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Manual 2100-603

Page 

43 of 44

MODEL

RETURN

AIR 

TEMP.

PRESSURE

 

AIR TEMPERATURE ENTERING OUTDOOR COIL

75°

80°

85°

90°

95°

100°

105°

110°

115°

Q24H2

75 DB

62 WB

Low Side

High Side

122

369

121

378

121

391

121

407

122

426

122

449

123

474

125

503

128

535

80 DB

67 WB

Low Side

High Side

130

378

129

388

129

401

129

417

130

437

131

460

132

486

134

516

137

549

85 DB

72 WB

Low Side

High Side

135

391

134

402

134

415

134

432

135

452

136

476

137

503

139

534

142

568

Q30H2

75 DB

62 WB

Low Side

High Side

122

360

123

377

124

398

126

419

128

444

130

470

132

498

134

528

136

561

80 DB

67 WB

Low Side

High Side

131

369

132

387

133

408

135

430

137

455

139

482

141

511

143

542

145

575

85 DB

72 WB

Low Side

High Side

136

382

137

401

138

422

140

445

142

471

144

499

146

529

148

561

150

595

Q36H2

75 DB

62 WB

Low Side

High Side

122

367

124

390

128

413

130

437

133

460

135

485

137

508

137

533

138

558

80 DB

67 WB

Low Side

High Side

130

376

133

400

137

424

139

448

142

472

144

497

146

521

147

547

148

572

85 DB

72 WB

Low Side

High Side

135

389

138

414

142

439

144

464

147

489

149

514

151

539

152

566

153

592

Q42H2

75 DB

62 WB

Low Side

High Side

118

372

121

394

123

416

125

440

128

465

130

491

132

520

134

549

136

579

80 DB

67 WB

Low Side

High Side

126

382

129

404

132

427

134

451

137

477

139

504

141

533

143

563

145

594

85 DB

72 WB

Low Side

High Side

130

395

134

418

137

442

139

467

142

494

144

522

146

552

148

583

150

615

Q48H2

75 DB

62 WB

Low Side

High Side

119

372

122

394

124

417

127

442

130

467

132

493

134

522

135

550

136

580

80 DB

67 WB

Low Side

High Side

127

382

130

404

133

428

136

453

139

479

141

506

143

535

144

564

145

595

85 DB

72 WB

Low Side

High Side

131

395

135

418

138

443

141

469

144

496

146

524

148

554

149

584

150

616

Q60H2

75 DB

62 WB

Low Side

High Side

108

378

109

395

111

413

114

435

116

458

119

485

121

513

123

544

126

577

80 DB

67 WB

Low Side

High Side

115

388

117

405

119

424

122

446

124

470

127

497

129

526

132

558

135

592

85 DB

72 WB

Low Side

High Side

119

402

121

419

123

439

126

462

128

486

131

514

134

544

137

578

140

613

Low side pressure  ± 4 psig
High side pressure  ± 10 psig

Tables are based upon rated CFM (airflow) across the evaporator coil.  If there is any doubt as to correct operating charge being in the 

system, the charge should be removed, system evacuated and recharged to serial plate instructions.

 

75°F  outdoor temperature condenser fan motor is running on low speed.

When the system is operating in the dehumidification mode, the suction pressure will be reduced by 4 to 8 psig and the discharge 

pressure will be reduced by 19 to 22 psig.

TABLE  10 

COOLING PRESSURE 

(ALL TEMPERATURES IN DEGREES F)

Содержание Q-TEC Q24H2D Series

Страница 1: ...Company Inc Bryan Ohio 43506 Since 1914 Moving ahead just as planned Manual 2100 603 Supersedes NEW File Vol II Tab 14 Date 11 05 13 Models Q24H2D Q30H2D Q36H2D Q42H2D Q48H2D Q60H2D Q TEC SERIES PACK...

Страница 2: ...le 2 Electrical Specifications 5 Table 3 Operating Voltage Range 19 Table 4 Wall Thermostats 21 Table 5 Troubleshooting 38 Table 6 Temp vs Resistance of Temp Sensor 39 Table 7 Fan Blade Dimensions 42...

Страница 3: ...mmer Manual N Air Conditioning Low Pressure Low Velocity ACCA Manual D or Duct System Design Manual Q Winter and Summer Air Conditioning FOR MORE INFORMATION CONTACT THESE PUBLISHERS ACCA Air Conditio...

