Bard H42AA-B User Manual Download

Page: 22 / 36

Manual 2100-647D

Page

22 of 36

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

125

H12A

75/62

Low Side

High Side

125
296

129
316

132
336

134
359

137
381

139
405

141
429

144
454

146
481

148
508

150
537

80/67

Low Side

High Side

134
304

138
324

141
345

143
368

146
391

149
415

151
440

154
466

156
493

158
521

160
551

85/72

Low Side

High Side

139
315

143
335

146
357

148
381

151
405

154
430

156
455

159
482

161
510

164
539

167
570

H24A/L

75/62

Low Side

High Side

123
314

124
334

126
355

128
377

129
401

131
425

133
451

135
479

137
507

139
536

141
567

80/67

Low Side

High Side

132
322

133
343

135
364

137
387

138
411

140
436

142
463

144
491

146
520

149
550

151
582

85/72

Low Side

High Side

137
333

138
355

140
377

142
401

143
425

145
451

147
479

149
508

151
538

154
569

156
602

H36A/L

75/62

Low Side

High Side

117
323

120
346

122
370

124
394

127
419

129
446

131
473

134
500

136
528

137
558

138
587

80/67

Low Side

High Side

125
331

128
355

130
379

133
404

136
430

138
457

140
485

143
513

145
542

147
572

148
602

85/72

Low Side

High Side

129
343

132
367

135
392

138
418

141
445

143
473

145
502

148
531

150
561

152
592

153
623

H42A/L

75/62

Low Side

High Side

123
323

125
346

128
371

130
395

132
421

135
447

137
474

138
501

140
528

142
558

144
587

80/67

Low Side

High Side

132
331

134
355

137
380

139
405

141
432

144
458

146
486

148
514

150
542

152
572

154
602

85/72

Low Side

High Side

137
343

139
367

142
393

144
419

146
447

149
474

151
503

153
532

155
561

157
592

159
623

H48A/L

75/62

Low Side

High Side

120
330

122
353

125
377

127
402

130
428

132
454

134
482

136
510

137
540

139
570

141
601

80/67

Low Side

High Side

128
338

131
362

134
387

136
412

139
439

141
466

143
494

145
523

147
554

149
585

151
616

85/72

Low Side

High Side

132
350

136
375

139
401

141
426

144
454

146
482

148
511

150
541

152
573

154
605

156
638

H60A/L

75/62

Low Side

High Side

127
344

129
362

131
380

134
401

136
421

137
444

140
467

142
492

145
518

148
545

151
573

80/67

Low Side

High Side

136
353

138
371

140
390

143
411

145
432

147
455

150
479

152
505

155
531

158
559

161
588

85/72

Low Side

High Side

141
365

143
384

145
404

148
425

150
447

152
471

155
496

157
523

160
550

164
579

167
609

H72A/L

75/62

Low Side

High Side

117
332

119
353

121
376

122
402

124
427

126
454

128
483

130
512

132
542

134
574

136
607

80/67

Low Side

High Side

125
340

127
362

129
386

131
412

133
438

135
466

137
495

139
525

141
556

143
589

145
623

85/72

Low Side

High Side

129
352

131
375

134
400

136
426

138
453

140
482

142
512

144
543

146
575

148
610

150
645

Summary of Contents for H42AA-B

Page 1: ...H12AA A H24AA A H36AA A H42AA A H48AA A H60AA A H72AA A H24LA A H36LA A H42LA A H48LA A H60LA A H72LA A Bard Manufacturing Company Inc Bryan Ohio 43506 www bardhvac com Manual 2100 647D Supersedes 210...

Page 2: ...Blower Performance 25 Table 7 Max ESP of Operation Elec Heat Only 25 Table 8A H12 Electric Heat 26 Table 8B H24 72 Electric Heat 26 Table 9 Optional Accessories 27 Table 10 Vent and Control Options 2...

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: ...ed 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 methods of Air...

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: ...olts 7 Secure rain flashing to wall and caulk across entire length of top see Figures 3A D 8 For additional mounting rigidity the return air and supply air frames or collars can be drilled and screwed...

Page 7: ...63 CONDENSER AIR OUTLET HEATER FILTER ACCESS AIR VENTILATION CONDENSER AIRFLOW IS BLOW THRU 19 72 3 88 31 06 19 72 20 43 SHIPPING LOCATION ENTRANCE ELECTRICAL OPTIONAL TOP RAIN FLASHING DRAIN HOSE 22...

Page 8: ...d Entrance Air Panel Drain Heater Disconnect Entrance 4 Pitch Inlet Access Panel Economizer Rain Hood Low Voltage Electrical Air Intake Hood C Breaker High Voltage Economizer Controls H A D J C I 2 13...

