DIGITEN DTC315 Electronic Temperature Controller Thermostat User Manual

DIGITEN DTC315 Electronic Temperature Controller Thermostat

INTRODUCTION

This thermostat is a simple-stage, electronic temperature controller. The large. The lighted LCD screen display is easy to read. The case is designed with fireproof ABS material for human engineering. The temperature sensor is waterproof with high quality, high-accuracy.

Features

• Large LCD screen
• Display the sensed temperature, setting temperature, and custom icons on the display indicate working mode.
• Support reading with Centigrade or Fahrenheit unit;
• Easy to use and program
• Only 2-step setting for your application, and plug and play design.
• With a temperature com, item function
• Allow users to adjust measuring accuracy based on different probes, etc.
• Delay starting protection
• Protect refrigerating compressor lifetime, avoid compressor to start frequently.
• High and k>w temperature plants are available ;
• Over-temperature and sensor faults along

Panel instructions

• PV: Current Temperature.
• RV: Run Temperature
• SV: Stop Temperature
• AH: High Temperature Alarm
• AL: Low Temperature Alarm
• DP: Time of Compressor Delay Starting
• CA: Temperature Calibration
• Mode: Cooling: Working Mode
• Mode: Heating: Working Mode

View Setting Parameters
When the controller is working normally, short press SET and you can look at the parameter values in order.

Setting Instructions

How to change temperature unit
To convert to Fahrenheit unit, press the A and V buttons simultaneously. Press them again to return to Celsius unit.

Notice: When temperature unit has been changed, all the selling value will be recovered to factory settings.

Setup Flow Chart

• Setting the RUN temperature (RV) and STOP temperature(SV)
• Long press the SET button until RV value is 20.0: flashing
• Press A and V to adjust the temperature value
• Press the SET button to set SV value long press the SET button to save and exit.

Setting Other Functions
To set Low-temperature Alarm(AL). High-temperature Alarm(AH) Calibration(CA). Compressor Delay Starting(DP). use the method below.

• Long press the SET button until · -YD.□· flashing
• Press A and V to adjust the temperature value
• Press the SET button to set the next function
• Long press the SET button to save and exit.

For example
Users want to run cooling equipment when RV=28’C, and stop cooling equipment when PV=22’C, DP=3 minutes.

• Long press the SET button until 2.0! flashing
• Press A and V to change the RV to 28’C
• Press SET button to set Y.O: stop temperature(SV)
• Press A and V to change the SV to 22-C
• Long press the SET button to save and exit.
• Connect the cooling equipment to the outlet

How to restore default settings
Keep pressing the SET key until connect the power to this device, controller will restore the factory setting after the BI- -sound.

Function range and the default setting

LCD Backlight Control

• The screen defaults to be always on with the backlight.
• Press the A and SET buttons simultaneously for about 3 seconds until the symbol ◊ disappears, and the LCD light will shut off automatically after 30 seconds.
• Press the A and SET buttons simultaneously for about 3 seconds until the LCD appears ◊, the led will stay on.

Function Introduction

Cooling Mode
Set RV(RUN temperature)> SV (STOP temperature), and the temperature controller enters cooling mode. The LCD will display

MODE COOLING When PV(measuring temperature) is higher than RV, the cooling equipment start working, and the run LED is turned on. When PV(measuring temperature) reaches to SV (STOP temperature), the cooling equipment stop working, and the stop LED is turned on.

Note: When the run LED is flashing, it means the cooling equipment enters the compressor delay protection function.

Heating Mode
Set RV(RUN temperature) < SV (STOP temperature). the temperature controller enters heating mode. The LCD will display

MODE HEATING: When PV(measuring temperature) is lower than RV, the heating equipment start working, and the run LED is turned on. When PV(measuring temperature) reaches to SV (STOP temperature), the heating equipment stop working, and the stop LED is turned on.

High/Low-Temperature Alarm (AH/AL)
When measuring temperature (PV) ~ high-temperature alarm value (AH), a high-temperature alarm will be triggered, the buzzer will alarm with tone · bi-bi-bi”, press any key to cancel the alarm sound, if the user wants to close the alarm, please reset the AH value or wait until PV is lower than AH. When measuring temperature (PV) ::;; low-temperature alarm value (AL), the low-temperature alarm will be triggered, the buzzer will alarm with tone ·bi-bi-bi. press any key to cancel the alarm sound, if the user wants to close the alarm, please reset the AL value or wait until PV is more than AL.

Time of Compressor Delay Starting (DP)
Under refrigeration mode, after power on, if the measuring temperature (PV) is higher or equal to Run Temperature (RV), the cooling equipment won ·1 start refrigeration immediately, but it will wait for a delay time(DP) to work. When the time interval between two refrigeration operations is larger than the preset delay time, the equipment will start refrigeration immediately; when the time interval between two refrigeration operations is less than the preset delay time. the equipment won ·1 start refrigeration until achieve the preset delay time. The delay time will be recorded at the moment that refrigeration stops.

Temperature Calibration (CA)
When there is a deviation between the current temperature and the actual temperature. use the temperature calibration function to correct the current temperature and actual temperature. Corrected Temperature = Temperature ( before Calibration) + Corrected Value(corrected value could be positive value, 0, or negative value)

Display in Fahrenheit or Centigrade unit (CF)
Users can select a display with Fahrenheit or Centigrade temperature values according to their own habits. The default setting is displayed with a Centigrade temperature value.

Application
The thermostat can be used to control a wide variety of simple-stage refrigeration and heating, or HVAC equipment. Typical applications include:

• Retail store display freezers and coolers
• Supermarket display cases for producVmeats
• Retail store walk-in freezers and coolers
• Boiler operating control
• Condenser fan cycling or staging
• Cooling tower pump and fan control
• Space and return air temperature control
• Aquarium water temperature
• BBQ
• Over temperature control/protection

Troubleshooting

If you have a problem with the thermostat. there’s usually a quick and simple solution.

Green LED flash when powered on
It is a normal phenomenon, the Delay Starting Protection function for Refrigerating Compressor is working. You could enter Setup Mode directly, or wait 3 minutes(based on OP setting value) until it doesn’t flash green light before setting the temperature controller.

Err Alarm
When the temperature sensor is short-circuited or open-circuited, the controller will prompt sensor fault mode, the buzzer will alarm, and LED displays Err. The buzzer alarm could be dismissed by pressing any key. After the faults are solved, the system will return to normal working mode. So make sure that the sensor is plugged into the hole fully, if it displayed Err still, you can exchange another sensor.

HL Alarm
When the current temperature exceeds the measuring range (less than -40°C/ -40°F or higher than 120°C/248° F), the controller will prompt over-temperature alarm mode, and cancel all the actions. The buzzer will alarm, LED displays HL. The buzzer alarm could be dismissed by pressing any key. When the temperature returns to the measuring range, the system will return to normal working status.

Heating and refrigeration equipment don’t work

• Please make sure the setting value is correct. If the thermostat works fine, the green LED(RUN) is turned on.
• Please check if the loading is contacted reversely to the heating or cooling outlet.
• If the thermostat does not operate properly after trying the troubleshooting steps, please send your questions to our email: service@digit-en.com.

WARRANTY

The DIGITEN products are guaranteed to the original owner for one year against defects in workmanship and materials. Please contact us:

• service@digit-en.com
• www.digit-en.com/support

Reference:

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DIGITEN DTC315 Electronic Temperature Controller Thermostat User Manual

DIGITEN DTC315 Electronic Temperature Controller Thermostat User Manual