Bard CH Series Installation Instructions Manual Download

Page: 40 / 50

Manual 2100-769A

Page

40 of 50

TABLE 11A

Cooling Pressures – Full Load

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 and 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

on page 30.

* Operating at these conditions would be outside the compressor operating envelope and is not recommended.

Model

Return Air

Temp

(DB/WB)

Pressure

100

105

110

115

120

125

C36HY

75/62

Suction Pressure

133

134

135

136

137

138

139

140

142

143

144

Head Pressure

300

322

346

371

397

423

451

480

509

540

572

80/67

Suction Pressure

142

143

144

145

147

148

149

150

152

153

154

Head Pressure

308

331

355

380

407

434

463

492

522

554

587

85/72

Suction Pressure

147

148

149

151

152

153

154

155

157

158

160

Head Pressure

318

342

367

394

421

449

479

509

541

573

607

C42HY

75/62

Suction Pressure

134

135

136

137

138

139

140

142

143

Head Pressure

314

333

355

377

402

427

454

483

513

545

578

80/67

Suction Pressure

143

144

145

146

147

149

150

152

153

Head Pressure

322

342

364

387

412

438

466

496

527

559

593

85/72

Suction Pressure

148

149

150

151

153

154

155

157

159

Head Pressure

333

354

376

400

426

453

482

513

545

579

614

C48HY

75/62

Suction Pressure

133

135

136

137

138

139

140

141

143

144

145

Head Pressure

305

326

348

372

397

423

451

479

509

541

573

80/67

Suction Pressure

143

144

145

146

147

149

150

151

152

154

155

Head Pressure

312

334

357

381

407

434

462

492

522

554

588

85/72

Suction Pressure

148

149

150

151

153

154

155

156

158

159

161

Head Pressure

323

346

370

395

421

449

478

509

541

574

608

C60HY

75/62

Suction Pressure

127

128

129

131

132

133

134

135

136

137

---*

Head Pressure

305

326

348

371

395

420

447

474

503

532

80/67

Suction Pressure

136

137

138

140

141

142

143

145

146

147

Head Pressure

313

335

357

381

405

431

458

486

515

546

85/72

Suction Pressure

140

142

143

145

146

147

148

150

151

152

Head Pressure

324

346

369

394

419

446

474

503

533

565

Summary of Contents for CH Series

Page 1: ...mp Models INSTALLATION INSTRUCTIONS C36HY A C36HY B C36HY C C42HY A C42HY B C42HY C Bard Manufacturing Company Inc Bryan Ohio 43506 www bardhvac com Manual 2100 769A Supersedes 2100 769 Date 6 21 23 C...

Page 2: ...ation 32 High Pressure Switch Operation 33 Vent Connection Plug 33 Pressure Service Ports 33 Service 34 Solid State Heat Pump Control Troubleshooting Procedure 34 Checking Temperature Sensor Outside U...

Page 3: ...Temperature vs Resistance 35 Table 10 Fan Blade Dimensions 39 Table 11A Cooling Pressures Full Load 40 Table 11B Cooling Pressures Part Load 41 Table 12A Heating Pressures Full Load 42 Table 12B Heati...

Page 4: ...ituation which if not avoided will result in death or serious injury The signal word DANGER is to be limited to the most extreme situations DANGER signs should not be used for property damage hazards...

Page 5: ...to avoid accidental contact with sharp edges Failure to do so can result in personal injury CAUTION The following symbols are displayed on units This symbol indicates that the Operation Manual should...

Page 6: ...he Standards of the National Fire Protection Association for the Installation of Air Conditioning and Ventilating Systems of Other Than Residence Type NFPA No 90A and Residence Type Warm Air Heating a...

Page 7: ...xtreme damage hazards o involved ed could result in d for property his level is also d could result in lert symbol may be erty damage only ted to personal nal word As an ty alert symbol may mmediate h...

Page 8: ...ns sont disponibles telles que le manuel d utilisation ou le manuel d installation Risque de choc lectrique Ces t ches doivent tre r alis es par une personne parfaitement qualifi e et form e Le non re...

Page 9: ...ciation for the Installation of Air Conditioning and Ventilating Systems of Other Than Residence Type NFPA No 90A et aux Syst mes de chauffage et de climatisation d air chaud de type r sidence NFPA No...

Page 10: ...ntact these publishers ACCA Air Conditioning Contractors of America 1712 New Hampshire Ave N W Washington DC 20009 Telephone 202 483 9370 Fax 202 234 4721 ANSI American National Standards Institute 11...

