Auxiliary Heater Unit, Component Description - Mercedes-Benz OM 471 Introduction Into Service Manual

System components
GF83.70>W>4039H
MODEL 963, 964 with CODE (D6M) Cab hot water auxiliary heater
MODEL 963, 964 with CODE (D6N) Cab and engine hot water auxiliary heater
Location
Shown on auxiliary heater, code (D6N) Cab
and engine hot water auxiliary heater
A901 Auxiliary water heater unit
The heater (A901) is bolted on behind the
left entrance on the cab floor.
Task
The auxiliary water heater unit (A901) is
used for
preheating,
f
continuous heating,
f
stationary heating and
f
heat boosting.
f
Auxiliary heater, code (D6M) Cab hot water
auxiliary heater
1 Burner insert
2 Burner tube
3 Heat exchanger
A13 Truck auxiliary heater (ITH)
control unit
A901 Auxiliary water heater unit
A901 B1 Auxiliary heater exhaust
temperature sensor
A901 B2 Temperature sensor
A901 B3 Overheating protection
A901 E Glow plug
A901 M1 Combustion air blower
A Exhaust outlet
K Fuel inlet
KA Coolant outlet
KE Coolant inlet
V Combustion air inlet
128

Auxiliary heater unit, component description

– This printout will not be recorded by the update service. Status: 09 / 2011 –
20.7.11
W83.70>1434>06
W83.70>1457>06