Manuals / Lennox International Inc / Household Appliance / Boiler

Lennox International Inc Gas-Fired Hot Water Boiler Connecting Supply And Return Piping

Models: GWB8-299E-2 GWB8-245E-2 GWB8-280E-2 Gas-Fired Hot Water Boiler GWB8-262E-2

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6 - CONNECTING SUPPLY AND RETURN PIPING

Figure 4 - Typical Hot Water Piping

Figure 5 - Chilled Water Piping

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Lennox International Inc Gas-Fired Hot Water Boiler, GWB8-262E-2 Typical Hot Water Piping - Chilled Water Piping

Contents

PRODUCT LITERATURE before installingGAS-FIRED HOT WATER BOILERS INSTALLATION INSTRUCTIONSDIMENSIONS 1 - DIMENSIONS Figure 1 - Dimensions Table 1 - DimensionsINCH BOILER MODEL NUMBERBOILERS FOR USE AT HIGH ALTITUDE 2 - BOILER RATINGS AND CAPACITIES Table 2 - Ratings and CapacitiesDANGER 3 - TABLE OF CONTENTSUsed to address practices not related to personal injury DO NOT obstruct air openings to the boiler roomTable 3 - MINIMUM CLEARANCE DIMENSIONS 4 - INSTALLATION PROCEDUREMinimum Clearances to Combustible BOILERRoom Cubic Feet Volume Table 4 - Minimum Room Volume, Indoor Air Only5 - VENTILATION & COMBUSTION AIR Input MbhFigure 2 - Safety Relief Valve 6 - CONNECTING SUPPLY AND RETURN PIPINGDischarge line shall allow complete drainage of the valve and the discharge lineFOR USE WITH COOLING UNITS Figure 3 - Temperature Pressure Gauge6 - CONNECTING SUPPLY AND RETURN PIPING Figure 4 - Typical Hot Water Piping Figure 5 - Chilled Water PipingFigure 6 - BYPASS PIPING - CIRCULATOR ON SUPPLY Bypass Piping Required For High Mass Large Water Content SystemsFigure 7 - BYPASS PIPING - CIRCULATOR ON RETURN 6 - CONNECTING SUPPLY AND RETURN PIPING7 - CHIMNEY AND VENT PIPE CONNECTION Connecting The Vent Damper And Vent ConnectorCheck Your Chimney Chimney SizingMinimum Vent Pipe Clearance Removing Existing Boiler From Common Venting System7 - CHIMNEY AND VENT PIPE CONNECTION Figure 9 - Vent Damper Placement Figure 8 - Vent Damper InstallationFigure 10 - Vent Damper Position Indicator Vent Damper Manual Operation9 - GAS SUPPLY PIPING WHAT TO DO IF YOU SMELL GASDo not try to light any appliance If you cannot reach your gas supplier, call the ﬁre departmentVENT DAMPER WIRING 10 - ELECTRICAL WIRINGELECTRIC POWER SUPPLY THERMOSTAT INSTALLATION11 - WIRING DIAGRAMS Figure 12 - Integrated High Limit Electronic Ignition ControlInducer is not an option 11 - WIRING DIAGRAMS Figure 13 - Integrated High Limit Electronic Ignition Control11 - WIRING DIAGRAMS Figure 14 - Integrated High Limit Electronic Ignition Control12 -GENERAL INSTRUCTIONS Never run water in a hot empty boilerFILLING SYSTEM WITH WATER LIGHTING PROCEDURE FOR BOILER WITH INTERMITTENT PILOT SYSTEM service technician to inspect appliance and toFor Your Safety, Read Before Operating 13 - LIGHTING INSTRUCTIONSGAS VALVE SAFETY SHUTDOWN TEST SAFETY PILOTADJUST PILOT BURNER ADJUST LIMIT CONTROLS14 - OPERATING YOUR BOILER CHECK THERMOSTAT OPERATIONCLEANING YOUR BOILER AND BURNERS SAFETY RELIEF VALVE15 - MAINTAINING YOUR BOILER BURNERSNo electric power to boiler 16 - SERVICE HINTSControls out of adjustment Reset according to instructionsWATER TEMPERATURE CONTROL 17 - EQUIPMENT AND OPTIONAL ACCESSORIESDIAPHRAGM TYPE EXPANSION TANK AIR ELIMINATING FITTING AIR PURGERROLLOUT SWITCH FLAME ROLLOUT SAFETY SHUTOFF 17 - EQUIPMENT AND OPTIONAL ACCESSORIESBLOCKED VENT SAFETY SWITCH BLOCKED VENT SAFETY SHUTOFF A.3 Adjusting Settings A.1 Installation Environment ConsiderationsAPPENDIX A - CONTROL MODULE Do not use corrosive chemicals around or on module or gas controlTable 6 - Operation State Codes A.5 OperationAPPENDIX A - CONTROL MODULE StateA.7 Troubleshooting A.6 Boiler High Limit Temperature ControllerA.8 Troubleshooting Error Codes Figure 20 - Basic Control Algorithm ExampleError APPENDIX A - CONTROL MODULE Table 7 - Troubleshooting Error CodesDeﬁnition A.9 Intermittent PilotFigure 19 - Troubleshooting Pilot Flame Correct Pilot Flame 3/8 to 1/2 inch in ﬂame. See Figure 16, PageAPPENDIX A - CONTROL MODULE Lennox Industries Inc. Dallas, Texas PRODUCT LITERATUREECR International, Inc Manufactured by