PART II: INSTALLATION
15
Siemens VGD valves with SKP actuator
:
The pressure adjusting range, upstream the gas valves group, changes according to the spring provided with the valve group.
3.3 Gas Filter (if provided)
The gas filters remove the dust particles that are present in the gas, and prevent the elements at risk (e.g.: burner valves, counters and
regulators) from becoming rapidly blocked. The filter is normally installed upstream from all the control and on-off devices.
Once the gas train in installed, execute the electrical connections for all its items (gas valves group, gas proving system, pressure
switches).
Performance range (mbar)
0 - 22
15 - 120
100 - 250
Spring colour
neutral
yellow
red
ATTENTION: it is reccomended to install the filter with gas flow parallel to the floor in order to prevent dust fall
on the safety valve during maintenance operation.
2
(cap)
1
(spring)
Fig. 10
Summary of Contents for Low NOx Series
Page 33: ...PART IV MAINTENANCE 33 ...
Page 35: ......