Страница 4: ...Ambient Control Outdoor Thermostat FILTER OPTIONS X 1 inch Fiberglass Standard F 2 inch Fiberglass P 2 inch Pleated Q 36 H 2 D A 10 X X X X X X CAPACITY 24 2 Ton 30 2 Ton 36 3 Ton 42 3 Ton 48 4 Ton 60...

Страница 5: ...0 30 14 10 10 10 14 10 10 10 Q48H2DA0Z A05 A10 A15 230 208 1 1 1 or 2 1 or 2 1 or 2 38 63 88 88 50 70 90 90 8 6 3 3 10 8 8 8 38 38 38 25 50 50 50 50 50 25 50 50 8 8 8 10 8 8 10 10 10 10 10 10 Q48H2DB0...

Страница 6: ...Manual 2100 603 Page 6 of 44 FIGURE 1 UNIT DIMENSIONS Q24H2D Q60H2D Q30H2D Q36H2D Q42H2D Q48H2D...

Страница 7: ...moved to provide a place to hold the unit The unit can be slid forward on the skid until the front wheels hang over the edge of the skid See Figure 3 B The unit can be tipped forward and slid down the...

Страница 8: ...parate equipment required to make up the entire air conditioning system should be carefully read before beginning the installation Note particularly Start Procedure and any tags and or labels attached...

Страница 9: ...Manual 2100 603 Page 9 of 44 FIGURE 6 DUCTED APPLICATION FIGURE 5 INSTALLATION WITH DUCT FREE PLENUM...

Страница 10: ...ounts on top of the unit and has both vertically and horizontally adjustable louvers on the front discharge grille For hot water coil option a QPBHWxx F for free blow or QPBHWxx D for ducted airflow i...

Страница 11: ...he drain is to be routed through an unconditioned space it must be protected from freezing The drain line must be able to be removed from the unit if it is necessary to remove the unit from the wall W...

Страница 12: ...RE 11 REAR DRAIN TOP VIEW WALL MAXIMUM 10 FOR REAR DRAIN COUPLINGS NOT SHOWN BUT RECOMMENDED FOR EASE OF REMOVABILITY FOR SERVICE SLEEVE DRAIN LINE WALL BRACKET UNIT FIGURE 10 STANDARD REAR DRAIN FIGU...

Страница 13: ...Manual 2100 603 Page 13 of 44 MIS 2469 DRAIN BOX WALL SLEEVE OVERFLOW TUBE CAULK AROUND TUBE FIGURE 12A...

Страница 14: ...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 4 NPT TEE SUPPLIED WITH DRAIN BOX KIT PLU...

Страница 15: ...Manual 2100 603 Page 15 of 44 REMOVE KNOCK OUT FOR INDOOR DRAIN HOSE CONNECTOR MIS 2471 FIGURE 12C If Used...

Страница 16: ...RAIN 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...

Страница 17: ...le FIGURE 13A UNIT MOUNTING BOTTOM TRIM PIECE BOTTOM TRIM EXTENSION MOUNTING BRACKET SIDE TRIM 2 PCS SIDE TRIM 2 PCS CABINET SIDE PANEL ENLARGED VIEW OF MOUNTING BRACKET SHOWING SLEEVE TO CABINET ATTA...

Страница 18: ...ck both sides of the unit as it is being rolled to keep it centered in the sleeve Also check the alignment to the mounting brackets This unit must be level from side to side If adjustments are necessa...

Страница 19: ...the installed KW of electric heat there may be two field power circuits required If this is the case the unit serial plate will so indicate All models are suitable only for connection with copper wire...

Страница 20: ...during dehumidification mode the call for cooling takes precedence over the dehumidification and the unit will cool until the thermostat is satisfied Once the call for cooling is satisfied the unit m...

Страница 21: ...may result in motor failure FIGURE 16 TABLE 4 WALL THERMOSTATS CONTROLS MIS 1285 Thermostat Predominant Features 8403 067 Carbon Dioxide Sensor with LCD for Sensor Readings 8403 060 1120 445 3 stage C...

Страница 22: ...te Black White Black White Black Red Yellow Plug 4 2 3 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 12 W1 E 4102 063 B 8403 060 SC With X Thermostat Option FACTORY INSTALLED JUMPER 1 Dehumidificati...

Страница 23: ...ellow Plug 4 2 3 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 12 Red White MIS 2690 C 6 5 And Demand Ventilation FACTORY INSTALLED JUMPER 1 With X Thermostat Option Dehumidification Wiring Diagram...

