White Rodgers 50A56-956 Manuel d'installation télécharger pdf

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www.emersonclimate.com

50A56-956

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

INSTALLATION INSTRUCTIONS

The 50A56-956 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.

Kit includes: 1) Ignition Control 2) Metal Control Box

3) Install Sheet

PRECAUTIONS

Installation should be done by a qualiﬁed heating and air

conditioning contractor or licensed electrician.

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 components could cause

the control to malfunction.

Following installation or replacement, follow manufacturer’s

recommended installation/service instructions to ensure proper

operation.

CONTENTS

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

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

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

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

Mounting & Wiring

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

Troubleshooting ................................................... 8

50A56-956 Cross Reference Information

Yo r k White-Rodgers

S1-33102956000 S1-03101266000 50A56-242

S1-03109167000 S1-03101284000 50A56-243

S1-03101933000 S1-03101973000

S1-03101267000 S1-03101972000

S1-03101267001 265901

S1-03100662000 265902

S1-03101250000 539617

S1-33103010000

PART NO. 37-7475B

Replaces 37-7475A

1419

Failure to comply with the following warnings could result

in personal injury or property damage.

FIRE HAZARD

• Donotexceedthespeciedvoltage.

• Replaceexistingcontrolwithexactmodeland

dashnumber.

• Protectthecontrolfromdirectcontactwithwater

(dripping,spraying,rain,etc.).

• Ifthecontrolhasbeenindirectcontactwith

water,replacethecontrol.

• Labelallwiresbeforedisconnectionwhen

servicingcontrols.Wiringerrorscancause

improperanddangerousoperation.

• Routeandsecurewiringawayfromame.

SHOCK HAZARD

• Disconnectelectricpowerbeforeservicing.

• Ensureproperearthgroundingofappliance.

• Ensureproperconnectionoflineneutralandline

hotwires.

EXPLOSION HAZARD

• Shutoffmaingastoapplianceuntilinstallation

iscomplete.

WARNING

CAUTION

Do not short out terminals on gas valve or primary

control. Short or incorrect wiring may damage the

thermostat.

1 2 3 4 5 6 ... 11 12

Résumé du contenu

Page 1 - 50A56-956

www.white-rodgers.comwww.emersonclimate.com50A56-956Integrated Furnace ControlFAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING

Page 2 - SPECIFICATIONS

10NOTES

Page 3 - INSTALLATION

11Figure1:HoleTemplateNote: Conﬁrm actual size of template before using.4.825"7.0" 7.0"4.825"

Page 4 - TYPICAL SYSTEM WIRING DIAGRAM

White-Rodgers is a business of Emerson Electric Co.The Emerson logo is a trademark and service mark of Emerson Electric Co.www.white-rodgers.comwww.e

Page 5

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

Page 6 - OPERATION

3 INSTALLATIONMOUNTING AND WIRINGCertain upﬂow 90% models may require the installation of the provided metal control mounting box. The reuse of the

Page 7 - OPERATION

4THTRMV COMMVGNDFPHLOHLIPSCRGWY/Y2EAC NHUM NXFMR NLINE NCIR NIGNIGN-NINDIND-NHUMEACXFMRLINEPARKHEATHI COOLLO COOLIGNITORWGRTHERMOSTATGASVALVEHIGH LIMI

Page 8 - TROUBLESHOOTING

550A56TERMINALTERMINALTYPESYSTEM COMPONENTCONNECTIONTYPICAL SYSTEM WIRING TABLEWGRY/Y2Y1 CIND (Pin 1)IGN (Pin 2)IND-N (Pin 3)IGN-N (Pin 4)LO COOLHI CO

Page 9

6OPERATION OPTION SWITCHESThe shunt jumper (E34) on the 50A56 control are used to determine the length of the heat delay-to-fan-off periods. The follo

Page 10

7 OPERATIONTo reset the control after system lockout, do one of the following:1. Interrupt the call for heat or cool at the thermostat for at

Page 11 - Figure1:HoleTemplate

8GreenLEDFlashAmberLEDFlashRedLED FlashError/Condition Comments/TroubleshootingSlow Normal operation No fault1 Flame sensed when no ﬂame should be

Page 12 - The Emerson logo is a

9NOTES