1F97W-71
7-Day Electronic Digital Thermostat
WHITE-RODGERS
INSTALLATION INSTRUCTIONS
Operator: Save these instructions for future use!
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY
BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE
PERSONAL INJURY AND/OR PROPERTY DAMAGE.
DESCRIPTION
This wall-mounted, low voltage thermostat maintains
room temperature by controlling the operation of heating
and cooling systems. The user may program up to four
time/temperature settings per 24 hour period. The ther-
mostatstoresindependentheatingandcoolingprograms
for each day of the week. The thermostat will store both
heating and cooling programs simultaneously. Three
"AA" Energizer® batteries will maintain the stored pro-
gram for approximately one year, if incoming power
should fail. If power failure is extensive and the program
is lost, after power restoration, the thermostat will auto-
maticallymaintainafactorypreprogrammedheatingtem-
perature of 64°F or a cooling temperature of 82°F.
WHITE-RODGERS
PRECAUTIONS
Ifindoubtaboutwhetheryourwiringismillivolt,line,orlow Do not exceed the specification ratings.
voltage, have it inspected by a qualified heating and air
conditioning contractor, electrician, or someone familiar All wiring must conform to local and national electrical
with basic electricity and wiring.
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.
CONTENTS
Description ......................................................... 1
Precautions ........................................................ 1
Specifications..................................................... 2
Installation.......................................................... 2
New Installation
CAUTION
!
To prevent electrical shock and/or equipment
damage, disconnect electric power to system, at
mainfuseorcircuitbreakerbox,untilinstallation
is complete.
Select Thermostat Location
Route Wires to Location
Replacement Installation
Remove Old Thermostat
Attach Subbase to Wall
Attach Thermostat to Subbase
Operation ........................................................... 6
System Configuration
WARNING
!
Do not use on circuits exceeding specified volt-
age. Higher voltage will damage control and
could cause shock or fire hazard.
A. Set Group A Option Switches
B. Set Group B Option Switches
C. Electric Heat Systems
Do not short out terminals on gas valve or pri-
marycontroltotest. Shortorincorrectwiringwill
burn out thermostat and could cause personal
injury and/or property damage.
Check Thermostat Operation
Fan Operation
Heating System
Cooling System
Troubleshooting
WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO.
9797 REAVIS ROAD
ST. LOUIS, MISSOURI 63123
PART NO. 37-5091A
Printed in U.S.A.
9139
R
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TABLE 1. OLD THERMOSTAT IDENTIFICATION
REPLACEMENT INSTALLATION
OLD
OLD THERMOSTAT
THERMOSTAT
REMOVE OLD THERMOSTAT
TERMINAL IDENTIFICATION
TYPE
Type
1. Shut off electricity at the main fuse box until installa-
tion is complete. Verify power is off with a voltmeter.
4
RH
M
W
W
H
RC
RC
V
Y
Y
G
G
F
1
Type
2
2. Remove the front cover of the old thermostat. With
wires still attached, remove wall plate from the wall.
Type
3
3. If the old thermostat has a wall mounting plate,
removethethermostatandthewallmountingplateas
an assembly.
C
Type
4
R5
R
4
Y6
Y
G
G
4. FOR HEATING ONLY SYSTEMS — Disconnect the
two wires from the old thermostat. Skip steps 5
through7belowandproceedtoATTACHSUBBASE
TO WALL.
Type
5
W
TABLE 2. WIRE IDENTIFICATION LABELS
5. FOR HEATING/COOLING SYSTEMS — Before re-
moving wires from old thermostat, identify the termi-
nals that have wires attached on the old thermostat.
ThenuseTable1toidentifythetypeofthermostatyou
are replacing. For example, if the old thermostat has
wires attached to terminals R, W, Y, and G, the old
thermostat is a type 5 (note that the old thermostat
may not have wires attached to all the terminals
identified in Table 1).
