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INSTALLATION INSTRUCTIONS
Q24H3-A
Q30H3-A
Q24H3-B
Q30H3-B
Q24H3-C
Q30H3-C
Q-TEC
PACKAGED HEAT PUMP
Models:
Q36H3-A
Q36H3-B
Q36H3-C
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
SERIES
TM
Q43H3-A
Q43H3-B
Q43H3-C
Q48H3-A
Q60H3-A
Q48H3-B
Q60H3-B
Q48H3-C
Q60H3-C
Manual No.:
2100-652A
Supersedes:
2100-652
Date:
10-11-17
Page
1 of 42
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Table of Contents
Troubleshooting
Related Manuals for Bard Q24H3-A
Summary of Contents for Bard Q24H3-A
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Page 1: Installation Instructions
PACKAGED HEAT PUMP Models: Q24H3-A Q30H3-A Q36H3-A Q43H3-A Q48H3-A Q60H3-A Q24H3-B Q30H3-B Q36H3-B Q43H3-B Q48H3-B Q60H3-B Q24H3-C Q30H3-C Q36H3-C Q43H3-C Q48H3-C Q60H3-C Bard Manufacturing Company, Inc. Manual No.: 2100-652A Bryan, Ohio 43506 Supersedes: 2100-652 Date: 10-11-17 www.bardhvac.com Page 1 of 42... -
Page 2: Table Of Contents
CONTENTS Getting Other Information and Publications ..3 tart Up ............... 27 R-410A Refrigerant: General ........27 Q-TEC Series General Information ......4 Topping Off System Charge ........27 Q-TEC Model Nomenclature ........4 Safety Practices ............ 27 Shipping Damage ............ 7 Description of Standard Equipment ...... -
Page 3: Getting Other Information And Publications
GETTING OTHER INFORMATION AND PUBLICATIONS These publications can help when installing the air For more information, contact these publishers: conditioner or heat pump. They can usually be found at a local library or can be purchased directly from the ACCA Air Conditioning Contractors of America publisher. -
Page 4: Q-Tec Series General Information
Q-TEC SERIES GENERAL INFORMATION Q-TEC MODEL NOMENCLATURE – COIL OPTIONS X – Standard MODEL 1 – Phenolic coated HEAT FILTER OPTIONS NUMBER evaporator* PUMP X – 1" Fiberglass 2 – Phenolic coated (Standard) REVISION 0Z – 0KW condenser F – 2" Fiberglass 05 –... -
Page 5: Table 5 Table
TABLE 2 Electrical Specifications Single Circuit Dual Circuit Minimum Maximum Rated Field Maximum Circuit External Fuse or Field Power Ground MODEL Volts & Minimum Field Power External Ground Ampacity Ckt. Breaker Wire Size Wire Size Phase Circuit... -
Page 6: Figure 1 Unit Dimensions
Manual 2100-652A Page 6 of 42... -
Page 7: Shipping Damage
SHIPPING DAMAGE FIGURE 2 Air Seal Under Q-TEC Unit Upon receipt of equipment, the carton should be checked for external signs of shipping damage. The skid must remain attached to the unit until the unit is ready for installation. If damage is found, the receiving party must contact the last carrier immediately, preferably in writing, requesting inspection by the carrier’s agent. -
Page 8: Handling Unit After Removal From Skid
HANDLING UNIT AFTER REMOVAL be slid under the wheels of the unit. The strap of the appliance cart should be placed around the unit and FROM SKID strapped tightly. Help will be required to tip the unit WARNING back onto the cart. The unit can be leaned far enough back to be rolled through the door. -
Page 9: Figure 5 Installation With Duct-Free Plenum
FIGURE 5 Installation with Duct-Free Plenum FIGURE 6 Ducted Application Manual 2100-652A Page 9 of 42... -
Page 10: Duct Work
DUCT WORK When used with a ducted supply, a QCX Cabinet Extension can be used to conceal the duct work above Any heat pump is more critical of proper operating the unit to the ceiling. This extends 20" above the unit charge and an adequate duct system than a straight air for a total height above the floor of 10'-7/8". -
Page 11: Fresh Air Intake
This fresh air assembly is located in the Optional Rear Drain Kit, Bard Model QCDS48A, is also available for these products. The optional rear drain rear of the unit and to gain access to make these kit offers multiple benefits that include the following: adjustments remove the air filter service door. -
