58
Performing leak test
f
f
Use leak tester or soapsuds on the pipe connection part after performing vacuum pump.
Check for
leakage
Check for
leakage
Test part for indoor unit
Test part for outdoor unit
f
f
Before inspecting the leakage, use a torque wrench to close the cap for the service valve.(Comply with a tightening
torque for each size of the diameter, and tighten the cap firmly to prevent any leakage.)
f
f
To check for any possible leakage, insert inert gas into the pipes connected to indoor/outdoor units and check the
connection part of the indoor/outdoor units with soap lather or liquid for leakage test.
Tightening torque for charging port cap
(Refer to the table)
Tightening torque for body cap
(Refer to the table)
R-22: Diameter of the screw - 7/16-20UNF
R-410A: Diameter of the screw - 1/2-20UNF
Charging
core
Spindle
Outer
Diameter
(mm)
Tightening torque
Body cap
(N•m)
Charging
port cap
(N•m)
Ø6.35
20 ~ 2
5
10 ~ 12
Ø9.52
20 ~ 25
Ø12.7
25 ~ 30
Ø15.88
30 ~ 35
Ø19.05
35 ~ 40
❋
❋
1 N•m = 10 kgf•cm
사우디,남아공향 FAC MEMORY 냉난방_IBIM_EN_03892A(2).indd 58
2013-04-17 오전 11:07:54
