Elpumps VB 20/800, User Manual

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30
0
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30
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55
0 1 2 3 4 5 6 7 8 9 10 11 12
H [m]
Q [m 3 /h]
1. 2. 3. 4.
1. VB 20/800, VB 25/800, VB 25/800 INOX
2. VB 25/900
3. VB 25/1000 INOX
4. VB 25/1300, VB 25/1300B, VB 50/1300,
VB 50/1300 B, VBP 25/1300 INOX,
VB 25/1300 Automatic, VB 25/1300 B
Automatic, VB 25/1300 B INOX
Automatic, VB 50/1300 B Automatic
0
5
10
15
20
25
30
35
40
45
50
55
0 1 2 3 4 5 6 7 8 9 10 11 12
H [m]
Q [m 3 /h]
1. VB25/1300 Inox, VB50/1300 Inox,
VB25/1300 Inox Automatic, VB 50/1300 Inox Automatic
2. VBP25/1300F
3. VB25/1500, VB25/1500B,VB50/1500, VB50/1500B,
VB50/1500B Inox, VB25/1500 Automatic,
VB25/1500B Automatic, VB50/1500B Inox Automatic,
VB50/1500B Automatic
4. VB25/1500 Inox Automatic, VB 50/1500 Inox Automatic
1. 2. 3. 4.
1. VB 25/1300 INOX, VB 50/1300 INOX,
VB 25/1300 INOX Automatic,
VB 50/1300 INOX Automatic
2. VBP 25/1300 F
3. VB 25/1500, VB 25/1500 B, VB 25/1500
INOX, VB 50/1500, VB 50/1500 B,
VB 50/1500 INOX, VB 50/1500 B INOX,
VB 25/1500 Automatic, VB 25/1500 B
Automatic, VB 25/1500 B INOX
Automatic, VB 50/1500 B INOX
Automatic, VB 50/1500 Automatic,
VB 50/1500 B Automatic
4. VB 25/1500 INOX Automatic,
VB 50/1500 INOX Automatic
Chapter 5: Maintenance, troubleshooting
IMPORTANT! Prior to the maintenance of the pump apparatus, disconnect
the apparatus from the mains voltage. It is done by removing the connection plug
from the socket.
The pump manufactured by the ELPUMPS Ltd is an apparatus of very simple structure. In case of installation performed with
due care, it will operate reliably.
However, it is reasonable to check the sealing (junk or Teflon) of the foot valve installed at the lower end of the suction
pipe at least every year. The integrity of the sealing is very important. The foot valve is a significant part of the water supply
system. Inspection and maintenance are necessary to perform more frequently in case of harder or sandy water. In case
the pump is operated in accordance with the instructions, it does not require any special maintenance. The bearings of the
motor are grease lubricated, which grease filling will ensure proper lubrication of the bearings for 1500 operating hours. In
case of risk of frost, the pump should be discharged by unscrewing the bleeder screw serving for this purpose, disassembled
from the well and stored in a frostless place. If the delivery capacity of the pump apparatus decreases, then it is supposedly
caused by the damage of the impeller or the sand deposited in the diffuser. If the impeller is cracked, broken or bobs on the
shaft, then the impeller should be replaced. If the pump is installed in a place where human supervision cannot be provided
(e.g. week-end garden), then the apparatus should be disconnected from the electrical mains when leaving. For storage
or transportation for a longer distance, it is reasonable to put the apparatus into a packing box which will protect it from
damages. We draw your attention that the water should be discharged from the pump prior to
storage or placing out of service for a longer period of time.
After a longer standstill (e.g. stoppage because of winter), act in accordance with the regulations of the section “Start-up”
prior to starting the pump. It may happen that the air from the tank escapes because of the fault of the valve. In such a case
the pump will switch on already after discharging 1-2 litre water and stop early. In such a case, act as follows:
• Disconnect the apparatus from the voltage by removing the connection plug from the mains connector.
• Open a cock on the consumer side.
• When water does not flow from the opened cock, then close it and pump the pressure of the air in the tank to
the value specified in the „Technical data” through the valve.
GB