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WHITE-RODGERS
Operator: Save these insructions 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 heating
and cooling systems. The user may program up to four
time/temperature settings per 24 hour period. The ther-
mostat stores independent heating and cooling programs
for 5-day (weekday) and 2-day (weekend) periods. The
thermostat will store both heating and cooling programs
simultaneously. Three "AA" Energizer
tain the stored program 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 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.
CONTENTS
Description ......................................................... 1
Precautions ........................................................ 1
Specifications ..................................................... 2
Installation .......................................................... 2
Operation ........................................................... 6
WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO.
9797 REAVIS ROAD
ST. LOUIS, MISSOURI 63123-5398
R
®
batteries will main-
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 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 the 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 burn
out thermostat and could cause personal injury
and/or property damage.
Printed in U.S.A.
1F90-71
5-Day/2-Day Electronic Digital Thermostat
INSTALLATION INSTRUCTIONS
CAUTION
!
WARNING
!
DESCRIPTION
PRECAUTIONS
PART NO. 37-5086B
Replaces 37-5086A
9517
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Table of Contents
Related Manuals for White Rodgers 37-5086A
Summary of Contents for White Rodgers 37-5086A
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Page 1: Table Of Contents
Do not short out terminals on gas valve or primary 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. 1F90-71 DESCRIPTION PRECAUTIONS CAUTION WARNING PART NO. 37-5086B Replaces 37-5086A 9517... -
Page 2: Specifications
SPECIFICATIONS ELECTRICAL DATA Electrical Rating: 17 to 30 VAC, 50/60 Hz. 0.05 to 1.5 Amps 1.5 Amps Maximum Total Load (All terminals combined) Anticipation: Heating 2 to 40 Reference Values Cooling 4 to 40 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:... -
Page 3: Replacement Installation
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. 3. - Page 4 NOTE All wiring diagrams are for typical systems only. Refer to equipment manufacturers’ instructions for specific sys- tem wiring information. Figure 4. Typical wiring diagram for heat only, 2-wire, single transformer systems NOTE RED jumper wire (pro- Relay vided with thermostat) must be connected be- tween...
- Page 5 Millivolt System Figure 8. Typical wiring diagram for millivolt systems Millivolt Cooling System System Relay Figure 9. Typical wiring diagram for millivolt systems + cool only, 3-wire systems Zone Valve Figure 10. Typical wiring diagram for heat only, 3-wire, zone valve systems Cooling System Figure 11.
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Page 6: Attach Thermostat To Subbase
ATTACH THERMOSTAT TO SUBBASE IT IS RECOMMENDED THAT YOU SET OPTION SWITCHES TO DESIRED POSITION BEFORE ATTACH- 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). -
Page 7: Electric Heat Systems
2. Manual Changeover (Heating/Cooling Systems Only) Switch #1 OFF Switch #2 OFF Switch #3 (see step B5) 3. Heat Only Systems Switch #1 OFF Switch #2 ON Switch #3 (see step B5) 4. Cool Only Systems Switch #1 ON Switch #2 ON Switch #3 (see step B5) 5. -
Page 8: Cooling System
COOLING SYSTEM CAUTION To prevent compressor and/or property damage, if power to the compressor has been off or inter- rupted 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.