Iveco Stralis AT/AD. Manual — part 319
74239
74248
1
20
21
40
III.60
ELECTRONIC SYSTEMS
S
TRALIS
AT/AD
Base - January 2003
Pin
Cable
Function
1
-
-
2
7550
Positive direct from the battery
3
-
-
4
2296
K
line
for diagnosi
s
5
Ws/Bi
CAN - H (BCB)
line
6
9993
Outgoing positive compressor electromagnetic clutch signal
7
7568
Mixer reduction gear motor power supply
8
7566
Recirculation reduction gear motor power supply
9
0562
Floor reduction gear motor power supply
10
7564
Windshield defrost reduction gear motor power supply
11
-
-
12
0550
Sensor and reduction gear motor mass
13
7572
Evaporator temperature reference signal
14
7574
Sun ray sensor signal
15
7565
Recirculation potentiometer reference voltage
16
7561
Floor potentiometer reference voltage
17
-
-
18
2290
Internal temperature sensor motor signal
19
-
-
20
7555
Outgoing positive blower control module signal
21
0000
Negative direct from the battery
22
9552
Outgoing negative electro valve signal
23
-
-
24
-
-
25
Gn/Ve
CAN - L (BCB)
line
26
0568
Mixer reduction gear motor power supply
27
7569
Internal temperature sensor motor power supply
28
0566
Recirculation reduction gear motor power supply
29
-
-
30
0564
Windshield defrost reduction gear motor power supply
31
7562
Floor reduction gear motor power supply
32
7575
Internal temperature sensor signal
33
7571
Blow air temperature reference signal
34
7567
Recirculation potentiometer reference voltage
35
7563
Windshield defrost potentiometer reference voltage
36
7560
5-Volt Mix / Floor / Rec / Defrost potentiometer signal
37
÷ 40
-
-
73668 C
5
4
ELECTRONIC SYSTEMS
III.61
S
TRALIS
AT/AD
MANUAL AIR CONDITIONER
Manual version
In the manual version the refrigerating circuit and heater checks occur by means of a device with leverages and knobs
placed in the lower part of the central dashboard.
The system is checked by an electronic unit but by means of knob controls used for the following functions:
1.
Heating water cock control
2.
Internal fans speed
3.
Air flows distribution
4.
Compressor control switch
5.
Recirculation function switch
CONTROLS DESCRIPTION
WATER COCK CONTROL
The knob rotation adjusts water cock position and consequently the amount circulating inside the cabin radiator.
If supplementary WATER heater is present, this knob controls three microswitches used for the following functions:
20%
supplementary heater water pump activation
60%
top flap closing motor activation (TOP FLAP)
80%
supplementary heater connection
If supplementary AIR heater is present, this knob controls two microswitches used for the following functions:
60%
top flap closing motor activation (TOP FLAP)
85%
supplementary heater connection
NOTE The motor for TOP FLAP function is present only in manual version, since in automatic version this function
is performed through a bowden cable connected to air mixing motor (MIX).
-
Maximum heating = TOP FLAP closed
-
Maximum cooling = TOP FLAP open
INTERNAL FAN SPEED
This knob is composed of a multiple switch that controls three adjusting resistances for different motor speeds.
AIR FLOWS DISTRIBUTIONS
This control through bowden cables allows distributing the air flows in the desired cabin areas.
RECIRCULATION FUNCTION SWITCH
This button allows, through a specific motor, closing the external door with a percentage of 95% of internal air and 5%
of external air.
The motor has no position sensors since it works only under the two all-closed or all-opened conditions.
On the button there is a yellow-coloured led that signals its connection.
There is no time limit for this function.
III.62
ELECTRONIC SYSTEMS
S
TRALIS
AT/AD
Base - January 2003
This button allows connecting the air conditioner compressor.
The cluth closure is constrained by safety system pressure switches and by fixed-calibration evaporator thermostat
Such thermostat, of the mechanical type, adjusts the temperature inside the evaporator in order to disconnect the com-
pressor clutch upon reacihing ~ 2 _C and reconnect it at ~ 5.5 _C
The compressor operation is constrained by the manual connection of at least one fan speed.
A yellow-amber-coloured led is present on the button and signals the compressor connection.
42045. External temperature sensor - 82000. Windscreen defroster assembly - 84009. Internal temperature sensor - 42608.
Cooling fluid safety pressure switches - 25332. Compressor connection remote control switch - 84019. Compressor
60%
18
22
2,5
25
ELECTRONIC SYSTEMS
III.63
S
TRALIS
AT/AD
Block diagram
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