ENERGY KINETICS Smart Solar EWRA1, Installation Manual, Page: 20 / 56

EnerWorks Solar Water Heating Appliance
Installation Manual / Energy Kinetics Inc. - Page
20 -
© 2011 EnerWorks Inc.
top of upper manifold and into middle port (horizontal) of hot port ¾” FIP brass tee (
Fig.4.3.2
).
5. Insert lengths of ½” rigid copper pipe into ½” sweat fittings in upper manifold and in brass tee
such that they meet at top edge of tank
Fig.4.3.2 – Thermosiphon loop – horizontal and angled sections and vertical riser.
TIP: Using flexible copper water tube (certified for domestic water use) may
facilitate installation. Do not solder tube into upper manifold fitting in place as hot
solder and flux may damage anti-fouling (back flush) valve. Solder unbent tube and
fitting first, and then install in upper manifold. Bend tube and solder into hot-outlet
fitting.
6. Thermosiphon loop requires two 45°elbow bends to facilitate natural convection. One 90°
elbow is not acceptable. Cut pipe lengths to accommodate two 45°elbow x ½” sweat fittings
with an angled pipe length between them. Thermosiphon loop will consist of vertical riser and
horizontal section with angled (45°) section in between
(Fig. 4.3.2).
Adjust orientation of hot
port ¾” FIP brass tee to ensure a thermosiphon riser is vertical.
7. Cut vertical thermosiphon riser and insert ½” sweat x ½” sweat union coupling (not included)
(remove small section of pipe if necessary). Union coupling will facilitate maintenance and/or
removal of Energy Station if necessary. Union coupling will facilitate dry fitting and should be
close to top of thermosiphon riser splitting it into an upper and a lower section.
8. With thermosiphon loop fitted, remove pipe, union coupling, 45°-elbow fittings and unthread,
¾” MNPT x ½” sweat fittings.
Anti-fouling back flush valve should be visible in top port of upper manifold. Back
flush valve is made of plastic. Damage to back flush valve may occur if hot solder
or flux drips down into valve – do not perform any soldering of copper in place
¾”-MNPT x ½”-sweat
Thermosiphon
horizontal section
Thermosiphon
vertical riser
Angled
section
45°-elbow x
½”-sweat
fittings