Bradford-White Corp BWCV User Manual

Internet Version for Reference Only

Page 18

Copper Brute II

Page 19

NOTE: These systems are not allowed in all localities. 

Be sure to consult local codes.

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 heater 

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.

Although Copper Brute II water heaters are 

design-certified for outdoor installations, such 

installations are not recommended in areas subject to 

freezing temperatures, unless proper precautions are 

taken.

Power outage, interruption of gas supply, failure 

of system components, activation of safety devices, 

etc., may prevent a heater from firing. Any time a 

heater or in the pipes in the system. When water 

freezes, it expands. This can result in bursting of pipes 

in the system, or damage to the heater, which could 

result in leaking or flooding conditions.

Contact the local factory representative or 

Bradford White for additional information.

The appliance must be electrically grounded in 

accordance with the requirements of the authority 

having jurisdiction or, in the absence of such 

requirements, with the latest edition of the National 

Electrical Code, ANSI/NFPA 70, in the U.S. and 

with latest edition of CSA C22.1 Canadian Electrical 

Code, Part 1, in Canada. Do not rely on the gas 

or water piping to ground the metal parts of the 

heater. Plastic pipe or dielectric unions may isolate 

the heater electrically. Service and maintenance 

personnel, who work on or around the heater, may 

be standing on wet floors and could be electrocuted 

by an ungrounded heater.

Single pole switches, including those of safety 

controls and protective devices must not be wired in a 

grounded line.

All electrical connections are made in the field 

wiring terminal strip, which is located at the right side 

of the appliance.

NOTE: All internal electrical components have been 

prewired. No attempt should be made to connect 

electrical wires to any other location except the wiring 

box.

Connect a 15 amp. fused, 120-volt supply to the 

main power switch (hot leg is connected directly to 

switch). Neutral leg is connected directly to the white 

wire. Ground wire can be connected to the grounding 

screw in the box or on the switch.

Wiring diagrams are shown in Section 10 in 

Figures 18 through 22. Field wiring is shown in 

Section 10 in Figures 23 and 25.

The field wiring panel is located on the right side 

of the heater, and is shown in Figure 8. The following 

components are connected to the field wiring panel:

Temperature sensor: The sensor supplied loose 

with the heater is installed in the piping or tank, per 

the suggested piping diagrams, and connected to the 

“S C2” and “SUP S” terminals. See section 6.2 for 

“Mode” definitions and Figures 24 and 25 for field 

wiring schematics.

Field Installed Pump: A pump contactor can 

be wired to the “PMP” and “PMP” terminals (these 

terminals supply 24VAC to close the contactor 

whenever the heater pump would be operated). Note 

that in some cases, the heater pump is operated 

continuously.

External Alarm: An external power supply and 

alarm can be connected to the “ALRM” and “ALRM” 

terminals. In the event of an ignition system lockout, a 

contact closure occurs across these terminals.

External Heat Demand Indication: 24VAC 

is present across the “HT OUT” and “LWCO GND” 

terminals whenever the temperature control sees a 

system heat demand. This can be used to power a 

contactor (0.5 Amp, maximum) for devices operated 

whenever the heater could fire (combustion air fans, 

motorized louvers, etc.) NOTE: In some cases, the 

temperature control will always see a heat demand 

in the system, such as when the “Ht D” and Com D” 

terminals are jumpered.