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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:
2100-541C
Supersedes:
2100-541B
File:
Volume III Tab 17
Date:
02-17-12
Manual
2100-541C
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: 2100-541C Bard Manufacturing Company, Inc. Supersedes: 2100-541B Bryan, Ohio 43506 File: Volume III Tab 17 Since 1914...Moving ahead just as planned. Date: 02-17-12 Manual 2100-541C 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 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 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
5/8 inch. shipped with each unit. Any grille that meets with 5/8 inch louver criteria may be used. It is recommended that Bard Return Air Grille Kit CONDENSATE DRAIN RG2 through RG5 or RFG2 through RFG5 be installed A plastic drain hose extends from the drain pan at the when no return duct is used. -
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. 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 7: Figure 2 Unit Dimensions
FIGURE 2 All dimensions are in inches. Dimensional drawings are not to scale. T**H RIGHT UNIT Built In Rain Hood 4° Pitch Heater 2.13 Access Side Wall Panel Supply Air Opening Mounting Electric Brackets Heat (Built In) C. Breaker/ Disconnect Access Panel Top Rain Flashing... -
Page 8: Figure 3A Mounting Instructions T24 & 30
Manual 2100-541C Page 8 of 28... -
Page 9: Figure 3B Mounting Instructions T36, 42, 48
Manual 2100-541C 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 – LOW VOLTAGE WIRING WIRING – MAIN POWER 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
ELECTRIC HEAT HOLD-OFF efficiency by utilizing the heat pump to bring the (See Figures 10 & 11) conditioned space temperature up, rather than cycling on the electric heat due a second stage call for heat from In other applications, it is desirable to disable the the thermostat on start-up coming off a night set-back operation of the electric heat until outdoor temperatures condition or someone increasing the thermostat set... -
Page 16: Start Up
7. Never fill cylinders over 80% of total capacity. TOPPING OFF SYSTEM CHARGE 8. Store cylinders in a cool area, out of direct If a leak has occurred in the system, Bard Manufacturing sunlight. recommends reclaiming, evacuating (see criteria above), 9. -
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 COOLING – Circuit R-Y makes at thermostat pulling in desired 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 2100-541C 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 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 13 Fan Blade Setting
TROUBLESHOOTING FAN BLADE SETTING DIMENSIONS REMOVAL OF FAN SHROUD 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 each Table 4 for unit specific dimension. -
Page 23: Table 5A Cooling Pressure
TABLE 5A COOLING PRESSURE TABLE Air Temperature Entering Outdoor Coil °F Low side pressure ± 4 PSIG High side pressure ± 10 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 charge weight. -
Page 24: Table 6A Electrical Specifications T**H
TABLE 6A Electrical Specifications — T**H Series c r i t i u p i t c r i t i u t i u i n i , s t . n i t i u t i u y t i . -
Page 25: Table 6B Electrical Specifications T**H Dehum
TABLE 6B Electrical Specifications — T**H Series Dehumidification c r i t i u p i t c r i t i u t i u i n i , s t . n i t i u t i u y t i . -
Page 26: Table 7 Indoor Blower Performance
TABLE 7 0) 1 T**H INDOOR BLOWER PERFORMANCE - CFM (0.00" — 0.50" H 2 2 2 2 2 3 3 3 3 3 4 4 4 4 4 1 1 1 1 1 4 4 4 4 4 & NOTE: These units are equipped with a variable speed (ECM) indoor motor that automatically adjusts itself to maintain approximately the same rate of indoor airflow in both heating &... -
Page 27: Troubleshooting Ge Ecm Motors
TROUBLESHOOTING GE ECM MOTORS ™ CAUTION: Symptom Cause/Procedure • 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 - Check for air whistling through seams in from the motor’s capacitors, disconnect power and wait at ducts, cabinets or panels... -
Page 28: Figure 14 Control Disassembly
TROUBLESHOOTING GE ECM MOTORS CONT’D. ™ 8b. IF REPLACING AN ECM 2.3 CONTROL WITH AN ECM Replacing ECM Control Module 2.3 CONTROL, the plastic tab and shorter through-bolts are not needed. To replace the control module for the GE variable-speed indoor blower motor The control can be oriented in two positions 180°...