Operating Features, Setting the Thermostat

2)Select FA or SL (Fast or Slow) Heating Cycle Rate - The FA setting is frequently used for gas, oil or electric heat. The SL setting produces a longer heating cycle which is nor- mally for hot water or steam (hydronic) systems. Both settings produce very accurate temperature control and can be set to your personal preference. FA cycles the system just under 1°F and the SL setting cycles at approxi- mately 1.5°F.

3)Select Display Backlight (d-L OFF or ON) - The display backlight improves display contrast in low lighting condi- tions. Selecting backlight ON will keep the light on for a short period of time after any key is pressed. Selecting OFF will keep the light off.

4)Select filter replacement run time - The thermostat will display "FILTER" after the selected time of operation. This is a reminder to change or clean your air filter. This time can be set from 0 to 1950 hours in 50 hour increments. A selection of 000 will cancel this feature. When

"FILTER" is displayed, you can clear it by pressing

and at the same time. This resets the timer and starts counting the hours until the next filter change.

5)Select Compressor Lockout (LOC OFF or ON) - Select- ing LOC ON will cause the thermostat to wait 5 minutes before turning on the compressor if the heating and cooling system loses power. It will also wait 5 minutes minimum between cooling cycles. This is intended to help protect the compressor from short cycling. Some newer compressors already have a time delay built in and do not require this feature. Your compressor manufacturer can tell you if the feature is already present in their system. When the compressor time delay occurs it will flash the (snowflake icon) for about five minutes then turn on the compressor.

6)Select Temperature Display Adjustment (4 LO to 4 HI) - Allows you to adjust the room temperature display 4°higher or lower. Your thermostat was accurately calibrated at the factory but you have the option to change the display temperature to match your previous thermostat.

7)Select Temperature DIsplay (°F or °C) - Changes the display readout to Celsius or Fahrenheit as required.

OPERATING FEATURES

Now that you are familiar with the thermostat buttons and display, read the following information to learn about the many features of the thermostat.

•SIMULTANEOUS HEATING/COOLING SETPOINT STORAGE — You can enter both your heating and cooling set points at the same time. There is no need to change the thermostat at the beginning of each season.

•CONFIGURATION MENU — Allows you to customize certain thermostat options.

SETTING THE THERMOSTAT

This thermostat is very easy to operate. Set the SYSTEM switch

to either HEAT or COOL then press or until the temperature you want to maintain is shown on the right side of the display. If you want to turn the system off, just move the SYSTEM switch to OFF.

The FAN switch controls the fan operation. When the FAN switch is set to AUTO, the fan will cycle with the furnace or air conditioner. When the FAN switch is set to ON, the fan will run continuously, regardless of SYSTEM switch position.

TROUBLESHOOTING

No Heating

With the SYSTEM switch set to HEAT, when the setpoint temperature is raised or lowered past the room temperature, the thermostat will make a soft click sound. Usually, the sound indicates the thermostat is operating correctly. If the system does not come on, check the system or contact your heating/ cooling service person. If the thermostat does not click try the Reset Operation listed below.

No Cooling

Same procedure as heating except set SYSTEM switch to COOL. There can be up to a 5 minute compressor lock-out time delay before the thermostat clicks in COOL.

Blank Display

A blank digital display usually indicates the thermostat has received a voltage spike, static discharge or requires new batteries. If the display remains blank after replacing the batteries, see Reset Operation below.

Reset Operation

If a voltage spike or static discharge blanks out the display or causes erratic thermostat operation you can reset the thermo-

stat by pressing , and move the SYSTEM switch from OFF to HEAT at the same time. This also resets the factory defaults to the configuration menu. If the thermostat has power, has been reset and still does not function correctly contact your heating/cooling service person or place of pur- chase.

The Emerson logo is a trademark and a service mark of Emerson Electric Co.

1F86-344 specifications

The White Rodgers 1F86-344 is a sophisticated programmable thermostat that exemplifies modern heating and cooling control technology. This device is designed for ease of use, efficiency, and comfort, making it a popular choice among homeowners and HVAC professionals alike.

One of the standout features of the 1F86-344 is its 7-day programming capability, allowing users to customize heating and cooling schedules for each day of the week. This flexibility empowers users to adjust the temperature according to their daily routines, leading to enhanced energy savings and improved comfort levels. With an intuitive interface, setting up the schedule is straightforward, ensuring that even those who are not tech-savvy can take full advantage of its functionalities.

The White Rodgers 1F86-344 also incorporates advanced technology, including a large, easy-to-read LCD display. This display provides clear visibility of the current temperature, along with the setpoint, making it simple for users to monitor their home’s climate at a glance. Additionally, the thermostat is equipped with intelligent recovery, a feature that learns how long it takes to reach the desired temperature, allowing it to activate system adjustments early, ensuring comfort without unnecessary energy expenditure.

Another notable characteristic of the 1F86-344 is its compatibility with multiple heating and cooling systems. It supports conventional systems, heat pumps, and multistage systems, making it versatile and suitable for various home setups. The device also features a built-in filter change reminder, which helps maintain system efficiency by alerting users when it’s time to change the air filter.

Installation is streamlined with the 1F86-344, as it can be easily mounted on the wall, and the user manual provides clear instructions to assist with the process. Moreover, it is engineered to minimize energy consumption, thus promoting environmentally friendly practices while also lowering utility bills.

In summary, the White Rodgers 1F86-344 is a state-of-the-art programmable thermostat that enhances home comfort through customizable scheduling, user-friendly design, and energy efficiency. Its robust features make it a reliable choice for managing home heating and cooling systems, reflecting a commitment to quality and technology.