Translations:KAVAN FS400AR - Instruction manual/22/en

Glow Plug Ignition

For best performance, use an onboard battery to ignite the glow plugs when the throttle is set at half throttle or less. The onboard glow will ensure that all glow plugs stay „hot“ even when the engine RPM slows.

The FS 400AR includes 10 (5 for spare use) spring loaded connectors for connecting the glow plugs to the battery. These special connecting heads will snap onto the head of the glow plug to ensure firm contact.
Once the connectors are secure to the glow plugs, join the 5 glow plug leads together. If the connecting wires need to be extended once they have been joined, use an AWG16 or larger wire to employ a single lead.
The glow plug wires should be connected to the positive battery terminal when in use.
The Ground Wire can be connected to the motor mount, and will connect to the negative battery terminal.
A 15 amps or larger capacity switch should be wired into the negative lead to turn the system on and off during transport and priming procedures. The switch should be easily accessible on the outside of the aircraft.
A second 15 amps or larger switch should be wired into the same line as well and linked to the throttle servo to turn on when the throttle is set below + throttle. (Or you can use a suitable electronich glow heating device available in model hobby shops.)
The battery source should be above 1.2 volts, and no more than 1.5 volts, and needs to have a capacity of 6-10 Ah. The use of a small lead acid battery or 4 -5 (wired in parallel) sub-C batteries has shown to work perfectly and should easily be carried by your aircraft.
As an option, you may want to have a separate power source to use during starting procedures. The use of a separate battery will extend the time between charges of the on-board battery.
Remember, if using an external battery, the onboard battery should be off. See Glow Plug Battery Section Below.