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 Standoffs50M56X-843Universal Integrated Single Stage120V Hot Surface Ignition Control KitINSTALLATION INSTRUCTIONSDESCRIPTION50M56X-843 is an aftermarket universal replacement controlkit for single stage furnace applications with PSC or ECMx(constant torque) blower motors. A HotRodTM 120V ignitoris included to replace ignitors in most furnaces as well asupgrade 80V systems to 120V.With 50M56X-843 no complex adapter harnesses arerequired, instead all connectors and terminals used in themajor OEM brands are included on the control itself. Thisallows for OEM wiring to be connected directly to the controlfor a faster and easier installation.ELECTRICAL SPECIFICATIONSFailure to comply with the following warnings could resultin personal injury or pro perty damage.• Installation should be done by a qualified heating andair conditioning contractor or licensed electrician.• All wiring must conform to local and national electricalcodes and ordinances.• Following installation or replacement, followmanufacturer’s recommended installation/serviceinstructions 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 servicingmodules. Wiring errors can cause improper anddangerous 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 hotwires.• Ensure module has ¼” clearance between all sides ofmodule and grounded metal.EXPLOSION HAZARD• Shut off main gas to appliance until installation iscomplete.WARNING!FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFOREINSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONALINJURY AND/OR PROPERTY DAMAGE.emerson.com/white-rodgersPART NO. 37-78270012233View InstallationResourcesOPERATING 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 MixturesSpecification Value UnitInput Voltage 18-30 VACInput Current Max 800 mALine Frequency 60 HzInducer Relay at 120V 2.8A FLAGas Valve Relay @ 30V 1.5 AmperesIgnitor Relay @ 120V 1.2 AmperesPSC Circulator Relay 10 FLAINSTALLER MUST READAPPLICATION AND OPERATION NOTES ONPAGES 5, 6, & 7CONTENTSDescription...................................................................... 1Precautions ..................................................................... 1Configuration .................................................................. 2Installation ...................................................................... 3Application & Operation Notes........................................ 5Wiring Diagram ............................................................... 7Troubleshooting..............................................................11