Unigas G258A, Manual Of Installation - Use - Maintenance

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PART II: INSTALLATION
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Mounting VD-R & PS-...
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 loca-
tions where vent limiters are accepted 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)
Actuator VD-V
M12 x 5 Pin
VD-R + PS