29
0301 / 13 010 881C
Start up
Fuel oil pressure control
Checking for correct functioning
Oil pressure control
Oil pressure - and consequently burner
adjustment - is controlled from the pump
using the oil pressure regulator
6
.
Turning
–
clockwise to increase
–
anticlockwise to reduce pressure.
A pressure gauge with an R
1
/
8
”" thread
should be fitted to the pressure gauge
outlet
4
in order to allow the pressure to
be checked.
Checking the negative pressure
The vacuum gauge used for checking
negative pressure (and fitted with an
R
1
/
8
" thread) should be attached to
connection
5
. Maximum permitted
negative pressure is 0,4bar. Higher
negative pressure will cause the
heating oil to turn to gas, leading to
scraping noises in the pump.
Cleaning the pump filter
The filter is located under the pump
cover. Cleaning access to the filter is
gained by loosening the fixing bolts and
removing the cover.
Check the condition of the pump cover
gasket and replace if necessary.
1
Suction outlet
2
Return inlet
3
Delivery connection
4
Oil pressure gauge connection
5
Negative pressure gauge
connection
6
Oil pressure control
7
Note for single tube operation
10
Coil
Y1
Electromagnetic valve
4
10
3
Y1
6
5
7
1
2
EN
Checking for correct functioning
The flame-monitoring device should be
checked for safe and reliable functioning
before initial startup, during regular
servicing and after any extended
shutdown period.
–
Startup attempt with blacked-out flame
monitor: note that the automatic firing
unit must go into malfunction mode at
the end of the safety period.
–
Startup with exposed flame monitor:
note that the automatic firing unit must
go into malfunction mode once air has
been flowing for 10 seconds.
–
Normal startup - if burner is in
operation, black out flame monitor:
note that the automatic firing unit must
go into malfunction mode after repeat
startup and at the end of the safety
period.
Summary of Contents for EK01B.4 L
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