24
Installation Inspection and Testing
English
Installation
Step 4-1 Performing a drain leak test
1 Pour water into the drain pan.
CAUTION
• Make sure that the water does not overflow onto the
electrical connection.
2 Check for leaks at the drain connection under the cover
panel.
<Front view>
3 Make sure that the hose is draining properly at the
outdoor unit.
Step 4-2 Performing the gas leak tests
1 Before inspecting the leakage, use a torque wrench to
close the cap for the stop valve. (Comply with a tightening
torque for each size of the diameter, and tighten the cap
firmly to prevent any leakage.)
Outer diameter (mm)
Tightening torque
Body cap
(N•m)
Charging port
cap (N•m)
ø 6.35 20 to 25
10 to 12
ø 9.52 20 to 25
ø 12.70 25 to 30
ø 15.88 30 to 35
Over ø 19.05 35 to 40
( 1 N•m = 10 kgf•cm )
R-22: Thread of the screw - 7/16-2OUNF
R-410A/R-32 : Thread of the screw -1/2-2OUNF
Charging core
Tightening torque for body cap (Refer to the table)
Spindle
Tightening torque for charging port cap (Refer to the table)
2 Insert inert gas into the pipes connected to indoor and
outdoor units.
3 Test leakage on the connection parts of the indoor and
outdoor units with soap lather or liquid.
Test parts for the
indoor unit
Test parts for the
indoor unit
Installation Inspection and Testing
To Next Page
Loading...
