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11.4
Check Items for Trial Run and after Installation
1 Trial Running
2 Check Items after Installation
1.Preparation for trail running
Before completing the entire installation, power cannot be turned on
Control circuit should be connected correctly, all wire be connected firmly
Open stop valves of both thick and thin pipes
All scattered things, especially scrap and wire etc., should be taken out from the unit
Open the front panel and set the manual switch to”Run”mode.
2.Trial running method
(1) Turn on the power
(2) Press ON/OFF button of remote controller. Press mode button to select working mode such as COOL,
DRY, HEAT and FAN to see if operations are normal.
(3) Emergency running
Check Items
Items to be checked. Possible failure
Is the installation firm enough?
Unit may drop, shake or emit noise.
Is leakage test done?
It may cause insufficient of refrigerating (heating)
Capacity.
Is heat insulation sufficient?
Condensation or drop may occur.
Is drainage smooth?
Condensation or drop may occur.
Is power voltage the same as that listed in
nameplate?
Failure or burn out of parts may occur.
Is installation of circuit and pipeline correct?
Failure or burn out of parts may occur.
Is unit grounded safely?
Leakage may occur
Is wire model fits relative regulation?
Failure or burn out of parts may occur.
Is air inlet or outlet vent of indoor and outdoor unit
blocked?
It may cause insufficient of refrigerating (heating)
Capacity.
Are the length of refrigerant pipe and the charge
amount of refrigerant recorded?
Cannot handle the charging amount of refrigerant.