Type New Old New Old New Old New Old New Old
1
RH
4
W
W
RC RC
Y
Y
G
G
Type New Old New Old New Old New Old New Old
RH RH RC RC
2
W
W
Y
Y
G
G
Type New Old New Old New Old New Old New Old
RH RC
3
M
W
H
V
Y
C
G
F
6. Use the self-adhesive labels enclosed with your
new thermostat to identify the wires attached to
the old thermostat. The labels correspond to the
thermostattypenumberyouidentifiedinstep5above
(seeTable2). Forexample,ifyoudeterminedthatthe
old thermostat is a type 5, use the labels for the type
5 thermostat (you may not use all the labels for the
type number you've identified if the old thermostat did
not have wires attached to all the terminals).
Type New Old New Old
RH R5
New Old New Old
Y6
4
W
4
Y
G
G
Type New Old New Old
RH
New Old New Old
5
R
W
W
Y
Y
G
G
7. Labeleachwireasyoudisconnectit. Thelabelshave
both the old terminal markings and the new terminal
identification. Discard any unused labels. PULL AT
LEAST SIX INCHES OF WIRE OUT OF THE WALL
WHEN YOU DISCONNECT IT - DO NOT ALLOW
THE WIRES TO FALL BACK INTO THE WALL.
PULL STRAIGHT OUT
ATTACH SUBBASE TO WALL
Figure 2. Removing thermostat from subbase
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
gently pull straight out (see Fig. 2). The thermostat
has pin and socket connectors. Forcing or prying on
the thermostat will cause damage to the unit.
Expansion
Plugs
Connect wires under
terminal screws
S1 S2 S3
Activity
Mounting
Hole
Light
6
W
RC
G
6-pin Connector
MV
Mounting
Hole
2. Pull wires through opening in the center of the sub-
base. DO NOT LET WIRES FALL BACK INTO
WALL.
Y
RH
3-pin Connector
3. Connect wires beneath terminal screws on subbase
using appropriate wiring schematic (see Figs. 3
through 11).
4. Place subbase over hole in wall and mark mounting
hole locations on wall using subbase as a template.
Pull wires through
this opening
(Installation instructions continue on page 5.)
Figure 3. Subbase
3
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NOTE
CAUTION
!
All wiring diagrams are for typical systems only. Refer to
equipment manufacturers' instructions for specific sys-
tem wiring information.
To prevent electrical shock and/or equipment
damage, disconnect electrical power at the main
fuse box or circuit breaker until installation is
complete.
From heating system
From 24vAC transformer
THERMOSTAT
Y
6
MV
G
W
RC
RH
6
W
RC
G
SYSTEM
MV
Heating
System
Hot
Y
24vAC
120vAC
RH
Neutral
TRANSFORMER
Thermostat Terminal Connections
Figure 4. Typical Wiring Diagram for Heating Only, 2-Wire, Single Transformer Systems
From 24vAC
transformer
From heating system
JUMPER
WIRE
THERMOSTAT
SYSTEM
6
W
RC
G
Y
6
MV
G
W
RC
RH
MV
NOTE
Fan
Heating
System
RED jumper wire (pro-
vided with thermostat)
must be connected be-
tween thermostat's RH
and RC terminals for pro-
per thermostat operation
with this system.
Relay
Hot
Y
24vAC
120vAC
RH
From fan relay
Neutral
CONNECT red jumper
wire (provided)
TRANSFORMER
Thermostat Terminal Connections
Figure 5. Typical Wiring Diagram for Heat Only, 3-Wire, Single Transformer Systems
From 24vAC
transformer
THERMOSTAT
Y
6
MV
G
W
RC
RH
6
W
RC
G
SYSTEM
MV
Cooling
System
Fan
Relay
Hot
Y
24vAC
120vAC
From fan relay
From cooling system
RH
Neutral
TRANSFORMER
Thermostat Terminal Connections
Figure 6. Typical Wiring Diagram for Cool Only, 3-Wire, Single Transformer Systems
From heating system
CONNECT red jumper
wire (provided)
JUMPER
WIRE
THERMOSTAT
SYSTEM
Y
6
MV
G
W
RC
RH
6
W
RC
G
W
MV
RH
NOTE
Cooling
System
Fan
Heating
System
RED jumper wire (pro-
vided with thermostat)
must be connected be-
tween thermostat's RH
and RC terminals for pro-
per thermostat operation
with this system.
