H50/150 Smart – User Manual
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4.
OPERATION PROCEDURE
4.1 LCD CONTROLLER
CHANGE SETPOINT
Press SET to enter the temperature set interface, use buttons to decrease or
increase the setpoint temperature. is a transposition key. Press SET again to save and quit
the temperature set
interface.
ALARMS
A. High/low temperature alarm
Alarm code L-A will be displayed and the buzzer alarm sound when the temperature is
overshoot and 5
℃
, or more, lower than the setpoint temperature. The refrigeration system will
stop automatically.
Alarm code H-A will be displayed and the buzzer alarm sound when the temperature is
overshoot and 5
℃
, or more, higher than the setpoint temperature. The refrigeration system
will stop automatically.
Switch off the chiller and restart it.
B. Water level alarm
When the water level is lower than the limit, the water level indicator “WL" will be displayed
and the buzzer alarm sounds. The refrigeration system will stop automatically.
Fill the water tank and the compressor will restart automatically after 1 minute.
Note: the buzzer can be stopped by pressing any key.
