Circulator Residual Discharge Head; Variable Speed Circulator; Manual Circulator Reset - Beretta POWER EVO-X Series Installation Manual

Circulator residual discharge head

1.5
The boiler is equipped with a high-efficiency modulating circulator
(already hydraulically and electrically connected) whose effective
available performance values are indicated in the graphs below.
Modulation is managed by the board, via parameter P4.05 (IN-
STALLER access level).
1000
950
900
850
800
750
700
DIFFERENTIAL PRESSURE SWITCH
650
600
INTERVENTION ZONE
550
500
450
400
350
300
250
200
150
100
50
0
0 100 200 300
1000
950
900
850
800
750
700
650
DIFFERENTIAL PRESSURE SWITCH
600
INTERVENTION ZONE
550
500
450
400
350
300
250
200
150
100
50
0
0 200 400

Variable speed circulator

1.6
The modulating circulator function is only active in heating mode.
When switched to DHW, the circulator always works at the maximum
speed. The modulating circulator function only applies to the circulator
of the boiler, not to circulators of any external devices that may be
connected (e.g. a relaunch circulator).
In this mode, the boiler board determines what flow rate value to adopt
according to the instantaneous flow rate supplied by the boiler. Go
to menu P4, parameter P4.05, if you want to change the modulation
value:
100= no modulation
60 = max modulation
85= default value
POWER EVO-X 50 DEP - 50
400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400
POWER EVO-X 65 - 80
600 800 1000 1200 1400
The boiler has an anti-lockout system that launches an operating
cycle after 24 hours of stoppage in any operating status.
b
The "anti-locking" function is only activated when the boiler is
electrically powered.
flow rate (l/h)
1600 1800 2000 2200 2400 2600
flow rate (l/h)

Manual circulator reset

1.7
If a manual reset is needed, proceed as follows:
ƒ remove the circulator plug
ƒ use a flathead screwdriver to rotate the shaft, taking care not to force
the seat.
12
PWM P4.05=100 (No Mod.)
PWM P4.05=85 default
PWM P4.05=60
2800 3000 3200 3400
65 - 80 50 DEP - 50
PWM P4.05=100 (No Mod.)
PWM P4.05=85 default
PWM P4.05=60