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Lennox International Inc
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Lennox International Inc
GWB8-245E-2 Integrated High Limit Electronic Ignition Control
Models:
GWB8-299E-2
GWB8-245E-2
GWB8-280E-2
Gas-Fired Hot Water Boiler
GWB8-262E-2
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Troubleshooting
Install
Wiring Diagrams
Vent Damper Placement
Dimension
Connecting Supply And Return Piping
Lighting Procedure For Boiler With Intermittent Pilot System
Error
Adjust Pilot Burner
Cleaning Your Boiler And Burners
Page 17
Image 17
11 - WIRING DIAGRAMS
Figure 13 - Integrated High Limit Electronic Ignition Control (240008781)
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Page 16
Page 18
Page 17
Image 17
Page 16
Page 18
Contents
PRODUCT LITERATURE
before installing
GAS-FIRED HOT WATER BOILERS
INSTALLATION INSTRUCTIONS
DIMENSIONS
1 - DIMENSIONS Figure 1 - Dimensions Table 1 - Dimensions
INCH
BOILER MODEL NUMBER
BOILERS FOR USE AT HIGH ALTITUDE
2 - BOILER RATINGS AND CAPACITIES Table 2 - Ratings and Capacities
DANGER
3 - TABLE OF CONTENTS
Used to address practices not related to personal injury
DO NOT obstruct air openings to the boiler room
Table 3 - MINIMUM CLEARANCE DIMENSIONS
4 - INSTALLATION PROCEDURE
Minimum Clearances to Combustible
BOILER
Room Cubic Feet Volume
Table 4 - Minimum Room Volume, Indoor Air Only
5 - VENTILATION & COMBUSTION AIR
Input Mbh
Figure 2 - Safety Relief Valve
6 - CONNECTING SUPPLY AND RETURN PIPING
Discharge line shall
allow complete drainage of the valve and the discharge line
FOR USE WITH COOLING UNITS
Figure 3 - Temperature Pressure Gauge
6 - CONNECTING SUPPLY AND RETURN PIPING
Figure 4 - Typical Hot Water Piping Figure 5 - Chilled Water Piping
Figure 6 - BYPASS PIPING - CIRCULATOR ON SUPPLY
Bypass Piping Required For High Mass Large Water Content Systems
Figure 7 - BYPASS PIPING - CIRCULATOR ON RETURN
6 - CONNECTING SUPPLY AND RETURN PIPING
7 - CHIMNEY AND VENT PIPE CONNECTION
Connecting The Vent Damper And Vent Connector
Check Your Chimney
Chimney Sizing
7 - CHIMNEY AND VENT PIPE CONNECTION
Minimum Vent Pipe Clearance
Removing Existing Boiler From Common Venting System
Figure 9 - Vent Damper Placement
Figure 8 - Vent Damper Installation
Figure 10 - Vent Damper Position Indicator
Vent Damper Manual Operation
9 - GAS SUPPLY PIPING
WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliance
If you cannot reach your gas supplier, call the fire department
VENT DAMPER WIRING
10 - ELECTRICAL WIRING
ELECTRIC POWER SUPPLY
THERMOSTAT INSTALLATION
Inducer is not an option
11 - WIRING DIAGRAMS
Figure 12 - Integrated High Limit Electronic Ignition Control
11 - WIRING DIAGRAMS
Figure 13 - Integrated High Limit Electronic Ignition Control
11 - WIRING DIAGRAMS
Figure 14 - Integrated High Limit Electronic Ignition Control
FILLING SYSTEM WITH WATER
12 -GENERAL INSTRUCTIONS
Never run water in a hot empty boiler
LIGHTING PROCEDURE FOR BOILER WITH INTERMITTENT PILOT SYSTEM
service technician to inspect appliance and to
For Your Safety, Read Before Operating
13 - LIGHTING INSTRUCTIONS
GAS VALVE SAFETY SHUTDOWN TEST
SAFETY PILOT
ADJUST PILOT BURNER
ADJUST LIMIT CONTROLS
14 - OPERATING YOUR BOILER
CHECK THERMOSTAT OPERATION
CLEANING YOUR BOILER AND BURNERS
SAFETY RELIEF VALVE
15 - MAINTAINING YOUR BOILER
BURNERS
No electric power to boiler
16 - SERVICE HINTS
Controls out of adjustment
Reset according to instructions
WATER TEMPERATURE CONTROL
17 - EQUIPMENT AND OPTIONAL ACCESSORIES
DIAPHRAGM TYPE EXPANSION TANK
AIR ELIMINATING FITTING AIR PURGER
BLOCKED VENT SAFETY SWITCH BLOCKED VENT SAFETY SHUTOFF
ROLLOUT SWITCH FLAME ROLLOUT SAFETY SHUTOFF
17 - EQUIPMENT AND OPTIONAL ACCESSORIES
A.3 Adjusting Settings
A.1 Installation Environment Considerations
APPENDIX A - CONTROL MODULE
Do not use corrosive chemicals around or on module or gas control
Table 6 - Operation State Codes
A.5 Operation
APPENDIX A - CONTROL MODULE
State
A.7 Troubleshooting
A.6 Boiler High Limit Temperature Controller
A.8 Troubleshooting Error Codes
Figure 20 - Basic Control Algorithm Example
Error
APPENDIX A - CONTROL MODULE Table 7 - Troubleshooting Error Codes
Definition
A.9 Intermittent Pilot
APPENDIX A - CONTROL MODULE
Figure 19 - Troubleshooting Pilot Flame
Correct Pilot Flame 3/8 to 1/2 inch in flame. See Figure 16, Page
Lennox Industries Inc. Dallas, Texas
PRODUCT LITERATURE
ECR International, Inc
Manufactured by
