Mody Pumps MSPG Series - Manual (Page 3)

1
Contents
Identification plate
1
General description 1
Applications 1
Product description
1
Handling 1
Installation 2
Electrical connections
3
Operation 3
Service & maintenance 3
Technical data
Motor winding connection schemes
Identification plate
General description
The MODY MSP SERIES submersible
sewage pumps can be used in a variety of
residential, commercial and industrial
applications such as:
• Sewage System
• Flood and Pollution control
• Dewatering / Effluent
• Farms
• Hospitals
• Trailer Courts
• Hotels
MODY MSP SERIES pumps are subjected to
a thorough inspection before leaving the
factory and equipped with operating
instructions for fitting, starting, care etc. which
conform to international safety regulations.
These instructions describe the procedures to
be used for fitting, operation and
maintenance of standard submersible
waste water pumps.
Applications
This starting & operation manual are
applicable to the electric driven
submersible waste water pumps specified
on the front page. The pumps are
designed to be used for pumping raw
sewage water with solid contents. The
pumps are suitable for heavy duty
drainage applications and clean water too.
The manufacturer guaranties that the new
pump airborne noise level do not exceed
70 db(A) when submerged. For dry
installation the corresponding level is
75 db(A). Be aware that under wrong
operated duty points, noise level might be
higher.
Caution! This range of pumps is forbidden
to handle in flammable liquids nor used in
explosive environment.
Do not start the pump if any parts
belonging to the pump are missing.
If humans should be in contact with the
pumped liquid e.g. construction sites, lifting
stations etc. a grounded connection
including an earth leakage detector must
be used. Never install the pumps in
swimming pools, special regulations apply.
Product description
Limitations
Immersion depth to max 20m (66 ft ).
Media temperature up to 40
o C (115 o F ).
Higher media temperature on request.
Pump models
Example: MSP G2-50.X VX3 2-200
MSP
G2 = module range
50 = standard outlet discharge in mm
X = version of volute
V = vortex impeller or
C = channel impeller
X =
version of impeller, more than
one X can appear to indicate
other types.
3 = family pumps
2 = number of poles (rpm)
e.g. 2=3,500 rpm
200 = diameter of impeller in mm
Motor
3 phase squirrel cage induction motor for
60 Hz, degree of protection IP68,
insulation class H (180°C).
Motor protection
All stators are equipped with 3 built-in
thermal switches and are connected in
series which opens at 135°C and closes at
approx 90°C and are marked F1 & F2
control cable. To maintain warranty on the
pumps, these thermal switches must be
connected in series to control circuit of
control panel.
Cooling system
Models MSP2, MSP3 are standard
equipped with a closed internal cooling
system in all 3 types of installation, but can
be ordered without this system as an
option. Note that if ordered without closed
internal cooling system cannot be installed
as dry pit
The closed internal cooling system
functions as follows:
An internal impeller, located between the
two mechanical shaft seal, circulates the
cooling liquid in a closed loop through
channels to a cooling jacket surrounding
the stator housing. Thus, the heat
generated by the motor, is transferred to
the cooling liquid and finally dissipated to
the pumped liquid via a cooling flange
(heat exchange), without any physical
contact by the pumped sewage media.
Coolant: 70% water and 30% propylene
glycol.
Moisture sensor
All pumps are supplied with 3 moisture
sensors made of aluminum.
One sensor is placed in the seal oil
chamber; another sensor is placed in the
lower motor stator housing and a third
sensor is placed inside the motor cable
terminal board area.
The moisture detection control cable is
marked D. This control cable should be
connected to a relay (optional or by others)
in the control panel, which is activated by a
decrease in resistance to ground. Set the
alarm between 20 - 100 kOhm. Voltage
output applied to the moisture cable 12 -
24 VAC.
Power Cable
The pumps are standard equipped with
10m electric cable of the type H07RNF. If
longer cable is required, voltage drop must
be taken in consideration.
Handling
When transporting the pumps they must be
properly secured. Special attention must
be give to the cables; these cannot
withstand rolling heavy parts. All pumps
must be securely stored in vertical or
horizontal positions.
Always protect cable ends from moisture
and water as well, so that no moisture will
penetrate into the cable.
Before lifting the pump, check to determine
if the handle on the pump is properly
attached. Always use the lifting handle. Do
not use the cables or discharge hose. All
fixing screws and bolts must be securely
fastened before lifting. Human injury may
result if above is not properly secured.