Operator: Save these instructions for future use!
Operator: Save these instructions for future use!
Operator: Save these instructions for future use!
Operator: Save these instructions for future use!
Operator: Save these instructions for future use!
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE
INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL
INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL
INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL
INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL
INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL
INJURY AND/OR PROPERTY DAMAGE.
INJURY AND/OR PROPERTY DAMAGE.
INJURY AND/OR PROPERTY DAMAGE.
INJURY AND/OR PROPERTY DAMAGE.
INJURY AND/OR PROPERTY DAMAGE.
The 50E47-843 is a universal replacement Hot Surface
Ignition (HSI) control designed for maximum compatibility
with existing systems. It features:
• A card port and six program keys to select the
A card port and six program keys to select the
A card port and six program keys to select the
A card port and six program keys to select the
A card port and six program keys to select the
Trial for Ignition Time, Retries, Prepurge and
Trial for Ignition Time, Retries, Prepurge and
Trial for Ignition Time, Retries, Prepurge and
Trial for Ignition Time, Retries, Prepurge and
Trial for Ignition Time, Retries, Prepurge and
Igniter Warm Up timings
Igniter Warm Up timings
Igniter Warm Up timings.
Igniter Warm Up timings
Igniter Warm Up timings
• A Jumper to accommodate systems using Direct
Sense (sensing through ignitor) or Indirect Sense
(using a Flame Sensor).
• LED indicator for quick system and module diagnos-
tics and troubleshooting.
GENERAL PRECAUTION
!
Application of this type of control may cause
Application of this type of control may cause
Application of this type of control may cause
Application of this type of control may cause
Application of this type of control may cause
flame rollout on initial startup and could cause
flame rollout on initial startup and could cause
flame rollout on initial startup and could cause
flame rollout on initial startup and could cause
flame rollout on initial startup and could cause
personal injury and/or property damage.
personal injury and/or property damage.
personal injury and/or property damage.
personal injury and/or property damage.
personal injury and/or property damage.
Check product specification and cross refer-
Check product specification and cross refer-
Check product specification and cross refer-
Check product specification and cross refer-
Check product specification and cross refer-
ence before replacing existing module. Do not
ence before replacing existing module. Do not
ence before replacing existing module. Do not
ence before replacing existing module. Do not
ence before replacing existing module. Do not
use if existing module is not listed. Use of an
use if existing module is not listed. Use of an
use if existing module is not listed. Use of an
use if existing module is not listed. Use of an
use if existing module is not listed. Use of an
program key other than listed can result in appli-
program key other than listed can result in appli-
program key other than listed can result in appli-
program key other than listed can result in appli-
program key other than listed can result in appli-
ance malfunction.
ance malfunction.
ance malfunction.
ance malfunction.
ance malfunction.
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 compo-
nents could cause the control to malfunction.
CONTENTS
CONTENTS
CONTENTS
CONTENTS
CONTENTS
Description ................................................................. 1
Precautions ................................................................ 1
Specifications ............................................................. 2
Installation .................................................................. 2
Mounting & Wiring
Operation & Troubleshooting ...................................... 6
Universal Hot Surface Ignition Control
INSTALLATION INSTRUCTIONS
INSTALLATION INSTRUCTIONS
INSTALLATION INSTRUCTIONS
INSTALLATION INSTRUCTIONS
INSTALLATION INSTRUCTIONS
To prevent electrical shock and/or equipment
To prevent electrical shock and/or equipment
To prevent electrical shock and/or equipment
To prevent electrical shock and/or equipment
To prevent electrical shock and/or equipment
damage, disconnect electric power to system at
damage, disconnect electric power to system at
damage, disconnect electric power to system at
damage, disconnect electric power to system at
damage, disconnect electric power to system at
main fuse or circuit breaker box until installation
main fuse or circuit breaker box until installation
main fuse or circuit breaker box until installation
main fuse or circuit breaker box until installation
main fuse or circuit breaker box until installation
is complete.
is complete.
is complete.
is complete.
is complete.
Label all wires prior to disconnection when
Label all wires prior to disconnection when
Label all wires prior to disconnection when
Label all wires prior to disconnection when
Label all wires prior to disconnection when
servicing controls. Wiring errors can cause im-
servicing controls. Wiring errors can cause im-
servicing controls. Wiring errors can cause im-
servicing controls. Wiring errors can cause im-
servicing controls. Wiring errors can cause im-
proper and dangerous operation.
proper and dangerous operation.
proper and dangerous operation.
proper and dangerous operation.
proper and dangerous operation.
This control is not intended for use in locations
This control is not intended for use in locations
This control is not intended for use in locations
This control is not intended for use in locations
This control is not intended for use in locations
where it may come in contact with water. Suit-
where it may come in contact with water. Suit-
where it may come in contact with water. Suit-
where it may come in contact with water. Suit-
where it may come in contact with water. Suit-
able protection must be provided to shield the
able protection must be provided to shield the
able protection must be provided to shield the
able protection must be provided to shield the
able protection must be provided to shield the
control from exposure to water (dripping, spray-
control from exposure to water (dripping, spray-
control from exposure to water (dripping, spray-
control from exposure to water (dripping, spray-
control from exposure to water (dripping, spray-
ing, rain, etc.).
ing, rain, etc.).
ing, rain, etc.).
ing, rain, etc.).
ing, rain, etc.).
Do not use on circuits exceeding specified volt-
Do not use on circuits exceeding specified volt-
Do not use on circuits exceeding specified volt-
Do not use on circuits exceeding specified volt-
Do not use on circuits exceeding specified volt-
age.
age.
age.
age.
age.
Higher voltage will damage control and
Higher voltage will damage control and
Higher voltage will damage control and
Higher voltage will damage control and
Higher voltage will damage control and
could cause shock or fire hazard.
could cause shock or fire hazard.
could cause shock or fire hazard.
could cause shock or fire hazard.
could cause shock or fire hazard.
Do not short out terminals on gas valve or
Do not short out terminals on gas valve or
Do not short out terminals on gas valve or
Do not short out terminals on gas valve or
Do not short out terminals on gas valve or
primary control to test. Short or incorrect wiring
primary control to test. Short or incorrect wiring
primary control to test. Short or incorrect wiring
primary control to test. Short or incorrect wiring
primary control to test. Short or incorrect wiring
will damage thermostat and could cause per-
will damage thermostat and could cause per-
will damage thermostat and could cause per-
will damage thermostat and could cause per-
will damage thermostat and could cause per-
sonal injury and/or property damage.
sonal injury and/or property damage.
sonal injury and/or property damage.
sonal injury and/or property damage.
sonal injury and/or property damage.
White-Rodgers is a division
of Emerson Electric Co.
www.white-rodgers.com
50E47-843
50E47-843
50E47-843
50E47-843
50E47-843
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
PRECAUTIONS
PRECAUTIONS
PRECAUTIONS
PRECAUTIONS
PRECAUTIONS
CAUTION
!
WARNING
!
PART NO. 37-6426D
PART NO. 37-6426D
PART NO. 37-6426D
PART NO. 37-6426D
PART NO. 37-6426D
Replaces 37-6426C
0736