EnerWorks Solar Water Heating Appliance
© 2011 EnerWorks Inc. - Page
23
-
Energy Kinetics Inc. / Installation
Manual
To back-up water heater
Solar-heated
water
To Energy
Station
Hot water
to home
Cold mains
supply
Solar
storage
tank
Back-up
water
heater
4.4 Water connections – bypass valves
1. Cut cold mains supply to existing water heater. Insert ball valve into cold supply line with tee
fittings upstream and downstream (either ¾” or ½” depending on existing pipe sizes)
(
Fig.4.4.1
). Tee fitting and line upstream from ball valve may be PEX or copper pipe. Tee
fitting and line downstream of ball valve must be rigid copper as temperature of solar-heated
water may exceed PEX ratings.
2. Tee fitting above ball valve will direct mains water supply to cold mains inlet of Energy Station
(¾” MNPT at right of upper manifold). A second ball valve should be connected downstream
from this tee (
Fig.4.4.1)
.
3. Tee fitting below initial ball valve will direct solar-heated water into existing water heater
(
Fig.4.4.1
). A third ball valve should be connected upstream from this tee.
4. Solder lines and fittings with lead-free solder if applicable and using accepted plumbing
techniques and standards.
5. Tie
Valve Positioning Label
to pipe in proximity to ball valves to indicate
Running
and
Maintenance
valve positions (
Fig.4.4.1
).