20
13
14
A3
A2
A1
V3
V2
V1
Operating mode selection
The operating mode is always visible and it is indicated by the
The operating mode is always visible and it is indicated by the
3 yellow LEDs (4).
Info:
If the pump is not powered, all LEDs are off.
To change operation mode, press the button (1).
Each time the button is pressed, all possible functions are scrolled
cyclically according to the following table:
Pump Led
Description
G
Y
Y
Y
G
Constant curve speed 1
G
Y
Y
Y
G
Constant curve speed 2
G
Y
Y
Y
G
Constant curve speed 3
G
Y
Y
Y
G
PWM - Do not use
G
Y
Y
Y
G
PWM - Do not use
- Constant curve: the pump works maintaining system head
constant. The working point of the pump will move up or
down according to the system request.
- PWM profile:
Do not use this operating mode.
Attention: if this profile is selected, the pump stops.
For Trio Pack Electric, the pump is set in "Constant curve speed
3" by default.
Real-time diagnostics
: in the event of a malfunction, the LEDs
provide information on the operating status of the pump, see
table (Fig. 14):
Pump Led
(First red LED)
Description
Diagnostics
Remedy
R Y
Y
Y
Y
On Off Off Off On
Mechanically blocked pump The pump fails to restart automatical-
ly due to an anomaly
Wait for the pump to make the automat-
ic release attempts, or manually release
the motor shaft by acting on the screw
in the centre of the head.
If the fault persists, replace the pump.
R Y
Y
Y
Y
On Off Off On Off
Abnormal situation (the pump
continues to operate).
low supply voltage
Voltage out of range <160 Vac
Check the power supply
R Y
Y
Y
Y
On Off On Off Off
Electric fault
(Pump blocked)
The pump is blocked due to a too low
power supply or a serious malfunc-
tion
Check the power supply. If the fault
persists, replace the pump
Available head of solar circulation unit.
Key:
Vn = Available head
An = Power absorbed by the circulator
Pu
m
p a
bs
or
be
d po
we
r (
W)
Flow rate (l/h)
H
ea
d (kP
a)
