Emerson 1F97-391 User Manual

Download

Thermostat/Humidifier Control

Digital 7 Day Programmable

Comfort-Set

90 Series

PREMIUM

1F97-391

Installation and Operating Instructions

Retain for Future Use

Easy, Menu-Driven Set-Up and Programming

7 8

Premium options to customize the thermostat to fit your application.

INTRODUCTION

Thank you for purchasing your new Comfort-Set 90 thermostat and humidifier control. WhiteRodgers has been producing energy saving controls for over 60 years. We have been designing and producing the ComfortSet family of electronic programmable thermostats since

1982. Comfort-Set 90 is the third generation of the electronic programmable family. We believe you will find that the Comfort-Set 90 is the most user friendly and technologically advanced thermostat and humidifier control available today.

Introduction

Installation/Configuration

You will find information about thermostat buttons and display beginning on page 2.

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . .1

Installation/Configuration . . . . . . . . . . . . . . .4

Manual Operation and Programming . . . .24

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

FAQs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

Troubleshooting . . . . . . . . . . . . . . . . . . . . . .42

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

Use the tabs at the bottom of the page to quickly locate sections

Programming

Features

FAQs

Troubleshooting Index

INTRODUCTION

THE THE

THERMOSTTHERMOST

THE

THERMOST

THE THE

THERMOSTTHERMOST

See inside front cover for illustration showing button locations.

(Blue arrow) Lowers temperature

setting (45°F or 7°C minimum)

(Red arrow) Raises temperature setting

(99°F or 37°C maximum)

The yellow indicator glows when the

system is operating.

This button (on top of the cover) lights

the display.

Used to initiate or review thermostat

programming.

Used with TIME

to set the clock.

T BT B

T B

T BT B

FWD

UTTUTT

UTT

UTTUTT

/TIME

ONSONS

ONS

ONSONS

BACK

Used to adjust the time backward, or to

select the previous menu item.

Used to adjust the time forward, or to

select the next menu item.

Used with TIME

to set the current day and with enter VACATION mode.

Used to advance operation to the next

program period.

Used to manually override program-

ming to hold at a selected temperature.

Used to display humidity.

Selects fan operation (see The Display, figure 1 21 ). This button is also used to program the fan to run continuously during a program period.

FWD

/TIME

HOLD

BACK

Used to set/reset the filter and

humidity maintenance timer.

Sets the system mode (HEATing, OFF,

COOLing, or AUTOmatic changeover).

Used to adjust the clock one hour

forward or back.

Used to start or return to program

operation.

LARLAR

GE LIGHTED (LGE LIGHTED (L

LAR

GE LIGHTED (L

LARLAR

GE LIGHTED (LGE LIGHTED (L

CD) DISPLACD) DISPLA

CD) DISPLA

CD) DISPLACD) DISPLA

The thermostat display alternately shows the current time and the current temperature on the left side. The display also shows the temperature you have programmed or set on the right side of your screen.

Displays system mode (

COOLCOOL

UTUT

HOLDHOLD

HOLD,

HOLDHOLD

MOR,MOR,

MOR,

MOR,MOR,

COOL,

COOLCOOL HUMDHUMD

HUMD). During programming displays the

HUMDHUMD

time period (

D D

EVE, EVE,

EVE,

EVE, EVE,

HEAHEA

HEA

HEAHEA

CA CA

CA or

CA CA

OFFOFF

OFF,

OFFOFF

NHT NHT

NHT)

NHT NHT

being programmed. In the configuration

18 18

19 20 21

CHECK BATTERY

MON

2324

FAN AUTOHRS

menu, the menu item name is shown, one

PRPR

GMGM

word at a time (

COOLCOOL

AN AN

COOL

COOLCOOL

AN AN

CHECK BCHECK B

CHECK B

CHECK BCHECK B

DELADELA

DELA

DELADELA

MODEMODE

MODE,

PRPR

GMGM

MODEMODE

OFFOFF

OFF, etc.).

OFFOFF

TTERTTER

TTER

Y appears when the

TTERTTER

“AA” alkaline batteries are weak and

should be replaced.

TTERTTER

TTER

TTERTTER

when the thermostat is running on battery power only.

CHECK STCHECK ST

CHECK ST

CHECK STCHECK ST

T T

T appears when

T T

the thermostat detects certain problems within itself.

CHECK SYCHECK SY

CHECK SY

CHECK SYCHECK SY

STEM STEM

STEM appears

STEM STEM

when the thermostat detects certain problems in the heating or humidity system.

CHECK BATTERY

MON WED THU FRI SAT SUNTUEWED THU FRI SAT SUNTUE

FAN AUTO

HRS

HEATHEAT

EMREMR

EMR,

EMREMR

Y appears

Indicates the length of time remaining in a temporary hold condition. Also indicates the length of time remaining in VACATION mode.

Displays operating continuously. Displays

UTUT

AN ONAN ON

AN ON when the fan is

AN ONAN ON

O when the fan cycles with the

ANAN

heating or cooling system.

Displays the setpoint temperature. In HUMD mode, shows humidity setpoint.

Alternately displays room temperature and time of day. In HUMD mode, shows actual humidity.

Shows the current day of the week. When programming, shows the day(s) being programmed.

The word

HEAHEA

HEA

HEAHEA

COOLCOOL

T or

COOL will appear

COOLCOOL

above or below the setpoint if area 18 is needed to display other information.

Introduction

Figure 1. The Display

INST ALLATION AND CONFIGURATION

This White-Rodgers Automatic Setback Digital Thermostat uses microcomputer technology to provide precise time, temperature and humidity

SPECIFICATIONSSPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONSSPECIFICATIONS

Model 1F97-391 Model 1F97-391

Model 1F97-391 7 Day Programming

Model 1F97-391 Model 1F97-391

ELECTRICAL DELECTRICAL D

ELECTRICAL D

ELECTRICAL DELECTRICAL D

Electrical Rating:

17 to 30 VAC, 50/60 Hz

0.05 to 1.5 Amps

1.5 Amps Maximum T otal Load (All terminals combined)

control. This thermostat offers the flexibility to design heating and cooling programs that fit personal needs. This thermostat is adaptable to

Standard Systems: Fuel: Gas, Oil, Electric Type: Heating/Cooling, Heat Only,

Hot Water or Steam Systems, Cool Only

most 24 Volt residential forced air, hydronic (hot water or steam), electric heat systems.

THERMAL DTHERMAL D

THERMAL D

THERMAL DTHERMAL D

Setpoint Temperature Range:

45° to 99°F (7° to 37°C)

Setpoint Humidity Range:

10% to 45%

Operating Ambient Temperature:

32° to 110°F (0° to 43°C)

Operating Humidity Range:

90% non-condensing max.

Shipping Temperature Range:

-4° to 131°F (-20° to 55°C)

WARNING

Do not shorDo not shor

Do not shor

Do not shorDo not shor gg

as vas v

as v

as vas v

test.test.

test.

test.test. will damawill dama

will dama

will damawill dama could cause percould cause per

could cause per

could cause percould cause per or pror pr

or pr

or pror pr

Do not use on cirDo not use on cir

Do not use on cir

Do not use on cirDo not use on cir specified vspecified v

specified v

specified vspecified v vv

oltaolta

olta

oltaolta

could cause shoccould cause shoc

could cause shoc

could cause shoccould cause shoc hazard.hazard.

hazard.

hazard.hazard.

herher

her

herher

and all components of theand all components of the

and all components of the

and all components of theand all components of the system shall confsystem shall conf

system shall conf

system shall confsystem shall conf circir

cuits per the NEC codecuits per the NEC code

cir

cuits per the NEC code

circir

cuits per the NEC codecuits per the NEC code

Do not wire HM1 or HM2 fromDo not wire HM1 or HM2 from

Do not wire HM1 or HM2 from

Do not wire HM1 or HM2 fromDo not wire HM1 or HM2 from therther

ther

therther ignition contrignition contr

ignition contr

ignition contrignition contr

t out tert out ter

t out ter

t out tert out ter

alvalv

e or primare or primar

alv

e or primar

alvalv

e or primare or primar

Shor Shor

t or incort or incor

Shor

t or incor

Shor Shor

t or incort or incor

e there ther

e ther

e there ther

operoper

ty damaty dama

oper

ty dama

operoper

ty damaty dama

oltaolta

olta

oltaolta

e will damae will dama

e will dama

e will damae will dama

mostamosta

mosta

mostamosta

mosta

mostamosta

t installat installa

t installa

t installat installa

WARNING

t (24 vt (24 v

t (24 v

t (24 vt (24 v

ol (120 vol (120 v

ol (120 v

ol (120 vol (120 v

minals onminals on

minals on

minals onminals on

y contry contr

ol tool to

y contr

ol to

y contry contr

ol tool to

ect wiringect wiring

ect wiring

ect wiringect wiring

mostamosta

t andt and

mosta

t and

mostamosta

t andt and

sonal injursonal injur

sonal injur

sonal injursonal injur

cuits ecuits e

cuits e

cuits ecuits e

Higher Higher

Higher

Higher Higher gg

gg k or firk or fir

k or fir

k or firk or fir

oror

olts) to HUM onolts) to HUM on

olts) to HUM on

olts) to HUM onolts) to HUM on

y and/y and/

y and/

y and/y and/

ceedingceeding

ceeding

ceedingceeding

e contre contr

ol andol and

e contr

ol and

e contre contr

ol andol and

tiontion

tion

tiontion

m to Class IIm to Class II

m to Class II

m to Class IIm to Class II

olts).olts).

olts).

olts).olts).

