tank make sure that all the components are
accessible and easy to reach. Provide for clear
access to the storage tank, pump, expansion
tank, mixing valve, time clock, if present, and
other key components. If a component in the
potable water side of the system may require
future service or maintenance make the connec-
tions with brass unions. Use only brass nipples
and unions and copper and brass fittings in
plumbing the solar storage tank and expansion
tank. The use of galvanized fittings or nipples,
di-electric unions, CPVC, PVC or other plastic
pipe is prohibited.
4.8 Hard copper connections to the city cold
water supply line and the 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 leak-
ing on the water heater. If not detected in a
P.8
fig.15
SINGLE TANK SYSTEM SCHEMATIC
