HTP SuperStor Ultra Indirect Fired Water Heaters - Manual (Page 23)

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LP-83 Rev. 3.24.14
Figure 16 – Typical Multiple Tank Installation
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.
7. All piping in parallel used for large dumps of hot water, high usage, short duration.
8. Massachusetts requires a limit of (4) tanks per mechanical room. Consult with your local inspector.
PART 4 – HEATER CONTROL AND WIRING
A. CONTROL
Install control element into well and tighten in place with screws on control body. Thermal conductive paste is recommended. Once the
control is operational, it is very important to make sure the control is maintaining the desired operating temperature.
B. WIRING
Wiring is to be done in accordance with all applicable local and state codes. Turn off all power related to the boiler starting and wiring
procedures. It is recommended that a disconnect switch be installed between the boiler control and water heater.