09/2005 - Art. Nr. 13 019 533A
8
Installation
Oil connection
Oil pressure regulation
Start-up
Oil connection
Hoses are used for connecting the
oil pipes and the valve system. The
hoses must be properly installed
(suspended if possible) to avoid kinking
and the risk of fracture. For the dimen-
sions of the supply and return pipes
from the valve system to the tank,
please consult the relevant technical
data sheets.
Mounting options
–
Direct single-pipe installation
–
Single pipe installation with vent
filter
–
Two-pipe installation
Filters
To protect the burner pump and the
hydraulic system, suitable filters must
be installed upstream of the burner.
Conversion from two-pipe to single-
pipe installation
The burners are delivered with the
pumps fitted for two-pipe installation.
Conversion
·
Remove the bypass plug from the
return line connection and close the
return line
R
with the screw supplied
with the burner.
Attaching the measuring
instruments
·
Suction line vacuum gauge to con-
nection
3
·
Oil pressure gauge to connection
4
Oil pressure regulation
The oil pressure is regulated by the
pressure regulator incorporated in the
pump. The correct setting is approx.
15–20 bar, depending on the burner
capacity.
The pressure regulator is actuated by
turning the screw
6
.
Vacuum test (suction line)
The maximum permissible vacuum is
0.4 bar. A higher vacuum will cause the
heating oil to vaporize and may cause
malfunctions.
Pump type for
EK4.160 L-ZA
R Return line connection
S Suction line connection
1
Solenoid valve, nozzle 2 (full load)
2
Connection, nozzle 2
3
Vacuum gauge connection
(suction line)
4
Pressure gauge connection
(oil pressure)
5
Screws for pump cover
6
Oil pressure regulator
7
Connection, nozzle 1
8
Connection, hydraulic air damper
drive
9
Solenoid valve, nozzle 1 (low load)
10 Pressure output
Start-up and ventilation
Switch on the burner for a short while
and check whether the sense of
rotation is correct. Loosen the oil pipe
union at the pressure output (
7
or
10
),
switch on the burner and run the burner
until bubble-free oil emerges. Then
reconnect the oil pipe.
Important!
The hydraulic system has been filled
with test oil at the factory. This may
cause ignition problems when starting
the burner for the first time.
Adjustment sequence
·
Start the burner
·
Adjust the oil pressure (15–20 bar)
·
Provisionally adjust low load
·
Switch over to full load
·
Finally adjust full load
·
Switch back to low load
·
Finally adjust low load
Pump type for
EK4.100 L-ZA
