White-rodgers 50A55-143 Manual do Utilizador descarregar pdf

To prevent electrical shock and/or equipment

damage, disconnect electric power to system at

main fuse or circuit breaker box until installation

is complete.

Label all wires prior to disconnection when ser-

vicing controls. Wiring errors can cause im-

proper and dangerous operation.

This control is not intended for use in locations

where it may come in contact with water. Suit-

able protection must be provided to shield the

control from exposure to water (dripping, spray-

ing, rain, etc.).

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

damage thermostat and could cause personal

injury and/or property damage.

Printed in U.S.A.

50A55-143

Integrated Furnace Control

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE

INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL

INJURY AND/OR PROPERTY DAMAGE.

DESCRIPTION

Operator: Save these instructions for future use!

INSTALLATION INSTRUCTIONS

WHITE-RODGERS DIVISION

EMERSON ELECTRIC CO.

9797 REAVIS ROAD

ST. LOUIS, MISSOURI 63123-5398

The 50A55-143 is an automatic gas interrupted ignition

control that employs a microprocessor to continually

monitor, analyze, and control the proper operation of the

gas burner, inducer, and fan.

Signals interpreted during continual surveillance of the

thermostat and flame sensing element initiate automatic

ignition of the burner, sensing of the flame, and system

shut-off during normal operation.

These controls incorporate system fault analysis for quick

gas flow shut-off, coupled with automatic ignition retry

upon sensing a fault correction.

WHITE-RODGERS

PRECAUTIONS

PART NO. 37-6095A

9919

Application of this type of control may cause

flame rollout on initial start-up and could cause

personal injury and/or property damage.

Replace only with exact model number, includ-

ing dash number. Failure to use exact replace-

ment control could cause personal injury and/or

property damage.

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 licensed 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 compo-

nents could cause the control to malfunction.

GENERAL PRECAUTION

CAUTION

WARNING

CONTENTS

Description ......................................................... 1

Precautions ........................................................ 1

Specifications ..................................................... 2

Installation.......................................................... 3

Mounting & Wiring

Operation ........................................................... 6

1 2 3 4 5 6 7 8

Resumo do Conteúdo

Página 1 - WHITE-RODGERS

To prevent electrical shock and/or equipmentdamage, disconnect electric power to system atmain fuse or circuit breaker box until installationis comple

Página 2 - SPECIFICATIONS

2SPECIFICATIONSELECTRICAL RATINGS [@ 77°F (25°C)]:Input Voltage: 25 VAC 50/60 HzMax. Input Current @ 25 VAC: 0.45 ampRelay Load Ratings:Valve Relay: 1

Página 3 - INSTALLATION

3MOUNTING AND WIRINGDo not use on circuits exceeding specifiedvoltage. Higher voltage will damage controland could cause shock or fire hazard.To preve

Página 4 - TYPICAL SYSTEM WIRING DIAGRAM

4THTRMVMVGNDFPHLOHLIPSCRTWIN*TWIN*GWYEAC NHUM NXFMR NLINE NCIR NIGNINDHUMEACXFMRLINEPARKPARKHEATCOOLIGNITORYWGRTHERMOSTATGASVALVEHIGH LIMIT(N. C.)ROLL

Página 5

550A55TERMINALTERMINALTYPESYSTEM COMPONENTCONNECTIONTYPICAL SYSTEM WIRING TABLE* maximum recommended flame probe wire length is 36 inches.WGRYTWINCMV

Página 6 - HEAT MODE

6OPERATION OPTION SWITCHESThe option switches on the 50A55-143 control are used todetermine the length of the heat delay-to-fan-off periods.The follow

Página 7 - TWINNING INTERFACE

7SYSTEM LOCKOUT ANDDIAGNOSTIC FEATURESSYSTEM LOCKOUT FEATURESWhen system lockout occurs, the gas valve is de-ener-gized, the circulator blower is ener

Página 8 - MOUNTING HOLE TEMPLATE

MOUNTING HOLE TEMPLATEFOR MOUNTING HOLE LOCATIONS4.172 ± .007(2 plcs.)6.402 ± .010(2 plcs.)Refer to page 3 of the installation instructions for proper

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White-rodgers 50A55-143 Manual do Utilizador

Consulte online ou descarregue Manual do Utilizador para Forno White-rodgers 50A55-143. White Rodgers 50A55-143 User Manual Manual do Utilizador

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