Bradford-White Corp BWCV Manual De Usuario

Internet Version for Reference Only

Page 20

Copper Brute II

Page 21

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.

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.

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.

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.)

• 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 contains information to identify the mode 

you should use for your system.

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.