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26

18-GL07D1-4

2GN SPLIT INSTALLER’S GUIDE

PRESSURE/TEMPERATURE CONVERSION CHART FOR R-410A

PRESSURE

(PSIG)

TEMP

°F

PRESSURE

(PSIG)

TEMP

°F

PRESSURE

(PSIG)

TEMP

°F

PRESSURE

(PSIG)

TEMP

°F

PRESSURE

(PSIG)

TEMP

°F

60

8.5

180

63.5

300

96.3

420

120.6

540

140.0

62

9.9

182

64.2

302

96.8

422

120.9

542

140.3

64

11.2

184

64.8

304

97.2

424

121.3

544

140.6

66

12.5

186

65.5

306

97.7

426

121.6

546

140.9

68

13.8

188

66.1

308

98.1

428

122.0

548

141.2

70

15.1

190

66.8

310

98.6

430

122.3

550

141.4

72

16.3

192

67.4

312

99.0

432

122.7

552

141.7

74

17.5

194

68.0

314

99.5

434

123.0

554

142.0

76

18.7

196

68.7

316

99.9

436

123.4

556

142.3

78

19.8

198

69.3

318

100.4

438

123.7

558

142.6

80

21.0

200

69.9

320

100.8

440

124.1

560

142.9

82

22.1

202

70.5

322

101.2

442

124.4

562

143.2

84

23.2

204

71.1

324

101.7

444

124.8

564

143.5

86

24.3

206

71.7

326

102.1

446

125.1

566

143.7

88

25.4

208

72.3

328

102.5

448

125.4

568

144.0

90

26.5

210

72.9

330

103.0

450

125.8

570

144.3

92

27.5

212

73.5

332

103.4

452

126.1

572

144.6

94

28.6

214

74.1

334

103.8

454

126.5

574

144.9

96

29.6

216

74.7

336

104.2

456

126.8

576

145.1

98

30.6

218

75.3

338

104.7

458

127.1

578

145.4

100

31.6

220

75.8

340

105.1

460

127.5

580

145.7

102

32.6

222

76.4

342

105.5

462

127.8

582

146.0

104

33.5

224

77.0

344

105.9

464

128.1

584

146.2

106

34.5

226

77.5

346

106.3

466

128.5

586

146.5

108

35.4

228

78.1

348

106.7

468

128.8

588

146.8

110

36.4

230

78.7

350

107.2

470

129.1

590

147.1

112

37.3

232

79.2

352

107.6

472

129.4

592

147.3

114

38.2

234

79.8

354

108.0

474

129.8

594

147.6

116

39.1

236

80.3

356

108.4

476

130.1

596

147.9

118

40.0

238

80.9

358

108.8

478

130.4

598

148.2

120

40.9

240

81.4

360

109.2

480

130.7

600

148.4

122

41.7

242

81.9

362

109.6

482

131.1

602

148.7

124

42.6

244

82.5

364

110.0

484

131.4

604

149.0

126

43.4

246

83.0

366

110.4

486

131.7

606

149.2

128

44.3

248

83.5

368

110.8

488

132.0

608

149.5

130

45.1

250

84.1

370

111.2

490

132.3

132

45.9

252

84.6

372

111.6

492

132.7

134

46.7

254

85.1

374

112.0

494

133.0

136

47.5

256

85.6

376

112.3

496

133.3

138

48.3

258

86.1

378

112.7

498

133.6

140

49.1

260

86.6

380

113.1

500

133.9

142

49.9

262

87.1

382

113.5

502

134.2

144

50.7

264

87.7

384

113.9

504

134.5

146

51.5

266

88.2

386

114.3

506

134.9

148

52.2

268

88.7

388

114.7

508

135.2

150

53.0

270

89.2

390

115.0

510

135.5

152

53.7

272

89.6

392

115.4

512

135.8

154

54.5

274

90.1

394

115.8

514

136.1

156

55.2

276

90.6

396

116.2

516

136.4

158

55.9

278

91.1

398

116.5

518

136.7

160

56.6

280

91.6

400

116.9

520

137.0

162

57.4

282

92.1

402

117.3

522

137.3

164

58.1

284

92.6

404

117.6

524

137.6

166

58.8

286

93.0

406

118.0

526

137.9

168

59.5

288

93.5

408

118.4

528

138.2

170

60.2

290

94.0

410

118.7

530

138.5

172

60.8

292

94.5

412

119.1

532

138.8

174

61.5

294

94.9

414

119.5

534

139.1

176

62.2

296

95.4

416

119.8

536

139.4

178

62.9

298

95.8

418

120.2

538

139.7

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Содержание 2GN Series

Страница 1: ...18 GL07D1 4 IM2503SG4 Geothermal 2GN Series Indoor Split Heat Pump Installer s Guide R 410A Refrigerant 2 3 4 and 5 Tons Dual Capacity T2GN ...

