White Rodgers 1F90W-51 Specifications download pdf

PART NO. 37-5089A

9139

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-

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

batteries will

maintain 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.

INSTALLATION INSTRUCTIONS

1F90W-51

5-Day/2-Day Electronic Digital Thermostat

PRECAUTIONS

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.

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.

CAUTION

WARNING

WHITE-RODGERS

Printed in U.S.A.

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 ........................................................... 6

System Configuration

Electric Heat Systems

Energy Management Recovery (EMR)

Check Thermostat Operation

Fan Operation

Heating System

Cooling System

Troubleshooting

WHITE-RODGERS

WHITE-RODGERS DIVISION

EMERSON ELECTRIC CO.

9797 REAVIS ROAD

ST. LOUIS, MISSOURI 63123

1 2 3 4 5 6 7 8

Summary of Contents

Page 1 - WHITE-RODGERS

PART NO. 37-5089A9139Operator: Save these instructions for future use!FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLYBEFORE INSTALLING OR OPERA

Page 2 - INSTALLATION

2SPECIFICATIONSELECTRICAL DATAElectrical Rating:17 to 30v AC 50/60 Hz.0.05 to 1.5 Amps1.5 Amps Maximum Total Load (All terminals combined)Anticipa

Page 3 - REPLACEMENT INSTALLATION

3REPLACEMENT INSTALLATIONREMOVE OLD THERMOSTAT1. Shut off electricity at the main fuse box until installa-tion is complete. Verify power is off with

Page 4 - From 24vAC transformer

4All wiring diagrams are for typical systems only. Refer toequipment manufacturers' instructions for specific sys-tem wiring information.To prev

Page 5 - ATTACH THERMOSTAT TO SUBBASE

5To attach thermostat to subbase, line up the plastic snapguides at the bottom of the thermostat and the threeconnector pins on the thermostat with th

Page 6 - OPERATION

6SYSTEM CONFIGURATIONELECTRIC HEAT SYSTEMSFor central electric heat systems where the blower isenergized by a separate circuit through the fan relay(m

Page 7 - TROUBLESHOOTING

7LOCKOUT BYPASS OPTIONFOR QUALIFIED SERVICE TECHNICIANS’ USEONLY. OPERATORS SHOULD NOT USE THISFEATURE DUE TO POSSIBILITY OF EQUIPMENTOR PROPERTY DAM

Page 8 - St. Louis, MO 63123

WARRANTY INFORMATIONTHIS WARRANTY STATEMENT SUPERSEDES ALL WARRANTYSTATEMENTS DATED PRIOR TO MARCH 1, 1988.White-Rodgers Division of Emerson Electric