15
* Recommended minimum flow rate: 5 l/min.
** When mounted on a flat horizontal surface.
9. Service
• The flexible pump hoses, dependent on water temperature
and mechanical stress, can deteriorate with age. We
recommend that all flexible hoses and connections are
inspected at least every 6 months. Replace as necessary to
prevent leaks. Only hoses designed for the pump can be used.
• If the flow from the shower drops below its normal
performance, it may be necessary to clean the pump strainers.
Blocked strainers are common on initial installation of pumps,
or in new buildings where the use of jointing compounds,
tapes, flux and other debris can be flushed through the
system.
In this event, close the service valves, remove and clean the
strainers. See section 3.5 Connecting the pump.
• A common cause of poor shower performance is a clogged
shower head/handset, so regular cleaning and descaling is
important. This applies particularly to hard-water areas.
• If you have any questions, please contact UK Service
Helpline: 0845 2000 914.
10. Disposal
This product or parts of it must be disposed of in an
environmentally sound way:
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest Grundfos company
or service workshop.
Data
Pump type
SSN 2.0 B SSN 3.0 B STN 1.5 B STN 2.0 B STN 3.0 B STN 4.0 B
Supply voltage 1 x 230 V, 50 Hz
Power consumption 400 W 435 W 525 W 640 W 850 W 920
Rated current 1.7 A 1.9 A 2.3 A 2.8 A 4.0 A 4.3
Rating* Continuous operation
Enclosure class** IPX2
Motor 2-pole induction
Inlet head (min. - max.) 1 to 8 m
Maximum developed pump
head
23 m 31 m 21 m 24 m 34 m 41 m
Maximum operating pressure 6 bar
Minimum starting flow rate 0.5 l/min.
Length 195 mm 195 mm 245 mm 258 mm 271 mm 284 mm
Width 225 mm 225 mm 225 mm 225 mm 225 mm 225 mm
Height 283 mm 283 mm 283 mm 283 mm 283 mm 283 mm
Weight 7.6 kg 7.6 kg 9.7 kg 11.3 kg 13.3 kg 15.8 kg
Sound pressure level (1 m) < 70 dB(A)
Grundfos.bk Page 15 Thursday, April 22, 2010 10:28 AM
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