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1.9 CIRCULATION PUMP SOLAR PANEL SIDE.
The units are supplied with circulating pumps fitted with speed
regulator.
These settings are suitable for most systems.
In fact, the pump is equipped with electronic control to set ad-
vanced functions. For proper operation 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 (Fig. 11).
When the pump starts, the LED (2) lights up green for about 2
seconds, followed by short flashing at great intensity to then switch
off during normal operation. The LED (3) only lights up in PWM
setting, not used in the application. The three yellow LEDs (4)
indicate the three constant curve speeds.
Key:
1 - Function selection button
2 - Green (G) / red (R) LED
3 - Green (G) LED
4 - 3 yellow (Y) LEDs
12
Circulating pump LED
(first red LED)
R
Y
Y
Y
Y
On O
O
O
On
R
Y
Y
Y
Y
On O
O
On O
R
Y
Y
Y
Y
On O
On O
O
38 38
11
Description
Circulator mechanically
blocked
Abnormal situation (the
pump continues operating).
low power supply voltage
Electrical fault
(Pump blocked)
Selection of operating mode.
The operating mode is always visible and indicated by the 3 yellow
LEDs (4).
Info: All the LEDs are off when the pump is not powered.
Press the button (1) to change operating mode.
Every time the button is pressed, all the possible functions are
scrolled cyclically according to the following table:
Circulating pump LED
G
G
Y
Y
Y
G
G
Y
Y
Y
G
G
Y
Y
Y
G
G
Y
Y
Y
G
G
Y
Y
Y
- Constant curve: the pump works maintaining system head con-
stant. The pump working point will move up or down according
to the system's demand.
- PWM Profile: Do not use this operating mode.
Attention: if this profile is selected, the pump will stop.
For this kit the pump is set at "Constant curve speed 3" by default.
Real time diagnostics: in the event of malfunction the LEDs pro-
vide information on the pump operation status, see table (Fig. 12):
Diagnostics
The pump cannot restart
automatically due to an
anomaly
Voltage off range < 160 Vac
The pump is locked due to
power supply too low or
serious malfunction
Description
Constant curve speed 1
Constant curve speed 2
Constant curve speed 3
PWM - Do not use
PWM - Do not use
Remedy
Wait for the pump to make
automatic release attempts or
manually release the motor
shaft acting on the screw in
the centre of the head.
If the anomaly persists re-
place the pump.
Check power supply
Check the power supply if the
anomaly persists replace the
pump
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