Supply/return unit for heating/cooling, ready for the installation of a DN15 or DN20 energy meter.

Composition
- DN 20 2-way zone valve motorised by a servomotor powered at 230 Vac, 50 Hz
- DN 20 impurity filter
- No. 4 DN 20 ball valves with pipe union

The unit is completed by 2 aluminium cross-pieces and 4 plastic supports used to fix the unit to the vertical guides supplied with the cabinet.

3/4"F main connections, valve connection thread as per UNI EN 10226-2.