White Rodgers 50D50-843 Universal Proven Pilot Spark Control for All Gases Installation Instructions

White Rodgers Heaters Installation Instructions - 50D50-843 Universal Proven Pilot Spark Control for All Gases.
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50D50-843

Universal Proven Pilot Spark Control

INSTALLATION INSTRUCTIONS

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE 
INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL 
INJURY AND/OR PROPERTY DAMAGE.

CONTENTS

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

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

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

Installation  ..................................................................  2

Mounting & Wiring .......................................................  2

Operation & Troubleshooting  ......................................  3

 

 DESCRIPTION

 

 PRECAUTIONS

Application of this type of control may cause 
flame rollout on initial startup and could cause 
personal injury and/or property damage.
Check product specification and cross reference 
before replacing existing module. Do not use if 
existing module is not listed. Use of a program 
key other than listed can result in appliance 
malfunction.

GENERAL PRECAUTION

!

The 50D50-843 is a universal replacement Spark control 
designed for maximum compatibility with existing systems. 
It features:

A card port and ten program keys to select the 
Safety Time, Retries, Pre-purge and Recycle 
timings
.

A Jumper to accommodate systems using Direct 
Sense (sensing through ignitor) or Indirect Sense 
(using a Flame Sensor)

LEDindicatorforquicksystemandmodulediagnostics
and troubleshooting.

If in doubt about whether your wiring is millivolt, line, or 
lowvoltage,haveitinspectedbyaqualifiedheatingand
air conditioning contractor or licensed electrician.
Do not exceed the specification ratings.
Allwiringmustconformtolocalandnationalelectrical
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.

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 
servicing controls. Wiring errors can cause 
improper and dangerous operation.
This control is not intended for use in locations 
where it may come in contact with water. Suitable 
protection must be provided to shield the control 
from exposure to water (dripping, spraying, 
rain, etc.).

CAUTION

!

Do not use on circuits exceeding specified voltage. 
Higher voltage will damage 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 
damage thermostat and could cause personal 
injury and/or property damage.

WARNING

!

www.white-rodgers.com

www.emersonclimate.com

PART NO. 37-6576H

Replaces 37-6576G

1423

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