Installation/Configuration

CAUTION

o pro pr

ent electrical shocent electrical shoc

o pr

ent electrical shoc

o pro pr

ent electrical shocent electrical shoc

or equipment damaor equipment dama

or equipment dama

or equipment damaor equipment dama nect electric ponect electric po

nect electric po

nect electric ponect electric po main fuse or cirmain fuse or cir

main fuse or cir

main fuse or cirmain fuse or cir until installauntil installa

until installa

until installauntil installa

er to system aer to system a

er to system a

er to system aer to system a

cuit brcuit br

cuit br

cuit brcuit br

tion is completetion is complete

tion is complete

tion is completetion is complete

eakeak

eak

eakeak

k and/k and/

k and/

k and/k and/

discon- discon-

discon-

discon- discon-

er boer bo

er bo

er boer bo

NOTE

ead all instread all instr

ead all instr

ead all instread all instr

befbef

oror

e bee be

bef

e be

befbef

oror

e bee be

This thermostat is intended for use with a low voltage system. Do not use directly on a line voltage system unless an isolation relay/transformer is installed.

Do not exceed the ratings shown in the Specifications section, preceding page. If in doubt about the electrical ratings of your heating/cooling system, have it inspected by a qualified heating and air

uctions thoructions thor

uctions thor

uctions thoructions thor

ginning installaginning installa

ginning installa

ginning installaginning installa

oughloughl

oughl

oughloughl

tion.tion.

tion.

tion.tion.

PRECAUTIONSPRECAUTIONS

PRECAUTIONS

PRECAUTIONSPRECAUTIONS

conditioning contractor or licensed electrician.

All wiring must conform to local and national electrical codes and ordinances.

This control is a precision instrument, and should be handled carefully. Rough handling or distorting components could cause the control to malfunction.

INSTINST

INST

INSTINST

ALLAALLA

ALLA

ALLAALLA

TION TION

AND CONFIGURAAND CONFIGURA

TION

AND CONFIGURA

TION TION

AND CONFIGURAAND CONFIGURA

TIONTION

TION

TIONTION

ATTENTION!ATTENTION!

ATTENTION!

ATTENTION!ATTENTION!

This product does not contain mercury. However, this product may replace a unit which contains mercury.

Do not open mercury cells. If a cell becomes damaged, do not touch any spilled mercury. Wearing nonabsorbent gloves, take up the spilled mercury with sand or other absorbent material and place into a container which can be sealed. If a cell becomes damaged, the unit should be discarded.

Mercury must not be discarded in household trash. When the unit this product is replacing is to be discarded, place in a suitable container and return to White-Rodgers at 2895 Harrison Street, Batesville, AR 72501 for proper disposal.

REMOVE OLD THERMOSTATREMOVE OLD THERMOSTAT

REMOVE OLD THERMOSTAT

REMOVE OLD THERMOSTATREMOVE OLD THERMOSTAT

Shut off electricity at main fuse or circuit breaker box until installation is complete AND the jumper leads (fig. 10, page 17) on the back of the thermostat are configured properly.

Remove the front cover of the old thermostat. With wires still attached, remove wall plate from the wall.

Identify each wire attached to the thermostat using one of the labels

enclosed with the new thermostat. Disconnect the wires from the old

thermostat one at a time. DO NOT let the wires fall back into the wall.

Install the new thermostat using the following procedures.

ATTACH BASE TO WALLATTACH BASE TO WALL

ATTACH BASE TO WALL

ATTACH BASE TO WALLATTACH BASE TO WALL

Remove packing material from the thermostat. Place fingers of one hand on the center top and bottom portion of the thermostat. Grasp the base in the other hand on top and bottom center and gently pull straight out. Forcing or prying on the thermostat will cause damage to the unit.

Place the base over the hole in the wall where the wires come out and mark mounting hole locations base as a template. Drill install screw anchors in the wall.

Run wires through hole in base and attach base to wall (see fig. 2, page 7).

Insert the wires into the terminals on the base using the appropriate wiring diagram and tighten the terminal screws.

/16” pilot holes, and

CONFIGURINGCONFIGURING

CONFIGURING

CONFIGURINGCONFIGURING AND PROGRAMMINGAND PROGRAMMING

AND PROGRAMMING

AND PROGRAMMINGAND PROGRAMMING

Before the power is turned on, the thermostat must be configured to operate properly with the system. See CONFIGURATION on page 16 in this manual.

Mounting screws

Pull wires through this opening

Insert wires into terminal holes, then tighten screws

Screw anchors

Installation/Configuration

WRH

HM1

Figure 2 – Thermostat base

HM2

WIRING DIAWIRING DIA

WIRING DIA

WIRING DIAWIRING DIA

GRAMSGRAMS

GRAMS

GRAMSGRAMS

All wiring diagrams are for typical systems only. Refer to equipment manufacturers' instructions for specific system wiring information.

HM1 HM2

From heating system

From 24 VAC transformer

Red jumper wire (provided)

For humidifier wiring see pages 14-15. See page 9 for letter identification.

Figure 3 – Typical wiring diagram for heating only, single transformer system

RC RH

HM1 W RH RC G Y HM2 6

NOTE: Ensure that RED RH/RC jumper wire (provided with thermostat) is connected between thermostat's RH and RC terminals for proper operation with this system.

LETTER IDENTIFICATION FOR WIRING DIAGRAMS

Humidifier System

Zone Valve

Cooling System

Fan Relay

Heating System

Installation/Configuration

Jumper Wire

TRANSFORMER

24 VAC Side

120 VAC Side

Hot Side

Neutral Side

HEATING TRANSFORMER

COOLING TRANSFORMER

Jumper Wire (field-installed)

HM1 HM2

2 3

From heating system From 24 VAC transformer Red jumper wire (provided) From fan relay From cool system

For humidifier wiring see pages 14-15. See page 9 for letter identification.

Figure 4 – Typical wiring diagram for heat only, cool only, & heat/cool single transformer system

RC RH

HM1 W RH RC G Y HM2 6

NOTE: Ensure that RED RH/RC jumper wire (provided with thermostat) is connected between thermostat's RH and RC terminals for proper operation with this system.

NOTE: For three-wire heat only system, connect terminals

RHRH

and

RH. For cool only system, connect terminals

RHRH

G G

G and

G G

RHRH

RH.

RHRH

HM1 HM2

1 2

614

From heating system From 24 VAC transformer

(through zone valve)

Red jumper wire (provided)

From zone valve system

For humidifier wiring see pages 14-15. See page 9 for letter identification.

Figure 5 – Typical wiring diagram for heat only, three-wire, zone valve system

Installation/Configuration

HM1 W RH RC G Y HM2 6

NOTE: Thermostat must have batteries installed. NOTE: Ensure that RED RH/RC jumper wire (provided with thermostat) is connected between thermostat's RH and RC terminals for proper operation with this system.

HM1 HM2

RC RH

From heating system

From 24 VAC heating transformer

From 24 VAC cooling transformer

From fan relay

From cooling system

For humidifier wiring see pages 14-15. See page 9 for letter identification.

HM1 W RH RC G Y HM2 6

Figure 6 – Typical wiring diagram for heat/cool, two-transformer system

HM1 HM2

HM1 W RH RC G Y HM2 6

From 24 VAC cooling transformer

From fan relay

From cooling system

For humidifier wiring see pages 14-15. See page 9 for letter identification.

