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Manual 2100-719 

Page 

21 of 25

TABLE  5A 

COOLING PRESSURE TABLE

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 charge weight.

NOTE:  Pressure table based on high speed condenser fan operation.  If condensing pressures appear elevated check condenser fan wiring.  See 
“Condenser Fan Operation”.

TABLE  5B

HEATING PRESSURES – (ALL TEMPERATURES °F)

COOLING

AIR TEMPERATURE ENTERING OUTDOOR COIL °F

MODEL

RETURN AIR 

TEMPERATURE

PRESSURE

75°F

80°F

85°F

90°F

95°F

100°F

105°F

110°F

115°F

120°F

C24H

75° DB

62° WB

LOW SIDE

HIGH SIDE

134
288

137
309

138
331

141
353

144
377

146
402

148
427

151
454

152
482

154
510

80° DB

67° WB

LOW SIDE

HIGH SIDE

143
295

146
317

148
339

151
362

154
387

156
412

158
438

161
466

163
494

165
523

85° DB

72° WB

LOW SIDE

HIGH SIDE

148
305

151
328

153
351

156
375

159
401

161
426

164
453

167
482

169
511

171
541

C30H

75° DB

62° WB

LOW SIDE

HIGH SIDE

129
303

131
328

133
353

135
378

136
405

137
431

138
457

139
485

141
513

142
541

80° DB

67° WB

LOW SIDE

HIGH SIDE

138
311

140
336

142
362

144
388

145
415

147
442

148
469

149
497

151
526

152
555

85° DB

72° WB

LOW SIDE

HIGH SIDE

143
322

145
348

147
375

149
402

150
430

152
457

153
485

154
514

156
544

157
574

C36H

75° DB

62° WB

LOW SIDE

HIGH SIDE

134
305

135
326

137
348

137
372

139
399

140
427

141
458

143
490

145
526

146
563

80° DB

67° WB

LOW SIDE

HIGH SIDE

143
313

144
334

146
357

147
382

149
409

150
438

151
470

153
503

155
539

156
577

85° DB

72° WB

LOW SIDE

HIGH SIDE

148
324

149
346

151
369

152
395

154
423

155
453

156
486

158
521

160
558

161
597

C42H

75° DB

62° WB

LOW SIDE

HIGH SIDE

133
302

133
321

133
341

134
365

136
391

137
418

138
449

141
481

143
516

146
553

80° DB

67° WB

LOW SIDE

HIGH SIDE

142
310

142
329

142
350

143
374

145
401

146
429

148
460

151
493

153
529

156
567

85° DB

72° WB

LOW SIDE

HIGH SIDE

147
321

147
341

147
362

148
387

150
415

151
444

153
476

156
510

158
548

161
587

C48H

75° DB

62° WB

LOW SIDE

HIGH SIDE

137
315

137
336

138
360

139
385

141
412

142
442

143
473

145
506

147
541

148
578

80° DB

67° WB

LOW SIDE

HIGH SIDE

147
323

147
345

148
369

149
395

151
423

152
453

153
485

155
519

157
555

158
593

85° DB

72° WB

LOW SIDE

HIGH SIDE

152
334

152
357

153
382

154
409

156
438

157
469

158
502

160
537

162
574

164
614

C60H

75° DB

62° WB

LOW SIDE

HIGH SIDE

135
290

136
313

137
337

137
362

139
387

140
412

143
438

146
464

149
490

152
518

80° DB

67° WB

LOW SIDE

HIGH SIDE

145
297

146
321

147
346

147
371

149
397

150
423

153
449

156
476

159
503

163
531

85° DB

72° WB

LOW SIDE

HIGH SIDE

150
307

151
332

152
358

152
384

154
411

155
438

158
465

161
493

165
521

169
550

HEATING

AIR TEMPERATURE ENTERING OUTDOOR COIL °F

MODEL

RETURN AIR 

TEMPERATURE

PRESSURE

0°F

5°F

10°F

15°F

20°F

25°F

30°F

35°F

40°F

45°F

50°F

55°F

60°F

65°F

C24H

70° DB

LOW SIDE

HIGH SIDE

25

233

34

242

42

251

50

260

58

269

66

278

74

287

81

296

88

305

95

314

102
322

109
331

115
339

121
348

C30H

70° DB

LOW SIDE

HIGH SIDE

34

261

39

267

45

274

51

281

57

289

64

297

71

307

78

317

86

327

94

338

102
350

110
363

119
376

128
390

C36H

70° DB

LOW SIDE

HIGH SIDE

36

244

42

251

48

259

54

267

61

275

68

283

75

291

83

299

90

307

99

316

107
324

116
333

125
341

135
350

C42H

70° DB

LOW SIDE

HIGH SIDE

37

270

42

274

47

279

52

285

59

293

65

301

73

311

81

322

89

334

98

347

108
361

118
377

128
394

140
411

C48H

70° DB

LOW SIDE

HIGH SIDE

24

240

34

251

43

261

52

271

60

280

68

289

75

297

83

305

89

312

96

318

102
325

108
330

113
336

118
341

C60H

70° DB

LOW SIDE

HIGH SIDE

31

230

40

245

48

259

56

271

64

283

72

293

80

302

88

310

95

317

102
323

109
327

116
331

123
333

130
334

Summary of Contents for C24H2-A

Page 1: ...ION INSTRUCTIONS C24H2 A C24H2 B C30H2 A C30H2 B C30H2 C C36H1 A C36H1 B C36H1 C C42H1 A C42H1 B C42H1 C Bard Manufacturing Company Inc Bryan Ohio 43506 www bardhvac com Manual 2100 719 Supersedes NEW...

