Bard WL423 Installation Instructions Manual
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Bard WL423, INSTALLATION INSTRUCTIONS WALL MOUNTED PACKAGE AIR CONDITIONERS MODELS WL423 WL484 WL602 Manual : 2100-400 Supersedes: File: Volume III Tab 16 Date: 01-31-02 Bard Manufacturing Company Bryan, Ohio 43506 Since 1914...Moving ahead just as planned. © Copyright 2002
Bard WL423, Figures Figure 1 Unit Dimensions ...................................... 3 Figure 2 Fresh Air Damper Assembly ................... 6 Figure 3 Mounting Instructions ............................... 8 Figure 4 Electric Heat Clearance .......................... 9 Figure 5 Wall Mounting Instructions ..................... 10 Figure 6 Wall Mounting Instructions.................... 10 Figure 7 Common Wall Mounting Installations......11 Figure 8 Unit 24V Terminal Board ....................... 13 Figure 9 Fan Blade Setting ................................. 16 Tables Table 1 Electric Heat Table ...
Manual 2100-400 Page 1 Getting Other Information and Publications These publications can help you install the air conditioner or heat pump. You can usually find these at your local library or purchase them directly from the publisher. Be sure to consult current edition of each standard. National Electrical Code ....................... ANSI/NFPA 70 Standard for
Bard WL423, Manual 2100-400 Page 2 WALL MOUNT GENERAL INFORMATION HEAT PUMP WALL MOUNT MODEL NOMENCLATURE WL 42 3 – A 10 X N X X X A NOTE: All vent options are without exhaust capability. May require separate field supplied barometric relief in building. TABLE 1 ELECTRIC HEAT TABLE sledoM A-324LW A-484LW A-206LW B-324LW B-484LW B-206LW C-324LW C-484LW C-206LW 1-0421-8023-0423-8023-064 WKAUTBAUTBAUTBAUTBAUTB 58.02050711.8100821 97.12006037.81030328.0100703 016.14031432.6300652 515.26002150.45004832.63002152.13004833.7100074 MODEL NUMBER CONTROL MODU
Bard WL423, Manual 2100-400 Page 3 FIGURE 1 UNIT DIMENSIONS MIS-1286 ledoM htdiW )W( htpeD )D( -gieH th )H( ylppuSnruteR EFG I JKLMNOPQRSTABCB 24LW 84LW 06LW 570.24234.22578.4888.988.9288.5188.9288.3401.9166.1300.0386.2349.6296.4334.2373.388.2488.3200.0144.100.6188.1 FRONT VIEWLEFT SIDE VIEW BACK VIEW
Bard WL423, Manual 2100-400 Page 4 Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors. Based on 75° C copper wire. All wiring must conform to NEC and all local codes. These “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors. Refer to the National Electric Code (latest revision), article 310 for power conductor sizing. CAUTION: When more than one field power conductor circuit is run through one conduit, the conductors must be derated. Pay special attention to note 8 of table 310 regarding Ampacity Adjustment Factors when more than 3 conductors are in a raceway. k j l TABLE 2 ELECTRICAL SPECI
Bard WL423, Manual 2100-400 Page 5 SHIPPING DAMAGE Upon receipt of equipment, the carton should be checked for external signs of shipping damage. If damage is found, the receiving party must contact the last carrier immediately, preferably in writing, requesting inspection by the carrier’s agent. GENERAL The equipment covered in this manual is to be installed by trained, experienced service and installation technicians. The refrigerant system is completely assembled and charged. All internal wiring is complete. The unit is designed for use with or without duct
Bard WL423, Manual 2100-400 Page 6 FRESH AIR INTAKE All units are built with fresh air inlet slots punched in the service panel. If the unit is equipped with a fresh air damper assembly, the assembly is shipped already attached to the unit. The damper blade is locked in the closed position. To allow the damper to operate, the maximum and minimum blade position stops must be installed. See Figure 2. CONDENSATE DRAIN A plastic drain hose extends from the drain pan at the top of the unit down to the unit base. There are openings in the unit base for the drain hose to pass through. In the event the drain hose is connected to a drain system of some type, it must be an open or vented type s
Bard WL423, Manual 2100-400 Page 7 INSTALLATION INSTRUCTIONS WARNING Failure to provide the 1/4 inch clearance between the supply duct and a combustible surface for the first 3 feet of duct can result in fire causing damage, injury or death. WALL MOUNTING INFORMATION 1. Two holes for the supply and return air openings must be cut through the wall as shown in Figure 3. 2. On wood frame walls, the wall construction must be strong and rigid enough to carry the weight of the unit without transmitting any unit vibration. 3. Concrete block walls must be thoroughly inspected to insure that they are capable of carrying the weight of
