HTP
HTP
HTP
HTP
12
12
12
12
5
55
5
MAINTENANCE
MAINTENANCE
MAINTENANCE
MAINTENANCE
To maintain the Domestic Water Storage tank assembly in perfect working order, a yearly service
should be performed on both devices by DOMUSA
DOMUSA
DOMUSA
DOMUSA's
's
's
's authorised personnel. In particular, we
recommended for the storage tank:
−
Once a year, perform a thorough cleaning of the inside of the DHW tank. Before emptying the
hot water storage tank, drain the primary circuit.
−
If the storage tank features electronic cathodic protection, its correct operation must be
inspected once a year.
−
The installation pressure should be kept at 1 - 1.5 bar.
−
Ensure the correct functioning of the safety valve and the drain valve.
−
If the system has been idle for a long period of time, ensure that the storage tank loading
pump works properly. To do this, remove the front cover of the pump, leaving the pump shaft
exposed. If the shaft does not rotate, turn the pump off by the pump switch. With a suitable
screwdriver, lightly press the shaft and rotate it in both directions. Turn the switch back on.
We recommend that users periodically check the pressure level and temperature of the buffer tank, as
well as the condition of the valves, fittings and accessories.
5.1
5.1
5.1
5.1
Emptying the DHW tank
Emptying the DHW tank
Emptying the DHW tank
Emptying the DHW tank
When the hot water tank needs emptying, it is essential that the power is first turned off and the
stopcock (mains water inlet) is closed. For emptying, open the drain valve and wait until the tank is
completely empty.
