Included in the box:
• 1 – 50M56X-843 Ignition Control
• 1 – HotRod
TM
Ignitor
• 1 – Installation Instructions
• 4 – 1/2” Sheet Metal Mounting Screws
• 6 – 3/16” QC crimp on terminals
• 6 – 1/4” Female Spade Terminals
• 4 – Mounting Standoffs
50M56X-843
Universal Integrated Single Stage
120V Hot Surface Ignition Control Kit
INSTALLATION INSTRUCTIONS
DESCRIPTION
50M56X-843 is an aftermarket universal replacement control
kit for single stage furnace applications with PSC or ECMx
(constant torque) blower motors. A HotRod
TM
120V ignitor
is included to replace ignitors in most furnaces as well as
upgrade 80V systems to 120V.
With 50M56X-843 no complex adapter harnesses are
required, instead all connectors and terminals used in the
major OEM brands are included on the control itself. This
allows for OEM wiring to be connected directly to the control
for a faster and easier installation.
ELECTRICAL SPECIFICATIONS
Failure to comply with the following warnings could result
in personal injury or pro perty damage.
• Installation should be done by a qualified heating and
air conditioning contractor or licensed electrician.
• All wiring must conform to local and national electrical
codes and ordinances.
• Following installation or replacement, follow
manufacturer’s recommended installation/service
instructions to ensure proper operation.
FIRE HAZARD
• Do not exceed the specified voltage.
• Protect module from direct contact with water (dripping,
spraying, rain, etc.).
• If the module has been in direct contact with water,
replace the module.
• Label all wires before disconnection when servicing
modules. Wiring errors can cause improper and
dangerous operation.
• Route and secure wiring away from flame.
SHOCK HAZARD
• Disconnect electric power before servicing.
• Ensure proper earth grounding of appliance.
• Ensure proper connection of line neutral and line hot
wires.
• Ensure module has ¼” clearance between all sides of
module and grounded metal.
EXPLOSION HAZARD
• Shut off main gas to appliance until installation is
complete.
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE
INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL
INJURY AND/OR PROPERTY DAMAGE.
emerson.com/white-rodgers
PART NO. 37-7827001
2233
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Resources
OPERATING TEMPERATURE RANGE:
-40° to 176°F (-40° to 80°C)
HUMIDITY RANGE:
5 to 95% relative humidity (non-condensing)
GASES APPROVED:
Natural, Manufactured, Mixed, Liquid Petroleum,
and LP Gas Air Mixtures
Specification Value Unit
Input Voltage 18-30 VAC
Input Current Max 800 mA
Line Frequency 60 Hz
Inducer Relay at 120V 2.8A FLA
Gas Valve Relay @ 30V 1.5 Amperes
Ignitor Relay @ 120V 1.2 Amperes
PSC Circulator Relay 10 FLA
INSTALLER MUST READ
APPLICATION AND OPERATION NOTES ON
PAGES 5, 6, & 7
CONTENTS
Description ...................................................................... 1
Precautions ..................................................................... 1
Configuration .................................................................. 2
Installation ...................................................................... 3
Application & Operation Notes........................................ 5
Wiring Diagram ............................................................... 7
Troubleshooting.......................................................... ....11
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