Description of the pump
en
Installation and operating instructions Wilo-Yonos PICO1.0
7
3.3
Type key
Example: Yonos PICO1.0 25/1-6 130
Yonos PICO1.0
High-efficiency pump
25
Nominal diameter of screwed connection:
15 (G 1), 25 (G 1½), 30 (G 2)
1-6
1 = minimum delivery head in m (adjustable down to 0.5 m)
6 = maximum delivery head in m at Q = 0 m³/h
130
Installation length:
130 = 130 mm
-−- = 180 mm
3.4
Technical data
Connection voltage
1 ~ 230 V ± 10 %, 50/60 Hz
Protection class IP
See rating plate (4)
Energy efficiency index EEI
See rating plate (4)
Fluid temperatures at
max. ambient tempe40 °C
-10 °C to +95 °C
Permitted ambient temperature
-10 °C to +40 °C
Max. operating pressure
10 bar (1000 kPa)
Minimum inlet pressure at +95 °C/
+110 °C
0.3 bar/1.0 bar (30 kPa/100 kPa)
3.5
Applications/control mode and
functions
Radiator heating system
H
max
H
H
min
Hs
Q
Hs
1
/
2
Recommended for two-pipe heating systems with radiators to reduce the flow noise at
thermostatic valves.
Variable differential pressure (Δp-v):
The pump reduces the delivery head to half in
the case of decreasing volume flow in the pipe network. Electrical energy saving by ad-
justing the delivery head to the volume flow requirement and lower flow rates.
NOTICE
Factory setting: Δp-v, ½ Hmax
Underfloor heating
H
max
H
H
min
Hs
Q
Recommended for underfloor heating. Or for large-sized pipes, all applications without
a variable pipe network curve (e.g. storage charge pumps) or single-pipe heating sys-
tems with radiators.
Variable differential pressure (Δp-c):
The control keeps the set delivery head constant
irrespective of the pumped volume flow.
Pump venting function
The venting function is activated via the operating button and automatically vents the
pump for a period of 10 minutes.
However, this function does not vent the heating system.
