Fig. 4.15
4.3.5 Checking the Pipe Connections for Gas Leakage
Use a gas leakage detector at the joints for both the indoor and outdoor units when the pipes are
connected.
4.3.6 Insulation on the Pipe Joints (Indoor Side Only)
Use the large and small insulation sleeves to insulate the gas and liquid connections, respectively.
Fig. 4.16
4.3.7 Liquid Pipe and Drain Pipe
If the outdoor unit is installed lower than the indoor unit (See Fig. 4.17)
1. A drain pipe should be above ground and the end of the pipe should not dip into water.
2. Taping pipes must be done from bottom to top.
3. All pipes are bound together by tape and secured to the wall by saddles.
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