Figure 7 – Typical wiring diagram for three-wire cooling system

Installation/Configuration

HM1

6 Y G W

HM2

RC RH

NOTE: Two terminal choices (HM1 or HM2) are provided for humidifier control. When the humidity setting is higher than the room humidity:

HM1 turns off the humidifier when the call for heat ends. HM2 powers the humidifier an additional 30 seconds after the

call for heat ends to provide slightly more humidity output. Most installers will use HM1 unless they feel more humidity is

desirable.

Figure 8 – Typical wiring diagram for 24V humidifier system

HM1 W RH RC G Y HM2 6

From humidity system

See page 9 for letter identification.

HM1 6 Y G W

Relay 90-290Q or equivalent

Figure 9 – Typical wiring diagram for 120V humidifier system

Installation/Configuration

HM2

RC RH

HM1 W RH RC G Y HM2 6

From humidity system

See page 9 for letter identification.

CONFIGURACONFIGURA

CONFIGURA

CONFIGURACONFIGURA JUMPERSJUMPERS

JUMPERS

JUMPERSJUMPERS

Before turning power on to the system, the jumpers on the back of the thermostat must be configured to operate correctly with the system equipment.

This thermostat is configured from the factory to operate a standard fossil fuel (gas, oil, etc.), forced hot air system with a single stage air conditioning compressor and fan. This is the correct configuration for any system that DOES NOT require the thermostat to energize the fan on a call for heat.

TIONTION

TION

TIONTION

If you have an electric heat or other system that REQUIRES the thermostat to control the fan, find and cut the jumper lead labelled W914 (see fig.

10). This will allow the thermostat to energize the fan instantly on a call for heat. If you are unsure if the system requires the thermostat to control the fan, contact a qualified heating and air conditioning service person.

A remote sensor can be used with this thermostat. To use a remote sensor, jumper W922 must be clipped (see fig.

10) and the REMT SEN option in the configuration menu must be set to ON.

Clip for remote sense

3-pin connector

Clip for electric heat

Installation/Configuration

1 32

W914

W922

Figure 10 – Jumper locations

CONFIGURACONFIGURA

CONFIGURA

CONFIGURACONFIGURA

TION MENUTION MENU

TION MENU

TION MENUTION MENU

The configuration menu allows you to set thermostat operating characteristics to your system or personal requirements. To enter the menu, press TIME menu options. Press

arrow keys to change options. Either the installer or the operator may change shaded

and TIME

FWD

once at the same time. Press TIME

BACK

to advance through the

FWD

options. We recommend that other options be set by the installer.

Step Press Button(s) Displayed (Factory Default) Press or to select: COMMENTS

1 EMR

TIME TIME

2 SET CYCL HEAT

TIME

3 SET CYCL COOL

TIME

4 COOL FAN DELA OFF

TIME

5 COOL FAN DELA ON

TIME

6 COMP LOCK

TIME

7 SYSTEM

TIME

FWD

BACK

FWD

(ON)

(05)

(12)

(01)

(04)

(OFF)

(HEAT-OFF-COOL-AUTO)

OFF

02 - 40

09 - 40

01 - 127

01 - 05

HEAT-OFF,

COOL-OFF,

HEAT-OFF-COOL

Selects EMR option ON or OFF See page 32

Adjusts heat anticipation value (2 through 40) See page 20

Adjusts cool anticipation value (9 through 40) See page 20

Adjusts cool fan-off delay (1 through 127 sec.) See page 20

Adjusts cool fan-on delay (1 through 5 sec.) See page 20

Selects compressor lockout ON or OFF (see NOTE) See page 21

Selects system switch choices for heat only, cool only, heat/cool or automatic changeover See page 21

CONFIGURACONFIGURA

CONFIGURA

CONFIGURACONFIGURA

TION MENU (cont’TION MENU (cont’

TION MENU (cont’

TION MENU (cont’TION MENU (cont’

d)d)

8 0˚F

TIME

9 (˚F) ˚C

TIME

10 BEEP

TIME

11 REMT SEN

TIME

PROGRAM

FWD

(0)

(ON)

(OFF)

PART LOCK

(OFF) LOCK

(OFF)

DRY

(0)

RUN

5 LO to

20 LO to

HI - LO

5 HI

OFF

20 HI

Adjusts temperature display higher or lower See page 32

Adjusts temperature display to ˚F or ˚C. Turns beeper ON or OFF

Selects remote sensor OFF or ON See page 21

Selects partial keypad lockout OFF or ON See page 34

Selects total keypad lockout OFF or ON See page 34

Adjusts humidity display higher or lower See page 36

Selects programmable automatic humidity reduction See page 37

Returns to normal operation

NOTE: COMP LOCK OFF permanently defeats the compressor lockout. Turn this feature off only if the system already provides for compressor short-cycle protection.

CONFIGURACONFIGURA

CONFIGURA

CONFIGURACONFIGURA ADJUSTABLE ANTICIPATIONADJUSTABLE ANTICIPATION

ADJUSTABLE ANTICIPATION

ADJUSTABLE ANTICIPATIONADJUSTABLE ANTICIPATION

This option allows the cycle times in heating and cooling to be increased or decreased. The factory set values can be adjusted higher for longer cycles or lower for shorter cycles.

The adjustment range for HEATING is from 2 to 40. The factory preset is 5. The adjustment range for COOLING is from 9 to 40. The factory preset is

Anticipation Value Cycle Length Differential Temperature Cycle Length Differential Temperature

These numbers are approximate and represent operation with a typical system. Actual temperature differentials and run times may vary widely based on your building and equipment, as well as outdoor temperature conditions.

TIONTION

TION

TIONTION

12. The recommended initial setting for hydronic (hot water or steam) systems is 35.

The cooling will not go below 9 because compressors require a longer cycle.

The chart below shows how this adjustment range affects thermostat performance.

HEATING COOLING

Shorter 0.4–0.6˚F (0.2–0.3˚C) N/A2–8 N/A Longer Shorter9–20 0.6–1.0˚F (0.3–0.6˚C) 0.6–1.0˚F (0.3–0.6˚C)

Hydronic Longer21–40 1.0–1.6˚F (0.6–0.9˚C) 1.0–1.6˚F (0.6–0.9˚C)

COOL FAN-ONCOOL FAN-ON

COOL FAN-ON

COOL FAN-ONCOOL FAN-ON AND FAN-OFF DELAYAND FAN-OFF DELAY

AND FAN-OFF DELAY

AND FAN-OFF DELAYAND FAN-OFF DELAY

This option allows a selection of a fanon delay of 1 to 5 seconds on a call for cool and 1 to 127 seconds of fan-off delay after the thermostat has satisfied the call for cool.

A short delay to allow the A-coil to cool off before the fan turns on may be preferred. This also allows the

compressor and the fan to come on at slightly different times, which allows full power to the compressor on start up.

The fan off delay allows the fan to continue running after the compressor has shut off. This distributes the cooling that would otherwise stay trapped in the air conditioning coils through the ducts. Ideally the timing would be set so the fan shuts off just as the cool air is exhausted. If this timing is set too long the fan may begin blowing warm air before it shuts off. Shortening the fan-off delay will prevent this.

COMPRESSOR LOCKOUTCOMPRESSOR LOCKOUT

COMPRESSOR LOCKOUT

COMPRESSOR LOCKOUTCOMPRESSOR LOCKOUT

This thermostat is designed with an optional compressor lockout feature. It is designed to protect the system against premature compressor failure

Installation/Configuration

by “locking out” the compressor for at least five minutes after each cycle. When the thermostat is in compressor lockout, the word COOL will flash on the display. During this period, the compressor will not be energized.

Selecting COMP LOCK ON in the configuration menu (page 18, step 6) will enable this feature.

DISABLING HEAT, COOL,DISABLING HEAT, COOL,

DISABLING HEAT, COOL,

DISABLING HEAT, COOL,DISABLING HEAT, COOL, OR AUTO MODESOR AUTO MODES

OR AUTO MODES

OR AUTO MODESOR AUTO MODES

The automatic changeover feature of this thermostat can be disabled (automatic changeover allows the thermostat to switch between heating and cooling to maintain temperature). If this thermostat is controlling a heating-only or cooling-only system, the heat, cool, or auto modes can be disabled.

CONFIGURACONFIGURA

CONFIGURA

CONFIGURACONFIGURA

TIONTION

TION

TIONTION

Lockout Bypass Option

FOR QUALIFIED SERVICE TECHNICIANS’ USE ONLY. HOMEOWNERS SHOULD NOT USE THIS FEATURE DUE TO POSSIBILITY OF EQUIPMENT OR PROPERTY DAMAGE, OR PERSONAL INJURY.

To override this feature for one cycle while testing thermostat operation, press SET

DAY

SET time.

