The DSD7 model is an innovative two-stage electronic temperature control suitable for heating, cooling, or combined applications. This unit includes one NTC sensor with the capability to add a second, and two distinct relays to handle complex temperature management tasks. For more information about the two-stage electronic temperature control, visit the product page.

Setting Up Your Two-Stage Temperature Controller

Two Stage Electronic Temperature Control for Heating & Cooling

Setting up your two-stage electronic temperature controller is easy, once you know what your differentials are.

Two-Stage Control for Heating or Cooling

Cooling Applications with Two-Speed Fans

In scenarios involving cooling, such as in areas with two-speed fans:

  • Low Speed Activation: Set the controller to 75°F. Relay 2 (R2) connects to the low-speed function of the fan, which activates when the ambient temperature hits 75°F.
  • High Speed Activation: Set the differential temperature 5°F higher at 80°F. Relay 1 (R1) controls the high-speed motor, which kicks in for more aggressive cooling as the temperature rises to 80°F.

Heating Applications with Dual Units

  • Different heating units can be managed by both relays. One unit turns on as the temperature starts to fall, and a second kicks in if the drop continues, ensuring consistent and efficient heating.

Two-Stage Control for Combined Heating and Cooling

Manage both heating and cooling efficiently using one or two sensors:

  • Cooling Mode: With Relay 2 (R2), maintain the temperature between 70°F and 75°F to keep the cooling equipment active.
  • Heating Mode: With Relay 1 (R1), activate a heating device when the temperature drops below the desired threshold.
  • Dual Sensor Use: Optionally, a second sensor can monitor a different environment, allowing one controller to manage one heating and one cooling device in separate locations.

Tempro Electronic Temperature Controller

Product Specifications

  • Versatility: Offers two-stage temperature control.
  • Range and Accuracy: Features a temperature range of -30° to 220°F, maintaining temperature accuracy within 1° of the set point.
  • Sensor Capability: Comes with one NTC sensor, with the option to add more.
  • User Interface: Includes a digital display with an adjustable differential range of 1° to 30°F.

For additional questions, please contact us.

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Thermostats & Guards

Tempro offers line voltage thermostats & guards commonly found in commercial, industrial and agricultural settings.

Custom Options

Variety of custom options available in both thermostats & guards, such as, temperature ranges, materials, size & private branding.

Certified

Tempro products meet NEMA, UL, cUL & NEC 457 Ag-ratings.

High Quality

We take pride in quality control & reliable operation of our components. Every switch is individually tested before it leaves the plant.

Stocked in the U.S.A.

Products are designed & shipped from our facilities in Eau Claire, WI to clients across the globe.