White Rodgers 1F95-71 User manual

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 compo-

nents could cause the control to malfunction.

To prevent electrical shock and/or equipment

damage, disconnect electric power to system at

mainfuseorcircuitbreakerboxuntilinstallation

is complete.

Do not use on circuits exceeding specified volt-

age. Higher voltage will damage control and

could cause shock or fire hazard.

Do not short out terminals on gas valve or pri-

marycontroltotest.Shortorincorrectwiringwill

burn out heat anticipator and could cause per-

sonal injury and/or property damage.

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY

BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE

PERSONAL INJURY AND/OR PROPERTY DAMAGE.

PART NO. 37-4501D

9540

DESCRIPTION

Printed in U.S.A.

1F95-71

7 Day Multi-stage Electronic Digital Thermostat

with Programmable Fan

WHITE-RODGERS

CONTENTS

Description..........................................................1

Precautions........................................................ 1

Specifications......................................................2

Installation...........................................................2

New Installation

Select Thermostat Location

Route Wires to Location

Replacement Installation

Remove Old Thermostat

Attach Subbase to Wall

Attach Thermostat to Subbase

Operation ............................................................6

System Configuration

Set Option Switches

Check Thermostat Operation

Fan Operation

Heating System Operation

Cooling System Operation

Troubleshooting

PRECAUTIONS

Ifindoubtaboutwhetheryourwiringismillivolt,line,orlow

voltage, have it inspected by a qualified heating and air

conditioning contractor, electrician, or someone familiar

with basic electricity and wiring.

Do not exceed the specification ratings.

This wall-mounted, low voltage thermostat maintains

room temperature by controlling the operation of multi-

stage systems. Use this thermostat for applications re-

quiring up to three stages of heat and up to two stages of

cool. Indicator lights show the system status. The user

mayprogramuptofourtimeandtwotemperaturesettings

per24hourperiodand may programeachdayindepend-

ently. The thermostat will store both heating and cooling

programs simultaneously. A 9 volt Energizer®battery will

maintainthestoredprogramforapproximatelyoneweek,

if incoming power should fail. If power failure is extensive

and the program is lost, after power restoration, the

thermostat will automatically maintain a factory

preprogrammedheatingtemperatureof64°Foracooling

temperature of 82°F.

CAUTION

WARNING

WHITE-RODGERS DIVISION

EMERSON ELECTRIC CO.

9797 REAVIS ROAD

ST. LOUIS, MISSOURI 63123-5398

Operator: Save these instructions for future use!

INSTALLATION INSTRUCTIONS

Approximately

5 feet from floor

⁄

” hole for

thermostat wire

Stout cord with 6”

chain attached

Baseboard

strip moulding

⁄

” guide hole

for sighting

Quarter round

removed

⁄

” hole in floor of partition

Hooked wire for snagging chain

Figure 1. Routing thermostat wires

SPECIFICATIONS

THIS CONTROL IS DESIGNED FOR USE WHERE BOTH SIDES OF THE TRANSFORMER ARE PRESENT TO

THE THERMOSTAT (both the hot and common sides of the 24 VAC end of the transformer.)

ELECTRICAL DATA

Electrical Rating

20 to 30 VAC 50/60 Hz.

0.01 to 1.5 Amps (Load per terminal)

2.5 Amps Maximum Total Load (All terminals com-

bined)

Anticipation:

Heating 4 to 40

Cooling 4 to 40

STAGING DATA

Up to 3 heating stages

Up to 2 cooling stages

THERMAL DATA

Setpoint Temperature Range:

40°F to 99°F (4°C to 37°C)

Operating Ambient Temperature Range:

32°F to 105°F

Operating Humidity Range:

0 to 90% RH (non-condensing)

Shipping Temperature Range:

-40°F to 150°F

ACCESSORIES

Remote Sense Kit W.R. Part No. F145-1049

Thermostat Guard W.R. Part No. F29-0198 (clear) or

F29-0238 (opaque)

}Reference Values

INSTALLATION

NEW INSTALLATION

IT IS RECOMMENDED THAT YOU PROGRAM THE

THERMOSTATWITHBATTERYINSTALLEDBEFORE

ATTACHINGONSUBBASE. SEE OPERATION GUIDE

FOR PROGRAMMING INSTRUCTIONS.

Select Thermostat Location

Proper location insures that the thermostat will provide a

comfortable building temperature. Observe the following

general rules when selecting a location:

1. Locate thermostat about 5 ft. above the floor.

2. Install thermostat on a partitioning wall, not on an

outside wall.

3. Never expose thermostat to direct light from lamps,

sun, fireplaces or any temperature radiating equip-

ment.

4. Avoid locations close to windows, adjoining outside

walls, or doors that lead outside.

5. Avoid locations close to air registers or in the direct

path of air from them.

