02/2016 - Art. Nr. 4200 1046 8202A
15
en
Commissioning
Fuel oil pressure regulation
Air regulation
1
Return connection
G1/4
2
Vacuum connection
G1/4
3
Nozzle supply line connection G1/8
4
Pressure gauge connector
5
Vacuum gauge connector
8
1st stage pressure setting
9
2nd stage pressure setting
Y1
Solenoid valve, 1st stage
Y5
Solenoid valve, 2nd stage
Setting the fuel oil pressure
The fuel oil pressure is adjusted using
fuel oil pressure regulator
8
for the 1st
stage and fuel oil pressure regulator
9
for the 2nd stage. To check the
pressure, connect a R1/8" pressure
gauge to connector
4
.
Turn:
- to the right to increase the pressure
- to the left to reduce the pressure
Checking the vacuum pressure
To check the negative pressure, the
vacuum meter must be connected to
point
5
, R1/8". Maximum permissible
vacuum pressure is 0.4 bar. At higher
vacuum pressures, the fuel oil gasifies,
which causes scraping noises in the
pump and risks damaging it.
Air regulation
The combustion air regulation is carried
out on the control unit by setting the ven-
tilation speed.
Air pressure switch adjustment
• Remove the transparent cover.
• Provisionally set to 1 mbar.
