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082809
Connect Piping to the Manifold
With each roof mounting kit, there are adapters to pipe to
the manifold. Included are:
l
Two compression tees to attach to the supply and return
terminations on each collector manifold or collector array;
l
Two copper pipe adapters that adapt from 22mm copper
pipe size (at compression tee) to 3/4” copper pipe. Also
included in some roof kits are two stainless steel flexible
hoses and additional compression couplings for copper pipe
adapters.
NOTE: Use 1/2” copper supply and return for collectors
with up to 24 tubes (one 8- and one 16-tube collector) and
3/4” copper for collectors with a 4- to 16-tube collector array.
Preferably use Type L.
Do not use PEX plastic tubing.
PEX tubing cannot withstand temperatures above 200°F
and will fail.
Always insulate outdoor tubing with high
temperature Insultube and weather proofing against UV
degradation. Use insulation with a wall thickness of at least
3/4”.
Install compression tees at supply and return on collector
manifold. Make sure the compression ring is well
onto the copper pipe terminating the manifold so that
the compression ring will not slide off the pipe as the
compression nut is tightened.
Install the Thermowell, which is for the collector sensor, on
the return outlet tee.
Solder the threaded Thermowell into
the tee
before installing the compression tee to the header.
Smear some heat transmission paste on the sensor and
insert the sensor into the Thermowell. Lock sensor into
place with set screw on the Thermowell.
Install the manual air vent on the manifold’s supply inlet
tee. If the piping rises above the collector on a closed loop
system, add an additional manual air vent at the highest
point of the loop.
manual
air vent
copper pipe adapter
22mm pipe size
to compression tee
3/4 inch solder to
copper pipe
Supply side
Thermowell must
be soldered in
place.
