White Rodgers 1F85-275 installation instructions Wiring Diagrams, Heat Pump Connections

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WIRING DIAGRAMS

Heat Pump Connections

Refer to equipment manufacturers' instructions for specific system wiring information. The thermostat can be configured for use with the following heat pump systems:

HEAT PUMP TYPE 1 (HP 1). Single Stage compressor system; gas or electric backup, 2-heat/1-cool stages maximum.

HEAT PUMP TYPE 2 (HP 2). Multi-Stage compressor or two compressor system with gas or electric backup, 3-heat/2-cool stages maximum.

See figure 2 below to help you wire the thermostat properly. After wiring, see CONFIGURATION section for proper thermostat configuration.

 

O

B

L

W2

G

Y1

E/W1

R

C*

Y2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

System

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Heat Pump 1

 

 

 

 

 

 

Heat Mode

Blower/

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2nd Stage.

 

 

 

 

 

 

 

 

 

 

(HP1)

 

 

Energized in

Fault

Emergency

Circulator

 

 

 

 

 

 

 

 

No Output

 

 

 

Indicator

Mode 2nd

Fan Energized

 

 

Emergency

24 Volt

24 Volt

 

Energized in

Heat, Off,

or

Stage

on Call for

Heat and

Mode

(Hot)

(Common)

 

 

 

Cool Mode

Emergency

System

 

 

Heat or Cool.

Cool Mode

1st Stage

 

 

 

 

 

 

Heat Pump 2

 

 

Mode

Malfunc-

Heat Mode

Set Elect/Gas

1st Stage

 

 

 

 

 

 

2nd Stage

(HP2)

 

 

 

 

tion

3rd Stage.

Switch for

(Compressor)

 

 

 

 

 

 

(Compressor)

 

 

 

 

 

Switch

Emergency

Emergency

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mode 2nd

Mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Stage

 

 

 

 

 

 

 

 

 

 

 

 

NOTE: If your system does not provide an E connection, jumper W2 to E/W1 to use the Auxiliary Heat in the Emergency Mode.

NEUTRAL

24VAC

HOT

 

CLASS II

Figure 2 – Heat Pump Systems

TRANSFORMER

 

120VAC

*The 24 volt neutral connection to terminal C on the thermostat is not required if you replace the batteries once a year with fresh “AA” alkaline batteries.

Single Stage/Multi-Stage Connections

(No Heat Pump)

Refer to equipment manufacturers' instructions for specific system wiring information. The thermostat can be configured for use with the following Single Stage and Multi-Stage systems:

SINGLE STAGE (SS 1). Gas, oil or electric, 1-heat/1-cool stage maximum.

MULTI-STAGE (MS 2). Gas, oil or electric, 2-heat/2-cool stages maximum.

See figure 3 below to help you wire the thermostat properly. After wiring, see CONFIGURATION section for proper thermostat configuration.

 

O

B

L

W2

G

Y1

E/W1

R

C*

Y2

System

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Single

 

 

 

 

 

 

No Output

Blower/

 

 

 

 

 

 

 

 

 

 

Stage 1

 

 

Energized

 

 

Circulator

 

 

 

 

 

 

 

 

No Output

(SS1)

 

 

Fault

 

 

Fan Energized

 

 

Heat

24 Volt

24 Volt

Energized

Constantly

 

 

on Call for

Cool Mode

 

 

 

Indicator

 

 

Mode

(Hot)

(Common)

 

 

 

in

 

 

Cool (and

 

 

 

Constantly

(NOT

 

 

1st Stage

1st Stage

 

 

 

 

 

 

Multi-

in

Heat, Off,

USED)

Heat Mode

Heat) if

 

 

 

 

 

 

 

 

Cool Mode

Stage 2

Cool Mode

Emergency

 

 

2nd Stage

configured

 

 

 

 

 

 

 

 

2nd Stage

Mode

 

 

for Electric

 

 

 

 

 

 

 

 

(MS2)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Heat

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NEUTRAL

24VAC

HOT

CLASS II

TRANSFORMER

Figure 3 – Single Stage or Multi-Stage System (No Heat Pump)

120VAC

*The 24 volt neutral connection to terminal C on the thermostat is not required if you replace the batteries once a year with fresh “AA” alkaline batteries.

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Contents Removing OLD Thermostat PreparationsElectric/Gas Switch Fan Option Mounting and WiringWiring Diagrams Heat Pump ConnectionsSingle Stage/Multi-Stage Connections No Heat Pump Fan Operation Check Thermostat OperationOperation Configuration MenuINSTALLER/CONFIGURATION Menu Select Fast Second Stage on or OFF not available SpecificationsPlanning Your Program Second Stage Time DelayAutomatic System Changeover Manual OperationEnter Heating Program Entering Your ProgramEnter Cooling Program TroubleshootingTemperature Down Key Wide temperature swingThermostat Setting Temperature Up KeyFAQ

1F85-275 specifications

The White Rodgers 1F85-275 is a versatile and innovative thermostat designed to provide homeowners with precise control over their heating and cooling systems. Its user-friendly interface and advanced technologies make it a popular choice for those looking to optimize their indoor climate efficiently.

One of the standout features of the 1F85-275 is its ability to control both heating and cooling systems, making it an all-in-one solution for year-round comfort. This thermostat is compatible with a wide range of HVAC systems, including gas, oil, electric, and heat pump systems. This compatibility ensures that homeowners can easily integrate the 1F85-275 into their existing setup without the need for extensive modifications.

A key characteristic of the 1F85-275 is its large, easy-to-read display. The digital interface allows users to view and adjust the temperature settings effortlessly. Additionally, the backlit display makes it convenient to read in low-light conditions, ensuring that adjustments can be made at any time of the day.

The 1F85-275 incorporates advanced scheduling capabilities, allowing homeowners to set specific temperature programs for different times of the day and days of the week. This feature promotes energy efficiency by enabling users to reduce heating or cooling when they are not at home or during sleeping hours. The intuitive programming options make it easy to customize settings according to individual preferences and lifestyles.

Another notable technology feature is the thermostat’s adaptive recovery capability. This technology automatically learns how long it takes for the home to reach the desired temperature, allowing it to start heating or cooling ahead of time. This ensures the home reaches the set temperature at the designated time, providing maximum comfort when needed most.

Moreover, the 1F85-275 includes a filter change indicator, reminding users when it’s time to replace or clean air filters. This not only enhances the efficiency of the HVAC system but also contributes to better indoor air quality.

The thermostat is also designed with energy-saving features in mind. Its precise temperature control and scheduling options can lead to significant savings on energy bills over time. With easy installation and clear instructions, users can have their 1F85-275 up and running in no time, making it an excellent choice for both tech-savvy users and those new to smart home technology.

In summary, the White Rodgers 1F85-275 combines user-friendly features, advanced technology, and energy-efficient operation, making it a compelling choice for homeowners seeking to enhance their indoor comfort while keeping energy costs in check.
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