6
D
S
GB
F
Technical data specified have to be complied with in so
far as this can be influenced and the minimum /
maximum values may not be exceeded or fallen short
of as this may lead to malfunctions of the
AIRTRONIC
and / or of the heating operation and/or to damage to
components relevant to the heating.
Noise emission inside the vehicle
The highest sound pressure level is < 56 dB (A),
measured in the operating setting “Fast”, inconformity
with 3. GSGV and DIN 45 635 – Part 1.
Technical data
Heater AIRTRONIC D2 AIRTRONIC D4 / D4S
Heating medium Air
Heat flow settings Step Step
Power Fast Medium Slow Power Fast Medium Slow
Heat flow (watt) D2 / D4 2200 1800 1200 850 4000 3000 2000 1000
D4S 3500 3000 2000 1000
Hot-air throughput D2 / D4 105 87 60 42 185 150 110 65
without counterpressure (kg/h) D4S 160 140 100 60
Device guide number D2 / D4 16 at outflow hood Ø 60 mm 13 at outflow hood Ø 75 mm
12 at outflow hood Ø 75 mm 10 at outflow hood Ø 90 mm
D4S 10 at outflow hood Ø 75 mm
Fuel consumption (l/h) D2 / D4 0.28 0.23 0.15 0.10 0.51 0.38 0.25 0.13
D4S 0.44 0.38 0.25 0.13
Electrical input (watt)
During operation D2 / D4 34 23 12 8 40 24 13 7
(12 V and 24 V) D4S 40 30 16 8
When starting (12 V and 24 V) 100 100
During control pause "OFF" 4 to 5 4 to 5
Rated voltage 12 V or 24 V
Operating range
Lower voltage limit 10.5 V and 21 V
An under-voltage protecting device
in the controller turns off the heater
Response time – under-voltage protection: 20 seconds
at approx. 10.5 V and 21 V
Upper voltage limit 1
6 V and 32 V
An over-voltage protecting device
in the controller turns off the heater
Response time – over-voltage protection: 20 seconds
at approx. 16 V and 32 V
Fuel Commercial diesel fuel
For "Fuel quality" and "Fuel at low (DIN EN 590)
temperatures", see Operating Instructions
page 19
Permissible ambient temperature Operation –40 °C to +70 °C
Storage –40 °C to +85 °C
Maximum air-intake temperature +40 °C
Degree of radio interference suppression 3 for UKW, 4 for KW, 5 for MW / LW
Weight approx. 2.7 kg approx. 4.5 kg
All technical data ± 10 %
<_<_
ATTENTION !
