Cassette Type FCU
17
3 Commissioning and Maintenance
3.1 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 Sthe
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.
3.2 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-off 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.
(3) Commissioning Method
When the wired controller is unavailable, the wireless controller can be put into use as stated below.
How the start the unit with the wireless controller: power on the FCU. Under the ON state of the
controller, press the “Turbo” button within five seconds and the FUC will put into forced operation. At
this time, the operation of the unit can be controlled by this wireless controller, with the corresponding
icons displayed at the controller. Then, by pressing the ON/OFF button, commissioning will end. During
commissioning, when there is no any operation in ve minutes, commissioning also will end. After that,
stop the FCU by pressing the ON/OFF button.
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