White-Rodgers 50M56U-801 Integrated HSI Furnace Control Board, Lennox, Allied Air

White-Rodgers 50M56U-801 Single Stage | Direct | HSI Integrated Furnace Control Kit DIRECT REPLACEMENTment.

The 50M56U-801 services most current Lennox / Allied Air Enterprises single stage furnaces with 2 or 3 speed PSC
motors and 120V HSI single stage furnace controls.
Kit includes wiring harnesses, control with Fault Recall and LED display, and dipswitches to set blower delays.

Replaces Lennox 81W03, 56W19, 94W83, and 74W03
service platforms – which have no other competitive replacements.
It employs a microprocessor to continually monitor, analyze, and control the proper operation of the gas burner, inducer, and fan.

Includes
• 50M56-801 Integrated Furnace Control
• 2 Harness Assemblies
• Control Label
• Wire Ties
• Installation Instruction

Relay Load Ratings
Valve Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 amp @ 25 VAC 50 / 60 Hz 0.6 pf
Ignitor Relay . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 amp @ 120 VAC 50 / 60 Hz
Inducer Relay . . . . . . . . . . . . . . . . . . . . . . . . . 2.8 amp @ 120 VAC
Circulator Relay . . . . . . . . . . . . . . . . . . . . . . . . 10.0 FLA-25.0 LRA @ 120 VAC
Humidifier Load . . . . . . . . . . . . . . . . . . . . . . . . 1.0 amp @ 24 VAC or 120 VAC
Electronic Air Cleaner . . . . . . . . . . . . . . . . . . . 1.0 amp @ 120 VAC
Flame Current Requirements
Minimum current to insure flame detection . . . 0.25 uA DC*
Maximum current for non-detection . . . . . . . . . 0.10 uA DC*
Maximum allowable leakage resistance . . . . . 100 M ohms
Timing Spec (@ 60 Hz) maximum
Flame establishing time . . . . . . . . . . . . . . . . . . 0.8 sec
Flame failure response time . . . . . . . . . . . . . . 2.0 seconds