Страница 2: ......

Страница 3: ...ms 11 Closed Loop Ground Source Systems 13 Hot Water Generator Connections 14 Electrical Data 16 Thermostat Wiring 16 Wiring Schematics 17 Microprocessor Control 18 Operation Logic Data 21 Indoor Split Service Parts List 21 DIP Switch Settings 22 Refrigeration 23 Pressure Temperature Conversion 26 Operating Parameters 27 Pressure Drop 28 Unit Startup 29 Troubleshooting 31 Preventive Maintenance 32...

Страница 4: ...6 270 122 291 132 11 05 12 NOTES All units have TXV expansion devices and 1 2 in 12 2 mm and 3 4 in 19 1 mm electrical knockouts Brass service valves are sweat type valves T 2 G N 049 N N R 1 0 C N 1 2 3 4 5 7 8 9 10 11 12 13 14 15 Model T Envirowise Compressor Type 2 Dual Capacity Product Category G Geothermal Product Type N Premium Split System Interior Grade Unit Capacity MBTU s 026 038 049 064...

Страница 5: ...inet MODELS HIGH WIDE DEEP WATER IN WATER OUT SERVICE VALVE HWG IN HWG OUT LOW VOLTAGE EXT PUMP LINE VOLTS LIQUID GAS A B C D E F G H J K L M 026 IN 19 50 22 50 26 50 1 93 6 93 8 44 11 55 13 43 16 43 5 87 13 66 15 66 CM 48 90 57 15 67 31 4 90 17 60 21 44 29 34 34 11 41 73 14 91 34 70 39 78 038 064 IN 21 25 25 50 31 50 2 21 7 21 9 21 12 14 15 83 18 83 5 87 13 66 15 66 CM 54 00 57 15 80 01 5 61 18 3...

Страница 6: ...oor matching adjustable TXV is factory installed on every coil Fixed orifice or cap tube systems should not be used TAMG air handlers have electronic expansion valves EEV Minimum of two 2 stage cooling blower required Variable speed ECM blower recommended GENERAL INSTALLATION INFORMATION WARNING Safety Considerations Before performing service or maintenance operations on a system turn off main pow...

Страница 7: ...ions for the blower coil unit for details on installing the air handling portion of the system All blower coil units air coils must be installed as specified by the manufacturer s installations instructions However the following recommendations should be considered to minimize noise and service problems An air filter must always be installed upstream of the air coil on the return air side of the a...

Страница 8: ...mit should be installed upstream of the coil to de energize the compressor whenever the furnace is operating Without this switch the 2GN Series Split will trip out on high pressure A dual fuel thermostat can remove theY1 andY2 calls when a W call is energized to allow gas furnace backup on a 2GN Series Split application Refer to thermostat wiring diagram for details Disconnect Thermostat Wire From...

Страница 9: ...the swivel connector prior to attempting any connection The rubber seals are shipped attached to the waterline To make the connection to a ground loop system mate the brass connector supplied in CK4L connector kit against the rubber gasket in the swivel connector and thread the female locking ring onto the pipe threads while maintaining the brass connector in the desired direction Tighten the conn...

Страница 10: ...s 0 50 oz per ft for 3 8 in and 1 0 oz per ft for 1 2 in tube 3 After charge is added adjustments can be made to get appropriate subcooling and superheat 4 Longer line sets will reduce capacity and efficiency of the system as well as adversely effect system reliability due to poor oil return 5 Line set sizes match split heat pump Reducing coupling may be required at indoor unit connection UNIT SIZ...

Страница 11: ...or pond etc Most local codes forbid the use of sanitary sewer for disposal Consult your local building and zoning departments to ensure compliance in your area Notes For open loop groundwater systems or sytems that do not contain an antifreeze solution set SW2 Switch 2 to the WELL position Refer to the DIP Switch Settings table Slow opening closing solenoid valves type VM are recommended to elimin...

Страница 12: ... t s s e L m p p 0 5 0 1 m p p 0 0 2 n a h t s s e L m p p 5 2 1 n a h t s s e L m p p 5 2 1 n a h t s s e L s e t a f l u S m p p 5 n a h t s s e L m p p 5 n a h t s s e L m p p 5 n a h t s s e L e n i r o l h C m p p 0 0 3 n a h t s s e L m p p 5 2 1 n a h t s s e L m p p 0 2 n a h t s s e L s e d i r o l h C m p p 0 5 0 1 m p p 0 5 0 1 m p p 0 5 n a h t s s e L e d i x o i D n o b r a C m p p 0...