Relay
Hot
Y
24vAC
120vAC
From fan relay
Neutral
From cooling system
From 24vAC
transformer
TRANSFORMER
Thermostat Terminal Connections
Figure 7. Typical Wiring Diagram for Heat/Cool, 4-Wire, Single Transformer Systems
4
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From millivolt system
THERMOSTAT
SYSTEM
Y
6
MV
G
W
RC
RH
6
W
RC
G
MV
Millivolt
System
Y
RH
From millivolt system
Thermostat Terminal Connections
Figure 8. Typical Wiring Diagram for Millivolt Systems
From millivolt system
From 24vAC
transformer
THERMOSTAT
Y
6
MV
G
W
RC
RH
6
W
RC
G
SYSTEM
MV
Millivolt
System
Cooling
System
Fan
Hot
Relay
24vAC
120vAC
Y
Neutral
RH
TRANSFORMER
From fan relay
From cooling system
Thermostat Terminal Connections
Figure 9. Typical Wiring Diagram for Millivolt Systems + Cool Only, 3-Wire Systems
From zone valve
THERMOSTAT
SYSTEM
6
W
RC
G
Y
6
MV
G
W
RC
RH
MV
6
1
4
2
5
Zone
Valve
Hot
Y
24vAC
120vAC
RH
From 24vAC transformer
(through zone valve)
Neutral
TRANSFORMER
Thermostat Terminal Connections
Figure 10. Typical Wiring Diagram for Heat Only, 3-Wire, Zone Valve Systems
From heating system
From 24vAC
cooling transformer
THERMOSTAT
Y
6
MV
G
W
RC
RH
SYSTEM
Hot
6
W
RC
G
CAUTION
!
MV
24vAC
Cooling
System
Fan
Heating
System
120vAC
See HEAT/COOL, 5-WIRE
SYSTEMS section below
to determine whether
this thermostat can be
used with your system.
Relay
Neutral
HEATING TRANSFORMER
Y
From fan relay
RH
Hot
From cooling system
24vAC
120vAC
Neutral
From 24vAC
heating transformer
COOLING TRANSFORMER
Thermostat Terminal Connections
Figure 11. Typical Wiring Diagram for Heat/Cool, 5-Wire, Two-Transformer System
5. Move subbase out of the way. Drill mounting holes.
affect thermostat operation.) If you are using existing
mounting holes, or if holes drilled are too large and do
not allow you to tighten subbase snugly, use plastic
expansion plugs to secure subbase.
6. Fasten subbase loosely to wall, as shown in Fig. 3,
using two mounting screws. Place a level against
bottom of subbase, adjust until level, and then tighten
screws. (Leveling is for appearance only and will not 7. Push excess wire into wall and plug hole with a fire-
resistant material (such as fiberglass insulation) to
prevent drafts from affecting thermostat operation.
5
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pin connectors and the plastic snaps lock into place (see
Fig. 12). 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.
ATTACH THERMOSTAT TO SUBBASE
IT IS RECOMMENDED THAT YOU SET OPTION
SWITCHESTODESIREDPOSITIONBEFOREATTACH-
ING ON SUBBASE (see OPERATION). IT IS ALSO
RECOMMENDED THAT YOU PROGRAM THE
THERMOSTAT WITH BATTERIES INSTALLED BE-
FORE ATTACHING ON SUBBASE (see OPERATION
GUIDE for programming instructions).
CAUTION
!
POWER TO THERMOSTAT MUST BE OFF BE-
FORE ATTACHING THERMOSTAT TO WALL.
FAILURE TO TURN OFF POWER BEFORE AT-
TACHING THERMOSTAT MAY CAUSE EQUIP-
MENT DAMAGE DUE TO RAPID COMPRESSOR
CYCLING.
