Mody Pumps M 304 T User Manual

MODELS: M 154 T, M 154 S/T, M 204 T, M 204 S/T, M 304 T

VERSION 1.4

OPERATING INSTRUCTIONS, INSTALLATION & MAINTENANCE

MANUAL INCLUDING SPARE PARTS LIST

Mody Pumps Inc.

Bakersfield, CA 93308

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

EMAIL: [e-mail]

http://www.modypump.com

2166 Zeus Court

LLIIFFEE IISS PPRREECCIIOOUUSS -- TTHHIINNKK SSAAFFEETTYY

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]

WARNING !!!

Mody Single Phase Pumps Must be Run Using a

Capacitor Pump Panel.

Wiring Schematic is Attached.

Run Capacitor (Rc): 35mfd, 370-440v. MARS # 12243
Start Capacitor (Sc): 215-259mfd, 220-250v. Mars # 11052
Potential Relay 130v: 111-134v pickup, 15-40v Dropout. MARS # 19550
OR
Potential Relay 332v: 244-270v pickup, 40-90v Dropout. MARS # 19551

Warranty is void if pump is operated without suitable Control Panel.

DO NOT CONNECT POWER SUPPLY TO

PUMP DIRECTLY

GENERAL INFORMATION.

THE

“mody” PORTABLE SUBMERSIBLE PUMPS CONSIST OF A SQUIRREL CAGE INDUCTION

MOTOR DRIVING A CENTRIFUGAL PUMP. THE PUMP IMPELLER IS DIRECTLY MOUNTED ON THE
MOTOR SHAFT EXTENSION, WITH A "SEAL MODULE" INCORPORATED BETWEEN THE PUMPING
ELEMENT AND THE ELECTRIC MOTOR. THE PUMP CASING ENCOMPASSES THE MOTOR CASING,
AND THE HEAT GENERATED IN THE MOTOR IS DISSIPATED BY THE WATER FLOWING PAST THE
MOTOR CASING. THE DISCHARGE OUTLET OF THE PUMP IS 2.5” OR 3” SS NPT; DEPENDING
ON THE HP. THE PUMPS CAN ALSO BE SUPPLIED WITH A SUITABLE ADAPTER FOR DIRECT
CONNECTION TO A 2.5” OR 3" FIRE HOSE INSTANTANEOUS COUPLING.

THE MOTORS ARE RATED 5HP/3HP/2HP(MODEL M304T/M204T/M154T) SUITABLE FOR 230/460
VOLTS, 3 PHASE, 60 HZ POWER SUPPLY. (MOTORS ARE AVAILABLE FOR VARIOUS POWER
SUPPLY CONFIGURATIONS -- PLEASE CHECK NAME PLATE ON THE PUMP VERY CAREFULLY TO
CONFIRM THAT YOUR POWER SUPPLY MATCHES THE NAME PLATE DETAILS). ALL MOTORS ARE
RATED CLASS "F" INSULATION. THE MOTOR CASING AND PUMP CASING ARE EXTRUDED EPOXY
COATED ALUMINUM SECTIONS FOR MAXIMUM STRENGTH, CORROSION RESISTANCE AND MINIMUM
WEIGHT. THE IMPELLERS ARE TYPICALLY 410 HARDENED TO ENSURE MAXIMUM ABRASION
RESISTANCE AND LONG LIFE. (IMPELLERS ARE ALSO AVAILABLE IN 304/316 STAINLESS
STEEL WHICH ARE NORMALLY REQUIRED FOR CORROSION RESISTANT APPLICATIONS).
IMPELLERS ARE OF MIXED FLOW DESIGN WITH A HIGH HYDRAULIC EFFICIENCY. THE 304 SS
STRAINER IS RUGGED ENOUGH TO WITHSTAND ABRASIVE AND CORROSIVE APPLICATIONS.

