Control board Adjustment, Temperature display

Control board Adjustment

Functions and operating instructions of the SLT freezer control board

●Temperature display

A large display screen indicates actual internal temperature.

A small display screen indicates current input voltage (no voltage indication for 3-phase power). Another small display screen indicates current ambient temperature.

●Prompt for working state:

“Locked” indicator light “on” indicates all the settings are locked to prevent misoperations. “Network” indicator light “on” indicates the network system is in working state. “Running” indicator light “on” indicates the compressor is running.

“Voltage stabilizing” indicator light “on” indicates the voltage stabilizer is boosting voltage. “Backup system” indicator light “on” indicates the backup system has been connected.

●Alarm indication:

In case of any fault required alarm, alarm is carried out by flashing light alarm signals and audible buzzer alarm. The former can not be cancelled until the fault clearance, while the latter can be silenced by pressing the “Cancel buzz” key.

A. “High temperature” indicator light “on” as an alarm indicates internal temperature is higher than the high-temperature set point.

B. “Low temperature” indicator light “on” as an alarm indicates internal temperature is lower than the low-temperature set point.

C. “Voltage out of given range” indicator light “on” indicates the voltage is lower or higher than the lower limit or higher limit of normal voltage range.

D. “Over-high ambient temperature” indicator light “on” indicates ambient temperature is above 30℃. E. “Sensor fault” indicator light “on” indicates a sensor fault.

F. “Power failure” indicator light “on” indicates the power failure of power circuit.

G. “Dirty condenser” indicator light “on” indicates the condenser is blocked up by dirt and must be cleaned.

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DW-150W200 specifications

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