a. Check the exterior wiring connection of chiller and the install situation of sensor according to
the electrical control principle diagram.
b. Tighten the screws of each electrical organ in control cabinet, tighten connect port of
compressor wiring connect box.
c. Check the insulation performance of each compressor and fan motor.
d. Turn on the main control circuit power, the touch screen should enter "start display"
automatically, if there is no display in the touch screen, please check the connect wire of AC220V
power and DC24V power.
e. Confirm the parameter setting display.
a. The electrical control cabinet should have well ventilation, the ambient temperature may be less
than 45℃, ambient relative humidity is less than 90%. The control cabinet is forbidden to be exposed
b. Object should not be put in the control cabinet.
c. Maintain the air switch and AC contactor of control cabinet at least once a year.
d. User should check if the exterior wiring connection of control board and touch screen in the
control cabinet is tighten. If there is any abnormal, please inform the factory.
11.2.7 Install instruction
a. Install the receive wire of power supply: drive wire(3-phase and 4-wire: for 3 live wires and one
earth wire) of two compressor.
Note: the chiller must be earthed reliably to insure the safety of operate person.
b. Install the temperature-inspect organ of cycling water outlet/inlet: the inspect point is on the
exterior pipe(not exceed 450mm from chiller). Screw connector should be welded vertically on the
inspect point. Each wiring connection of sensor should be processed according to the wiring diagram
c. Install the cycling water, water flow detect organ: the flow detect organ(target flow controller) is
installed on the cycling water pipe(not exceed 200mm from chiller). Select normal open(open when
there is no water) when make wiring connection.