Carrier 38HDR018-060, 38HDF018-036 Pressure vs. Temperature Chart Puron Refrigerant R-410A

Page 13

Table 4 — Pressure vs. Temperature Chart — Puron® Refrigerant (R-410A)

PRESSURE

TEMPERATURE

PRESSURE

TEMPERATURE

PRESSURE

TEMPERATURE

PRESSURE

TEMPERATURE

PRESSURE

TEMPERATURE

PRESSURE

TEMPERATURE

PSIG

°F

PSIG

°F

PSIG

°F

PSIG

°F

PSIG

°F

PSIG

°F

12

–37.7

114

37.8

216

74.3

318

100.2

420

120.7

522

137.6

14

–34.7

116

38.7

218

74.9

320

100.7

422

121.0

524

137.9

16

–32.0

118

39.5

220

75.5

322

101.1

424

121.4

526

138.3

18

–29.4

120

40.5

222

76.1

324

101.6

426

121.7

528

138.6

20

–26.9

122

41.3

224

76.7

326

102.0

428

122.1

530

138.9

22

–24.5

124

42.2

226

77.2

328

102.4

430

122.5

532

139.2

24

–22.2

126

43.0

228

77.8

330

102.9

432

122.8

534

139.5

26

–20.0

128

43.8

230

78.4

332

103.3

434

123.2

536

139.8

28

–17.9

130

44.7

232

78.9

334

103.7

436

123.5

538

140.1

30

–15.8

132

45.5

234

79.5

336

104.2

438

123.9

540

140.4

32

–13.8

134

46.3

236

80.0

338

104.6

440

124.2

544

141.0

34

–11.9

136

47.1

238

80.6

340

105.1

442

124.6

548

141.6

36

–10.1

138

47.9

240

81.1

342

105.4

444

124.9

552

142.1

38

–8.3

140

48.7

242

81.6

344

105.8

446

125.3

556

142.7

40

–6.5

142

49.5

244

82.2

346

106.3

448

125.6

560

143.3

42

–4.5

144

50.3

246

82.7

348

106.6

450

126.0

564

143.9

44

–3.2

146

51.1

248

83.3

350

107.1

452

126.3

568

144.5

46

–1.6

148

51.8

250

83.8

352

107.5

454

126.6

572

145.0

48

0.0

150

52.5

252

84.3

354

107.9

456

127.0

576

145.6

50

1.5

152

53.3

254

84.8

356

108.3

458

127.3

580

146.2

52

3.0

154

54.0

256

85.4

358

108.8

460

127.7

584

146.7

54

4.5

156

54.8

258

85.9

360

109.2

462

128.0

588

147.3

56

5.9

158

55.5

260

86.4

362

109.6

464

128.3

592

147.9

58

7.3

160

56.2

262

86.9

364

110.0

466

128.7

596

148.4

60

8.6

162

57.0

264

87.4

366

110.4

468

129.0

600

149.0

62

10.0

164

57.7

266

87.9

368

110.8

470

129.3

604

149.5

64

11.3

166

58.4

268

88.4

370

111.2

472

129.7

608

150.1

66

12.6

168

59.0

270

88.9

372

111.6

474

130.0

612

150.6

68

13.8

170

59.8

272

89.4

374

112.0

476

130.3

616

151.2

70

15.1

172

60.5

274

89.9

376

112.4

478

130.7

620

151.7

72

16.3

174

61.1

276

90.4

378

112.6

480

131.0

624

152.3

74

17.5

176

61.8

278

90.9

380

113.1

482

131.3

628

152.8

76

18.7

178

62.5

280

91.4

382

113.5

484

131.6

632

153.4

78

19.8

180

63.1

282

91.9

384

113.9

486

132.0

636

153.9

80

21.0

182

63.8

284

92.4

386

114.3

488

132.3

640

154.5

82

22.1

184

64.5

286

92.8

388

114.7

490

132.6

644

155.0

84

23.2

186

65.1

288

93.3

390

115.0

492

132.9

648

155.5

86

24.3

188

65.8

290

93.8

392

115.5

494

133.3

652

156.1

88

25.4

190

66.4

292

94.3

394

115.8

496

133.6

656

156.6

90

26.4

192

67.0

294

94.8

396

116.2

498

133.9

660

157.1

92

27.4

194

67.7

296

95.2

398

116.6

500

134.0

664

157.7

94

28.5

196

68.3

298

95.7

400

117.0

502

134.5

668

158.2

96

29.5

198

68.9

300

96.2

402

117.3

504

134.8

672

158.7

98

30.5

200

69.5

302

96.6

404

117.7

506

135.2

676

159.2

100

31.2

202

70.1

304

97.1

406

118.1

508

135.5

680

159.8

102

32.2

204

70.7

306

97.5

408

118.5

510

135.8

684

160.3

104

33.2

206

71.4

308

98.0

410

118.8

512

136.1

688

160.8

106

34.1

208

72.0

310

98.4

412

119.2

514

136.4

692

161.3

108

35.1

210

72.6

312

98.9

414

119.6

516

136.7

696

161.8

110

35.5

212

73.2

314

99.3

416

119.9

518

137.0

 

 

112

36.9

214

73.8

316

99.7

418

120.3

520

137.3

 

 

Subcooling Method — For 38HDR units only, the sub- cooling method is used to check and adjust charge during the cooling season. Refer to Table 5 and the following procedure:

NOTE: For use with residential fan coils and the 40QA060 under ceiling unit only.

1.Operate unit a minimum of 15 minutes before checking charge.

2.Measure liquid line temperature near liquid line service valve, and measure the liquid pressure at the liquid line service valve. Use a digital thermometer for all tempera- ture measurements. DO NOT use mercury or dial-type thermometers.

3.Refer to Table 5. Find the temperature point at which the required subcooling temperature intersects the measured liquid line pressure.

4.If the measured liquid line temperature does not agree with the required liquid line temperature, ADD refriger- ant to lower the temperature, or REMOVE refrigerant to raise the temperature (allow a tolerance of ±3° F).

13

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Contents Installation, Start-Up Service Instructions 38HDF,HDR Unit Dimensions Lifting Unit with Sling Rig and Mount Unit38HDF018-036 Physical Data Unit 38HDR 38HDR018-060 Physical DataTypical Control Circuit Connections Make Electrical Connections38HDF Electrical Data 38HDR 38HDR Electrical DataCcht CAPGND HPSComp CLOEquip Condenser-Fan Mounting Positions Preliminary ChecksRefrigerant Charging Pressure Temperature Psig Pressure vs. Temperature Chart Puron Refrigerant R-410ALubrication Required Liquid Line Liquid Pressure Temperature FSubcooling Charging Table Troubleshooting the Cooling Cycle Copyright 2006 Carrier Corporation

38HDR018-060, 38HDF018-036 specifications

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