EnerWorks Solar Water Heating Appliance
© 2011 EnerWorks Inc. - Page
33
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Energy Kinetics Inc. / Installation
Manual
5 – Charging Appliance
5.1 Leak testing with air
Expansion tank air pressure must be 25 psi before leak testing and Appliance
charging. (Section 4.2, Step 9) If expansion tank air pressure is too low,
pressurizing heat transfer fluid loop could damage or rip expansion tank
diaphragm. Damage to diaphragm due to low expansion tank air pressure is not
covered by warranty.
1. Connect fluid line out from charge pump to forward-facing male quick connect, located below
Energy Station pump on lower manifold (
Fig.5.1.1
). Supply connection assembly includes
female hydraulic quick connect coupling, ball valve and Schrader air valve.
2. Connect return line (that will return fluid from
appliance to reservoir) to left pointing male
quick connect (when facing Energy Station) on
lower manifold (
Fig.5.1.1
). Return connection
assembly includes female hydraulic quick
connect coupling and ball valve.
3. Close ball valves. Connect a compressor or
bicycle pump to the supply connection
assembly Schrader valve and pressurize heat
transfer fluid loop with air to 40 psi (pressure
gauge installed on upper manifold) (
Fig.5.1.2
).
4. Let stand for 30 minutes.
Leak test must not be rushed. Take this time to prepare the heat transfer fluid, to
educate homeowner on Appliance operation, to complete
Product & Installation
Registration Form
, and/or to begin clean up.
Return assembly includes
female quick connect
coupling and ball valve
Supply-assembly includes
female quick connect
coupling, ball valve and
Schrader valve
for leak-testing
Fig.5.1.2 – Leak-test: pressurize appliance to 40
psi and wait 30 minutes.
Fig.5.1.1 – Charge Kit supply and return assemblies.