Section 6B; Water Connections - Bntv Water Heater; Bntv Water Quality; Piping Requirements - Bradford White Brute BNTH Installation And Operation Instructions Manual

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Section 6B -

WATER CONNECTIONS -
BNTV WATER HEATER
Section 6 is divided into two parts. Section
6A covers BNTH units designed for hydronic
heating. Section 6B covers BNTV models,
which are designed exclusively for "volume
water" domestic hot water applications. Refer
to the proper section for instructions on
installing and piping your product. Refer to
Table 11 on page 17 for the connection pipe
sizes required.
6B.1 BNTV Water Quality
BNTV water heaters must be installed in water
conditions of 10gpg hardness or less with a pH range
of 8.2 to 9.5. Operating the BNTV in water with higher
hardness levels will cause heat exchanger fouling,
erosion, or corrosion leading to premature component
failure, reduced efficiency, heat exchanger failure
NOTES:
1. Optional CWMU & Recirc. line location.
2. Locate BNTV DHW sensor or remote aquastat well
in lower 1/3 of tank.
3. Back flow preventer may be required - check local codes.
4. Thermal expansion tank may be required - check local codes.
5. Factory mounted pumps are sized for a max pipe length of
30' total, 6-90° elbows, full pipe size.
6. Caution: Pump sizing must be based on water hardness at job site.
Figure 23. DHW Piping, One Heater, One Vertical Tank
or system failure. Failure of this type will not be
warranted. If the water in use exceeds the conditions
recommended, a water softener or other device should
be installed to improve water quality.
6B.2 Piping Requirements
Water piping should be supported by suitable hangers
and floor stands. Do not support piping with the
appliance. Due to expansion and contraction of copper
pipe, consideration should be given to the type of
hangers and supports used. Rigid hangers may transmit
noise through the system resulting from piping sliding in
the hangers. It is recommended that padding be used
when rigid hangers are installed. Maintain 1" (2.5cm)
clearance to combustibles for hot water pipes.
Pipe the discharge of the relief valve (full size) to the
drain or in a manner to prevent injury in the event of
pressure relief. Install a diaphragm-type expansion
WARNING: This drawing shows
suggested piping configuration and
valving. Check with local codes and
ordinances for additional requirements.
B W
RADFORD HITE