Page 2: ...H 22 Table 7 Indoor Blower Performance 23 Getting Other Information and Publications 3 Wall Mount General Information Wall Mount Model Nomenclature 4 Shipping Damage 4 General 4 Duct Work 5 Filters 5...

Page 3: ...nter and Summer Air Conditioning Duct Design for Residential ACCA Manual D Winter and Summer Air Conditioning and Equipment Selection FOR MORE INFORMATION CONTACT THESE PUBLISHERS ACCA Air Conditionin...

Page 4: ...o methods of Air Conditioning Contractors of America ACCA The air duct should be installed in accordance with the Standards of the National Fire Protection Association for the Installation of Air Cond...

Page 5: ...is used Contact distributor or factory for ordering information If using a return air filter grille filters must be of sufficient size to allow a maximum velocity of 400 fpm NOTE If no return air duc...

Page 6: ...rs on the lag bolts 7 Secure rain flashing to wall and caulk across entire length of top See Figures 3A 3B 8 For additional mounting rigidity the return air and supply air frames or collars can be dri...

Page 7: ...s of Basic Unit for Architectural Installation Requirements Nominal MODEL WIDTH W DEPTH D HEIGHT H SUPPLY RETURN A B C B E F G I J K L M N O P Q R S T C24H2 C30H2 38 200 17 125 70 563 7 88 27 88 13 88...

Page 8: ...LEARANCE ON ALL RAIN FLASHING COMBUSTIBLE MATERIALS DUCT TOP FLASHING AT TIME OF INSTALLATION 1 4 MIN CLEARANCE FROM REQUIRED DIMENSIONS TO MAINTAIN OPENING ENTIRE LENGTH OF TOP MATERIALS NOTES OF CAU...

Page 9: ...URE 1 SUPPLY AIR IT IS RECOMMENDED THAT A BEAD OF OPENING Right Side View RAIN FLASHING SILICONE CAULKING BE PLACED BEHIND RECOMMENDED 1 CLEARANCE FROM THE SIDE MOUNTING FLANGES AND UNDER TOP FLASHING...

Page 10: ...This is required for the first 3 feet of ducting It is important to insure that the 1 4 inch minimum spacing is maintained at all points Failure to do this could result in overheating the combustible...

Page 11: ...R FACTORY SUPPLIED RAIN FLASHING SUPPLY AIR MIS 548 A SIDE VIEW I A C K E 1 000 B 1 000 SUPPLY DUCT OVER FRAME INTERIOR FINISHED WALL ALL AROUND DUCT FRAMING MATERIAL EXTERIOR FINISH WALL OPENING FOR...

Page 12: ...WALL OPENING W GRILLE SUPPLY DUCT MAYBE LOCATED IN AN ATTIC OR BELOW CEILING RAFTERS AS SHOWN CEILING RAIN RETURN AIR SLEEVE WALL SUPPLY AIR DUCT RAFTERS RAFTERS RETURN AIR OPENING W GRILLE RAIN FALSE...

Page 13: ...cess panel straight out This tab will now line up with the slot in the door When shut a padlock may be placed through the hole in the tab preventing entry See Start Up section for important informatio...

Page 14: ...iple 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...

Page 15: ...However reverse operation for over one hour may have a negative impact on the bearing due to oil pump out NOTE If compressor is allowed to run in reverse rotation for several minutes the compressor s...

Page 16: ...ump control will place the system in the defrost mode During the defrost mode the refrigerant cycle switches back to the cooling cycle the outdoor motor stops electric heaters are energized and hot ga...

Page 17: ...res the control will then monitor the low pressure switch input normally to make sure that the switch is closed during Y operation High Pressure Switch Operation The control has a built in lockout sys...

Page 18: ...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 go into defrost heati...

Page 19: ...36 29157 74 10762 112 4464 1 88139 37 28355 75 10501 113 4367 0 85371 38 27577 76 10247 114 4274 1 82699 39 26823 77 10000 115 4182 2 80121 40 26092 78 9760 116 4093 3 77632 41 25383 79 9526 117 4006...

Page 20: ...th this refrigerant charge quantity The following pressure tables show nominal pressures for the units Since many installation specific situations can affect the pressure readings this information sho...

Page 21: ...GH SIDE 133 302 133 321 133 341 134 365 136 391 137 418 138 449 141 481 143 516 146 553 80 DB 67 WB LOW SIDE HIGH SIDE 142 310 142 329 142 350 143 374 145 401 146 429 148 460 151 493 153 529 156 567 8...

Page 22: ...60 1 1 22 30 10 10 A04 1 42 50 8 10 AS8 1 48 50 8 10 AF8 1 or 2 63 70 6 8 22 42 30 45 10 8 10 10 C24H2 B0Z 230 208 60 3 1 15 20 12 12 B06 1 33 35 8 10 B09 1 42 45 8 10 C30H2 A0Z 230 208 60 1 1 23 30 1...

Page 23: ...hese units are equipped with a variable speed ECM indoor motor that automatically adjusts itself to maintain approximately the same rate of indoor airflow in both heating cooling dry wet coil conditio...

Page 24: ...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 down Check...

Page 25: ...is correct for your application Refer to the manufacturer s authorized replacement list USING THE WRONG CONTROL WILL RESULT IN IMPROPER OR NO BLOWER OPERATION Orient the control module so that the 3 w...

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