OPTIONAL REMOTEOPTIONAL REMOTE

OPTIONAL REMOTE

OPTIONAL REMOTEOPTIONAL REMOTE TEMPERATURE SENSETEMPERATURE SENSE

TEMPERATURE SENSE

TEMPERATURE SENSETEMPERATURE SENSE

An optional remote sensor (part # F145-1328) can be attached to this thermostat and may be wired as far

buttons at the same

TIME

and

CHECK CHECK

CHECK

CHECK CHECK

away as 300 feet. The thermostat will use the temperature in the remote location as its room temperature display.

This is an excellent feature if the thermostat is in a poor location for sensing temperature or the thermostat is in a separate room to prevent tampering.

THERMOSTTHERMOST

THERMOST

THERMOSTTHERMOST

T OPERAT OPERA

T OPERA

T OPERAT OPERA

NOTE

The remote sense feature will not work if the system does not provide 24V to the thermostat (example: heating-only system or 3-wire zone valves).

To use a remote sensor, jumper W922 must be clipped (see figure 10) and the REMT SEN option in the configuration menu (on page 19) must be set to ON.

TIONTION

TION

TIONTION

After the thermostat is installed and configured, do the following to ensure proper operation.

FAN OPERATIONFAN OPERATION

FAN OPERATION

FAN OPERATIONFAN OPERATION

If your system does not have a G terminal connection, skip to “Heating System” section.

1. Turn power on to the system.

2. Press displayed. The fan should begin to operate.

3. Press displayed. The fan should stop operating.

HEATING SYSTEMHEATING SYSTEM

HEATING SYSTEM

HEATING SYSTEMHEATING SYSTEM

1. Press displayed. If the heating system has a standing pilot, ensure that it is lit.

2. Press

FAN

SYSTEM

AN ONAN ON

until

AN ON is

AN ONAN ON

AN AN

HEAHEA

HEA

HEAHEA

T is

UTUT

until

to adjust thermostat

O is

setting above room temperature. The heating system should begin to operate.

3. Press below room temperature. The heating system should stop operating.

HUMIDIFIER OPERATION CHECKHUMIDIFIER OPERATION CHECK

HUMIDIFIER OPERATION CHECK

HUMIDIFIER OPERATION CHECKHUMIDIFIER OPERATION CHECK

NOTE: Humidifier will only operate

when the furnace is running.

1. Press displayed.

2. Press until the setpoint is above the room temperature by a few degrees and the furnace starts running.

3. Press

will show the current humidity level in the room and the current humidity setpoint for approximately 10 seconds.

4. To check humidifier, press

to adjust temperature

SYSTEM

switch until

HUMIDITY %

. The display

HEAHEA

HEA

HEAHEA

T is

HUMIDIFIER OPERATIONHUMIDIFIER OPERATION

HUMIDIFIER OPERATION

HUMIDIFIER OPERATIONHUMIDIFIER OPERATION CHECK (cont’d.)CHECK (cont’d.)

CHECK (cont’d.)

CHECK (cont’d.)CHECK (cont’d.)

raise the humidity setpoint (45% maximum) above the room humidity level. The humidifier should operate. If the humidity in the room is above 45%, press the setting to 45% (the maximum setting) and hold the up arrow in for 5 seconds. The display will read ON and the humidifier will operate. This test will last for one heat cycle. The humidifier will then operate when the heat is running to maintain your humidity setting.

COOLING SYSTEMCOOLING SYSTEM

COOLING SYSTEM

COOLING SYSTEMCOOLING SYSTEM

WARNING

To prevent compressor and/or property damage, if the outdoor temperature is below 50°F (10°C), DO NOT operate the cooling system.

to adjust

Installation/Configuration

CHECK CHECK

CHECK

CHECK CHECK

1. Press

2. Press to adjust thermostat

3. Press

RESETTING THERMOSTATRESETTING THERMOSTAT

RESETTING THERMOSTAT

RESETTING THERMOSTATRESETTING THERMOSTAT

The thermostat can be reset back to factory default programs and configuration options. Removing power from the thermostat will not reset it to the default settings. Before resetting the

SYSTEM

until COOL is

displayed.

setting below room temperature. The fan should come on (after the fan-on delay time, if any), followed by cold air circulation. There may be a 5 minute delay on compressor operation.

to adjust temperature setting above room temperature. The cooling system should stop operating, and the fan should stop running (after the fan-off delay time, if any).

THERMOSTTHERMOST

THERMOST

THERMOSTTHERMOST

T OPERAT OPERA

T OPERA

T OPERAT OPERA

thermostat, you may want to make note of the previously selected configuration options and programming.

To reset the thermostat, press and release PROGRAM

FAN

the buttons at the same time. This will reset the thermostat to factory default programs and configuration. The display will momentarily go blank, then all segments on the display will momentarily be shown. The thermostat will then go into the will maintain factory preset temperatures.

, TIME

TION (cont’TION (cont’

TION (cont’

TION (cont’TION (cont’

RUN

, then press

BACK

and

HOLDHOLD

HOLD mode and

HOLDHOLD

d.)d.)

d.)

d.)d.)

PROGRAMMING

MANUMANU

AL OPERAAL OPERA

MANU

AL OPERA

MANUMANU

AL OPERAAL OPERA

(Bypassing the Pr(Bypassing the Pr

(Bypassing the Pr

(Bypassing the Pr(Bypassing the Pr

Your Comfort-Set 90 thermostat can be used to control temperature manually (without programming). For manual operation, press to select

HEAHEA

HEA

HEAHEA

PROGRAM

to set the temperature as

desired.

PRPR

OGRAMMED OPERAOGRAMMED OPERA

OGRAMMED OPERA

PRPR

OGRAMMED OPERAOGRAMMED OPERA

Planning Planning

Planning

Planning Planning

The sample schedule (pages 26 & 27) shows the factory installed programs for heating and cooling. The heating and cooling programs are separate, and must be programmed individually. To use the factory program, set the clock and press PROGRAM thermostat

TIONTION

TION

TIONTION

COOLCOOL

T or

COOL, then press

COOLCOOL

HOLD

. Use or

our Prour Pr

our Pr

our Prour Pr

SYSTEM

set to

am)am)

am)

am)am)

amam

RUN

HeaHea

Hea

HeaHea

SYSTEM

TIONTION

TION

TIONTION

with the

CoolCool

Cool, or

CoolCool

utouto

uto.

utouto

Fill out the blank schedules (pages 28 & 29) with the time and temperatures you want in your program. Fill in every space for your program.

The same temperature can be repeated more than once if you do not want the temperature to change over several time periods. This is useful for homes or businesses that are occupied all day and only want a setback temperature at night.

Entering Entering

Entering

Entering Entering TT

o Set the Cloco Set the Cloc

o Set the Cloc

o Set the Cloco Set the Cloc

1. Press PROGRAM

2. Press SET show the hour. Use TIME TIME

our Prour Pr

our Pr

our Prour Pr

BACK

to set to the current hour

amam

RUN

TIME

. The display will

FWD

and AM/PM designation.

TIME

3. Press SET

again. The

display will show minutes. Use TIME

FWD

or TIME

BACK

to set to the

current minutes.

4. Press PROGRAM

o Set the Dao Set the Da

o Set the Da

o Set the Dao Set the Da

5. Press SET

DAY

RUN

. The display will

indicate a day of the week. Use TIME

FWD

or TIME

BACK

to set to the

current day of the week.

amam

am:

amam

to select

COOLCOOL

COOL (for

COOLCOOL

RUN

HEAHEA

HEA

HEAHEA

T (for

6. Press PROGRAM

o Set the Pro Set the Pr

o Set the Pr

o Set the Pro Set the Pr

7. Press

SYSTEM

heating program) or cooling program).

VIEW

8. Press PROGRAM The display will show

one time.

MORMOR

MOR and the

MORMOR

settings for time and temperature.

9. If you program Monday the first time you press PROGRAM

VIEW

it will be copied to the rest of the week. To program the other days of the week

ADV.

press

/DA Y until you reach the

day you wish to change and follow Steps 10, 11 & 12. You can also copy the program from one day to another. T o copy, press

HOLD

/COPY. The

display will show COPY, and all the other days of week will be flashing.

HOLD

Press

/COPY again to copy the

day in to the rest of the week or press TIME

FWD

or TIME

BACK

until you reach the day you want to copy to and press

HOLD

/COPY.

10.Press TIME

FWD

or TIME

BACK

to set the time on the display as selected in your HEATING or COOLING Schedule. Be sure to check the AM or PM on the display.

11.Press the red or blue button to adjust the temperature to match your schedule. If you want the fan ON continuously during this period, press

12.Press PROGRAM

FAN

VIEW

one time.

