White Rodgers 1F83-261, 1F81-261 Wiring diagram

C* R

Y2

Compressor

Contactor

Stage 1

Heat

Relay

Stage 1

Heat

Relay

Stage 2

Thermostat

Control

Circuit

24 VAC 120 VAC

Hot

Neutral

THERMOSTAT

SYSTEM

Y W

W2

Typical wiring diagram for single transformer systems

Fan

Relay

G

TRANSFORMER

Compressor

Contactor

Stage 2

* 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” Energizer® alkaline
batteries.

CONFIGURATION AND

1

Displayed (Factory Default) Press or to select: COMMENTS

HOLD
(0:00)

0 to 8 hrs (in

15 minute increments)

2

(FA)

SL

Select temporary Hold time

4

5

E

(ON)

OFF

6

7

LOC

(OFF)

ON

0 HI

(0)

4 LO to

4 HI

°(F) °C

Returns to normal operation

9

10

Select Energy Management Recovery OFF or ON

Select compressor lockout OFF or ON

Select temperature display adjustment higher or lower

Select temperature display to °F or °C

Select ON to start 2nd stage immediately when the setpoint
is manually raised more than 3° F in HEAT or lowered more
than 3° F in COOL from room temperature

RUN

PRGM

and RUN

HOLD

*

HOLD

*

3

d-L

(ON)

OFF

OFF

Select display backlight OFF or ON

HOLD

*

HOLD

*

Filter
(000)

0 to 1950 hours

(in 50 hour increments)

Select filter replacement run time

HOLD

*

HOLD

*

HOLD

*

Select FA or SL (Fast or Slow) heating cycle rate

Configuration Menu

* Press

HOLD to advance to next item or TIME to move backwards to previous item

1 + 2

FA

(ON)

8

1F83-261

Press Button(s)

1F81-261

Press Button(s)

Step

HOLD

*

N/A

N/A

N/A

Set SYSTEM

switch to OFF

and Press

and

and

and

and

and

and

Set SYSTEM

switch to HEAT

or COOL

C* R

Y2

Compressor

Contactor

Stage 1

Heat

Relay

Stage 1

Heat

Relay

Stage 2

Thermostat

Control

Circuit

24 VAC 120 VAC

Hot

Neutral

THERMOSTAT

SYSTEM

Y

W

W2

Typical wiring diagram for two-transformer systems with NO safety circuits

Fan

Relay

G

TRANSFORMER

Compressor

Contactor

Stage 2

24 VAC120 VAC

Hot

Neutral

TRANSFORMER

TWO COMMONS MUST

BE JUMPERED TOGETHER!

CUT AND

TAPE OFF!

* 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” Energizer® alkaline
batteries.

TYPICAL WIRING DIAGRAMS

1F81-261
1F83-261

NOTE

The following wiring diagrams show typical terminal identication and wiring. For proper installation, refer to the original manufacturer’s instruc­tions.

Relay contacts shown are thermostatically operated.

www.white-rodgers.com

Reset Operation: 1F81-261

If a voltage spike or static discharge
blanks out the display or causes er­ratic thermostat operation, you can
reset the thermostat by pressing
, and TIME at the same time. This
also resets the factory defaults to the

conguration menu and program. If the

thermostat has power, has been reset
and still does not function correctly,
contact your heating/cooling service
person or place of purchase.

Reset Operation: 1F83-261

If a voltage spike or static discharge
blanks out the display or causes erratic
thermostat operation, you can reset the
thermostat by pressing , and
move the SYSTEM switch from OFF
to HEAT at the same time. This also

resets the factory defaults to the
configuration menu. If the thermostat

has power, has been reset and still
does not function correctly, contact
your heating/cooling service person or
place of purchase.

181

TECHNICAL HELP