White Rodgers 1F85-0477 specification

INSTALLER/CONFIGURATION MENU

1)This control can be conﬁ gured for:

MS 2 – Multi-Stage System (no heat pump)

HP 1 – Heat Pump with one stage of compressor HP 2 – Heat Pump with two stage compressor or two compressor system, Gas or Electric backup

SS 1 – Single Stage System

2)GAS or Electric (ELE) fan operation. If the heating sys- tem requires the thermostat to energize the fan, select ELE. Select GAS if the heating system energizes the fan on a call for heat.

3)Select Cool Savings™ value – Selects the amount of adjustment for the Cool Savings™ feature in Cool mode with 1 (1°) being the least amount of adjustment and 6 (6°) being the most amount of adjustment. Default value is 0 which disables this feature. Selecting a value greater than 0 will display Cool Savings on the screen and enable the key for Cool Savings feature. Cool Sav- ings is an optional energy saving feature that can reduce your cooling costs. It is based on the principal that lower indoor humidity makes a slightly higher temperature feel more comfortable. Cool Savings operates during periods of high demand which normally occur on the hottest summer days when a cooling system may run for hours to reach the thermostat setting. Long cooling run times also lower the indoor humidity. Cool Savings, very slowly, adjusts the setpoint temperature to make the setpoint closer to the displayed room temperature, to a maximum of the number of degrees you select. Adjust- ing the setpoint temperature over a long cooling run time allows the system to reach your set temperature and turn off. The room temperature will actually be higher than the thermostat displays but the reduction in humidity will allow comfort at the slightly higher temperature.

To turn this feature on in the Cool mode press Cool Savings. The display will show “Save” next to the setpoint temperature. When Cool Savings is making ad- justments to the room temperature display “Save” will be ﬂ ashing and the displayed room temperature may vary within the adjustment range you selected.

If “Save” is not displayed and this feature is OFF, no change will occur when the cooling system is continu- ously running during periods of high demand.

4)Energy Management Recovery: Energy Management Recovery (E) On enables the thermostat to start heating or cooling early to make the building temperature reach the program setpoint at the time you specify. Heating will start 5 minutes early for every 1° of temperature required to reach setpoint.

Example: E On is selected and your heating is pro- grammed to 65° at night and 70° at 7 AM. If the build- ing temperature is 65°, the difference between 65° and 70° is 5°. Allowing 5 minutes per degree, the thermostat setpoint will change to 70° at 6:35 AM. Cooling allows more time per degree, because it takes longer to reach set temperature.

5, 6 & 7) Cycle Rate Selection – The factory default setting for Heat and Cool modes, SS1, MS2, is medium cycle (ME). For Heat Pump, HP1, HP2, the default setting is medium (ME). For Emer (Aux) the default setting is fast

cycle (FA). To change cycle rate, press the or key.

Cycle rate differentials for different settings are:

	Fast	Medium Slow
MODE	FA	ME	SL
Heat (SS1, MS2)	0.4°F	0.6°F	1.7°F
Cool (SS1, MS2)	0.9°F	1.2°F	1.7°F
Heat Pump (HP1, HP2)	0.9°F	1.2°F	1.7°F
Emer (HP1, HP2)	0.6°F	-	1.7°F

8)Select Compressor Lockout CL OFF or ON – Select- ing CL ON will cause the thermostat to wait 5 minutes between cooling cycles. This is intended to help protect the compressor from short cycling. Some newer com- pressors already have a time delay built in and do not require this feature. Your compressor manufacturer can tell you if the lockout feature is already present in their system. When the thermostat compressor time delay oc- curs, it will ﬂ ash the setpoint for up to ﬁ ve minutes.

9)System Mode Conﬁguration – This thermostat is

conﬁ gured for Heat and Cool (SYSTEM switch with Cool, Off, Heat) default. It can also be conﬁ gured for Heat and Cool with Auto changeover (Heat, Auto, Cool, Off), Heat only with fan (Off, Heat), Heat only without fan, Auto only (Auto, Off), and Cool only (Cool, Off).

10)Select Backlight Display – The display backlight im- proves display contrast in low lighting conditions. When the “C” terminal is powered, selecting backlight CdL ON will keep the light on continuously. Select backlight OFF will turn the light on momentarily after any key is pressed. When the “C” terminal is not powered, the light will be on momentarily after any key is pressed no matter whether the backlight is selected ON or OFF.

