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INSTALLATION INSTRUCTIONS
PACKAGED HEAT PUMP
Q24H2-A
Q30H2-A
Q24H2-B
Q30H2-B
Q24H2-C
Q30H2-C
Q-TEC SERIES
Models:
Q36H2-A
Q36H2-B
Q36H2-C
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
Q42H2-A
Q48H2-A
Q42H2-B
Q48H2-B
Q42H2-C
Q48H2-C
Manual No.:
Supersedes:
Date:
Q60H2-A
Q60H2-B
Q60H2-C
2100-601B
2100-601A
10-30-14
Page
1 of 42
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Table of Contents
Troubleshooting
Related Manuals for Bard Q24H2-A
Summary of Contents for Bard Q24H2-A
- Page 1 PACKAGED HEAT PUMP Models: Q24H2-A Q30H2-A Q36H2-A Q42H2-A Q48H2-A Q60H2-A Q24H2-B Q30H2-B Q36H2-B Q42H2-B Q48H2-B Q60H2-B Q24H2-C Q30H2-C Q36H2-C Q42H2-C Q48H2-C Q60H2-C Bard Manufacturing Company, Inc. Manual No.: 2100-601B Bryan, Ohio 43506 Supersedes: 2100-601A Date: 10-30-14 www.bardhvac.com Page 1 of 42...
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Page 2: Table Of Contents
CONTENTS Getting Other Information and Publications tart Up For more information, contact these publishers: ... 3 R-410A Refrigerant Required ......... 27 Topping Off System Charge ........... 27 General Information Safety Practices.............. 27 Q-TEC Model Nomenclature......... 4 Description of Standard Equipment ........ 28 Shipping Damage ............ -
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 standard. -
Page 4: Q-Tec Model Nomenclature
Series General Information Q-TEC™ MODEL NOMENCLATURE – COIL OPTIONS X - Standard MODEL 1 - Phenolic coated HEAT FILTER OPTIONS NUMBER evaporator* PUMP X - 1-Inch Fiberglass Q-TEC™ 2 - Phenolic coated (Standard) REVISION 0Z - 0KW condenser F - 2-Inch Fiberglass CAPACITY | 05 - 5KW 3 - Phenolic coated... -
Page 5: Table 2 Electrical Specifications
TABLE 2 ELECTRICAL SPECIFICATIONS Single Circuit Dual Circuit Minimum Maximum Rated Field Maximum Field Circuit External Fuse Field Power Ground MODEL Volts & Minimum Power Ampacity or Ckt. Breaker Wire Size Wire Size External Power Ground... -
Page 6: Figure 1 Unit Dimensions
Manual 2100-601B 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 The blade of the appliance cart should be slid under the wheels of the unit. The strap of the appliance cart FROM SKID should be placed around the unit and strapped tightly. WARNING Help will be required to tip the unit 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 2100-601B 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 charge and an adequate duct system than a straight air unit for a total height above the floor of 10'-7/8". -
Page 11: Fresh Air Intake
OPTIONAL REAR DRAIN KITS position other than minimum or maximum position. Optional Rear Drain Kit, Bard Model QCDS48A, This fresh air assembly is located in the rear of the unit is also available for these products. The optional... -
Page 12: Figure 9 Optional Side Drain
FIGURE 9 FIGURE 10 OPTIONAL SIDE DRAIN (SIDE VIEW) STANDARD REAR DRAIN INSTALLATION 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 2100-601B 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 2100-601B 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 ENLARGED VIEW OF MOUNTING BRACKET SHOWING SLEEVE TO CABINET ATTACHMENT SIDE TRIM MOUNTING BRACKET (2 PCS.) QWS Series WALL Wall Sleeve SLEEVE SIDE TRIM (2 PCS.) #8 SCREW PROVIDED (LIGHT COLOR) CABINET MOUNTING SIDE PANEL BRACKET #10 HEX... -
Page 18: Installation Instructions
INSTALLATION INSTRUCTIONS MOUNTING THE UNIT alignment to the mounting brackets. This unit must be level from side to side. If adjustments When installing a Q-TEC unit near an interior wall on are necessary, shim up under the rollers with the left side, a minimum of 8 inches is required; 12 sheets of steel or any substance that is not inches is preferred. -
Page 19: Wiring - Main Power
WIRING – MAIN POWER WIRING – LOW VOLTAGE WIRING Refer to the unit rating plate and/or Table 2 for wire 230/208V, 1 PHASE AND 3 PHASE EQUIPMENT DUAL PRIMARY VOLTAGE TRANSFORMERS. sizing information and maximum fuse or “HACR Type” circuit breaker size. Each unit is marked with All Equipment leaves the factory wired on 240V tap. -
Page 20: Low Voltage Connections
The Climate Control Option B & C are an electronic, LOW VOLTAGE CONNECTIONS programmable thermostat and (CO controller on These units use a grounded 24 volt AC low voltage circuit. C Model only) with BACnet MS/TP or Ethernet connections. The “R” terminal is the hot terminal and the “C” The thermostat can be set in the heat, cool or automatic terminal is grounded. -
Page 21: Figure 16 Thermostat Plug Terminals
TABLE 4 WALL THERMOSTATS & CONTROLS Thermostat Predominant Features Carbon Dioxide Sensor with LCD for 8403-067 Sensor Readings 3 stage Cool; 3 stage Heat 8403-060 Programmable/Non-Programmable Electronic (1120-445) HP or Conventional Auto or Manual changeover 3 stage Cool; 3 stage Heat Programmable/Non-Programmable Electronic HP or Conventional CSB9E-THO... -
