Level Control System; Commissioning; Maintenance And Repair; Malfunctions, Causes And Troubleshooting - SFA SANIPUMP ZFS 71 Manual De Instrucciones

- Install pressure pipe and valves in a tension-free manner.
- Slip the guide pipe on the coupling pedestal, shorten it to correct length, slip on pipe clamp and tighten it
for good.
- Mount coupling element and lowering chain to the pump, lower pump with the chain (insert guide pipe into
coupling element) and couple it, hang the chain up on the pipe clamp so that it is ready to hand.
- Lay supply cable. Avoid kinks and lay supply cable without tensile loading and without causing chafe marks.

5.3 Level control system

The pumps SANIPUMP
®
decline of the water level beneath the minimum allowable level (bottom line of motor housing) is avoided at
all costs.
The level control can be effected by means of a floating switch, electropneumatically (press switch) or by
means of other applicable methods. The switching point of the pump should be set in such a way, that the
pump is entirely submersed under water.
If the level control is effected via a floating switch, the signal of the floaters has to be transmitted via
intrinsically safe Ex i –relays.

6. COMMISSIONING

Check all connections for correct assembly, set gate valve on passage and check level control system
for proper operation.
During the initial test run, check pipes for tightness and reseal them, if necessary.

7. MAINTENANCE AND REPAIR

Disconnect the power supply before carrying out any kind of
work on the plant!
After an operation time of six to twelve months, the oil storage inside the seal carrier always has to be
controlled as follows: put the pump on its side on a clean surface and position it in such a way that the
oil filling screw faces upwards. Take out the screw and check the oil level. If only a small quantity of
oil is lacking, the oil storage can be filled up without any problems. If a considerable quantity of oil is
lacking, or if the oil is mingled with water, the customer department has to be informed.
All other maintenance works on the pump and on the electrical equipment should be carried out by the
manufacturer or an authorised qualified company in intervals of six to twelve months (or also in shorter
intervals, according to case of operation). Please immediately inform the customer department in case
of damage to the pump and/or the electrical equipment.

8. MALFUNCTIONS, CAUSES AND TROUBLESHOOTING

Disconnect the power supply before carrying out any kind of work
on the plant !
ZFS 71 have to be controlled by means of a level control in such a way, that a
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