Atlantic Alfea Extensa A.I. - Other maintenance; Emptying the hydraulic unit; Distribution valve

13.1 Emptying the hydraulic unit
- Remove the front panel of the hydraulic unit.
- Open the drain plug,
- Check that the hydraulic unit's bleeder valve opens
automatically,
- Open the installation’s bleeder valve(s).
13.2 Distribution valve
If the installation is tted with a hot water tank.
Ensure the distribution valve is tted in the correct
direction.
Channel AB: Outlet to the hydraulic unit.
Channel A open: Return from DHW tank.
Channel B open: Return from the heating circuit.
13 Other maintenance
Installation manual "1872 - EN" - 83 -
Alféa Extensa A.I. Heat Pump