Bard H24A4-A Installation Instructions Manual Download

Page: 19 / 28

Manual 2100-639A

Page

19 of 28

TABLE 3

Cooling Pressure

Air Temperature Entering Outdoor Coil °F

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”.

Model

Return Air Temp

(DB/WB)

Pressure

100

105

110

115

120

H24A/L

75/62

Low Side

High Side

119
340

121
361

122
383

124
407

127
432

129
459

131
488

133
518

135
550

137
583

80/67

Low Side

High Side

127
349

129
370

131
393

133
417

136
443

138
471

140
500

142
531

144
564

146
598

85/72

Low Side

High Side

131
361

134
383

136
407

138
432

141
459

143
487

145
518

147
550

149
584

151
619

H36A/L

75/62

Low Side

High Side

120
339

122
366

124
392

126
418

129
446

130
473

132
501

134
529

135
558

136
586

80/67

Low Side

High Side

128
348

130
375

133
402

135
429

138
457

139
485

141
514

143
543

144
572

145
601

85/72

Low Side

High Side

132
360

135
388

138
416

140
444

143
473

144
502

146
532

148
562

149
592

150
622

H42A/L

75/62

Low Side

High Side

123
320

124
342

126
367

128
391

130
416

132
443

134
469

136
496

137
526

139
554

80/67

Low Side

High Side

132
328

133
351

135
376

137
401

139
427

141
454

143
481

145
509

147
539

149
568

85/72

Low Side

High Side

137
339

138
363

140
389

142
415

144
442

146
470

148
498

150
527

152
558

154
588

H48A/L

75/62

Low Side

High Side

117
355

119
378

121
403

123
427

125
454

127
482

129
510

131
539

133
570

135
603

80/67

Low Side

High Side

125
364

127
388

129
413

132
438

134
466

136
494

138
523

140
553

142
585

144
618

85/72

Low Side

High Side

129
377

131
402

134
427

137
453

139
482

141
511

143
541

145
572

147
605

149
640

H60A/L

75/62

Low Side

High Side

122
346

124
371

126
396

128
421

130
447

131
473

133
499

135
526

137
553

138
580

80/67

Low Side

High Side

131
355

133
380

135
406

137
432

139
458

140
485

142
512

144
539

146
567

148
595

85/72

Low Side

High Side

136
367

138
393

140
420

142
447

144
474

145
502

147
530

149
558

151
587

153
616

Summary of Contents for H24A4-A

Page 1: ...CONDITIONER Models INSTALLATION INSTRUCTIONS H24A4 A H36A4 A H42A4 A H48A4 A H60A4 A H24L4 A H36L4 A H42L4 A H48L4 A H60L4 A Bard Manufacturing Company Inc Bryan Ohio 43506 www bardhvac com Manual 210...

Page 2: ...ional Accessories 22 Table 10 Vent and Control Options 22 Table 11 Unit Low Voltage Terminal Connection Chart MV Series Controller 23 Table 12 Unit Low Voltage Terminal Connection Chart MC Series Cont...

Page 3: ...ummer 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 Conditioning Contract...

Page 4: ...hould be consulted before the installation is made See page 3 for information on codes and standards Size of unit for a proposed installation should be based on heat loss calculation made according to...

Page 5: ...be insulated and all joints taped or sealed to prevent air or moisture entering the wall cavity Some installations may not require any return air duct A metallic return air grille is required with in...

Page 6: ...ng to wall and caulk across entire length of top see Figure 2 8 For additional mounting rigidity the return air and supply air frames or collars can be drilled and screwed or welded to the structural...

Page 7: ...ting Side Wall Location Shipping Flashing Entrances Electrical Optional Entrance Electrical High Voltage Entrance Electrical Low Voltage Top Rain models non Econ vent door for Standard flush Lockable...

Page 8: ...F TOP TOP WALL OF CAULKING ALONG PANEL FOAM AIR SEAL WALL STRUCTURE OPENING TOP FLASHING AT TIME OF INSTALLATION THE SIDE MOUNTING FLANGES AND UNDER DUCT Wall Opening and Hole Location View Right Side...

Page 9: ...4 CLEARANCE ON ALL HEATER ACCESS TOP FLASHING AT TIME OF INSTALLATION THE SIDE MOUNTING FLANGES AND UNDER SILICONE CAULKING BE PLACED BEHIND IS ON OPPOSITE LEFT SIDE OPENING CONTROLS AND HEATER ACCESS...

Page 10: ...1 4 29 3 4 32 12 5 1 2 2 NOTES WALL STRUCTURE 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 S...

