EnerWorks Solar Water Heating Appliance
© 2011 EnerWorks Inc. - Page
29
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Energy Kinetics Inc. / Installation
Manual
Every attempt should be made to maintain a smooth and continuous fluid line
without unnecessary bends or disruptions. Ensure that supplemental expansion
tank is not at a local high point in fluid line.
1. Find a suitable location to mount supplemental expansion tank to solar storage tank, to hot-
water tank
(
Fig.4.9.2.1
)
or to wall. Level expansion tank, and secure with included screws (for
storage tank mount) or with appropriate wood or masonry screws (not included). Ensure that
access to expansion tank and to its Schrader air valve is maintained for charging and
maintenance procedures.
Fig. 4.9.2.1 – Supplemental expansion tank Fig. 4.9.2.2 – Supplemental expansion tank in line from
mounted to tank with self-drilling screws.
top of heat exchanger to collector.
2. Cut a 3/8” flexible, refrigeration-grade copper line to an appropriate length such that it will
connect supplemental expansion tank tee flare to flared port on upper manifold of Energy
Station. Install a smooth and continuous line without unnecessary bends. Slide on line
insulation and cut insulation to appropriate length. Slide flare-nuts onto each end of copper
line. De-burr cut ends and then flare tube ends (see
4.9.1 Energy Station connections
for
flare guidelines). Connect line with flare nuts to supplemental expansion tank flare and to
upper manifold flare (
Fig.4.9.2.2
). Tighten flare nuts with wrench while counter-torquing
manifold or expansion tank tee.
3. Follow a similar procedure to join supplemental expansion tank’s other flared port to collector
outlet with a smooth, continuous and insulated 3/8” flexible, refrigeration-grade copper line.
Insulate line and de-burr ends. Slide flare nuts over ends before flaring. Connect line and
tighten flare nuts while counter-torquing expansion tank tee or collector fitting (
Fig.4.9.2.2
).
4.
Unscrew plastic caps at bottom of supplemental expansion tank and at bottom of smaller
Energy Station expansion tank. Using a pressure gauge, ensure that air pressure in
expansion tanks is 25 psi. Adjust, if necessary, with a bicycle pump or air compressor.
4.10 Controller connections