Dometic RMT 7650 Service Instruction page 7

Components / Refrigerator
3.4 Wiring scheme (MES/AES)
Interior light 12 V/2 W
3.5 Operating priniciple
Function electronics (Power module)
The electronics regulates the controlling of the
function elements according to the selected ener-
gy source, e.g. power supply of the Burner Control
Device. The AES-electronics additionally regula-
tes the selection of the most convenient energy
source, according to the priority "230 V~/12 V-
/GAS", as well as the 230V~ under voltage control
(no under voltage control at 12V-Modus), as well
as the delay in switching to the gas mode during a
refuelling stop.
The function electronics also controls the tempe-
rature sensor and the lighting. The electronics is
protected against possible short circuit errors of
the Burner Control Device with a 500mA fuse.
BURNER
CONTROL
DEVICE
Temp. Sensor
GAS VALVE
POWER MODULE
230 V~
12 V-
12 V-
Ignition electrode
Ionisation electrode
Burner Control Device P810
The Burner Control Device controls the ignition of
the flame during the gas modus and supervises
the ignition (security-ignition ca. 30sec.). Flame re-
cognition and controlling is carried out via an io-
nization electrode in the burner chamber (flame
failure device). For security reasons, there is an
additional earth contact on the burner chassis,
which leads to the Burner Control Device The con-
trolling of the gas valve GV100 is also carried out
via the Burner Control Device.
Gasvalve GV100
The gas valve GV100 consists of two series-
connected valves (increase of security). The valve
locks itself at a pressure of > 1 bar.
7
3
DC-heating element
AC-heating element