Ideal für:
Circulation heating system Mod. 311
- with thermostat in the return
- 1 piece 400 V / 3 kW heating element
- High-performance circulation pump (400 W)
- non-return valve
- Non-return valve
- Pressure relief valve
- Automatic air vent and main switch
- Mounted on base plate ready for connection
- 2 30 mA RCDs required on site
- Water connections 3/4" or 1"
- Cable length: max. 250 m
- Max. height difference (flow-return) 7 m