Chapter 1, INSTALLATION
89
If a fuel pipe inside the building is more than 90 cm
long, you must use an extra cut-off valve.
The external fuel tank must be placed at least 2 metres
away from any heat source.
The external fuel tank must have a filling opening on
the top and a ventilation opening with a weather-
resistant cap on the side. Some tanks use the same
opening for ventilation and filling.
Important: Ensure that the fuel pipe is free of dust and
waste particles. These particles may cause problems in
the fuel receptacle.
Copper tubing with an exterior diameter of 3/8” must
be used for the fuel pipe.
The installation of the external tank must meet fire
safety regulation NFPA31 and/or applicable local regu-
lations. Refer to the local authorities for these regula-
tions.
Fig.1-11 Connection to the fuel pipe
Laser 56
Fire safety valve
(recommended)
Fuel drainage
container with
unlocking button
Valve (recommended)
2.5 m (max.)
40 cm (min.)
Fuel tank placed
outside
Fuel filter: Preferred type
– water intake cut-off
valve
Valve
Loop
Copper tube with
3/8 exterior
diameter
