WhisperKool XLT SERIES XLT 3000 用户手册

Page 15

XLT 020111

There are three colored lights on the left side of the thermostat:

 •  PWR (Green) – When this light is on, the unit is powered.

 •  RUN (Yellow) – When this light is on, the compressor is running. If the light is flashing, 

the unit is currently in the five-minute lockout.

 •  SET (Red) – This light flashes when the set-point temperature is changed by pressing 

one of the three control buttons (see below). It flashes once for each press of the (⇑) or 

(⇓) button, and twice when the 55 button is pressed.

When the unit is first turned on, all three lights flash slowly while the thermostat starts up. 

Once the unit completes its start-up check, the compressor is locked out for five minutes. 

During this time the RUN light will be flashing slowly (1 flash per second).

All three lights will flash rapidly if there is no probe connected to the thermostat.

To change the set-point temperature, press either the (⇑), (⇓), OR (55) buttons. The SET 

light will flash once for each 1°F the set-point is changed. This set-point will remain in 

memory until you change it.

If you forget where the unit is set, pressing the (55) button will reset the set-point to 

55°F and the SET light will flash twice. The temperature cannot be adjusted below 50°F 

or above 76°F. Attempting to set the unit outside this range will cause the SET light to 

rapidly flash.

Whenever the compressor shuts off normally, a five-minute lockout period begins and 

the RUN light will be flashing slowly (1 flash per second).

If the compressor runs for 90 continuous minutes, a five-minute defrost cycle is forced, 

during which time the compressor will not run. During this defrost cycle the RUN light 

will be flashing rapidly (2.5 flashes per second).