WIRING DIAGRAMS

Heat Pump Connections

If you do not have a heat pump system, refer to fi gures 4-6. Refer to equipment manufacturers’ instructions for specifi c system wiring information.

You can confi gure the thermostat for use with the following heat pump systems.

HEAT PUMP TYPE 1 (HP 1). Single stage compressor system; gas or electric backup.

HEAT PUMP TYPE 2 (HP 2). Multi-stage compressor or two compressor system with gas or electric backup.

After wiring, see INSTALLER CONFIGURATION section for proper thermostat confi guration.

Figure 3 – Heat Pump Systems

JumperJumper

 

L

O/B

Y

Y2

W/E

W2

G

RH

RC

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTE: If your system does

System

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

Heat Mode

Blower/

 

 

 

 

 

 

not provide an E connection,

Heat Pump 1

 

 

No

 

 

2nd Stage.

 

 

 

 

 

 

jumper W2 to W/E to use

Energized in

 

 

 

 

Emergency

Circulator

 

 

 

 

 

 

the Auxiliary Heat in the

 

 

Output

 

 

 

 

 

 

 

 

(HP1)

Cool Mode

 

 

 

 

Mode 2nd

Fan Energized

 

 

 

 

 

 

 

Fault Indicator

Heat and

 

 

Emergency

24 Volt

24 Volt

Optional*

Emergency Mode.

 

or System

 

 

Cool Mode

 

 

Stage

on Call for

24 Volt

 

 

Malfunction

B

1st Stage

 

 

Mode

 

 

Heat or Cool.

(Hot)

(Hot)

(Com-

 

 

 

 

Heat Mode

* Common connection

 

Switch

Energized in

(Compressor)

2nd

1st Stage

Set Elect/Gas

Heat

Cool

mon)

Heat Pump 2

Heat, Off,

 

 

Stage

 

 

3rd Stage.

Option for

 

 

 

 

 

 

required for fault or

 

 

 

 

Emergency

 

 

 

 

 

 

(HP2)

Emergency

 

 

(Com-

 

 

Emergency

 

 

 

 

 

 

malfunction indication.

 

 

 

Mode

 

 

pressor)

 

 

Mode 2nd

Mode

 

 

 

 

 

 

 

 

 

 

 

 

 

Stage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

System Malfunction

NEUTRAL

 

Module

120VAC

 

24VAC

 

HOT

 

 

CLASS II

 

 

TRANSFORMER

 

Single Stage and Multi-Stage Connections

Refer to equipment manufacturers’ instructions for specifi c system wiring information.

This thermostat is designed to operate a single-transformer or two-transformer system.

You can confi gure the thermostat for use with the following fossil fuel systems:

SINGLE STAGE (SS 1) gas, oil or electric. MULTI-STAGE (MS 2) gas, oil or electric.

After wiring, see INSTALLER CONFIGURATION section for proper thermostat confi guration.

Figure 4 – Single Stage or Multi-Stage System (No Heat Pump) with Single Transformer

Jumper

L

O/B

Y

Y2 W/E

W2

G

RH RC

C

System

Single

 

O

 

No

 

 

Blower/

 

 

 

Stage 1

Fault

Energized Constantly

 

 

No Output

Circulator

 

 

 

 

Output

 

 

 

 

(SS1)

Indicator

in Cool Mode

 

Heat

 

Fan Energized

24 Volt

24 Volt

Optional*

 

 

Cool Mode

 

 

on Call for

 

or

 

 

Mode

 

Cool (and

(Hot)

(Hot)

24 Volt

 

System

B

1st Stage

 

 

(Com-

Multi-

Cool

1st Stage

Heat Mode

Heat if

Heat

Cool

Malfunction

 

mon)

Stage 2

Energized Constantly

 

Mode

 

2nd Stage

configured

 

 

Switch

in Heat, Off,

 

 

 

 

 

(MS2)

 

 

2nd

 

 

for Electric

 

 

 

 

 

Emergency

 

Stage

 

 

Heat)

 

 

 

 

 

Mode

 

 

 

 

 

 

 

 

*Common connection required for fault or

malfunction indication.

System Malfunction Module

NEUTRAL

24VAC

HOT

120VAC

CLASS II

TRANSFORMER

3

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White Rodgers 1F85-0477 specifications Wiring Diagrams, Heat Pump Connections, Single Stage and Multi-Stage Connections

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.