88-A4AC3001-1D-EN
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STEP 2 - Remove the pressure tap cap and
valve cores from both service valves.
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:
Precautions should be taken to avoid
heat damage to basepan during brazing. It is
recommended to keep the flame directly off of
the basepan.