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Bard WL423 Installation Instructions Manual

Manual is about: WALL MOUNTED PACKAGE AIR CONDITIONERS

Summary of WL423

  • Page 1

    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.

  • Page 2

    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 .........

  • Page 3

    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 ele...

  • Page 4

    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 s l e d o m a - 3 2 4 l w a -...

  • Page 5

    Manual 2100-400 page 3 figure 1 unit dimensions mis-1286 l e d o m h t d i w ) w ( h t p e d ) d ( - g i e h t 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 4 l w 8 4 l w 0 6 l w 5 7 0 . 2 4 2 3 4 . 2 2 5 7 8 . 4 8 8 8 . 9 8 8 . 9 2 8 8 . 5 1 8 8 . 9 2 8 8 . 3 4 0 1 . 9 1 6...

  • Page 6

    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 conduct...

  • Page 7

    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 eq...

  • Page 8

    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 ...

  • Page 9: Warning

    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 o...

  • Page 10

    Manual 2100-400 page 8 figure 3 mounting instructions mis-947.

  • Page 11: Warning

    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...

  • Page 12

    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 sup...

  • Page 13

    Manual 2100-400 page 11 figure 7 common wall mounting installations free air flow no duct ducted supply return at unit false wall installation closet installation mis-1050

  • Page 14

    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 curr...

  • Page 15

    Manual 2100-400 page 13 figure 8 unit 24v terminal board mis-1373a.

  • Page 16

    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 prop...

  • Page 17

    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 rela...

  • Page 18

    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.) temperatu...

  • Page 19

    Manual 2100-400 page 17 table 8 recommended airflow * rated cfm and esp on high speed tap. L e d o m d e t a r * m f c d e t a r * p s e d e d n e m m o c e r e g n a r w o l f r i a 3 2 4 l w 0 0 4 1 0 3 . 0 5 1 1 - 0 0 6 1 4 8 4 l w 0 5 5 1 0 2 . 5 8 2 1 - 0 5 7 1 2 0 6 l w 0 0 7 1 0 3 . 5 7 3 1 -...

  • Page 20

    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 t r a p r e b m u n n o i t p i r c s e d 5 - p o b 5 - d a f b 5 - d a f m e t a l p ff o k n a l b r e p m a d r i a h s e r f c ir t e m o r a b r e p m a d r i a h s e r ...