When installing a NEMA 1 thermostat from Tempro, you’re choosing a solution built for precise temperature regulation across heating, cooling, and refrigeration systems in commercial and industrial settings. Tempro’s NEMA 1 thermostats feature durable steel or stainless-steel enclosures, protecting against dust, light, and minor splashes—perfect for essential indoor applications.
Below, you’ll see our guide to correctly installing and setting up your Tempro NEMA 1 thermostat, ensuring it operates as designed in your space. For more help with thermostat testing or installation guidance, download the instruction manual here or contact our support team.
Choosing the Best Location When Installing an Industrial Line Voltage Thermostat
Mount the thermostat 5-6 feet above the floor to capture the average temperature in the space. Avoid areas with:
- Direct sunlight
- Excessive drafts near doors, windows, or other openings
- Outside walls or heat-generating equipment
This placement prevents inaccurate temperature readings and maintains consistent performance.
Prepare for Installation
- Remove the Cover: Use a screwdriver to take out the four screws securing the thermostat cover, then lift it off.
- Position the Coil: Mount the thermostat with the coil facing down to protect it from dirt, debris, and impacts from falling objects.
Wiring the Thermostat
The wiring process may vary by application, but follow these general steps:
- Connect Wires to Terminals: Attach the wires to the appropriate terminals based on whether the thermostat controls heating or cooling.
- Use Wiring Diagrams:
- Single-Stage Wiring (Figure A): Refer to Figure A in the product manual for a single-stage setup, depending on your needs.
- Two-Stage Wiring (Figure B): For a two-stage setup, follow Figure B, which shows proper wiring configurations.
- Reattach the Cover: Once you’ve completed the wiring, secure the thermostat cover with the four screws.
Power Up and Set Temperature
- Connect the Power Supply: After double-checking the wiring, connect the thermostat to its power source.
- Set the Temperature: Turn the dial to align your desired temperature with the pointer, completing the basic setup.
Product Specifications for Tempro Industrial Line Voltage Thermostats
- Temperature Range: Handles -30°F to 110°F, with a fixed +/- 2°F differential. Adjustable differential models are available.
- Sensor Options: Includes a 6-foot cord with fixed or remote bulb sensor choices.
- Model Availability: Offers single and two-stage models for various applications.
- Custom Branding: Provides private labeling options for companies.