Страница 13: ...ta in the specification catalog Usually 2 5 to 3 GPM of flow per ton of cooling capacity is recommended in earth loop applications Multiple Units on One Flow Center When two units are connected to one loop pumping system pump control is automatically achieved by connecting the SL terminals on connector P2 in both units with 2 wire thermostat wire These terminals are polarity dependant see Figure 8...

Страница 14: ...ertain conditions 2GN Series dual capacity units operate with very low refrigerant discharge temperatures producing little or no water heating capability This scenario occurs when the unit is operating with cold entering source water loop or well Allowing the hot water generator pump to operate during these conditions actually removes heat from the DHW circulating through the unit To overcome this...

Страница 15: ...ndicator plug 1 turn on the motor end of the pump until all air is purged from the pump then tighten the plug Use vent couplings to bleed air from the lines 6 Carefully inspect all plumbing for water leaks and correct as required 7 Before restoring electrical supply to the water heater adjust the temperature setting on the tank On tanks with both upper and lower elements the lower element should b...

Страница 16: ...chassis The fossil fuel furnace transformer supplies the 24 vac control voltage to the GN Series Split and the fossil fuel furnace MODEL RATED VOLTAGE VOLTAGE MIN MAX COMPRESSOR HWA PUMP FLA EXT LOOP FLA TOTAL UNIT FLA MIN CIRC AMP MAX FUSE HACR MCC RLA LRA LRA 026 208 230 60 1 187 253 18 2 11 6 58 3 21 0 0 4 5 4 17 0 19 9 30 038 208 230 60 1 187 253 23 8 15 2 83 0 30 0 0 4 5 4 20 6 24 4 40 049 20...

Страница 17: ...tant L lockout signal 2 This Switch allows the unit to down stage with the t stat when OFF and finish on second stage when ON Thermistor Light emitting diode Green Relay coil Capacitor w bleed resistor Switch Condensate overflow Switch High pressure Switch Low pressure Switch Hot Water On Off Polarized connector Factory Low voltage wiring Factory Line voltage wiring Field low voltage wiring Field ...

Страница 18: ...e service calls Diagnostics The TAMG Series control board allows all inputs and outputs to be displayed on the LEDs for fast and simple control board diagnosis Hot Water High Limit Domestic Hot Water Option This mode occurs when the hot water input temperature is at or above 130 F for 30 continuous seconds The DHW limit status LED on the unit illuminates and the hot water pump de energizes Hot wat...

Страница 19: ... has expired The ECM blower changes to high speed 15 seconds after the Y2 input 85 of high speed if in dehumidification mode Blower G only The blower starts and operates on low speed Lockout Conditions During lockout mode the appropriate unit and thermostat lockout LEDs will illuminate The compressor loop pump hot water pump and accessory outputs are de energized The blower will continue to run on...

Страница 20: ...at and determine the fault SW2 8 in the on position will send a constant signal to the fault indicator in the event of a system lockout condition The LED board on the front of the unit will display all lockouts The following table shows the codes that will be displayed when the System Monitor L is connected to the F terminal of an A TCON802 or 803 Comfort Control A TCON802 AND 803 THERMOSTATS THER...

Страница 21: ...D19 16P002D20 16P002D21 16P002D39 Sound Jacket 92P504A16 Power Harness 11P781 01 Solenoid Harness 11P782 02 Refrigeration Components Accumulator 36P509 02 36P509 01 Coax 62I504B01 62I542B01 62I543B01 TXV 33P609 01 33P609 03 33P609 05 33P609 06 Reversing Valve 33P506 04 33P503 05 33P526 04 Filter Dryer 36P500B01 36P500B02 Hot Water Generator Hot Water Generator 62P516 05 62P516 03 Hot Water Generat...

Страница 22: ...DIAGNOSTIC INPUTS VIEWED AT LEDS NORMAL DISPLAY VIEWED AT LEDS 7 Output Diagnostics Allows viewing the outputs from the control board such as the compressor reversing valve blower hot water pump and loop pump on the LED display DIAGNOSTIC OUTPUTS VIEWED AT LEDS NORMAL DISPLAY VIEWED AT LEDS 8 Thermostat Selection Configures the control for a pulsed lockout signal ComforTalk and FaultFlash thermost...

Страница 23: ...service valve stubs on the outside front of the split cabinet as shown in Figure 13 Nitrogen should be bled through the system at 2 to 3 PSI to prevent oxidation contamination Use a low silver phos copper braze alloy on all brazed connections 2GN Series split units are shipped with a factory charge and service valves are not to be opened until the line set has been leak tested purged and evacuated...