MOR on the display will change to DA Y. Repeat steps 10 and 11 to enter

time and temperature for this period.

Programming

13.Press PROGRAM

VIEW

to continue through the entire schedule, entering time and temperature for each period. When you are satisfied that your program matches your schedule, press PROGRAM

RUN

. Programming is now complete for this mode and your program is running.

14.To program the other mode, repeat the procedure from step 6.

7 Day Sample HEAT Program Schedule (Shows factory programming)

MON

TUE

WED

THU

FRI

SAT

SUN

Morning (MOR)

Day (DAY)

Evening (EVE)

Night (NHT)

Start Time

Temperature

6:00 AM 70°F (21°C) 8:00 AM 70°F (21°C) 6:00 AM 70°F (21°C) 8:00 AM 70°F (21°C) 6:00 AM 70°F (21°C) 8:00 AM 70°F (21°C) 6:00 AM 70°F (21°C) 8:00 AM 70°F (21°C) 6:00 AM 70°F (21°C) 8:00 AM 70°F (21°C) 6:00 AM 70°F (21°C) 8:00 AM 70°F (21°C) 6:00 AM 70°F (21°C) 8:00 AM 70°F (21°C)

2 3 4

5 6 5 6 5 6 5 6

62°F (16°C) 62°F (16°C) 62°F (16°C) 62°F (16°C) 62°F (16°C) 62°F (16°C) 62°F (16°C)

5:00 PM 10:00 PM 5:00 PM 5:00 PM 5:00 PM 5:00 PM 5:00 PM 5:00 PM

10:00 PM 10:00 PM 10:00 PM 10:00 PM 10:00 PM 10:00 PM

62°F (16°C) 62°F (16°C) 62°F (16°C) 62°F (16°C) 62°F (16°C) 62°F (16°C) 62°F (16°C)

7 Day Sample COOL Program Schedule (Shows factory programming)

MON

TUE

WED

THU

FRI SAT SUN

Morning (MOR)

Day (DAY)

Evening (EVE)

Night (NHT)

Start Time

Temperature

6:00 AM 78°F (25°C) 8:00 AM 78°F (25°C) 6:00 AM 78°F (25°C) 8:00 AM 78°F (25°C) 6:00 AM 78°F (25°C) 8:00 AM 78°F (25°C) 6:00 AM 78°F (25°C) 8:00 AM 78°F (25°C) 6:00 AM 78°F (25°C) 8:00 AM 78°F (25°C) 6:00 AM 78°F (25°C) 8:00 AM 78°F (25°C) 6:00 AM 78°F (25°C) 8:00 AM 78°F (25°C)

2 3 4

5 6 5 6 5 6 5 6

85°F (29°C) 85°F (29°C) 85°F (29°C) 85°F (29°C) 85°F (29°C) 85°F (29°C) 85°F (29°C)

5:00 PM 10:00 PM 5:00 PM 5:00 PM 5:00 PM 5:00 PM 5:00 PM 5:00 PM

10:00 PM 10:00 PM 10:00 PM 10:00 PM 10:00 PM 10:00 PM

82°F (27°C) 82°F (27°C) 82°F (27°C) 82°F (27°C) 82°F (27°C) 82°F (27°C) 82°F (27°C)

Programming

7 Day Personal HEAT Program Schedule

MON

TUE

WED

THU

FRI

SAT

SUN

Morning (MOR)

Day (DAY)

Evening (EVE)

Night (NHT)

Start Time

Temperature

2 3 4

5 6 5 6 5 6 5 6

7 Day Personal COOL Program Schedule

MON

TUE

WED

THU

FRI

SAT

SUN

Morning (MOR)

Day (DAY)

Evening (EVE)

Night (NHT)

Start Time

Temperature

2 3 4

5 6 5 6 5 6 5 6

Programming

FEATURES

Thermostat Features:

Pushbutton Backlight --------------- 31 Factory Preprogramming ----------- 31 Arm Chair Programming ----------- 31 Temporary Program Override------ 31 Indefinite Program Hold

(Bypassing the Program) -------- 31

Selectable Energy Management

Recovery (EMR) ----------------- 32

Automatic Heat/Cool

Changeover------------------------ 32 Adjustable T emperature Display -- 32 Programmable Fan Control -------- 33

Programmable Vacation

Time Temp ------------------------ 33 Daylight Savings Time Button ---- 33 Battery Back-up --------------------- 3 3 Keypad Lockout --------------------- 34 Thermostat Start-up after

Power Loss ------------------------ 34 Compressor Short Cycle

Protection -------------------------- 35 Air Filter Change-Out Indicator --- 35 System and Thermostat

Diagnosis -------------------------- 35

Humidistat Features:

Adjustable Humidity Display ------ 36 Humidifier Maintenance

Indicator ---------------------------36

Humidifier Control and

Monitoring ------------------------ 3 7

Programmable Automatic

Humidity Reduction ------------- 37

PushbPushb

Pushb

PushbPushb

utton Bacutton Bac

utton Bac

utton Bacutton Bac

klightklight

klight

klightklight

The large numbers and letters on your LCD screen make it easy to see. In low light conditions, press the button on top of the thermostat and the display will light up for three seconds. For ten minutes after pressing the light button, pressing any other button will light the display for ten seconds. The display light uses power from the 3 “AA” alkaline batteries installed. Excessive use of the display light will reduce battery life.

actoractor

y Pry Pr

prpr

actor

actoractor

y Pr

y Pry Pr

ammingamming

amming

prpr

ammingamming

This thermostat has been programmed at the factory. The chart in the programming examples section lists these factory settings. If the times and temperatures are the same as your schedule, you may simply run the factory installed program by pressing PROGRAM

RUN

ArAr

m Chair Prm Chair Pr

m Chair Pr

ArAr

m Chair Prm Chair Pr

ammingamming

amming

ammingamming

The thermostat uses 24 VAC power supplied by the system for normal operation. However, if the installed “AA” batteries are providing sufficient power, you can program the thermostat away from the wall. If the thermostat indicates low battery power (CHECK BATTERY), refer to the Battery Backup feature (page 33).

emporempor

arar

y Pry Pr

am Ovam Ov

erer

rideride

empor

emporempor

arar

y Pr

y Pry Pr

am Ov

am Ovam Ov

erer

ride

rideride

Any time your program is running and you would like to override it for a specific amount of time, press or until the temperature you want is displayed. The display will indicate HOLD, and the number of hours remaining in the hold period will be indicated with the word HRS. To adjust the length of time for the override, press TIME

BACK

. HOLD TILL will be displayed

FWD

or TIME

as well as the HOLD period expiration

Features

time. Press TIME

BACK

buttons until you reach the time

FWD

or TIME

you would like it to resume the program. The TIME

BACK

buttons adjust the time in 15

FWD

or TIME

minute increments. This programmed hold time has a 19 hour maximum and 15 minute minimum. Beyond 19 hours you may wish to use the vacation hold feature (page 33). If you need to, you can adjust the temperature up or down.

Indefinite PrIndefinite Pr

Indefinite Pr

Indefinite PrIndefinite Pr

am Hold.am Hold.

am Hold.

am Hold.am Hold.

If you want to operate the thermostat to keep a set temperature without a program running, press PROGRAM

HOLD

. The or buttons can be used to raise or lower the temperature. The thermostat will hold the set temperature until you return to the program by pressing PROGRAM

RUN

SelectaSelecta

Selecta

SelectaSelecta ManaMana

Mana

ManaMana

le Enerle Ener

le Ener

le Enerle Ener

ement Rement R

ement R

ement Rement R

ecoeco

eco

ecoeco

erer

y (EMR)y (EMR)

y (EMR)

erer

y (EMR)y (EMR)

EMR causes the thermostat to start operating the system early in order to make the building temperature reach your program setpoint at the time you specify. In heating, the thermostat will start 5 minutes early for every 1°F difference between the room temperature and the next programmed temperature. In cooling, the thermostat uses 15 minutes per °F.

EXAMPLE: If the temperature in the room is 65°F and the thermostat is programmed for 70°F at 7 AM, the thermostat will start approximately 25 minutes early. The difference between the room temperature (65°F) and the setpoint (70°F) is 5°. 5° X 5 minutes per °F = 25 minutes. The setpoint on the display will actually change to display 70° about 25 minutes early.

The maximum time the thermostat can

start early in heating is 75 minutes. The maximum time the thermostat can start early in cooling is 3 hours and 45 minutes. Cooling can start earlier because it takes longer for cooling systems to reach the desired temperature.

