Bradford-White Corp BWCV, BWCH warranty Common Vent Test Boilers, Vent Terminals for Outdoor Units

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BRADFORD WHITE CORP.

 

 

 

 

2.3.3 Vertical Vent Terminal

When the unit is vented through the roof, the vent must extend at least 3 feet (0.9m) above the point at which it penetrates the roof. It must extend at least 2 feet (0.6m) higher than any portion of a building within a horizontal distance of 10 feet (3.0m), and high enough above the roof line to prevent blockage from snow. When the combustion air is taken from the roof, the combustion air must terminate at least 12" (30cm) below the vent terminal (see Figure 2).

2.3.4Vertical Combustion Air Terminal

When combustion air is taken from the roof, a

field-supplied rain cap or an elbow arrangement must be used to prevent entry of rain water (see Figure 2). The opening on the end of the terminal must be at least 12" (30cm) above the point at which it penetrates the roof, and high enough above the roof line to prevent blockage from snow. When the vent terminates on the roof, the combustion air must terminate at least 12" (30cm) below the vent terminal.

2.4Common Vent Test — Boilers

When an existing boiler is removed from a

common venting system, the common venting system is likely to be too large for proper venting of the appliances remaining connected to it.

At the time of removal of an existing boiler, the following steps shall be followed with each appliance remaining connected to the common venting system placed in operation, while the other appliances remaining connected to the common venting system are not in operation.

1.Seal any unused openings in the common venting system.

2.Visually inspect the venting system for proper size and horizontal pitch and determine there is no blockage or restriction, leakage, corrosion and other deficiencies which could cause an unsafe condition.

3.Insofar as it is practical, close all building doors and windows and all doors between the space in which the appliances remaining connected to the common venting system are located and other spaces of the building. Turn on clothes dryers and any appliance not connected to the common venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed. Do not operate a summer exhaust fan. Close fireplace dampers.

4.Place in operation the appliance being inspected. Follow the lighting instructions.

Adjust thermostat so appliance will operate continuously.

5.Test for spillage at the draft hood relief opening after 5 minutes of main burner operation. Use the flame of a match or candle, or smoke from a

cigarette, cigar or pipe.

6.After it has been determined that each appliance remaining connected to the common venting system properly vents when tested as outlined above, return doors, windows, exhaust fans, fireplace dampers and any other gas burning appliance to their previous conditions of use.

7.Any improper operation of the common venting system should be corrected so that the installation conforms to the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or CSA B149.1, Installation Codes. When resizing any portion of the common venting system, the common venting system should be resized to approach the minimum size as determined using the appropriate tables in Part II of the National Fuel Gas Code, ANSI Z223.1/ NFPA 54 and/or CSA B149.1, Installation Codes.

2.5Vent Terminals for Outdoor Units

For outdoor applications, the vent and

combustion air openings must be covered with proper terminals to prevent rain, snow and other objects from falling into the Copper Brute II.

If local codes allow, outdoor installations may use 1' of appropriately sized galvanized single wall or B-Vent and a rain cap for exhaust vent termination in the default configuration (venting out of the top). An appropriately sized galvanized 90° ell, positioned with the opening facing down, may be used on the combustion air inlet in the default configuration on the back of the unit. Note that some local codes may require a higher vertical vent height, extending above any perimeter fencing, etc. In installations where the appearance of the vent is objectionable, the low profile vent terminals in Table 6 may be used.

Part numbers for the low profile terminals to cover the vent and combustion air openings are shown in Table 6.

 

OUTDOOR

OUTDOOR

SIZE

VENT

COMBUSTION

 

TERMINAL

AIR TERMINAL

500

20254703

D2007900

750

20254705

D2007900

1000

20254705

D2008000

1250

D2007700

D2008000

1500

D2007700

D2008000

1750

D2007800

D2008000

2000

D2007800

D2008200

Table 6. Vent Terminals for Outdoor Units.

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Contents Copper Brute Table of Contents Maintenance Trouble ShootingReplacement Parts Operating InstructionsGeneral Information IntroductionModel Identification Warranty DimensionsLocating the Appliance Dimensional Data Inches 91cm horizontally Venting and Combustion Air Combustion AirCombustion Air From Room Intake Combustion Air Venting Vent Categories Category I Vent Common Venting SystemsCombustion Air and Vent Through Side Wall Locating Vent & Combustion Air Terminals Category III VentSide Wall Vent Terminal Side Wall Combustion Air TerminalCommon Vent Test Boilers Vent Terminals for Outdoor UnitsVertical Vent Terminal Vertical Combustion Air TerminalGas Supply and Piping 61-91mWater Connections Copper Brute II Boiler 4A.1 Heating System Piping Hot Supply Connections Boiler4A.2 Cold Water Make-Up Boiler 4A.3 Water Flow Requirements BoilerHydronic Piping Multiple Boilers, Primary Secondary System Hydronic Piping Multiple Boilers, Low Temperature System Hydronic Piping One Boiler, Multi-Temperature System Hydronic Piping Primary-Secondary, Reverse-Return Boiler CIRC. Pump Sized for Flow Through Boiler Water Connections Copper Brute II Water Heater 4B.1 Water System Piping Water Heater4B.2 Hot Water Supply Piping Water Heater 4B.3 Water Flow Requirements Water Heater4B.5 Freeze Protection Water Heater SupplyWater Heater Piping Multiple Heaters, One Tank Water Heater Piping Multiple Heaters, Multiple Tanks Main Power Temperature ControlElectrical Connections Field Wiring Panel External Staging Control Wiring AvertissementCopper Brute II 500 750 Ladder Diagram Copper Brute II 1000 Ladder Diagram Copper Brute II 1250 2000 Ladder Diagram Copper Brute II 500 1000 Wiring Schematic Copper Brute II 1250 1500 Wiring Schematic Copper Brute II 1750 2000 Wiring Schematic Terminal designations are as indicated Field Wiring for Modes 1 Avertissement Operating Instructions Sequence of OperationFilling the Boiler System Programming the Temperature Control Choosing the ModeSystem Piping Primary Secondary Piping Parallel PipingFor ALL Other Modes Hydronic Primary/Secondary Mode Choosing the Mode for your Application Mechanical aquastat in a domestic hot water storage tankMode 5 Primary secondary piping with outdoor reset Staging Mode Advanced TopicsDifferential Boiler Target Temperature Boiler Minimum Boil MINBoiler Maximum Boil MAX Pump OperationOutdoor Reset Operation Setpoint OperationDedicated Domestic Hot Water Typical Gas Train Configuration Operating the Burner and Set Up Advanced Programming ModeSet Up for 0 to 2500 Feet Altitude External Boiler OperationHigh Altitude Adjustment and Set Up Shutting Down the Copper BruteTo Restart the Copper Brute Maintenance System MaintenanceAppliance Maintenance Component Description Temperature Control Flow SwitchIgnition Controls IgnitorsBradford White Corp Trouble Shooting Troubleshooting the Temperature Control Troubleshooting Copper Brute ControlsCopper Brute II 500 Troubleshooting Error Codes Replacement Parts Parts ListSee Figures 35 Heat Exchanger Components Electrical Components Gas Train Components Burner Manifold Assy, 4 Burners, Left, LP For reference Internal Components Copper Brute II Hydronic Electrical Components H2214401F
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