Bard Q-TEC Q43H4-A Installation Instructions Manual Download Page 1

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1 of 57

11EER Q-TEC

QH Series

Packaged Heat Pump

Models:

INSTALLATION INSTRUCTIONS

Q24H4-A
Q24H4-B
Q24H4-C
Q24H4DA
Q24H4DB
Q24H4DC

Q30H4-A
Q30H4-B
Q30H4-C
Q30H4DA
Q30H4DB
Q30H4DC

Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com

Manual: 2100-742B
Supersedes: 2100-742A
Date: 11-10-20

Q36H4-A
Q36H4-B
Q36H4-C
Q36H4DA
Q36H4DB
Q36H4DC

Q43H4-A
Q43H4-B
Q43H4-C
Q43H4DA
Q43H4DB
Q43H4DC

Q48H4-A
Q48H4-B
Q48H4-C
Q48H4DA
Q48H4DB
Q48H4DC

Summary of Contents for Q-TEC Q43H4-A

Page 1: ...4H4DB Q24H4DC Q30H4 A Q30H4 B Q30H4 C Q30H4DA Q30H4DB Q30H4DC Bard Manufacturing Company Inc Bryan Ohio 43506 www bardhvac com Manual 2100 742B Supersedes 2100 742A Date 11 10 20 Q36H4 A Q36H4 B Q36H4...

Page 2: ...Pressure Service Ports 30 Service 31 Solid State Heat Pump Control Troubleshooting Procedure 31 Checking Temperature Sensor Outside Unit Circuit 32 Troubleshooting ECM 142R Outdoor Fan Motors 33 Repla...

Page 3: ...umidification Relay Logic Board 56 Table 19 Electrical Specifications Q H4D Series 57 FIGURES Figure 1 Air Seal Under Q TEC Unit 5 Figure 2 Removal of Q TEC Unit from Skid 5 Figure 3 Fan Assembly Remo...

Page 4: ...WARNING Heavy item hazard Use more than one person to handle unit Check unit wheels to ensure that wheels are locked before removing from skid Failure to do so could result in unit damage or serious i...

Page 5: ...100 742B Page 5 of 57 FIGURE 1 Air Seal Under Q TEC Unit Hold Skid Down A Shipping Brackets B Front Wheels Over Edge C Front Wheels On Floor FIGURE 2 Removal of Q TEC Unit from Skid Air Seal MIS 1008...

Page 6: ...t work For use without duct work Plenum Box QPB36 is recommended These instructions explain the recommended method to install the air cooled self contained unit and the electrical wiring connections t...

Page 7: ...8 FT 5 IN 8 FT 6 IN MINIMUM REQUIRED INSTALLATION HEIGHT MIS 4174 FLOOR The minimum installation height for ducted applications is 8 4 1 2 This provides enough clearance to install the duct work see F...

Page 8: ...supply a Q4CX Cabinet Extension can be used to conceal the duct work above the unit to the ceiling This extends 20 above the unit for a total height above the floor of 10 7 8 The unit is equipped with...

Page 9: ...located in the rear of the unit and to gain access to make these adjustments remove the air filter service door All capacity efficiency and cost of operation information as required for Department of...

Page 10: ...after the panel has been removed To gain access to the mist eliminator the QERV must be removed 1 The front fill plate of the QERV must be removed There is one screw on either side of the plate Remove...

Page 11: ...pieces to the wall This unit is to be secured to the wall sleeve with mounting brackets provided The unit itself the supply duct and the free blow plenum are suitable of 0 clearance to combustible mat...

Page 12: ...tom Trim Extension Mounting Bracket Side Trim 2 PCS Side Trim 2 PCS Cabinet Side Panel Enlarged view of mounting bracket showing sleeve to cabinet attachment Mounting Bracket 8 Screw Provided Light Co...

Page 13: ...gth to trim up to a 10 2 ceiling NOTE If the exterior wall thickness is between 5 and 10 5 a side trim extension piece kit model QSTX42 is available Condensate Drain There are two drain connections on...

Page 14: ...cal growth to occur by minimizing the standing water and exposing it to warm temperatures See Figures 18A 18B 18C and 18D on pages 15 18 The drain box permanently mounts onto the wall sleeve and is th...

Page 15: ...A MIS 2469 SUPPLIED WITH DRAIN BOX KIT 3 4 PLASTIC PIPE NIPPLE HORIZONTAL TO FLOOR TIGHTEN THREADS SO TEE IS THREADS APPLY TEFLON TAPE TO REAR DRAIN CONNECTION IN Q Tec PRODUCT 1 2 SLIP X 1 2 SLIP X 3...

Page 16: ...Manual 2100 742B Page 16 of 57 MIS 2471 A REMOVE KNOCK OUT FOR INDOOR DRAIN HOSE CONNECTOR FIGURE 18C If used...

Page 17: ...OVE 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 S...

Page 18: ...pply flanges before unit installation to help with duct connections inside the structure Supply ducts must be properly sized for the design airflow requirement of the equipment Air Conditioning Contra...

