PART III: OPERATION
32
Gas valveversion with SKP2 (built-in pressure stabilizer)
To increase or decrease gas pressure, and therefore gas flow rate, remove the cap
T
and use
a screwdriver to adjust the regulating screw
VR
. Turn clockwise to increase the flow rate,
counterclockwise to reduce it.
Adjusting the gas valves group
Multibloc MB-DLE
The multibloc unit is a compact unit consisting of two valves, gas pressure switch, pres-
sure stabilizer and gas filter.
The valve is adjusted by means of the
RP
regulator after slackening the locking screw
VB
by a number of turns. By unscrewing the regulator
RP
the valve opens, screwing the valve
closes. To set the fast opening remove cover
T
, reverse it upside down and use it as a tool
to rotate screw
VR
. Clockwise rotation reduces start flow rate, anticlockwise rotation incre-
ases it.
Do not use a screwdriver on the screw
VR
!
The pressure stabilizer is adjusted by operating the screw
VS
located under the cover
C
.
By screwing down the pressure is increased and by unscrewing it is reduced.
Note: the screw
VSB
must be removed only in case of replacemente of the coil.
Fig. 8
Fig. 9
Key
1 Electrical connection for valves
2 Operation display (optional)
3 Pressure governor closing tap
4 Start setting cap
5 Hydraulic brake and rate regulator
6 Coil
7 Test point connection G 1/8
8 Test point connection G 1/8 downstream of valve 1, on both sides
9 Output flange
10 Test point connection M4 downstream of valve 2
11 Gas flow direction
12 Test connection G 1/8 downstream of valve 1, on both sides
13 Vent nozzle pressure regulator
14 Filter (below cover)
15 Input flange
17 Pressure switch
18 Pressure switch electric connection
C
VS T(VR)
RP
VB
VSB
Fig. 7
T
VR
+
-
