Vertical Exposed Fan Coil Unit
23
4 Commissioning and maintenance
4.1 Inspection after installation
Item Possible consequence Inspection
Is the main unit installed securely?
The unit may fall down, vibrate or
generate noise.
Is the leak test performed? The unit fails to work normally.
Is the unit insulted properly?
It may generate condensate and water
drops.
Does drainage go smoothly?
It may generate condensate and water
drops.
Does the power voltage comply with the
nameplate?
Errors may rise or some component may
be damaged.
Are wiring and piping performed properly?
Errors may rise or some component may
be damaged.
Is the unit grounded reliably? It would lead to electric leak.
Are the electric lines sized properly?
Errors may rise or some component may
be damaged.
Is there foreign matter at the air inlet or
outlet?
It would lead to poor cooling capacity.
4.2 Trial run
(1) Preparation before trial run
y
Do not power the unit on until all installation has been nished.
y
Control and power lines are connected correctly and tightly.
y
All cut-o valves should be opened.
y
All odds and ends should be removed .
(2) Trial run method
y
Power on it and press the ON/OFF button.
y
Press the “Mode” button to select the desired running mode, cooling, heating or supply. Then,
observe it to see if it can work normally.
4.3 Maintenance requirement
(1) Unplug the unit before cleaning; otherwise it would lead to electric shock or injures.
(2) Do not rinse the unit with water; otherwise it would lead to electric shocks.
(3) The volatile liquid, like thinner or petrol, would damage the outer casing of the unit, therefore the outer
casing should be cleaned with the soft dry cloth or wet cloth with neutral detergent.
(4) Do not open the lter of the unit except the qualied servicemen.
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