To select or deselect this feature, refer to the CONFIGURATION section (page 18, step 1).

utomautoma

tic Heatic Hea

utoma

utomautoma

tic Hea

tic Heatic Hea

t/Cool Changt/Cool Chang

t/Cool Chang

t/Cool Changt/Cool Chang

eoeo

erer

If you have a heating/cooling system, the thermostat can be set to automatically switch the system from heating to cooling as needed. To set your thermostat to this operating mode, press

button until AUTO is

SYSTEM

displayed on the screen. Pressing the and buttons

at the same time will change the setpoint temperature displayed to the

setpoint of the other mode. This will allow you to modify both the HEAT and COOL setpoints to accommodate a HOLD condition while in Automatic Changeover mode. To adjust, refer to the Configuration section (page18, step 7).

AdjustaAdjusta

Adjusta

AdjustaAdjusta

le le

emperemper

turtur

emper

le le

emperemper

tur

turtur

e Displae Displa

e Displa

e Displae Displa

The room temperature display can be adjusted to read higher or lower by following the configuration menu and adjusting the temperature to a higher or lower value. The thermostat is calibrated at the factory to display a very accurate room temperature, but due to various conditions and/or personal preference, you may wish to adjust the thermostat display higher or lower (up to 5°F). For example, if the thermostat displays a room temperature of 70° but you want it to display 73°, you can adjust it. To adjust, refer to the CONFIGURATION section (page 19, step 8).

PrPr

ammaamma

le Fle F

PrPr

amma

ammaamma

le F

le Fle F

an Contran Contr

an Contr

an Contran Contr

olol

This feature allows you to have your fan operate continuously through one or more programmed time periods. This is useful if you want constant air circulation in your location during a specific time period. If you do not use this feature, the fan will cycle normally with the heating and cooling system.

PrPr

ammaamma

le le

acaaca

tion tion

PrPr

emperemper

emper

emperemper

amma

ammaamma

turtur

tur

turtur

le le

e Opere Oper

e Oper

e Opere Oper

aca

acaaca

tion.tion.

tion.

tion.tion.

tion

tion tion

Time/Time/

Time/

Time/Time/

The VACATION mode allows you to program the thermostat to hold a constant temperature for 1 to 29 days. At the end of the day and time you select, the thermostat will return to normal program operation.

To program the number of days, press HOLD then press SET

DAY

. VACA

HOLD TILL will be displayed. The

display will also show DA YS (flashing) and the number 5. To

change the number of vacation days, press TIME Press

FWD

or TIME

or to set the

BACK

temperature you wish to maintain while away. While still in the vacation mode, set the time you want the program to resume by pressing SET

TIME

once. The current time will

display. Press TIME

FWD

to adjust the time in 15 minute increments. You may wish to select a few hours in advance of your expected return to allow time to reach the desired temperature. Your thermostat is now programmed to hold the temperature you selected through your vacation for HEAT, COOL, or AUTO.

After 20 seconds the display will return to time/temperature alternation, and will display VACA. Pressing SET

again will activate the vacation

DAY

mode settings. Pressing PROGRAM

RUN

cancels this feature and begins

Features

running your normal program.

DaDa

ylight Saylight Sa

ylight Sa

DaDa

ylight Saylight Sa

vings vings

vings

vings vings

Time Button.Time Button.

Time Button.

Time Button.Time Button.

One button adjustment allows you to change your thermostat clock between Standard Time and Daylight Savings time. Simply push the DAYLIGHT SAVINGS TIME button to advance the time forward one hour in the Spring. In the Fall, press the DAY- LIGHT SAVINGS TIME button twice to fall back an hour. If you push it three times in a row (in less than 30 seconds) it will return to the original time setting. After clock adjustment, press PROGRAM

RUN

to resume

your normal program.

BaBa

ttertter

y Bacy Bac

k-Upk-Up

BaBa

tter

ttertter

y Bac

y Bacy Bac

k-Up

k-Upk-Up

Three “AA” alkaline batteries allow the thermostat to maintain its program in the event of a power loss. They also operate the back light for viewing the

display in low light conditions, and allow for armchair programming.

CHECK BATTERY will be displayed when the batteries are low. To assure optimum performance, change batteries once a year or when CHECK BATTERY is displayed. When changing batteries, always replace all three batteries with new “AA” alkaline batteries (for optimum performance, we recommend Energizer

batteries). If the batteries must be changed frequently, it may indicate a problem with the system. Contact the heating/ cooling system manufacturer or a service person. Remember that excessive use of the display light will reduce battery life.

ypad Locypad Loc

ypad Loc

ypad Locypad Loc

out.out.

out.

out.out.

This security feature allows you to lock out the keypad to prevent unauthorized tampering with the program. Two levels of security are

available, Total Keypad Lockout or Partial Keypad Lockout. Total Keypad Lockout renders all buttons inoperative. Partial Keypad Lockout allows only the

or to operate for temporary temperature overrides. It also limits the temperature to the maximum heating and minimum cooling temperatures used in your program. This is especially useful in buildings where unscheduled events are common. Anyone can change the temperature, but only between the temperatures you set and only for two hours or the number of hours you specify if you set up your Hold Till timing (see Temporary Program Override, page 31). To select or deselect this feature, refer to the CONFIGURATION section (page 19, steps 12 and 13).

herher

mostamosta

t Start Star

her

herher

After After

After

After After

mosta

mostamosta

otal Potal P

otal P

otal Potal P

t Star

t Start Star

tuptup

tup

tuptup

er Losser Loss

er Loss

er Losser Loss

On installation, or when power is restored after a total power loss to the thermostat, your thermostat will automatically maintain a heating temperature of 62°F (16°C) and a cooling temperature of 85°F (29°C). A total loss of power will occur when you lose 24 VAC power to the thermostat, and you have no battery backup. If this happens, the thermostat display will go blank in about one minute after power loss.

When power is restored, the thermostat will automatically return to the temperatures listed above. If this happens, set the clock and day of the week (use steps 1 through 6 from “Entering Y our Program”, page 24), then select HEAT, COOL or AUTO using the PROGRAM

SYSTEM

. button, and press

RUN

to resume operation

with your previously set program.

CompressorCompressor

Compressor

CompressorCompressor ShorShor

t-Cyt-Cy

le Prle Pr

Shor

ShorShor

t-Cy

t-Cyt-Cy

le Pr

le Prle Pr

otection.otection.

otection.

otection.otection.

Your thermostat can be configured to protect your system against premature compressor failure by “locking out” the compressor. This ensures that the compressor will stay off for at least five minutes on each cycle. When the thermostat is in compressor lock-out, the word COOL will flash. During this period, the compressor will not be energized. See installation and configuration, page 18, step 6.

Air FilterAir Filter

Air Filter

Air FilterAir Filter ChangChang

Chang

ChangChang

e-Out Indicae-Out Indica

e-Out Indica

e-Out Indicae-Out Indica

tortor

tor

tortor

This feature allows the thermostat to display the words CHNG FLTR (change filter) after a set time of fan operation. This is a reminder to change or clean your air filter. The factory set interval for CHNG FLTR to be displayed is 200 hours of fan operation. This can be set anywhere from 0

to 1950 hours in 25 hour increments. A

selection of 00 will cancel this feature.

When CHNG FLTR is displayed, you can clear it by pressing the HUM/ FLTR SERVICE button. This resets the timer and starts counting the hours until the next filter change.

The following steps will allow you to change the number of hours for filter change-out.

1. If you see CHNG FLTR on the display, press the HUM/FLTR SERVICE button once to reset the timer. If you do not see CHNG FLTR proceed to step 2.

On a 7–Day thermostat, when the HUM/FLTR SERVICE button is pressed twice, the display will show the number of hours remaining before CHNG FLTR indicator will display.

Features

2. Press the HUM/FLTR SERVICE button. The display will show SET FIL TER TIME and will show the number of hours to filter change.

3. Press TIME

FWD

or TIME

BACK

to change the time to your requirements.

4. Press PROGRAM

RUN

to return

to the normal operating mode. NOTE: If unsure what interval to use

between filter changes or cleaning, contact the manufacturer of your heating/cooling equipment.

System andSystem and

System and

System andSystem and TT

herher

mostamosta

t Diat Dia

her

herher

mosta

mostamosta

t Dia

t Diat Dia

gnosticsgnostics

gnostics

gnosticsgnostics

The display will indicate CHECK SYSTEM if the room temperature

does not rise within two hours of the call for heat. After two hours the thermostat will quit calling for heat for one minute (this allows some furnaces to reset) and call for heat again. It will

repeat this sequence three times. If the temperature still does not rise, it will continue to call for heat. This normally indicates the heating system is not working correctly. You may wish to consult your furnace manufacturer or service person.

