Cuenod C 280 B 517/8 Manual De Utilización página 37

Start-up
Description and settings
VGD gas valve
SKP70 regulator
The VGD valve associated with SKP70
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 C285 B 517/8
Gas P VGD 40.065 40.080
d
(screw R)
G20 20-40
d
(Screw D)
Burner C330 B 517/8
Gas P VGD 40.065 40.080
d
(Screw R)
40
d
(Screw D)
G20
d
(Screw R)
150
d
(Screw D)
Burners C380-430 B 517/8
Gas P VGD 40.065 40.080
d
(Screw R)
G20 150
d
(Screw D)
1 2
2 1,4
R ratio
2
indicator
1,4
1
2
1
2
11/2003 - Art. Nr. 13 013 506A
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 a
movable graduated disk.
· Provisionally set the pressure switch
at the minimum value shown on the
graduated disk.
D value
indicator
Gas valve
opening
indicator
EN
37