White-rodgers 1F91-71 Manual de usuario descargar pdf

Printed in U.S.A.

PART NO. 37-4740B

Replaces 37-4740A

9307

1F91-71

Multi-stage Electronic Digital Thermostat

PRECAUTIONS

Operator: Save these instructions for future use!

WHITE-RODGERS DIVISION

EMERSON ELECTRIC CO.

9797 REAVIS ROAD

ST. LOUIS, MISSOURI 63123-5398

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. 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 settings for a five-day

(weekday) program and a two-day (weekend) program.

The thermostat will store both heating and cooling pro-

grams 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 restoration, the

thermostat will automatically maintain a factory

preprogrammed heating temperature of 64°F or a cooling

temperature of 82°F.

INSTALLATION INSTRUCTIONS

WHITE-RODGERS

W H I T E - R O D G E R S

DIGITAL COMFORT SET

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 installa-

tion 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 per-

sonal injury and/or property damage.

WARNING

CAUTION

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

Set Option Switches

Check Thermostat Operation

Fan Operation

Heating System

Cooling System

Troubleshooting

1 2 3 4 5 6 7 8

Indice de contenidos

Pagina 1 - WHITE-RODGERS

Printed in U.S.A.PART NO. 37-4740BReplaces 37-4740A93071F91-71 Multi-stage Electronic Digital ThermostatPRECAUTIONSOperator: Save these instructions

Pagina 2 - NEW INSTALLATION

2SPECIFICATIONSINSTALLATIONTHIS CONTROL IS DESIGNED FOR USE WHERE BOTH SIDES OF THE TRANSFORMER ARE PRESENTTO THE THERMOSTAT (both the hot and common

Pagina 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

Pagina 4 - Figure 3. Subbase

42. Connect wires beneath terminal screws on subbaseusing wiring schematic (see figs. 3 through 6).3. Place subbase over hole in wall and mark mounti

Pagina 5 - THERMOSTAT

5IF SAFETY CIRCUITS ARE IN ONLY ONE OF THESYSTEMS, REMOVE THE TRANSFORMER OF THESYSTEM WITH NO SAFETY CIRCUITS.NOTEHeatRelayStage 2CompressorContactor

Pagina 6 - OPERATION

6ATTACH THERMOSTAT TO SUBBASEIT IS RECOMMENDED THAT YOU SET OPTIONSWITCHES TO DESIRED POSITION BEFORE ATTACH-ING ON SUBBASE (see OPERATION). IT IS A

Pagina 7 - LOCKOUT BYPASS OPTION

7CHECK THERMOSTAT OPERATIONFAN OPERATION1. Turn on power to the system. If the heat source hasa standing pilot, be sure to light it.2. Press FANSWITC

Pagina 8 - WARRANTY INFORMATION

If you need further information about this product, please write toWhite-Rodgers Division, Emerson Electric Co.9797 Reavis RoadSt. Louis, MO 63123-53

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