Immergas ERP - Circulation Pump; Display of Operation Status; Selection of Operating Mode; Selection Button Lock

IE
25
Circulation pump.
e units are supplied with circulating pumps
tted with speed regulator.
ese 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.
Display of operation status. During normal
operation, the status LED (2 Fig. 4) is switched on
and green (ashing (FL) when it is in stand-by),
the four yellow LEDs (3 Fig. 4) indicate the pump
absorption according to the following table:
Circulating pump LED Absorption
G Y Y Y Y
FL O O O O
Circulator in
stand-by
G Y Y Y Y
On On O O O
0 ÷ 25 %
G Y Y Y Y
On On On O O
25 ÷ 50 %
G Y Y Y Y
On On On On O
50 ÷ 75 %
G Y Y Y Y
On On On On On
75 ÷ 100 %
Selection of operating mode. To see the cur-
rent operation mode simply press the button
once (1 Fig. 4).
To change operation mode press the button
for between 2 to 10 seconds until the current
conguration ashing, each time the button is
pressed all possible functions are scrolled cycli-
cally according to the table (Fig. 5). Aer a few
seconds without doing any operation the circula-
tor memorises the selected mode and goes back
to operation display.
- Constant curve: the pump operates with a con-
tant curve. e circulator working point will
move up or down according to the system's
demand.
- PWM Profile: do not use this operation
mode.
Selection button lock. e button has a feature
that locks its operation to prevent accidental
modications, to lock the control panel it is
necessary to press button (1) longer than 10
seconds (during which the current conguration
ashes), the active lock is signalled by all LEDs of
the control panel ashing. To unlock the button
press again longer than 10 seconds.
Real time diagnostics: in the event of malfunc-
tion the LEDs provide information on the circu-
lator operation status, see table (Fig. 6):
Circulating pump LED
(rst red LED)
Description Diagnostics Remedy
R Y Y Y Y
On O O O On
Circulator pump blocked
e circulator pump cannot restart
automatically due to an anomaly
Wait for the circulator to make automatic
release attempts or manually release the mo-
tor sha acting on the screw in the centre of
the head.
If the anomaly persists replace the circulator.
R Y Y Y Y
On O O On O
Abnormal situation (the circulator
continues operating).
low power supply voltage
Voltage o range Check power supply
R Y Y Y Y
On O On O O
Electrical fault
(Circulator pump blocked)
e circulator is locked due to power
supply too low or serious malfunction
Check the power supply, if the anomaly persists
replace the circulator
Key:
1 - Function selection button
2 - Green (G) / red (R) LED
3 - 4 yellow LEDs (Y)
4
6
5
Circulating pump LED Description
G Y Y Y Y
On On On O O
Constant curve
speed 1
G Y Y Y Y
On On On On O
Constant curve
speed 2
G Y Y Y Y
On On On On On
Constant curve
speed 3
G Y Y Y Y
On On On O On
Constant curve
speed 4 (default)
DO NOT USE
Circulating pump LED Description
R Y Y Y Y
On O On O O
PWM Prole
speed 1
R Y Y Y Y
On O On On O
PWM Prole
speed 2
R Y Y Y Y
On O On On On
PWM Prole
speed 3
R Y Y Y Y
On O On O On
PWM Prole
speed 4