“mody” SUBMERSIBLE SUMP PUMPS INCORPORATE A UNIQUE SEALING SYSTEM. THE

ALL
MODULAR CONSTRUCTION CONSISTS OF TWO MECHANICAL SEALS, ARRANGED IN TANDEM. THE
COMPLETE PACKAGE IS WHOLLY ENCLOSED IN A PRESSURE COMPENSATED OIL BAG WHICH
ACTS AS A SEALING DEVICE THAT ENSURES A MINIMAL PRESSURE DIFFERENTIAL ACROSS
THE SEAL FACES IRRESPECTIVE OF THE DEPTH SETTING OF THE PUMP, OR THE HEAD
AGAINST WHICH THE PUMP IS OPERATING.
ALL WEAR PARTS OF THE PUMPING UNIT ARE LINED WITH NITRILE RUBBER, MAKING THEM
EXTREMELY RESILIENT AND ABRASION RESISTANT. THE SS MOTOR SHAFT IS EXTRA WIDE
FOR ADDED STIFFNESS AND CAN WITHSTAND SEVERE RADIAL AND THRUST LOADS.

IT IS IN THE INTEREST OF THE USER THAT HE GO THROUGH THIS MANUAL IN DETAIL
PRIOR TO USING THE PUMP. THIS MANUAL WILL HELP HIM/HER UNDERSTAND THE
CONSTRUCTIONAL FEATURES AND TO OBTAIN TROUBLE FREE SERVICE FROM THE PUMP.

OVERALL DIMENSIONS AND WEIGHT (M304T)

OVERALL HEIGHT 28.5”
MAXIMUM DIAMETER 7.5”
MAXIMUM WEIGHT(EXCL. CABLE) 79 lbs.

INSTALLATION.

• CHECK THAT THE SITE VOLTAGE CORRESPONDS WITH THAT OF THE PUMP.

• CHECK THAT FUSES ARE INTACT.

• USE SHORTEST POSSIBLE HOSE IN RECOMMENDED DIMENSION. AVOID SHARP BENDS,

CREASES, AND CONTRACTIONS.

• NEVER LIFT OR PULL THE PUMP BY MEANS OF THE CABLE. SUSPEND THE PUMP BY A
ROPE OR PREFERABLY PLACE IT ON A SOLID BASE.

• THE MAXIMUM PUMP SUBMERGENCE RECOMMENDED IS 50 Feet.

• THE SPECIFIC GRAVITY OF THE PUMPED FLUID SHOULD NOT EXCEED 1.1 UNDER ANY

CIRCUMSTANCES.

• WINDING WITH RESPECT TO EARTH: MINIMUM INSULATION RESISTANCE SHOULD BE 5
MEGOHMS. WIRE THE PUMP TO THE MAINS CORRECTLY. ALWAYS USE A STARTER OR A
PANEL BOARD. SEE INSTRUCTIONS UNDER "MOTOR PROTECTION" BELOW.

• AT THE STARTING MOMENT, THE PUMP SHALL MAKE A KICK, WHICH IS OPPOSITE TO THE
DIRECTION OF ROTATION OF THE IMPELLER. SHIFT TWO PHASES IN THE POWER
CONNECTION IF THE KICK IS IN THE WRONG DIRECTION. THE CORRECT DIRECTION IS
INDICATED ON THE PUMP COVER AT THE TOP OF THE PUMP. (THIS IS NOT NECESSARY
WITH SINGLE PHASE PUMPS, AS THEIR DIRECTION OF ROTATION IS FIXED AND CANNOT
BE CHANGED. HOWEVER, ENSURE THAT THE CONNECTIONS WITH THE PANEL BOARD
SUPPLIED WITH THE UNIT ARE DONE AS PER COLOR CODE INDICATED IN THE
PANEL/MOTOR LEADS). SINGLE PHASE MOTOR LEADS: RED-STARTING, BLUE-RUNNING,
YELLOW/WHITE-COMMON, GREEN-GROUND.