Page 11: ...ls This is required for the first 3 of ducting It is important to insure that the 1 4 minimum spacing is maintained at all points Failure to do this could result in overheating the combustible materia...

Page 12: ...TURN AIR SUPPLY AIR 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...

Page 13: ...ssure that there will be no nuisance tripping due to the momentary high starting current of the compressor motor The disconnect access door on this unit may be locked to prevent unauthorized access to...

Page 14: ...oor 3 Replace filter 4 Press Reset button 5 Verify filter light is off 6 Replace filter door 7 Turn on unit power For units equipped with economizer 1 Turn off unit power 2 Remove hood cover 3 Remove...

Page 15: ...eing an azeotropic blend it behaves like a pure compound or single component refrigerant The remaining refrigerant charge in the system may be used after leaks have occurred and then top off the charg...

Page 16: ...all models covered by this manual The compressor control module is an anti short cycle lockout timer with high and low pressure switch monitoring and alarm relay output Adjustable Delay on Make and De...

Page 17: ...ntacts Economizer Only 9 14 Occupied Signal Input Econ Emergency Open Open Blade 100 Economizer Only E 15 Econ Open Output 6V HOT 24V HOT after Blade Open 100 and delay Economizer Only 10 16 Alarm Rel...

Page 18: ...this refrigerant charge quantity The pressure table on the following page shows nominal pressures for the units Since many installation specific situations can affect the pressure readings this infor...

Page 19: ...3 132 501 134 529 135 558 136 586 80 67 Low Side High Side 128 348 130 375 133 402 135 429 138 457 139 485 141 514 143 543 144 572 145 601 85 72 Low Side High Side 132 360 135 388 138 416 140 444 143...

Page 20: ...10 50 50 60 90 125 8 8 6 4 2 10 10 10 8 6 58 58 26 52 60 60 30 60 6 6 10 6 10 10 10 10 H60A2 A00 A0Z A05 A10 A15 A20 230 208 1 1 1 1 1 or 2 1 or 2 42 42 60 86 112 60 60 60 90 125 8 8 6 3 2 10 10 10 8...

Page 21: ...s shown are for units equipped with standard 1 throwaway filter or 1 washable filter Derate ESP by 15 for 2 pleated filters Model H24A L H36A L H42A L H48A L H60A L Outlet FRONT FRONT TOP FRONT FRONT...

Page 22: ...02 A10L X EHWA03 A05L X EHWA03 A10L X EHWA03 A15L X EHWA05 A05L X X X EHWA05 A10L X X X EHWA05 A15L X X X Circuit Breakers WMCB Pull Disconnects WMPD WMCB 03A X WMCB 05A X WMCB 08A X X WMCB 09A X TABL...

Page 23: ...losed Dry Contacts MV Signals Blade Switch Fail Alarm 8 on Relay Board 8 13 Blade Switch Delay Relay Normally Closed Dry Contacts MV Signals Blade Switch Fail Alarm 9 on Relay Board 9 14 Occupied Sign...

Page 24: ...sed Dry Contacts Not Used on MC 8 13 Blade Switch Delay Relay Normally Closed Dry Contacts Not Used on MC 9 14 Occupied Signal Input Econ Emergency Open Open Blade 100 Unit Receives Signal from MC E o...

Page 25: ...ter Switch Normally Closed Dry Contacts Not Used 5 12 Blade Switch Delay Relay Normally Closed Dry Contacts Not Used 8 13 Blade Switch Delay Relay Normally Closed Dry Contacts Not Used 9 14 Occupied S...

Page 26: ...1 C R COM 208V 240V 2 500 NC NO COM T1 HPC R Y CC ALR 30 C Module Black White Low Press Control Hi Press Control Hi Voltage Field Connections Green Brown White Yellow White Pink Purple Blue White Yell...

Page 27: ...2 NC 3 2 1 NO 12 PIN PLUG COM DAMPER MOTOR DAMPER BLADE IN RED BLACK BLACK IS SHOWN WITH THE CONTACT POSITION IAQ AUX1 O Y2 I 8 S BUS ACT 24V ACT RED YELLOW IAQ R MAT PLUG PLUG PLUG PLUG BROWN WHITE G...

Page 28: ...Vent Plug Pin 2 on Vent Plug Pin 5 on Vent Plug Pin 7 on Vent Plug Pin 10 on Vent Plug Time Delay Relay T1 T2 Y HPC Lo Press Sw LPC LPC Alarm Relay ALR CC Comp Control Module R MV Controller C 4 5 W...

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