Page 11: ...ergy Recovery Ventilator V Commercial Room Ventilator Modulating Y Full Flow Economizer Temperature Z Full Flow Economizer Enthalpy ELECTRIC HEAT 00 0Kw with Lug Connection 0Z 0Kw with Circuit Breaker...

Page 12: ...require a return air duct A metallic return air grille is required with installations not requiring a return air duct The spacing between louvers on the grille shall not be larger than 5 8 Any grille...

Page 13: ...Install Screws and Bend Tabs Up FIGURE 3 Removing Second Filter Upper slots for 1 filters Lower slots for 2 filters 3 Reverse the order for new filter installation NOTE When installing new filters mak...

Page 14: ...is an adjustable slide on the side of the fresh air intake that can be adjusted to limit how far the damper opens so that the amount of fresh air that enters the structure is regulated Graphs found o...

Page 15: ...er section of the unit and outdoor ambient temperature air must be able to enter from the front through the condenser grill of the unit Portable or modular building placement must be in a way that the...

Page 16: ...ications The spacing between louvers on the grille shall not be larger than 5 8 It is recommended that a Bard Return Air Grille Kit is installed that is designed specifically for the wall mount produc...

Page 17: ...installation but is not required Review all requirements listed on unit labels and on serial plate located on the side of the unit 2 Locate and mark bolt hole locations and bottom mounting bracket loc...

Page 18: ...2HY C48HY C60HY 20 20 10 TABLE 2 Minimum Clearances Required to Combustible Materials Model Supply Air Duct 1st 3 Cabinet C36HY C42HY C48HY C60HY 1 4 0 FIGURE 12 Vent Installation Removal Clearance Re...

Page 19: ...Rain Hood Built In Low Voltage Recessed front cover J 1 375 A C I K D H 2 250 3 000 Mounting Side Wall Brackets Built In Location Shipping Flashing Top Rain DO NOT PLACE ELECTRICAL ENTRANCES IN SHADE...

Page 20: ...and Hole Location View Supply Opening Return Opening UNITS REQUIRED DIMESIONS A B C D E F G C36HY C42HY UNITS REQUIRED DIMESIONS TO MAINTAIN 1 4 MIN CLEARANCE FROM COMBUSTIBLE MATERIALS 30 1 2 10 1 2...

Page 21: ...l Supply Air Duct Duct Typical Building Wall Frame Note Side section view of supply air duct for wall mounted unit showing 1 4 clearance to combustible surfaces Fire hazard Maintain minimum 1 4 cleara...

Page 22: ...CLEARANCE STRUCTURAL STEEL ALL AROUND DUCT THIS STRUCTURAL MEMBER LOCATED TO MATCH STUD SPACING FOR REST OF WALL A SECOND MEMBER MAY BE REQUIRED FOR SOME WALLS RETURN DUCT MIS 3982 B See Figure 14 Mo...

Page 23: ...best unit performance and efficiency Review duct grille or return duct work Avoid using restrictive duct work to Unit Mount Return Grille Fixed Blade Wall wall Outside Wall Ducted Installations Adjus...

Page 24: ...stallation If field power is supplied to the left side of the unit run the high voltage wires under the shield shown in Figure 19 and to the right of the wire shield next to the compressor contactor a...

Page 25: ...ventilation option and indoor blower L terminal is 24 volt alarm active output For units equipped with an alarm relay 1 terminal is the normally closed contact on the relay 2 terminal is the normally...

Page 26: ...Electronic HP or Conventional Auto or Manual Changeover with Humidity and Occupancy Sensor BACnet Thermostat option only permissable for units up to 12KW electric heat 8403 083 2 Stage Cool 2 Stage H...

Page 27: ...ration add jumper if optional CO2 controller is not used Vent will run while blower is energized For ECON CRV V an additional wire change is required See install manual 4 Factory installed jumper Remo...

Page 28: ...ly See vent installation manual 6 For vent operation add jumper if optional CO2 controller is not used Vent will run while blower is energized For ECON CRV V an additional wire change is required See...

Page 29: ...410A refrigerant it must come out of the charging cylinder tank as a liquid to avoid any fractionation and to ensure optimal system performance Refer to instructions for the cylinder that is being ut...

Page 30: ...nser fan motor will have a delayed start until system refrigerant operating pressure builds up After starting the fan motor may or may not cycle depending upon ambient conditions This is normal operat...

Page 31: ...efrost mode Factory default setting is 60 minutes During the defrost mode the refrigerant cycle switches back to the cooling cycle the outdoor motor stops electric heaters are energized and hot gas pa...

Page 32: ...cian to override or speed up this timing period and shorting out the SPEEDUP terminals for a few seconds can do this Low Pressure Switch Bypass Operation The control has a selectable SW1 low pressure...

