Bradford-White Corp Copper Brute II Hydronic Boiler Water Connections Copper Brute II Boiler

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BRADFORD WHITE CORP.

 

 

 

 

SECTION 4A.

Water Connections —

Copper Brute II Boiler

4A.1 Heating System Piping:

Hot Supply Connections — Boiler

NOTE: This appliance must be installed in a closed pressure system with a minimum of 12 psi (82.7kPa) static pressure at the boiler.

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. Maintain 1" clearance to combustibles for hot water pipes.

Pipe the discharge of the relief valve (full size) to a drain or in a manner to prevent injury in the event of pressure relief. Install an air purger, an air vent,

a diaphragm-type expansion tank, and a hydronic flow check in the system supply loop. Minimum fill pressure must be 12psig (82.7kPa). Install shutoff valves where required by code.

Suggested piping diagrams are shown in Figures 4 through 8. These diagrams are meant only as a guide.

 

20°F

25°F

30°F

35°F

SIZE

flow

H/L

flow

H/L

flow

H/L

flow

H/L

 

gpm

feet

gpm

feet

gpm

feet

gpm

feet

500

43

1.7

34

1.1

28

0.9

24

0.7

750

64

3.3

51

2.3

43

1.7

36

1.2

1000

85

5.0

68

3.6

57

3.1

49

2.2

1250

106

8.1

85

6.1

71

4.7

61

3.4

1500

128

10.0

102

7.2

85

5.5

73

4.2

1750

N/R

N/R

119

10.5

99

8.4

85

5.8

2000

N/R

N/R

136

12.5

113

10.4

97

8.3

Metric Equivalent

 

 

 

 

 

 

 

11°C

14°C

17°C

19°C

SIZE

flow

H/L

flow

H/L

flow

H/L

flow

H/L

 

lpm

m

lpm

m

lpm

m

lpm

m

500

161

0.5

129

0.3

107

0.3

92

0.2

750

241

1.0

193

0.7

161

0.5

138

0.4

1000

321

1.5

257

1.1

214

0.9

184

0.7

1250

401

2.5

322

1.9

269

1.4

231

1.0

1500

483

3.0

386

2.2

322

1.7

276

1.3

1750

N/R

N/R

451

3.2

375

2.6

322

1.8

2000

N/R

N/R

515

3.8

429

3.2

368

2.5

 

 

 

 

 

 

 

 

 

Notes: gpm = gallons per minute, lpm = liters per minute, H/L = headloss, ft = headloss in feet, m = headloss in meters. Maximum temperature rise is 35°F (19°C), as shown. Headloss is for boiler’s heat exchanger only.

N/R = not recommended.

Table 8. Water Flow Requirements - BWCH.

Components required by local codes must be properly installed.

Note the recommended location of the temperature sensor on the diagrams; you must provide a location for the additional sensor shipped with

the Copper Brute II. This sensor may be strapped onto pipe from 1" to 4" diameter, or inserted into an immersion well.

4A.2 Cold Water Make-Up — Boiler

1.Connect the cold water supply to the inlet connection of an automatic fill valve.

2.Install a suitable back flow preventer between the automatic fill valve and the cold water supply.

3.Install shut off valves where required.

NOTE: The boiler, when used in connection with a refrigeration system, must be installed so the chilled medium is piped in parallel with the boiler with appropriate valves to prevent the chilled medium from entering the boiler.

The boiler piping system of a hot water heating boiler connected to heating coils located in air handling appliances where they may be exposed to refrigerated air circulation must be equipped with flow control valves or other automatic means to prevent gravity circulation of the boiler water during the cooling cycle.

A boiler installed above radiation level, or as required by the authority having jurisdiction, must be provided with a low water cutoff device either as a part of the boiler or at the time of boiler installation.

4A.3 Water Flow Requirements — Boiler

A hydronic heating (closed loop) application re-circulates the same fluid in the piping system. As a result, no new minerals or oxygen is introduced into the system. To ensure a proper operating temperature leading to long boiler life, a flow rate has been established based on the fluid temperature rise for this specific size boiler.

Pump-mounted boilers can be ordered for use in primary secondary piping systems. 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.

Table 8 specifies water flow rates for boilers, 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 system piping to properly size the pump.

The minimum inlet water temperature for the Copper Brute II is 120°F (49°C) to avoid condensing on the copper coils.

4A.4 Freeze Protection — Boiler

Boiler installations are not recommended in

areas where the danger of freezing exists unless proper

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Contents Copper Brute Table of Contents Replacement Parts MaintenanceTrouble Shooting Operating InstructionsModel Identification General InformationIntroduction Locating the Appliance WarrantyDimensions Dimensional Data Inches 91cm horizontally Combustion Air From Room Venting and Combustion AirCombustion Air Intake Combustion AirCategory I Vent VentingVent Categories Common Venting SystemsCombustion Air and Vent Through Side Wall Side Wall Vent Terminal Locating Vent & Combustion Air Terminals Category III Vent Side Wall Combustion Air TerminalVertical Vent Terminal Common Vent Test BoilersVent Terminals for Outdoor Units Vertical Combustion Air TerminalGas Supply and Piping 61-91m4A.2 Cold Water Make-Up Boiler Water Connections Copper Brute II Boiler4A.1 Heating System Piping Hot Supply Connections 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 4B.2 Hot Water Supply Piping Water Heater Water Connections Copper Brute II Water Heater4B.1 Water System 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 System Piping Primary Secondary Piping Programming the Temperature ControlChoosing the Mode 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 Maximum Boil MAX Boiler Target TemperatureBoiler Minimum Boil MIN Pump OperationDedicated Domestic Hot Water Outdoor Reset OperationSetpoint Operation Typical Gas Train Configuration Set Up for 0 to 2500 Feet Altitude Operating the Burner and Set UpAdvanced Programming Mode External Boiler OperationTo Restart the Copper Brute High Altitude Adjustment and Set UpShutting Down the Copper Brute Appliance Maintenance Component Description MaintenanceSystem Maintenance Ignition Controls Temperature ControlFlow Switch 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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