Webasto Thermo Top Z Shop Manual page 37

Thermo Top E and Z/C
combustion air must be taken in from and the exhaust
vented to the exterior. The line feedthroughs must be
sealed against splash water.
8.6.3 Air Intake Muffler
The permitted installation position of the air intake muffler
is between 0° and 90° pointing downwards.
Fig. 807 Air Intake Muffler, Installation Position
8.6.3.1 General Remarks for Installation
Plug air intake hose with its slotted end (approx. 18 mm)
onto air intake connecting pipe of heater and fasten with
hose clamp.
Screw air intake muffler all the way into unslotted end of
combustion air intake hose (additional fastening with hose
clamp not required).
CAUTION
Ensure sufficient distance to exhaust system.
Dependent on installation area fasten air intake muffler
with retaining clip or with cable ties in suitable location.
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0-90° 0-90°
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8.6.4 Exhaust Line
The exhaust line (inner diameter 22 mm) may be routed
in several bends (total of 270°, smallest bending radius
50 mm). The minimum line length is 500 mm, the
maximum length is 1000 mm.
The exhaust muffler is to be mounted near the heater,
however at least 200 mm away from the heater.
The exhaust muffler must not be installed near the
combustion air intake.
Heater operation without exhaust muffler is not permitted.
Accumulations of condensate in the exhaust line must be
directly drained. A condensate drain hole (3 mm Ø ) may
be provided as required.
The exhaust line outlet must not point in the direction of
forward motion (Fig. 808)
Rigid pipes of unalloyed steel with a minimum wall
thickness of 1.0 mm or flexible hoses of alloyed steel only
may be used as exhaust ducts.
Fig. 808 Exhaust Pipe Outlet, Installation Position
8 Servicing
NOTE
Exhaust flow direction
nearly vertical 90° ± 10°
805