The display will indicate CHECK STAT if one of the following occurs.

• One of the buttons is stuck down or in. Check buttons, make sure nothing is pushing them in.

• The thermostat sensor is not functioning. If using a remote sensor, check connections, wiring and power.

• The humidity sensor is not functioning.

After checking the above, press PROGRAM

RUN

to reset the display. If this does not clear the display, disconnect power and remove the batteries for five minutes.

If these checks fail to solve the problem, the thermostat should be replaced.

AdjustaAdjusta

Adjusta

AdjustaAdjusta

le Humidity Displale Humidity Displa

le Humidity Displa

le Humidity Displale Humidity Displa

The room humidity display can be adjusted to read higher or lower by following the configuration menu and adjusting the humidity to a higher or lower value (up to 20% RH). The sensed humidity is calibrated at the factory. If you want to adjust it, refer to the CONFIGURATION section (page 19, step 14).

HumidifierHumidifier

Humidifier

HumidifierHumidifier Maintenance IndicaMaintenance Indica

Maintenance Indica

Maintenance IndicaMaintenance Indica

tortor

tor

tortor

This feature allows the thermostat to display the words CHCK HUMD (check humidifier) after a set time of humidifier operation. This is a reminder to maintain or clean your humidifier. The factory set interval for CHCK HUMD to be displayed is 100 hours of humidifier operation. This can

be set anywhere from 0 to 1975 hours in 25 hour increments. A selection of 00 will cancel this feature.

When CHCK HUMD is displayed, you can clear it by pressing HUM/ FLTR SERVICE button. This resets the timer and starts counting the hours until the next humidifier maintenance.

The following steps will allow you to change the number of hours for humidifier maintenance.

1. If you see CHCK HUMD on the display, press the HUM/FLTR SERVICE button once to reset the timer. Also display will show SET HUMD TIME and will show the number of hours to humidifier maintenance.

2. Press TIME

FWD

or TIME

BACK

to change the time to your requirements.

3. Press PROGRAM

RUN

to return

to the normal operating mode.

Humidifier ControlHumidifier Control

Humidifier Control

Humidifier ControlHumidifier Control and Monitoringand Monitoring

and Monitoring

and Monitoringand Monitoring

When humidity key is pressed in the run mode the actual humidity will be displayed on the left side of the display. HUMD is displayed above the actual humidity. The humidity set point is displayed on the right side of the display.

or key may be pressed to modify the humidity set point. Maximum displayed humidity is 80% RH and minimum displayed humidity is 10% RH. If the heating system is operating and there is a demand for humidity, then the humidifier will operate.

If the demand for humidity is not satisfied for ten consecutive heat cycle operations, the display will show the word HUMD for one second and the word MX for one second signaling maximum possible humidity is reached

with respect to the humidifier’s capability.

PrPr

ammaamma

le le

utomautoma

amma

PrPr

ammaamma

Humidity RHumidity R

Humidity R

Humidity RHumidity R

This feature automatically lowers humidity when the outside temperature drops. This is to prevent the interior windows/walls from reaching the dew point where water condenses on surfaces. To achieve automatic humidity reduction, the thermostat lowers the humidity when furnace cycles are long. When the furnace runs shorter cycles, it increases humidity. For suggested settings see table below.

HI Poorly insulated homes or homes with a lot of condensation on

windows/walls

0 Factory default – no humidity reduction LO Well insulated homes requiring little humidity reduction

le le

eduction.eduction.

eduction.

eduction.eduction.

utoma

utomautoma

tictic

tic

tictic

If your window insulation is poor, you need high humidity reduction. If your window insulation is good, you need low humidity reduction (factory setting).

To adjust this feature, refer to the CONFIGURATION section (page 19, step 15). Selection of 0 will cancel this feature.

Features

FAQs 1F97-391

1. My thermostat is reading in Celsius. How do I change it to Fahrenheit?

Press PROGRAM press TIME Press TIME press PROGRAM

UNUN

UN to make certain the thermostat is in the run program mode, then

UNUN

FWDFWD

FWD and TIME

FWDFWD FWDFWD

FWD until you get to °C then press the

FWDFWD

UNUN

UN to return to normal operation.

UNUN

CKCK

CK at the same time to enter the configuration menu.

CKCK

UP UP

UP or

UP UP

DODO

WN WN

WN arrow to select °F,

DODO

WN WN

2. The display shows the

CHECK BCHECK B

word

CHECK B

CHECK BCHECK B

What does it mean?

3. How do I bypass (not use) the program?

4. What functions do the connecting terminals have on the subbase?

TTERTTER

TTER

TTERTTER

CHECK BCHECK B

CHECK B

CHECK BCHECK B

(not blinking) indicates a loss of power (24 volts) from the heating and cooling equipment to the thermostat, or that the thermostat is operating on battery power only.

To bypass the program and operate the thermostat manually press the MODE button to select Heat or Cool (whichever you prefer) and press or Temp ture setting you choose will be held until you manually change it using the Temp

Temp

temperature and maintain whatever temperature you set. If you decide to return to the program, press PROGRAM

Typical terminals and functions:

HM1=Humidifier System 6=Zone V alv e Y=Cooling System G=Fan Relay W=Heating System HM2=Humidifier System RC= Power (Cooling) RH=Power (Heating)

TTERTTER

TTER

Y on the digital display indicates low batteries. The

TTERTTER

HOLDHOLD

HOLD. Use the Temp

HOLDHOLD

DoDo

wnwn

wn buttons to set the thermostat on the temperature you want. The tempera-

DoDo

wnwn

DoDo

wnwn

wn buttons. The thermostat will remain in the

DoDo

wnwn

UNUN

UN to cancel the hold feature.

UNUN

HOLDHOLD

HOLD mode when you change

HOLDHOLD

TTERTTER

TTER

TTERTTER

SYSY

Y symbol

STEMSTEM

STEM

STEMSTEM

UpUp

Up or

UpUp

FAQs 1F97-391

1F97-3911F97-391

The

5. My furnace (air conditioning) cycles too fast (slow). Is there an adjustment?

1F97-391 has a feature called Adjustable Heating and Cooling Cycle times (also

1F97-3911F97-391

called Anticipation) that allows you to increase or decrease the cycle times in heating and cooling. This is useful if you think your cycle times are too long or too short. The higher the number you select, the longer the cycle. The lower the number you select, the shorter the cycle. The instructions). The range of adjustment for HEATING is from 2 to 40. The factory Preset is

5. The range of adjustment for COOLING is from 9 to 40. The factory Preset is 12. The cooling will not go below 9 because compressors require a longer cycle. See page 20.

1F97-3911F97-391

1F97-391 is adjusted in the configuration menu (see your installation

1F97-3911F97-391

6. Why does the blower fan keep running after the system has shut off?

Normally the blower will turn off within a few minutes after the call for heat or cool. The

ANAN

blower running after the system shuts off may indicate (1) the thermostat is set to

ONON

ON, (2) the fan has been programmed to run at that time period or (3) something has

ONON

damaged the thermostat or equipment. If the thermostat display indicates

AN AN

UTUT

the fan button once to set it to equipment. If the display indicates

ming, the programmed times and temperatures. When you encounter button to remove it from that time period in the program. As a final test, set the thermostat

OFFOFF

OFF. Verify that

OFFOFF

you may want to contact your heating and cooling service person for assistance.

ANAN

AN button was pushed. To remove

ANAN

AN ONAN ON

AN ON or

AN ONAN ON

AN AN

O, meaning the fan will cycle only with the

UTUT

PRPR

G FG F

ANAN

G F

AN (Program Fan), sometime during program-

PRPR

G FG F

ANAN

PRPR

G FG F

ANAN

G F

AN (Program Fan), check all of the

PRPR

G FG F

ANAN

PRPR

G FG F

G F

PRPR

G FG F

AN AN

UTUT

AN AN

O is not displayed. If the fan continues to run,

UTUT

AN ONAN ON

AN ON, press

AN ONAN ON

ANAN

AN, press the

ANAN

FAQs

FAQs 1F97-391

7. Do I have to program a stop time for each program period?

8. My display light does not work. Can it be fixed or replaced?

9. Between Heating and Cooling seasons, I want to turn my system off. Will this change the program?

10. Do I have to reprogram my thermostat after I change the batteries?

There is no need to select a time to stop a programming period. Starting a new programming period will stop the previous program period.

The display light in the from the batteries. If batteries are good, a replacement thermostat would be indicated.

