elco VGL 06.1200 DP, Руководство пользователя, Страница: 45 / 52

45 06/2011 - Art. Nr. 13 018 118C
Bleeding the oil pump
•
At initial start-up, draw up oil with a
hand pump.
•
Switch on the boiler control system.
•
Unlock the control and safety unit.
•
During pre-ventilation, open the
bleed screw on the oil filter to
enable complete venting. Negative
pressure should not drop below 0.4
bar. Close the bleed screw once the
filter is completely full of oil and the
oil comes out free of bubbles.
Regulating the burner for oil
operation
•
Connect a micro-amperemeter
(0-500µA) instead of the measure-
ment bridge.
•
Fit a pressure gauge for pressure and
negative pressure measurements.
•
Check if the gas valves are closed .
•
Install a pressure gauge on the
distributor from 0 to 30 bar for
atomisation pressure.
•
On the pump:
– install a vacuum meter from 0 to 1 bar
(for 5 or 5.1 ) with direct suction,
– a pressure gauge from 0 to 6 bar
(for 5 or 5.1 ) ring conduit max. 2 bar.
•
Open the fuel valves.
•
Energise switches S1/H10.1 - S29
J
- S4 Oil - S2
K
- S7.1 .
•
Close the thermostat circuit.
•
Unlock the control and safety unit.
The burner works; during pre-ventilation:
•
Vent the pump by opening
a pressure measurement connection.
•
The burner starts in the 1st stage.
•
Set the combustion values at the
limit switch IV.
•
Set the oil pressure to pump pos. 6.
•
May have to be adjusted depending
on the start-up behaviour.
•
Activate switches S7.2 and S8.2. The
burner switches to the 2nd stage.
•
Set the combustion values at the
limit switch VI.
•
Activate switch S8.3.
•
The burner works in the 3rd stage.
•
Set the combustion values at the
limit switch I.
•
Set the required oil flow rate by
adjusting the oil pressure. If the oil
pressure is changed, stage 1 and 2
must be regulated again.
•
If dimension Y of the burner head
setting has to be changed, stage 1
and 2 must be regulated again.
•
Check the combustion values again
in the 1st and 2nd stage.
The pump pressure and dimension
Y can no longer be changed.
•
The switchover behaviour from stage
1 and 2 can be adjusted on limit
switch VII and from stage 2 to 3 on
limit switch VIII. Set the limit switch
so that a slight overlap is achieved
between the stages.
Comply with the exhaust gas tempera-
ture value recommended by the boiler
manufacturer in order to achieve the
required efficiency.
Oil and gas operation
•
The burner must be shut down
when changing to another fuel.
Then select the desired fuel with
rocker switch
S29/S2/S4 .
•
If the burner is switched to another
fuel while in operation, the burner
goes into fault mode and the control
and safety unit locks out. Unlock the
combustion control unit and select
the desired fuel with rocker switch
S29/S2/S4 .
•
Change of fuel by remote control
To change fuel by remote control via a
modem, check first that the burner
switches to low load and shuts down.
The circuit diagram contains a
switching proposal to this effect.
Start-up
Regulation for oil operation
Caption
1 Suction connection M16x1.5
2 Return connection M16x1.5
3 Diffuser output M14x1.5
4 Pressure gauge connection G1/8
5 Vacuum meter connection or
supply pressure (for vacuum
meter or pressure gauge)
G1/8
6 Oil pressure regulator
Setting the oil pressures
When delivered from the factory, the
pump pressure is set to 19 bar.
•
Turn screw 6 clockwise to increase
the pressure and anti-clockwise to
reduce the pressure.
With direct suction from the tank, the
maximum negative pressure is 0.4 bar.
With an oil supply, the maximum
pressure is limited to 2 bar.
AJ6 CC1004 3P
EN