Installation Notices; Notices For Operation; Operating Instructions - AEC GPWC70 Operating Instructions Manual

INSTALLATION
Install this water cooled chiller on a solid foundation. The installation location should be convenient for
operation and proper distance from the cooling tower. If the cooling tower is installed outdoors, make sure it is
in an environment with good air convection, free of pollution and gas. If the cooling tower is installed at a
factory, use an exhaust fan to keep good air convection. Because the exhausted air will contain considerable
moisture, mounting the exhaust fan too close to the machine will affect the switches and the controllers.

INSTALLATION NOTICES

1. Make sure the power source voltage and Hz comply with those indicated on the instruction plate attached to
the machine.
2. Connecting power wire and grounding should conform to local regulations.
3. Use only separate power wires and power switch. The power wire diameter should not be smaller then
those applied in the electrical control box.
4. The power wire connection points should be tightened securely.
5. Make piping work according to the installation layout drawing.
thermal-keeping piping.
6. The pipe diameter for the cooling tower and circulation pump should not be smaller than the condensing
pipes. (Inlet and outlet piping are installed according to installation layout drawing.)
7. Open the ice water inlet and outlet valves, but close the water exhaust valve.
8. Connect the power wires of the cooling tower fan motor and circulation pump to the electrical control box
of water chiller.
9. Properly set the current valve on overload relay of the cooling tower.

NOTICES FOR OPERATION

1. Turn on the main power source switch.
when power is shut off.
Note: When the control box cover must be opened for inspection of the control system, turn the main power
source switch counter-clockwise. Pull out the control panel, and press the safety pin located at the side
of the main power switch.
2. When start the machine, if error code indication displays 01 (reverse phase running), then the chilling pump
is running in reverse. If this occurs, turn the power off, and change any two of the power wires.
3. Check to see if the fan motor of the cooling tower and circulation pump run to the directions as arrowhead
instruction. Do not allow them to run in the opposite direction.
4. The Chilling pump must not run if there is no water in the water tank. Start the cooling tower running for
about 15 minutes.
compressor.
5. Once the chilling pump is started, check to see if the water pressure gauge indicates over 1 kg.
6. Start the compressor running.
indication lamp will extinguish.
7. Do not set the temperature switch lower than 5℃ (except for special models)
8. When the compressor is running, the ideal conditions are when the high/low pressure gauge is in the blue
range. (High pressure range 180-250 PSI, low pressure range 45-75 PSI)
9. If and abnormal motion occurs, first stop the alarm, then make the correction. After the trouble is corrected,
press the reset key the restart the machine.
10. If your machine has no water tank provided, then it is equipped with a filter screen and flow control switch.
Make sure the water circulates in the pipe before starting the compressor. After a long period of operation,
if the water flow is too little (or the error code indication lamp displays '11'), the clean the Y shape filter
located in front of the pump at the water suction port.
11. To ensure high efficiency operation and to extend the service life of the machine, it is important to perform
monthly cleaning for the cooling tower, water suction filter screen, and make sure the heat dissipation pipes
flow and rotate smoothly.
12. If any emergency condition occurs, press the red emergency stop switch immediately. Troubleshooting
should be done only by qualified personnel.

OPERATING INSTRUCTIONS

When the control panel power is turned on, it has a safety guard
Turn on the switch for inspection.
When the water tank is fully filled with water, start the chilling pump and the
When the water temperature reaches the set temperature, the running
This is the normal condition.
Protect the ice water pipes with