Page 2014 - Workshop Manual - Tunland (2017)
P. 2014
61-8 HEATER AND AIR CONDITIONING - HEATING & AIR-CONDITIONING SYSTEM
If not, replace the compressor assembly.
2 . Heater
Add some coolant into the heater and check for leakage.
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3 . A/C Pipe
Leakage test: Fill the pipes with dry helium, with 3.5 MPa in the high-pressure pipe
and 1.67 MPa in the low-pressure pipe. Immerse the pipes in water for 5 minutes and
check for bubbles.
4 . Evaporator
Leakage test: Inject the pressure of 1.67 MPa into the evaporator, immerse it in water
for 5 minutes and check bubbles.
5 . Condenser
Leakage test: Inject the pressure of 3.5 MPa into the condenser, immerse it in water
for 3 minutes and check bubbles.
