P.13
Low voltage wire shall be rated for the full
range of temperatures expected in the location,
typically wire is rated up to 160°F. The low
voltage sensor wire must not be in direct contact
with the pipe as the wire insulation may melt
when in contact with a hot pipe. Low voltage
sensor wire must be run OUTSIDE the pipe
insulation. Where the low voltage wire is run in
an exposed location, it should be run OUTSIDE
the pipe insulation but UNDER the insulation
jacket or wrap to protect the wire from UV
exposure.
4.7 Installing the Solar Tank
The solar tank is heated indirectly through a
double wall heat exchanger that is integral to
the tank. The heat exchanger wraps around the
tank shell and under the insulation and tank
jacket. Any leak in the heat exchanger will be
seen as fluid will leak out from the bottom tray
of the tank jacket.
In plumbing the solar storage tank and expan-
sion 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 and other key components.
If a component in the potable water side of the
system may require future service or mainte-
nance make the connections with brass unions
or other approved methods. Use only brass,
REXRACK
(FOR MULTIPLE COLLECTORS WITH PORTRAIT TILT)
fig. 11
