White Rodgers 1f81-51 User Manual

Page of 8
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.
Printed in U.S.A.
DESCRIPTION
1F81-51
Programmable Electronic
Digital Multi-stage Thermostat
INSTALLATION AND
OPERATION INSTRUCTIONS
PART NO. 37-5854E
Replaces 37-5854D
0004
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)
PRECAUTIONS
SPECIFICATIONS
• 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
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)
1.5 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
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
CAUTION
!
WARNING
!
WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO.
9797 REAVIS ROAD
ST. LOUIS, MISSOURI 63123-5398
WHITE-RODGERS

Summary of Contents of user manual for White Rodgers 1f81-51

  • Page 1 1F81-51 Programmable Electronic WHITE-RODGERS Digital Multi-stage Thermostat INSTALLATION AND OPERATION INSTRUCTIONS Operator: Save these instructions for future use! FAILURE...
  • Page 2INSTALLATION REMOVE OLD THERMOSTAT 1. Shut off electricity at the main fuse box until installation is complete. Ensure that electrical...
  • Page 3 NOTE NOTE The following wiring diagrams show typical terminal identifica- Relay contacts shown are thermostatically operated. tion and wiring....
  • Page 4 CHECK THERMOSTAT OPERATION If the fan is running but the compressor is not running and the word COOL is...
  • Page 5 OPERATION Before you begin programming your thermostat, you should be familiar with its features and with the display and...
  • Page 6Look at the factory preprogrammed times and temperatures 3. Press SET TIME once. The display window will show the shown...
  • Page 77. Repeat steps 4 and 5 to select the start time and heating CHECK YOUR PROGRAMMING temperature for the 2nd...
  • Page 8