Page 12: Figure 9 Optional Side Drain
FIGURE 10 FIGURE 9 Optional Side Drain (Side View) Standard Rear Drain Q-TEC UNIT FIGURE 11 Rear Drain (Top View) Drain Line Wall (maximum 10" for rear drain) Sleeve Couplings not shown but recommended for ease of removability for service Wall Bracket Water... -
Page 13: Figure 12A Optional Rear Drain Kit
Manual 2100-652A Page 13 of 42... -
Page 14: Figure 12B Optional Rear Drain Kit
FIGURE 12B PLUG INSTALLED IN SIDE Q/Tec DRAIN REAR DRAIN CONNECTION IN Q/Tec PRODUCT IMPORTANT! 1/2" SLIP X 1/2" SLIP X 3/4" NPT TEE SUPPLIED WITH DRAIN BOX KIT 3/4" PLASTIC PIPE NIPPLE (TIGHTEN THREADS SO TEE IS SUPPLIED WITH DRAIN BOX KIT HORIZONTAL TO FLOOR) (APPLY TEFLON TAPE TO THREADS) -
Page 15: Figure 12C Optional Rear Drain Kit
FIGURE 12C REMOVE KNOCK-OUT FOR INDOOR DRAIN HOSE CONNECTOR (If used) MIS-2471 A Manual 2100-652A Page 15 of 42... -
Page 16: Figure 12D Optional Rear Drain Kit
FIGURE 12D DRAIN HOSE FROM INDOOR DRAIN PAN. MOVE HOSE FROM ATTACHMENT IN LOWER DRAIN PAN AND SLIDE ONTO DRAIN BOX BARB FITTING, SECURING WITH SUPPLIED CLAMP IF OUTDOOR PAN IS BYPASSED. ( WILL REDUCE RISK OF ALGAE GROWTH IN THE OUTDOOR PAN BUT AT A SLIGHT COOLING PERFORMANCE REDUCTION OF 2-3% ) MIS-2472 A... -
Page 17: Figure 13A Unit Mounting - Method 1
FIGURE 13A Unit Mounting – Method 1 Side Trim (2 PCS.) Enlarged view of mounting bracket showing sleeve to cabinet attachment Side Trim (2 PCS.) Mounting Bracket Wall Sleeve #8 Screw Provided (Light Color) Mounting Bracket Cabinet Side Panel #10 Hex Head Screw Bottom Trim Provided... -
Page 18: Installation
INSTALLATION MOUNTING THE UNIT centered in the sleeve. Also check the alignment to the mounting brackets. This unit must be level When installing a Q-TEC unit near an interior wall on from side to side. If adjustments are necessary, the left side, a minimum of 8" is required but 12" is shim up under the rollers with sheets of steel or preferred. -
Page 19: Wiring - Main Power
WIRING – MAIN POWER The field wiring connections are located behind the top and hinged panel in the circuit breaker panel (see Refer to the unit rating plate and/or Table 2 for wire Figure 15). sizing information and maximum fuse or circuit breaker size. -
Page 20: Low Voltage Connections
When the thermostat is set in the automatic mode, control options. If the climate control option is the thermostat can change automatically to the heat abandoned and connections are made directly to P2 or cool modes to maintain the temperature set on the both pins 6 and 1 of P2 must be energized for proper thermostat. -
Page 21: Figure 16 Thermostat Plug Terminals
TABLE 4 Wall Thermostats and Controls Thermostat Predominant Features 8403-067 Carbon Dioxide Sensor with LCD for Sensor Readings 3 stage Cool; 3 stage Heat 8403-060 Programmable/Non-Programmable Electronic (1120-445) HP or Conventional Auto or Manual changeover 2 stage Cool; 2 stage Heat 8403-084 Programmable/Non-Programmable Electronic (VT8600U5000B) -
Page 22: Figure 17A T-Stat Wiring Diagram "X" Opt
FIGURE 17A Remote Thermostat Wiring Diagram "X" Thermostat Option REMOTE THERMOSTAT WIRING DIAGRAM "X" THERMOSTAT OPTION Thermostat Thermostat Low Voltage CS9BE-THO Bard Part Bard Part CS9BE-THOC Terminal Block Plug #2 #8403-060 #8403-084 Orange Orange Red/Yellow W1/E W1/E Brown/White Yellow Blue... - Page 23 Yellow Blue Brown Red/White Black/White Thermostat Thermostat Bard Part #8403-084 Bard Part #8403-060 Low Voltage Terminal Block Jumper W2 to W3 at terminal block when Factory installed jumper. using 8403-084 with unit with 15 KW. Mount relay in low voltage terminal block compartment.
