Chapter 1, INSTALLATION
16
☞
CHECKLIST
•
Check whether the heater has been connected to a
suitable socket.
•
Check that a suitable quantity of petroleum is in the
fuel tank.
•
Ensure that the fuel is free of water or other
contaminants.
•
Check that the fuel tank is in good working order –
it must be free of rust, corrosion and/or leaks.
•
Inspect the fuel pipe for signs of leaks, loose
connections, cracks, air bubbles or blockages.
•
Check that the fuel valves on the fuel tank and the
fire safety valve are open in order to allow the free
flow of fuel.
•
Check outside the building in order to ascertain that
there is no fuel or obstructions to the free
circulation of air in the area immediately adjacent
to the exhaust pipe.
•
Inspect the inlet air hose for cracks, loose
connections or blockages.
•
Check the outlet air hose for cracks, loose
connections or blockages.
•
Check the back of the heater to ensure that the
airflow to the air circulation ventilator is not
obstructed.
•
Inspect the interior of the building to ensure that
the area immediately adjacent to the heater is free
of fuel and objects that may obstruct the free flow
of air.
•
Check that the room sensor is not exposed to
draughts, direct sunlight or heat radiated directly
from the heater.
•
Use a spirit level to check that the heater is level.
If this inspection brings any faults to light, resolve these
problems before using the heater.
Use only water-free high quality pure
paraffin oil. Never use gasoline, LPG,
camping gas or other flammable liquids.
The use of these substances may cause
explosions or fire.
Available fuel supply options
The fuel supply of the Laser 73 can be set up as follows:
Large gravity-operated exterior tank
To install a large gravity-operated exterior tank, follow
the instructions below. We recommend that you call in
a recognised installer.
The inlet pressure to the heater may not exceed 2.5 psi.
Use a pressure reduction valve with a maximum thrust
of 2.5 psi ( ± 0.17 bar).
The installation height of the bottom of the fuel tank
must be 40 cm or more above the level of the floor on
which the heater is standing. This will ensure that there
is sufficient fuel inlet pressure. The distance between
the floor surface on which the heater is standing and
the top of the fuel tank may not exceed 2.5 metres.
This will prevent excessive fuel inlet pressures.
The pipe may not have any inverted U-bends (to pre-
vent air pockets that may block the fuel supply).
We recommend using a water-blocking filter in the fuel
pipe leading into the tank. A cut-off valve must be fit-
ted to the tank.
We recommend installing a fire safety valve and a fuel
filter in the fuel pipe.
The use of a cut-off valve, placed just before the pipe
enters the building, will limit the quantity of fuel to be
tapped off to a minimum if the heater requires mainte-
nance.
man_Laser73_uk.qxd 02-11-2006 10:44 Pagina 16
