Bradford-White Corp BNTV warranty 6A.3 Freeze Protection, 6A.4 BNTH Suggested Piping Schematics

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6A.3 Freeze Protection

Brute Elite

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6A.3 Freeze Protection

6A.4 BNTH Suggested Piping Schematics WARNING

Glycol must not be used in domestic hot water applications. Refer to Section 6B.4 for instructions on BNTV, domestic hot water freeze protection.

Brute Elite units are certified for indoor use only, and are not design-certified for placement outdoors.

Proper precautions for freeze protection are recommended for boiler installations in areas where the danger of freezing exists.

Power outage, interruption of gas supply, failure of system components, activation of safety devices, etc., may prevent a boiler from firing. Any time a boiler is subjected to freezing conditions, and the boiler is not able to fire, and/or the water is not able to circulate, there is a risk of freezing in the boiler or in the pipes in the system. When water freezes, it expands which may result in bursting of pipes, or damage to the boiler, which could result in leaking or flooding conditions.

Do not use automotive antifreeze. To help prevent freezing, Bradford White recommends the use of inhibited glycol concentrations between 20% and 35% glycol. Typically, this concentration will serve as burst protection for temperatures down to approximately -5°F (-20°C). If temperatures are expected to be lower than - 5°F (-20°C), glycol concentrations up to 50% can be used. When concentrations greater than 35% are used, water flow rates must be increased to maintain a 20°F to 25°F temperature rise through the boiler. NOTE:

Bradford White supplied pumps are not all capable of maintaining the reduced temperature rise required with glycol concentrations greater than 35%. If glycol concentrations required are greater than 35% a field supplied pump should be used.

IMPORTANT NOTES: Different glycol products may provide varying degrees of protection. Glycol products must be maintained properly in a heating system, or they may become ineffective. Consult the glycol specifications, or the glycol manufacturer, for information about specific products, maintenance of solutions, and set up according to your particular conditions.

6A.4 BNTH Suggested Piping Schematics

Figures 15 through 21 show suggested piping configurations for BNTH boilers. These diagrams are only meant as a guide. All components or piping required by local code must be installed.

6A.5 Recognized Chemicals

The following manufacturers offer glycols,

inhibitors, and anti foamants that are suitable for use in the Brute Elite. Please refer to the manufacturers instructions for proper selection and application.

