Use and Care Manual

14
When connectling flare nuts, smear both inside and outside with refrigeration oil, screw it
hand tight and then tighten it with the spanner and torque wrench.
Refer to Table 4.5 to check for proper torque(Over tighting will damage
the nut and lead to leakage).
Examine and test the connection pipe for leaks, and then insulate the connection pipe, as
shown in the Fig.4.12.
Use the medium-sized insulaton strip to insulate the coupler of the gas pipe.
Fig.4.12
Table 4.5 Flare nut tightening torque
Pipe Diameter Tightening Torque
6mm(1/4inch) 15-30N·m(11-22ft.-1bs.)
9.5mm(3/8 inch) 35-40N·m(26-29ft.-1bs.)
12.7mm(1/2 inch) 45-50N·m(33-37ft.-1bs.)
16mm(5/8 inch) 60-65N·m(44-48ft.-1bs.)
Be sure to connect the gas pipe when liquid pipe is connected.
U-match Series Cassette Type Unit
Insulaton
Insulaton
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