Technical data

The lines must be so arranged that any clogging due to
contamination is not to be expected.
CAUTION:
A fire hazard exists if the installation position of the ex-
haust pipe discharge opening differs from that shown in
Fig. 23.
To prevent any damage to the metering pump cable it is
not permissible to extend the combustion air supply pipe
by means of an exhaust pipe section.
Length of combustion air intake and exhaust pipes:
with silencer: max. 2.0 m
without silencer: max. 5.0 m
NOTE:
For exhaust pipes lengths of 2 m and more, insulated ex-
haust pipes are to be used (dew point not reached)
Inside diameter of pipes:
Combustion air pipe: 22 mm
Exhaust pipe (metal): 22 mm
Smallest bending radius: 50 mm
Total angle of all bends:
Combustion air pipe: max. 270°
Exhaust pipe: max. 270°
Electrical Connections
NOTE:
When using the combination or standard digital timer a
remote-control pushbutton may be provided near the bunk
for added convenience. The connection is to be performed
in accordance with wiring diagram 32, 33, 35 or 36.
The electrical connection is to be performed in accordance
with the automatic control wiring diagram (Fig. 31, 32, 33,
34, 35, 36 or 37).
Connection in Vehicles for the Transportation of Dan-
gerous Goods (ADR)
When installing the Air Top 2000 S heaters in vehicles
for the transport of hazardous materials, the requirements
laid down in ADR 002 and ADR 003 (Technical Guidelines
relating to the ordinance of transporting hazardous ma-
terials on the road) must be fulfilled in addition to those of
the StVZO. The electrical connection is to be performed in
accordance with wiring diagrams Fig. 34, 35 or 36.
On vehicles without auxiliary drives, electrical connection
is to be performed in accordance with automatic control cir-
cuit diagram Fig. 37.
NOTE:
Switch S4 must be so installed that in the event of a pump-
ing device being put into operation, a plus potential is ap-
plied across the corresponding input of the electronic con-
trol unit.
CAUTION:
If no voltage to ground is present at the control unit input
X11/2 upon start-up all ADR functions will be inoperative.
After the plus potential has been applied across the control
unit input X11/2 (auxiliary drive ON) a short after-run
period of 20 seconds takes place and subsequently the
control unit is in its “fault lock-out” state.
CAUTION:
In accordance with the Technical Guidelines relating to the
ordinance of transporting hazardous materials on the road,
Fig. 22: Avoid areas exposed to water, mud or snow
To ensure an angle of discharge of 90° 10°, it is re-
quired that the pipe clamp be attached no more than
150 mm, from the exhaust pipe end
direction of discharge approximately vertical 90° 10°
Fig. 23: Exhaust Pipe Discharge Opening
Installation Position
Air Top 2000 S
12