Instruction/ maintenance manual of the product WA491 Bard
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INST ALLA TION INSTRUCTIONS W ALL MOUNTED P ACKAGE AIR CONDITIONERS MODELS W A381 W A423 W A484 W A491 W A602 Manual : 2100-398A Supersedes: 2100-398 File: V olume III T ab 16 Date: 05-28-02 Bard Manufacturing Company Bryan, Ohio 43506 Since 1914...Moving ahead just as planned.
Contents Figures Figure 1 Unit Dimensions ...................................... 3 Figure 2 Fresh Air Damper Assembly ................... 6 Figure 3 Mounting Instructions .............................. 8 Figure 4 Electric Heat Clearance ..............
Manual 2100-398 Page 1 GETTING OTHER INFORMA TION AND PUBLICA TIONS 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.
Manual 2100-398 Page 2 W ALL MOUNT GENERAL INFORMA TION HEAT PUMP WALL MOUNT MODEL NOMENCLATURE W A 42 3 – A 10 X N X X X A NOTE: All vent options are without exhaust capability.
Manual 2100-398 Page 3 MIS-1262 FIGURE 1 UNIT DIMENSIONS l e d o M h t d i W ) W ( h t p e D ) D ( t h g i e H ) H ( y l p p u Sn r u t e R EF G I J K L M N O P Q R S T A BCB 8 3 A W 2 4 A W 8 4 A W 9 4 A W 0 6 A W 5 7 0 . 2 42 3 4 . 2 25 7 8 . 4 88 8 .
Manual 2100-398 Page 4 j Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors. k Based on 75 ° C copper wire. All wiring must conform to NEC and all local codes. l These “ Minimum Circuit Ampacity ” values are to be used for sizing the field power conductors.
Manual 2100-398 Page 5 j Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors. k Based on 75 ° C copper wire. All wiring must conform to NEC and all local codes. l These “ Minimum Circuit Ampacity ” values are to be used for sizing the field power conductors.
Manual 2100-398 Page 6 FILTERS A one inch throwaway filter is supplied with each unit. The filter slides into position making it easy to service. This filter can be serviced from the outside by removing the service door. A one inch washable filter and two inch pleated filter are also available as optional accessories.
Manual 2100-398 Page 7 INST ALLA TION INSTRUCTIONS W ARNING 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.
Manual 2100-398 Page 8 FIGURE 3 MOUNTING INSTRUCTIONS MIS-416.
Manual 2100-398 Page 9 FIGURE 4 ELECTRIC HEAT CLEARANCE SIDE SECTION VIEW OF SUPPL Y AIR DUCT FOR W ALL MOUNTED UNIT SHOWING 1/4 INCH CLEARANCE TO COMBUSTIBLE SURF ACES. MIS-277 W ARNING A minimum of 1/4 inch clearance must be maintained between the supply air duct and combustible materials.
Manual 2100-398 Page 10 FIGURE 5 WALL MOUNTING INSTRUCTIONS FIGURE 6 WALL MOUNTING INSTRUCTIONS MIS-548 MIS-549 SEE FIGURE 3 – MOUNTING INSTRUCTIONS SUPPLY AIR OPENING RETURN AIR OPENING RETURN AIR OPENING SUPPLY AIR OPENING BOTTOM MOUNTING BRACKET.
Manual 2100-398 Page 11 FIGURE 7 COMMON WALL MOUNTING INSTALLATIONS FREE AIR FLOW NO DUCT DUCTED SUPPLY RETURN AT UNIT FALSE WALL INSTALLATION CLOSET INSTALLATION MIS-550.
Manual 2100-398 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.
Manual 2100-398 Page 13 FIGURE 8 UNIT 24V TERMINAL BOARD MIS-1373D.
Manual 2100-398 Page 14 ST ART UP IMPORTANT INSTALLER NOTE For improved start up performance wash the indoor coil with a dish washing detergent. HIGH PRESSURE SWITCH The WA381, WA484, WA491 and WA602 models are supplied with a remote reset high pressure switch.
Manual 2100-398 Page 15 SEQUENCE OF OPERATION COOLING – Circuit R-Y makes at thermostat pulling in compressor contactor, starting the compressor and outdoor motor. The G (indoor motor) circuit is automatically completed on any call for cooling operation or can be energized by manual fan switch on subbase of constant air circulation.
Manual 2100-398 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. 3. Remove screws holding fan shroud to condenser and bottom. Nine (9) screws. FIGURE 9 FAN BLADE SETTING TROUBLESHOOTING 4.
Manual 2100-398 Page 17 TABLE 9 MAXIMUM ESP OF OPERATION ELECTRIC HEAT ONLY V alues shown are for units equipped with standard 1 inch throwaway filter or 1 inch washable filter .
Manual 2100-398 Page 18 Low side pressure ± 2 PSIG High side pressure ± 5 PSIG Tables are based upon rated 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, system evacuated and recharged to serial plate instructions.
Manual 2100-398 Page 19 TABLE 11 OPTIONAL ACCESSORIES WA381-A WA381-B WA381-C WA423-A WA423-B WA423-C WA484-A WA484-B WA484-C WA491-A WA491-B WA491-C WA602-A WA602-B WA602-C t r a P r e b m u Nn o i t.
An important point after buying a device Bard WA491 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Bard WA491 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Bard WA491 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Bard WA491 you will learn all the available features of the product, as well as information on its operation. The information that you get Bard WA491 will certainly help you make a decision on the purchase.
If you already are a holder of Bard WA491, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Bard WA491.
However, one of the most important roles played by the user manual is to help in solving problems with Bard WA491. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bard WA491 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