6. Makesuretherearenopipes or ductworkinthatpart

of the wall chosen for the thermostat location.

7. Never locate thermostat in a room that is normally

warmer or cooler than the rest of the building.

8. Avoid locations with poor air circulation, such as

behind doors or in alcoves.

Route Wires To Location

All wiring must conform with local and national electrical

codes and ordinances.

1. Probe for obstructions in partition before drilling 1⁄2”

hole in wall at selected location. Take up quarter

roundanddrillasmallguideholeforsighting(seefig.

1). From basement, drill 3⁄4”holein partition floor next

to guide hole. In houses without basements, drill 1⁄2”

holethroughceilingandintopartitionfromabove(see

fig. 1).

2. Through this hole drop a light chain, or 6” chain

attachedtoastrongcord.Snagcordinbasementwith

hookedwire.Inhouseswithoutbasements,dropcord

through hole in ceiling and down partitioning; snag

cord at the thermostat location.

3. Attach thermostat wire to cord and pull wire through

hole in wall so that 6” of wire protrudes.

NOTE

TABLE 1. TERMINAL REFERENCE

LABEL

NUMBER

1F95

TERMINAL

DESIGNATION FUNCTION

OLD THERMOSTAT

TERMINAL

DESIGNATION

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

(11)

(12)

(13)

Fan Output

Transformer 24 VAC Common

Transformer 24 VAC Hot

Changeover Output (Cooling)

Changeover Output (Heating)

Stage 1 Cool

Stage 2 Cool

Stage 1 Heat

Stage 2 Heat

Stage 3 Heat

REPLACEMENT INSTALLATION

Remove Old Thermostat

1. Shut off electricity at the main fuse box until installa-

tion is complete. Verify power is off with a voltmeter.

2. Remove the front cover of the old thermostat. With

wiresstillattached,removewallplatefromthewall.

3. If the old thermostat has a wall mounting plate,

removethethermostatandthewallmountingplateas

an assembly.

4. UsetheCrossReferenceGuidetofindthethermostat

type you are replacing.

5. Identify each wire attached to the old thermostat

using the labels enclosed with the new thermo-

stat. Record the identification of the wire on the

corresponding blank in Table 1.

6. Disconnect the wires from old thermostat one at a

time.Pullatleast6inchesofwireoutofthewall. DO

NOT LET WIRES FALL BACK INTO THE WALL.

7. Install new thermostat using the following proce-

dures.

Attach Subbase To Wall

1. Remove the packing material from the thermostat.

Place the fingers of one hand on the center top and

bottom portion of the thermostat. Grasp the subbase

in the other hand on the top and bottom center, and

gentlypullstraightout(seefig.2).Thethermostathas

pin and socket connectors. Forcing or prying on the

thermostat will cause damage to the unit.

THIS THERMOSTAT REQUIRES BOTH THE HOT

AND COMMON SIDES OF THE 24 VAC TRANS-

FORMER TO BE PRESENT TO THE THERMOSTAT

FOR OPERATION.

2. Connect wires beneath terminal screws on subbase

using wiring schematic for your particular application

(see figs. 3 through 6).

3. Place subbase over hole in wall and mark mounting

hole locations on wall using subbase as a template.

4. Move subbase out of the way. Drill mounting holes.

5. Fasten subbase loosely to wall, as shown in fig. 3,

using two mounting screws. Place a level against

bottomofsubbase,adjustuntillevel,andthentighten

screws. (Leveling is for appearance only and will not

PULL STRAIGHT OUT

Figure 2. Removing thermostat from subbase

NOTE

Mounting

hole

Pull wires through

this opening

Connect wires under

terminal screws

Mounting

hole

4-pin connector

9-pin connector

Screw

anchors

Figure 3. Subbase

S1 S2 S3

CRGBO

CHANGEOVER

ENERGIZED

IN HEAT

CHANGEOVER

ENERGIZED

IN COOL

COMPRESSOR

CONTACTOR

STAGE 1

FAN

RELAY

HEAT

RELAY

STAGE 1

HEAT

RELAY

STAGE 2

HEAT

RELAY

STAGE 3

THERMOSTAT

CONTROL

CIRCUIT

COMPRESSOR

CONTACTOR

STAGE 2

24 VAC 120 VAC

HOT

NEUTRAL

THERMOSTAT

SYSTEM

Y1 Y2 W1 W2 W3

Figure 4. Typical wiring diagram for single transformer systems

To prevent electrical shock and/or equipment

damage,disconnectelectrical power at the main

fuse box until installation is complete. Verify

power is off with a voltmeter.

DONOTEXCEEDMAXIMUMVOLTAGEORCUR-

RENTRATINGS.FIRE,PERSONALINJURY,AND/

OR EQUIPMENT DAMAGE COULD RESULT.

