MULTI-STAGE TERMINAL OUTPUTS

Refer to equipment manufacturers’ instruc- tions for specific system wiring information.

You can configure the thermostat for use with either multi-stage electric heat systems or multi-stage gas systems. When configured for electric heat, the G terminal (blower/fan) will be energized on a call for heat.

This thermostat is designed to operate a single-transformer system. If you have a two- transformer system, cut and tape off one transformer. If transformer safety circuits are in only one of the systems, remove the transformer of the system with NO safety circuits. If required, replace remaining transformer with a 75VA Class II transformer. After disconnecting one transformer, the two commons must be jumpered together.

Use the terminal output information below to help you wire the thermostat properly for your multi-stage system. After wiring, see CONFIGURATION section for proper thermostat configuration.

 

 

THERMOSTAT TERMINALS (Upper)

 

 

L

PH

D

SA

SB

SC

O T

Malfunction Light

X-10 Module Input

Not Used

Remote Sense A

Remote Sense B

Remote Sense C

Outdoor Sensor

 

 

 

 

 

THERMOSTAT TERMINALS (Lower)

 

 

 

 

SYSTEM

E

C

R

W3/A1

W2

E2/P

W1

Y2

Y1

B

O

G

 

 

 

 

Damper terminal

 

 

 

 

 

Energized in

 

Blower/Fan Energized

 

 

24 Volt

24 Volt

Heat mode 2nd

 

Heat mode

Cool mode

Cool mode

Energized in

on call for Cool (and

Multi-Stage

No Function

energized in

No function

Heat and Off

 

 

(Common)

(Hot)

occupied mode

stage

 

1st stage

2nd stage

1st stage

Mode

Cool Mode

Heat if confgured to

 

 

 

 

 

 

 

 

 

 

Electric Heat).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HEAT PUMP TERMINAL OUTPUTS

Refer to equipment manufacturers’ instruc- tions for specific system wiring information.

You can configure the thermostat for use with the following heat pump system types:

HEAT PUMP TYPE 1. Single-stage compressor system; gas or electric backup.

HEAT PUMP TYPE 2. Multi-stage or two- compressor system; gas or electric backup.

HEAT PUMP TYPE 3. System requiring separate signals for heat (W1, W2) and cool (Y1); gas or electric backup.

This thermostat is designed to operate a single-transformer system. If you have a two- transformer system, cut and tape off one transformer. If transformer safety circuits are in only one of the systems, remove the transformer of the system with NO safety circuits. If required, replace remaining transformer with a 75VA Class II transformer. After disconnecting one transformer, the two commons must be jumpered together.

Use the terminal output information below to help you wire the thermostat properly for your heat pump system type. After wiring, see CONFIGURATION section for proper thermostat configuration.

 

 

 

 

THERMOSTAT TERMINALS (Upper)

 

 

 

 

 

 

 

 

 

L

PH

 

 

D

 

SA

 

 

SB

 

SC

 

O T

 

 

 

 

 

 

Malfunction Light

X-10 Module Input

Not Used

Remote Sense A

Remote Sense B

 

Remote Sense C

 

Outdoor Sensor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

THERMOSTAT TERMINALS (Lower)

 

 

 

 

SYSTEM

 

E

C

R

W3/A1

 

W2

E2/P

W1

 

Y2

Y1

B

O

G

Single-stage compressor system; gas or electric backup

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Heat mode

 

 

 

 

 

 

 

Heat mode 3rd

E2 - Emergency

 

 

 

Heat and cool

Energized in

 

 

 

 

1st stage.

 

 

 

 

Damper terminal

 

mode constant

 

 

 

 

Blower/Fan Energized

Heat Pump 1*

 

24 Volt

24 Volt

 

stage.

Heat mode

 

No Output

modes 1st

Heat, Off,

Energized in

 

Emergency

(Common)

(Hot)

energized in

 

Emergency mode

output.

2nd stage

 

stage

Emergency

Cool Mode

on call for Heat and

 

 

mode 1st

occupied mode

 

P - All other modes

 

 

Cool

 

 

stage.