To attach thermostat to subbase, line up the plastic snap
guides at the bottom of the thermostat and the three
connector pins on the thermostat with the connectors
near the bottom left section of the subbase (when viewed
from the front). Gently pivot the thermostat up until the six
ENGAGE TWO LOWER GUIDES;
PIVOT UP
Figure 13. Attaching thermostat to subbase
OPERATION
Batteries
6-pin Connector
SYSTEM CONFIGURATION
A. SET GROUP A OPTION SWITCHES
NOTE
ANY TIME GROUP B OPTION SWITCHES ARE
CHANGED,THE"AA"BATTERIESMUSTBEREMOVED
FOR A MINIMUM OF 2 MINUTES. DO NOT REMOVE
THE BATTERIES WHEN CHANGING GROUP A OP-
TION SWITCHES.
(Group A)
(Group B)
Option Switches
3-pin Connector
Figure 13. Back of Thermostat
B. SET GROUP B OPTION SWITCHES
NOTE
1. Total Keypad Activity
ON
Switch #1 OFF
Switch #2 OFF
1
2
2. Total Keypad Lockout — All thermostat buttons are
ANY TIME GROUP B OPTION SWITCHES ARE
CHANGED,THE"AA"BATTERIESMUSTBEREMOVED
FOR A MINIMUM OF 2 MINUTES. DO NOT REMOVE
THE BATTERIES WHEN CHANGING GROUP A OP-
TION SWITCHES.
disabled.
ON
Switch #1 ON
Switch #2 OFF
1
2
1. AutomaticChangeover(Heating/CoolingSystems
Only) — enables thermostat to automatically switch
between heating and cooling programs to maintain
desired room temperature.
ON
Switch #1 ON
Switch #2 OFF
Switch #3 (see step B5)
1
2
3
6
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2. Manual Changeover (Heating/Cooling Systems
HEATING SYSTEM
Only)
ON
SYSTEM
HEAT-OFF-COOL-AUTO
Switch #1 OFF
1. Press
untilHEATisdisplayed(itmayalready
Switch #2 OFF
Switch #3 (see step B5)
be displayed).
2. Press to adjust thermostat above room tem-
1
2
3
3. Heat Only Systems
perature to call for heat. The heating system should
begin to operate.
ON
Switch #1 OFF
Switch #2 ON
Switch #3 (see step B5)
1
2
3
COOLING SYSTEM
4. Cool Only Systems
CAUTION
!
ON
Switch #1 ON
Topreventcompressorand/orpropertydamage,
if power to the compressor has been off or
interrupted for more than 1 hour and the outdoor
temperature is below 50°F, DO NOT operate the
system for at least the amount of time the com-
pressor was off! This will allow the compressor
heaters to warm the compressor oils to avoid
damage due to slugging.
Switch #2 ON
Switch #3 (see step B5)
1
2
3
5. Computed Energy Management Recovery (EMR)
— With EMR enabled, system will be energized
before the next program period begins, to achieve
programmed temperature by the beginning of the
next program period.
ON
Switch #1 (see steps B1–B4)
SYSTEM
HEAT-OFF-COOL-AUTO
Switch #2 (see steps B1–B4)
1. Press
2. Press
until COOL is displayed.
to adjust thermostat below room tem-
Switch #3 OFF
1
2
3
perature to call for cool. The blower should come on
immediately, followed by cold air circulation. How-
ever, iftheredLEDonthethermostatfrontisflashing,
the compressor lockout feature is operating (see
Lockout Bypass Option to temporarily override the
compressor lockout feature during testing).
C. ELECTRIC HEAT SYSTEMS
For central electric heat systems where the blower is
energized by a separate circuit through the fan relay
(meaning that the fan turns on immediately on call for
heat), clipwireW14onthebackofthethermostat(seefig.
13). If the thermostat is energizing electric heat sequenc-
ers, DO NOT clip wire W14.
After the system has been checked and is running prop-
erly, determine if automatic changeover is desired (see
SYSTEM CONFIGURATION).
CHECK THERMOSTAT OPERATION
LOCKOUT BYPASS OPTION
NOTE
FOR QUALIFIED SERVICE TECHNICIANS’ USE
ONLY. OPERATORS SHOULD NOT USE THIS
FEATURE DUE TO POSSIBILITY OF EQUIPMENT
ORPROPERTYDAMAGE,ORPERSONALINJURY.
