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24
WILO SE 03/2011
Application limits
The specified maximum volume flow applies for intermittent operation (S3 – 60% / 60 s,
i.e. max. 36 s operating time, min. 24 s idle time).
The unit may switch on a maximum of 30 times per hour per pump. The running time of the
pump may not exceed 36 s, including the follow-up time (follow-up time = pump running
time after the end of pumping water). The operating time and follow-up time (if required)
should be set as short as possible.
Furthermore, the operating parameters should be observed in accordance with Table 5.2.
WARNING! Danger due to overpressure!
If the lowest inlet head is higher than 5 m, this will cause dangerous overpressure in the
reservoir in the event of a unit failure. If this happens, there will be a risk of the tank
bursting. In case of malfunctions, the inlet must be blocked off immediately.
WARNING! Risk of burns!
Depending on the operating status of the system, the entire pump can become very
hot.
Touching the pump can cause burns.
Correct use of the pump/installation also includes following these instructions.
Any use going over and beyond the intended use is considered to be improper.
5 Product information
5.1 Type key
Example:
DrainLift XL 2/25 (3~)
DrainLift
Sewage lifting unit
XL
Size
2
2 = double-pump system
/25
Maximum delivery head [m] when Q=0 m³/h
(3~)
3~: Three-phase version
5.2
Technical data
DrainLift XL
2/10
2/15
2/20
2/25
Connected voltage
[V]
3~400 ± 10 %
Connection version
Switchgear with 1.5 m mains cable and
32 A CEE plug, pre-installed
Power consumption P
1
[kW]
See unit name plate
Nominal current
[A]
See unit name plate
Mains frequency
[Hz]
50
Protection class
Unit: IP 67 (2 mwc, 7 days)
Switchgear: 65
Speed
[rpm]
2900
Operating mode
S1, S3-60 %/60 s
Max. switching frequency
[1/h]
60 (30 per pump)
Max. total delivery head
[mWS]
10
15
20
22
Max. permitted geodesic delivery head
[mWS]
9
13
16
19
Max. permissible pressure in the pressure pipe
[bar]
3
Max. volume flow
[m³/h]
35
37
40
40
Max. fluid temperature
[°C]
40
Min. fluid temperature
[°C]
3
Max. ambient temperature
[°C]
40
Max. solid grain size
[mm]
40
Sound pressure level
(depending on duty point)
[dB(A)]
< 70 *
1)
Gross volume
[l]
380
Switching volume (switching level)
[l]
260 (ON 550 mm)
Max. inflow in one hour
(only at max. possible switching volume)
[l]
15600
Minimum level for Pump ON switching point
[mm]
550
Minimum level for Pump OFF switching point
[mm]
80
