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ENGLISH
1 General Information
Assembly and installation should only be carried out by qualified person-
nel
1.1 Uses
The circulating pumps of the Wilo-Star series have been designed for
water heating systems and similar systems with constantly changing deli-
very rates. This pump's electronic differential pressure control allows the
pump capacity to be infinitely adapted to the system's actual heat require-
ment.
1.2 Product data
1.2.1 Rating plate
Star-E 25 / 1-3
Series: Heating circulating pumps, wet runner motors
E f Energy-saving pump
Nominal diameter DN of union thread [mm]
Screw connection: 15 (Rp|), 25 (Rp1), 30 (Rp1[)
Infinitely variable required delivery head
1 to 3 m (H
min
: 1 m, H
max
: 3 m)
1 to 5 m (H
min
: 1 m, H
max
: 5 m)
1.2.2 Connection and electrical data
Type of pump E 15(25,30)/1-3 E 15(25,30)/1-5
Mains voltage 1 ~ 230 V ± 10%, 50 Hz
Motor power P
1
max see rating plate
Max. no. of revolutions see rating plate
System of protection IP 42
Water temperatures* 15 to 110°C
Maximum working pressure 10 bar
Max. ambient temperature * 40 °C
Stepless differential pressure control 0.5 to 3 m 1 to 5m
Minimum supply pressure 0.05 bar 0.3 bar 1.0 bar
at T
max
50°C 95°C 110°C
Nominal Width PN Rp| (Rp1, Rp1[)
Fitting length 130/180 mm
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