34
WILO SE 10-2014 V05 DIN A4
English
PRODUCT DESCRIPTION
3.2.3. Monitoring equipment
•
Thermal motor monitor:
The thermal motor monitor protects the motor
winding from overheating. For pumps with sin
-
gle-phase AC motors this is built-in and switches
automatically. I.e. if the motor is switched off due
to overheating and then cools down it is auto-
matically switched on again. Bimetallic strips are
used for this as standard.
The motor can also be fitted with an external
pencil electrode to monitor the sealing cham-
ber. This signals if there is water ingress into the
sealing chamber through the mechanical seal on
the fluid side.
3.2.4. Sealing
The seal for the fluid and the motor compartment
is made via two mechanical shaft seals. The seal
-
ing chamber between the mechanical shaft seals
is filled with ecologically safe medicinal white oil.
3.2.5. Materials
•
Motor housing: 1.4301
•
Hydraulic housing: EN-GJL-250
•
Impeller: EN-GJL-250
•
Shaft end: 1.4021
•
Static seals: NBR
• Sealing
•
On pump side: SiC/SiC
•
On motor side: C/MgSiO4
3.2.6. Float switch
In the "A" version the pump is equipped with
a float switch. The float switch is directly con
-
nected to the motor.
By using the float switch it is possible to set up
a level control, at which the pump is automatically
switched on and off.
3.2.7. Attached plug
In the "P" and "F" version, a shockproof plug is
attached for single-phase AC motors and a CEE
plug is attached for three-phase AC motors.
These plugs are designed for use in commercially
available shock-proof or CEE sockets and are not
overflow-proof.
BEWARE of moisture!
Ingress of moisture will result in damage to
the plug. Never immerse the plug in fluid and
always protect it from moisture.
3.3. Operating modes
3.3.1.
Operating mode S1 (permanent operation)
The pump can operate continuously at the rated
load without exceeding the permissible temper
-
ature.
3.3.2.
Operating mode S2 (short-term operation)
The maximum operating period is specified in
minutes, e.g. S2-15. The pause must last until the
machine temperature no longer differs from the
temperature of the coolant by more than 2 K.
3.3.3.
Operating mode S3 (intermittent operation)
This operating mode defines a combination
of periods of operation and standstill. With S3
operation, the values given are always calculated
based on a period of 10 minutes.
Examples
•
S3 20 %
Operation 20 % of 10 min = 2 min / standstill
80 % of 10 min = 8 min
•
S3 3 min
Operation 3 min / standstill 7 min
If two values are specified, they are related to
each other, e.g.:
•
S3 5 min/20 min
Operation 5 min / standstill 15 min
•
S3 25 %/20 min
Operation 5 min / standstill 15 min
3.4. Technical data
General data
Mains connection [U/f]:
See rating plate
Power consumption [P
1
]:
See rating plate
Rated motor power [P
2
]:
See rating plate
Maximum delivery head [H]:
See rating plate
Maximum volume flow [Q]:
See rating plate
Activation type [AT]:
See rating plate
Fluid temperature [t]:
3…40 °C
Protection class:
IP 68
Insulation class [Cl.]:
F
Speed [n]:
See rating plate
Max. immersion depth:
20 m
Explosion protection:
-
Operating modes
Immersed [OT
S
]:
S1
Non-immersed [OT
E
]:
S2 15min, S3 10%*
Switching frequency
Recommended:
20/h
Maximum:
50/h
Free ball passage
FIT V05-…:
50 mm
FIT V06-…:
65 mm
FIT V08-…:
80 mm
Suction connection:
FIT …05-…:
DN 50, PN 10
FIT …06-…:
DN 65, PN 10
FIT …08-…:
DN 80, PN 10
Pressure connection:
FIT …05-…:
DN 50/Rp2, PN 10
FIT …06-…:
DN 65/80, PN 10
FIT …08-…:
DN 80/100, PN 10