Webasto thermotop C Installation Instructions Manual page 13

FUEL CONNECTION
(Continued)
The suction hose length, (Fuel Tank to Fuel Pump)
including the pick up pipe length, (if applicable)
should be no longer than 1.20m, use the 1.2m
copper pipe supplied.
The maximum height of the Heater above the Fuel
Pump should be no more than 3.0m.
The Fuel Pump Must NOT be mounted above the
heater or any exhaust pipe.
≤ 1.20m
Tank
Fuel System - Pipe Maximum Lengths
All fuel lines must be correctly installed and securely
mounted and protected against heat, impact and
abrasion damage.
Fuel Pump mounting orientation is critical to correct
performance. Mount horizontally using anti vibration
clip with electrical connector inlet orientated
downwards as shown in drawing below. Do not
mount close to heat sources, (engines or exhausts).
Ensure pump is mounted to avoid mechanical
damage. The pump must not be mounted more
than 3m below the heater. Refer to the drawing
below for the correct heights etc.
Fuel System - component heights
Webasto Part Number : 4110310A
Issue No: 02 : 10th November 2010
Matthew Millard
Visit www.butlertechnik.com for more technical information and downloads.
≤ 8.80m
Heater
In the interests of continued development, we reserve the right to change
specifications without prior notice
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Direction of Fuel Flow
Fuel Pump Orientation
Ensure the fuel lines are installed securely with rubber
lined P-Clips and routed in such a way that they will not
suffer from mechanical damage.
Do not install the fuel lines adjacent to any heat source.
Do not clip the fuel lines to any exhaust system. Do not
clip any wiring harness or cable to the fuel lines. When
route the pipes try to avoid forming tight angles in the
copper pipe. All bends must be gentle and sweeping
with a large radii.
Ensure the fuel lines are installed securely with rubber
lined P-Clips and routed in such a way that they will not
suffer from mechanical damage.
Do not install the fuel lines adjacent to any heat source.
Do not clip the fuel lines to any exhaust system. Do not
clip any wiring harness or cable to the fuel lines. When
route the pipes try to avoid forming tight angles in the
copper pipe. All bends must be gentle and sweeping
with a large radii.
When fitting the optional fuel filter (Sub-kit 4110766A).
mount the fuel filter in between the standpipe & fuel
pump. Observe correct orientation as shown below! The
mounting bracket should be installed as shown below
with the bracket holes sitting on top of the hose tail flats.
When fitting the hose tails to the filter body DO NOT use
PTFE tape! Use a liquid sealant e.g. Loctite 572
Fuel IN
from Tank
Marine Comfort
Fuel OUT
to Heater
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