Condensate Drain; Freeze Protection; Bnth Suggested Piping Schematics; Recognized Chemicals - Bradford White Brute Installation And Operating Instructions Manual

Brute
HIGH EFFICIENCY COMMERCIAL BOILERS AND VOLUME WATER HEATERS
6A.3 Condensate Drain
A condensate drain trap is built into the Brute unit.
No additional or secondary trap is required. .
Connect a 3/4" PVC pipe between the drain connection and
a floor drain (or a condensate pump if a floor drain is not
accessible).
The condensate drain must be installed so as to prevent
accumulation of condensate. When a condensate pump is not
used, the tubing must continuously slope downward toward
the drain with no spiraling. Consult local codes for the proper
disposal method for the condensate.
If installing in a location that may experience freezing
temperatures, precautions must be taken to prevent water
in the heat exchanger and condensate inside and outside of
the boiler from freezing. Damage due to freezing water or
condensate is not covered by the warranty.
Condensate is mildly acidic (pH = 5), and may harm
some floor drains and/or pipes, particularly those
that are metal. Ensure that the drain, drainpipe,
and anything that will come in contact with the
condensate can withstand the acidity, or neutralize
the condensate before disposal. Damage caused by
failure to install a neutralizer kit or to adequately
treat condensate will not be the manufacturer's
responsibility.
6A.4 Freeze Protection
Glycol must not be used in domestic hot water
applications. Refer to Section 6B.4 for instructions on
NTV, domestic hot water freeze protection.
Indoor Brute units are certified for indoor use only. Outdoor
Brutes are additionally certified for outdoor use.
Proper precautions for freeze protection are recommended
for boiler installations in areas where the danger of freezing
exists.
Power outage, interruption of gas supply, failure of system
components, activation of safety devices, etc., may prevent a
boiler from firing. Any time a boiler is subjected to freezing
conditions, and the boiler is not able to fire, and/or the
water is not able to circulate, there is a risk of freezing
in the boiler or in the pipes in the system. When water
freezes, it expands which may result in bursting of pipes, or
damage to the boiler, which could result in leaking or flooding
conditions.
Caution
WARNING
Do not use automotive antifreeze. To help prevent freezing,
Bradford White recommends the use of inhibited glycol
concentrations between 20% and 35% glycol. Typically, this
concentration will serve as burst protection for temperatures
down to approximately -5°F (-20°C). If temperatures are
expected to be lower than -5°F (-20°C), glycol concentrations
up to 50% can be used. When concentrations greater than
35% are used, water flow rates must be increased to maintain
a 20°F to 25°F temperature rise through the boiler.
NOTE: Bradford White supplied pumps are not all
capable of maintaining the reduced temperature rise
required with glycol concentrations greater than 35%.
If glycol concentrations required are greater than 35% a
field supplied pump should be used.
Different glycol products may provide varying degrees of
protection. Glycol products must be maintained properly
in a heating system, or they may become ineffective.
Consult the glycol specifications, or the glycol
manufacturer, for information about specific products,
maintenance of solutions, and set up according to your
particular conditions.
6A.5 BNTH Suggested Piping Schematics
Figure 24 through Figure 30 show suggested piping
configurations for BNTH boilers. These diagrams are only
meant as a guide. All components or piping required by local
code must be installed.
6A.6 Recognized Chemicals
The following manufacturers offer glycols, inhibitors, and
anti foamants that are suitable for use in the Brute. Please
refer to the manufacturers instructions for proper selection and
application.
1. Sentinel Performance Solutions Group
2. Hercules Chemical Company
3. Dow Chemical Company
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Caution