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WALL MOUNTED PACKAGED
AIR CONDITIONER
INSTALLATION
INSTRUCTIONS
Model: WL701-B, WL701-C,
WL702-A
MIS-861
Bard Manufacturing Company
Manual No.: 2100-426
Bryan, Ohio 43506 Supersedes:
File: Volume III, Tab 16
Since 1914...Moving ahead just as planned.
Date: 01-01-03
© Copyright 2003
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CONTENTS Getting Other Information and Publications Start Up For more information, contact these publishers: ..... 1 Important Installer Note ......................................... 12 Crankcase Heaters ................................................ 12 Wall Mount General Information High Pressure Switch ............................................. 12 Air Conditioner Wall Mount Model Nomenclature .... 2 Three Phase Scroll Compressor Start Up Shipping Damage ..................................
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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 standard. ACCA Air Conditioning Contractors of America 1712 New Hampshire Ave. N.W. Washington, DC 20009 Telephone: (202) 483-9370 National Electrical Code ....................... ANSI/NFPA 70 Fax:
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WALL MOUNT GENERAL INFORMATION AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE MODEL NUMBER CONTROL MODULES J - Standard on all WL 70 1 – B 09 X X X X X J Models CAPACITY 70 - 6 Ton COIL OPTIONS X - Standard 1 - Phenolic Coated Evaporator REVISION VENTILATION OPTIONS 2 - Phenolic Coated Condenser X - Barometric Fresh Air Damper 3 - Phenolic Coated Evaporator VOLTS & PHASE (Standard) and Condenser A - 230/208-1 B - Blank-off Plate KW COLOR OPTIONS B - 230/208/60
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TABLE 2 DIMENSION OF BASIC UNIT FOR ARCHITECTURAL AND INSTALLATION REQUIREMENTS (NOMINAL) Sn upply Retur Width Depth Height Unit EF G I J K L M N O P Q W D H A BCB W2 L704428 2-1/98 4-7/98 -7/28 9-7/18 5-7/28 9-7/49 3-7/1840 1-5/3647 2-11/13442 4-3/44 2-1/33 -1/4830 3-7/ 1 All dimensions in inches. FIGURE 1 UNIT DIMENSIONS BACK VIEW SIDE VIEW FRONT VIEW MIS-1416 TABLE 3 ELECTRIC HEAT TABLE MA odelsWB L702- WC L701- WL701- 21 40V-1 23 08V- 23 40V- 23 08V- 460V- KS WAH MPBS TUAH MPBS TUAH MPBS
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SHIPPING DAMAGE DUCT WORK Upon receipt of equipment, the carton should be All duct work, supply and return, must be properly sized for the design air flow requirement of the equipment. Air checked for external signs of shipping damage. If damage is found, the receiving party must contact the Conditioning Contractors of America (ACCA) is an excellent guide to proper sizing. All duct work or last carrier immediately, preferably in writing, requesting inspection by the carrier’s agent. portions the
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All capacity, efficiency and cost of operation FILTERS information as required for Department of Energy “Energyguide” Fact Sheets is based upon the fresh air A 1 inch throwaway filter is supplied with each unit. blank-off plate in place and is recommended for The filter slides into position making it easy to service. maximum energy efficiency. This filter can be serviced from the outside by removing the service door. A 1 inch washable filter and 2 inch The blank-off plate is available upon reque
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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 length of top. See Figure 3. 2. On wood-frame walls, the wall construction must be strong and rigid enough to carry the weight of the 8. For additional mounting rigidity, the
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The disconnect access door on this unit may be locked WIRING — LOW VOLTAGE WIRING to prevent unauthorized access to the disconnect. To 230/208V, 1 phase and 3 phase equipment dual primary convert for the locking capability, bend the tab located voltage transformers. All equipment leaves the factory in the bottom left hand corner of the disconnect opening wired on 240V tap. For 208V operation, reconnect from under the disconnect access panel straight out. This tab 240V to 208V tap. The acceptable
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TABLE 5 THERMOSTAT WIRE SIZE Maximum Transformer Distance VA AFe L Wire Gaug In Feet 20 gauge 45 18 gauge 60 53 5 2. 16 gauge 100 14 gauge 160 12 gauge 250 TABLE 6 WALL THERMOSTAT AND SUBBASE COMBINATIONS Te hermostatSs ubbas Predominate Feature 8403-002 8404-003 1 stage heat,1 stage cool T87F3111 Q539A1220 System:heat-off-cool Fan:auto-on 8403-041-l -- 1 stage heat,1 stage coo T8034C System:heat-off-cool Fan:auto-on 8403-019 8404-012 1 stage cool,2 stage heat T874C1760 Q674A1001 System:heat-au
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FIGURE 5 WALL-MOUNTING INSTRUCTIONS SEE FIGURE 3 — MOUNTING INSTRUCTIONS MIS-948 FIGURE 6 WALL-MOUNTING INSTRUCTIONS SEE UNIT DIMENSIONS, FIGURE 1, FOR ACTUAL DIMENSIONS SEE FIGURE 1 FOR DUCT DIMENSIONS MIS-1051 Manual 2100-426 Page 9
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FIGURE 7 COMMON WALL-MOUNTING INSTALLATIONS MIS-1050 Manual 2100-426 Page 10
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FIGURE 8 LOW VOLTAGE WIRING MIS-1373C Manual 2100-426 Page 11
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START UP HIGH PRESSURE SWITCH IMPORTANT INSTALLER NOTE The WA701 and WA721 models are supplied with a For improved start-up performance, wash the indoor remote reset high pressure switch. If tripped, this coil with a dishwasher detergent. pressure switch may be reset by turning the thermostat off then back on again. CRANKCASE HEATERS WL701 units are provided with compressor crankcase THREE PHASE SCROLL COMPRESSOR heat. START UP INFORMATION The WL701 model has a band type heater located Scroll c
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During routine operation of the unit with no power SERVICE HINTS interruptions the compressor will operate on demand 1. Caution homeowner to maintain clean air filters at all with no delay. times. Also, not to needlessly close off supply and High Pressure Switch and Lockout Sequence return air registers. This reduces air flow through the system, which shortens equipment service life as well If the high pressure switch opens, the compressor as increasing operating costs. contactor will de-energiz
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ADJUSTMENTS PHASE MONITOR Adjustable Delay on Make and Delay on Break All units with three phase scroll compressors are Timer equipped with a 3 phase line monitor to prevent compressor damage due to phase reversal. The potentiometer is used to select Delay on Break time from 30 seconds to 5 minutes. Delay on Make (DOM) The phase monitor in this unit is equipped with two timing on power-up and after power interruptions is LEDs. If the Y signal is present at the phase monitor equal to 2 minutes
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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. Any service work requiring removal or adjustment in the TABLE 9 fan and/or motor area will require that the dimensions INDOOR BLOWER PERFORMANCE below be che
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TABLE 12 COOLING PRESSURE – (ALL TEMPERATURES °F) Return Air ModelTe emp.P5 ressur 708580959015 0 10 0 15 1 11 75 DB LowSide 68 68 69 70 71 72 73 74 75 62 WB HighSide 215 228 242 256 272 289 305 324 343 80 DB LowSide 73 73 74 75 76 77 78 79 80 WL702-A 67 WB HighSide 220 234 248 263 279 296 313 332 352 85 DB LowSide 76 76 77 78 79 80 81 82 83 72 WB HighSide 228 242 257 272 289 306 324 344 364 75 DB LowSide 62 63 64 65 66 67 68 69 70 62 WB HighSide 214 230 247 265 280 299 316 333 351 80 DB LowS
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