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Page 24: Figure 17B T-Stat Wiring Diagram "X" Opt. W/Demand .23 Figure 18 T-Stat Wiring Diagram "D" Opt
FIGURE 18 Unit Mounted Thermostat Wiring Diagram "D" Thermostat Option Plug #2 Temp. and Humidity Orange Controller PART #8403-060 Red/Yellow W1/E Brown/White Orange Yellow Blue Brown Red/White Black/White 4102-060 Manual 2100-652A Page 24 of 42... -
Page 25: Figure 19 T-Stat Wiring Diagram "H" Option
FIGURE 19 Unit Mounted Thermostat Wiring Diagram "H" Thermostat Option CO2 Controller Red/White Part #8403-067 24 VAC Black/White Analog Relay Part #8201-062 Plug #2 Orange Orange Red/Yellow W1/E Brown/White Orange Temp. and Humidity Yellow Controller Part #8403-060 Blue Brown Red/White Black/White 4102-059 A Manual 2100-652A... -
Page 26: Figure 20 T-Stat Wiring Diagram "B" Or "C" Opt
FIGURE 20 Unit Mounted Thermostat Wiring Diagram "B" or "C" Thermostat Option Temp. and Humidity Plug #2 Controller Orange B-CS9BE-THO C-CS9BE-THOC Red/Yellow W1/E Brown/White Orange Yellow Blue Brown Red/White Black/White 4102-078 Manual 2100-652A Page 26 of 42... -
Page 27: Tart Up
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 28: Description Of Standard Equipment
DESCRIPTION OF STANDARD PHASE MONITOR EQUIPMENT All units with three phase scroll compressors are equipped with a three phase line monitor to prevent Solid State Electronic Heat Pump Control compressor damage due to phase reversal. Provides efficient 30-minute defrost cycle. A The phase monitor in this unit is equipped with two thermistor sensor and speed up terminal for service LEDs. -
Page 29: Service Hints
SERVICE HINTS 7. Annual maintenance is required to make sure that all of the systems are functioning properly. 1. Caution user to maintain clean air filters at all Check to make sure that the drains are not times and to not needlessly close off supply air obstructed in any way. -
Page 30: Vent Options
VENT OPTIONS Q-TEC ENERGY RECOVERY VENTILATOR (Option) Before starting, make sure that the power has been Barometric Fresh Air Damper (Standard) turned off. The return air grille panel must be Before starting, make sure the power has been turned removed. The energy recovery ventilator (QERV) can be off. -
Page 31: Figure 21 Fresh Air Damper Removal
FIGURE 21 Fresh Air Damper Removal MOUNTING SCREW Manual 2100-652A Page 31 of 42... -
Page 32: Figure 22 Qerv Removal
FIGURE 22 QERV Removal POWER CONNECTORS MOUNTING SCREWS LOWER BLOWER ASSEMBLY POWER CONNECTOR FRONT FILL Manual 2100-652A Page 32 of 42... -
Page 33: Controller
SEQUENCE OF OPERATION High/Low Pressure control provides protection for the compressor. In the event system pressures go above Cooling – Circuit R-Y makes at thermostat, pulling 600 PSI or below 15 PSI in either cooling or heating in compressor contactor and starting the compressor mode, the compressor will be stopped. -
Page 34: Pressure Service Ports
PRESSURE SERVICE PORTS There is a cycle speed up jumper on the control. This can be used for testing purposes to reduce the time High and low pressure service ports are installed on between defrost cycle operation without waiting for all units so that the system operating pressures can be time to elapse. -
Page 35: Figure 24 Defrost Control Board
High Pressure Switch Operation – The control has a reset, which at that point then allows the compressor to built-in lockout system that allows the unit to have the be restarted as long as the 5-minute short cycle timer has high pressure switch trip up to two times in 1 hour and run out. -
Page 36: Troubleshooting
TROUBLESHOOTING SOLID STATE HEAT PUMP CONTROL 4. Set system switch to “heat” or “cool”. Adjust thermostat to call for heat or cool. The indoor TROUBLESHOOTING PROCEDURE blower, compressor and outdoor fan should start. NOTE: A thorough understanding of the defrost NOTE: If there was no power to 24 volt transformer, cycle sequence is essential. -
Page 37: Table 7 Table
CHECKING TEMPERATURE SENSOR 4. If sensor resistance reads very low, then sensor is shorted and will not allow proper operation of the 1. Disconnect temperature sensor from board and heat pump control. from outdoor coil. 5. If sensor is out of tolerance, shorted, open or reads 2. -
Page 38: Troubleshooting Ecm™ Blower Motors
TROUBLESHOOTING ECM ™ BLOWER 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 39: Figure 25 Control Disassembly
Replacing ECM Control Module ECM 2.0 CONTROL AND MUST BE USED IF SECURE ATTACHMENT OF THE CONTROL TO THE MOTOR To replace the control module for the GE variable-speed indoor blower IS TO BE ACHIEVED. DO NOT OVERTIGHTEN THE motor, take the following steps: BOLTS. -
Page 40: Figure 28 Fan Blade Setting
FAN BLADE SETTING DIMENSIONS R-410A REFRIGERANT CHARGE Any service work requiring removal or adjustment in the This unit was charged at the factory with the quantity fan and/or motor area will require that the dimensions of refrigerant listed on the serial plate. AHRI capacity in Table 7 be checked and blade adjusted in or out of and efficiency ratings were determined by testing with this refrigerant charge quantity. -
Page 41: Cooling Pressure
TABLE 9 Cooling Pressure (All Temperatures in Degrees F) RETURN AIR TEMPERATURE ENTERING OUTDOOR COIL MODEL PRESSURE 75° 80° 85° 90° 95° 100° 105° 110° 115° 120° TEMP. 75 DB Low Side 62 WB High Side 80 DB Low Side Q24H3 67 WB High Side... -
Page 42: Table 10 Heating Pressure
TABLE 10 Heating Pressure (All Temperatures in Degrees F) RETURN AIR TEMPERATURE ENTERING OUTDOOR COIL MODEL PRESSURE 0° 5° 10° 15° 20° 25° 30° 35° 40° 45° 50° 55° 60° TEMP. Low Side Q24H3 High Side Low Side Q30H3 High Side Low Side Q36H3...