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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.
Your new White-Rodgers 5-Day/2-Day Digital Multi-stage Ther-
mostat uses the technology of a solid-state microcomputer to
provide precise time/temperature control. This thermostat offers
you the flexibility to design heating and cooling programs that fit
your needs.
Features:
• Separate 5-day (weekday) and 2-day (weekend) programming
with four separate time/temperature periods per program
• Simultaneous heat and cool program storage
• Optional C terminal (dual power option)
• Optional Energy Management Recovery (EMR)
This thermostat is intended for use with a 24-volt system; do not
use this thermostat with a millivolt or line voltage system. If in
doubt about whether your wiring is millivolt, line, or low voltage,
have it inspected by a qualified heating and air conditioning
contractor or electrician.
Do not exceed the specification ratings.
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.
ELECTRICAL DATA
Electrical Rating:
20 to 30 VAC 50/60 Hz. or D.C.
0.05 to 1.5 Amps (Load per terminal)
2.5 Amps Maximum Total Load (All terminals combined)
THERMAL DATA
Setpoint Temperature Range:
45 F to 90 F (7 C to 32 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
WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO.
9797 REAVIS ROAD
ST. LOUIS, MISSOURI 63123-5398
Programmable Electronic
Digital Automatic Changeover Multi-stage Thermostat
OPERATION INSTRUCTIONS
• Optional B and O terminals
• Preprogrammed temperature control
• LCD continuously displays set point, and alternately dis-
plays time and room temperature
• Temperature override until next program period
• Manual program override (HOLD temperature)
•
F/ C convertibility
• Temperature range 45 to 90 F
• Two-stage heat/two-stage cool
• Armchair programming capability
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 voltage.
Higher voltage will damage control and could cause
shock or fire hazard.
Do not short out terminals on gas valve or primary
control to test. Short or incorrect wiring will damage
thermostat and could cause personal injury and/or
property damage.
APPLICATIONS
For use with:
• Heat/cool systems with up to two stages heat, two
stages cool
DO NOT USE WITH:
• Millivolt systems
• Systems exceeding 30 VAC and 2.5 amps
• 3-wire zoned hydronic heating systems
Printed in U.S.A.
1F81-71
INSTALLATION AND
DESCRIPTION
PRECAUTIONS
CAUTION
!
WARNING
!
SPECIFICATIONS
PART NO. 37-5938B
Replaces 37-5938A
9912
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Related Manuals for White Rodgers 1F81-71
Summary of Contents for White Rodgers 1F81-71
-
Page 1: Specifications
Shipping Temperature Range: -40 F to 150 F WHITE-RODGERS DIVISION EMERSON ELECTRIC CO. 9797 REAVIS ROAD ST. LOUIS, MISSOURI 63123-5398 1F81-71 Programmable Electronic Digital Automatic Changeover Multi-stage Thermostat INSTALLATION AND OPERATION INSTRUCTIONS • Optional B and O terminals • Preprogrammed temperature control •... -
Page 2: Pre-Installation Set-Up
INSTALLATION REMOVE OLD THERMOSTAT 1. Shut off electricity at the main fuse box until installation is complete. Ensure that electrical power is disconnected. 2. Remove the front cover of the old thermostat. With wires still attached, remove wall plate from the wall. If the old thermostat has a wall mounting plate, remove the thermostat and the wall mounting plate as an assembly. -
Page 3: Wiring
NOTE The following wiring diagrams show typical terminal identifica- tion and wiring. For proper installation, refer to the original manufacturer's instructions. Compressor Energized Contactor in COOL Stage 2 Compressor Energized Contactor in HEAT Stage 1 Figure 3. Typical wiring diagram for single transformer systems CUT AND TAPE OFF! Compressor... -
Page 4: Check Thermostat Operation
CHECK THERMOSTAT OPERATION NOTE If at any time during testing, your system does not operate properly, contact a qualified serviceperson. Fan Operation 1. Turn on power to the system. 2. Press SYSTEM button until the system is OFF. 3. Move FAN switch to ON. The blower should begin to operate. 4. -
Page 5: Operation
Before you begin programming your thermostat, you should be familiar with its features and with the display and the location and operation of the thermostat buttons. Your thermostat consists of two parts: the thermostat cover and the base. To remove the cover, gently pull it straight out from the base. -
Page 6: Programming Your Thermostat
• TEMPERATURE DISPLAY ADJUSTMENT — Your new thermostat has been accurately set in our factory. However, if you wish, you may adjust your new thermostat tempera- ture display to match your old thermostat. This can be accomplished (within a 4 F range) as follows: 1. -
Page 7: Check Your Programming
MO TU WE TH FR EXAMPLE: This display window shows that for the 1st weekday period, the start time is 6:00 AM, and 70 is the programmed temperature (this example reflects factory preprogramming). 4. Press to change the displayed temperature to your selected temperature for the 1st heating program period.