Projecta DC20 Instruction Manual page 7

6. The Ignition terminal must be connected to a positive power source between 10V and 17V
for the DC20 to operate (19B&S or 0.64mm
This can be done in two ways:
a) Connect ignition terminal to the vehicle's ignition. The DC20 will operate only when the vehicle's
ignition is turned on. Fit a 3A fuse to the cable as close as possible to the vehicle's ignition.
b) For continuous operation connect the ignition terminal to the DC20 positive input terminal.
This can be done by connecting a short piece of wire fitted with ring terminals directly to the
ignition and DC20 positive input terminals.
Typical Wiring installation
2 cable is sufficient).
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