Section 8. Refrigerant Line Leak Check; Section 9. Evacuation - Trane 4TTR6024N Installation And Operation Manual

STEP 5 - Replace the pressure tap valve cores
after the service valves have cooled.

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.
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 9. Evacuation

9.1 Evacuate the Refrigerant Lines and Indoor Coil
Important: Do not open the service valves until
the refrigerant lines and indoor coil leak check
and evacuation are complete.
STEP 1 - Evacuate until the micron gauge reads
no higher than 350 microns, then close off the
valve to the vacuum pump.
18-AC98D1-7D-EN
150 PSIG
0350
Microns
ON OFF
9