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4.1. Description
The heating unit is equipped with a single-stage oil burner, bearing
the CE mark, and complying with EC product Directives.
4.2. Installing the burner on the heating unit
The burner is mounted on the heating unit by means of its own
aluminum flange, and held in position by a projecting screw and
nut. In order to remove the burner, unscrew the nut A and remove
the burner ( see pic. 10).
4.3. Hydraulic system
The burner pump can generate a maximum depression of 0.4 bar.
Vapors are produced when this value is exceeded. The oil pipes
must be perfectly airtight, in order to prevent air intake.
It is mandatory to install a filter on the fuel oil supply pipe.
The burner pump is designed to operate in a twin-pipe system. In
order to supply via a single pipe, unscrew cap 2 and remove the
grub screw 3. Afterwards, re-install cap 2 (pic. 11).
WARNING
In twin-pipe systems, before starting up the burner, make sure
the return pipe is not clogged: an excessive back pressure
might damage the pump.
Pic.12 shows gravity, single pipe, fuel oil supply system
4. OIL BURNER
pic. 10
pic. 11
1 – Fuel Oil inlet
2 – Fuel Oil return
3 – By-pass grub screw
4 – Pressure gauge port
5 – Pressure regulator
6 – Vacuum-meter port
7 – Solenoid valve
8 – Auxiliary pressure
gauge port
pic. 12
Di = Inside diameter of pipe
L = Max. length of oil intake pipe
H = level difference
Pipe L
(m)
H
(m)
Pipe
8 mm
Pipe
10 mm
0,5
10
20
1
20
40
1,5
40
80
2
60
100
A
H
max 4 m
min 0.1 m
