White Rodgers 50A56-956 Replacement Kit for York Single Stage Integrated Furnace Control Selectable Continuous Fan Speed Manuel De Montage
www.white-rodgers.com
www.emersonclimate.com
50A56-956
Integrated Furnace Control
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.
DESCRIPTION
INSTALLATION INSTRUCTIONS
The 50A56-956 is an automatic gas interrupted ignition control
that employs a microprocessor to continually monitor, analyze,
and control the proper operation of the gas burner, inducer,
and fan.
Signals interpreted during continual surveillance of the thermostat
and flame sensing element initiate automatic ignition of the
burner, sensing of the flame, and system shut-off during normal
operation.
These controls incorporate system fault analysis for quick gas
flow shut-off, coupled with automatic ignition retry upon sensing
a fault correction.
Kit includes: 1) Ignition Control
that employs a microprocessor to continually monitor, analyze,
and control the proper operation of the gas burner, inducer,
and fan.
Signals interpreted during continual surveillance of the thermostat
and flame sensing element initiate automatic ignition of the
burner, sensing of the flame, and system shut-off during normal
operation.
These controls incorporate system fault analysis for quick gas
flow shut-off, coupled with automatic ignition retry upon sensing
a fault correction.
Kit includes: 1) Ignition Control
2) Metal Control Box
3) Install Sheet
PRECAUTIONS
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.
CONTENTS
Description ........................................................ 1
Precautions ....................................................... 1
Specifications .................................................... 2
Installation ......................................................... 3
Precautions ....................................................... 1
Specifications .................................................... 2
Installation ......................................................... 3
Mounting & Wiring
Operation ........................................................... 6
Troubleshooting ................................................... 8
Troubleshooting ................................................... 8
50A56-956 Cross Reference Information
York
White-Rodgers
S1-33102956000
S1-03101266000
50A56-242
S1-03109167000
S1-03101284000
50A56-243
S1-03101933000
S1-03101973000
S1-03101267000
S1-03101972000
S1-03101267001
265901
S1-03100662000
265902
S1-03101250000
539617
S1-33103010000
PART NO. 37-7475B
Replaces 37-7475A
1419
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
!
CAUTION
!
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.