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FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE
INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL
INJURY AND/OR PROPERTY DAMAGE.
The 50M58-289 is a replacement control for two-stage automatic
gas ignition controls employing a microprocessor to continually
monitor, analyze, and control the proper operation of the gas
burner and inducer. The 50M58-289 controls a multiple tapped
induction circulation blower.
Signals interpreted during continual surveillance of the two-
stage thermostat and flame sensing element initiate automatic
Installation should be done 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.
CAUTION
!
Do not short out terminals on gas valve or primary
control. Short or incorrect wiring may damage the
thermostat.
CONTENTS
Description ............................................................. 1
Precautions ............................................................ 1
Specifications ......................................................... 2
Installation .............................................................. 3
Operation ................................................................ 6
System Lockout and Diagnostic Features .............. 7
Troubleshooting ...................................................... 8
2-Stage, X-13 Style Hot Surface Ignition Control
INSTALLATION INSTRUCTIONS
ignition of the burner, sensing of the flame, and system shutoff
during normal operation.
The control incorporates system fault analysis for quick gas
flow shutoff, coupled with automatic ignition retry upon sensing
a fault correction.
Failure to comply with the following warnings could
result in personal injury or property damage.
FIRE HAZARD
• Do not exceed the specified voltage.
• 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 wired before disconnection when servicing
controls. Wiring error 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.
www.white-rodgers.com
www.emersonclimate.com
50M58-289
DESCRIPTION
PRECAUTIONS
WARNING
!
PART NO. 37-7547B
Replaces 37-7547A
1445
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Summary of Contents for White Rodgers 50M58-289
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Page 1: Table Of Contents
INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE. DESCRIPTION The 50M58-289 is a replacement control for two-stage automatic ignition of the burner, sensing of the flame, and system shutoff gas ignition controls employing a microprocessor to continually during normal operation. -
Page 2: Specifications
Electronic Air Cleaner Load: 1.0 A max @ 120 VAC troleum, and LP Gas Air Mixtures are all approved for use. Circulator Output : 12 mA RMS @ 30 VAC 50M58-289 TIMING TABLE (All times are in seconds, unless noted otherwise) Event... -
Page 3: Installation
INSTALLATION MOUNTING AND WIRING After installation or replacement, follow appliance manufacturer's recommended installation or service instructions to insure Refer to Typical System Wiring Diagram on page 4 and proper operation. Typical System Wiring Table on page 5 The 50M58 has only one serviceable part – an automotive type All wiring should be installed according to local and national fuse, which protects the low voltage transformer from damage electrical codes and ordinances. - Page 4 WIRING 50M58-289 TYPICAL WIRING DIAGRAM NEUTRAL (LINE) (LINE) 120 VAC 24 VAC CLASS II TRANSFORMER 24 VAC 50M58-289 CIRCU- LATOR LINE BLOWER XFMR IND HI INDUCER IGNITOR IND LO IND N HUMIDIFIER IGN N (OPTIONAL) CIRC N LINE N XFMR N...
- Page 5 WIRING 50M58-289 TYPICAL WIRING TABLE 50M58-289 TERMINAL SYSTEM COMPONENT TERMINAL TYPE CONNECTION two-stage thermostat W1 terminal (or equivalent) two-stage thermostat W2 terminal (or equivalent) two-stage thermostat G terminal (or equivalent) 7 -screw two-stage thermostat R terminal (or equivalent) terminal block...
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Page 6: Operation
(high fire). Option switches on the 50M58-289 control are used to determine For a single-stage thermostat, when a call for heat occurs the length of the delay-to-fan-off periods. The following tables... -
Page 7: System Lockout And Diagnostic Features
OPERATION COOL MODE MANUAL FAN ON MODE In a typical system, a call for cool is initiated by closing the ther- If the thermostat fan switch is moved to the ON position, the mostat contacts Y or YLO and G. The circulator motor speed is circulator fan (low heat speed) and the electronic air cleaner selected by Dip Switch S2 (refer to option switch S2 positions (optional) are energized. -
Page 8: Troubleshooting
TROUBLESHOOTING DIAGNOSTIC TABLE Green Amber Red LED Error/Condition Comments/Troubleshooting Flash Flash Flash Flame sensed when no flame should Verify the gas valve is operating and shutting down properly. Flame in be present burner assemble should extinguish promptly at the end of the cycle. Check orifices and gas pressure.
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