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4.5 Connect drain hose
By default, the drain hose is attached to the left-hand side of unit (when you’re facing the back of the
unit). However, it can also be attached to the right-hand side.
1. To ensure proper drainage, attach the drain hose on the same side that your refrigerant piping exits
the unit.
2. Attach drain hose extension (purchased separately) to the end of drain hose.
3. Wrap the connection point firmly with Teflon tape to ensure a good seal and to prevent leaks.
4. For the portion of the drain hose that will remain indoors, wrap it with foam pipe insulation to
prevent condensation.
5. Remove the air filter and pour a small amount of water into the drain pan to make sure that water
flows from the unit smoothly.
4.6 Wrap piping and cables
Before passing the piping, drain hose, and the signal cable through the wall hole, you must bundle
them together to save space, protect them, and insulate them.
1. Bundle the drain hose, refrigerant pipes, and signal cable according to picture below.
2. Using adhesive vinyl tape, attach the drain hose to the underside of the refrigerant pipes.
3. Using insulation tape, wrap the signal wire, refrigerant pipes, and drain hose tightly together.
Note:
Drain hose must be on bottom
Make sure that the drain hose is at the bottom of the bundle. Putting the drain hose at the top of the
bundle can cause the drain pan to overflow, which can lead to fire or water damage.
Do not intertwine signal cable with other wires
While bundling these items together, do not intertwine or cross the signal cable with any other wiring.
Do not wrap ends of piping
When wrapping the bundle, keep the ends of the piping unwrapped. You need to access them to test
for leaks at the end of the installation process.
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