HTP SuperStor Ultra Indirect Fired Water Heaters - Manual (Page 14)

14
LP-83 Rev. 3.24.14
H. PIPING
NOTES:
1. Minimum pipe size should match
connection size. Upsize pipe accordingly
if greater flow is required.
2. A thermal expansion tank suitable for
potable water must be sized and installed
within this piping system between the
backflow preventer and the cold water
inlet.
3. All circulators should have an integral
flow check.
4. Drains and check valve between unit
and storage tank will assist in purging air
from system.
5. This drawing is meant to demonstrate
system piping only. The installer is
responsible for all equipment and
detailing required by local codes. In
Massachusetts, you must install a
vacuum relief valve per 248 CMR.
6. Mixing valve application is optional,
but recommended to help prevent
scalding. See Part 3, Section E for more
information.
Figure 4 - Typical Mixing Valve Installation