11)Select Temperature Display Adjustment 4 LO to 4 HI

– Allows you to adjust the room temperature display up to 4° higher or lower. Your thermostat was accurately cali- brated at the factory, but you have the option to change the display temperature to match your previous thermo- stat. The current or adjusted room temperature will be displayed.

12)Select F° or C° Readout – Changes the display readout to Celsius or Fahrenheit as required.

13 & 14) Temperature Limit Range Heat or Cool – This selection sets the maximum HEAT (13) or minimum COOL (14) temperature for the setpoint range. Select the

limit temperature using the or keys. In the Run mode, the setpoint temperature will not adjust past the limit temperature selected. When the limit temperature is reached, trying to raise or lower the setpoint past the limit will cause “L” to be displayed in the times digits for about 6 seconds. This feature not available on earlier models.

15)Program Options: Conﬁ gured for 7 day or 5/1/1 day pro- gramming or non-programmable mode. The default set-

ting is P7, indicating 7 day programming. The programs

per week can be changed to P3 by pressing the or keys. A selection of 0 Days for non-programmable will eliminate the need for EMR, and that step in the menu will be skipped.

16 & 17) Select Automatic Schedule – With just one touch

of the AUTO SCHEDULE button this feature allows you to program a desired comfort temperature into all the program periods along with a 6° set back for night periods of both Heat and Cool programs. Factory default is “On” for both. When Heat AS On and Cool AS On are activated while in Heat or Cool mode, select desired setpoint temperature and press AUTO SCHEDULE. This value will be copied into all the morning, day and evening program periods. The night program periods will have a 6°F set back.

18 & 19) Select Fast Second Stage ON or OFF – Heat pump or Multi-stage only, in the run mode, with the fast Heat feature enabled (FA Heat On), if the Heat setpoint temperature is manually raised by 3°F (2°C) or more

above the actual temperature using the second stage will energize immediately. With FA OFF, second stage will not energize until the setpoint temperature is 1°F or more above actual temperature for more than ten minutes. The Fast Cool feature (FA Cool) provides the same controls when the setpoint temperature is lowered.

1F85-0477 specifications

The White Rodgers 1F85-0477 is a popular thermostat designed to offer homeowners an efficient and user-friendly control over their heating and cooling systems. As part of the White Rodgers brand, which has been synonymous with reliable HVAC controls for decades, the 1F85-0477 stands out with a variety of features and technologies that enhance user experience.

One of the main features of the 1F85-0477 is its digital display, which provides clear and easy-to-read temperature settings. The intuitive interface allows users to adjust the temperature with just a few button presses, making it accessible for people of all ages. The large, backlit screen also ensures visibility even in low-light conditions, adding to its usability.

The 1F85-0477 supports both heating and cooling functions, making it versatile for year-round temperature control. This model is compatible with a range of HVAC systems, including gas, oil, and electric systems, as well as heat pumps. This broad compatibility ensures that homeowners can seamlessly integrate the thermostat into their existing setups without the need for extensive modifications.

Another significant feature is the programmable functionality, which allows users to set different temperature schedules for weekdays and weekends. This feature helps optimize energy use by ensuring that the heating or cooling system operates only when needed, thus contributing to lower energy bills. The thermostat can be programmed for up to seven days, offering flexibility and comfort tailored to individual lifestyles.

In terms of technology, the White Rodgers 1F85-0477 employs a precise temperature sensing mechanism that ensures accurate readings. This technology minimizes temperature fluctuations, which increases overall comfort levels within the home. Additionally, the model includes a built-in memory that retains settings even in the event of a power outage, ensuring that users don't have to reprogram their preferences.

The thermostat also boasts a sleek, modern design that fits well with contemporary home décor. Its user-friendly installation process allows homeowners to set it up quickly and easily, with minimal tools required.

Overall, the White Rodgers 1F85-0477 combines convenience, efficiency, and modern design into a reliable thermostat solution. With advanced features and robust technologies, it is an ideal choice for homeowners looking to enhance their HVAC control while enjoying optimal comfort and energy savings.