CHIGO CAC FCU
B. Drain test
(1) Check whether the drainpipe is smooth and joints are all sealed well before test;
(2) As for the new room, please do the drain test first, and then lay the ceiling
● Fill 2000 ml water into the water pan with filling pipe at the water testing port (Refer to Fig 17);
● Power on the unit and start the cooling operation to check whether the noise of drain pump and the drain
is normal (Basing on the length of drainpipe, it will delay about 1 minute before draining) and whether there
is water leakage at joints. Remove problems immediately, if any;
● Stop the unit and check if there is any abnormal situation 3 minutes later. In case of irrational layout of
drainpipe, the alarm lamp of the control will flash for the much flow back or the water will flow out from
water pan;
● Cut off the power and empty the seeper, then install back the cover;
(3) The drain plug at the bottom of the main body is used for emptying the water of the water pan in repairing
of problems. When the unit is running , put the plug in position to avoid of water leakage.
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