Hobby FIAT Premium Drive Manual page 156

Hot water
The boiler can also be used even if it has not been filled
with fresh water.
1. No hot water. If you do not need hot water, press "-".
(The icon is empty.)
It is not possible to make any settings for hot water if the
daytime or nighttime automatic system is in operation
and you have switched off the hot water. The plus and
minus icons are then greyed out.
2. Normal operation. If there is fresh water in the tank and
you would like to have hot water, press "+".
(The icon is half full.)
If the "Operation" function for the pump has been set to
"Cont", you cannot select this.
3. More hot water. Should you need more hot water, you
can temporarily increase the water temperature to approx.
65 °C. Press the plus key "+".
(The icon is full.)
After 30 minutes, the hot-water heater will switch back to
normal operation. If you have selected more hot water, the
circulation pump will continue to operate.
If the "Operation" function for the pump has been set to
"Cont", the function "Permanent pump operation" will be
disabled for 30 minutes, but then returns to permanent
pump operation.
You do not need to make any settings if you only require
hot water, for example in summer when no further
heating is required. The heating system will control this
function automatically.
Built-in devices 10-18