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R

C

G

W

Typical wiring diagram for two transformer single stage systems with safety circuits in BOTH systems

Changeover

Relay*

Y

O/B

Compressor

Contactor

* Changeover Relay is energized in COOL when O/B switch is in the “O” position

Changeover Relay is energized in HEAT when O/B switch is in the “B” position

Heat

Relay

Fan

Relay

Optional

TWO COMMONS MUST

BE JUMPERED TOGETHER!

24 VAC

120 VAC

HOT

NEUTRAL

THERMOSTAT

SYSTEM

HOT

NEUTRAL

120 VAC

Limit or

Safety

Switches

Limit or

Safety

Switches

Limit or

Safety

Switches

24 VAC

Limit or

Safety

Switches

COMMON

COMMON

Auxiliary

Heating

Transformer

(Class II

Current Limited)

Heat Pump Transformer

(Class II Current Limited)

24 VAC

ACCESSORY

RELAY N.O.

CONTACT

Polarity must be observed. If the HOT side of the

second transformer is jumpered to the COMMON side

of the first transformer a short will be made. Damage

to equipment will occur when power is restored.

NOTE

The accessory relay scheme

is required when safety

circuits exist in both systems.

NOTE

Optional Jumper for

Single Stage Heat Pump

1F80-0224/1F86-0244

1F80-0261/1F87-0261

CONFIGURATION MENU

Menu

Reference

Number

Press

Key

Displayed

Factory (Default)

Press

or

to

select from listed options

COMMENTS

1

and

SS

HP

Select Single Stage (SS) or

Heat Pump (HP, 1 compressor)

2

RUN/HOLD*

(OFF) CS

On

Select Cool Savings Feature On or OFF

RUN/HOLD*

(3) CS

1, 2, 3, 4, 5, 6

If CS selected On, selects Cool Savings value

3

RUN/HOLD*

(On) E

OFF

Select Energy Management Recovery On or OFF

4

RUN/HOLD*

(ME)

CR ( )

FA, SL

Select Adjustable Anticipation, cycle rate,

Heat Single Stage

5

RUN/HOLD*

(FA)

CR ( )

SL

Select Adjustable Anticipation, cycle rate,

Cool Single Stage

6

RUN/HOLD*

(OFF) CL

On

Select Compressor lockout OFF or On

7

RUN/HOLD*

(On) L

OFF

Select Display Light On or OFF

8

RUN/HOLD*

Temp

(0 HI)

4 LO to

4 HI

Select temperature display adjustment higher or lower

9

RUN/HOLD*

o

F

o

C

Select

o

F /

o

C Display (temperature units in Fahrenheit or Celsius)

10

RUN/HOLD*

(OFF)

Change Filter

On

Select filter replacement indicator OFF or On

RUN/HOLD*

Change Filter

(200 h)

25 to 1975

If Change Filter selected On, selects time interval for Change Filter

Indicator. (in 25 hour increments)

11

RUN/HOLD*

Returns to normal operation

*Press

RUN/HOLD

to advance to next item or

TIME

to move backwards to previous item

TYPICAL WIRING

AND CONFIGURATION

The configuration menu allows you to set certain thermostat operating characteristics to your system or personal requirements.

To enter the menu: Set your thermostat to OFF and press the

and

buttons simultaneously. The display will show the

first item in the configuration menu. Press RUN/HOLD to change to the next menu item or press TIME to go backwards to the

previous item in the menu. To exit the menu and return to the program operation, press PRGM. If no keys are pressed within

fifteen minutes, the thermostat will revert to normal operation.

INSTALLER/CONFIGURATION MENU

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TECHNICAL HELP