Mody Pumps MSP User Manual

MODEL: MSP Series

OPERATING INSTRUCTIONS, INSTALLATION & MAINTENANCE

MANUAL INCLUDING SPARE PARTS LIST

Mody Pumps Inc.

2166 Zeus Court

Bakersfield, CA 93308

Tel.: [phone] FAX.: [phone]

E-Mail: [e-mail]

http://www.modypump.com

LLIIFFEE IISS PPRREECCIIOOUUSS -- TTHHIINNKK SSAAFFEETTY

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1. Most accidents can be avoided by using COMMON SENSE.

2. Please read the operation and maintenance instruction manual supplied with the
pump. If you did not receive one, please call your local distributor before pump
installation.

3. Do not wear loose apparel that may become entangled in the impeller or other
moving parts.

4. Always use appropriate safety equipment, such as safety glasses, when working
on the pump or piping.

5. Pumps build up heat and pressure during operation-allow time for pumps to cool
before handling or servicing.

6. Only qualified service personnel should install, operate and repair pump.

7. Keep clear of suction and discharge openings. DO NOT insert fingers in pump
with power connected.

8. Do not pump flammable or hazardous materials (gasoline, acids, alkalis, etc.)

9. Do not block or restrict discharge hose, as it may whip or burst catastrophically
under pressure.

10. Make sure lifting handles/hooks are securely fastened each time before lifting.

11. Do not lift pump by the power cord under any circumstances.

12. Do not exceed manufacturer's recommendation for optimum performance, as this
could cause the motor/pump to overheat and lead to premature wear or failure.

13. Secure the pump in its operating position so it does not tip over, fall or slide.

14. Keep away from impeller when power is connected.

15. Submersible Pumps are not approved for use in swimming pools, recreational
water installations, decorative fountains or any installation where human contact
with the pumped fluid is common.

16. Do not operate pump without adequate protection and safety devices in place.

17. Always replace safety devices that have been removed during service or repair.

18. To reduce risk of electrical shock, pump must be properly grounded in
accordance with the National Electric Code and all applicable state and local
codes and ordinances.

19. To reduce risk of electrical shock, always disconnect the pump from the power

source before handling or servicing.

20. Any wiring of pumps should be performed by a qualified electrician.

21. Never operate a pump with a power cord that has frayed or brittle insulation.

22. Cable should be protected at all times to avoid punctures, cuts, and

abrasions - inspect frequently.

23. Never handle connected - "hot" power cords with wet hands.

24. Never operate a pump with a plug-in type power cord without a ground fault
circuit interrupter, adequate overload and short circuit protection.

IMPORTANT !!! Mody Pumps Inc. is not responsible for losses, injury, or death resulting
from a failure to observe these safety precautions, misuse or abuse of pumps or
equipment.

Mody Pumps Inc.: 2166 Zeus Court, Bakersfield, CA 93308 Tel.: [phone] Fax: [phone]

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.

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.

Caution! This range of pumps is forbidden
to handle in flammable liquids nor used in
explosive environment.

Product description

Limitations

Immersion depth to max 20m (66 ft ).
Media temperature up to 40
Higher media temperature on request.

Pump models

Example: MSP3-150.X VX3 6-300

MSP3 = module range
150 = 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
6 = number of poles (rpm)

e.g. 6=1,200 rpm
300 = 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

o

C (115 oF ).

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.

1

After a long period of storage, the pump must
be inspected carefully. Rotate the impeller by
hand before start-up and check carefully
seals and cable entry

WARNING! Never start up the pump without
impeller. This will damage (in a few seconds)
the O-ring that seals between the rotor-shaft
and the sleeve of the mechanical seal
cartridge. Both sleeve and rotor shaft could
also be damaged due to excessive friction!

Installation

When installing the pump, reduce the risk of
accidents. Be aware that the machine is
extremely heavy and that it contains electrical
open wires.

Before starting the installation, check and
secure all screws for the lifting handle, stator
and volute fixing bolts. Ensure that these are
all safety tightened.

Lifting chains, cranes etc. must always be
designed to fully accommodate the weight of
the complete pump units. For safety reasons
never walk under suspended load.

Discharge base elbow - DBE

guide rail bracket so the rails are accurately
located in vertical and parallel positions to
each other.

