Evolution Engines 152GX - Manual (Page 7)

7
Ignition Unit Power Source
The Evolution 152GX ignition system was designed around a 3S 11.1-volt Li-Po battery pack. The system will operate from a minimum
of 9 volts to a maximum of 13 volts. In the event that the engine is in an inactive state for 90 seconds, the ignition unit goes into Fail-safe
and automatically turns off the ignition battery source. In order to power the ignition system back up, cycle the ignition power switch from Off
to On.
Warnings
Always do a range check with the engine running before the first flight. Use the ignition only in dry conditions. Use recommended number and type of cells for each ignition type. This
product is specified for RC engines only. Do not remove the resister cover if the ignition is on.
WARnInG: REvERSAL oF PoLES on WIRE To BATTERy WILL DESTRoy THE IGnITIon.
WARnInG: DAnGER oF ELECTRIC SHoCK (voLTAGE ovER 20,000v).
WARnInG: The manufacturer is not responsible for damages caused by not following the manual and/or use with anything other than RC engines.
WARnInG: Because of possible interference, ignition and accumulators should be placed at least 25 cm from the receiver.
CAUTIon: Use a standard servo with a current draw of less than 1.5A to operate the choke. Servos with a current draw greater than 1.5A, such as micro servos, digital servos and high-
torque servos, consume more current than the ignition system's circuitry is designed to provide. If the servo you've connected quivers or won't work at all, its current draw is probably
too high.
Ignition System Warning
The GX electronic ignition fires the spark plugs for 1 second to check
the condition of the battery prior to starting the engine. If the engine
is in the compression position (i.e., the piston is above the exhaust
port in either the up OR down part of the stroke), any compressed
fumes may ignite, causing the propeller to turn and possibly the
engine to start unintentionally.
To prevent this with the Evolution Gasoline GX Ignition System, the
Ignition Power Switch must be turned off; check to see that the
piston is in the bottom dead center (BDC) position.
Bottom Dead Center can be found by rotating the propeller through
the compression stroke. As you rotate the propeller you will feel it
tighten, then suddenly loosen. Once the turn becomes very easy you
have completed the compression stroke and are at BDC. Once you
are sure the piston is in this position, you may turn on the ignition
power switch and operate the system safely.
As always, it is important to use extreme caution when near or
working with engines, fuel and propellers. If you have any
questions or concerns, please contact the Horizon Support Team at
1-877-504-0233 or [email protected].