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Fuel supply
Air Top Evo 3900 / Air Top Evo 5500
68
7.4.1.
Connecting two pipes with a hose
The correct procedure for connecting fuel lines with hosing is shown in Fig-
ure 14.
Ensure that there are no leaks.
7.5.
Metering pump
The metering pump is a combined delivery, metering and shut-off system
and is subject to certain installation criteria (see Figures 9, 15 and 16).
7.5.1.
Installation location
The metering pump must be installed in a cool place as close as possible to
the tank (see Figure 9). The maximum ambient temperature must not ex-
ceed +20 °C for petrol heaters at any time during operation.
The metering pump and fuel lines must not be installed within range of the
radiated heat from hot vehicle parts. A heat shield must be used if neces-
sary.
Fig. 14
Pipe / hose connection
Clip
Bubble
Correct
Wrong
Bubble
Fig. 15
Metering pump DP 2 with damper
Installation position
Fig. 16
Metering pump DP 30.2
Installation position
Air Top Evo 3900 / Air Top Evo 5500 12 Volt - petrol
Preferably
15° - 90°
Installation posi-
tion of damper
Metering
pump
Air Top Evo 3900 / Air Top Evo 5500
12 Volt and 24 Volt - diesel
Installation
position of
damper
Horizontal installation
Installation_Instructions_Air_Top_Evo_3900_5500_de_en_nl.book Page 68 Wednesday, November 3, 2010 11:58 AM