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Application
The DTC-102 thermostat can be used to control a wide variety of dual-stage refrigeration and
heating, or HVAC equipment, Typical applications include
：
•
Retail store display freezers and coolers
•
Supermarket display cases for product/meats
•
Retail store walk-in freeze and coolers
•
Boiler operating control
•
Condenser fen 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 thermostat, there’s usually a quick and simple solution.
Green LED flash when power on
It is a normal phenomenon, Delay Starting Protection function for Refrigerating Compressor is
working. Now PV(current temperature) is higher or equal to Csp(Cooling Start Point), you could
enter Setup Mode directly, or wait 3 minutes until it doesn't flash green light before setting the
temperature controller.
Err Alarm
When temperature sensor is in short-circuited or open-circuited, the controller will prompt
sensor fault mode, and cancel all the actions. The buzzer will alarm, and LCD displays Err.
Buzzer alarm could be dismissed by pressing any key. After faults solved, the system will return
to normal working mode.
HL Alarm
When current temperature exceeds the measuring range (less than -40
℃
/-40
℉
or higher than
120
℃
/248
℉
), the controller will prompt over-temperature alarm mode, and cancel all the
actions. The buzzer will alarm, LCD displays HL. Buzzer alarm could be dismissed by pressing
any key. When temperature returns to measuring range, the system will return to normal
working status.
