SFA Sanipump ZPG 71 Manual De Funcionamento página 17

EN
Three-phase model:
The wires of the seven-wire connection cable of the pumps (three-
phase model) are marked as follows:
Green/Yellow PE
1 U1
2 V1
3 W1
4 TB1
5 TB2
Wiring diagrams three phase AC motor:
MAINS
3~ 2x230 V/60 Hz
L1 L2 L3
Fuse
Motor
protection
Motor
relay
U1 V1 W1
1 2 3
M
3~
2x230 V
60 Hz
Connection of the thermal winding cover
Control loop: T1 and T2 must be connected in a switching device in
such a way, that the following function is guaranteed: when the tem-
perature sensors respond, the pump is switched off until the tem-
pera-ture has dropped again. Now the pump is switched on again.
4.2 FITTING AND HYDRAULIC CONNECTION
NOTICE
Moving parts.
Risk of pinching, cutting or amputating fingers or other
body parts.
The pump installation must not allow access to mo-
ving parts.
The protection against accidental contact of moving
parts (e.g. coupling) must not be removed during ope-
ration of the machine.
Keep away from moving parts.
NOTICE
The waste water pump must be protected effectively
against the suction of air.
Do not mount pumps in dry installation, since a mi-
nimum water level up to the bottom edge of the motor
housing is prescribed by the guideline on protection
against explosion.
Installation with supporting ring:
- Mount supporting ring to intake flange of the pump and install
pump. Ensure stability of the pump.
- Connect pressure side by means of flange DN 50.
Ground wire (earthing)
Three windings, star connection
First contact control loop
Second contact control loop
Thermal winding
protection
TB1 TB2
4 5
Green/Yellow
PE conductor
- If a hose is to be laid on the pressure side, kinks are to be avoided.
- Avoid kinks during the laying of the supply cable. Lay supply cable
without tensile loading and without causing chafe marks.
Installation for shaft fitting:
- Position pipe clamp on inner rim of the shaft and loosely fix it with
two screws.
- Sound out position of guide pipe frame for coupling pedestal, ad-
just coupling pedestal on shaft bottom and mount it with the heavy-
duty dowels which are included in the delivery.
- 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.
4.3 LEVEL CONTROL SYSTEM
The pumps Sanipump ZPG 71 have to be controlled by means of a le-
vel control in such a way, that a 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, elec-
tropneumatically (press switch) or by means of other applicable me-
thods. The switching point of the pump should be set in such a way,
that the pump is entirely submersed under water.
5. COMMISSIONING
Check all connections for correct assembly, set gate valve on pas-
sage and check level control system for proper operation.
During the initial test run, check pipes for tightness and reseal them,
if necessary.
6. MAINTENANCE AND REPAIR
DISCONNECT THE PUMP BEFORE ANY INTERVEN-
TION !
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 autho-
rised qualified company in intervals of six to twelve months (or also
in shorter intervals, according to case of operation). Please immedia-
tely inform the customer department in case of damage to the pump
and/or the electrical equipment.
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