User manual

50
Performing leak test
 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
 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.)
 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 ~ 25
10 ~ 12
Ø9.52 20 ~ 25
Ø12.7 25 ~ 30
Ø15.88 30 ~ 35
Ø19.05 35 ~ 40
 1N•m=10kgf•cm
S-east_MEMORY_IBIM_EN_03955A-02_EN.indd 50 2014-10-28 오후 12:01:04