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Start up
- Adjusting burner output - Oil pressure regulation
!
Risk of air blast!
Continuously check CO, CO 2 and soot emissions when adjusting the output of
the burner. Optimise combustion values in the event of CO formation. CO must
not exceed 50 ppm.
Burner start
Before starting the burner, draw oil in until
the filter is completely filled.
Then start the burner by switching on the
boiler regulator. Open the bleed screw on
the oil filter to allow the oil line to bleed
fully during the preventilation phase. The
negative pressure must not fall below 0.4
bar. Close the bleed screw when the filter
is completely filled with oil and oil is
flowing out without bubbles.
SUNTEC
AS V 47 A
Y1
4
3
P
V
SUNTEC
SUNTEC
1
2
1
suction intake connection.
2
return connection.
3
pressure connection.
4
oil pressure gauge connection.
5
negative pressure gauge connection.
6
oil pressure regulator.
10
Solenoid valve electrical connection.
Y1
fuel-oil solenoid valve.
Operating check
Flame monitoring must be checked for
safety as part of initial commissioning and
also after servicing or if the system has
been out of operation for any significant
period of time.
- Starting attempt with flame monitor unlit:
the automatic combustion control unit
must switch to malfunction at the end of
the safety time
420010474600
Burner output adjustment
Use the pressure regulator to adjust the oil
pressure in accordance with the burner
output desired. Monitor the combustion
values continuously as you do so (CO,
CO 2 , soot test). Adjust the airflow
gradually if necessary.
DANFOSS
BFP 21 R3
10
Y1
5
6
6
- Start with flame monitor lit: the
automatic combustion control unit
must switch to malfunction after 10
seconds of preventilation
- Normal start-up: flame monitor goes out
when burner in operation; the automatic
combustion control unit must switch to
malfunction after the restart and end of
the safety time
10
3
P
4
P
-
+
5
V
1
2
Optimising combustion values
If the combustion values are not
satisfactory modify the position of the
combustion head. By doing this the burner
ignition conditions and the combustion
values change. Compensate for the
change in airflow if necessary by adjusting
the air flap position.
Note: observe the minimum required
flue gas temperature specified by the
boiler manufacturer and the
requirements demanded of flue gas
ducts for avoiding condensation.
Oil pressure regulation
The oil pressure, and therefore burner
output, is adjusted using oil pressure
regulator 6 in the pump.
Turn to
- right: to increase pressure
- left: to reduce pressure
Connect a pressure gauge at point 4 (with
R1/8" thread).
Checking negative pressure
The vacuum meter for checking negative
pressure must be connected to point 5,
R1/8". Maximum permissible negative
pressure is 0.4 bar. At higher negative
pressures, the fuel oil gasifies, which
causes scraping noises in the pump and
ultimately leads to pump damage.
Cleaning the pump filter
The filter is located under the pump
cover(SUNTEC) or in appropriate
cartridge(DANFOSS). To be able to clean
the filter, it is necessary to loosen the
screws and remove the cover first
(SUNTEC) or to unscrew the screw
(DANFOSS).
•
Check the pump cover seal and replace
the gasket if
necessary.
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EN
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