Bard W42AC-A User Manual Download

Page: 31 / 40

Manual 2100-692

Page

31 of 40

TABLE 11

Cooling Pressure

–

Balanced Climate Airflow

Air Temperature Entering Outdoor Coil °F

Low side pressure ± 4 PSIG
High side pressure ± 10 PSIG

Tables are based upon Balanced Climate 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”.

* 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

131

W42AC

75/62

Low Side

High Side

115
312

117
329

119
347

121
368

122
391

125
415

127
443

129
472

132
503

134
536

137
572

139
617

80/67

Low Side

High Side

123
320

125
337

127
356

129
377

131
401

134
426

136
454

138
484

141
516

143
550

146
587

149
633

85/72

Low Side

High Side

127
331

129
349

131
368

134
390

136
415

139
441

141
470

143
501

146
534

148
569

151
608

--*

W48AC

75/62

Low Side

High Side

122
320

123
341

125
365

127
388

129
412

132
438

134
464

136
491

137
520

139
549

141
579

143
616

80/67

Low Side

High Side

130
328

132
350

134
374

136
398

138
423

141
449

143
476

145
504

147
533

149
563

151
594

153
632

85/72

Low Side

High Side

135
339

137
362

139
387

141
412

143
438

146
465

148
493

150
522

152
552

154
583

156
615

--*

W60AC

75/62

Low Side

High Side

120
323

122
345

123
370

126
394

128
419

130
445

132
471

134
498

136
526

137
554

138
583

141
619

80/67

Low Side

High Side

128
331

130
354

132
379

135
404

137
430

139
456

141
483

143
511

145
539

147
568

148
598

151
635

85/72

Low Side

High Side

132
343

135
366

137
392

140
418

142
445

144
472

146
500

148
529

150
558

152
588

153
619

--*

W72AC

75/62

Low Side

High Side

109
325

111
347

113
371

115
394

117
419

119
445

121
472

122
499

124
528

126
558

128
588

130
626

80/67

Low Side

High Side

117
333

119
356

121
380

123
404

125
430

127
456

129
484

131
512

133
542

135
572

137
603

139
642

85/72

Low Side

High Side

121
345

123
368

125
393

127
418

129
445

131
472

134
501

136
530

138
561

140
592

142
624

--*

Summary of Contents for W42AC-A

Page 1: ...DITIONER Models INSTALLATION INSTRUCTIONS W42AC A W42AC B W42AC C W48AC A W48AC B W48AC C Bard Manufacturing Company Inc Bryan Ohio 43506 www bardhvac com Manual 2100 692 Supersedes NEW Date 6 13 19 W...

Page 2: ...alanced ClimateTM Mode 24 Vent Connection Plug 25 Compressor Control Module 25 Features 25 Delay on Make Timer 25 Short Cycle Delay on Break 25 Low Pressure Detection 26 High Pressure Detection 26 Tes...

Page 3: ...rch Park P O Box 9101 Quincy MA 02269 9901 Telephone 800 344 3555 Fax 617 984 7057 FIGURES Figure 1 Front Control Panel Cover 5 Figure 2 Removing Left Filter 5 Figure 3 Removing Second Filter 6 Figure...

Page 4: ...read before beginning the installation Note particularly Starting Procedure and any tags and or labels attached to the equipment While these instructions are intended as a general recommended guide t...

Page 5: ...ng instructions on page 6 and Figures 3 7 pages 8 12 for further details Ducts through the walls must be insulated and all joints taped or sealed to prevent air or moisture entering the wall cavity So...

Page 6: ...ray see Figure 7 FIGURE 6 Remove Four Screws 5 Re install the four 4 screws into the upper screw holes on the filter support brackets Then bend the tab up out of the way see Figure 8 FIGURE 7 Re Insta...

Page 7: ...he damper opens so that the amount of fresh air that enters the structure is regulated Graphs found on pages 38 and 39 give approximate fresh air amounts based on the slide adjustment setting All capa...

Page 8: ...condensate drainage A plastic drain hose extends from the drain pan in the upper section of the unit and extends down to the unit base An opening is supplied towards the back of the unit base for the...

