Installation guide

Temperature Controller Manual
Refrigerant L_D
_a_ LED i O_fro_ LED
Feature of Function
This temperature controller adopt world well-
known brand SCM. It is reliable and durable. The
relay is exclusively used for compressor loads which
make it safer. The way of controlling temperature is
return type and easy to operate.
Mine-sized and integrated intelligent control, it is
applicable to the compressor of one H.P. Suit for a
ventilated freezer.
Main functions
• Temperature display (Celsius/Fahrenheit
degrees)
• Temperature control
• Evaporator fan control (parallel with
compressor or continuous running changes)
• Manual, automatic defrost by electric heater
• Time or temperature setting to end defrost
• The cold-room sensor temperature can lock
during defrost
• Parameter locking
• The factor default resumption
• Offset on sensor temperature
• Self testing
Specification
• Power supple: 12V ~, 50/60Hz; Power
consumption: < 5W
• Range of temperature displayed:- 45_45°C
(-40_120°F)
• Range of set temperature: -45_45°C
(-40_120°F)
• Temperature sensor: NTC, double sensor.
• Output contact capacity for compressor: N.O.
20A/250V~; 50/60Hz. The inrush current for
compressor control may be 20A instead of 8A
during the period of ls at start. (applicable to 1
H.P. compressor if more connected to AC
contactor)
• Output contact capacity for Evap. Fan: N.O.
20a/250V~; 50/60Hz.
• Main controller panel dimension 78x35x76mm.
Mounting dimension: 71:29mm
Indicator
• Refrigerant: When the refrigerant LEDis on, the
compressor is working.
• Constant temperature: Whenthe refrigerant
LED is off, the compressor has stopped.
• Delay: When the refrigerant LEDflashes, the
compressor stops.
• Defrost: When the defrost LED is on, the
compressor and fan stop and the heater works.
• Evaporator fan: When the fan LEDis on, the fan
is working.
Front Panel Operation
• Set temperature: Press _ button, the set
temperature is displayed; Press or button to
modify and store the displayed value, press
button to exit the adjustment and display the
cold-room temperature.
• Manual start/stop defrost: Press _ button and
hold for 6 seconds to defrost or stop defrost.
• Display the evaporator temperature: Press
button and hold for 6 seconds. The evaporator
temperature will be displayed. After 10
seconds, the cold-room temperature is resumed
to be displayed.
Parameter Setup
Indication for setting parameter: The parameter
can be adjusted only after correct PA has been
entered. All parameters can only be checked,