Bradford-White Corp BRHHV Benutzerhandbuch

Page 16

In a water heating application (an open system), 

new water is constantly being introduced. With the 
new water comes a fresh supply of minerals that can 
be deposited on the unit’s heat exchanger. This is 
commonly known as scaling. The amount of minerals 
will depend upon the hardness of the water. Water can 
also be aggressive, and can erode metals, including 
copper, if the water is moved too quickly. Pump sizing 
for the Brute Magnum water heater is based upon the 
hardness of the water. The water flow is kept high 
enough to prevent scaling, but low enough to prevent 

tube erosion. For extremely soft or hard water, cupro-
nickel tubes are available. Contact a Bradford White 
Representative if you have questions or concerns about 
water quality.

The Brute Magnum water heater has an internal 

mixing system that ensures that the condensation does 
not occur on the finned copper heat exchanger, with 
heater return temperature down to 50°F (10°C).  This 
system, that consists of automatically actuated 
and linked valves, is set up at the factory, and is 
non-adjustable.  The return water goes through the 
stainless steel heat exchanger, then to the mixing 
system. (see Figure 7).