Страница 24: ...Diagram Thermostat Plug 2 Pink Red White Brown Blue Yellow Orange Brown White Purple White Black White Brown Blue Yellow Orange Brown White Purple White Red Red White Red White Red White 1 2 3 4 5 Plu...

Страница 25: ...og Out CO Controller Bard Part 8403 067 2 2 1 2 3 4 5 6 Red White 1 COM Yellow Orange Thermostat Blue Brown Red White Black White Red White 4102 066 B Plug 4 1 2 3 4 5 6 7 8 9 10 11 12 L C R W2 B W1 E...

Страница 26: ...ermostat Plug 2 Pink Red White Brown Blue Yellow Orange Brown White Purple White Black White Brown Blue Yellow Orange Brown White Purple White Red Red White Red White Red White Black White Black White...

Страница 27: ...e leaks and recharges R 410A refrigerant is close to being an azeotropic blend it behaves like a pure compound or single component refrigerant The remaining refrigerant charge in the system may be use...

Страница 28: ...age due to phase reversal The phase monitor in this unit is equipped with two LEDs If the Y signal is present at the phase monitor and phases are correct the green LED will light and the compressor co...

Страница 29: ...cabinet side panel g Remove screws that attach the duct work to the unit flanges This unit is equipped with four rollers mounted to the base For ease of pulling unit out from the wall you may want to...

Страница 30: ...gh the opening in the back of the unit The mist eliminator must be raised up and the bottom can be pulled toward the front of the unit and removed Q Tec ENERGY RECOVERY VENTILATOR Option Before starti...

Страница 31: ...Manual 2100 603 Page 31 of 44 FIGURE 22 FRESH AIR DAMPER REMOVAL MOUNTING SCREW...

Страница 32: ...Manual 2100 603 Page 32 of 44 FIGURE 23 QERV REMOVAL MOUNTING SCREWS FRONT FILL LOWER BLOWER ASSEMBLY POWER CONNECTOR POWER CONNECTORS...

Страница 33: ...g to hold the ball on the seat This will make the method of checking the ball freedom with a magnet difficult Refer to Figures 25 and 26 for the location of the check valve and drain back capillary Wh...

Страница 34: ...OR REHEAT COIL Figure 25 shows the refrigerant gas flow through the reheat coil during the dehumidification mode When the unit is in standard cooling Figure 26 or heating mode the reheat coil is inact...

Страница 35: ...perating pressures can be observed Pressure curves can be found later in the manual covering all models on both cooling and heating cycles It is imperative to match the correct pressure curve to the u...

Страница 36: ...erwise the timing will remain accelerated and run through the 1 minute minimum defrost length sequence in a matter of seconds and will automatically terminate the defrost sequence There is an initiate...

Страница 37: ...44 120 SW 1 SW 2 TIME SEC OFF OFF ON ON OFF ON OFF ON 30 60 180 LOW PRESSURE BYPASS TIMER SWITCH FACTORY SETTING 120 SECONDS ACCUMULATED RUN TIME SELECTOR FACTORY SETTING 30 MIN MIS 2684 A ON OFF FIGU...

Страница 38: ...eck for 24V between RV C and B C 1 Check control circuit wiring 2 Replace heat pump control Reversing valve solenoid coil defective Check for open or shorted coil Replace solenoid coil Unit will not g...

Страница 39: ...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 64 0 13820 102...

Страница 40: ...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 down Check f...

Страница 41: ...ion d Add a drip loop to the cables so that water cannot enter the motor by draining down the cables Refer to Figure 26 The installation is now complete Reapply the AC power to the HVAC equipment and...

Страница 42: ...of refrigerant listed on the serial plate AHRI capacity and efficiency ratings were determined by testing with this refrigerant charge quantity Reference Table 8 The following pressure tables show nom...

Страница 43: ...w Side High Side 126 382 129 404 132 427 134 451 137 477 139 504 141 533 143 563 145 594 85 DB 72 WB Low Side High Side 130 395 134 418 137 442 139 467 142 494 144 522 146 552 148 583 150 615 Q48H2 75...

Страница 44: ...Cooling Mode Unoccupied 1 X X X X X X X Cooling Mode Occupied 1 X X X X X 1st Stage Heating Occupied 2 X X X X X X X X X 1st Stage Heating Unoccupied 2 X X X X X X X 2nd Stage Heating Occupied 3 X X...

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