 13.88 27.88 40.00 10.88 25.75 17.93 26.75 28.75 29.25 27.00 2.63 39.13 22.75 9.14 5.00 12.00 5.00 T30H T36H 42.075 22.432 84.875 9.88 29.88 15.88 29.88 43.88 13.56 31.66 30.00 32.68 26.94 34.69 32.43 3.37 43.00 23.88 10.00 1.44 16.00 1.88... -
Page 8: Figure 3A Mounting Instructions T24 & 30
Manual 2100-541D Page 8 of 28... -
Page 9: Figure 3B Mounting Instructions T36, 42, 48
Manual 2100-541D Page 9 of 28... -
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 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 12: 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 13: Wiring - Main Power
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 voltage transformers. All equipment leaves the factory and maximum fuse or “HACR” type circuit breaker wired on 240V tap. -
Page 14: Optional Outdoor T-Stat Applications
FIGURE 8 COMPRESSOR CUTOFF THERMOSTAT WIRING 4 – 10KW 1 PH – 6 & 9KW 3 PH FIGURE 9 COMPRESSOR CUTOFF THERMOSTAT WIRING 15 – 20KW 1 PH AND 3 PH OPTIONAL OUTDOOR THERMOSTAT OPTIONAL COMPRESSOR CUTOFF APPLICATIONS THERMOSTAT (See Figures 8 & 9) Since most equipment at the time of manufacture is not Heat pump compressor operation at outdoor designated for any specific destination of the country... -
Page 15: Figure 10 Electric Heat Hold-Off Wiring
efficiency by utilizing the heat pump to bring the ELECTRIC HEAT HOLD-OFF (See Figures 10 & 11) conditioned space temperature up, rather than cycling on the electric heat due a second stage call for heat In other applications, it is desirable to disable the from the thermostat on start-up coming off a night set- operation of the electric heat until outdoor temperatures back condition or someone increasing the thermostat... -
Page 16: Start Up
TOPPING OFF SYSTEM CHARGE 8. Store cylinders in a cool area, out of direct sunlight. If a leak has occurred in the system, Bard Manufacturing recommends reclaiming, evacuating 9. Never heat cylinders above 125°F. (see criteria above), and charging to the nameplate 10. -
Page 17: Important Installer Note
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 &... -
Page 18: Sequence Of Operation
SEQUENCE OF OPERATION circumstances require a change to another time, remove the wire from the 60-minute terminal and reconnect to the desired COOLING – Circuit R-Y makes at thermostat pulling in terminal. Refer to Figure 12. compressor contactor, starting the compressor and outdoor There is a cycle speed up jumper on the control. -
Page 19: Figure 12 Defrost Control Board
FIGURE 12 DEFROST CONTROL BOARD TIME (SEC) LOW PRESSURE BYPASS TIMER SWITCH 120* *(FACTORY SETTING 120 SECONDS) ACCUMULATED DEFROST TIME TIMER (FACTORY SETTING 60 MIN.) MIS-2668 A Manual 2100-541D Page 19 of 28... -
Page 20: 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 1. NOTE: A thorough understanding of the defrost not start for 5 minutes. This is because of cycle sequence is essential. -
Page 21: Checking Temperature Sensor
CHECKING TEMPERATURE SENSOR 3. Check resistance reading to chart of resistance. Use OUTSIDE UNIT CIRCUIT sensor ambient temperature. (Tolerance of part is ± 10%.) 1. Disconnect temperature sensor from board and 4. If sensor resistance reads very low, then sensor is from outdoor coil. -
Page 22: Figure 13 Fan Blade Setting
TROUBLESHOOTING REMOVAL OF FAN SHROUD FAN BLADE SETTING DIMENSIONS 1. Disconnect all power to the unit. Shown in Figure 13 is the correct fan blade setting for proper air delivery across the outdoor coil. Refer to 2. Remove the screws holding both grilles, one on Table 4 for unit specific dimension. -
Page 23: Table 5A Cooling Pressure
TABLE 5A COOLING PRESSURE TABLE Air Temperature Entering Outdoor Coil °F Return Air Model Pressure Temperature 75° DB Low Side 62° WB High Side 80° DB Low Side T24H 67° WB High Side 85° DB Low Side 72° WB High Side 75°... -
Page 24: Table 6A Electrical Specifications T**H
Circuits Ampacity Ckt. Brkr. Size Ckt. A Ckt. B Ckt. C Ckt. A Ckt. B Ckt. C Ckt. A Ckt. B Ckt. C Ckt. A Ckt. B Ckt. C T24H1-A00, A0Z -A04 230/208-60-1 -AS8 -AF8 1 or 2... -
Page 25: Table 6B Electrical Specifications T**H Dehum
TABLE 6B Electrical Specifications — T**H Series Dehumidification Single Circuit Multiple Circuit Minimum Maximum Maximum Field Rated Volts, Field Minimum Circuit External Fuse or Field Power Wire Ground MODEL External Power Ground HZ &... -
Page 26: Table 7 Indoor Blower Performance
TABLE 7 T**H INDOOR BLOWER PERFORMANCE - CFM (0.00" — 0.50" H 0) Blower Only Blower Only Rated Cooling Model Except for Electric Max. ESP & Heat CRVMP CRVMP Heat Pump Vent Options Vent Options T24H 1000 T30H... -
Page 27: Troubleshooting Ecm Motors
TROUBLESHOOTING ECM MOTORS ™ Symptom Cause/Procedure CAUTION: • Noisy blower or cabinet • Check for loose blower housing, panels, etc. Disconnect power from unit before removing or replacing • High static creating high blower speed? connectors, or servicing motor. To avoid electric shock from - Check for air whistling through seams in the motor’s capacitors, disconnect power and wait at least 5 ducts, cabinets or panels... -
Page 28: Figure 14 Control Disassembly
TROUBLESHOOTING ECM MOTORS CONT’D. ™ TROUBLESHOOTING GE ECM ™ MOTORS CONT’D. 8b. IF REPLACING AN ECM 2.3 CONTROL WITH AN ECM 2.3 Replacing ECM Control Module CONTROL, the plastic tab and shorter through-bolts are not needed. The To replace the control module for the GE variable-speed indoor blower motor 8b.