18
ENGLISH
Priming the pump
To prime the oil pump simply start up the burner and check
for a flame.
If the burner enters lockout before any fuel reaches it, wait at
least 20 seconds then turn the function selector to position (II)
"Reset burner" for at least 1 second before returning it to posi-
tion (I). Wait for the burner to complete the entire ignition cycle
again, up to the ignition of the flame.
(*)
m
ax
. 4
m
H
H
(*)
Automatic shut-off device (if fitted). For details of the
electrical connections, see the “Automatic shut-off de-
vice (DAI)” section on page 23.
b
If a confirmation solenoid valve is to be installed in the
light oil supply circuit to the burner, only a one-pipe sys-
tem can be set. Any two-pipe connection can compro-
mise the correct operation of the burner.
H (m)
L (m)
Øi (8mm)
Øi (10mm)
0
35
100
0,5
30
100
1
25
100
1,5
20
90
2
15
70
3
8
30
3,5
6
20
H
= Height difference
L
= Maximum length of suction hose
Øi
= Internal diameter of hose
1
Suction port
2
Return
3
By-pass screw
4
Pressure gauge fitting
5
Pressure adjuster screw
6
Vacuum gauge fitting
7
Solenoid valve
8
Auxiliary pressure measurement fitting
7
6 5
4
3
2
1
8
Discharge of combustion products
The flue pipe (1) and the connection to the stack (2) must be
made in conformity to the laws, standards and regulations ap-
plicable in the place of installation.
2
≥5°
1
3
b
The condensate drain system (3) must conform to nation-
al and local legislation and standards.
b
The stack fitting is equipped with a seal (A). Do not use
pipes with riveted overlaps to construct the flue.
A
Øi 80
175
65
ACQUAHOME R BLU
boilers derive their comburent air from
the room in which they are installed. Suitable air vents must
therefore be provided in compliance with applicable laws and
standards.
a
Do not obstruct or restrict the air vents in the room where
the boiler is installed. Adequate ventilation is essential for
correct combustion and functioning.
