Bradford-White Corp BWCV Internet Version for Reference Only, “Parallel Piping”, Programming

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Internet Version for Reference Only

Copper Brute II

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you have. You must determine the type of piping the system has, the Mode the temperature control will operate in, and the various settings for that mode.

6.2.1 System Piping

“Primary Secondary Piping”

In the context of these instructions, “primary secondary piping” means the heater provides heat to a plumbing loop that has, in turn, one or more plumbing loops connected to it, which provide heat to radiant tubing, radiators, DHW heat exchangers, etc. This plumbing loop is the “primary loop.”

In primary secondary piping modes, the temperature control monitors the primary loop temperature. The extra sensor that is shipped loose with heater is installed in the primary loop. The temperature control fires the heater stages to provide the “target temperature” at that sensor. Over time, the temperature control will learn the system curve and adjust the firing of the stages to meet the demand in the most efficient way.

For complex systems, with variable speed injection circulators, multiple temperature zones, etc., you may need to consult with a qualified engineer or Bradford White.

“Parallel Piping”

The term “parallel piping” means the heater is supplying heat directly to one or more storage tanks, radiators, radiant zones, etc., plumbed in series. In these systems, the target temperature is the heater’s outlet temperature. An exception is for domestic hot water systems using mode 3, where the extra sensor is placed in the tank.

6.2.2 Choosing the Mode

There are six modes of operation for the heater's temperature control. The loose sensor must be installed and connected prior to programming the temperature control, as it provides sensing the “target” temperature. The location of the sensor is dependent on the type of piping used.

Modes 1 through 5 are the automatic modes, requiring the diagnostic panel’s AUTO/MAN switch (located on the slide-out control drawer) to remain in the default “AUTO” position. These modes enable the temperature control to fire the heater’s stages to meet the demand of the system. In these modes, the heater's temperature control continuously samples the inlet, outlet and target temperatures.

Mode 6 is the “Manual” mode, and the AUTO/ MAN switch must be moved to the “MAN” position. An external control, such as a building automation system or multiple heater control, just be wired to the field wiring panel in order to fire the heater, bypassing the temperature control. (See Section 5.3 for important information about external staging controls and building automation systems.)

Application

Mode

System

 

Setting

Sensors Used

• Parallel piping (non-

 

 

primary/secondary)

 

 

hydronic system

1

• None

• DHW with or without

 

 

a tank aquastat

 

 

• Primary/secondary

 

 

hydronic system

2

• Bradford White System

(preferred by

 

Sensor (shipped with

Bradford White)

 

each Copper Brute II)

• No outdoor reset

 

 

• Parallel piping (non-

 

 

primary/secondary)

 

 

hydronic system

3

• Bradford White System

• DHW

 

Sensor (shipped with

• Advanced control

 

each Copper Brute II)

capability

 

 

• No outdoor reset

 

 

• Parallel piping (non-

 

• Bradford White outdoor

primary/secondary)

 

reset sensor (optional

hydronic system

4

part #R2014000)

• Advanced control

 

 

capability

 

 

• Outdoor reset

 

 

• Primary/secondary

 

• Bradford White System

hydronic system

5

Sensor (shipped with

(preferred by

 

each Copper Brute II)

Bradford White)

 

 

• Outdoor reset

 

•Bradford White outdoor

 

 

reset sensor (optional

 

 

part # R2014000)

• Building automation

 

 

control

 

 

• Multiple boiler system

6

• None

control

 

 

• Energy management

 

 

system

 

 

• Other external control

 

 

 

 

 

Table 9. Modes and Sensors for Applications.

Table 9 contains information to identify the mode you should use for your system.

6.2.3 Programming

Before programming, you must determine the type of piping you have, the mode you will use, and install the extra sensor if required for that mode. See sections 6.2.1 and 6.2.2 for more information, or contact the factory.

There are three black programming buttons on the Temperature Control (see Figures 10 and 11). Press and hold all three programming buttons until the word “ADJUST” appears in the upper right corner of the LCD display (it replaces the word “VIEW”).

Pressing “Item” cycles you through the items you need to program. “Up Arrow” increases the value of that item, while “Down Arrow” decreases it. “ADJUST” mode exits if you don’t press a button for 20 seconds. To return to “ADJUST” mode, simply press and hold the three buttons again.

