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Indoor Unit Installation Instructions
Preparing the Refrigerant Piping of the Indoor Unit
The piping "pigtails" pre-attached to the indoor unit can be run in 3 different ways as shown
in the illustration. Decide which type of configuration is most suitable before continuing.
By default, it is routed for a left side exit as shown in #1. This method can either use the left
side knockout for a side exit, or a wall hole can be drilled on the left side of the unit's rear.
Routing it straight through the back of the system (#2) will facilitate the connections to the
copper pipe extensions to be made outside. This is recommended to simplify the process.
#3 is a right-side exit, but is not recommended as it involves a 180° bend of the piping, which
increases the risk of kinking or collapsing the lines dramatically. Bend slowly and cautiously.
If a side-exit is chosen, there are knock-out panels on either side of the unit that can be cut
out along the groove to provide a notch for the pipe to exit from. Use a cutter to do this.
For the method chosen, run the piping in the direction of the wall hole. Bind the copper
pipes, drain line, and power cables together with tape, with the drain pipe at the bottom so
that water can flow freely. Ensure that the bundle is exiting at a continuous downward pitch.
3
2
1
CAUTION
• Do not remove the cap from the pipe until it is time
to connect it, to avoid dampness or dirt from entering.
• If the pipe is bent/pulled too often, it will become stiff.
Do not bend the pipe more than three times at one
point. Be extremely careful not to kink any piping.
• When extending the coiled copper pipes, straighten
them by unwinding gently, as shown in the picture.
Page 26
Downward
Inclination
NO
YES
Unwind the coil gently
rather than pulling at ends
6
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