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Bard WA302 Installation Instructions Manual

Manual is about: WALL MOUNTED PACKAGED AIR CONDITIONER

Summary of WA302

  • Page 1

    Mis-656 © copyright 2002 manual no.: 2100-404 supersedes: file: volume iii , tab 16 date: 04-01-02 bard manufacturing company bryan, ohio 43506 since 1914...Moving ahead just as planned. Models: wa302 wa372 wall mounted packaged air conditioner installation instructions.

  • Page 2: Contents

    Contents i start up important installer note ......................................... 13 high pressure switch ............................................ 12 three phase scroll compressor start up information ............................................................. 13 phase monitor ..............

  • 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 ele...

  • Page 4

    Manual 2100-404 page 2 wall mount general information air conditioner wall mount model nomenclature kw wa 37 2 – a 10 x x x x x a volts & phase a - 230/208/60/1 b - 230/208/60/3 c - 460/60/3 model number revisions capacity 25 - 2 ton 37 - 3 ton ventilation options x - barometric fresh air damper (st...

  • 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 s n r u t e r e f g i j k l m n o p q r s t a b c b 2 0 3 a w 1 7 3 a w 0 2 . 8 3 5 2 1 . 7 1 3 6 5 . 0 7 8 8 . 7 8 8 . 7 2 8 8 . 3 1 8 8 ....

  • 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 eq...

  • 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 option...

  • Page 8: Warning

    Manual 2100-404 page 6 installation 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 tr...

  • 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 t e g n a r v 0 4 2 6 1 2 – 3 5 2 v 8 0 2 7 8 1 – 0 2 2 table 5 thermost...

  • 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-311 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-311 mis-311 mis-311 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 warning • a minimum of 1/4 inch clearance must be maintained between the supply air duct and combustible materials. ...

  • 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 o...

  • 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 automati...

  • 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 ...

  • 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...

  • Page 19

    Manual 2100-404 page 17 j these heater packages not suitable for installation in top outlet models. Note: top 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 m n o i t p i r c s e d 3 - p o b e t a l p ff o k n ...