Technical data

Pos. Designation Remarks
A1 Heater Air Top 2000 S
A2 Electronic control unit
B1 Flame detector
B2 Temperature sensor
B3 Overheating protection
E Pencil-type glow plug
F2 Fuse 24V 10A/12V 15A flat fuse SAE J 1284
H1 LED green (in pos. S1)
H6 Lamp (min. 1.2W) operation indicator of pumping device
H7 LED red (in pos. P)
H8 Heating symbol in display (in pos. P) operation indicator, overheating indicator
H9 Lamps (in pos. P) display illumination
M Motor
P1 Combination timer (1531)
P2 Standard digital timer (1531)
S1 Control element setpoint generator switch
S2 Disconnecting switch 1 or 2 poles. Emergency Stop switch; electr. or pneum.
S3 Push-button switch instant heating button
S4 Switch on pumping device I
S5 Switch on pumping device II
X1-X5 Connector 2pole at pos. A2
X6 Connector 8pole at pos. A2
X7 Connector 4pole at pos. S1
X8 Connector 2pole
X9 Connector 2pole at pos. A2
X11 Connector 6pole at pos. A2
X12 Connector 1pole diagnostic link (K-lead)
X13 Connector 12pole at pos. P
Y1 Metering pump,
Y2 Solenoid valve for pumping device I
Y3 Solenoid valve for pumping device II
Legende for circuit diagrams:
Colour of cables
bl
br
ge
gn
gr
or
rt
sw
vi
ws
blue
brown
yellow
green
gray
orange
red
black
violet
white
Wire cross sections
< 7.5 m 7.5 - 15 m
0.75 mm
2
1.5 mm
2
1.0 mm
2
1.5 mm
2
1.5 mm
2
2.5 mm
2
2.5 mm
2
4.0 mm
2
4.0 mm
2
6.0 mm
2
➀ Positive voltage from terminal (15/75) to pin 10:
continuous operation in the instant heating mode as long as ignition is switched on
No positive voltage at pin 10:
variable heating times can be programmed (10 min up to 120 min),
basic setting: 120 min
➁ Connections X11/2 and X11/3 only for ADR function
Air Top 2000 S
22