PART II: INSTALLATION
24
Mounting VD-R & PS-...
Actuator VD-V
1. Gas pressure regulation is possible with VD-R and PS pressure sensor only.
WARNING!!!!. For US/CN installation, the output pressure must be monitoried
by min. and max. pressure switches set to +/- 20% of the setpoint.
2. Mounting on pipe. Sensor position: 5x DN according to MBE. Pipe fitting with
female thread size ¼, mount sensor with seal, observe torque.
3. The pressure sensor includes a vent limiter according to UL 353 and ANSI
Z21.18/CSA 6.3. No venting required in locations where vent limiters are accep-
ted by the jurisdiction.
4. Only PS pressure sensors specified by DUNGS are authorised to be connected
to the VD-R‘s M12 interface.
5. Only PS cables specified by DUNGS are authorised to be used to connect the PS
to the VD-R. Max. cable length 3 m.
Actuator VD-R
The actuator
VD-V
does not need any adjustment (funzione ON-OFF)
The actuator
VD-R
It must be combined with the
PS
sensor (include regolatore di
pressione)
The
PS sensor
chosen based on the necessary pressure (there are 3 models)
Fig. 18