Manual 2100-400 Page 9 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 a
Manual 2100-400 Page 10 FIGURE 5 WALL MOUNTING INSTRUCTIONS FIGURE 6 WALL MOUNTING INSTRUCTIONS MIS-1051 SEE FIGURE 3 – MOUNTING INSTRUCTIONS SUPPLY AIR DUCT RETURN AIR OPENING RETURN AIR OPENING SUPPLY AIR OPENING BOTTOM MOUNTING BRACKET. MOUNT ON WALL BEFORE INSTALLING UNIT. RETURN AIR OPENING SUPPLY AIR OPENING WALL STRUCTURE FAC
Bard WL423, Manual 2100-400 Page 12 WIRING – MAIN POWER Refer to the unit rating plate for wire sizing information and maximum fuse or “HACR” type circuit breaker size. Each outdoor unit is marked with a “Minimum Circuit Ampacity”. This means that the field wiring used must be sized to carry that amount of current. Depending on the installed KW of electric heat, there may be two field power circuits required. If this is the case, the unit serial plate will so indicate. All models are suitable only for connection with copper wire. Each unit and/or wiring diagram will be marked “Use Copper Conductors Onl
Bard WL423, Manual 2100-400 Page 14 THREE PHASE SCROLL COMPRESSOR START UP INFORMATION Scroll compressors, like several other types of compressors, will only compress in one rotational direction. Direction of rotation is not an issue with single phase compressors since they will always start and run in the proper direction. However, three phase compressors will rotate in either direction depending upon phasing of the power. Since there is a 50-50 chance of connecting power in such a way as to cause rotation in the reverse direction, verification of proper rotation must be made. Verification of proper rotation direction is made by observing that suction p
Bard WL423, Manual 2100-400 Page 15 COMPRESSOR CONTROL MODULE The compressor control module is standard on the WL484 and WL602 models covered by this manual and is optional on the WL423 model. The compressor control is an anti-short cycle/lockout timer with high and low pressure switch monitoring and alarm relay output. Adjustable Delay On Make And Break Timer On initial power up or any time power is interrupted to the unit the delay on make period begins which will be 2 minutes plus 10% of the delay on break setting. W
Bard WL423, Manual 2100-400 Page 16 REMOVAL OF FAN SHROUD 1. Disconnect all power to the unit. 2. Remove the screws holding both grilles, one on each side of unit, and remove grilles. TROUBLESHOOTING The suction line temperatures in table above are based upon 80° F dry bulb / 67° F wet bulb (50% R.H.) temperature and rated airflow across the evaporator during cooling cycle. 3. Remove screws holding fan shroud to condenser and bottom. Nine (9) screws. 4. Unwire condenser fan motor. 5. Slide complete motor, fan blade, and shroud assembly out the left side of the unit. 6. Service motor/fan as needed. 7. Reverse steps to reinstall. REFRIGERANT C
Bard WL423, Manual 2100-400 Page 17 TABLE 8 RECOMMENDED AIRFLOW * Rated CFM and ESP on high speed tap. ledoM detaR *MFC detaR *PSE dednemmoceR egnaRwolfriA 324LW004103.0511-0061 484LW055102.5821-0571 206LW007103.5731-0591 TABLE 9 MAXIMUM ESP OF OPERATION ELECTRIC HEAT ONLY Values shown are for units equipped with standard 1 inch throwaway filter or 1 inch washable filter. Derate ESP by .15 for 2 inch pleated filters. ledoM324LW484LW206LW WK hgiH deepS woL deepS hgiH deepS woL deepS hgiH deepS woL deepS 50A- 01A- 51A- 05. 05. 05. 05. 05. 05. 05. 05. 05. 05. 05
Bard WL423, Manual 2100-400 Page 18 TABLE 11 OPTIONAL ACCESSORIES WL423-A WL423-B WL423-C WL484-A WL484-B WL484-C WL602-A WL602-B WL602-C traP rebmuNnoitpircseD 5-POB 5-DAFB 5-DAFM etalPffOknalB repmaDriAhserFcirtemoraB repmaDriAhserFdezirotoM X X X X X X X X X X X X X X X X X X X X X X X X X X X 5-VRC 5-MFIE tsuahxEhtiwrotalitneVlaicremmoC tsuahxEhtiwrezimonocE X X X X X X X X X X X X X X X X X X 6-AMC A01-AMC )CAL(lortnoCtneibmAwoL RDT+CPH+CPL X X X XX XX XX A31-AMC 51-CMC 61-AMC yaleRmralA+RDT+CPH+CPL tiKtratS lortnoCeusserPwoL X X X XXXXXX 81-AMCCAL&CPL XXXXX B50-BCMW C10-DCMW A80-BCMW A90-BCMW B70-BCMW tiKrekaerBtiucriC tiKtcennocsiDlluP rekaer
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