Brute Elite, Page | Bradford-White Corp Modulating Boiler, BNTH

Brute Elite	Page 35

7.11 Wiring Diagrams (see Figures 29 and 30)

Caution

Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing

Figure 29. Ladder Diagram.

Page 35

Image 35

Bradford-White Corp Modulating Boiler, BNTH, BNTV Wiring Diagrams see Figures 29 and, Brute Elite, Page, Ladder Diagram

Contents

BRUTE ELITE Installation and Operation InstructionsDocument Installation and Operation Instructions for General Information TABLE OF CONTENTSBrute Elite Control Setup and Operation SECTION SECTION Modes of Operation SECTION MaintenanceTrouble Shooting Replacement Parts Model Nomenclature SECTION General Information1.1 Introduction 1.2 Model Identification Figure 2. Location of Components, Sizes Figure 1. Location of Components, Sizes Figure 4. Location of Components, Size Figure 3. Location of Components, Size Figure 6. Location of Components, Size Figure 5. Location of Components, Size Figure 7. Location of Components, Sizes 750 and 1.5 Unpacking 1.4 Warranty1.6 Dimensions 1.3 Appliance Overview Dimensions are nominal and are shown in inches, cm Figure 9. Dimensional Drawing, Sizes 2.1 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 Room Table 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 included 3.3.3 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 kit Figure 12. Combustion Air and Vent Through Side Wall 4. Inspection 3.4 Common Vent Test2. Approved Carbon Monoxide Detectors 3. Signage 3. 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 Table 6A.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 Chemicals Figure 15. Hydronic Piping - Single Boiler zoning with circulators Page Figure 17. Hydronic Piping - Multiple Boilers zoning with circulators Page Brute Elite Page Page Brute Elite Page Water Connections - BNTV Water Heater SECTION 6B6B.1 BNTV Water Quality 6B.2 Piping Requirements 6B.6 BNTV Suggested Pumps 6B.5 BNTV Suggested Piping Schematics6B.3 Cold Water Make-Up 6B.4 Freeze Protection water 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 opon SECTION Electrical Connections 7.1 Main Power 7.4 Hydronic Call for Heat 7.10 Lead Lag/ Cascading Wiring Connections7.2 Pump Connections 7.3 24Vac Transformer with Integral Circuit Breaker Figure 28. Lead-Lag / Cascading Wiring Connections Figure 29. Ladder Diagram 7.11 Wiring Diagrams see Figures 29 and Figure 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 Limit 8.12.2 Lead Lag Master/Slave Selection 8.12.5 Lead Lag Base Load Setting8.13 Boiler Pump Interrupt 8.12.1 Lead Lag Setpoint 9.1 Hydronic Heating Demand 9.2 Hydronic Heating with Outdoor Reset9.4 Hydronic Heating Using External Modulation Control SECTION Modes of Operation Let’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 only 9.9 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 System 3. WAIT FIVE 5 MINUTES 10.2.2 Boiler Setup and Adjustment10.3 Shutting Down Brute Elite 10.4 To Restart Brute Elite Figure 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 Description Igniters 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 optional CODE# PROBLEMSOLUTION continued next page see Section Table 18. Error Codes Jacket Components - See Figure SECTION Replacement Parts13.2 Parts List 13.1 General Information Gas Train Components - See Figure Heat Exchanger Components - See Figure Electrical Components - See Figure Contact Customer Service at 800 900-9275 Figure 35. Jacket Components Figure 36B. Internal Components, Sizes Figure 36A. Internal Components, Sizes Figure 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

Bradford-White Corp Modulating Boiler, BNTH Wiring Diagrams see Figures 29 and, Brute Elite, Page

Models: Modulating Boiler BNTV BNTH

7.11 Wiring Diagrams (see Figures 29 and 30)

Figure 29. Ladder Diagram.