EnerWorks Solar Water Heating Appliance
© 2011 EnerWorks Inc. - Page
35
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Energy Kinetics Inc. / Installation
Manual
installer at risk of scalding. Boiling will also damage heat transfer fluid and void
warranty.
1. Supply line from charge pump should be connected to forward-facing male quick connect on
lower manifold. Return line from Appliance to fluid reservoir should be connected to left
pointing quick connect of lower manifold.
Clamping or fixing return line to reservoir is recommended as fluid flowing through
return line is hot and under pressure and may cause hose end to thrash about and
spray fluid – WEAR YOUR SAFETY GLASSES.
2. Ensure pump suction hose is in heat transfer fluid reservoir, below fluid surface. Sufficient
fluid must be in reservoir to maintain fluid level above inlet such that air does not enter
Appliance
(
Fig.5.3.1
).
3. Open ball valves on supply and return assemblies. Plug charge pump into a power bar with
switch – it is much easier to start and stop charge pump by using a switch. Switch on charge
pump to circulate fluid and remove air from appliance.
4. With charge pump operating, observe clear line returning fluid to reservoir. Air bubbles will be
visible passing through return line. It takes a few minutes for fluid to circulate through entire
appliance. Wait until no air is visible in the line before proceeding to next step.
Fluid speed through Appliance is only a few feet per second (<1 m/s). Depending
on length of line-set and on number of collectors, it will take a few minutes for fluid
and entrained air to move through entire Appliance and out to reservoir. Always
allow sufficient time for air to pass through and exit Appliance.
If fluid is immediately discharge ensure Energy Station pump is not turning, short
circuiting the collector loop.
Fig.5.3.1 – Charging Kit and fluid reservoir
Return-line
(from Appliance)
Return assembly
quick connect and ball
valve
Charge pump
Reservoir with heat
transfer fluid
Supply-line
(from reservoir to pump
and Appliance)
Supply-assembly
quick connect,
Schrader valve and
ball valve