4 MOUNTING AND WIRING

!WARNING

Do not use on circuits exceeding specified voltage. Higher voltage will damage control and could cause shock or fire hazard.

Do not short out terminals on gas valve or primary control to test. Short or incorrect wiring will damage thermostat and could cause personal injury and/or property damage.

Thermostat installation and all components of the sys- tem shall conform to Class II circuits per the NEC code.

A.Mount base and adaptor plate: Mount base and adaptor plate (optional) to wall using screws provided (see Fig. 1).

B.Attach wires: Attach one wire to R and the other wire to Y on base.

C.Snap on cover: Carefully align the cover with the base and snap the cover onto the base.

!CAUTION

Take care when securing and routing wires so they do not short to adjacent terminals or rear of thermostat. Personal injury and/or property damage may occur.

TERMINAL CROSS REFERENCE CHART

New Thermostat

Other Manufacturers’

Terminal Designation

Terminal Designation

R

V

Y

C

5 NEW THERMOSTAT OPERATION

After power is turned on, slide temperature lever to desired setting. To turn cool off, slide lever all the way to the left until it clicks.

6 SPECIFICATIONS

ELECTRICAL DATA

 

Switch Rating

24 VAC (30 VAC max.)

Cooling

0 to 1.5 Amps

Switch Action

Snap Action

Anticipator Rating:

 

Cooling

Fixed

THERMAL DATA:

 

Temperature Range

50°F to 90°F (10°C to 32°C)

Operating Humidity Range ...

0 – 90% noncondensing

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White Rodgers 1C21 installation instructions Mounting and Wiring, NEW Thermostat Operation, Specifications

1C21 specifications

The White Rodgers 1C21 is a well-regarded thermostat designed for residential heating and cooling systems. It is known for its reliable performance and user-friendly interface. The 1C21 model offers a blend of essential features and cutting-edge technologies, making it a popular choice among homeowners looking for an efficient climate control solution.

One of the key features of the White Rodgers 1C21 is its easy-to-read digital display, which allows users to monitor and adjust the temperature effortlessly. The display provides clear readouts, making it simple to ensure that the indoor environment is comfortable. Moreover, this thermostat is compatible with a variety of heating and cooling systems. It works seamlessly with gas, oil, and electric heating units, as well as central air conditioning systems, ensuring versatility for diverse home setups.

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Another notable aspect of the White Rodgers 1C21 is its user convenience. The thermostat features a straightforward installation process, typically compatible with standard wiring configurations found in most homes. Additionally, it includes intuitive buttons for easy temperature adjustments and programming, ensuring that users can operate it without the need for extensive technical knowledge.

In terms of reliability, the White Rodgers brand is known for its durable and long-lasting products. The 1C21 is designed with robust materials that can withstand the wear and tear of daily use. Furthermore, it has built-in accuracy features, maintaining consistent temperature control for optimal home comfort.

Energy efficiency is a priority for the White Rodgers 1C21, which may contribute to lower utility costs over time. By utilizing programmable settings, users can optimize their energy consumption, aligning heating and cooling needs with their daily lifestyle.

In summary, the White Rodgers 1C21 is an efficient thermostat that combines essential features, user-friendly operation, and compatibility with various heating and cooling systems. Its reliable performance and focus on energy efficiency make it a valuable addition to any home, ensuring both comfort and cost-effectiveness. Whether upgrading an old thermostat or installing a new one, the White Rodgers 1C21 is an excellent choice for maintaining a pleasant indoor climate.