DC Inverter U-match Series Duct Type Unit
16
4.3.4 Connecting the Pipe at the Outdoor Side Unit
Tighten the flare nut of the
refrigerant
pipe at the outdoor unit valve connector.
The tightening method is the same as that as at the indoor side.
Fig. 4.15
4.3.5 Checking the Pipe Connections for Gas Leaking
For both indoor and outdoor unit side, check the joints for gas leaking by the
use of a gas leakage detector without fail when the pipes are connected.
4.3.6 Heat Insulation on the Pipe Joints (Indoor Side Only)
Stick coupler heat insulation (large and small) to the place where connecting
pipes.
Front outlet
Coupler heat
insulation (small)
on the pipe
Liquid pipe
Gas pipe
Reference A
Coupler heat insulation
(large) on the pipe
Heat insulation pipe
Reference A:
Cover this portion with heat
insulating material also without fail
No gap
Fig. 4.16