Страница 24: ...10 oz should be added to the recommended charge of 82 oz found in the Charge Amount with TAMG Air Handler column for a total charge of 92 oz After initial charge the system should be operated and the system subcooling and superheat verified to the Operating Parameters table If an air handler manufactured by others is used then refrigerant should be added to the 2GN Split factory charge pre charge ...

Страница 25: ... line is anticipated 2 Measure the liquid line pressure by attaching refrigerant gauges to the schrader connection on the liquid line service valve 3 Convert the pressure obtained in Step 2 to the saturation temperature by using the Pressure Temperature Conversion Chart for R 410A 4 SubtractthetemperatureinStep1fromthetemperature in Step 3 The difference will be the subcooling value for that unit ...

Страница 26: ... 466 128 5 586 146 5 108 35 4 228 78 1 348 106 7 468 128 8 588 146 8 110 36 4 230 78 7 350 107 2 470 129 1 590 147 1 112 37 3 232 79 2 352 107 6 472 129 4 592 147 3 114 38 2 234 79 8 354 108 0 474 129 8 594 147 6 116 39 1 236 80 3 356 108 4 476 130 1 596 147 9 118 40 0 238 80 9 358 108 8 478 130 4 598 148 2 120 40 9 240 81 4 360 109 2 480 130 7 600 148 4 122 41 7 242 81 9 362 109 6 482 131 1 602 1...

Страница 27: ...15 2 14 4 9 20 34 70 1 5 140 155 305 355 5 12 2 14 8 12 24 39 3 0 145 160 330 360 7 17 7 15 4 9 24 39 COOLING NO HOT WATER GENERATOR ENTERING WATER TEMP F WATER FLOW GPM TON 2GN026 THRU 2GN064 2GN026 THRU 2GN064 SUCTION PRESSURE PSIG DISCHARGE PRESSURE PSIG SUPER HEAT SUB COOLING WATER TEMP RISE F AIR TEMP DROP F DB 50 1 5 120 140 200 245 7 17 6 14 7 16 19 26 3 0 115 140 195 290 7 15 4 11 8 12 20 ...

Страница 28: ... 8 5 0 4 7 4 4 4 1 3 8 10 6 2 5 6 4 8 4 4 4 0 049 Full Load 6 1 2 1 1 1 0 1 0 0 9 9 2 5 2 4 2 2 2 1 1 9 12 3 9 3 7 3 3 3 2 3 0 15 5 7 5 4 4 9 4 7 4 4 049 Part Load 5 1 0 1 0 0 9 0 8 0 8 8 2 2 2 0 1 9 1 8 1 6 11 3 3 3 1 2 9 2 7 2 5 14 4 9 4 7 4 4 4 0 3 8 064 Full Load 8 1 6 1 7 1 4 1 3 1 2 12 3 6 3 4 3 2 3 0 2 8 16 5 7 5 4 5 0 4 7 4 3 20 8 9 8 6 1 9 7 5 6 9 064 Part Load 6 0 8 0 7 0 7 0 7 0 6 10 2 ...

Страница 29: ...e fan speed and entering water temperature 8 Decrease the cooling set point several degrees and verify high speed blower operation 9 Adjust the cooling setpoint above the room temperature and verify that the compressor and water valve or loop pumps deactivate 10 Initiate a control signal to place the unit in the heating mode Heating set point must be set above room temperature 11 First stage heati...

Страница 30: ...uction temperature here in cooling modes Refrigerant flow Cooling Cycle Analysis COOLING TXV EEV ACTIVE RIGHT TO LEFT ClgTXV EEV Measure liquid line temperature and pressure here in both heating and cooling modes COAX HEATING TXV ACTIVE LEFT TO RIGHT HtgTXV Measure suction temperature here at TXV bulb in heating modes Suct PSI ____ Suct sat temp ____ Volts ____ Amps ____ EWT ____ LWT ____ Suct tem...

Страница 31: ...talled and superheat and subcooling numbers calculated If superheat and subcooling are outside recommended ranges an adjustment to the refrigerant charge may be necessary Notes Refrigerant tests must be made with hot water generator turned OFF Verify that air and water flow rates are at proper levels before servicing the refrigerant circuit LED NORMAL DISPLAY MODE DIAGNOSTIC MODES CURRENT FAULT ST...

Страница 32: ...hould be inspected monthly under normal operating conditions and be replaced when necessary Units should never be operated without a filter Condensate Drain In areas where airborne bacteria produce a slime in the drain pan it may be necessary to treat chemically to minimize the problem The condensate drain can pick up lint and dirt especially with dirty filters Inspect twice a year to avoid the po...

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