White-Rodgers 70 Series Thermostats: A Closer Look at 1F75H and 1F75C

The White-Rodgers 70 Series Thermostats combine functionality, accuracy, and user-friendly features. Whether you’re upgrading your existing thermostat or installing a new one, the 70 Series offers a seamless experience. Let’s delve into the details of the 1F75H and 1F75C models.

Key Features

  1. Modern Design: The 70 Series boasts a large, easy-to-read screen with a bright backlit display. Its sleek design complements any home decor.
  2. Proven Performance: With over 75 years of control experience, White-Rodgers guarantees ±1°F temperature accuracy.
  3. Application Specific:
    • 1F75H: Designed for heat pump systems (air source or geothermal) with single-stage compressor and auxiliary/emergency heat (electric or gas dual fuel).
    • 1F75C: Ideal for conventional systems (gas/oil/electric furnace and/or AC) with single-stage heating and cooling.


  • Electrical Rating:
    • Battery Power: 20 to 30 VAC, NEC Class II, 50/60 Hz
    • Input-Hardwire: 20 to 30 VAC, NEC Class II, 50/60 Hz
  • Terminal Load: 1.5 A per terminal, 2.5 A maximum (all terminals combined)
  • Setpoint Range: 45°F to 99°F (7°C to 37°C)
  • Rated Differentials (per 6°F/hr):
    • Heat Pump (Heat): Fast: 0.9°F, Med: 1.2°F, Slow: 1.7°F
    • Heat Pump (Cool): Fast: 0.9°F, Med: 1.2°F, Slow: 1.7°F
    • Auxiliary Heat: Fast: 0.5°F, Med: 0.75°F, Slow: 1.9°F
  • Operating Ambient: 32°F to +105°F (0°C to +41°C)
  • Display Temperature Range: 32°F to +99°F (0°C to 37°C)
  • Operating Humidity: 90% non-condensing maximum
  • Shipping Temperature Range: -20°F to +150°F (-29°C to +65°C)
  • Dimensions: 3-3/4" H x 6" W x 1-1/8" D

Installation Tips

  1. Wiring: Refer to the equipment manufacturer’s instructions for specific system wiring information.
  2. Installer Menu: Configure the thermostat properly using the Installer Menu after wiring.
  3. Application Icons: Verify the application (conventional or heat pump) by checking the side panel of the box.
  4. Mobile App: Use the WR Mobile App for easy product lookup and replacement.

Support and Warranty

  • Customer Support: Available seven days a week at 888-725-9797.
  • Warranty: 5-year limited warranty for HVAC professionals.

Cross Reference

For cross-referencing with other thermostat models, refer to the following table:

White-Rodgers Model Cross Reference Models
1F75C-11NP Pro1 TH1110E1000, T601
1F75C-11PR TH3110D1008
1F75H-21NP TH3210D1004
1F75H-21PR TH2210DH1000

Remember that heat pump models have combined O/B terminals.


Upgrade to the White-Rodgers 70 Series Thermostats for reliability, accuracy, and ease of use. Whether you choose the 1F75H or 1F75C, you’ll enjoy precise temperature control and a modern design.

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