Cuenod C 120 Instrucciones De Montaje página 38

Start-up
Description and settings
VGD gas valve
SKP75 regulator
The VGD valve associated with SKP75
regulator ensures a constant gas
flow/air flow ratio and is quick-acting.
The regulator also takes into account
combustion chamber pF pressure.
The valve is delivered preset according
to table here below.
Burner C 120 B 517/8
Gas :
VGD 20.507 40.065 40.080
pressure(s)
d
2
(Vis R)
G20:20,25
d
1,4
(Vis D)
Burner C 160/210 B 517/8
d
2
(Vis R)
G20:
20,25,40
d
1,4
(Vis D)
38
R ratio
indicator
1,3
1
2 0
1,3 1,3
05/2006 - Art. Nr. 13 013 500B
1 Pressure switch electrical
connection (DIN 43650)
2 Solenoid electrical connection
(DIN 43650)
3 Pressure switch
4 Intake flange
5 Pressure take-off G 1/8 before the
filter
6 External filter DN65
7 Identification plate
8 Air pressure pL G 1/8 connection
9 Adjusting screw R of gas flow/air
flow ratio
12 Adjusting screw D for correcting
zero point
13 Connection G 1/8 for combustion
chamber pressure pF
14 Connection G 1/8 for gas
pressure pBr
15 Outlet flange
16 pBr - pL - pF pressure take-off
pipes
Setting gas pressure switch
· Remove transparent cover.
Unit includes a ­ | ¯ index and
graduated mobile disk.
· Provisionally set pressure switch to
the minimum value shown on
graduated disk.
D value
indicator
Gas valve
openig
indicator