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Bard MIS-656 manual

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Table of contents for the manual

  • Page 1

    MIS-656 © Copyright 2002 Manual No.: 2100-404 Supersedes: File: V olume III , T ab 16 Date: 04-01-02 Bard Manufacturing Company Bryan, Ohio 43506 Since 1914...moving ahead just as planned. Models: W A302 W A372 WALL MOUNTED PACKAGED AIR CONDITIONER INST ALLA TION INSTRUCTIONS[...]

  • Page 2

    Contents i Start Up Important Installer Note ......................................... 13 High Pressure Switch ............................................ 12 Three Phase Scroll Compressor Start Up Information ............................................................. 13 Phase Monitor ....................................................... 13 Se[...]

  • Page 3

    Manual 2100-404 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 [...]

  • Page 4

    Manual 2100-404 Page 2 WALL MOUNT GENERAL INFORMA TION AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE KW W A 3 7 2 – A 1 0 X XXXXA VOL TS & PHASE A - 230/208/60/1 B - 230/208/60/3 C - 460/60/3 MODEL NUMBER REVISIONS CAP ACITY 25 - 2 T on 37 - 3 T on VENTILA TION OPTIONS X - Barometric Fresh Air Damper (Standard) B - Blank-off Plate M - Motoriz[...]

  • Page 5

    Manual 2100-404 Page 3 FIGURE 1 UNIT DIMENSIONS TABLE 2 DIMENSIONS OF BASIC UNIT (NOMINAL) 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 JKL M N O P Q R S T A BCB 2 0 3 A W 1 7 3 A W 0 2 . 8 35 2 1 . 7 13 6 5 . 0 78 8 . 78 8 . 7 28 8 . 3 18 8 . 7 20 0 . 0 40 5 . 8 15 7 . 5 23 9 . 7 15 7 . 6 25 7 . 8 25 2 [...]

  • Page 6

    Manual 2100-404 Page 4 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 installe[...]

  • Page 7

    Manual 2100-404 Page 5 FILTERS A 1 inch throw away filter is suppled 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 1 inch washable filter and a 2 inch pleated filter are also available as optional accessories. The internal filter brackets are a[...]

  • Page 8

    Manual 2100-404 Page 6 INST ALLA TION INSTRUCTIONS 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. W ARNING Fire haz[...]

  • Page 9

    Manual 2100-404 Page 7 NOTE: The voltage should be measured a the field power connection point in the unit and while the unit is operating at full load (maximum amperage operating condition.) TABLE 4 OPERATING VOLTAGE RANGE P A TE G N A R V 0 4 26 1 2 – 3 5 2 V 8 0 27 8 1 – 0 2 2 TABLE 5 THERMOSTAT WIRE SIZE r e m r o f s n a r T A VA L Fe g u [...]

  • Page 10

    Manual 2100-404 Page 8 FIGURE 3 MOUNTING INSTRUCTIONS NOTE: It is recommended that a bead of silicone caulking be placed behind the side mounting flanges and under the top flashing at the time of installation. MIS-31 1 4 9/16[...]

  • Page 11

    Manual 2100-404 Page 9 FIGURE 4 WALL-MOUNTING INSTRUCTIONS MIS-549 FIGURE 5 WALL-MOUNTING INSTRUCTIONS MIS-548 MIS-31 1 MIS-31 1 MIS-31 1 SEE FIGURE 3 – MOUNTING INSTRUCTIONS SEE UNIT DIMENSIONS, FIGURE 1, FOR ACTUAL DIMENSIONS SEE FIGURE 1 FOR DUCT DIMENSIONS[...]

  • Page 12

    Manual 2100-404 Page 10 MIS-550 FIGURE 6 COMMON WALL-MOUNTING INSTALLATIONS[...]

  • Page 13

    Manual 2100-404 Page 11 Side section view of supply air duct for wall mounted unit showing 1/4 inch clearance to combustible surfaces. FIGURE 7 ELECTRIC HEAT CLEARANCE MIS-277 WARNING W ARNING • 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 ductin[...]

  • Page 14

    Manual 2100-404 Page 12 MIS-1373C FIGURE 8 LOW VOLTAGE WIRING[...]

  • Page 15

    Manual 2100-404 Page 13 IMPORTANT INSTALLER NOTE For improved start-up performance, wash the indoor coil with a dishwasher detergent. HIGH PRESSURE SWITCH The WA372 models are supplied with a remote reset high pressure switch. If tripped, this pressure switch may be reset by turning the thermostat off then back on again. THREE PHASE SCROLL COMPRESS[...]

  • Page 16

    Manual 2100-404 Page 14 Alarm Relay Output Alarm terminal is output connection for applications where alarm relay is employed. This terminal is powered whenever compressor is locked out due to HPC or LPC sequences as described. NOTE: Both high and low pressure switch controls are inherently automatic reset devices. The high pressure switch and low [...]

  • Page 17

    Manual 2100-404 Page 15 TROUBLESHOOTING The suction line temperatures in Table 8 are based upon 80ºF dry bulb/67ºF wet bulb (50 percent R.H.) temperature and rated airflow across the evaporator during cooling cycle. REMOVAL OF FAN SHROUD 1. Disconnect all power to unit. 2. Remove the screws holding both grills – one on each side of unit – and[...]

  • Page 18

    Manual 2100-404 Page 16 j Low side pressure ± 2 psig High side pressure ± 5 psig Tables are based upon rated CFM (airflow) across the evaporator coil and should be found under section titled "Refrigerant Charge" elsewhere in manual. If there is any doubt as to correct charge being in the system, the charge should be removed, system evac[...]

  • Page 19

    Manual 2100-404 Page 17 j  These heater packages not suitable for installation in top outlet models. NOTE: T op outlet models are available only as factory built. WA302-A WA372-A WA302-B WA372-B WA302-C WA372-C TABLE 13 OPTIONAL ACCESSORIES L E D O MN O I T P I R C S E D 3 - P O Be t a l P f f O k n a l B XXXX 3 - D A F Br e p m a D r i A h s e [...]