Bradford-White Corp BRUTE DELUXE BMT2V Manual De Usuario

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SECTION 4B.
Water Connections —  
Brute Deluxe Water Heater
4B.1 Water System Piping —
 
 Water Heater
Hot water piping should be supported by suitable 
hangers or floor stands. Do not support piping with 
this appliance. Due to expansion and contraction of 
copper pipe, consideration should be given to the type 
of hangers used. Rigid hangers may transmit noise 
through the system resulting from the piping sliding in 
the hangers. It is recommended that padding be used 
when rigid hangers are installed.
The Brute Deluxe can be used with several 
different types of readily available storage tanks. A 
pump draws water from the storage tank and pumps 
the water through the heater and back into the tank. 
Pump-mounted units have a circulating pump built 
into the water heater. The pumps used are sized for 
the head loss through the heater, plus 30 feet (9.1 m) 
of full-sized piping (same size as boiler outlet) and 
a normal number of fittings. Pumps used on pump-
mounted unit are sized for soft/normal or hard water, 
so make sure a pump-mounted unit matches the water 
quality of the installation.
Pipe the outlet from the heater’s relief valve 
such that any discharge from the relief valve will be 
conducted to a suitable place for disposal when relief 
occurs. Do not reduce line size or install any valves in 
this line. The line must be installed to allow complete 
drainage of both the valve and the line.
Suggested piping diagrams are shown in
 Figures 
9, 10, 11 and 12.
 These diagrams are meant only as a 
guide. Components required by local codes must be 
properly installed.
Note the recommended location of the 
temperature sensor on the diagrams. The Brute Deluxe 
is shipped with an additional sensor that can be used 
for more full-featured domestic water heating control. 
To get these features, you must provide a location for 
the additional sensor. It can be strapped to a pipe from 
1" to 4" diameter, or inserted into a tank immersion 
well.
The minimum inlet water temperature for the 
Brute Deluxe is 120°F (49°C) to avoid condensing on 
the copper coils.
4B.2 Hot Water Supply Piping —
 
 Water Heater
Follow the tank manufacturer’s guidelines for 
completion of the hot water system connections.
NOTE: A listed temperature and pressure relief 
valve listed as complying with the Standard 
for Relief Valves and Automatic Gas Shutoff 
Devices for Hot Water Supply Systems (ANSI 
Z21.22/CSA 4.4), of suitable discharge capacity 
must be installed in the separate storage tank 
system.
If the Brute Deluxe water heater is installed in 
a closed water supply system, such as one having a 
backflow preventer in the cold water supply line, the 
relief valve may discharge periodically, due to thermal 
expansion. Means (such as a properly-sized expansion 
tank) shall be provided to control thermal expansion. 
Contact the water supplier or local plumbing inspector 
on how to control this situation.
4B.3 Water Flow Requirements —
 
 Water Heater
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. The water 
flow requirements for the Brute Deluxe water heater 
are 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.
Pump-mounted water heaters can be ordered 
with standard pumps for soft or normal water or with 
pumps for hard water. The pumps used are sized for 
the head loss through the heater, plus 30 feet (9.1m) 
of full-sized piping (same size as heater outlet) and a 
normal number of fittings. 
Table 9 
specifies water flow rates for water 
heaters, which will enable the user to size a pump. The 
head loss shown is for the heater only, and the user 
will need to add the head loss of the piping system to 
properly size the pump.
4B.4 Combined Water Heating (potable)  
 and Space Heating — Water Heater
NOTE: These systems are not allowed in the 
Commonwealth of Massachusetts.
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 boiler 
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.
When the system requires water for heating at 
temperatures higher than required for other uses, 
an anti-scald mixing or tempering valve shall be