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Conotec CNT-2003SV Manual
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Conotec CNT-2003SV Manual

Digital temperatire controller
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1. Cautions for safety
Be sure to read cautions before use for correct use.
* The specifications and exterior sizes described in this manual may be subject to change for
improving product capacity.
1. This product was not manufactured as a safety device. Therefore, in case of using it as a
controller such as for a device that may cause casualty, serious damage to peripheral
devices, and tremendous loss of property, be sure to attach double safety devices.
2. Do not do wiring or inspect or repair while power is on.
3. In case of supplying power, be sure to check a terminal number for connection.
4. This device should not be dissembled, processed, improved, or repaired.
 Before the installation of this device, understand fully how to use, safety regulations or
warnings, and be sure to use within specified related specifications or related capacities.
 Do not do wiring or install it for a motor or solenoid with great inductive load.
 During the extension of a sensor, use a shielding wire, and do not make it unnecessarily
longer.

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Summary of Contents for Conotec CNT-2003SV

  • Page 1 1. Cautions for safety Be sure to read cautions before use for correct use. * The specifications and exterior sizes described in this manual may be subject to change for improving product capacity. 1. This product was not manufactured as a safety device. Therefore, in case of using it as a controller such as for a device that may cause casualty, serious damage to peripheral devices, and tremendous loss of property, be sure to attach double safety devices.
  • Page 2  Do not use the same power supply or any part that generates arc during closing or opening directly near the power supply.  A power line should be far apart from a high-tension wire, and the device should not be installed in a place containing much water, oil, or dust.

  • Page 3: Model Configuration

     During the check of input power, be sure to cut off input power. 2. Model configuration Model Sensor Control output Temperature scope Function Solenoid valve, CNT-2003SV Celsius: Relay contact COMP, (exclusively for point defrosting, Fan -55.0℃ ~ +99.9℃ cooling) control 3.

  • Page 4: Terminal Circuit Diagram

    If pressing key for over 5 seconds, it will turn into a setter mode, and change it in the order of 4. Terminal circuit diagram  Example of relay connection ※ The relay connection capacity is less than 250VAC 2A. In case of using a load exceeding the capacity of a contact point, it can cause contact point deposition, poor contact, or relay breakage.
  • Page 5 5. Order of set value change ========================================================================...

  • Page 6: Detailed Explanation Of Functions

    6. Detailed explanation of functions : Deviation temperature setup For ON/OFF control, a certain gap between ON and OFF is required (ON/OFF gap setup) If ON and OFF operates too often, a relay or other output contact point may be damaged quickly or hunting (power generation, chattering) may occur by outside noise.
  • Page 7 Ex) When will the output be ON when set temperature is 25.0℃, set value is 1.30, and set value is 1.0℃? The current temperature increases, and when it exceeds 26.0℃ at B position, the relay is on at C position after 1 minute and 30 seconds, a set time of .
  • Page 8 Actual temperature: 25.0℃ Display screen: 28.0℃ When there is more than 3℃ difference from actual temperature is corrected from 0.0 -> -3.0, it is displayed as 25.0℃ on the screen. : defrosting stop time If the setup range is 0~250 hours of defrosting cycle, it begins defrosting. * Defrosting is stopped when it is set as 0.
  • Page 9 : Temperature for low temperature prevention setup temperature is 0, a low temperature prevention function is OFF. If the current temperature is below (set value – ), FAN is ON (During the operation of function, defrosting and FAN are output immediately regardless of the setup of fan below) : See to a table for the program setup of FAN setup (F1~F4) ※...
  • Page 10 7. Setup range and set values during delivery Set value Display Function Scope during Remarks delivery Temperature setup Deviation temperature Hysterie (deviation) setup temperature setup Output operation Minute, second delayed time setup Operation method setup COMP OFF delayed Minute, second time Difference correction between displayed...
  • Page 11 8. Product exterior size and panel processed measurement  Example of thermostat use What is a set value when a cooler is off at 0.0℃, is re-operated at 5.0℃, and defrosting output begins for 10 minutes every 4 hours, a fan is ON during COMP output, and COMP is OFF and a fan is off during defrosting? <Defrosting setup>...
  • Page 12 ※ Regarding the English-language manual, please download it at our homepage. □ Address: CONOTEC , Inc. Yunsanno 26, Geumjeong-gu, Busan CONOTEC, Inc. Bugok-dong 232-28, Geumjeong-gu, Busan Warranty service: 070-7815-8266 Customer center: 051-819-0425 -0427 Website: www.conotec.co.kr...