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INSTALLATION INSTRUCTIONS
PACKAGED HEAT PUMP
C24H2-A
C24H2-B
C30H2-A
C30H2-B
C30H2-C
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
WALL MOUNTED
Models:
C36H1-A
C36H1-B
C36H1-C
C42H1-A
C42H1-B
C42H1-C
C48H1-A
C48H1-B
C48H1-C
C60H1-A
C60H1-B
C60H1-C
Manual:
2100-719
Supersedes: NEW
Date:
9-30-19
Page
1 of 25
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Table of Contents
Troubleshooting
Related Manuals for Bard C24H2-A
Summary of Contents for Bard C24H2-A
- Page 1 WALL MOUNTED PACKAGED HEAT PUMP Models: C24H2-A C36H1-A C48H1-A C24H2-B C36H1-B C48H1-B C30H2-A C36H1-C C48H1-C C30H2-B C42H1-A C60H1-A C30H2-C C42H1-B C60H1-B C42H1-C C60H1-C Bard Manufacturing Company, Inc. Manual: 2100-719 Bryan, Ohio 43506 Supersedes: NEW Date: 9-30-19 www.bardhvac.com Page 1 of 25...
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Page 2: Table Of Contents
CONTENTS Getting Other Information and Publications Start Up General ............... 14 Wall Mount General Information Topping Off System Charge ........14 Wall Mount Model Nomenclature ......4 Safety Practices ............14 Shipping Damage ............. 4 Important Installer Note ........... 15 General .............. -
Page 3: Getting Other Information And Publications
GETTING OTHER INFORMATION AND PUBLICATIONS These publications can help when installing the air FOR MORE INFORMATION, CONTACT conditioner or heat pump. They can usually be found THESE PUBLISHERS: at the local library or purchased 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 0C - 0KW (See Spec. Sheet S3459) 0Z - 0KW CAPACITY | 04 - 4KW 24 - 2 Ton H - Heat Pump 05 - 5KW COIL OPTIONS 30 - 2½... -
Page 5: Duct Work
Any grille that meets with 5/8 inch louver criteria may be CONDENSATE DRAIN 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 WARNING WARNING Failure to bolt the unit to the wall could result Failure to provide the 1/4 inch clearance in the unit falling, causing injury or death! between the supply duct and a combustible Follow all mounting instructions. surface for the first 3 feet of duct can result in fire causing damage, injury or death. -
Page 7: Figure 2 Unit Dimensions
shipping brackets after the unit is in its final operating location. Remove the side grille to gain access to the compressor shipping brackets. The brackets are located on the compressor double isolation base at the front and rear of the compressor. The brackets are secured to the unit base with two (2) screws, and secured to the isolation plate with a 1/4"... -
Page 8: Figure 3A Mounting Instructions C24H, C30H
Manual 2100-719 Page 8 of 25... -
Page 9: Figure 3B Mounting Instructions C36, 42, 48, 60H
Manual 2100-719 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 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 Refer to the unit rating plate for wire sizing information 230/208V, 1 phase and 3 phase units are equipped with and maximum fuse or “HACR” type circuit breaker dual primary voltage transformers. All equipment leaves the factory wired on 240V tap. -
Page 14: Start Up
8. Store cylinders in a cool area, out of direct sunlight. TOPPING OFF SYSTEM CHARGE 9. Never heat cylinders above 125°F. If a leak has occurred in the system, Bard 10. Never trap liquid R-410A in manifold sets, gauge Manufacturing recommends reclaiming, evacuating lines or cylinders. R-410A expands significantly (see criteria above), and charging to the nameplate at warmer temperatures. -
Page 15: 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 16: Sequence Of Operation
SEQUENCE OF OPERATION After 30, 60 or 90 minutes of heat pump operation at 30°F or below, the heat pump control will place the system in the COOLING STAGE 1 – Circuit R-Y makes at thermostat defrost mode. pulling in compressor contactor, starting the compressor and During the defrost mode, the refrigerant cycle switches back outdoor motor. -
Page 17: Figure 8 Defrost Control Board
Low Pressure Switch Bypass Operation - The control has a High Pressure Switch Operation - The control has a built-in lockout system that allows the unit to have the high pressure selectable (SW1) low pressure switch bypass set up to ignore the low pressure switch input during the first (30, 60, 120 or switch trip up to two times in one hour and only encounter a 180 seconds) of “Y”... -
Page 18: 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 19: 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 20: Figure 9 Fan Blade Setting
TROUBLESHOOTING FAN BLADE SETTING DIMENSIONS REMOVAL OF FAN SHROUD Shown in Figure 9 is the correct fan blade setting for 1. Disconnect all power to the unit. 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 21: Table 5A Cooling Pressure
TABLE 5A COOLING PRESSURE TABLE COOLING AIR TEMPERATURE ENTERING OUTDOOR COIL °F RETURN AIR MODEL PRESSURE 75°F 80°F 85°F 90°F 95°F 100°F 105°F 110°F 115°F 120°F TEMPERATURE 75° DB LOW SIDE 62° WB HIGH SIDE 80° DB LOW SIDE C24H 67°... -
Page 22: Table 6 Electrical Specifications C**H
TABLE 6 Electrical Specifications — C**H Series Single Circuit Multiple Circuit Rated k Max. Circuit Field k Max. Field Minimum Circuit Field Power Model Volts & Ground Wire Exterior Fuse Power Minimum External Power Ampacity Wire Size Phase... -
Page 23: Table 7 Indoor Blower Performance
TABLE 7 0) C**H INDOOR BLOWER PERFORMANCE - CFM (0.00" — 0.50" H Rated Cooling Cooling Model Blower Electric & Heat Pump & Heat Pump Only Heat Stage 1 Stage 2 C24H C30H C36H 1100 1100 C42H 1250... -
Page 24: 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 from - Check for air whistling through seams in the motor’s capacitors, disconnect power and wait at least 5 ducts, cabinets or panels... -
Page 25: Figure 10 Control Disassembly
TROUBLESHOOTING GE ECM MOTORS CONT’D. ™ Replacing ECM Control Module 8b. IF REPLACING AN ECM 2.3 CONTROL WITH AN ECM 2.3 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 control can be oriented in two positions 180°...