7. Trial operation(should be operated by professionals)
7.1 Check before trial operation
7.1aCheck the pipe system. Check the whole pipe system. Ensure the water volume in the system
is full and the air is exhausted completely. Check whether the valve is open throughout the
system and the thermal insulating of the pipe is well.
7.1b Check the power supply and distribution system. Check whether the power supply voltage is
normal, the power distribution accessory screws all tighten, supply power is in compliance
with the wiring diagram and the wire is grounded well.
7.1c Check the air cooled water chiller. Check whether any screw loose. Check the signal indicator
light(green) of the outdoor unit control panel is illuminated normally and the fault indicating
lamp(red) is illuminated. Connect the pressure gauge to the freon feed mouth for checking the
pressure during operation. Disconnect them after test is ok.
7.2 Trial operation
7.2a Press
on/off
in the remote controller, the water pump and fan start immediately.
The compressor start after the unit operates for some time. Observe and determine if there
s
any abnormal sound during operation. Stop to check the unit if there
s abnormal sound. The
unit can continue to run only when there
s no abnormal sound. Check whether the cooling
system pressure is normal at the same time.
7.2b Check whether the input power and current of the unit are compliance with the parameter in
this Instruction. If not, stop to check the unit.
7.2c Observe whether the outlet water temperature is normal.
7.2d Parameter of the remote controller has been set before leave of the factory. Never alternate
them personally.
9
6.3 Caution of Ground The internal motor protector does not protect the compressor against all
possible conditions Please be sure that the system utilizes the ground connection when installed
in the field.
6.4 Warning: To avoid fire, electric shock and other accidents, keep in mind about these tips:
A:
Only use power supply voltage indicated on the label, if you do not know the family of voltage,
contact the dealer or local power company.
B:
When you use the unit by the maximum current please view the specifications, so make sure
our home's power supply (current, voltage and cable) to meet the machine's normal load
requirements.
C:
To protect the power lines. Power lines should be fixed, so that people will not be trip over or
the lines damaged by other things. Paying particular attention to plugs, which should be easily
plug into the socket, careful the plug position.
D:
Do not overload wall plugs or extension the cable. Line overload can cause fire or electric shock.
E:
To ensure your safety, you must plug the power lines into the socket with a grounded three-phase,
and check to ensure your socket is accurate and reliable grounding.
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