L RE

24 VAC 120 VAC

Hot

SYSTEMMONITORSWITCH

Neutral

SYSTEMG W2

Single transformer systems

TRANSFORMER

(Class II)

ChangeoverRelay*

CYO/B

CompressorContactor

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

AuxRelay

(Stage 2)

FanRelay

EmergencyRelay

See Note **

** Jumper required to use a single Aux Heat for both Second Stage Heat and Emergency

L RE

24 VAC 120 VAC

Hot

SYSTEMMONITORSWITCH

Neutral

SYSTEMG W2

Two transformer systems with NO safety circuits

TRANSFORMER

(Class II)

ChangeoverRelay*

CYO/B

CompressorContactor

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

AuxRelay

(Stage 2)

FanRelay Emergency

Relay

Limit orSafety

Switches

TWO COMMONS MUSTBE JUMPERED TOGETHER!

HOT

NEUTRAL

120 VAC 24 VAC

CUT ANDTAPE OFF!

If safety circuits are in only one of the systems, remove the transformer of the system with NO safety circuits.

NOTE

** Jumper required to use a single Aux Heat for both Second Stage Heat and Emergency

See Note **

1F82-261 / 1F89-211

Electric/Gasjumper (W904)

O/Bswitch

Reset switch(below Fan switch)

W904

The following table allows you to customize the options on your Comfort-Set thermostat. Begin by pressing simultaneously the two buttons in step 1.

Electric / Gas Jumper (Fan Option)If your emergency or auxiliary system will energize the blower, then jumperW904,onthethermostatbase,mustbecut(seefigureatleft).Ifyouremergencyorauxiliaryheatsystemrequiresthatthethermostatenergizethefancircuit,donotcutjumperW904.

O/B Terminal Switch SelectionThe O/B switch on this thermostat is factory set to the “O” position. Thiswillaccommodatethemajorityofheatpumpapplications,whichrequirethechangeoverrelaytobeenergizedinCOOL.Ifthether-mostat you are replacing or the heat pump being installed with this thermostatrequiresa“B”terminal,toenergizethechangeoverrelayin HEAT, the O/B switch must be moved to the “B” position.

CONFIGURATION ANDTYPICAL WIRING DIAGRAMS

CONFIGURATION

TYPICAL WIRING DIAGRAMS

1

Displayed (Factory Default) Press or to select: COMMENTS

HOLD(0:00)

0 to 8 hrs (in 15 minute increments)

2(SL)

FA

Select temporary Hold time

5

6

E(on)

OFF

7

8

LOC(OFF)

on

0 HI(0)

4 LO to4 HI

°(F) °C

Returns to normal operation

9

11

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

Set SYSTEMswitch to OFF

or

4 d-L(on)

OFF Select display backlight OFF or ON

Filter(000)

0 to 1950 hours(in 50 hour increments)

Select filter replacement run time

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

Configuration Menu

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

3 EMER(FA)

SL Select FA or SL (Fast or Slow) Auxiliary and Emergency Aux heating cycle rate

1F89-211Press Button(s)Step

RUN

PRGMand RUN

HOLD*

HOLD*

HOLD*

HOLD*

HOLD*

HOLD*

HOLD*

1F82-261Press Button(s)

or

or

or

or

or

or

or

HOLD*

FA (ON) OFF10 Selects fast second stage ON or OFFHOLD* or

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