10
18-AC74D1-4
STEP 5
- Replace the pressure tap valve cores
after the service valves have cooled.
STEP 2
- Check for leaks by using a soapy solu-
tion or bubbles at each brazed location.
Remove nitrogren pressure and repair any leaks
before continuing.
Section 8. Refrigerant Line Leak Check
8.1 Check For Leaks
STEP 1
- Pressurize the refrigerant lines and
evaporator coil to 150 PSIG using dry nitrogen.
150 PSI
