TECHNICAL DATA
ROOM TEMPERATURE CONTROL
Room temperature control is obtained by cycling the compressor ON and OFF by means of room
temperature sensor TH
minimum
2 minutes
ON/OFF SWITCH
COMPRESSOR
SWITCH
COMPRESSOR
SET
TEMPE1°C
SET
TEMPERATURE
FAN
SET SPEED
NOTES:
1. If the compressor is turned off, the control circuit sets an automatic minimum 3 minutes delay to protect the
compressor from stalling out when trying to start against the high side refrigerant pressure.
2. If the room temperature is 1°C above the set temperature, the compressor starts working if this has been
OFF for at least 3 minutes.
3. If the room temperature is the same or under the set temperature the compressor stops working.
HEAT EXCHANGER FROSTING PREVENTION
The electronic control stops automatically the compressor each time the coil sensor TH reaches a
temperature of 1°C for 8 ÷ 10 minutes long, the compressor starts again automatically when the
temperature of heat exchanger reaches 8°C. The fan goes on working at the set speed.
minimum 10
minimum
minutes
3 minutes
ON/OFF SWITCH
COMPRESSOR
SWITCH
COMPRESSOR
HEAT EXCHANGER
TEMP.= 8 °C
HEAT EXCHANGER
TEMP.= 1 °C
FAN
SET SPEED
7
