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WALL MOUNTED
PACKAGED
INSTALLATION
AIR CONDITIONER
INSTRUCTIONS
Models: WA302
WA372
Bard Manufacturing Company, Inc. Manual No.: 2100-404E
Bryan, Ohio 43506 Supersedes: 2100-404D
File: Volume III, Tab 16
Since 1914...moving ahead just as planned.
Date: 01-16-09
Manual 2100-404E
© Copyright 2002
Page 1 of 19
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Contents Start Up Getting Other Information and Publications Important Installer Note ......................................... 15 For more information, High Pressure Switch ............................................ 15 contact these publishers .......................................... 3 Three Phase Scroll Compressor Start Up Wall Mount General Information Information............................................................. 15 Air Conditioner Wall Mount Model Nomenclature .... 4 Phase Mon
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Getting Other Information and Publications These publications can help you install the air FOR MORE INFORMATION, CONTACT conditioner or heat pump. You can usually find these at THESE PUBLISHERS: your local library or purchase them directly from the publisher. Be sure to consult current edition of each ACCA Air Conditioning Contractors of America standard. 1712 New Hampshire Avenue NW Washington, DC 20009 Telephone: (202) 483-9370 National Electrical Code ....................... ANSI/NFPA 70 Fa
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WALL MOUNT GENERAL INFORMATION AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE WA 37 2 — A 10 X X X X X A MODEL KW CONTROL REVISIONS NUMBER MODULES (See Spec. VOLTS & PHASE CAPACITY COLOR OPTIONS Sheet S3208) A - 230/208/60/1 25 - 2 Ton X - Beige (Standard) B - 230/208/60/3 37 - 3 Ton 1 - White COIL OPTIONS C - 460/60/3 2 - Mesa Brown X- Standard 4 - Buckeye Gray 1 - Phenolic Coated Evaporator 5 - Desert Brow
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Manual 2100-404E Page 5 of 19 TABLE 2 DIMENSIONS OF BASIC UNIT (NOMINAL) Sn upply Retur Width Depth Height Model (W) (D) (H) A BCB EF G I J K L M N O P Q R S T WA302 35 8.2013 7.1278 0.5678 .828 7.818 3.820 7.840 0.015 8.523 5.715 7.925 6.725 8.720 9.225 7.025 .735 9.1224 2.799 .140 .110 2.0 5.0 WA372 FIGURE 1 UNIT DIMENSIONS FRONT VIEW SIDE VIEW BACK VIEW
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TABLE 3 ELECTRIC HEAT TABLE WA302-A WA302-B WA302-C Models WA372-A WA372-B WA372-C 21 40V-123 08V- 23 40V-23 08V- 460V- KS WAH MPBS TUAH MPBS TU AH MPBS TUAH MPBS TU AH MP BTU 58 .025 0.11 7,0610 8.1- 2,80 -- - -- - -- - -- - -- - -- 16 0.040 1.32 4,1330 6.2- 5,60 -- - -- - -- - -- - -- - -- 15 5.060 2.51 1,2050 4.3- 8,40 -- - -- - -- - -- - -- - -- 6- .0 -- - -- - -- - -4 - 10 4.25 0,5010 2.12 5,36 75 . 20,47 9- .0 -- - -- - -- - -7 - 20 1.37 0,6010 8.28 3,03 10 0. 30,70 1- 5.0 -- - -- - -- -
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DUCT WORK FRESH AIR INTAKE All units are built with fresh air inlet slots punched in All duct work, supply and return, must be properly sized the service panel. for the design airflow requirement of the equipment. Air Conditioning Contractors of America (ACCA) is an If the unit is equipped with the fresh air damper excellent guide to proper sizing. All duct work or assembly, the assembly is shipped already attached to portions thereof not in the conditioned space should be the unit. The dampe
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INSTALLATION INSTRUCTIONS 6. Position unit in opening and secure with 5/16 lag WALL MOUNTING INFORMATION bolts; use 7/8 inch diameter flat washers on the lag 1. Two holes, for the supply and return air openings, bolts. must be cut through the wall as shown in Figure 3. 7. Secure rain flashing to wall and caulk across entire 2. On wood-frame walls, the wall construction must be length of top. See Figure 3. strong and rigid enough to carry the weight of the unit without transmitting any unit vibr
