EnerWorks Solar Water Heating Appliance
Installation Manual / Energy Kinetics Inc. - Page
30
-
© 2011 EnerWorks Inc.
Fig.4.10.1.2 – Punch out insert
and install connector nut
Fig.4.10.1.1 – Remove connection
cover plate
Fig.4.10.1.3 – Connect over-
temperature wire to tank wires.
4.10.1 Over-temperature control connection
Over-temperature control is a safety feature that prevents water in solar storage tank from boiling
and limits risk of scalding to the homeowner (this does not discount use of an approved
temperature and pressure [T&P] relief valve required by code).
Solar storage tank is typically a standard North American electric hot-water tank as Pre-Heat
Appliance makes use of tank’s factory installed thermostat. No power is hooked up to electric
heating elements of solar storage, but Energy Station Controller must be connected to lower tank
thermostat.
1. Uncoil cords at upper left of Energy Station. Black
cable with two black and one yellow and green wire is
over-temperature cable.
2. Unscrew and remove connection cover plate on top of
solar storage tank (
Fig.4.10.1.1
).
3. Punch out one round insert (if necessary) and install
¾” cable clamp
(Fig. 4.10.1.2).
4. Insert over-temperature wire through connector nut.
Feed enough wire through to make wire connections.
Cut off excess and strip wire ends.
5. With Energy Station unplugged, insert over-
temperature wire through cable clamp. Feed enough
wire through to make wire connections. Cut off excess
and strip wire ends.
6. Connect ground (yellow and green wire) to green
ground screw inside connection cavity or to ground
screw of cover plate.
7. Using wire nuts (Marrettes, Marr connectors), connect
black over-temperature wires to red and black tank
wires (
Fig.4.10.1.3
).
8. Carefully stow wires and connections into cavity.
Reinstall cover plate to hide connections. Tighten
screws of cable clamp to firmly hold over-temperature
wire.
9. Remove upper cover plate from side of storage tank.
Remove insulation and/or plastic plate covering
element/thermostat. Disconnect all wires from
thermostat and heating element.
10. Use a wire-nut (Marrette, Marr connector) to connect
black wire descending from top of tank to black wire
descending to lower element/thermostat. Similarly,
connect red wire descending from top of tank to red wire