Pramotronik 4d 24 Instruktsiia -

: The exhaust pipe must lead outside the vehicle. A 10mm longitudinal slit should be made at the connection point for a tighter seal with the heater’s nozzle.

: The air intake pipe (max length 2m) must be directed away from the vehicle's direction of travel and pointed downward to prevent water ingress. If downward orientation is impossible, a 3mm drainage hole must be drilled at its lowest point. pramotronik 4d 24 instruktsiia

: The unit should be secured on an even surface (unevenness < 1mm) using the provided gasket. Always replace the gasket if the heater is reinstalled. Operating Instructions : The exhaust pipe must lead outside the vehicle