White-Rodgers 1F56N-444 HVAC Control, Mercury-Free Mechanical Thermostat, 125VAC, 24V, 50-90°F
Mercury-free mechanical thermostat for single-stage heating and cooling systems with 50 to 90 degree Fahrenheit range
- TypeManual, Mechanical knob
- Size/Dimensions3.5 in x 5.25 in x 2.5 in
- ColorWhite
- Voltage125VAC
- Mount TypeWall Mount
- Relay ContactClassic, 24 volts
- Mercury-free design for safer installations
- Mechanical knob gives direct manual control
- Built-in bimetal thermometer shows room temperature
- Enclosed contacts improve reliability and accuracy
- 50–90°F range suits single-stage heating and cooling
What it is
The White-Rodgers 1F56N-444 is a mercury-free mechanical thermostat designed for single-stage heating and cooling systems. It suits homeowners and technicians who want simple manual temperature control without digital programming.
Build and connections
The white wall-mount unit measures 3.5 in x 5.25 in x 2.5 in and includes a 3-wire zone mounting plate. Enclosed contacts improve reliability and temperature accuracy, while the built-in bimetal thermometer provides a direct temperature readout.
Voltage compatibility
This thermostat operates on 24 V relay contacts and 125 VAC supply, covering standard low-voltage and millivolt systems. It will not work with multi-stage or communicating HVAC equipment that requires additional wiring or digital control signals.
Highlights
- Mercury-free design for safer installations
- Mechanical knob gives direct manual control
- Built-in bimetal thermometer shows room temperature
- Enclosed contacts improve reliability and accuracy
- 50–90°F range suits single-stage heating and cooling
Specifications
| Type | Manual, Mechanical knob |
|---|---|
| Brand | White-Rodgers, Copeland |
| Model | 1F56N-444 |
| Size/Dimensions | 3.5 in x 5.25 in x 2.5 in |
| Color | White |
| Voltage | 125VAC |
| Mount Type | Wall Mount |
| Relay Contact | Classic, 24 volts |
| Standards/Certifications | not_capable_emitting_rf_energy |
| Item Count | 12 pack |
| Selling Unit | 1 |
| Features | Low Voltage, White-Rodgers |
| Parts | 1 Year |
| Labor | 1 Year |
| Part Number | 1F56N-444 |
Questions about this item
What voltage does the 1F56N-444 thermostat operate on?
The 1F56N-444 operates on 125VAC line voltage with a 24-volt relay contact for low-voltage heating and cooling systems.
What are the exact dimensions of the 1F56N-444 for wall mounting?
The thermostat measures 3.5 inches wide, 5.25 inches high, and 2.5 inches deep, and includes a 3-wire zone mounting plate for wall installation.
How is the 1F56N-444 wired during installation, and what is a common mistake?
Connect the 3-wire zone plate for single-stage heat/cool systems; a common error is wiring it for multi-stage equipment, which the 1F56N-444 does not support.
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