Bryant 189BNV EVOLUTION Service Manual page 32

7. Cut the wire tires securing the compressor power harness to
the control box. Remove compressor power harness (from
control box). Replace wire tie with one supplied; do not
fasten at this time. The second wire tie for the choke on the
compressor is supplied with new harness on the replacement
compressor (highlighted with the yellow circles below).
8. Remove top two screws holding control box and remove
compressor harness (highlighted in yellow below).
9. Cut double loop wire tie on suction tube holding
compressor harness, replace with new one provided; do not
fasten at this time. Note how the compressor harness is
routed to suction tube (highlighted in yellow below).
10. Remove compressor mounting hardware.
11. Cut both suction and discharge lines with tubing cutter. Do
not use brazing torch for compressor removal as oil vapor
may ignite when compressor is disconnected.
12. Using caution and the appropriate lifting devices, remove
compressor from the unit.
13. Scratch matching marks on stubs in old compressor. Make
corresponding marks on replacement compressor.
14. Use torch to remove stubs from old compressor and install
them in replacement compressor.
NOTE: Use appropriate protection to avoid damage to
compressor terminal cover and/or terminal box sealant with
torch flame. It is intended that terminal cover remain
installed during compressor installation.
15. Using caution and the appropriate lifting device, place
replacement compressor in unit and secure with appropriate
mounting hardware.
NOTE: Use of existing or new OEM mounting hardware is
recommended.
NOTE: Compressor grommet and sleeve supplied with the
compressor should be evaluated versus OEM hardware
before assembling in unit.
16. Use copper couplings to tie compressor back into system.
NOTE: Use appropriate protection to avoid damage to
compressor terminal cover and/or terminal box sealant with
torch flame. It is intended that terminal cover remain
installed during compressor installation.
17. Remove and discard liquid line strainer and filter drier.
Replace with filter drier one size larger in capacity than the
unit being worked on (use bi- -flow) type on heat pump. See
Recommended Filter/Drier Sizes table below for appropriate
size.
18. Reinstall compressor sound blanket making sure discharge
thermistor and compressor power harness are routed as they
were from the factory.
19. Route compressor power harness to new double loop wire
tie and then to the wire retainers in tube sheet (route as they
were originally to make sure they will not contact fan blade)
and then route into control box and reinstall two control
box screws. (See image below)
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