Page 9: ...used applicable installation codes may limit this cabinet to installation only in a single story structure Thermostat or Indoor Temperature Sensor Placement The location and installation of the thermo...

Page 10: ...and mark bolt hole locations and bottom mounting bracket location Install bottom mounting bracket with field supplied fasteners to wall if it is to be used optional Bracket must be level and installed...

Page 11: ...2AC 1 4 0 FIGURE 12 Vent Installation Removal Clearance Required 20 750 2 000 37 250 17 750 45 000 MIS 4042 KEEP AREA CLEAR FOR 45 VENT SHOWN OUTSIDE OF UNIT CLEARANCE NEEDED ON LEFT OR RIGHT SIDE OF...

Page 12: ...Built In Low Voltage Electrical Entrance J A C I K D 2 250 H 1 375 Location Flashing Top Rain Shipping Side Wall Mounting Brackets Built In 375 B E O M N T S S S S S L R 375 TYP Width W Depth D Height...

Page 13: ...OMMENDED 1 CLEARANCE FROM COMBUSTIBLE MATERIALS 32 12 5 1 2 2 29 16 1 7 8 W6AC W72AC UNITS REQUIRED DIMESIONS TO MAINTAIN 1 4 MIN CLEARANCE FROM COMBUSTIBLE MATERIALS 30 1 2 10 1 2 6 1 4 1 1 4 29 3 4...

Page 14: ...OF SUPPLY AIR DUCT FOR WALL MOUNTED UNIT SHOWING 1 4 CLEARANCE TO COMBUSTIBLE SURFACES Fire hazard Maintain minimum 1 4 clearance between the supply air duct and combustible materials in the first 3...

Page 15: ...FINISH WALL OVER FRAME ATTACH TO BOTTOM PLATE OF WALL 1 000 CLEARANCE ALL AROUND DUCT ATTACH TO TOP PLATE OF WALL THIS STRUCTURAL MEMBER LOCATED TO MATCH STUD SPACING FOR REST OF WALL A SECOND MEMBER...

Page 16: ...WERED GRILLE RAISED FLOOR RETURN AIR OUTSIDE SPACE RETURN AIR RAFTERS RAFTERS WALL OUTSIDE WALL SUPPLY AIR DUCT FALSE WALL OUTSIDE WALL OUTSIDE W GRILLE SURFACE RETURN AIR WALL FLASHING RAIN FLASHING...

Page 17: ...IRE SHIELD FIELD WIRE SHIELD FRONT VIEW USE CONDUIT WHEN FIELD WIRES COME IN THROUGH THE BACK RIGHT SIDE VIEW FIGURE 19 High Voltage Connections the number of field power circuits required for the var...

Page 18: ...cted with a brass jumper bar which can be removed and RT and R connected to an external NC normally closed contact such as a fire smoke detector that will cause shutdown of the equipment upon activati...

Page 19: ...he switch is adjustable and measures pressure drop across the unit filter surface When pressure drop is higher than the switch setting NO and NC contacts are provided to indicate the filter needs to b...

Page 20: ...Cool 3 stage Heat Programmable Non Programmable HP or Conventional Auto or Manual Changeover Humidity Sensor w dehumidification Motion Sensor w Intelligent Learning Control BACnet compatible CS9B THO...

Page 21: ...cupied periods Must be configured for multi stage for Y1 output to be active 1st stage cooling For dehumidification must be configured for No Economizer for YO D to be active for humidity control 4 Fa...

Page 22: ...CO2 control signal for modulating ventilation control Optional for ECON Only See vent installation manual 6 For vent operation add jumper if optional CO2 controller is not used Vent will run while bl...

Page 23: ...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 utilize...

Page 24: ...peed These models are factory wired on low speed Service Hints 1 Caution owner operator to maintain clean air filters at all times and also not to needlessly close off supply and return air registers...

Page 25: ...led vent package it will be plugged in but the jumper plug will also be tethered next to the connection for troubleshooting purposes if necessary Compressor Control Module The compressor control modul...