NOTE

TABLE 2. WIRE IDENTIFICATION LABELS

affectthermostat operation.) Ifyou are using existing

mountingholes,orifholesdrilledaretoolargeanddo

not allow you to tighten subbase snugly, use plastic

screw anchors to secure subbase.

6. Push excess wire into wall and plug hole with a fire-

resistant material (such as fiberglass insulation) to

prevent drafts from affecting thermostat operation.

WARNING

CAUTION

The following wiring diagrams show typical terminal

identification and wiring. For proper installation, refer to

the original manufacturers’ instructions.

CAUTION

NOTE

O B

CHANGEOVER

ENERGIZED

IN HEAT

CHANGEOVER

ENERGIZED

IN COOL

FAN

RELAY

HEAT

RELAY

STAGE 1

HEAT

RELAY

STAGE 2

HEAT

RELAY

STAGE 3

THERMOSTAT

CONTROL

CIRCUIT

24 VAC 120 VAC

HOT

NEUTRAL

THERMOSTAT

SYSTEM

COMPRESSOR

CONTACTOR

STAGE 1

COMPRESSOR

CONTACTOR

STAGE 2

Y2 W1 W2 W3

Figure 5. Typical wiring diagram for two-transformer systems with NO safety circuits

TWO COMMONS MUST

BE JUMPERED TOGETHER!

HOT

NEUTRAL

120 VAC 24 VAC

CUT AND

TAPE OFF!

DEPENDING ON SYSTEM

REQUIREMENTS, REPLACE WITH

A 75VA TRANSFORMER, IF NEEDED

Relaycontactsshownarethermostaticallyoperated.The

accessory relay scheme is required when safety circuits

exist in both systems.

Polarity must be observed. If the HOT side of the

secondtransformerisjumperedtotheCOMMON

side of the first transformer a short will be made.

Damage to equipment will occur when power is

restored.

IF SAFETY CIRCUITS ARE IN ONLY ONE OF THE

SYSTEMS, REMOVE THE TRANSFORMER OF THE

SYSTEM WITH NO SAFETY CIRCUITS.

O B

CHANGEOVER

ENERGIZED

IN HEAT

CHANGEOVER

ENERGIZED

IN COOL

FAN

RELAY

HEAT

RELAY

STAGE 1

HEAT

RELAY

STAGE 2

HEAT

RELAY

STAGE 3

THERMOSTAT

CONTROL

CIRCUIT

24 VAC 120 VAC

HOT

NEUTRAL

THERMOSTAT

SYSTEM

COMPRESSOR

CONTACTOR

STAGE 1

COMPRESSOR

CONTACTOR

STAGE 2

Y2 W1 W2 W3

Figure 6. Typical wiring diagram for two-transformer systems with safety circuits in BOTH systems

TWO COMMONS MUST

BE JUMPERED TOGETHER!

HOT

NEUTRAL

120 VAC

LIMIT OR

SAFETY

SWITCHES

LIMIT OR

SAFETY

SWITCHES

LIMIT OR

SAFETY

SWITCHES

24 VAC

LIMIT OR

SAFETY

SWITCHES

COMMON

HEATING

TRANSFORMER

COOLING

TRANSFORMER

24 VAC

ACCESSORY

RELAY N.O.

CONTACT

SYSTEM CONFIGURATION

ANY TIME OPTION SWITCHES #1 OR #2 ARE

CHANGED,THE9VOLTENERGIZER®BATTERYMUST

BE REMOVED FOR A MINIMUM OF 2 MINUTES.

Set Option Switches

1. For furnaces not requiring a Gterminal to energize

fan(systemswithfan/limitswitchorautomaticfanon/

off operation):

2. For systems with electric furnace, and where blower

is energized through fan relay (no sequence to ener-

gize blower):

3. Forsystemswith aneconomizerfor firststagecooling:

ENGAGE TWO UPPER GUIDES;

PIVOT DOWN

Figure 7. Attaching thermostat to subbase

Attach Thermostat To Subbase

WERECOMMENDTHATYOUSETOPTIONSWITCHES

TO DESIRED POSITION BEFORE ATTACHING ON

SUBBASE (see OPERATION). WE ALSO RECOM-

MEND THAT YOU PROGRAM THE THERMOSTAT

WITH BATTERY INSTALLED BEFORE ATTACHING

ON SUBBASE (see OPERATION GUIDE for program-

ming instructions).

USE

SYSTEM

SWITCH

TO TURN THERMOSTAT OFF BEFORE

ATTACHING THERMOSTAT TO WALL. FAILURE TO

TURN THERMOSTAT OFF MAY CAUSE EQUIPMENT

DAMAGE DUE TO RAPID COMPRESSOR CYCLING.

To attach thermostat to subbase, line up the plastic snap

guides at the top of the thermostat and the 4 connector

pins on the thermostat with the connectors near the top

rightsectionofthesubbase(whenviewedfromthefront).