Page 33: ...plied jumper plug is in place The unit will not operate without anything plugged in This plug is located on the side of the control panel behind the front vent door behind the filter access door If th...

Page 34: ...rmer is bad or the unit wiring is incorrect 10 Check for Compressor output signal Is there 24 volts AC between CC C Yes go to Step 12 No go to Step 13 11 No Y compressor input signal Check thermostat...

Page 35: ...6 0 144374 22 0 43554 60 0 15310 98 0 6098 15 0 139576 23 0 42295 61 0 14921 99 0 5961 14 0 134956 24 0 41077 62 0 14544 100 0 5827 13 0 130506 25 0 39898 63 0 14177 101 0 5697 12 0 126219 26 0 38757...

Page 36: ...ontrol replacement check Perform Moisture Check Motor won t start Motor rocks but won t start Check for loose or compliant motor mount Make sure blower wheel is tight on shaft Perform motor control re...

Page 37: ...motor plug just removed to the motor shell is 100K ohms see Figure 24 Measure to unpainted motor end plate If any motor lead fails this test do not proceed to install the control module the motor is d...

Page 38: ...ways Energized Pin 2 X Pin 3 24 VAC C Common Signal Always Energized Pin 4 Not Used Pin 5 Not Used Pin 6 X X X X X Pin 7 Not Used Pin 8 Not Used Pin 9 X X X Pin 10 X X Pin 11 Not Used Pin 12 24 VAC Ho...

Page 39: ...ndenser coil as thoroughly as needed 5 Reverse steps to re install Important Cleaning Note For improved start up performance wash the indoor coil with dishwasher detergent IMPORTANT Please be aware of...

Page 40: ...e 147 148 149 151 152 153 154 155 157 158 160 Head Pressure 318 342 367 394 421 449 479 509 541 573 607 C42HY 75 62 Suction Pressure 134 134 134 135 136 137 138 139 140 142 143 Head Pressure 314 333 3...

Page 41: ...e 152 154 155 156 157 159 160 162 163 165 166 Head Pressure 251 290 311 334 358 382 408 436 464 493 524 C42HY 75 62 Suction Pressure 137 137 137 137 138 139 140 141 143 145 147 Head Pressure 241 279 2...

Page 42: ...44 50 56 62 69 76 83 90 98 106 115 124 133 Head Pressure 273 285 296 308 319 331 342 353 364 376 387 398 409 420 TABLE 12B Heating Pressures Part Load Air Temperature Entering Outdoor Coil F Model Re...

Page 43: ...C09 C15 460 60 3 1 1 1 1 17 25 31 31 20 25 35 35 These Minimum Circuit Ampacity values are to be used for sizing the field power conductors Refer to the National Electrical code latest version Article...

Page 44: ...or to prevent short circuiting The 10 reduction will only be adjusted when unit is running in cooling mode In heating mode the blower will remain at rated airflow Dirty Filter Switch 1 Disconnect all...

Page 45: ...ps and the light comes on If the filter is restricted by 75 or desired restriction amount skip to Step 6 4 If switch setting adjustment is required disconnect power to the unit Remove the upper front...

Page 46: ...8V units only Model Rated ESP Maximum ESP Blower Only Cooling Heating 1st Stage CFM Cooling Heating 2nd Stage CFM Electric Heat C36HY 0 15 0 50 800 800 1100 1100 C42HY 0 15 0 50 800 900 1300 1300 C48H...

Page 47: ...FAD NE5 Fresh Air Damper No Exhaust X X FAD BE5 Fresh Air Damper Barometric Exhaust X X CRV F5 Commercial Ventilator On Off Spring Return X X CRV V5 Commercial Ventilator 0 10V Spring Return X X ECON...

Page 48: ...H042A A05 X EHCH042A A10 X EHCH042A B05 X EHCH042A B09 X EHCH042A B15 X EHCH048A A05 X EHCH048A A10 X EHCH048A A15 X EHCH048A B05 X EHCH048A B09 X EHCH048A B15 X EHCH048A C05 X EHCH048A C09 X EHCH048A...

Page 49: ...Manual 2100 769A Page 49 of 50 GRAPH 1 CH FAD NE5 Without Exhaust Ventilation Delivery GRAPH 2 CH FAD BE5 With Exhaust Ventilation Delivery...

Page 50: ...Manual 2100 769A Page 50 of 50 GRAPH 3 C36H C42H CRV FS Ventilation Delivery GRAPH 4 CC48H C60H CRV FS Ventilation Delivery...

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Bard CH Series, Installation Instructions Manual

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