1.Sentinel Performance Solutions Group

2.Hercules Chemical Company

3.Dow Chemical Company

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Contents Document Installation and Operation InstructionsInstallation and Operation Instructions for BRUTE ELITEBrute Elite Control Setup and Operation TABLE OF CONTENTSSECTION General InformationTrouble Shooting SECTION MaintenanceReplacement Parts SECTION Modes of Operation1.1 Introduction SECTION General Information1.2 Model Identification Model NomenclatureFigure 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 1.6 Dimensions 1.4 Warranty1.3 Appliance Overview 1.5 UnpackingDimensions are nominal and are shown in inches, cm Figure 9. Dimensional Drawing, SizesBrute Elite is for indoor installations only SECTION Locating the Appliance2.1 Locating the Appliance 3.1 Combustion Air SECTION Venting and Combustion Air3.1.1 Combustion Air From Room 3.1.2 Ducted Combustion Air3.2 Venting Figure 10. Combustion Air and Vent Through RoofTable 5. Required Exhaust Vent Material 3.2.1 Venting Requirements Unique to Canada 3.3 Locating Vent & Combustion Air TerminalsA. exhaust vent terminal not included E. CPVC exhaust pipe section 80-500 not incl3.3.2 Side Wall Combustion Air Terminal 3.3.5 Installations in the Commonwealth of Massachusetts5. For concentric vent, follow instructions included with vent kit 3.3.3 Vertical Vent TerminalFigure 12. Combustion Air and Vent Through Side Wall 2. Approved Carbon Monoxide Detectors 3.4 Common Vent Test3. Signage 4. InspectionSECTION Gas Supply and Piping 4.1 Gas Supply and Piping3. Refer to Tables 6A, 6B, 6C and 6D to size piping 5.1 Brute Elite Boiler Flow and Head Requirements see Table SECTION Pump Requirements5.2 Brute Elite Water Heater Flow and Head Requirements see Table Table 6ASECTION 6A Water Connections - BNTH Boiler 6A.1 BNTH System Piping Hot Supply Connections6A.2 BNTH Cold Water Make-Up 6A.3 Freeze Protection 6A.4 BNTH Suggested Piping Schematics6A.5 Recognized Chemicals 1. Sentinel Performance Solutions Group 2. Hercules Chemical CompanyFigure 15. Hydronic Piping - Single Boiler zoning with circulators Page Figure 17. Hydronic Piping - Multiple Boilers zoning with circulators Page Brute ElitePage Page Brute ElitePage 6B.1 BNTV Water Quality SECTION 6B6B.2 Piping Requirements Water Connections - BNTV Water Heater6B.3 Cold Water Make-Up 6B.5 BNTV Suggested Piping Schematics6B.4 Freeze Protection 6B.6 BNTV Suggested PumpsFigure 26. DHW Piping, Two Heaters, Two Vertical Tanks Figure 25. DHW Piping, Two Heaters, One Vertical TankCaution Pump sizing must be based opon water hardness at job siteSECTION Electrical Connections 7.1 Main Power7.2 Pump Connections 7.10 Lead Lag/ Cascading Wiring Connections7.3 24Vac Transformer with Integral Circuit Breaker 7.4 Hydronic Call for HeatFigure 28. Lead-Lag / Cascading Wiring Connections Figure 29. Ladder Diagram 7.11 Wiring Diagrams see Figures 29 andFigure 30. Wiring Diagram all sizes SECTION Brute Elite Control Setup and Operation 8.1 Display Navigation8.2 Ignition Control- Sequence of Events 8.5 Anti-Short Cycle ASC 8.3 Modulation Control8.5 High Limit 8.7 Outlet Water Temperature8.13 Boiler Pump Interrupt 8.12.5 Lead Lag Base Load Setting8.12.1 Lead Lag Setpoint 8.12.2 Lead Lag Master/Slave Selection9.4 Hydronic Heating Using External Modulation Control 9.2 Hydronic Heating with Outdoor ResetSECTION Modes of Operation 9.1 Hydronic Heating Demand9.7 Warm Weather Shutdown 9.5 Hydronic Heating Using Local Lead- Lag/Cascading Feature9.8 Domestic Hot Water Demand BNTV only Let’s consider the following example9.9 Domestic Hot Water Heating Using External Modulation Control SECTION Operating Instructions 10.2 Operating the Burner and Set Up10.1 Filling the Boiler System 10.2.1 Burner Operation10.3 Shutting Down Brute Elite 10.2.2 Boiler Setup and Adjustment10.4 To Restart Brute Elite 3. WAIT FIVE 5 MINUTES80-285 Figure 33A. Brute Elite Gas Valves 285, 399 andFigure 33B. Brute Elite Gas Valves 600, 750 and 11.1 System Maintenance SECTION Maintenance11.2 Appliance Maintenance and Component Description yearly, unless otherwise noted11.2.4 Ignitor Assembly 11.2.5 Flame SensorIgniters and sensors get hot and can cause burns or injury 11.2.6 Transformer with Integral Circuit Breaker 11.2.7 Blower11.2.8 Heat Exchanger Coils 12.3 Error Codes - See Table SECTION Trouble Shooting11.2.9 Gas Pressure Switches optional 12.1 Sequence of OperationSOLUTION PROBLEMcontinued next page CODE#see Section Table 18. Error Codes13.2 Parts List SECTION Replacement Parts13.1 General Information Jacket Components - See FigureGas 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 Service Parts 800 Tech. Service 800Warranty Service 800 Ambler, PA
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