Connect the discharge pipe to the DBE. A
non return valve and gate valve sized
according to the flow velocity from the pump
are strongly recommended.

The lifting tackle must be installed directly at
the point above the center of gravity of the
pump for proper automatic coupling to and
release from the DBE, which is appropriately
designed for this purpose, when lifting and
lowering the pump from and to the DBE.

Dry pit installation

telescopic in design. The suction pipe can be
connected in any direction by changing the
location of the legs. After elevation

Place the
discharge base
elbow (DBE) at
the bottom of the
sump. If one
pump is installed,
place the pump in
the center of the
tank. Fit the guide
rails to the upper

All MSP2 and
MSP3 modules
can be installed
dry with adjust­able support legs
and a separately
supplied suction
elbow, or a fixed
suction base
elbow (SBE) unit.
Adjustable sup­port consists of
three legs that are

adjustment, the legs are set and fixed by
two screws that lock the pump
arrangement into position. The bottom leg
pads can then be secure by bolting and
anchoring them in the concrete foundation.

The suction pipe is connected vertically to
the pump suction flange.

Note: The motor unit is easier to remove or
re-install if the suction pipe is equipped
with a drain valve. This can be opened
when the motor is going to be or removed
or reinstalled.

The discharge pipe should be equipped
with a drain valve as well, in order to bleed
air from the system during first start-up.
Afterwards this valve can be fitted with a
manometer to measure the discharge
pressure.

Before starting, carefully inspect the cables
for defects and check the level of coolant
in the cooling jacket.

Portable version / installation

This version needs
extra attention while
operating. The pump
can be supplied with
a support ring.

Place the pump on a
firm surface. Keep

the cables straight
and secure so that they cannot be nipped
or cut in any way.

WARNING! Never remove the support ring,
human contact might occur and make
injury.

If there is risk of overturning, place and fit
the pump on a steel plate.

When hoses are used as discharge
connection, remember that friction losses
are higher than in a pipe and flow may be
less than expected.

Electrical connections

The electrical installation must be
inspected by authorized electrician before
switching-on.

Make sure that the electrical terminals and
starting equipment is installed in such way
that it cannot be flooded. The electrical
installation must apply to national and local
regulations.

All pumps are supplied with built-in thermal
switches in the stator windings. These are
marked F1, F2 on the control cable and
must always be connected in series to the
control circuit in the control panel.

CAUTION! All electrical equipment must
always be earthed (grounded). This applies
both to the pump and to any monitoring
equipment.

The control cable marked D is connected
to the moisture sensors. This cable should
be connected to a conductive liquid level
relay in the control panel. An alarm should
be given in event of moisture intrusion.
Your local MODY representative can
supply you with the conductive liquid level
relay as an option.

Make sure that the power supply, voltage,
frequency and starting method
corresponds to the nameplate data fitted
on the pump.

The motor can operate by voltage
tolerances at +/- 10%. The motor might be
overloaded and burned out if this is
exceeded.

For power supply cable, and control cable
connections, refer to the motor winding
connection schematics in this manual.

• Direct online starting DOL

• Star-Delta starting Y-∆

Starting equipment in the control panel
must be provided with over current
protection sensitive to phase failure. A 3­phase asymmetry control relay is
recommended, adjusted to 15% phase
asymmetry

The power supply should be fused with
low-blow fuses.

15 Starts per hour (regularly spaced) are
permitted

Replacing the power cable

If the cable has been compressed or
damaged it must be replaced to avoid
water entry.

When changing the cable always change
the rubber cable seal was well. Never
change cable dimensions from the original
cable or cable seal dimensions from the
original seal, as water may enter the motor
if these are not properly sized.

If the same cable is re-used due to any
repair work, always cut away a piece at the
cable entry in order to seal on a non
compressed cable sheath.

For safety reasons the grounded conductor
strand should always be longer than all the
other conductor strands. If the motor cable
is accidentally wrenched off, the grounded
conductor should be the last to break away
from its terminal. This applies to both ends
of the cable.

Electromagnetic Compatibility,
EMC

The pump does not generate any
electromagnetic (EMC) that would affect
other equipment. However, if the pump
power is supplied by a frequency inverter,
the power cables may require screening.

