Riello CONDEXA HPR Series User Manual

GENERAL REMARKS
12
1.8 Circulator residual discharge head
The boiler is equipped with a high-efciency modulat-
ing circulator (already hydraulically and electrically con-
nected) whose effective available performance values
are indicated in the graphs below.
Modulation is managed by the board, via parameter
P4.05 (INSTALLER access level).
CONDEXA 35-45 HPR
CONDEXA 55-70 HPR
0
50
100
150
200
250
300
350
400
450
500
550
600
650
700
750
800
850
900
950
1000
0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 16 00 1700 1800 1900 2000 2100 2200 2300 2400
PWM P4.05=100 (No Mod.)
PWM P4.05=85 default
PWM P4.05=60
residual head (mbar)
flow rate (l/h)
DIFFERENTIAL PRESSURE SWITCH
INTERVENTION ZONE
0
50
100
150
200
250
300
350
400
450
500
550
600
650
700
750
800
850
900
950
1000
0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 3200 3400
PWM P4.05=100 (No Mod.)
PWM P4.05=85 default
PWM P4.05=60
residual head (mbar)
flow rate (l/h)
DIFFERENTIAL PRESSURE SWITCH
INTERVENTION ZONE
1.9 Variable speed circulator
The modulating circulator function is only active in heat-
ing 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 ow rate
value to adopt according to the instantaneous ow 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
1.10 Manual circulator reset
If a manual reset is needed, proceed as follows:
 remove the circulator plug
 use a athead screwdriver to rotate the shaft, taking care
not to force the seat.
The boiler has an anti-lockout system that launches
an operating cycle after 24 hours of stoppage in any
operating status.
9
The “anti-locking” function is only activated when
the boiler is electrically powered.

Riello CONDEXA HPR Series Specifications

General

Brand	Riello
Model	CONDEXA HPR Series
Category	Water Heater
Language	English