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STEP 3 - Purge the refrigerant lines and indoor
coil with dry nitrogen.
STEP 4 - Wrap a wet rag around the valve body
to avoid heat damage and continue the dry nitro-
gen purge.
Braze the refrigerant lines to the service valves.
Continue the dry nitrogen purge. Do not remove
the wet rag until all brazing is completed.
Important: Remove the wet rag before stopping
the dry nitrogen purge.
Note: Install drier in Liquid Line.
NOTE:
NOTE: Precautions should be taken to avoid
Precautions should be taken to avoid
heat damage to basepan during brazing. It is
heat damage to basepan during brazing. It is
recommended to keep the flame directly off of
recommended to keep the flame directly off of
the basepan.
the basepan.
STEP 5 - Replace the pressure tap valve cores
after the service valves have cooled.
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88-A4AC6001-1D-EN
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