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solar collector array
anti-scald
valve
expansion tank
fill/purge valves
air separator
circulator w/
isolation
flanges
solar
controller
solar indirect water heater
pressure
relief
valve
conventional water heater
electric
heating
element
electric
heating
element
cold water
hot water
N.C.
N.O.
N.O.
air vent w/ shut
off valve
Figure 4:
Two tank system with existing heater
A typical two tank system is shown in Figure 4. The two tank system is mainly used
where a conventional water heater is already installed.
SECTION IV: INSTALLATION (cont .)