Sliding Delivery (Only If A Storage Tank Is Connected); Anti-Legionella Function (Only If A Storage Tank With Probe Is Connected); Special Function: Simultaneous Dhw And Heating (P5.14); Checks During And After The First Commissioning - Beretta POWER EVO-X Series Installation Manual

3.13 Sliding delivery
Parameter P5.07 is used to activate the SLIDING STORAGE TANK
DELIVERY function in order to modify the delivery setpoint used by
the boiler when there is a DHW request. The factory setting for this
parameter is "function not active", which provides for modulation at
a fixed delivery value of 80°C during a DHW request. To activate
the value, access the parameters as explained in paragraph "1.14
Accessing the parameters", then select menu P5 and item P5.07.
To activate the function, use the buttons to select a value of 1 and
confirm with Enter. In this case, the delivery setpoint is no longer
fixed at 80°C during a DHW request; it is variable, and is calculated
automatically by the boiler on the basis of the difference between
the required DHW setpoint and the temperature measured by the
storage tank probe.
Note: it is not advisable to activate this function for storage tanks
with a capacity of more than 100 litres, as the operation to load the
tank would be too slow.
It might be necessary to reset the value of this parameter if the
adjustment board is replaced.
3.14 Anti-legionella
function (only if a storage tank with
probe is connected)
The appliance has an automatic ANTI-LEGIONELLA function
which, when necessary (either daily or weekly, depending on the
setting), heats the DHW at 65°C and keeps it at that temperature
for 30 minutes to destroy any bacterial proliferation in the storage
tank. The function is not carried out if the temperature of the stor-
age cylinder reached 65°C over the last 24h, for daily scheduling,
or in the last 7 days, in the case of weekly scheduling.
If this function is activated, it is implemented every day at 3.00 a.m.
if programmed on a daily basis, or else every Wednesday at 3.00
a.m. if programmed on a weekly basis. Once activated, the function
takes top priority and cannot be interrupted.
b
The function is not carried out with the boiler set to OFF.
The ANTI-LEGIONELLA function can be activated by accessing
the parameters menu (see "1.14 Accessing the parameters") and
selecting parameter P5.01 in menu P5.
To activate the function, use the buttons to select a value of 1 and
confirm with Enter.
3.15 Special function: simultaneous DHW and
HEATING (P5 .14)
Parameter P5.14, if set to 1, allows you to manage the simultaneity
of heat demand from the boiler to the water-tank and the heating
circuit (only in cases in which the parameter hydraulic configuration
P3.01 is 3 or 4 i.e. a configuration with water-tank).
To use this configuration correctly it is necessary that parameter
P3.11 (CONFIG AUX) is set to 2, so that the ITRF05 manages the
additional pump.
In case of simultaneous use, if the heating request ends and the
burner is lit (due to the presence request of the water-tank) the
additional pump comes off after 2s.
Parameter P5.15 represents an offset on the del setpoint DHW and
heating circuit.
In case of simultaneity, this parameter allows you to raise the
delivery setpoint by the value set in the parameter.

3.16 Checks during and after the first commissioning

After starting up, check that the boiler carries out the start-up pro-
cedures and subsequent shut-down properly.
ƒ Also check operation in DHW mode (if a storage tank is in-
stalled) by turning on a hot water tap.
ƒ Check operation with the boiler in SUMMER mode (if there is a
storage tank) or WINTER mode.
ƒ After a couple of minutes of continuous operation.
ƒ Obtained by turning the main system main switch to ON, setting
the boiler status to Summer and keeping open the DHW service
open, the binders and processing residue will have evaporated
and it will be possible to run a combustion check.
(only if a storage tank is connected)

3.17 Combustion check

b
The checks of the CO
reference parameters (indicated in the tables below) must
be carried out with the casing closed. The opening of the
casing involves a reduction of about 0.2% of the values, and
depends on the installation configuration (the type and length
of the discharge and suction pipes).
b
Use the flue gas analysis probe adapter.
To carry out the combustion analysis, proceed as follows:
ƒ Turn the boiler OFF by pressing button 1
POWER EVO-X 50 DEP - 50
ƒ Remove the screw and cover on the upper wall (A-B).
ƒ Insert the analysis probe adaptor (D) (included in the documentation
bag) in the combustion analysis hole.
ƒ Insert the flue gas analysis probe in the adaptor.
POWER EVO-X 65 - 80
ƒ Remove the screw A.
ƒ Insert the flue gas analysis probe in the hole.
POWER EVO-X 50 DEP - 50
POWER EVO-X 65 - 80
ƒ Activate the combustion control function by pressing buttons 2+3 for
at least 2 seconds.
+
40
value adjustments in relation to the
2
.
A
B
D
A
+
RESET MENU
2 2 3 3