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Bard SH261 Installation Instructions Manual

Summary of SH261

  • Page 1

    Manual 2100-409c page 1 of 25 installation instructions wall mounted package heat pumps models sh261 sh311 manual : 2100-409c supersedes: 2100-409b file: volume iii tab 17 date: 07-20-06 bard manufacturing company, inc. Bryan, ohio 43506 since 1914...Moving ahead just as planned. © copyright 2003.

  • Page 2

    Manual 2100-409c page 2 of 25 contents figures figure 1 unit dimensions ...................................... 5 figure 2 fresh air damper assembly ................... 8 figure 3 mounting instructions ............................ 10 figure 4 electric heat clearance ......................... 11 figur...

  • Page 3

    Manual 2100-409c page 3 of 25 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. Natio...

  • Page 4

    Manual 2100-409c page 4 of 25 wall mount general information heat pump wall mount model nomenclature sh 26 1 – a 08 x x x x x b note: for 0kw and circuit breakers (230/208 v) or pull disconnects (460 v) applications, insert 0z in the kw field of model number. Ventilation options x – barometric fresh...

  • Page 5

    Manual 2100-409c page 5 of 25 figure 1 unit dimensions.

  • Page 6

    Manual 2100-409c page 6 of 25 table 1 electrical specifications 1 maximum size of the time delay fuse or hacr type circuit breaker for protection of field wiring conductors. 2 based on 75° c copper wire. All wiring must conform to the national electrical code and all local codes. 3 these “minimum ci...

  • Page 7

    Manual 2100-409c page 7 of 25 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...

  • Page 8

    Manual 2100-409c page 8 of 25 fresh air intake all units are built with fresh air inlet slots punched in the service panel. If the unit is equipped with the fresh air damper assembly, the assembly is shipped already attached to the unit. The damper blade is locked in the closed position. To allow th...

  • Page 9

    Manual 2100-409c page 9 of 25 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 wit...

  • Page 10

    Manual 2100-409c page 10 of 25 figure 3 mounting instructions.

  • Page 11

    Manual 2100-409c page 11 of 25 figure 4 electric heat clearance warning a minimum of 1/4" clearance must be maintained between the supply air duct and combustible materials. This is required for the first three (3) feet of ducting. It is important to insure that the 1/4" minimum spacing is maintaine...

  • Page 12

    Manual 2100-409c page 12 of 25 figure 5 wall mounting instructions see figure 3 – mounting instructions figure 6 wall mounting instructions see unit dimensions, figure 1, for actual dimensions.

  • Page 13

    Manual 2100-409c page 13 of 25 figure 7 common wall mounting installations.

  • Page 14

    Manual 2100-409c page 14 of 25 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 ...

  • Page 15

    Manual 2100-409c page 15 of 25 optional outdoor thermostat applications since most equipment at the time of manufacture is not designated for any specific destination of the country and are installed in areas not approaching the lower outdoor temperature range, outdoor thermostats are not factory in...

  • Page 16

    Manual 2100-409c page 16 of 25 electric heat hold-off (see figures 11 and 12) in other applications, it is desirable to disable the operation of the electric heat until outdoor temperatures have reached a certain design point. This won't allow the electric heat to come on as second stage heating unl...

  • Page 17

    Manual 2100-409c page 17 of 25 thermostat indicators 8403-049 (1f93-380) thermostat: in heating and cooling, the led will illuminate green for first stage and yellow for second stage. The same led will illuminate red for emergency heating mode and will flash red if there is a malfunction in the syst...

  • Page 18

    Manual 2100-409c page 18 of 25 start up phase monitor all units with three phase compressors are equipped with a 3 phase line monitor to prevent compressor damage due to phase reversal. The phase monitor in this unit is equipped with two leds. If the y signal is present at the phase monitor and phas...

  • Page 19

    Manual 2100-409c page 19 of 25 heat pump heating cycle now in operation. The second option has no “auto” changeover position, but instead energizes the reversing valve solenoid constantly whenever the system switch on subbase is placed in “heat” position, the “b” terminal being constantly energized ...

  • Page 20

    Manual 2100-409c page 20 of 25 figure 13 defrost control board.

  • Page 21

    Manual 2100-409c page 21 of 25 troubleshooting solid state heat pump control troubleshooting procedure 1. Turn on ac power supply to indoor and outdoor units. 2. Turn thermostat blower switch to fan on. The indoor blower should start. (if it doesn’t, troubleshoot indoor unit and correct problem.) ta...

  • Page 22

    Manual 2100-409c page 22 of 25 checking temperature sensor outside unit circuit 1. Disconnect temperature sensor from board and from outdoor coil. 2. Use an ohmmeter and measure the resistance of the sensor. Also use ohmmeter to check for short or open. F r f r f r -25.0 -24.0 -23.0 -22.0 -21.0 -20....

  • Page 23

    Manual 2100-409c page 23 of 25 fan blade setting dimensions shown in figure 14 are the correct fan blade setting dimensions for proper air delivery across the outdoor coil. Any service work requiring removal or adjustment in the fan and/or motor area will require that the dimensions below be checked...

  • Page 24

    Manual 2100-409c page 24 of 25 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...

  • Page 25

    Manual 2100-409c page 25 of 25 table 11 optional accessories sh261-a sh261-b sh261-c sh311-a sh311-b sh311-c 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 f f o k n a l b x x x x x x 3 - d a f b r e p m a d r i a h s e r f c i r t e m o r a b x x x x x x 3 - d a f m r e p m a d r i a h s e r f...