ENERGY KINETICS Smart Solar EWRA1, Installation Manual, Page: 18 / 56

EnerWorks Solar Water Heating Appliance
Installation Manual / Energy Kinetics Inc. - Page
18 -
© 2011 EnerWorks Inc.
Fig.4.2.3 – Expansion tank Schrader valve and pressure measurement
10. [TOP-FEED TANK ONLY] Remove drain valve from bottom port of tank. Apply thread
sealant or Teflon tape to both ends of supplied 2½” x ¾” MNPT nipple. Thread into bottom
port. Thread middle port of supplied ¾” FIP-FIP-MNPT street-tee onto nipple and tighten
such that MNPT points to front of tank where Energy Station will be mounted (
Fig.4.2.4
).
11. [TOP-FEED TANK ONLY] Apply thread sealant or Teflon tape to removed drain valve. If
plastic is damaged, a metal replacement is recommended. Thread into remaining FIP port of
street-tee and tighten (
Fig.4.2.4
).
12. With Energy Station upright (vertical) and corrugated copper pipe straight, thread un-
connected end of corrugated pipe onto MNPT port of street-tee on top-feed tank (
Fig.4.2.4
),
or directly to cold inlet port of bottom-feed tank (
Fig.4.2.5
). Tighten, but do not over-tighten as
gasket may be damaged.
Fig.4.2.5 – Direct connection for bottom-feed tank.
13. Lift Energy Station and “walk” it in to tank, such that Energy Station mounting brackets are in
contact with storage tank wall and corrugated copper pipe has smooth bend (
Figs.4.2.6 &
4.2.7
). Place Energy Station as lower as possible, keeping at least (1¾” (50mm) off floor).
Place it on block or on boot such that bottom of heat exchanger is higher than drain. This will
allow water to drain from Energy Station if storage tank is drained. It also ensures access for
charging and maintenance (e.g., cleaning of heat transfer fluid filter.)
Access to hex-cap on underside of lower manifold must be maintained for removal,
cleaning and re-insertion of heat transfer fluid filter. Energy Station must be at least
1¾” (50mm) off floor to allow for service.
See, 9 – Scheduled Maintenance.
Drain removed from tank
and threaded into street-tee
Drain port of top-feed tank
¾” FIP-FIP-MNPT brass
street-tee
¾” MNPT nipple
C
orrugated pipe feeds
water to Energy Station
Direct connection to cold inlet
Bottom-feed tank
Fig.4.2.4 – Top-feed tank connection includes ¾” MNPT nipple and street-tee.