Page 9: ...SUPPLIED FOAM AIR SEAL WALL WALL STRUCTURE MIS 3600 FLANGES AND UNDER TOP FLASHING AT TIME OF INSTALLATION SUPPLY AIR DUCT RETURN AIR NOTE IT IS RECOMMENDED THAT A BEAD OF SILICONE CAULKING BE PLACED...

Page 10: ...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 11: ...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 12: ...1 4 1 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...

Page 13: ...als 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 materi...

Page 14: ...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 15: ...e 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 the...

Page 16: ...eplace 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 mist el...

Page 17: ...nt composition during multiple 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 ch...

Page 18: ...d with a three phase line monitor to prevent compressor damage 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...

Page 19: ...wer resets the manual lockout Alarm Relay Output Alarm terminal is the output connection for applications where an alarm relay is employed This terminal is powered whenever the compressor is locked ou...

Page 20: ...nds DOB 144 second DOM 5 0 minute 300 seconds DOB 150 second DOM During routine operation of the unit with no power interruptions the compressor will operate on demand with no delay Typical Settings f...

Page 21: ...rge 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 information should only be...

Page 22: ...38 587 80 67 Low Side High Side 125 331 128 355 130 379 133 404 136 430 138 457 140 485 143 513 145 542 147 572 148 602 85 72 Low Side High Side 129 343 132 367 135 392 138 418 141 445 143 473 145 502...

Page 23: ...Ckt C Ckt A Ckt B Ckt C H12AA A0Z A03 A05 230 208 1 1 1 1 9 20 27 15 20 30 14 12 10 14 12 10 H24AA A00 A0Z A04 A05 A08 A10 230 208 1 1 1 1 1 1 21 25 30 46 56 30 30 30 50 60 10 10 10 8 6 10 10 10 10 1...

Page 24: ...8 6 3 10 10 10 8 60 26 60 30 6 10 10 10 H60LA B00 B0Z B03 B05 B09 B15 230 208 3 1 1 1 1 1 27 27 27 35 53 40 40 40 40 60 8 8 8 8 6 10 10 10 10 10 H72LA A00 A0Z A05 A10 A15 230 208 1 1 1 1 1 or 2 58 58...

Page 25: ...5 2010 1965 1950 1870 0 2 425 400 905 870 1265 1185 905 890 1820 1760 1615 1565 1820 1770 1600 1540 1970 1885 1400 1315 2115 2035 1960 1915 1885 1825 0 3 375 360 835 800 1180 1100 860 850 1735 1665 15...

Page 26: ...7 13650 14 4 10240 5 20 8 17540 18 1 13275 12 0 17065 10 4 12799 6 14 4 20500 12 5 15360 8 33 3 27300 28 8 20475 9 21 7 30600 18 7 23030 10 41 6 34130 36 2 25600 15 62 5 51250 54 0 38400 36 2 51200 3...

Page 27: ...A A05 X X EHW6TA B03 X EHW6TA B06 X EHW72A A10B X EHW72A A15B X EHW72A A20B X Circuit Breakers WMCB Pull Disconnects WMPD WMCB 03A X WMCB 05A X WMCB 08A X X WMCB 09A X X Left Hand Units H24LA A H36LA...

Page 28: ...A X BOP 2 Blank Off Plate X EWM1 E EWM1 T Economizer Bldg Equipment Enthalpy Economizer Bldg Equipment DB Temp X X EWM2 E EWM2 T Economizer Bldg Equipment Enthalpy Economizer Bldg Equipment DB Temp X...

Page 29: ...Closed 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 Sig...

Page 30: ...Contacts Not Used 4 11 Filter 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 Contac...

Page 31: ...22 21 6 Circuit Breaker 30 Low Press Control Hi Press Control Black Black Black Black White Blk Wht Black White Black White Black White Condenser Section Module Alarm Relay Indoor Delay Blower Relay F...

Page 32: ...hite Black White Black White Heat Plug SMOKE JUMPER G LOUT 20 104 Condenser Section 6 Pin Electric Module Compressor Relay Alarm Relay Delay Blower Relay Indoor Relay Filter Switch Filter Reset Button...

Page 33: ...1 12 13 4 8 18 6 33 20 104 14 109 2 110 16 111 11 112 3 113 9 117 7 118 21 116 5 121 19 136 Dual Can Capacitor LOUT 5 ECON LOUT DAMPER 128 103 B 128 3 Black White Light 113 124 Terminal Black Black B...

Page 34: ...116 Black White 121 6 131 134 128 128 124 132 Black White 132 Light 23 32 10 Black White Black Black Black White 6 5 4 3 2 1 Blk Wht Black White Black White Black White Heat Plug Condenser Section 6...

Page 35: ...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 36: ...n 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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