AIRTRONIC D2/D4 Espar
AIRTRONIC D2/D4 Espar
AIRTRONIC D2/D4 Espar
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17<br />
Schematic <strong>AIRTRONIC</strong> <strong>D2</strong> / <strong>AIRTRONIC</strong> <strong>D4</strong><br />
Wire color key<br />
for switches<br />
Designation<br />
red = power (+)<br />
yellow = switch<br />
brown = ground (-)<br />
grey = temperature sensor<br />
on thermostat<br />
*vehicle dimmer switch<br />
for light display on<br />
7-day timer<br />
grey/red = temperature setting<br />
blue = diagnostic<br />
from heater<br />
blue/white = diagnostic<br />
from heater<br />
brown/white = ground<br />
black = to vehicle ignition<br />
accessories for continuous<br />
operation of heater<br />
1.1 Blower Motor<br />
1.2 Glow Pin<br />
1.5 Overheat and Flame sensor<br />
2.1 Control Unit<br />
2.2 Fuel Metering Pump<br />
2.7 Main Fuse 12Volt - 20 amp / 24 volt - 10 amp<br />
3.1.11 Rheostat<br />
3.2.8 7 Day Timer<br />
3.5 Thermostat<br />
5.1 Battery<br />
6.1 Diagnostic Pigtail (for connection to Fault code retrieval device)
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