Bradford-White Corp BWCV User Manual

Internet Version for Reference Only

Page 24

Copper Brute II

Page 25

If the heater is not a pump mounted model, a 

24VAC pump contactor may be connected to the 

“PMP” terminals to control a field installed pump.

Program the temperature control to use “Mode 

2.” The AUTO/MAN switch must be in the AUTO 

position in this mode.

Bradford White strongly suggests the use of 

primary secondary piping with the Copper Brute II 

heater. This piping style best ensures that the Copper 

Brute II will have proper water flow. However, non-

primary secondary methods can be used successfully, 

so this section has been included.

Install the outdoor reset sensor, Bradford White 

part number R2014000, and connect the leads to the 

“OD S” and “S C2” terminals.

You must provide an indication of the system’s 

heat demand by removing the jumper across the 

“ComD” and “HtD” terminals on the field wiring 

panel and connecting a zone valve or zone pump end 

switch, thermostat, aquastat or other contact closure to 

these terminals. If the “ComD” and “HtD” terminals 

are left jumpered, the control will always see a heat 

demand and remain in “Dem” mode, with the boiler 

pump running continuously. See Section 5.2 for more 

information.

Reset Override: An additional thermostat or aquastat 

may be connected to the “Set D” and “Com D” 

terminals. A call for heat from either of these controls 

will start the heater’s pump and cause the heater to fire. 

If the heater is not a pump mounted model, a 

24VAC pump contactor may be connected to the 

“PMP” terminals to control a field installed pump.

Program the temperature control to use “Mode 

4.” The AUTO/MAN switch must be in the AUTO 

position in this mode.

Install the outdoor reset sensor, Bradford White 

part number R2014000, and connect the leads to 

the “OD S” and “S C2” terminals. Install a “supply 

sensor” in the primary loop using the Bradford White 

part number R2014800 sensor (included with every 

heater). Connect the sensor to the “S C2” and “SUP S” 

terminals. 

You must provide an indication of the system’s 

heat demand by removing the jumper across the 

“ComD” and “HtD” terminals on the field wiring 

panel and connecting a zone valve or zone pump end 

switch, thermostat, aquastat or other contact closure to 

these terminals. If the “ComD” and “HtD” terminals 

are left jumpered, the control will always see a heat 

demand and remain in “Dem” mode, with the heater 

pump running continuously. See Section 5.2 for more 

information.

A secondary aquastat, such as for a separate heat 

exchanger for DHW, can be connected to the “Set D” 

and “Com D” terminals. A call for heat from these 

controls will start the heater pump and cause the heater 

to fire.

If the heater is not a pump mounted model, a 

24VAC pump contactor may be connected to the 

“PMP” terminals to control a field installed pump.

Program the temperature control to use “Mode 

5.” The AUTO/MAN switch must be in the AUTO 

position in this mode.

Leave the jumper installed between “Ht D” and 

“Com D” terminals.  There are terminals on the field 

wiring panel that must be wired per the instructions 

in section 5.3 of this manual.  Other wiring methods 

The AUTO/MAN switch is located on the circuit 

board in the slide-out control panel on the front of the 

heater.  This switch is placed in the manual position 

(MAN) when an external control is controlling the 

heater stages.

Program the temperature control to use Mode 6.  

Mode 6 tells the heater control that an external staging 

control is being used.

    For most installations, section 6.2 provides all 

the information required to set up the Copper Brute II 

heater, and this section should be skipped. Continue 

setup in section 6.4.

This section provides definitions of the 

programming parameters, advanced programming 

topics, and other information that may be of interest.

Advanced programming mode allows the 

installer to set the temperature control for proportional 

staging. In advanced programming mode, the 

interstage differential, interstage delay, interstage on 

and off delay, and minimum time on and off are all set 

manually.

NOTE: Advanced programming mode is not required 

in most applications, and is intended for advanced 

installers only. 

To enter advanced programming mode, remove 

the bezel on the temperature control by pulling out at 

the bottom. Remove the small Phillips head screw to 

access the dip switch. The dip switch is mounted on 

a circuit board. Locate the letter “A” on the circuit 

board and slide the corresponding dip switch toward 

the letter “A”. The default setting of this dip switch is 

toward the “OFF” lettering on the circuit board.