White Rodgers 50M56U-751 Replacement Kit for Carrier Single Stage Integrated Furnace Control System Diagnostic LED with Fault Recall Installation Instruction
The 50M56U-751 kit is a Single Stage HSI Integrated Furnace
Control kit for Carrier. This kit replaces the following Carrier
controls:
Control kit for Carrier. This kit replaces the following Carrier
controls:
Carrier
White-Rodgers
HK42FZ004
HK42FZ009
HK42FZ016
50M56-751
HK42FZ007
HK42FZ011
HK42FZ034
HK42FZ008
HK42FZ013
325878-751*
*Universal replacement for all Carrier controls.
The control employs a microprocessor to continually monitor,
analyze, and control the proper operation of the gas burner,
inducer, and fan.
Twinning: The control board in this Kit CANNOT be twinned
with any of the Carrier circuit boards.
analyze, and control the proper operation of the gas burner,
inducer, and fan.
Twinning: The control board in this Kit CANNOT be twinned
with any of the Carrier circuit boards.
50M56U-751
Carrier Single Stage
HSI Integrated Furnace Control Kit
INSTALLATION INSTRUCTIONS
DESCRIPTION
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.
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.
PRECAUTIONS
Do not short out terminals on gas valve or primary
control. Short or incorrect wiring may damage the
thermostat.
control. Short or incorrect wiring may damage the
thermostat.
CAUTION
!
Failure to comply with the following warnings could result
in personal injury or property damage.
in personal injury or property damage.
FIRE HAZARD
• Do not exceed the specified voltage.
• Replace existing control with exact model and
• 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.
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
• 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
!
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE
INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL
INJURY AND/OR PROPERTY DAMAGE.
INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL
INJURY AND/OR PROPERTY DAMAGE.
PART NO. 37-7513B
Replaces 37-7513A
1421
www.white-rodgers.com
www.emersonclimate.com
50M56-751
The kit contains:
1 – 50M56-751 ignition control board
1 – Set of interconnect harnesses
1 – Manual
1 – Bag of accessories
1 – 50M56-751 ignition control board
1 – Set of interconnect harnesses
1 – Manual
1 – Bag of accessories