Alde Compact 3020 Instructions D'utilisation page 10

Draining the hot water tank in the heating system using the combined safety/drain valve:
WARNING
SCALDING INJURY
VARNING
Never actuate the drain valve lever as long as the heating system is under water pressure and/or is still warm.
AVERTISSEMENT
WARNUNG
ADVARSEL
1. Switch off the fresh water pump. Consult your RV owner's manual to find the location of this control.
2. Open all water taps.
VAROITUS
3. Open the safety/drain valve by turning the lever (see figure 4). Check your RV owner's manual to find the location
ADVERTENCIA
of the safety/drain valve.
4. The hot water tank in the heating system will now drain directly below the vehicle through the safety/drain valve
AVVERTENZA
hose. Check that all the water is emptied out (about 2-3 gallons/7-10 liters). Leave the valve in the open position
WAARSCHUWING
until the next time the boiler is used.
NOTICE
Ensure that the automatic check valve
(see figure 5) is open and is allowing air to enter
the boiler when it is being drained and that the
hose is not blocked.
For emptying specially-adapted heating systems, as well as any other water systems in the vehicle, please refer to the
manufacturer's instructions.
Opening safety valve/drain valve
Closed
Figure 4. Safety/drain valve
10
Drain valve lever
Open
Automatic check valve
Figure 5. Check valve location