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WHITE-RODGERS
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.
This wall-mounted, low voltage thermostat maintains
room temperature by controlling the operation of multi-
stage systems.
Use this thermostat for applications
requiring up to three stages of heat and up to two stages
of cool. Indicator lights show the system status. The user
may program up to four time/temperature settings per 24
hour period. The thermostat stores programs for seven
independent days. The thermostat will store both heating
and cooling programs simultaneously. A 9 volt Energizer
battery will maintain the stored program for approximately
one week, if incoming power should fail. If power failure
is extensive and the program is lost, after power restora-
tion, the thermostat will automatically maintain a factory
preprogrammed heating temperature of 64°F or a cooling
temperature of 82°F.
If in doubt about whether your wiring is millivolt, line, or low
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.
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 ........................................................... 5
System Configuration
Set Option Switches
Check Thermostat Operation
Fan Operation
Heating System
Cooling System
Troubleshooting
WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO.
9797 REAVIS ROAD
ST. LOUIS, MISSOURI 63123-5398
R
Multi-stage Electronic Digital Thermostat
INSTALLATION INSTRUCTIONS
®
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
main fuse or circuit breaker box, until installation
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-
mary control to test. Short or incorrect wiring will
burn out thermostat and could cause personal
injury and/or property damage.
Printed in U.S.A.
1F94-71
DESCRIPTION
W H I
T E - R
O D G
D IG IT
E R S
A L C O
M F O R
T S E T
I I
PRECAUTIONS
CAUTION
!
WARNING
!
PART NO. 37-4744B
Replaces 37-4744A
9310
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Summary of Contents for White Rodgers 1F94-71
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Page 1: Installation Instructions
1F94-71 WHITE-RODGERS Multi-stage Electronic Digital Thermostat 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 multi- stage systems. -
Page 2: Specifications
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 24vAC end of the transformer.) ELECTRICAL DATA THERMAL DATA Electrical Rating: Setpoint Temperature Range: 20 to 30v AC 50/60 Hz. -
Page 3: Remove Old Thermostat
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 wires still attached, remove wall plate from the wall. PULL STRAIGHT OUT 3. - Page 4 Expansion 2. Connect wires beneath terminal screws on sub- plugs base using appropriate wiring schematic (see figs. Connect wires under terminal screws 3 through 6). 3. Place subbase over hole in wall and mark mounting hole locations on wall using subbase as a template. Mounting S1 S2 S3 4.
- Page 5 NOTE IF SAFETY CIRCUITS ARE IN ONLY ONE OF THE SYSTEMS, REMOVE THE TRANSFORMER OF THE SYSTEM WITH NO SAFETY CIRCUITS. Malfunction Thermostat Light Control Circuit THERMOSTAT SYSTEM Emergency Changeover Heat Compressor Heat System Limit or CUT AND Relay Monitor Energized Relay Contactor...
- Page 6 tors and the plastic snaps lock into place (see fig. 7). Be ATTACH THERMOSTAT TO SUBBASE gentle when attaching thermostat. If the thermostat does not seem to be attaching to the subbase easily, WE RECOMMEND THAT YOU SET OPTION SWITCHES make sure that the connector pins and plastic snaps are TO DESIRED POSITION BEFORE ATTACHING ON properly aligned, and that excess wire is pushed into the...
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Page 7: Check Thermostat Operation
5. Keypad Lockout HEATING SYSTEM NOTE SYSTEM 1. Press until HEAT is displayed (it may al- SWITCH ready be displayed). Option switches #1, #2, and #4 should be changed (if 2. Press to adjust thermostat to 99°F. All stages of required), programming should be completed, and bat- the heating system should begin to operate within tery should be installed before changing option switch #3. -
Page 8: Warranty Information
After the system has been checked and is running prop- EMERGENCY MODE OPERATION erly, determine if automatic changeover is desired (see SYSTEM CONFIGURATION). SYSTEM 1. Press until EMER is displayed. The red Refer to the OPERATION GUIDE if you need additional SWITCH EMER LED should be lit continuously (non-flashing), information on thermostat operation.