Ferroli RVL-I PLUS, Installation And Maintenance Manual

Page: 12 / 92

12
WATER PUMP WORKING HEAD
The pump speed can be selected by adjusting the red knob on the pump. The notch point indicates
pump speed .
The default setting is the highest speed (III).
If the water flow in the system is too high the speed can be set to low (I).
The available external static pressure function for water flow is shown in the graph below.
Setting the pump speed
Pump LED diagnosis and solutions
The pump has an LED operating status display . This makes it
easy for the technician to search for the cause of a fault in the
heating system .
1 . If the LED display lights up continuously green, it means the
pump is running normally .
2 . If the LED display is flashing green, it means the pump is run-
ning the venting function . The pump runs during the 10 minute
venting function. After its cycle, the installer needs to adjust the
targeted performance .
3 . If the LED is flashing green/red, it means that the pump has
stopped operating due to an external reason . The pump will re-
start by itself after the abnormal situation disappears . The proba-
ble reason causing the problem is pump undervoltage or over-
voltage (U<160V or U>280V), and you should check the voltage
supply . Another reason is module overheating, and you should
check the water and ambient temperatures .
4 . If the LED is flashing red, it means the pump has stopped ope-
rating, and a serious fault has happened (e .g . pump blocked) .
The pump cannot restart itself due to a permanent failure and the
pump should be changed .
5 . If the LED does not light up, it means no power supply to
the pump, possibly the pump is not connected to power supply .
Check the cable connection . If the pump is still running, it means
the LED is damaged . Or the electronics are damaged and the
pump should be changed .
Failure diagnosis at the moment of first installation
■ If nothing is displayed on the user interface, it is necessary to
check for any of the following abnormalities before diagnosing
possible error codes .
■ Disconnection or wiring error (between power supply and unit
and between unit and user interface) .
■ The fuse on the PCB may have blown.
■ If the user interface shows "E8"or"E0" as an error code, there
is a possibility that there is air in the system, or the water level in
the system is less than the required minimum .
■ If the error code E2 is displayed on the user interface, check
the wiring between the user interface and unit .
More error code and failure causes can be found in 13 .3 Error
codes .
1-phase 10~16kW
3-phase 12~16kW
p/kPa
Constant speed
ⅠⅡⅢ
80
60
40
20
0
0
0
0
80
40
0
0 1 2 3 4
P
1
/W
0.2 0.4 0.6 0.8 1.0 1.2
Q/l/s
Q/m
3
/h
16 Q/lgpm
1 2 3 4 Q/m3/h
0
2
4 8 12
4
6
8
4640
1
/min
2970
1
/min
1270
1
/min
Max.
H/m
0
Wilo-Yonos PARA R5
25/7.5
1~230V-Rp1/2. RP1. Rp1/4
1-phase 5/7 kW
p/kPa
Constant speed ⅠⅡⅢ
Q/m
3
/h
Q/m
3
/h
4300
1
/min
3400
1
/min
2390
1
/min
800
1
/min
max.
Q/l/s
Q/lgpm
40
20
0
0 2 4 6 8 10
0
0
10
20
30
40
50
60
0
0
1
2
3
4
5
6
0.2
0.5 1.0 1.5 2.0 2.5 3.0
0.4 0.6 0.8
0
3.0 0.5 1.0 1.5 2.0 2.5
Wilo-Yonos PARA R5
15/6
，
25/6
，
30/6
1~230V-Rp1/2. RP1. Rp1/4
P
1
/W
Constant speed I II III
1-phase 10÷14 kW
3-phase 14 kW
1-phase 5/7 kW
Constant speed I II III