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Troubleshooting
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Summary of Contents for Bard T30S2-A
- Page 1 INSTALLATION INSTRUCTIONS Wall-Mounted Packaged Heat Pump Standard and Dehumidification Models: T30S2-A T30S2DA T30S2-B T30S2DB T30S2-C T30S2DC Bard Manufacturing Company, Inc. Manual: 2100-718A Bryan, Ohio 43506 Supersedes: 2100-718 Date: 5-14-21 www.bardhvac.com Page 1 of 26...
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Page 2: Table Of Contents
CONTENTS Getting Other Information and Publications ..3 Start Up ..............13 General ............13 Wall Mount General Information ......4 Topping Off System Charge ......... 13 Wall Mount Model Nomenclature ......4 Safety Practices ..........13 Shipping Damage ..........4 Important Installer Note ........ -
Page 3: Getting Other Information And Publications
GETTING OTHER INFORMATION AND PUBLICATIONS These publications can help when installing the For more information, contact these publishers: furnace. 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 the current edition of each 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 S3447) 04 – 4KW CAPACITY 05 – 5KW 30 – 2½ Ton S – Step Capacity 06 – 6KW COIL OPTIONS VOLTS &... -
Page 5: Duct Work
5/8". CONDENSATE DRAIN Any grille that meets with 5/8" louver criteria may be used. It is recommended that Bard Return Air A plastic drain hose extends from the drain pan at Grille Kit RG2 through RG5 or RFG2 through RFG5 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" clearance between in the unit falling, causing injury or death! the supply duct and a combustible surface Follow all mounting instructions. for the first 3ʹ... -
Page 7: Figure 2 Unit Dimensions
FIGURE 2 Dimensions of Basic Unit for Architectural and Installation Requirements (Nominal) Supply Return Model Width Depth Height T30S 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 All dimensions are in inches. -
Page 8: Figure 3 Mounting Instructions T30
Manual 2100-718A Page 8 of 26... -
Page 9: Figure 4 Electric Heat Clearance
FIGURE 4 Electric Heat Clearance SIDE SECTION VIEW OF SUPPLY AIR DUCT FOR WALL MOUNTED UNIT SHOWING 1/4" 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 3ʹ... -
Page 10: 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 11: Figure 7 Common Wall Mounting Installations
FIGURE 7 Common Wall Mounting Installations Non-Ducted Installations Ducted Installations Unit is Unit is Ceiling Ceiling sealed to sealed to wall. wall. Supply Air Duct Adjustable Supply Grille Optional Dropped Ceiling Wall Wall Mount Mount Fixed Blade Unit Unit Fixed Blade Return Grille Return Grille Indoor Area Indoor Area... -
Page 12: Wiring - Main Power
WIRING – MAIN POWER WIRING – LOW VOLTAGE WIRING All 230/208V 1 phase and 3 phase equipment have Refer to the unit rating plate for wire sizing information and maximum fuse or circuit breaker size. Each dual primary voltage transformers. All equipment outdoor unit is marked with a “Minimum Circuit leaves the factory wired on 240V tap. -
Page 13: Start Up
8. Store cylinders in a cool area, out of direct TOPPING OFF SYSTEM CHARGE sunlight. If a leak has occurred in the system, Bard 9. Never heat cylinders above 125°F. Manufacturing recommends reclaiming, evacuating (see criteria above) and charging to the nameplate charge. -
Page 14: Important Installer Note
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 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 LEDs. -
Page 15: Sequence Of Operation
SEQUENCE OF OPERATION obtained at www.fastestinc.com/en/SCCA07H. See the replacement parts manual for replacement core part Cooling Stage 1 numbers. Circuit R-Y makes at thermostat pulling in compressor DEFROST CYCLE contactor, starting the compressor and outdoor motor. The G (indoor motor) circuit is automatically completed The defrost cycle is controlled by temperature and time on any call for cooling operation or can be energized on the solid state heat pump control. -
Page 16: Figure 8 Defrost Control Board
run through the 1-minute minimum defrost length service technician to override or speed up this timing sequence in a matter of seconds and will automatically period, and shorting out the SPEEDUP terminals for a terminate the defrost sequence. few seconds can do this. There is an initiate defrost jumper (sen jump) on the Low Pressure Switch Bypass Operation control that can be used at any outdoor ambient during... -
Page 17: Service
SERVICE SOLID STATE HEAT PUMP CONTROL NOTE: If there was no power to 24 volt transformer, the compressor and outdoor fan motor will not TROUBLESHOOTING PROCEDURE start for 5 minutes. This is because of the 1. NOTE: A thorough understanding of the defrost compressor short cycle protection. -
Page 18: 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, then sensor is from outdoor coil. -
Page 19: Figure 9 Fan Blade Setting
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 20: Table 5A Cooling Pressure
TABLE 5A Cooling Pressures 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 T30S 67 deg. WB High Side 85 deg. DB Low SIde 72 deg. -
Page 21: Table 6A Electrical Specifications T**S
TABLE 6A Electrical Specifications − T**S Series Single Circuit Multiple Circuit Maximum Minimum Circuit Maximum Field Power Ground Field Rated Volts, Circuit Exterior Fuse Minimum External Ground Field Wire Size WIre Size Power Models HZ and Ampacity or Circuit Circuit Fuse or WIre Power... -
Page 22: Table 6B Electrical Specifications T**S Dehum
TABLE 6B Electrical Specifications − T**S Series Dehumidification Single Circuit Multiple Circuit Maximum Minimum Circuit Maximum Field Power Ground Field Rated Volts, Circuit Exterior Fuse Minimum External Ground Field Wire Size WIre Size Power Models HZ and Ampacity or Circuit Circuit Fuse or WIre... -
Page 23: Table 7 Indoor Blower Performance
TABLE 7 T**S Indoor Blower Performance – CFM (0.00" - 0.50" H 0) Rated Cooling Cooling Model Blower Electric & Heating & Heating Only Heat 1st Stage 2nd Stage T30S 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 24: Troubleshooting Ge Ecm Motors
TROUBLESHOOTING GE ECM MOTORS Symptom Cause/Procedure • Noisy blower or cabinet • Check for loose blower housing, panels, etc. • High static creating high blower speed? CAUTION: - Check for air whistling through seams in Disconnect power from unit before removing or ducts, cabinets or panels replacing connectors, or servicing motor. -
Page 25: Figure 10 Control Disassembly
motor. Using the two through-bolts provided with the Replacing ECM Control Module replacement control, reattach the can to the motor. To replace the control module for the GE variable-speed indoor The two through-bolts provided with the replacement blower motor, take the following steps: ECM 2.3 control are shorter than the bolts originally The correct replacement module must be used. -
Page 26: Table 8 Dehumidification Relay Logic Board
Manual 2100-718A Page 26 of 26...