13.I live in an area where daylight savings time is observed. How do I change the thermostat clock twice a year without affecting thermostat programming?

To change your clock, follow the instruc- tions for setting current time and day. See ENTERING YOUR PROGRAM. Thermo- stat programming is not affected when you change the clock.

14.Do I have to reprogram my thermostat after I change the batteries?

When the thermostat is on the wall and the system has power, the thermostat is being powered by a 24v AC source. If power is lost, or if the thermostat is removed from the wall, the program will be retained for ap- proximately one minute if there are no batteries installed or if the installed batteries are dead. If you are changing the batteries

after seeing a flashing BATTERY on the display, the installed batteries may be dead. If you remove the old batteries and install fresh ones within one minute, you should not lose your thermostat programming. Af- ter installing new batteries, follow the proce- dures in CHECK YOUR PROGRAMMING to determine whether your programming was maintained. If the thermostat main-

tains programming, press

SYSTEM

until OFF

HEAT-OFF-COOL

is displayed, put the thermostat back on the

wall, press

SYSTEM

to select the operating

HEAT-OFF-COOL

mode you want, then press

RUN

to start

PRGM

program operation. If the program is lost, reprogram the thermostat. See PROGRAM-

MING YOUR THERMOSTAT.

31

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White Rodgers 1F90W-51 manual Tains programming, press
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1F90W-51 specifications

The White Rodgers 1F90W-51 is a sophisticated thermostat designed for modern heating and cooling systems, offering homeowners a blend of convenience, energy efficiency, and advanced technology. This programmable thermostat is well-regarded for its user-friendly features and ease of installation, making it a popular choice among DIY enthusiasts and professionals alike.

One of the standout features of the White Rodgers 1F90W-51 is its ability to provide precise temperature control. It supports a 7-day programming schedule, allowing users to set different temperatures for each day of the week, maximizing comfort while minimizing energy usage. This feature is particularly beneficial for families with varying schedules, enabling them to maintain optimal home temperatures when they are present and reduce heating or cooling when the house is empty.

The 1F90W-51 incorporates advanced technology that allows for compatibility with a wide range of HVAC systems, including conventional heating and cooling setups, heat pumps, and even multi-stage systems. The thermostat's digital display makes it easy for users to read and adjust settings, while its intuitive interface simplifies programming and operation.

In terms of efficiency, the White Rodgers 1F90W-51 is designed to help homeowners save on energy bills. By allowing for precise temperature adjustments and programmable schedules, it encourages users to optimize their heating and cooling usage. This not only protects the environment by reducing energy consumption but also translates to cost savings over time.

Another notable characteristic of the 1F90W-51 is its built-in temperature hold feature, which allows users to override the programmed settings temporarily. This is useful for occasions when unexpected changes in schedule may require a quick adjustment without the need to reprogram the entire unit.

In addition to functionality, the White Rodgers 1F90W-51 boasts a sleek design that blends seamlessly into any home décor. Its compact size and classic appearance allow it to fit well in various locations throughout the house.

Overall, the White Rodgers 1F90W-51 is a reliable and feature-rich thermostat that provides users with the tools needed to enhance their home comfort while remaining conscious of energy consumption. Its combination of programmability, compatibility, and user-friendly design makes it a top choice for those seeking an efficient and effective climate control solution.
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