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The electrical data lists fuse and wire sizes (75ºC copper) WIRING — LOW VOLTAGE WIRING for all models, including the most commonly used heater 230/208V, 1 phase and 3 phase equipment dual primary sizes. Also shown are the number of field power circuits voltage transformers. All equipment leaves the factory required for the various models with heaters. wired on 240V tap. For 208V operation, reconnect from The unit rating plate lists a “Maximum Time Delay Relay 240V to 208V tap. The acceptabl
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Manual 2100-404E Page 10 of 19 FIGURE 3 MOUNTING INSTRUCTIONS
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FIGURE 4 WALL-MOUNTING INSTRUCTIONS SEE FIGURE 3 – MOUNTING INSTRUCTIONS FIGURE 5 WALL-MOUNTING INSTRUCTIONS SEE UNIT DIMENSIONS, FIGURE 1, FOR ACTUAL DIMENSIONS SEE FIGURE 1 FOR DUCT DIMENSIONS Manual 2100-404E Page 11 of 19
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FIGURE 6 COMMON WALL-MOUNTING INSTALLATIONS Manual 2100-404E Page 12 of 19
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FIGURE 7 ELECTRIC HEAT CLEARANCE Side section view of supply air duct for wall mounted unit showing 1/4 inch clearance to combustible surfaces. WARNING A minimum of 1/4 inch clearance must be maintained between the supply air duct and combustible materials. 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 material and may result in a f
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FIGURE 8 LOW VOLTAGE WIRING Manual 2100-404E Page 14 of 19
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START UP IMPORTANT INSTALLER NOTE PHASE MONITOR For improved start-up performance, wash the indoor coil All units with three phase compressors are equipped with a dishwasher detergent. with a 3 phase line monitor to prevent compressor damage due to phase reversal. HIGH PRESSURE SWITCH The phase monitor in this unit is equipped with two LEDs. If the Y signal is present at the phase monitor The WA372 models are supplied with a remote reset and phases are correct the green LED will light. high pre
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Alarm Relay Output COMPRESSOR CONTROL MODULE The compressor control module is optional on the Alarm terminal is output connection for applications models covered by this manual. The compressor control where alarm relay is employed. This terminal is is an anti-short cycle/lockout timer with high and low powered whenever compressor is locked out due to HPC pressure switch monitoring and alarm relay output. or LPC sequences as described. NOTE: Both high and low pressure switch controls are Adjust
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TROUBLESHOOTING The suction line temperatures in Table 8 are based upon FAN BLADE SETTING DIMENSIONS 80ºF dry bulb/67ºF wet bulb (50 percent R.H.) Shown in the drawing below are the correct fan blade temperature and rated airflow across the evaporator setting dimensions for proper air delivery across the during cooling cycle. outdoor coil. TABLE 9 Any service work requiring removal or adjustment in the INDOOR BLOWER PERFORMANCE fan and/or motor area will require that the dimensions CFM AT 230 V
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TABLE 12 COOLING PRESSURE Outdoor Temperature °F Return Air ModelTe emperatureP5 ressur 708580959015 010 015 1 11 75 deg DB LowSide 75 76 78 79 80 81 83 84 85 62 deg WB HighSide 215 229 244 258 275 292 308 327 345 80 deg DB LowSide 80 81 83 85 86 87 89 90 91 WA302 67 deg WB HighSide 220 235 250 265 282 299 316 335 354 85 deg DB LowSide 83 84 86 88 89 90 92 93 94 72 deg WB HighSide 228 243 259 274 292 309 327 347 366 75 deg DB LowSide 69 70 72 74 75 77 78 79 79 62 deg WB HighSide 200 214 229 245
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TABLE 13 OPTIONAL ACCESSORIES MN ODEL DESCRIPTIO Be OP-3 Blank Off Plat XXXX Br FAD-3 Barometric Fresh Air Dampe XXXX Mr FAD-3 Motorized Fresh Air Dampe XXXX Ct RV-3 Commercial Ventilator with Exhaus XXXX Et IFM-3B Economizer with Exhaus XXX Wr ERV-A3B Energy Recovery Ventilato XXX Wr ERV-A3B Energy Recovery Ventilato X Cl MA-6 Low Ambient Contro XXX Cl MA-16A Low Pressure Contro XXXX CC MA-18A LAC + LP XXX Ct MC-15SX tart Ki Ee HWA03-A05 Heater Packag 1 X Ee HWA03-A08 Heater Packag 1 X Ee HWA0
