Operating Modes; Technical Data - salmson Rocsan lix Manuel D'installation Et Mise En Service

English
Fig. 1.: Description
1 Cable
2 Handle
3 Motor housing
4 Oil separation chamber
4.2.1. Hydraulics
The hydraulic housing and impeller are made of cast iron. The dis-
charge side connection is designed as a horizontal flange connec-
tion. Various types of impeller are used:
• free-flow impellers
• single-channel impellers
• multiple-channel impellers
The product is not self-priming, in other words, the
pumped fluid must flow in either automatically or
with an upstream pressure device.
4.2.2. Motor
The motor housing is manufactured in stainless steel.
In the AC or three-phase current version, dry run motors are used
as the motors. The motor is cooled by the fluid around it. The
waste heat is directly transferred via the motor housing to the
pumped liquid. Therefore, these units must always be submerged
for continuous operation. The units can be used in intervals when
the motor is either submerged or emerged.
With AC motors, the operating capacitor is integrated in the
motor.
Furthermore, the motors are equipped with the following moni-
toring devices:
• Thermal motor monitor:
The thermal motor monitor protects the motor wind-
ing from overheating. On units with an AC motor, it is
integrated and self-switching. This means that the motor
is switched off when it overheats and is automatically
switched back on after it cools down. Bi-metal sensors are
used for this as standard.
The motor can also be fitted with an external leak electrode to
monitor the oil separation chamber. It reports water penetrating
the oil separation chamber through the mechanical shaft seal on
the fluid side.
The connection cable is 10 m long and available in the following
versions:
• AC version:
• cable with safety plug
• cable with safety plug and attached float switch
• Three-phase current version:
• free cable end
• cable with CEE plug and attached float switch
4.2.3. Sealing
Sealing to the pumped liquid and to the motor compartment is
made by two mechanical shaft seals. The oil separation chamber
between the mechanical shaft seals is filled with medicinal white
oil.
The white oil is poured in when the pump is assembled.
5 Hydraulic housing
6 Intake port
7 Discharge port
4.2.4. Float switch
The A version of the unit is fitted with a float switch. The float
switch is connected directly to the motor.
The float switch makes it possible to set up a level control system
which switches the unit on and off automatically.
4.3.

operating modes

4.3.1. operating mode "S1" (continuous operation)
The pump can operate continuously at the rated load without
exceeding the maximum permissible temperature.
4.3.2. operating mode "S2" (short-term operation)
The maximum operating period is given in minutes, for example,
S2-15. The pause must continue until the machine temperature
no longer deviates from that of the coolant by more than 2 K.
4.3.3. operating mode "S3" (interval operation)
This operating mode defines a combination of periods of opera-
tion 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 given, they relate 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
4.4.

Technical data

General data
Mains supply [U/f]:
Power consumption [P ]:
1
Rated motor output [P ]:
2
Maximum pump head [H]:
Maximum pump flow [Q]:
Activation type [AT]:
Liquid temperature [t]:
Protection class:
Insulation class [Cl.]:
Speed [n]:
Max. submersion:
Explosion protection:
operating modes
Submerged [OT ]:
S
Emerged [OT ]:
E
Starts per hour
Recommended:
37
See name plate
See name plate
See name plate
See name plate
See name plate
See name plate
3 to 40 °C
IP 68
F
See name plate
20 m
-
S1
S2 15 min, S3 10%*
20/h