Baxi Luna Sat RPZ-SP+2C Installation And Operating Manual page 41

7.1 ADJUSTING THE SELF-MODULATING PUMP
The self-modulating pump has a knob for enabling and disabling all the functions, and a LED indicator around the same
knob. The diagnostics and meaning of the light signals of the LED are indicated in the table below.
Turn the knob to (DP-v), and the pump regulates the speed by adjusting the DP according to the pressure loss of
the system. This adjustment is recommended for heating systems with radiators.
Turn the knob to (DP-c), and the pump regulates the speed while keeping the DP constant in relation to the pressure
loss of the system. This adjustment is recommended for floor heating systems.
Turn the knob to to enable the aeration function for eliminating air in the heating system. This function takes 10
minutes. The pump then stops and enters stand-by mode, as indicated by the flashing green LED as described in the
table below.
Colour of LED
Steady GREEN Normal operation.
Operation in degassing
mode:
Blinking GREEN
Faulty operation (the pump
Blinking
starts but stops again
RED/GREEN
immediately).
The pump does not start
Blinking RED
(e.g. it is blocked)
No LED lights The pump is not powered.
INSTALLATION AND OPERATING MANUAL
p-v (variable)
Meaning Diagnostics
The pump runs correctly.
The pumps runs for 10
minutes in degassing mode,
during which time the
installer regulates the flow
of water in relation to the
pressure drop of the plant.
The pump restarts automa-
tically as soon as the cause
is resolved.
Reset the pump. Check
the LED.
There is no current at the
terminals of the pump.
41
Degassing the system
1 1
4 4
Red/green LED
(diagnostics)
7
7
p-c (constant)
Fault
-
-
1) Input voltage too low/
high: <160V / >280V.
2) Overtemperature (°C):
the pump is overheated.
The pump cannot restart
automatically due to a
permanent fault.
1) The pump is not con-
nected to the mains power
supply.
2) The LEDs are damaged.
3) The electronics of the
pump are damaged.
Solution
-
-
1) Check the supply volta-
ge value.
2) Check the temperature
of the water and/or room.
Replace the pump.
1) Check the electrical con-
nections of the wiring.
2) Check whether the pump
is turned on.
3) Replace the pump.
7224230.02 - en