Wired Remote Temperature Sensing

PROGRAMMING

One remote temperature sensor can be installed indoor or outdoor and connected to the thermostat by a maximum cable length of 100 meters (300 ft). Three terminals, +, S & - are provided on the terminal block to connect to the White- Rodgers standard wired remote sensor. This sensor will be read by the thermostat only when 24VAC is present.

When used as indoor sensor, the readings can be weighted with the local sensor for specific program periods. User can enable or disable the remote sensor in the installer configu- ration mode and also the outdoor temperature can be selected to show on the display.

Once in the installer configuration mode, momentarily press

the	or	touch key until display indicates Remote (at the

top left of the LCD) and OFF (default – in clock digits).
Pressing		or	touch key will toggle the operation and

display from Remote OFF to Remote On.

When Remote On is selected, press key for the display to indicate Remote In (for indoor remote).

The or keys will toggle the operation and display from Remote In to Outdoor Remote.

When any remote is selected the temperature will display in the clock digits for one second alternating with the current time for three seconds when in Run Schedule mode. Outdoor Remote will indicate at the top left of display for outdoor remote reading.

Only Remote will show at top left for indoor remote reading. (oF or oC will not indicate with remote temperature readings).

Sensing Range:

Outdoor temperature range is -40 to 140oF

Indoor temperature range is 32 oF to 99 oF

Weight of Remote Reading:

When in view schedule mode the weight of the indoor remote sensor will be shown in the left actual temperature digits designated as A2 (default for average weight), H4 (high weight) or L1 (low weight). The period (Morning, Day, Evening, Night) will also be shown to the right of the weight value in the actual temperature digits.

When in view schedule mode, press and keys at the the same time to sequence the indoor remote temperature sensor weight from A2 to H4 to L1 and back to A2 for each of the program period times for each day. (The H4 weight is twice the weight of A2 and A2 is twice the weight of L1).

When Remote In is selected (with Remote selected to On), press key for the display to indicate the status of the local sensor LS On (default for thermostat local sensor opera- tional). The and keys will toggle the function and display from LS (shown in actual temperature digits) and On (shown in clock digits) to LS OFF to designate the local sensor is disabled.

The local sensor may be disabled only if the indoor remote sensor is enabled and functional.

If the indoor remote sensor is disabled or not functional, the local sensor will automatically enable and display in the run schedule mode.

The actual temperature displayed in the run mode is the mathematical weighted sum of the two temperature sensors

– local and indoor remote.

(Outdoor remote sensor is not used for this computation).

If the remote sensor is absent or not enabled then the actual temperature will be as measured by the local sensor.

1F97-1277 specifications

The White Rodgers 1F97-1277 is an advanced programmable thermostat designed for residential heating and cooling systems. This model exemplifies the perfect blend of functionality and user-friendliness, offering homeowners a reliable way to manage their indoor climate effectively.

One of the standout features of the 1F97-1277 is its intuitive interface. The large, easy-to-read LCD display allows users to quickly view and adjust settings without the frustration often associated with traditional thermostats. The screen includes backlighting, ensuring visibility even in low-light conditions.

The unit is programmable, providing users the flexibility to create customized heating and cooling schedules. With up to seven-day programming, homeowners can tailor their settings according to personal routines. This level of customization not only enhances comfort but also contributes to energy savings, as systems can be set to reduce heating or cooling when the home is unoccupied.

White Rodgers has integrated a variety of technologies into the 1F97-1277 to improve performance and user experience. The thermostat features an auto-changeover function, which allows it to seamlessly switch between heating and cooling modes depending on the indoor temperature. This functionality minimizes the need for manual adjustments, ensuring optimal comfort throughout the year.

Another important characteristic of this model is its compatibility with a range of HVAC systems. It supports single-stage and multi-stage heating and cooling systems, as well as heat pumps, making it a versatile choice for a variety of homes. The 1F97-1277 also includes FARS (Fresh Air Reduction System) technology, which monitors indoor air quality and adjusts operations to enhance ventilation.

Energy efficiency is further bolstered through the presence of smart recovery technology. This feature enables the thermostat to anticipate the time needed to reach the desired temperature, allowing the HVAC system to operate less while still maintaining comfort levels.

Overall, the White Rodgers 1F97-1277 represents a modern solution for temperature control. With its combination of user-friendly design, programmable capabilities, and advanced technologies, it stands out as an exceptional choice for anyone looking to improve home comfort while managing energy costs efficiently. The reliability and flexibility of this thermostat make it an invaluable tool for today’s homeowners.