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WALL MOUNTED PACKAGED
AIR CONDITIONER
INSTALLATION
Models: WA611
INSTRUCTIONS
WA701-B
WA701-C
WA702-A
WA721
MIS-801
Bard Manufacturing Company Manual No.: 2100-425
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 Start Up Getting Other Information and Publications Important Installer Note ......................................... 14 For more information, contact these publishers: ..... 1 Crankcase Heaters ................................................ 14 Wall Mount General Information High Pressure Switch ............................................ 14 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 National Electrical Code ....................... ANSI/NFPA 70 Telephone: (202) 483-9370 Fax:
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WALL MOUNT GENERAL INFORMATION AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE MODEL NUMBER CONTROL MODULES J – Standard on all WA 70 1 – B 09 X X X X X J Models CAPACITY 61 – 5 Ton 70 – 6 Ton COIL OPTIONS 72 – 6 Ton X – Standard REVISION VENTILATION OPTIONS 1 – Phenolic Coated Evaporator X – Barometric Fresh Air Damper 2 – Phenolic Coated Condenser (Standard) VOLTS & PHASE 3 – Phenolic Coated Evaporator KW B – Blank-off Plate A – 230/208-1 00 – No KW
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Manual 2100-425 Page 3 TABLE 2 DIMENSIONS OF BASIC UNIT FOR ARCHITECTURAL AND INSTALLATION REQUIREMENTS (Nominal) Sn upply Retur Width Depth Height Unit W D H A BCB EF G I J K L M N O P Q WA611 WA7044 228 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 WA721 All dimensions in inches. FIGURE 1 UNIT DIMENSIONS MIS-764
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Manual 2100-425 Page 4 TABLE 3 ELECTRICAL SPECIFICATIONS SINGLE CIRCUIT DUAL CIRCUIT 3 1 2 2 3 1 2 2 MaximumOver Maximum MinimumCircuit Current No.of Minimum Over Field Ground Ampacity Protection Field Wire Size Ground Wire Size Power Circuit Current Wire Wire Md ODELS Rate Circuits Ampacity Protection Size SizeCB KT ACA KTCB KTCA KTCB KTCA KTCB KT CKT WA611-A00,A0Z 1 43 50 8 10 NA NA NA NA NA NA NA NA -A05 1 43 50 8 10 NA NA NA NA NA NA NA NA 203/208-1 -A08 1 47 60 8 10 NA NA NA NA NA NA
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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 checked for external signs of shipping damage. If damage is found, the receiving party must contact the equipment. Air Conditioning Contractors of America (ACCA) is an excellent guide to proper sizing. All last carrier immediately, preferably in writing, requesting inspection by the carrier’s agent. duct work or portions the
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All capacity, efficiency and cost of operation FILTERS information as required for Department of Energy A 1 inch throwaway filter is supplied with each unit. “Energyguide” Fact Sheets is based upon the fresh air The filter slides into position making it easy to service. blank-off plate in place and is recommended for This filter can be serviced from the outside by maximum energy efficiency. removing the service door. A 1 inch washable filter The blank-off plate is available upon request from the
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INSTALLATION INSTRUCTIONS 4. Mount bottom mounting bracket. WALL MOUNTING INFORMATION 5. Hook top rain flashing under back bend of top. 1. Two holes, for the supply and return air openings, Top rain flashing is shipped secured to the right must be cut through the wall as shown in Figure 3. side of the back. 2. On wood-frame walls, the wall construction must 6. Position unit in opening and secure with 5/16 lag be strong and rigid enough to carry the weight of bolts; use 7/8 inch diameter flat was
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The unit rating plate lists a “Maximum Time Delay convert for the locking capability, bend the tab located Relay Fuse” or “HACR" type circuit breaker that is to in the bottom left hand corner of the disconnect be used with the equipment. The correct size must be opening under the disconnect access panel straight used for proper circuit protection and also to assure out. This tab will now line up with the slot in the door. that there will be no nuisance tripping due to the When shut, a padlock ma
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NOTE: The voltage should be measured at the field WIRING — LOW VOLTAGE WIRING power connection point in the unit and while 230/208V, 1 phase and 3 phase equipment dual the unit is operating at full load (maximum primary voltage transformers. All equipment leaves amperage operating condition). the factory wired on 240V tap. For 208V operation, Five (5) wires should be run from thermostat subbase reconnect from 240V to 208V tap. The acceptable to the 24V terminal board in the unit. A five operat
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FIGURE 4 WALL-MOUNTING INSTRUCTIONS SEE FIGURE 3 — MOUNTING INSTRUCTIONS MIS-548 FIGURE 5 WALL-MOUNTING INSTRUCTIONS SEE UNIT DIMENSIONS, FIGURE 1, FOR ACTUAL DIMENSIONS SEE FIGURE 1 FOR DUCT DIMENSIONS MIS-549 Manual 2100-425 Page 10
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FIGURE 6 COMMON WALL-MOUNTING INSTALLATIONS MIS-550 Manual 2100-425 Page 11
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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. MIS-277 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
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FIGURE 8 LOW VOLTAGE WIRING Manual 2100-425 Page 13
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START UP IMPORTANT INSTALLER NOTE HIGH PRESSURE SWITCH For improved start-up performance, wash the indoor The WA611, WA70 and WA721 models are supplied coil with a dishwasher detergent. with a remote reset high pressure switch. If tripped, this pressure switch may be reset by turning the thermostat off then back on again. CRANKCASE HEATERS WA611, WA70 and WA721 units are provided with THREE PHASE SCROLL COMPRESSOR compressor crankcase heat. START UP INFORMATION The WA611, WA70 and WA721 models
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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 with no delay. all times. Also, not to needlessly close off supply and return air registers. This reduces air flow High Pressure Switch and Lockout Sequence through the system, which shortens equipment If the high pressure switch opens, the compressor service life as well as increasing operating costs. contactor will de-energiz
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PHASE MONITOR ADJUSTMENTS All units with three phase scroll compressors are Adjustable Delay on Make and Delay on Break equipped with a 3 phase line monitor to prevent Timer compressor damage due to phase reversal. The potentiometer is used to select Delay on Break The phase monitor in this unit is equipped with two time from 30 seconds to 5 minutes. Delay on Make LEDs. If the Y signal is present at the phase monitor (DOM) timing on power-up and after power and phases are correct the green LED
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TROUBLESHOOTING 6. Service motor/fan as needed. FAN BLADE SETTING DIMENSIONS 7. Reverse steps to reinstall. Shown in the drawing below are the correct fan blade setting dimensions for proper air delivery across the outdoor coil. REFRIGERANT CHARGE Any service work requiring removal or adjustment in The correct system R-22 charge is shown on the unit the fan and/or motor area will require that the rating plate. Optimum unit performance will occur dimensions below be checked and blade adjusted in
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TABLE 11 MAXIMUM ESP OF OPERATION ELECTRIC HEAT ONLY M1 odelW0 A61 W1 A7 WA72 Speed Medium High Low High Low High KW Speed Speed Speed Speed Speed Speed -A05 .30 .30 .50 .50 --- --- -A08 .30 .30 --- --- --- --- -A10 .30 .30 .50 .50 --- --- -A20 .30 .30 .40 .50 --- --- -B09 .30 .30 .50 .50 .50 .50 -B15 --- --- .50 .50 .50 .50 -B18 --- --- .50 .50 .50 .50 -C09 .30 .30 .50 .50 --- --- -C15 --- --- .50 .50 --- --- TABLE 12 COOLING PRESSURE – (All temperatures °F) Return Air ModelTe emp.P5 ressur
