CVH8, HVH8, TVH8, VA9, HVA9, TVA9: APPLICATION GUIDELINE & SERVICE MANUAL
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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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. If system is still 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
Capacity
Quantity
Minimum Required
Effective Desiccant Volume
Liquid CU. IN. Suction CU. IN.
1, 2, 3, 4, and 5
1
6.5
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