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Refrigerant Piping Connections
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REFRIGERANT PIPING CONNECTIONS
Checking the Indoor Unit Drain Hose for Leaks
1. Remove the indoor unit filter by pulling it up and out towards you.
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physical injury.
2. Pour a glass of water on the back of the evaporator.
3. Verify that the water flows appropriately through and out of the indoor unit and drain hose
without any leaks. Check all connection areas for leaks: the drain hose connection to the in-
door unit, the connection from the indoor unit drain hose to the field-suppled drain extension
hose, drain hose insert into wall-embedded drain system.
4. Verify that the water is flowing out and through the drain hose. If leaks are not present, but
water is not flowing out and through the drain hose, pour more water on the back of the
evaporator.
5. When satisfied that the drain system is leak-free, re-insert the filter.
Figure 63: Removing the Indoor Unit Filter.
Indoor Unit Condensate Drain Hose
Figure 64: Adding Water to the Evaporator.
Figure 65: Checking for Leaks at the Con-
nection Areas.
