White Rodgers 50M56U-843 - Manual
White Rodgers 50M56U-843 – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 2 – SPECIFICATIONS; MOUNTING AND WIRING; CAUTION
- Page 3 – INSTALLATION; Figure 1
- Page 4 – WIRING DIAGRAM; MV LO; RO OUT; TYPICAL SYSTEM WIRING DIAGRAM
- Page 5 – TYPICAL SYSTEM WIRING TABLE; Maximum recommended flame probe wire length is 36 inches.
- Page 6 – OPERATION; OPTION SWITCHES; Stage operation; – On call for heat, the 5 minute 2nd stage recognition; AUTO; – On call for heat, the automatic second stage will; COOL MODE; SYSTEM LOCKOUT AND; SYSTEM LOCKOUT FEATURES; (System lockout will never override the; do one of the
- Page 7 – DIAGNOSTIC FEATURES; If; FAULT RECALL; Auto Restart
- Page 8 – TROUBLESHOOTING
PAGE 3 CONTAINS WIRING HARNESS AND
BLOWER CONNECTION INSTRUCTIONS FOR
ALL APPLICATIONS AND IMPORTANT OEM
REPLACEMENT INSTRUCTION FOR:
●
TRANE / AMERICAN STANDARD
●
RHEEM / RUUD
●
BRYANT / CARRIER / DAY & NIGHT / PAYNE
INSTALLER MUST READ
www.white-rodgers.com
www.emersonclimate.com
50M56U-843
Universal Single Stage
HSI Integrated Furnace Control Kit
INSTALLATION INSTRUCTIONS
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS
CAREFULLY BEFORE INSTALLING OR OPERATING
THIS CONTROL COULD CAUSE PERSONAL INJURY
AND/OR PROPERTY DAMAGE.
DESCRIPTION
The 50M56U-843 kit is a Universal Single Stage HSI Integrated
Furnace Control that employs a microprocessor to continually
monitor, analyze, and control the proper operation of the gas
burner, inducer, and fan.
The kit contains:
• 50M56-843 Ignition Control Module
• 21D64-2 Ignitor Kit
• Set of Interconnect Harnesses
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.
PRECAUTIONS
PART NO. 37-7042C
Replaces 37-7042B
1103
Do not short out terminals on gas valve or primary
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.
FIRE HAZARD
• Do not exceed the specified voltage.
• 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.
• 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.
EXPLOSION HAZARD
• Shut off main gas to appliance until installation
is complete.
WARNING
!
CONTENTS
Description ................................................................... 1
Precautions .................................................................. 1
Specifications .............................................................. 2
Installation ................................................................... 2
Mounting & Wiring
Operation ..................................................................... 6
Troubleshooting ........................................................... 8
50M56-843
21D64-2
"Loading the manual" means you need to wait until the file loads and becomes available for online reading. Some manuals are very large, and the time they take to appear depends on your internet speed.
Summary
2 SPECIFICATIONS MOUNTING AND WIRING All wiring should be installed by a qualified heating and air conditioning contractor or licensed electrician, according to local and national electrical codes and ordinances.The control must be secured to an area that will experience a minimum of vibration and r...
3 INSTALLER MUST READ FOR PROPER INSTALLATION • Wiring harnesses and a Universal 21D64-2 ignitor are included in this package. Refer to the enclosed “Cross Reference and Harness Application Chart” (Part Number 37-7077) for harness selection and ignitor application information. Ignitor installation i...
4 WIRING DIAGRAM TH TR MV HI MV COM MV LO GND HLO HLI PSO PSI C R G W Y Y W G R THERMOSTAT 2 STAGE GAS VALVE HIGH LIMIT (N. C.) ROLLOUT (N. C.) AUX. HIGH LIMIT (N. C.) PRESSURE SWITCH (N. O.) COMPRESSOR CONTACTOR ELECTRONIC AIR CLEANER CIRCULATOR BLOWER 50M56 24 VAC 120 VAC 24 VAC CLASS II TRANSFORM...
