Webasto CARBONTECH Installation Instructions And Owner's Manual - page 12
Page 12 of 20
Functional Principle of CARBONTECH™ System:
Each heater pad is an electrical resistor. A seat heater kit contains two (2) heater pads: one (1)
for the cushion and one (1) for the bag.
To realize two (2) heating levels, the two (2) pads are connected serial for the “LOW” position
and parallel for the “HIGH” position. This gives a 25% rate for the “LOW” position and 100% for
the “HIGH” position.
To avoid overheating, each pad has its own thermostat, which interrupts the electrical circuit at
a temperature of 70°C.
The CARBONTECH™ product was designed by MWW Automotive; patented and manufactured
by ACTIVline, a recognized German seat heater supplier to the global OEM market, exclusively
for MWW Automotive.
The MWW Automotive CARBONTECH™ system is a derivative of the certified and proven OEM
system designed for the North American OEM/aftermarket applications. The system can be
installed in almost all type cars, trucks, SUV’s and commercial vehicles.