Page 19: ...H VOLTAGE 3 4 NPT DRAIN OPT 3 375 7 000 2 000 2 000 OPTIONAL HIGH VOLTAGE FREEBLOW PLENUM OPTIONAL LOW VOLTAGE ELECTRICAL ENTRANCE ELECTRICAL ENTRANCE TOP VIEW SHOWN WITHOUT SUPPLY AIR OPENING TOP VIE...

Page 20: ...various insulation grades of wiring material All wiring must conform to NEC and all local codes FIGURE 20 High Voltage Connections The electrical data on the serial plate in the unit specifications a...

Page 21: ...airflow provides a warmer supply air temperature creating more comfortable heat The Y1 terminal is the 24VAC input for Balanced Climate compressor cooling operation The Y2 terminal is the 24VAC input...

Page 22: ...reeze Protection Thermostat An outdoor temperature switch and an evaporator freeze protection thermostat is supplied with all units that have a low ambient control The outdoor switch disables Balanced...

Page 23: ...Control BACnet compatible CS9B THOCA 3 stage Cool 3 stage Heat Programmable Non Programmable HP or Conventional Auto or Manual Changeover Humidity Sensor w dehumidification CO2 Sensor Motion Sensor w...

Page 24: ...CON only see vent instruction manuals 0 10 VDC modulating C02 control signal for modulating ventilation A 2 stage thermostat is recommended for Balanced Climate mode 8 and fan set to be programmed fan...

Page 25: ...nt operation add jumper if optional CO2 controller is not used Vent will run while blower is energized For ECON CRV V an additional wire change is required See install manual 4 Factory installed jumpe...

Page 26: ...arging cylinder tank as a liquid to avoid any fractionation and to ensure optimal system performance Refer to instructions for the cylinder that is being utilized for proper method of liquid extractio...

Page 27: ...ase monitor will not show phase reversal until the compressor is energized during a call for cooling or heat pump operation If phases are reversed the red fault LED will be lit and compressor operatio...

Page 28: ...ature sensor mounted near the bottom of the outdoor coil Once coil temperature reaches 30 F or below the coil temperature sensor sends a signal to the control logic of the heat pump control and the de...

Page 29: ...outdoor coil in this artificial test condition There is also a 5 minute compressor time delay function built into the defrost control board This is to protect the compressor from short cycling condit...

Page 30: ...ges to plug in to If the compressor will not start and there is no Y1 at the compressor control module first check to make sure that either the optional vent is plugged into the vent connection plug o...

Page 31: ...rmer is bad or the unit wiring is incorrect 10 Check for Compressor output signal Is there 24 volts AC between CC C Yes go to Step 12 No go to Step 13 11 No Y compressor input signal Check thermostat...

Page 32: ...6 0 144374 22 0 43554 60 0 15310 98 0 6098 15 0 139576 23 0 42295 61 0 14921 99 0 5961 14 0 134956 24 0 41077 62 0 14544 100 0 5827 13 0 130506 25 0 39898 63 0 14177 101 0 5697 12 0 126219 26 0 38757...

Page 33: ...a high head pressure tripping the high pressure switch or compressor overload check the following a Ensure cleanliness of condenser coil s and fan blade shroud b Confirm the fan blade is not bent or...

Page 34: ...r Fan Motors an outdoor thermistor sensor to determine the speed the fan should operate It also utilizes the B reversing valve input for heat pump mode to determine which speed should operate Replacin...

Page 35: ...ine if it s air noise cabinet duct or motor noise interview customer if necessary Air noise High static creating high blower speed Is airflow set properly Does removing filter cause blower to slow dow...

Page 36: ...motor plug just removed to the motor shell is 100K ohms Refer to Figure 25 Measure to unpainted motor end plate If any motor lead fails this test do not proceed to install the control module THE MOTOR...

Page 37: ...oad w 1st Bank of Elec Heat Heat Pump Full Load w 1st 2nd Bank of Elec Heat Emergency Heat Mode Thermostat 24 VAC Input Signals G G Y1 G Y1 Y2 D G B Y1 G B Y1 Y2 G Y1 Y2 B W1 W2 G Y1 Y2 B W2 W3 G W2 W...

Page 38: ...or fan 3 The fan shroud and motor assembly can be removed from the unit by four 4 screws and the coil top fill then the six 6 screws from the shroud sides Fan motor must be unplugged from motor contro...

Page 39: ...5 314 128 337 130 361 133 385 135 410 137 435 139 460 141 486 143 513 145 540 80 67 Low Side High Side 130 299 134 322 137 346 139 370 142 395 145 420 147 446 149 472 151 499 153 526 155 554 85 72 Low...

Page 40: ...7 133 473 134 500 136 527 137 554 80 67 Low Side High Side 125 313 128 336 131 359 133 383 136 408 138 433 140 459 142 485 144 512 145 540 147 569 85 72 Low Side High Side 130 324 133 347 135 372 138...

