Volcano VR Mini Technical Documentation Manual page 215

The device will be vented when you loosen the vent bolt 1 placed on the connection pipe. The heating medium is drained through the drain plug 2, placed on the bottom connection pipe.
When starting the device after the heating agent has been drained, remember to vent the heater.
Elektrischer Anschluss
VOLCANO VR Mini, VR1, VR2, VR3, VR-D/
AC
VOLCANO VR Mini, VR1, VR2, VR3, VR-D/
EC
1
2
5 x 1,5 mm 2
2
VOLCANO VR Mini, VR1, VR2, VR3, VR-D/
215
1
DE