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Operation, 2 temperature scale display switch, 3 temperature control – MovinCool Office Pro W20 Service Manual User Manual

Page 35: 4 compressor protection, Temperature scale display switch, Temperature control, Compressor protection

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Operation Section

35

8. OPERATION

8.1 Automatic Restart after Power Interruption

(Automatic Recovery Function)

• The program within the microprocessor of this unit contains a feature that automatically restarts

the unit after power is lost and then regained. The unit also has memory in order to return itself

back to the operating mode (either manual or preset program) it was in prior to the loss of power.

All preset programs are retained in the memory in the event power loss occurs.

8.2 Temperature Scale Display Switch

• When the DIP switch is set in the DOWN or “°C” position, the set point and room temperature

are displayed in degrees Celsius. “°C” is indicated on the LCD. When the DIP switch is set in the

UP or “°F” position, the set point and room temperature are displayed in degrees Fahrenheit .

“°F” is indicated on the LCD. (This is the factory default setting.)

8.3 Temperature Control

• The compressor operation cool mode is controlled by the microprocessor which receives input

signals from the room temperature thermistor (evaporator inlet air) and the setting of the

temperature set point. The temperature set point (desired room temperature) can be adjusted

by pressing the

/ buttons on the control panel. The adjustment range of the temperature set

point is 65 °F to 90 °F (18 °C to 32 °C).

8.4 Compressor Protection

• There is a time delay program within the microprocessor. This prevents a heavy load from being

applied on the compressor motor when restarting the unit cool mode after a very short period of

time. This delay is in effect any time when the compressor is turned on by either the COOL

ON/OFF button, temperature set point (thermostatic control), power interruption restart or

condensate pump (optional) operation.

Specifications:

Time delay

- 120 ± 20 sec