HTP SuperStor Ultra Indirect Fired Water Heaters User Manual
Page 15
15
LP-83 Rev. 3.24.14
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 5
– Typical Expansion Tank Application