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Contents Installation and Operation Instructions for Internet Version for Reference OnlyInstallation and Operation Instructions Copper BruteSECTION 7. Maintenance TABLE OF CONTENTSSECTION 8. Trouble Shooting SECTION 9. Wiring DiagramsSECTION General Information 1.1 Introduction1.2 Model Identification 1.4 Dimensions 1.3 Warranty1.5 Locating the Appliance Figure 1. Dimensional Data 1.6 Locating Pump-Mounted Water Heater with Respect to Storage Tanks SECTION Venting and Combustion AirFrom Outside Wall 2.1 Combustion Air2.1.2 Intake Combustion Air 2.2.1 Vent Categories 2.2 Venting2.2.2 Category I Vent 2.2.3 Common Venting SystemsFigure 3. Combustion Air and Vent Through Side Wall Important Note Massachusetts Code Requirement 2.3 Locating Vent & Combustion Air Terminals2.3.1 Side Wall Vent Terminal 2.3.2 Side Wall Combustion Air Terminal2.5 Vent Terminals for Outdoor Units 2.4 Common Vent Test2.3.3 Vertical Vent Terminal 2.3.4 Vertical Combustion Air Terminal3.1 Gas Supply and Piping SECTION Gas Supply and Piping4.1 Water System Piping Water Heater SECTION Water Connections Copper Brute II Water Heater4.2 Hot Water Supply Piping - Water Heater 4.3 Water Flow Requirements - Water HeaterFigure 4. Water Heater Piping - One Heater, One Tank Table 8. Water Flow RequirementsFigure 5. Water Heater Piping - Multiple Heaters, One Tank Figure 6. Water Heater Piping - One Heater, Multiple Tanks Figure 7. Water Heater Piping - Multiple Heaters, Multiple Tanks SECTION Electrical Connections 5.1 Main Power4.4 Combined Water Heating potable and Space Heating - Water Heater 4.5 Freeze Protection - Water HeaterAVERTISSEMENT 5.3 External Staging Control WiringSECTION Operating Instructions 6.1 Sequence of Operation6.2 Programming the Temperature Control “Parallel Piping” 6.2.1 System Piping “Primary Secondary Piping”6.2.2 Choosing the Mode 6.2.3 Programming6.3.3 for more information BOIL MAX Boiler Maximum Temperature Boiler Start BOIL START The BOIL Mechanical aquastat in a domestic hot water storage tank 6.2.4 Choosing the Mode for your ApplicationMode 5 Primary secondary piping with outdoor reset 6.3 Advanced Topics6.3.1 Differential 6.3.2 Staging Mode6.3.3 Boiler Minimum BOIL MIN 6.3.5 Boiler Target Temperature 6.3.4 Boiler Maximum BOIL MAX6.3.6 Pump Operation 6.3.7 Set point Operation6.3.9 Outdoor Reset Operation Outdoor Design OUTDR DSGN - The6.3.10 External Heater Operation 6.4.1 Set Up for 0 to 2500 Feet Altitude 6.4 Operating the Burner and Set Up6.3.11 Limit Controls 6.3.12 Advanced Programming Mode7.1 System Maintenance SECTION Maintenance6.5 Shutting Down the Copper Brute 6.6 To Restart the Copper Brute7.2 Appliance Maintenance and Component Description 7.2.5 Automatic Reset High Limit Control 7.2.4 Manual Reset High Limit Control7.2.1 Burners 7.2.2 Filter7.2.9 Ignition Sensors 7.2.12 Flow Switch7.2.10 Transformer 7.2.11 Blowers8.1 Resolving Lockouts SECTION Trouble Shooting8.2 Delayed Ignition - Possible Causes 8.3 Short CyclingDESCRIPTION OF ERROR ERROR DISPLAYED8.6 Troubleshooting Copper Brute II Controls Figure 18. Copper Brute II 500 - 750 Ladder Diagram SECTION Wiring DiagramsFigure 19. Copper Brute II 1000 Ladder Diagram Figure 20. Copper Brute II 1250 - 2000 Ladder Diagram Figure 21. Copper Brute II 500 - 1000 Wiring Schematic Figure 22. Copper Brute II 1250 - 2000 Wiring Schematic Note Positions of field wiring terminals may vary, but Figure 23. Field Wiringterminal designations are as indicated Wiring for Modes 1 Reference OnlyFigure 24. Field MODE25. Field Wiring for Mode Version for Reference OnlyInternet Copper Brute II 1250, 1500, 1750 & 2000 4-Stage Heater
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