Bradford-White Corp Modulating Boiler, BNTH, BNTV warranty Ignitor Assembly, Flame Sensor

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11.2.4 Ignitor Assembly

Brute Elite	Page 47

appliance and shut off all manual gas valves to the appliance. Remove the front door to the appliance and the control panel plastic bezel. Remove all wire connections from the control board. The control board connections are keyed to only allow connection in the proper location, but proper handling techniques should be used to avoid damage to the wiring or connectors. To remove the control push in on the two tabs on the left side of the board to unlatch the clips from the control panel. Rotate the control around the fastening points on the right side of the control to remove the hooks from the control panel. To replace the control repeat the steps above in the reverse order making sure to connect all wires in the proper location. Place the appliance in operation following the steps outlined in Section 10.

11.2.4 Ignitor Assembly

The ignitor assembly is a two rod system that consists of a ground rod and a sense rod. To remove the ignitor assembly, shut off the 120 Volt power supply to the appliance. Turn off all manual gas valves connecting the appliance to the main gas supply line. Remove the front door of the boiler to gain access to the ignitor assembly. Remove the two wires connected to the assembly. Then remove the two bolts connecting the

ignitor assembly to the burner door. Remove and replace the old ignitor assembly gasket. Reinstall a new ignitor assembly in the reverse order if the old assembly is determined defective. Replace gasket if necessary.

11.2.5 Flame Sensor

The flame sensor is a single rod system. To replace the flame sensor electrode, shut off the 120 Volt power supply to the boiler. Turn off all manual gas valves connecting the boiler to the main gas supply line. Remove the front door of the boiler to gain access to the flame sensor electrode. Remove the flame sensor wire from the electrode. Remove the two bolts fastening the electrode to the burner doors. Remove and replace the old flame sensor gasket. Reinstall a new flame sensor electrode in the reverse order if the old electrode is determined defective.

Caution

Igniters and sensors get hot and

can cause burns or injury.

Figure 34. Burner Service.

