STC-2304 Refrigeration Defrost Thermostat with Fan Control


China STC-2304 Compact Panel Defrost Thermostat - wholesale price, user manual, troubleshooting, wiring diagram, Setting guide video, and alternatives
STC-2304 is a high-low limit digital thermostat with 3 output relays to wiring and control a Refrigerator & an evaporation Defrost & an evaporation Fan, whose power supply status is changeable by the embedded micro-computer. It is typically suited to the low-temperature freezer rooms that are easy to frost on its evaporator and require more precise control over the working state of the wind turbine.

Minimum Bulk order Amount: 200 USD


The evaporator defrosting control function of STC-2304 is the same as the STC-2303 defrost thermostat. They utilize the “time setting” and the “stop-defrosting temperature value” to reach the defrosting automatically and smartly; Besides, it can control the evaporator fan over time and offer 5 types of fan working modes options.

Features

  • 6 touch-sensitive keys;
  • The power on/off temperature determines the target temperature range, set them directly by shortcut keys;
  • Embed NVM to auto memory existing parameters, resume all data once power back, need not configure it again;
  • Adjustable Temperature Calibration;
  • Control the refrigeration by temperature and the editable compressor protection delay time; the compressor works 15mins and stops 30 mins once sensor error;
  • Control the defrosting by time and temperature, and offer 2 options of time count mode for the defrosting cycle, and the artificial forced-defrost available;
  • Supply editable water dripping time after defrosting;
  • Control the over-temperature alarm of the freezer room by time and temperature, and offer two separate alarm delay time options to the controller 1st-time power on and the remaining time;
  • The alarm by error code on display, and the buzzer screams;
  • Control the fan by the Time & Temperature, and
    • Offers 2 types of time count modes for the fan cycle;
    • Offers 2 types of time count modes for the alarm delay time.

Front Panel of STC-2304 Defrost Thermostat

 

 


Wiring Diagram of STC-2304 Defrost Thermostat

STC 2304 digital temperature controller wiring diagram
STC 2304 digital temperature controller wiring diagram
Haswill Electronics STC 2304 Temperature Controller 4 wiring photo
Haswill Electronics STC 2304 Temperature Controller 4 wiring photo

Function Menu of STC-2304 Defrost Thermostat

CategoryCodeFunctionMinMaxDefaultUnit
Defrosting F1Defrosting Lasting Time112010Min
F2Defrosting Cycle / Interval Time 01206Hour
F3Defrosting Cycle / Interval Time Count Mode011°C
0The sum working time of the controller
1The sum working time of the compressor
F4Water dripping Time01203Min
F5Defrosting by, 010Min
0:Electric-Thermal
1:Hot Gas
F6Defrosting Stop Temperature-405010°C
FanF7Fan mode-180300dS
F8Delay Time for the fan 1st time running
(count time from the moment of the F4 over)
030030S
TempF9Delay Time for the compressor Protection0100°C
Alarm F10Alarm Delay time from the controller power on0.124.02.0Hour
F11Alarm Over-Temperature Value0505°C
F12Alarm Delay time after F10
(count time from the moment of the F10 over)
012010Min
TempF13Temperature Calibration-10100°C
Unlike STC-2301/2/3 could be a heater controller, The F14 option is not available in this unit since it was designed as the refrigeration thermostat with the defrosting managing and fan controlling function.

How to set the temperature for load starts/stops?

  • [On Temp] Key: touch this to check/edit the existing [Temperature value to Turn-on the Load], the character “On Temp” lighting;
  • [Off Temp] Key: touch this to check/edit the existing [Temperature value to Turn-off the Load], the character “Off Temp” lighting.


User Manual of STC-2304 Defrost Thermostat

Please be aware that the English page only displays the English version of the user manual, please switch to the corresponding language page to download the PDF manual in other languages.


Please learn what this unit can not do:

  • It can not control the over-temperature alarm of the defrosting unit; please check the STC-9100 instead.
  • It can stop the fan by temperature but can not start the fan according to the evaporator temperature; please check the STC-9200 as an alternative.

 


FAQ of Haswill Compact Panel Thermostat

  1. How to avoid buying Inferior temperature controllers?
    here is a simple method, that does not require professional knowledge.
  2. How to get the price?
    Click the inquiry button, and finish the form, You will get a reply in a few hours.
  3. Celsius VS Fahrenheit; and Voltage
    All of our digital temperature controllers default in Celsius degrees, and part of them is available in Fahrenheit with different minimum order quantities;
    Besides the 220V AC (±15%), these electronic temperature controllers also are available in 110V AC, 12V DC, and 24V DC (110 / 24 /12 Volts ).
  4. Parameter Comparison
    Catalog of Compact panel digital temperature controllers
  5. Package
    The standard package could load 100 PCS / CTN digital temperature controllers.
  6. Accessories
    We suggest you buy 5% ~ 10% spare parts like clips and sensors as stock.
  7. Warranty
    Default one-year (extendable) quality warranty to all our controllers, We will offer a free-of-charge replacement if found a quality defect.
  8. Customization Service
    If you can not find a suitable temperature controller on this website, We will help you develop it based on our existing mature products ;
    Thanks to China's complete set of related industry chains, our customized thermostats are of high quality and low price;
    the MOQ is usually from 1000 pieces. don't hesitate to contact us for customization services.

or more questions? Click FAQs



Minimum Bulk order Amount: 200 USD



Voltage

Regarding the voltage of this electronic temperature controller

  • 220V AC (±15%) as the default, Without MOQ (minimum order quantity) requirement, it is ok even you want to buy 1 piece;
  • 110V AC (±15%) with MOQ 200 PCS;
  • 24V DC with MOQ 50 PCS;
  • 12V DC Without MOQ requirement, just 1 PCS is ok, it is ok even you want to buy 1 piece;

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