Supply Voltage Connection; Control Element (Rheostat) - Webasto Air Top 2000 ST Installation Manual

Electrical Connections
8.3

Supply Voltage Connection

To provide the heater with adequate protection, an additional
flat fuse holder is to be installed (supplied with the heater).
Ideally from the vessel's central electrical system or at the
batteries.
A weather sealed fuse holder is to be fitted to protect the
heater (supplied with the heater harness).
8.3.1 Fuse Specifications
Air Top EVO 40/55: F = 20 A (12v); F = 15A (24V)
Air Top 2000 ST: F = 15 A (12v); F = 10A (24V)
IMPORTANT!
All power connections must be fused within 14" of the
battery.
IMPORTANT!
The Air Top EVO 40/55 requires 6.25 amps @ 12 volts or 12.5 amps @ 24 volts during start-up. The
main power connection has to be made at a circuit designed to sustain this load without voltage
drop. Cigar lighter sockets and auxiliary power outputs for C.B. radio's and other electronic
accessories are not considered adequate power supplies for the Air Top EVO 40/55.
The fuse holder may only be installed in an interior space protected from splash water or damage. Mount
the fuse holder in an upright position, see Figure 27 for installation position variance. Secure the fuse holder
mounting plate to a flat surface and clip the fuse holder into the mounting plate.
Figure 27. Fuse Holder, Installation Position
8.4

Control Element (Rheostat)

Shaft requires a 12 mm (15/32 in.)
hole to mount.
Figure 28. Control Element (rheostat)
Webasto Thermo & Comfort N.A., Inc.
Air Top 2000 ST - Air Top Evo 40/55
Figure 26. Fuse holder - weather sealed
The wiring harness is prepared for connection to
the control element.
Simply pull on the connector housing to unplug the
connector.
The connector housing can be locked (self-locking
action) by simply pulling on the wiring harness.
Locate the control element in a convenient
location.
The control element is not affected by
temperature.
Temperature is monitored inside the heater or via
an optional external temperature sensor (see Figure
31).
32
F = 20A (12V)
F = 15A (24V)
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