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Contents BRUTE ELITE Installation and Operation InstructionsDocument Installation and Operation Instructions forGeneral Information TABLE OF CONTENTSBrute Elite Control Setup and Operation SECTIONSECTION Modes of Operation SECTION MaintenanceTrouble Shooting Replacement PartsModel Nomenclature SECTION General Information1.1 Introduction 1.2 Model IdentificationFigure 2. Location of Components, Sizes Figure 1. Location of Components, SizesFigure 4. Location of Components, Size Figure 3. Location of Components, SizeFigure 6. Location of Components, Size Figure 5. Location of Components, SizeFigure 7. Location of Components, Sizes 750 and 1.5 Unpacking 1.4 Warranty1.6 Dimensions 1.3 Appliance OverviewDimensions are nominal and are shown in inches, cm Figure 9. Dimensional Drawing, Sizes2.1 Locating the Appliance Brute Elite is for indoor installations onlySECTION Locating the Appliance 3.1.2 Ducted Combustion Air SECTION Venting and Combustion Air3.1 Combustion Air 3.1.1 Combustion Air From RoomTable 5. Required Exhaust Vent Material 3.2 VentingFigure 10. Combustion Air and Vent Through Roof E. CPVC exhaust pipe section 80-500 not incl 3.3 Locating Vent & Combustion Air Terminals3.2.1 Venting Requirements Unique to Canada A. exhaust vent terminal not included3.3.3 Vertical Vent Terminal 3.3.5 Installations in the Commonwealth of Massachusetts3.3.2 Side Wall Combustion Air Terminal 5. For concentric vent, follow instructions included with vent kitFigure 12. Combustion Air and Vent Through Side Wall 4. Inspection 3.4 Common Vent Test2. Approved Carbon Monoxide Detectors 3. Signage3. Refer to Tables 6A, 6B, 6C and 6D to size piping SECTION Gas Supply and Piping4.1 Gas Supply and Piping Table 6A SECTION Pump Requirements5.1 Brute Elite Boiler Flow and Head Requirements see Table 5.2 Brute Elite Water Heater Flow and Head Requirements see Table6A.2 BNTH Cold Water Make-Up SECTION 6A Water Connections - BNTH Boiler6A.1 BNTH System Piping Hot Supply Connections 1. Sentinel Performance Solutions Group 2. Hercules Chemical Company 6A.4 BNTH Suggested Piping Schematics6A.3 Freeze Protection 6A.5 Recognized ChemicalsFigure 15. Hydronic Piping - Single Boiler zoning with circulators Page Figure 17. Hydronic Piping - Multiple Boilers zoning with circulators Page Brute ElitePage Page Brute ElitePage Water Connections - BNTV Water Heater SECTION 6B6B.1 BNTV Water Quality 6B.2 Piping Requirements6B.6 BNTV Suggested Pumps 6B.5 BNTV Suggested Piping Schematics6B.3 Cold Water Make-Up 6B.4 Freeze Protectionwater hardness at job site Figure 25. DHW Piping, Two Heaters, One Vertical TankFigure 26. DHW Piping, Two Heaters, Two Vertical Tanks Caution Pump sizing must be based oponSECTION Electrical Connections 7.1 Main Power7.4 Hydronic Call for Heat 7.10 Lead Lag/ Cascading Wiring Connections7.2 Pump Connections 7.3 24Vac Transformer with Integral Circuit BreakerFigure 28. Lead-Lag / Cascading Wiring Connections Figure 29. Ladder Diagram 7.11 Wiring Diagrams see Figures 29 andFigure 30. Wiring Diagram all sizes 8.2 Ignition Control- Sequence of Events SECTION Brute Elite Control Setup and Operation8.1 Display Navigation 8.7 Outlet Water Temperature 8.3 Modulation Control8.5 Anti-Short Cycle ASC 8.5 High Limit8.12.2 Lead Lag Master/Slave Selection 8.12.5 Lead Lag Base Load Setting8.13 Boiler Pump Interrupt 8.12.1 Lead Lag Setpoint9.1 Hydronic Heating Demand 9.2 Hydronic Heating with Outdoor Reset9.4 Hydronic Heating Using External Modulation Control SECTION Modes of OperationLet’s consider the following example 9.5 Hydronic Heating Using Local Lead- Lag/Cascading Feature9.7 Warm Weather Shutdown 9.8 Domestic Hot Water Demand BNTV only9.9 Domestic Hot Water Heating Using External Modulation Control 10.2.1 Burner Operation 10.2 Operating the Burner and Set UpSECTION Operating Instructions 10.1 Filling the Boiler System3. WAIT FIVE 5 MINUTES 10.2.2 Boiler Setup and Adjustment10.3 Shutting Down Brute Elite 10.4 To Restart Brute EliteFigure 33B. Brute Elite Gas Valves 600, 750 and 80-285Figure 33A. Brute Elite Gas Valves 285, 399 and yearly, unless otherwise noted SECTION Maintenance11.1 System Maintenance 11.2 Appliance Maintenance and Component DescriptionIgniters and sensors get hot and can cause burns or injury 11.2.4 Ignitor Assembly11.2.5 Flame Sensor 11.2.8 Heat Exchanger Coils 11.2.6 Transformer with Integral Circuit Breaker11.2.7 Blower 12.1 Sequence of Operation SECTION Trouble Shooting12.3 Error Codes - See Table 11.2.9 Gas Pressure Switches optionalCODE# PROBLEMSOLUTION continued next pagesee Section Table 18. Error CodesJacket Components - See Figure SECTION Replacement Parts13.2 Parts List 13.1 General InformationGas Train Components - See Figure Heat Exchanger Components - See Figure Electrical Components - See Figure Contact Customer Service at 800 900-9275Figure 35. Jacket Components Figure 36B. Internal Components, Sizes Figure 36A. Internal Components, SizesFigure 36C. Internal Components, Sizes Figure 37A. Gas Train Components, Sizes Figure 37B. Gas Train Components, Sizes Figure 38. Heat Exchanger Components Figure 39. Electrical Components Page Ambler, PA Tech. Service 800Service Parts 800 Warranty Service 800