Page 41: ...10 10 Q24H4 B0Z B06 B09 230 208 3 1 1 1 16 34 43 20 35 45 12 8 8 12 10 10 Q24H4 C0Z C06 C09 460 3 1 1 1 12 21 25 15 25 25 14 12 10 14 12 10 Q30H4 A0Z A05 230 208 1 1 1 25 51 35 60 8 6 10 10 Q30H4 B0Z...

Page 42: ...aters are available in 480V units only Nominal KW At 240V At 208V At 480V At 460V KW 1 Ph Amps 3 Ph Amps BTUH KW 1 Ph Amps 3 Ph Amps BTUH KW 3 Ph Amps BTUH KW 3 Ph Amps BTUH 5 0 5 0 20 8 17 065 3 75 1...

Page 43: ...Manual 2100 742B Page 43 of 57 GRAPH 1 Q24H4 FAD Ventilation Delivery GRAPH 2 Q30H4 FAD Ventilation Delivery...

Page 44: ...Manual 2100 742B Page 44 of 57 GRAPH 4 Q43H4 FAD Ventilation Delivery GRAPH 3 Q36H4 FAD Ventilation Delivery...

Page 45: ...Manual 2100 742B Page 45 of 57 GRAPH 5 Q48H4 FAD Ventilation Delivery...

Page 46: ...er continues to operate or turns off based on the signal from the wall thermostat The result is separate humidity control at minimum operating cost Dehumidification Sequence of Operation Dehumidificat...

Page 47: ...opened manually using the magnetic EEV service tool Bard P N 2151 021 shown in Figure 30 To do this remove the EEV stator coil red color with retaining nut on top slide the magnetic tool over the shaf...

Page 48: ...ange replace the relay Stator Coil Disconnect the stator from the valve and the control and measure the resistance of the windings using an electrical tester The resistance of both windings should be...

Page 49: ...6 8 36 6 700 98 6 37 6 470 100 4 38 6 250 102 2 39 6 030 104 40 5 830 105 8 41 5 630 107 6 42 5 440 109 4 43 5 260 111 2 44 5 080 113 45 4 910 114 8 46 4 750 116 6 47 4 590 118 4 48 4 440 120 2 49 4 3...

Page 50: ...COIL OUTDOOR COIL CHECK VALVE EEV TEMP SENSOR PRESSURE SENSOR MIS 3959 MIS 4065 OUTDOOR COIL DEHUMIDIFICATION VALVE COMPRESSOR EEV CONTROL INDOOR COIL 4 WAY VALVE REHEAT COIL CHECK VALVE EEV TEMP SEN...

Page 51: ...PSIG3 303 265 345 295 392 327 75 65 5 60 RH Total Cooling Btuh 26 000 10 900 24 300 7 500 22 500 3 200 Sensible Btuh 17 300 4 500 16 400 1 800 15 700 1 000 S T 0 665 0 413 0 675 0 240 0 698 0 Latent B...

Page 52: ...IG3 314 274 358 304 406 336 75 65 5 60 RH Total Cooling Btuh 30 700 12 800 28 900 8 900 27 400 5 100 Sensible Btuh 19 300 2 600 18 500 500 18 000 3 500 S T 0 629 0 203 0 640 0 0 657 0 Latent Btuh 11 4...

Page 53: ...IG3 335 282 382 312 432 345 75 65 5 60 RH Total Cooling Btuh 38 100 15 300 33 600 12 000 32 100 7 500 Sensible Btuh 22 900 2 200 20 700 700 22 000 4 200 S T 0 601 0 144 0 616 0 0 685 0 Latent Btuh 15...

Page 54: ...G3 325 278 371 308 420 340 75 65 5 60 RH Total Cooling Btuh 43 500 18 000 41 300 12 600 38 800 6 700 Sensible Btuh 27 900 2 700 26 300 1 500 25 300 5 700 S T 0 641 0 150 0 637 0 0 652 0 Latent Btuh 15...

Page 55: ...IG3 345 293 391 322 441 353 75 65 5 60 RH Total Cooling Btuh 49 900 19 900 47 300 14 000 44 400 7 800 Sensible Btuh 32 000 2 500 30 600 1 800 29 300 6 200 S T 0 641 0 126 0 647 0 0 660 0 Latent Btuh 1...

Page 56: ...X X X X X X Y1 G B W1 W2 A D 2nd Heat Pump w Strips and Dehum Occupied X X X X X X X X X X X X Y1 G B W1 W2 D 2nd Heat Pump w Strips and Dehum Unoccupied X X X X X X X X X X D Dehum Unoccupied X X X X...

Page 57: ...e Minimum Circuit Ampacity Maximum External Fuse or Ckt Breaker Field Power Wire Size Ground Wire Size Ckt A Ckt B Ckt A Ckt B Ckt A Ckt B Ckt A Ckt B Q24H4DA0Z DA05 230 208 1 1 1 24 50 35 50 8 8 10 1...

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