Gently pivot the thermostat down until the 8-pin connec-

tors and the plastic snaps lock into place (see fig. 7). Be

gentle when attaching thermostat. If the thermostat

does not seem to be attaching to the subbase easily,

make sure that the connector pins and plastic snaps are

properly aligned, and that excess wire is pushed into the

wall. Damage to the thermostat may occur if force is

used.

OPERATION

NOTE

Figure 8. Back of thermostat

Option switches 9-pin connector

4-pin connector Battery

Set option switches #1 and #2, install the battery, and

programthethermostatbeforechangingoptionswitch#3

or #4.

4. Toenabletotal keypadlockout(ALLbuttonswillbe

disabled and will not operate until configuration is

changed):

Switch #3 in ON position disables all buttons.

1234

Switch #1 ON

Switch #2 OFF

Switch #3 (see step 4)

Switch #4 (see step 5)

1234

Switch #1 OFF

Switch #2 OFF

Switch #3 (see step 4)

Switch #4 (see step 5)

1234

Switch #1 (see steps 1 & 2)

Switch #2 ON

Switch #3 (see step 4)

Switch #4 (see step 5)

NOTE

1234

Switch #1 (see steps 1-2)

Switch #2 (see step 3)

Switch #3 ON

Switch #4 (see step 5)

CAUTION

Cooling System Operation

Topreventcompressorand/orpropertydamage,

if power to the compressor has been off or

interruptedformorethan 1 hour and the outdoor

temperature is below 50°F, DO NOT operate the

system for at least the amount of time the compres-

sorwasoff!Thiswillallowthecompressorheatersto

warm the compressor oils to avoid damage due to

slugging.

1. Press

SYSTEM

SWITCH

until COOL is displayed.

2. Press to adjust the thermostat to 40°F. All

stages of the cooling system should come on within

fiveminutes(ifthecompressorisnotoperating,itmay

be locked out. See LOCKOUT BYPASS OPTION).

Refer to the OPERATION GUIDE if you need additional

information on thermostat operation.

TROUBLESHOOTING

Refer to the Question & Answer section of the OPERA-

TION GUIDE for information on troubleshooting the

thermostat.

5. To enable partial keypad lockout (only the tem-

peraturebuttonswillfunction;allotherbuttonswillbe

disabled and will not operate until configuration is

changed):

Switch#4inONpositiondisablesallbuttonsexcept

and (see OPERATION GUIDE).

The battery maintains the stored program in the event of

a power failure. When attached to the wall with 24 VAC

powerapplied, the thermostat willfunction normally with-

out the battery. However, the program will be lost in the

event of power interruption or failure if the battery is not

installed. When power is restored, the thermostat will

automaticallymaintainatemperatureof64°Foracooling

temperatureof82°F(factorypreprogrammed)asneeded.

CHECK THERMOSTAT OPERATION

Fan Operation

1. Turn on power to the system. If the heat source has

a standing pilot, be sure to light it.

2. Press

FAN

SWITCH

untilFANONisdisplayed.Theblower

should begin to operate.

3. Press

FAN

SWITCH

until FAN AUTO is displayed. The

blower should stop operating within approximately

one minute.

Heating System Operation

1. Press

SYSTEM

SWITCH

untilHEATisdisplayed(itmayalready

be displayed).

2. Press toadjustthermostatto99°F.Allstagesof

theheatingsystemshouldbegintooperatewithinfive

minutes.

1234

Switch #1 (see steps 1-2)

Switch #2 (see step 3)

Switch #3 (see step 4)

Switch #4 ON

NOTE

CAUTION

LOCKOUT BYPASS OPTION

FOR QUALIFIED SERVICE TECHNI-

CIANS’ USE ONLY. OPERATORS

SHOULD NOT USE THIS FEATURE DUE

TO POSSIBILITY OF EQUIPMENT OR

PROPERTY DAMAGE, OR PERSONAL

INJURY.

DO NOT USE THE LOCKOUT BYPASS

OPTIONUNLESSTHECOMPRESSOROIL

HEATERS HAVE BEEN OPERATIONAL

FOR 6 HOURS AND THE SYSTEM HAS

NOT BEEN OPERATIONAL FOR AT

LEAST 5 MINUTES.

COMPRESSOR SHORT TERM

CYCLE PROTECTION

This thermostat has a built-in short term (5-minute)

time delay. During this 5-minute period, the thermo-

stat will lock out the compressor to allow head pres-

sure to stabilize. If you want to override this feature

whiletestingthermostatoperation,simplypress

VIEW

TEMP

and

VIEW

PRGM

buttons at the same time at initial start-up.

If you need further information about this product, please write to

White-Rodgers Division, Emerson Electric Co.

9797 Reavis Road

St. Louis, MO 63123-5398

Attention: Technical Service Department

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