Testing Of Drain Piping; Electrical Installation - Gree FGR25Pd/DNa-X Service Manual

water leakage due to dew condensation.
a) Connect the drain hose to the drain raiser pipe, and insulate them.
b) Connect the drain hose to the drain outlet on the indoor unit, and tighten it with the clamp.
◆Stand the raiser piping horizontally, and make sure it is not further than 300 mm from the base of
the drain outlet.
◆Secure a downward gradient of 1/100 or more for the drain pipe. To accomplish this, mount
supporting brackets at an interval of 1 - 1.5 m.(take the cassette type unit for example)
◆ The incline of attached drain hose should be 75 mm or less so that the drain outlet does not have
to withstand additional force.(take the cassette type unit for example)

5.4 Testing of Drain Piping

◆After piping work is finished, check if drainage flows smoothly.
◆Shown in the figure, Add approximately 1liter of water slowly into the drain pan and check
drainage flow during COOL running.

6 Electrical Installation

Duct type split Air conditioner Inverter Series
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