Bryant 189BNV EVOLUTION Service Manual page 33

20. Reinstall service panel.
21. Route compressor harness choke to left hand side of the top
of control box and push in wire tie. Pull wires tight as they
enter control box and tighten second wire tie.
22. Reconnect compressor power harness to the inverter.
NOTE: Reference enclosed wiring diagrams and unit
wiring diagrams in Owner's Manual to aid in reattaching
electrical connections.
23. Triple evacuate the system below 1,000 microns.
24. Recharge unit, compensating for larger liquid line filter.
Charge compensation for oversize filter drier is listed in the
Recommended Filter/Drier Sizes table below.
25. Check system for normal operation. If unit is a heat pump,
switch from heating to cooling a few times to verify
component operation.
Replacement Procedure for Electrical Burnout
(System Clean- -up)
Mild Burnout
Perform steps 1 – 25 as specified in the Replacement Procedure for
Mechanical Failure and then perform steps as follows:
26. Run unit a minimum of 2 hours and replace liquid line filter
drier.
27. Use a test kit to determine whether acceptable acid and
moisture levels have been attained. If system is still
contaminated, repeat step 17. Continue this process until the
test kit indicates "clean" system.
28. Check system for normal operation. If unit is a heat pump,
switch from heating to cooling a few times to verify
component operation.
Severe Burnout
Perform steps 1 – 22 as specified in the Replacement Procedure for
Mechanical Failure and then perform steps as follows:
23. Clean or replace TXV.
24. Drain any trapped oil from the accumulator if used.
25. Add suction line filter drier for appropriate unit size as
indicated in Recommended Filter/Drier Sizes table below.
Mount vertical with pressure taps on both inlet and outlet.
NOTE: On heat pumps, install suction line drier between
compressor and accumulator.
26. Triple evacuate the system below 1,000 microns.
27. Recharge unit, compensating for larger liquid line filter.
Charge compensation for oversize filter drier is listed in
Recommended Filter/Drier Sizes table below.
28. Run 1 hour minimum and change liquid line drier and
suction filter.
29. Run a minimum of 2 or more hours and change liquid filter
drier again. Remove suction line filter from system (do not
replace suction line filter).
30. Use a test kit to determine whether acceptable acid and
moisture levels have been attained.
contaminated, repeat Step 22. Continue this process until
the test kit indicates "clean" system.
31. Check system for normal operation. If unit is a heat pump,
switch from heating to cooling a few times to verify
component operation.
Recommended Filter/Drier Sizes
Unit
Quantity
Capacity
1, 2, 3, 4,
1
and 5
33
If system is still
Minimum Required
Effective Desiccant Volume
Suction CU.
Liquid CU. IN.
IN.
6.5 15