Single Stage Connections

Refer to equipment manufacturers' instructions for specific system wiring information..

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

You can configure the thermostat for use with the following systems:

WIRING CONNECTIONS

Single stage gas, oil or electric..

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

After wiring, see INSTALLER CONFIGURATION section for proper thermostat configuration.

Single Stage System with Single Transformer

Jumper

To Remote Temperature Sensor

{

 

B

O

Y

G

RC RH C*

+

S

-

W

6

 

L

System

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Blower/

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Circula-

 

 

 

 

 

 

DC

 

 

DC

 

 

 

 

 

 

 

Single

 

 

 

 

Energized

tor Fan

 

 

 

 

24 Volt

supply

Remote

Return

 

Third

Diagnostic

Stage

Energized

Energiz-

on call

Energiz-

24 Volt

24 Volt

Com-

voltage

Temp-

to

Energized

wire for

Indicator

(SS)

in Heat

ed in

for Cool

ed on

(Hot)

(Hot)

mon

to re-

erature

Remote

on call for

3-wire

 

or Off

Cool

(Com-

call for

mote

(See

 

Cool

Heat

(option-

Sensor

Temp-

Heat

zone

Note 1 )

 

Mode

Mode

pressor)

Cool &

 

 

 

 

al)

Temp-

signal

erature

 

valve

 

 

 

 

 

 

 

 

 

 

 

for Heat

 

 

 

 

 

 

erature

 

 

Sensor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(if ELE

 

 

 

 

 

 

Sensor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

is sel-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ected)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NEUTRAL

24VAC

120VAC

HOT

*Common connection required for fault or

malfunction indication and remote sensor..CLASS II

TRANSFORMER

Single Stage with Two Transformers

 

 

 

 

 

 

 

 

 

 

 

Remove Jumper Wire

 

 

 

 

To Remote Temperature Sensor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

between RH & RC

 

Jumper

 

 

 

 

 

{

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

O

Y

G RC RH C*

+

 

S

-

W

6

L

 

 

 

 

 

System

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Blower/

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Energized

Circula-

 

 

 

 

 

 

 

DC

 

 

 

DC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tor Fan

 

 

 

 

 

24 Volt

supply

 

Remote

Return

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

on call

Energiz-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Single

Energized

Energized

24 Volt

24 Volt

 

Com-

voltage

 

Temp-

to

Energized

Third wire

Diagnostic

 

 

 

 

 

Stage

in Heat,

in Cool

for Cool

ed on

(Hot)

(Hot)

 

mon

to re-

 

erature

Remote

on call for

for 3-wire

Indicator

 

 

 

 

 

(Com-

call for

 

 

 

 

 

 

 

(SS)

Off Mode

Mode

Cool

Heat

 

(option-

mote

 

Sensor

Temp-

Heat

zone valve

(See

 

 

 

 

 

pressor)

Heat or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

al)

Temp-

 

signal

erature

 

 

 

 

Note 1 )

 

 

 

 

 

 

 

 

 

 

 

 

 

Cool

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

erature

 

 

 

Sensor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(if ELE

 

 

 

 

 

 

 

Sensor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

is sel-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ected)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NEUTRAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

120VAC

 

 

 

 

24VAC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HOT

 

 

 

 

 

 

 

 

 

 

 

 

*Common connection required for fault or

HEATING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CLASS II

 

 

 

 

 

 

 

 

 

 

 

 

 

malfunction indication and remote sensor..

TRANSFORMER

NOTE: If continuous backlight or hardwired power input are desired but do not function in both HEAT and COOL modes, cut the heating transformer 24V wires and tape off.. Connect the neutral circuit disconnected from the heating transformer to the neutral circuit of the cooling transformer.. Discon- nect the wire to the RH terminal and install a jumper between RH and RC.. Depending on the system requirements, replace the cooling transformer with a 75VA class II transformer if needed..