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 CS9BE-THO Low Voltage Bard Part #8403-060 CS9BE-THOC Terminal Block Plug #2 Orange Orange Red/Yellow W1/E W1/E Brown/White Yellow Blue Brown Red/White Black/White MIS-2687 A Factory installed jumper. -
Page 23: Figure 17B T-Stat Wiring Diagram "X" Opt. W/Demand
Yellow Blue Brown Red/White Black/White Thermostat Bard Part #8403-060 Low Voltage Terminal Block Factory installed jumper. Mount relay in low voltage terminal block compartment. Relay is field installed and required if demand ventilation control does not supply blower "G" signal when ventilation MIS-2688 B signal "O1"... -
Page 24: 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 2100-601B Page 24 of 42... -
Page 25: Figure 19 T-Stat Wiring Diagram "H" Option
FIGURE 19 UNIT MOUNTED THERMOSTAT WIRING DIAGRAM “H” THERMOSTAT OPTION Red/White CO2 Controller Part #8403-067 24 VAC Black/White Relay Analog 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... -
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 2100-601B Page 26 of 42... -
Page 27: 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 10. Never trap liquid R-410A in manifold sets, gauge (see criteria above), and charging to the nameplate lines or cylinders. -
Page 28: Description Of Standard Equipment
START UP DESCRIPTION OF STANDARD PHASE MONITOR EQUIPMENT All units with three phase scroll compressors are equipped with a 3 phase line monitor to prevent Solid State Electronic Heat Pump Control compressor damage due to phase reversal. Provides efficient 30-minute defrost cycle. A thermistor sensor and speed up terminal for service along with The phase monitor in this unit is equipped with two a 10-minute defrost override are standard on the... -
Page 29: Service Hints
SERVICE HINTS g. Remove screws that attach the duct work to the unit flanges. 1. Caution user to maintain clean air filters at all This unit is equipped with four rollers times. Also, not to needlessly close off supply mounted to the base. For ease of pulling unit air registers. -
Page 30: Vent Options
VENT OPTIONS Q-TEC ENERGY RECOVERY VENTILATOR (Option) BAROMETRIC FRESH AIR DAMPER Before starting, make sure that the power has been (Standard) turned off. The return air grille panel must be removed. Before starting, make sure the power has been turned The energy recovery ventilator (QERV) can be seen off. -
Page 31: Figure 21 Fresh Air Damper Removal
FIGURE 21 FRESH AIR DAMPER REMOVAL MOUNTING SCREW Manual 2100-601B 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 2100-601B Page 32 of 42... -
Page 33: Figure 23 Co 2 Controller
High / Low Pressure control provides protection for SEQUENCE OF OPERATION 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, starting the compressor mode, the compressor will be stopped. -
Page 34: Pressure Service Ports
PRESSURE SERVICE PORTS As soon as the defrost cycle kicks in remove the shorting instrument from the SPEEDUP terminals. Otherwise the High and low pressure service ports are installed on all units timing will remain accelerated and run through the 1-minute so that the system operating pressures can be observed. -
Page 35: Figure 24 Defrost Control Board
FIGURE 24 DEFROST CONTROL BOARD TIME (SEC) LOW PRESSURE BYPASS TIMER SWITCH 120* (FACTORY SETTING 120 SECONDS) ACCUMULATED RUN TIME SELECTOR (FACTORY SETTING 30 MIN.) MIS-2684 A Manual 2100-601B Page 35 of 42... -
Page 36: Troubleshooting
TROUBLESHOOTING NOTE: If there was no power to 24 volt transformer, SOLID STATE HEAT PUMP CONTROL the compressor and outdoor fan motor will TROUBLESHOOTING PROCEDURE not start for 5 minutes. This is because of 1. NOTE: A thorough understanding of the defrost the compressor short cycle protection. -
Page 37: Checking Temperature Sensor
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 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 39: Figure 25 Control Disassembly
TROUBLESHOOTING ECM ™ MOTORS CONT’D. 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 8b. -
Page 40: Figure 28 Fan Blade Setting
R-410A FAN BLADE SETTING DIMENSIONS Any service work requiring removal or adjustment REFRIGERANT CHARGE in the fan and/or motor area will require that the dimensions in Table 7 be checked and blade adjusted in This unit was charged at the factory with the quantity of or out of the motor shaft accordingly. -
Page 41: Pressure Charts
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° TEMP. 75 DB Low Side 62 WB High Side 80 DB Low Side Q24H2 67 WB High Side 85 DB... -
Page 42: Table 10 Heating Pressure
TABLE 10 HEATING PRESSURE (ALL TEMPERATURES IN DEGREES F) RETURN AIR TEMPERATURE ENTERING OUTDOOR COIL MODEL PRESSURE TEMP. Low Side Q24H2 High Side Low Side Q30H2 High Side Low Side Q36H2 High Side Low Side Q42H2 High Side Low Side Q48H2 High Side Low Side...