Qnergy PowerGen 5650 Series, Installation & Operation Manual

Page: 82 / 194

I
NSTALLATION
P
ROCEDURE
70
11.4 GAS CONNECTION
1. Connect to the fuel inlet, ½” NPT Male connection (see Figure 11-5 on 70).
Note: The PowerGen generates slight vertical vibration while in operation due to the
movement of the Stirling engine. If the use of flexible metal-sheathed pipe or flexible
expansion loop is not acceptable please contact Qnergy technical support to discuss other
options.
2. Use a flexible metal-sheathed hose (minimum 1’ flex hose) or 1/4” – 1/2” tubing with
expansion loop (taking into account the pressure drop to maintain minimum supply pressure)
to connect the PowerGen fuel inlet to the ½” NPT (male) threaded pipe. Be sure to use
appropriate pipe sealant during installation.
3. Use a leak indicator spray to check the gas connection for leakage.
Note: The complete gas installation, including any gas meter, must be inspected, checked for
leaks, and purged in accordance with local regulations.
Figure 11-5 Gas Connection Location
.
WARNING: Danger of death by escaping gas is
possible if the gas connection is not made
properly.All local regulations for fuel supply must
be observed. The gas connection should be made
by a certified qualified technician. The installer
must verify that the supplied gas is identical to the
gas specified on the data plate of the PowerGen.