 

 

 

 

 

 

 

2nd stage

constant output.

 

 

 

(compressor)

Mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Multi-stage or two compressor system; gas or electric backup

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E2 - Emergency

 

Heat and cool

Heat and cool

Energized in

 

 

 

 

Emergency

 

 

 

 

Damper terminal

 

 

 

mode constant

 

 

Blower/Fan Energized

Heat Pump 2*

 

24 Volt

24 Volt

 

Emergency mode

Heat mode

 

modes 2nd

modes 1st

Heat, Off,

Energized in

 

mode 1st

(Common)

(Hot)

energized in

 

2nd stage

output.

3rd stage

 

stage

stage

Emergency

Cool Mode

on call for Heat and

 

 

stage

occupied mode

 

P - All other modes

 

Cool

 

 

 

 

 

 

 

 

 

 

(compressor 2)

(compressor 1)

Mode

 

 

 

 

 

 

 

 

 

 

 

 

 

constant output.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

System requiring separate signals for heat (W1, W2) and cool (Y1); gas or electric backup

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Heat mode 2nd

E2 - Emergency

 

 

 

 

Energized in

 

 

 

 

Emergency

 

 

 

 

Damper terminal

 

mode constant

 

 

 

 

 

Blower/Fan Energized

Heat Pump 3**

 

24 Volt

24 Volt

 

stage.

Heat mode

 

No Output

Cool mode

Heat, Off,

Energized in

 

mode 1st

(Common)

(Hot)

energized in

 

Emergency mode

output.

1st stage

 

1st stage

Emergency

Cool Mode

on call for Heat and

 

 

stage

occupied mode

 

P - All other modes

 

 

Cool

 

 

 

 

 

 

 

 

 

 

2nd stage.

constant output.

 

 

 

 

Mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*If system does not provide connection to E, jumper W1 to E to provide Aux heating in emergency mode. ** If system does not provide connection to E, jumper W2 to E to provide Aux heating in emergency mode.

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White Rodgers 90 SERIES specifications MULTI-STAGE Terminal Outputs, Heat Pump Terminal Outputs

90 SERIES specifications

The White Rodgers 90 Series is a highly regarded line of thermostats known for their advanced features, reliability, and user-friendly design. These thermostats are engineered to provide maximum comfort and efficiency, making them a popular choice for homeowners and HVAC professionals alike.

One noteworthy feature of the 90 Series is its precision temperature control. Utilizing advanced sensing technologies, these thermostats ensure accurate temperature readings across various conditions and environments. This precision not only enhances comfort but also contributes to energy savings, as the system can adjust heating and cooling cycles effectively based on real-time data.

The 90 Series is designed with the consumer in mind, offering intuitive controls, a large backlit display, and a simple interface. Users can easily set their desired temperatures, program schedules, and access various settings without complicated procedures. The large display is especially helpful for quick readings, making it accessible even in low-light conditions.

Another significant aspect of the White Rodgers 90 Series is its programmable capabilities. Users can tailor heating and cooling schedules to fit their lifestyle, which optimizes energy usage when the home is empty or during nighttime hours. This programmability allows for weekday and weekend settings, providing flexibility and convenience.

In terms of energy efficiency, the White Rodgers 90 Series integrates Smart Response technology. This innovative feature learns the heating and cooling patterns over time and adjusts the operation of the HVAC system accordingly. It means the thermostat can pre-adjust to ensure the home reaches the desired temperature right when it's needed, ultimately reducing energy consumption and costs.

The 90 Series is also compatible with a wide range of heating and cooling systems, including gas, electric, and heat pump systems. This versatility ensures that it can be used in various applications, making it an ideal solution for diverse HVAC setups.

Overall, the White Rodgers 90 Series combines user-friendly design, advanced temperature sensing technology, and customizable programming capabilities. With a commitment to energy efficiency and comfort, this thermostat is an excellent choice for anyone looking to enhance their home climate control while potentially lowering energy bills. The White Rodgers brand continues to be synonymous with quality and innovation in the HVAC industry.