EnerWorks Solar Water Heating Appliance
Installation Manual / Energy Kinetics Inc. - Page
16
-
© 2011 EnerWorks Inc.
4.2 Energy Station installation
1. Shut off power or fuel supply to existing water heater. Shut off water supply to existing water
heater. Drain tank as needed for top-feed connections, or drain fully for bottom-feed
connections.
2. Position solar storage tank. A drain pan may be desirable or required by code. Extruded
polystyrene board is recommended to insulate tank from floor. Ensure enough space is left
around tank for proper ventilation and access for maintenance.
If installing Energy Station on BOTTOM-FEED TANK ONLY, Energy Station will
block access to lower thermostat cover – lower thermostat connections must be
completed before Energy Station is mounted (
see 4.10.1 Over-temperature control
connection
).
3.
[BOTTOM-FEED TANK ONLY]
Remove lower thermostat cover plate from side of storage
tank. Remove insulation and/or plastic plate covering element/thermostat. Disconnect wires
from heating element – not from thermostat. Connect black wire descending from top to
vacant terminal of thermostat
(Fig. 4.10.5).
Set lower thermostat setting to 120 °F (50 °C)
(Fig.4.10.5).
Carefully stow wires. Re-install insulation and cover plate to hide connections
(see 4.10.1 Over-temperature control connection).
4.
[TOP-FEED TANK ONLY]
Remove plastic dip tube from cold port (inlet) at top of tank
(optional). If no fitting is in cold port, apply thread sealant or Teflon tape to supplied ¾” MNPT
square-head brass plug. Thread plug into cold port at top of tank and tighten (5/8” open-
ended wrench, ¾” 12-point combination wrench or socket). If a ¾” MNPT nipple is already
installed in cold port, it may be removed or simply capped with supplied ¾” FIP cap. (This
may be used as an air-bleed when tank is filled.)
5. [ALL TANKS] Check hot water port (outlet) at top of storage tank for anti-siphon or
heat trap valve, gasket or flapper. If present – remove it. If anti-siphon or heat trap
valve, gasket or flapper is not removed, solar-heated water will not enter storage and
Appliance will not function as designed. If ¾” MNPT nipple is damaged during
removal, replace with new 2½” x ¾” MNPT nipple.
6. Remove Energy Station from box. Unscrew Phillips screws that hold outer case to Energy
Station. Remove cover and set aside where it will not get damaged. Remove protective cap
from water port at right of lower manifold.
7. With Energy Station lying flat on floor or on work bench, connect and tighten flexible
corrugated copper pipe to water port at right of lower manifold (
Fig.4.2.1
). Thread sealant or
Teflon tape is not required as gasket ensures water-tight seal. Do not over-tighten or gasket
may be damaged.