HTP PHE199-119S - Manual (Page 16)

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LP- 204 REV. 3.25.14
Filled hot water storage tanks are very heavy, and should be located in areas that can structurally support such weight. Failure to
properly locate water storage tanks could result in property damage, personal injury, or death.
PART 6 – PIPING
The design and installation of the solar water heating system should be done by qualified individuals. It is important that good design
and installation practice be followed to assure that your system will operate properly. Failure to follow installation guidelines for you
solar water heater system could cause component failure and possible safety issues.
A. POTABLE WATER PIPING
It is very important that you do the potable piping before you pipe into your solar system. Failure to do so may damage your water
heater.
Do not introduce HTF into any fittings on the heater except those clearly marked for that purpose.
It is mandatory that all plumbing be done in accordance with local and state codes or warranty will be void. It is also necessary to use
both thread tape and pipe dope on all mechanical connections. The potable water piping is located on the side of your solar water
heater and marked Hot and Cold. It is recommended that unions or flexible copper connectors be used so heater can be easily
serviced. Install a shut-off valve on the cold feed near the solar water heater to isolate the tank for future service.
Provide clear access to the storage tank, pump, expansion tank, mixing valve, time clock and other key components. The components
on the potable side of the system may require future service or maintenance, so it is recommended that the connections be made with
brass unions. You must use copper and brass fittings in plumbing the solar storage tank and expansion tank. The use of galvanized
fittings, nipples, dielectric unions, CPVC, PVC, or other plastic pipe is prohibited.
Hard copper connections to the city cold water supply line and home hot water feed lines are recommended.
The gaskets in standard water heater flex hose connectors can become brittle and compressed over time and begin leaking on the
water heater. If not detected in a timely manner, a drip or leak may cause serious damage to the water heater
’s electrical components,
or, in extreme cases, cause the tank to leak from the outside in.
Figure 5 – Clearances