Any time you wish to turn your system off, simply press display shows turn the system back on, press displayed and press RUN. The system will begin operating according to the current thermostat program.

1F97-3911F97-391

The

1F97-391 will retain the last program entered indefinitely without power or batteries.

1F97-3911F97-391

OFFOFF

OFF. This will not affect your thermostat’s programming in any way. To

OFFOFF

1F97-3911F97-391

1F97-391 is not a replaceable item. The display light uses power

1F97-3911F97-391

SYSY

STEMSTEM

STEM button until the

SYSY

STEMSTEM

SYSY

STEMSTEM

STEM button until

SYSY

STEMSTEM

HEAHEA

HEA

HEAHEA

OFFOFF

OFF,

OFFOFF

COOLCOOL

COOL, or

COOLCOOL

UTUT

O is

UTUT

FAQs 1F97-391

11. How can I get an extra copy of the Operating Manual for my thermostat?

12. What do I do if my system is not working properly and I need service?

13. What does

HUMDHUMD

HUMD on the display mean

HUMDHUMD

and how do I reset it?

14. When I push the

HumidityHumidity

Humidity button, it displays

HumidityHumidity HUMD MXHUMD MX

HUMD MX. What does this

HUMD MXHUMD MX

mean?

CHCKCHCK

CHCK

CHCKCHCK

Visit our website at www.white-rodgers.com for operating manuals.

Contact a Local Heating & Cooling service person or visit our website at www.white-rodgers.com to consult our “Where to Buy” Service/Dealer locator.

This feature displays the words humidifier operation. This is a reminder to maintain or clean your humidifier. When

CHCK HUMDCHCK HUMD

CHCK HUMD is displayed, you can clear it by pressing the

CHCK HUMDCHCK HUMD

button.

HUMD MXHUMD MX

HUMD MX indicates the humidifier has not reached the current humidity setting in the

HUMD MXHUMD MX

last 10 heating cycles. If the condition persists, a service person may recommend additional humidifier capacity.

CHCK HUMDCHCK HUMD

CHCK HUMD (check humidifier) after a set time of

CHCK HUMDCHCK HUMD

HUM/FLHUM/FL

HUM/FL

HUM/FLHUM/FL

TR SERTR SER

TR SER

TR SERTR SER

VICEVICE

VICE

VICEVICE

FAQs

TROUBLESHOOTING

SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION

No Heat/No Cool/No Fan (common problems)

1. Blown fuse or tripped circuit breaker.

2. Furnace power switch to OFF.

3. Furnace blower compartment door or panel loose or not properly installed.

Replace fuse or reset breaker.

Turn switch to ON. Replace door panel in proper position to engage safety interlock or door switch.

No Heat

1. Pilot light not lit.

2. Thermostat not set to Heat.

3. Loose connection to thermostat or system.

4. Furnace Lock-Out Condition. Heat may also be intermittent.

Re-light pilot.

SYSY

Press the and raise temperature above room temperature. Verify thermostat and system wires are securely attached. Many furnaces have safety devices that shut down when a lock-out condition occurs. If the heat works intermittently, contact the furnace manufacturer or local service person for assistance.

STEMSTEM

STEM button until Heat is displayed

SYSY

STEMSTEM

SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION

No Heat (cont.)

5. Heating system requires service or thermostat requires replacement.

Diagnostic: Press the displayed and raise the setpoint above room temperature. Within a few seconds the thermostat should

SYSY

make a soft click sound. This sound usually indicates the thermostat is operating properly. If the thermostat does not click, try the reset operation by pressing the

ANAN

AN, TIME

ANAN

CKCK

CK, and the temperature

CKCK

arrow at the same time. If the thermostat does not click after being reset, contact your heating and cooling service person or place of purchase for a replacement. If the thermostat clicks, contact the furnace manufacturer or a service person to verify the heating is operating correctly.

SYSY

No Cool

1. Thermostat not set to Cool.

Press the

STEMSTEM

STEM button to Cool and lower

SYSY

STEMSTEM

temperature below room temperature.

2. Loose connection to thermostat or system.

3. Cooling system requires service or thermostat requires replacement

Verify thermostat and system wires are securely attached. Same procedure as Diagnostic for No Heat condition except set the thermostat to Cool and lower the setpoint below the room temperature. There may be up to a 5 minute delay before the thermostat clicks in

Cooling.

STEMSTEM

STEM button until Heat is

STEMSTEM

DODO

WNWN

DODO

WNWN

Troubleshooting

SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION

Heat, Cool or Fan Runs Constantly

1. Possible short in wiring.

2. Possible short in thermostat.

3. Possible short in heat/cool/fan system.

4. Fan Switch is set to Fan On.

Check each wire connection to verify they are not shorted or touching together. No bare wire should stick out from under terminal screws. Try resetting the thermostat as described in previous Corrective Actions. Also, if the FAN switch is set to the ON position, the blower fan will cycle continuously whether the heating or cooling system is running, move FAN switch to the AUTO position. If the condition persists, the manufacturer of your system or service person can instruct you on how to test the Heat/Cool system for correct operation. If the system operates correctly, replace the thermostat.

Thermostat Setting and Thermostat Thermometer Disagree

Thermostat Does Not Follow Program

1. Thermostat thermometer setting requires adjustment.

1. AM or PM set incorrectly in program.

2. AM or PM set incorrectly on the clock.

3. Voltage spike or static discharge.

The thermometer can be adjusted +/- 5 degrees. See Temperature Display Adjustment in the Configuration Menu Section.

Check current clock and program settings including the AM or PM designations for each time period. If a voltage spike or a static discharge occurs, use the

ANAN

Reset Operation by pressing

DODO

the temperature

WNWN

WN arrow at the same time.

DODO

WNWN

AN,

ANAN

TIME BTIME B

TIME B

TIME BTIME B

CKCK

CK, and

CKCK

SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION

Blank Display and/or Keypad Not Responding

1. Voltage spike or static discharge.

2. Battery change required.

Replace batteries and check heat/cool system for proper operation. If a voltage spike occurs, use the Reset Operation by pressing

DODO

the temperature

WNWN

WN arrow at the same time.

DODO

WNWN

ANAN

AN,

ANAN

TIME BTIME B

TIME B

TIME BTIME B

CKCK

CK, and

CKCK

How do I change the room Humidity display?

The room Humidity display can be adjusted to read higher or lower by following the configuration menu and adjusting the humidity to a higher or lower value (up to 20% RH). To adjust the humidity display refer

CONFIGURACONFIGURA

to the

CONFIGURA

CONFIGURACONFIGURA

TION TION

TION section (page 19, step

TION TION

14).

INDEX

Adjustable Humidity Display ------ 36 Adjustable T emperature Display -- 32 Air Filter Change-out Indicator --- 35 Arm Chair Programming ----------- 31 Automatic Changeover ------------ 32 Automatic Humidity Reduction,

Programmable--------------------- 37 Battery Back-Up --------------------- 33 Compressor Short-Cycle

Protection -------------------------- 35 CONFIGURATION ------------------ 4 Configuration Menu Chart --------- 18 Copy----------------------------------- 25 Daylight Savings Time Button ---- 33 Energy Management Recovery ---- 32 Fan Control, Programmable-------- 33 Factory Preprogrammed ------------ 3 1

FAQs ---------------------------------- 38 FEATURES -------------------------- 30 Humidifier Maintenance Indicator 36 INTRODUCTION-------------------- 2

Thermostat Buttons --------------- 2

Display ------------------------------ 3 Keypad Lockout --------------------- 34 Liquid Crystal Display-------------- 31 Operation

Manual ----------------------------- 24

Programmed----------------------- 24 Program

Entering Y our --------------------- 24

Indefinite Hold-------------------- 3 1

Planning Y our --------------------- 24

Temporary Override-------------- 31

Styles ------------------------------- 24

PROGRAMMING ------------------ 24 Schedule

Sample Programs ----------------- 2 6 Personal Programs---------------- 28

Set

Clock ------------------------------- 24 Day --------------------------------- 24 Program ---------------------------- 24

System and Thermostat

Diagnosis -------------------------- 35

Thermostat Startup After Total

Power Loss ------------------------ 34 Troubleshooting --------------------- 42 Vacation ------------------------------- 33

37-6459A

0339

Index

NONO

TESTES

TES

TESTES

NONO

TESTES

TES

TESTES

The Emerson logo is a trademark and service mark of Emerson Electric Co.

White-Rodgers is a division

of Emerson Electric Co.

Printed in U.S.A.

PART NO. 37-6459A

0339

Emerson 1F97-391 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual