Temporary Shutdown; Shutting Down For Extended Periods - Beretta POWER PLUS Installation Instruction

Temporary Shutdown

In the event of temporary absence over the weekend,
brief trips, etc. proceed as follows:
- Set the room thermostats to around 10°C
- Set parameter 2 to "10" or alternatively set the storage
heater thermostat to 10°C
By leaving the power supply on, as signalled by the
green LED flashing, and the fuel supply open the boiler
is protected.
The electronic controller has a frost protection function
that is also active in standby

Shutting Down for Extended Periods

If the boiler is not used for an extended period, the fol-
lowing operations must be performed:
- Move the main system switch and the main boiler
switch (1) to "off" and check that the green indicator
lights (2) and (3) are off.
- Close the fuel and water valves on the central heating
system.
b
In this case, the frost protection system is deac-
tivated. Empty the central heating and DHW
system if there is the risk of freezing.
The frost protection function has two levels:
- the first starts the pump
if the manifold temperature ≥ 5°C, or alternatively, when
CH_type=1 and the outside probe is connected; if the
out. temp ≤ 3°C (Par. 35=Frost_protection) the system
pump and the pump in the high temperature circuit are
started.
- the second starts the pump and the burner
if after 10 minutes the temperature in the manifold ≤
5°C, a burner is started at maximum output until the
temperature in the manifold ≥ 20°C;
if after 10 minutes the temperature in the manifold ≥
5°C, while if CH_Type = 1 and the outside probe is con-
nected, and the outside temperature ≤ 3°C, the pump
continues operating until the outside temperature ≥
3°C.
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