When checking thermostat, Group B option switches #1
and #2 for automatic changeover must be in the OFF
position. Thiswillallowtemporarysettingofheatsetpoints
abovecoolsetpoints. Aftersystemcheckout,resetGroup
Boptionswitch#1to ONpositionifautomaticchangeover
is desired (see SET GROUP B OPTION SWITCHES).
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
VIEW
FAN OPERATION
1. Turn on power to the system. If the heat source has
a standing pilot, be sure to light it.
whiletestingthermostatoperation,simplypress
TEMP
FAN
ON – AUTO
2. Press
untilFANONisdisplayed. Theblower
VIEW
and
buttons at the same time at initial startup.
PRGM
should begin to operate (this will work only on sys-
tems with a G terminal).
DO NOT USE THE LOCKOUT BYPASS OPTION
UNLESSTHECOMPRESSOROILHEATERSHAVE
BEEN OPERATIONAL FOR 6 HOURS AND THE
SYSTEM HAS NOT BEEN OPERATIONAL FOR AT
LEAST 5 MINUTES.
FAN
ON – AUTO
3. Press
until FAN AUTO is displayed. The
blower should stop operating within approximately
one minute.
7
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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 ther-
mostat.
If you need further information about this product, please write to:
WHITE-RODGERS
Division of Emerson Electric Co.
9797 Reavis Road
St. Louis, MO 63123
ATTN: Technical Service Department
WARRANTY INFORMATION
THISWARRANTYSTATEMENTSUPERSEDESALLWARRANTY
STATEMENTS DATED PRIOR TO MARCH 1, 1988.
This warranty extends only to persons or organizations who
purchase the Products for resale. THE FOREGOING CONSTI-
TUTES SELLER’S SOLE RESPONSIBILITY UNDER THIS WAR-
RANTY, AND PURCHASER’S EXCLUSIVE REMEDY FOR
BREACH THEREOF. EXCEPT AS OTHERWISE EXPRESSLY
SET FORTH IN THIS AGREEMENT, THERE ARE NO OTHER
WARRANTIES, EXPRESS OR IMPLIED, WHETHER OF MER-
CHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
OTHERWISE. SELLER SHALL NOT BE LIABLE FOR ANY
SPECIAL,INDIRECT,INCIDENTALORCONSEQUENTIALDAM-
AGES IN CONNECTION WITH THE SALE, RESALE OR USE OF
THE PRODUCTS.
White-Rodgers Division of Emerson Electric Co. (“Seller”) war-
rants that its products purchased for resale (the “Products”) will be
free from defects in material and workmanship under normal use
and service for a period of twelve (12) months from date of
installation. Seller’sobligationunderthiswarranty,andPurchaser’s
exclusive remedy for the breach thereof, shall be limited to, at
Seller’s option, Seller’s replacement of any defective Product
F.O.B.Seller’sfactory,orSeller’sissuanceofacreditintheamount
of the purchase price of such Product for resale as described
below. Seller shall have the option of requiring the return of any
defective Product, transportation charges prepaid, before recog-
nizing any claim. This warranty shall not apply to any Product (1)
which has been repaired or altered outside Seller’s factory or by
other than Seller in any manner so as, in Seller’s judgement, to
affect its serviceability or proper operation; (2) which has been
subjected by persons other than Seller to improper handling,
operation, maintenance, repair or alteration; or (3) which has been
subjected to misuse, negligence, or accident.
Complete warranty information and instructions for replacing/
returning warranty products can be found in the White-Rodgers
Product Catalog, or by telephoning or writing to:
White-Rodgers Division
Emerson Electric Co.
9797 Reavis Road
St. Louis, Missouri 63123-5329
(314) 577-1300
WARRANTY INFORMATION FOR CONSUMERS
When you purchase a White-Rodgers Division product, it is typi-
cally for replacement of a device which has failed on existing
residential or commercial equipment, or a component of new
equipment purchased for modernization.
While our warranty does not extend to you, your contractor or
dealer is protected by a one-year product warranty from White-
Rodgers. Your supplier can rely on a nearby White-Rodgers
wholesaler for prompt credit or replacement.
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