Circulation Pump - Immergas VICTRIX EXA 28 1 ERP Instruction And Recommendation Booklet

1.25 CIRCULATION PUMP.

The boiler is supplied with circulator fitted with
speed regulator.
These settings are suitable for most systems.
In fact, the pump is equipped with electronic
control to set advanced functions. For proper op-
eration one must select the most suitable type of
operation for the system and select a speed in the
available range, with a focus on energy savings.
By-pass Regulation (part. 31 Fig. 1-31). The
boiler leaves the factory with all bypasses open.
If necessary, the by-pass can be regulated to
system requirements from minimum (by-pass
closed) to maximum (by-pass open). Adjust
using a flat head screwdriver, turn clockwise
and open the by-pass, anticlockwise it is closed.
Display of operation status. During normal
operation the status LED (2) is on green, the four
yellow LEDs (3) indicate circulator absorption
according to the following table:
Circulating pump LED Absorption
G Y Y Y Y
0 ÷ 25 %
On On Off Off Off
G Y Y Y Y
25 ÷ 50 %
On On On Off Off
G Y Y Y Y
50 ÷ 75 %
On On On On Off
G Y Y Y Y
75 ÷ 100 %
On On On On On
1-29
Circulating pump LED
(first red LED)
R Y Y Y Y
Circulator pump blocked
On Off Off Off On
R Y Y Y Y
Abnormal situation (the circulator
continues operating).
On Off Off On Off low power supply voltage
R Y Y Y Y
Electrical fault
(Circulator pump blocked)
On Off On Off Off
Selection of operating mode. To see the current
operation mode it is sufficient to press button
(1) once.
To change operation mode press the button
for between 2 to 10 seconds until the current
configuration flashing, each time the button is
pressed all possible functions are scrolled cycli-
cally. After a few seconds without doing any
operation the circulator memorises the selected
mode and goes back to operation display.
Attention: The circulator has various built-in
operation modes, however the constant curve
operation mode must be selected according to
the following table.
Circulating pump LED
G Y Y Y Y
On On On Off Off
G Y Y Y Y
On On On On Off
G Y Y Y Y
On On On On On
G Y Y Y Y
On On On Off On
Description
The circulator pump cannot restart
automatically due to an anomaly
Voltage off range
The circulator is locked due to power
supply too low or serious malfunction
19
Key:
1 - Function selection button
2 - Green (G) / red (R) LED
3 - 4 yellow LEDs (Y)
Constant curve: the circulator operates maintain-
ing constant speed.
Selection button lock. The button has a feature
that locks its operation to prevent accidental
modifications, to lock the control panel it is
necessary to press button (1) longer than 10
seconds (during which the current configuration
flashes), the active lock is signalled by all LEDs of
the control panel flashing. To unlock the button
press again longer than 10 seconds.
Real time diagnostics: in the event of mal-
function the LEDs provide information on the
circulator operation status, see table (Fig. 1-29):
Description
Do not use
Constant curve
speed 2
Constant curve
speed 3 (default
for Victrix EXA
28 1 ErP)
Constant curve
speed 4 (default
for Victrix EXA
32 1 ErP)
Diagnostics
Wait for the circulator to make auto-
matic release attempts or manually
release the motor shaft acting on the
screw in the centre of the head.
If the anomaly persists replace the
circulator.
Check power supply.
Check the power supply, if the anomaly
persists replace the circulator.
1-28
Remedy