Bradford-White Corp Copper Brute II Hydronic Boiler, BWCV 4B.1 Water System Piping Water Heater

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BRADFORD WHITE CORP.

 

 

 

 

SECTION 4B.

Water Connections —

Copper Brute II Water Heater

4B.1 Water System Piping —

Water Heater

Hot water piping should be supported by suitable hangers or floor stands. Do not support piping with this appliance. Due to expansion and contraction of copper pipe, consideration should be given to the type of hangers used. Rigid hangers may transmit noise through the system resulting from the piping sliding in the hangers. It is recommended that padding be used when rigid hangers are installed.

The Copper Brute II can be used with several different types of readily available storage tanks. A pump draws water from the storage tank and pumps the water through the heater and back into the tank. Pump-mounted units have a circulating pump built into the water heater. The pumps used are sized for the headloss through the heater, plus 30 feet (9.1m) of full- sized piping (same size as boiler outlet) and a normal number of fittings. Pumps used on pump-mounted unit are sized for soft/normal or hard water, so make sure a pump-mounted unit matches the water quality of the installation.

Pipe the outlet from the heater’s relief valve such that any discharge from the relief valve will be conducted to a suitable place for disposal when relief occurs. Do not reduce line size or install any valves in this line. The line must be installed to allow complete drainage of both the valve and the line.

Suggested piping diagrams are shown in Figures 9 through 12. These diagrams are meant only as a guide. Components required by local codes must be properly installed.

Note the recommended location of the temperature sensor on the diagrams. The Copper Brute

IIis shipped with an additional sensor that can be used for more full-featured domestic water heating control.

To get these features, you must provide a location for the additional sensor. It can be strapped to a pipe from 1" to 4" diameter, or inserted into a tank immersion well.

The minimum inlet water temperature for the

Copper Brute II is 120°F (49°C) to avoid condensing on the copper coils.

4B.2 Hot Water Supply Piping —

Water Heater

Follow the tank manufacturer’s guidelines for completion of the hot water system connections.

NOTE: A listed temperature and pressure relief valve listed as complying with the Standard for Relief Valves and Automatic Gas Shutoff Devices

for Hot Water Supply Systems (ANSI Z21.22 / CSA 4.4) of suitable discharge capacity must be installed in the separate storage tank system.

If the Copper Brute II water heater is installed in a closed water supply system, such as one having a backflow preventer in the cold water supply line, the relief valve may discharge periodically, due to thermal expansion. Means (such as a properly-sized expansion tank) shall be provided to control thermal expansion. Contact the water supplier or local plumbing inspector on how to control this situation.

4B.3 Water Flow Requirements —

Water Heater

In a water heating application (an open system), new water is constantly being introduced. With the new water comes a fresh supply of minerals that can be deposited on the unit’s heat exchanger. This is commonly known as scaling. The amount of minerals will depend upon the hardness of the water. Water can also be aggressive, and can erode metals, including copper, if the water is moved too quickly. The water flow requirements for the Copper Brute II water heater are based upon the hardness of the water. The water flow is kept high enough to prevent scaling, but low enough to prevent tube erosion. For extremely soft or hard water, cupro-nickel tubes are available. Contact a Bradford White Representative if you have questions or concerns about water quality.

Pump-mounted water heaters can be ordered with standard pumps for soft or normal water or with pumps for hard water. The pumps used are sized for the headloss through the heater, plus 30 feet (9.1m) of full-sized piping (same size as heater outlet) and a normal number of fittings.

Table 9 specifies water flow rates for water heaters, which will enable the user to size a pump. The headloss shown is for the heater only, and the user will need to add the headloss of the piping system to properly size the pump.

4B.4 Combined Water Heating (potable) and Space Heating — Water Heater

NOTE: These systems are not allowed in the Commonwealth of Massachusetts.

Piping and components connected to this water heater for the space heating application shall be suitable for use with potable water.

Toxic chemicals, such as used for boiler treatment, shall not be introduced into the potable water used for space heating.

This water heater when used to supply potable water shall not be connected to any heating system or component(s) previously used with a non-potable water heating appliance.

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Contents Copper Brute Table of Contents Maintenance Trouble ShootingReplacement Parts Operating InstructionsModel Identification General InformationIntroduction Locating the Appliance WarrantyDimensions Dimensional Data Inches 91cm horizontally Venting and Combustion Air Combustion AirCombustion Air From Room Intake Combustion AirVenting Vent CategoriesCategory 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 Electrical Connections Main PowerTemperature Control 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 Filling the Boiler System Operating InstructionsSequence of Operation 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 Differential Staging ModeAdvanced Topics Boiler Target Temperature Boiler Minimum Boil MINBoiler Maximum Boil MAX Pump OperationDedicated Domestic Hot Water Outdoor Reset OperationSetpoint Operation Typical Gas Train Configuration Operating the Burner and Set Up Advanced Programming ModeSet Up for 0 to 2500 Feet Altitude External Boiler OperationTo Restart the Copper Brute High Altitude Adjustment and Set UpShutting Down the Copper Brute Appliance Maintenance Component Description MaintenanceSystem Maintenance 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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