Qnergy PowerGen 5650 Series, Installation & Operation Manual, Page: 88 / 194

C
OMMISSIONING
P
ROCEDURE
76
12.5 HELIUM FILL
This procedure fills the Free-Piston Stirling Engine with helium. It uses a fill kit
(5000-103913-000) which is shown in Figure 12-4 on 74.
WARNING: High Pressure Gas Vessel!
Before performing the helium fill:
-Make sure the tank and vent valves are closed.
-Fully open the regulator to its lowest pressure
setting.
-Make sure the tank is firmly secured.
-If the helium fill line was removed during storage,
reattach it securely.
-At no circumstance shall the engine be charged
above 60bar.
-Wear safety glasses during engine helium fill
procedure.
-Use only >99.99% purity helium (UN1046 or
greater).
WARNING: Qnergy Engines use helium gas under
high pressure. Never hammer, weld, or drill on any
part of the engine.
Never transport the engine while filled with
greater than 2 bar (30 PSI) of helium.
Vent helium completely before disposal.
Contact Qnergy Customer Support to request
QB80 engine decommissioning procedure
document.
CAUTION: The helium fill must be performed by a
suitably qualified technician with local regulations.
Perform this procedure only when the system is
disabled and the engine is at ambient
temperature.