Page 26: ...timers can be set by DIP switches in order to delay signaling a power brownout for a specific length of time after compressor contactor is energized This allows the compressor a time period to start e...

Page 27: ...3302 PA13362 A B PA13422 A B C PA13482 A B C PA13602 A B C contain the X13 Series Motors TROUBLESHOOTING GE X13 SERIES ECM2 3 MOTORS If the Motor is Running 1 It is normal for the motor to rock back a...

Page 28: ...tput 24VAC Common 24VAC Common 24VAC R Signal through thermostat output 2 If the motor has proper high voltage and ground at the L L1 G N L2 connections then continue with the Model SelecTech Communic...

Page 29: ...oil for cleaning or to service the outdoor fan first remove the side grilles 3 The fan shroud sides can then be removed for ease of access to the coil and the back side of the shroud by removing the s...

Page 30: ...85 72 Low Side High Side 135 333 138 357 140 382 142 407 144 434 146 461 148 489 150 519 152 549 155 580 157 612 W48AC 75 62 Low Side High Side 128 331 131 352 133 374 135 398 137 422 138 448 140 474...

Page 31: ...49 633 85 72 Low Side High Side 127 331 129 349 131 368 134 390 136 415 139 441 141 470 143 501 146 534 148 569 151 608 W48AC 75 62 Low Side High Side 122 320 123 341 125 365 127 388 129 412 132 438 1...

Page 32: ...t C Ckt A Ckt B Ckt C W42AC A00 A0Z A05 A10 A15 A20 230 208 1 1 1 1 1 or 2 1 or 2 31 31 57 83 109 50 50 60 90 120 8 8 6 4 2 10 10 10 8 6 57 57 26 52 60 60 30 60 6 6 10 6 10 10 10 10 W42AC B00 B0Z B06...

Page 33: ...page 35 for the corresponding airflow of each tap Set the unit duct static based on the highest airflow that the unit will run at NOTE Be sure to adjust the system static or blower speed to maintain a...

Page 34: ...s used when Balanced Climate is called for by energizing the Y1 terminal of the low voltage terminal block with 24VAC Speed tap 2 is overridden if taps 3 4 or 5 are energized Speed Tap 3 Default LO Co...

Page 35: ...1655 1555 1785 1685 1870 1780 0 25 1615 1520 1750 1645 1835 1745 0 30 1575 1485 1715 1610 1800 1710 0 40 1485 1405 1635 1540 1730 1635 050 1390 1325 1550 1475 1655 1560 W60AC 0 00 1540 1480 1960 1870...

Page 36: ...5 18 1 12800 6 14 4 20500 12 5 15360 7 2 20500 9 21 7 30600 18 7 23030 10 8 30700 10 41 6 34130 36 2 25600 15 62 5 51250 54 0 38400 36 2 51200 31 2 38400 18 0 51200 18 43 3 61430 37 4 46060 20 83 2 68...

Page 37: ...Off X CMA 42 Alarm Relay X CMA 43 ODT X CMA 44 DDC X BOP5 Blank Off Plate X FAD NE5 Fresh Air Damper No Exhaust X FAD BE5 Fresh Air Damper Barometric Exhaust X CRVF 5 Commercial Ventilator On Off Spri...

Page 38: ...D B18 X EHWA42C C05 X EHWA42C C09 X EHWA42CD C09 X EHWA42C C15 X X EHWA48C A05 X X EHWA48CD A05 X EHWA48CD A10 X EHWA48CD B09 X EHWA48C B15 X EHWA48C B18 X X X X EHWA48CD B18 X EHWA48C C09 X X X EHWA6...

Page 39: ...Manual 2100 692 Page 39 of 40 GRAPH 1 W42AC FAD NE5 W O Exhaust Ventilation Delivery GRAPH 2 W48AC FAD NE5 W O Exhaust Ventilation Delivery...

Page 40: ...Manual 2100 692 Page 40 of 40 GRAPH 3 W60AC FAD NE5 W O Exhaust Ventilation Delivery GRAPH 4 W72AC FAD NE5 W O Exhaust Ventilation Delivery...

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