All MSP2 and MSP3 pump modules
comply with directive EN89/336/EEC
regarding EMC.

2

Operation

Before initial start-up after repair or in a new
installation, always check direction of
rotation. The pump must always rotate in an
anti-clockwise direction. If the rotation is
clock-wise, transpose two phases in the
electric control panel so that it will change to
proper rotational direction.

Be aware of the starting torque, it may be
very strong depending on the size of the
pump. Do not hold the pump when checking

Inspection

CAUTION! Before undertaking any service
work, make sure that the pump is
thoroughly clean, and bear in mind the
importance of observing good personal
hygiene. Follow your local safety
instructions.

Pump

Section

Inspection Action in

the rotation. The pump must be heavily
supported and never started when hanging in
a chain without proper support when
performing a rotational check or in operation.

WARNING! As the pump will pump up to 70%
of the nominal flow at wrong rotation, never
use the visual flow rate to determine the
direction of rotation. Most times, the pump
creates heavy noise and vibration when
operates at wrong rotation.

WARNING! Do not insert your hand or any
other object into the pump volute and impeller
if any power supply is connected. Remove
physically the cable even if security devices is
activated

Service and
maintenance

Regular inspection and preventive
maintenance will ensure more reliable
operation. The pump should be inspected
every six months or more often if the
operating conditions are difficult. The cable
should be checked more frequently. For a
complete overhaul of the pump, please
contact an authorized MODY service facility
workshop or your MODY dealer.

CAUTION! When the pump or motor section
has been laid on its side, always secure it with
wedges from both sides to prevent it from rolling
away.

CAUTION! Parts must be replaced by genuine
spares, including screws, to ensure correct
strength.

CAUTION! Before maintenance and repair
work, motor leads must first be completely
disconnected from the power supply.

Never work on electrical systems during a
thunder storm.

All work on the electrical system may only be
performed by qualified electricians.

Cables Check that the

Cooling
water

Visible Parts Check that all

Impeller /
Wear ring

Shaft seal Check that the

Hoses,
pipes and
valves

sheath is not
damaged.

Check that the
cables are not
kinked or
nipped.
Check the
cooling water
level of coolant

parts are in
good condition,
and that bolts
and nuts are
securely
tightened.

Check that the
parts are not
worn to such an
extent that the
pump
performance is
affected.

oil is clean and
is not mixed with
water.

See under
“Changing the
oil”.
Check that the
equipment does
not leak or is
otherwise
damaged.

Changing the oil

Change of oil is done in the same way on
cooled and un-cooled pumps. Remove the
plug marked “outlet” and let the old oil pour
out through the groove under the plug.

Discard of any used oil in accordance with
local regulations. Fasten the plug so that
the lower but not the top O-ring gasket
seals. Loosen the plug marked “inlet” and
fill up with oil and then fasten both oil
plugs. Use food grade oil of same quality
and performance as Enerpar M002, white
oil.

CAUTION! In the event of inward leakage,
the oil housing may be pressurized.

When removing the oil plug, hold a piece of
cloth over it to prevent oil from splashing.

the event
of a
fault.

Fit a new
cable.

Correct
the fault.

Fill up
with
cooling
liquid.
Replace
worn
parts.

Tighten
any loose
bolts and
nuts.
Adjust
the wear
ring.

In the
event of
slight
leakage,
change
the oil.

Adjust or
replace
defective
parts.

NOTE! Old oil should be entrusted to an oil
disposal company in accordance with local
regulations.

3

3 ~ Direct on –line starting DOL

Motor connection:

1 Power Supply Cable

+ 1 Control Cable

Color Coding

U Black
Power Supply V Brawn
W Grey
PE Yellow

F1 Black
Control F2 Brawn
D* Grey

1 Power Supply and

Control Cable

Ʀ

3~ Direct - on - line

starting DOL

Motor connection : ǻ

PE

UVW

F1 F2 D

Color Coding

U Black-1
V Black-2
W Black-3
PE Yellow
F1 Black-4
F2 Black-5
D* Black-6

*Not available for PX1-65.0 Series

Internal Connection on Motor’s Terminal Board

U1, U2 : Black
V1, V2 : Red
W1, W2 : Orange

Thermal switches

Moisture

4