Temperature Controller Manual
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 1s 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 LED is on, the compressor is working.
•Constant temperature: When the refrigerant LED is off, the compressor has stopped.
•Delay: When the refrigerant LED flashes, the compressor stops.
•Defrost: When the defrost LED is on, the compressor and fan stop and the heater works.
•Evaporator fan: When the fan LED is 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,
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