24
LIFT
STEP 7 - Braze refrigerant line connections.
Note:
The suction line must be insulated prior to
brazing the line set to the air handler stubs.
1. Pull back the insulation before brazing the suc-
tion line.
2. Wrap the Vapor Sensor with wet rag.
3. Braze the refrigerant line connections.
Important:
Care must be taken during solder cap
removal and brazing to avoid damage to unit compo-
nents.
LIFT
STEP 8 - Pressurize the refrigerant lines and evapo-
rator coil to 150 PSIG using dry nitrogen.
150 PSI
STEP 9 - Check for leaks by using a soapy solution
or bubbles at each brazed location.
LIFT
Wet Rag on
Vapor Sensor
