Acson international A4AC100C, Техническое руководство

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CONTROL OPERATION GUIDE
The unit is equipped with a microprocessor controller board. The microprocessor contorller is provided to
give temperature control for the system by accurately measuring the ambient temperature, and controlling
the water entering and water leaving temperature. The temperature setting in teh unit is preset in the
factory. It is not recommended to chage the setting unless necessary. A wired contoller handset is con-
nected to the microprocessor board. Every parameter setting and reading can be observed from the LCD of
the handset.
1. Handset location
The handset is located on a metal bracket behind the right door panel.
2. LED Display (microprocessor board)
The keypad LED will light up when the unit is turned on.
3. LCD display (contoller handset)
During normal operations, the LCD can display the entering water temperature, the leaving water
temperatur, the entering water setpoint temperature, compressor on or off status and outdoor air
temperature. When malfunctioning occurred, the LCD would blink. The display would show the faulty
parameter and the date and time of the occurance.
4. Controller functioning specification
There is a 3 minute delay for the compressor and fan motor to restart (default setting). During defrost-
ing,
fan motor is not running.