NEUTRAL

24VAC

120VAC

HOT

COOLING

CLASS II

TRANSFORMER

Heat Pump Systems

To Remote Temperature Sensor

 

 

 

 

 

 

 

 

 

 

 

Jumper

 

 

 

 

{

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

O

Y

G RC RH C*

+

 

S

-

W

6

 

L

 

 

 

 

System

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1st

Blower/

 

 

 

 

 

 

DC

 

 

 

DC

Auxil-

Power

 

 

 

 

 

 

 

 

 

Energiz-

 

 

 

Circula-

 

 

 

 

 

 

supply

 

Remote

Closed

 

 

 

 

 

 

 

 

 

 

 

 

Stage

 

 

 

 

 

 

 

Return

iary &

 

 

 

 

 

 

 

 

 

ed in

Energized

tor Fan

 

 

 

 

 

 

voltage

 

Conn-

Diagnostic

 

 

 

 

Heat

Heat/

in Cool

Heat

Energiz-

24 VAC

24 VAC

24 VAC

to re-

 

Temp-

to

Emer-

ection

Indicator

 

 

 

 

Pump 1

Emer-

& Off

& Cool

ed on

(Hot)

(Hot)

Common

mote

 

erature

Remote

gency

for

(See

 

 

 

 

(HP1)

gency

Mode

(Com-

call for

Cool

Heat

(optional)

Temp-

 

Sensor

Temp-

Heat

3-wire

Note ￿)

Comfort

 

 

 

Mode

 

 

 

pressor)

Heat or

 

 

 

 

 

 

erature

 

signal

erature

1st

zone

 

 

 

 

Alert II module

 

 

 

 

 

 

 

 

**

Cool

 

 

 

 

 

 

Sensor

 

 

 

Sensor

Stage

valve

 

 

 

 

or similar

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

malfunction

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

module

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NEUTRAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24VAC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HOT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*24 VAC common connection optional for system operation..

Required for fault or malfunction indi- cation, remote temperature sensor, or for continuous backlight operation..

**Dual fuel de-energizes

compressor when auxiliary heat is

energized..

120VAC

CLASS II

TRANSFORMER

NOTE : Connection for Call for Service diagnostic indicator compatible with mechanical or electronic condenser control with Comfort AlertTM..3

Page 3
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Emerson 1F97-1277 specifications Single Stage Connections, Single Stage System with Single Transformer, Heat Pump Systems

1F97-1277 specifications

The Emerson 1F97-1277 is a state-of-the-art thermostat designed to deliver smart climate control for residential settings. This sleek, user-friendly device is packed with advanced features and technologies that enhance comfort while optimizing energy efficiency. Ideal for homeowners who seek seamless temperature management, the 1F97-1277 stands out in a crowded market due to its intuitive design and versatility.

One of the key features of the Emerson 1F97-1277 is its Smart Wi-Fi capability, which allows users to control their home’s heating and cooling systems remotely. By utilizing a mobile app compatible with both iOS and Android, homeowners can monitor and adjust their home temperature from virtually anywhere, whether at work or on vacation. This level of control not only enhances convenience but also ensures that homes are heated or cooled to the desired temperature before residents arrive.

Additionally, the 1F97-1277 includes Smart Home integration features, allowing it to work seamlessly with various smart home systems, including Amazon Alexa and Google Assistant. Voice control is an added convenience, making it easy to change settings or check the current temperature with just a simple command.

The thermostat also boasts a sophisticated touchscreen display, which presents a vibrant interface that simplifies navigation through its settings and options. With customizable settings, users can create schedules that align with their daily routines, thereby optimizing energy consumption and reducing utility costs. The 7-day programming feature allows for tailored comfort throughout the week, ensuring that the home is always at the desired temperature during peak hours.

Moreover, the Emerson 1F97-1277 incorporates Eco-Friendly settings, which are designed to help users reduce their carbon footprint. Its learning capabilities enable it to adapt to user preferences over time, enhancing both comfort and energy efficiency.

Finally, installation of the Emerson 1F97-1277 is straightforward, with support for both conventional and heat pump systems, making it a flexible choice for a variety of home heating and cooling applications. Its compatibility with most HVAC systems makes it a reliable solution for modern households.

In conclusion, the Emerson 1F97-1277 thermostat is an exemplary product that represents the intersection of technology and user-centric design. With its smart features, user-friendly interface, and energy-saving capabilities, it is an ideal choice for homeowners aiming to enhance their comfort and efficiency.