• THE DIRECTION OF ROTATION CAN BE ESTABLISHED BEFORE IMMERSING THE PUMP IN
WATER. DO NOT HOWEVER, RUN THE PUMP FOR MORE THAN 60 SECONDS OUTSIDE THE
WATER. IMMERSE THE PUMP AND ENERGISE THE UNIT. CHECK THE AMPERES DRAWN BY
THE UNIT. THE AMPERAGE SHOULD BE LESS THAN OR EQUAL TO THE FULL LOAD AMPS AS
INDICATED ON THE NAMEPLATE.

H.R.C. FUSES ARE RECOMMENDED STRONGLY AS PER TABLE BELOW

MAINS VOLTAGE AT SITE HRC FUSE RECOMMENDED

M304T M204T M154T

230 VOLTS 3 PHASE 25 AMPS 16 AMPS 10 AMPS
460 VOLTS 3 PHASE 16 AMPS 10 AMPS 10 AMPS
230 VOLTS 1 PHASE 30 AMPS 20 AMPS 20 AMPS

.

MOTOR PROTECTION

ADEQUATE MOTOR PROTECTION MUST BE PROVIDED FOR THE PUMPSET. THIS IS MOST
IMPORTANT. OVERLOAD, SHORT CIRCUIT & SINGLE PHASING PROTECTION ARE A VITAL FOR
ANY INSTALLATION. WE STRONGLY RECOMMEND PANEL BOARDS AVAILABLE WITH US
INCORPORATING ALL NECESSARY PROTECTION AS ABOVE. PLEASE CONTACT OUR SALES DEPT.
FOR PRICES AND DETAILS. WARRANTY IS VOID IF PUMPS ARE OPERATED WITHOUT
ADEQUATE MOTOR PROTECTION.

TROUBLE GUIDE CAUSE REMEDY

1.FUSES BLOWN. 1.REPLACE FUSES

2.CABLE DAMAGED 2.SHORTEN/REPLACE CABLE

PUMP DOES NOT START

4.BLOCKED IMPELLER. 4.CLEAN BOTTOM PARTS.

5.STATOR WINDING BURNT. 5.REPLACE STATOR.

1.BLOCKED IMPELLER. 1.CLEAN BOTTOM PARTS.

2.IMPELLER ROT. WRONG 2.SHIFT TWO PHASE CONN.

PUMP STARTS BUT STOPS.

VOLTAGE.

4.VOLTAGE TOO LOW/HIGH. 4.APPROACH POWER CO.

1.IMPELLER ROT.BACKWARD. 1.SHIFT TWO PHASE CONN.

2.PUMP WORN DOWN. 2.REPLACE IMPELLER.

PUMP GIVES TOO LITTLE

WATER.

4.PRESSURE HEAD TOO HIGH 4.INSTALL BIGGER PUMP.

TOO SMALL.

. 3 NO POWER. 3.CHECK SUPPLY

3.CONNECTED FOR WRONG 3.CHECK & RECONNECT.

3.LONG HOSE AND DIAMETER 3.CHECK PRESSURE LOSSES

MAINTENANCE REQUIREMENTS

THE SERVICE LIFE OF A SUBMERSIBLE PUMP DEPENDS MAINLY ON TWO THINGS: THE
DEPENDABILITY OF THE SEALING SYSTEM AND THE WEAR RESISTANCE OF THE PUMP ITSELF.

• CHECK LEVEL AND CONDITION OF THE OIL AT SERVICE EVERY SIX MONTHS. IF THE
OIL IS EMULSIFIED BY WATER THE SEAL PACKAGE MUST BE REMOVED FROM THE ROTOR
SHAFT FOR FURTHER ACTION.

• THE SHAFT SEAL SHOULD BE CHECKED FOR WEAR EVERY 2500 HRS. OF OPERATION. IF
SEAL FACES SHOW ANY SIGNS OF WEAR, THEY SHOULD BE RECONDITIONED/REPLACED.
REFER SHEET 4 FOR SERVICE OF THE SEAL PACKAGE.

• ENSURE THAT THE PUMP IS PROPERLY TRIMMED AT ALL TIMES. AS THE IMPELLER GETS
WORN OUT, THE CAPACITY OF THE UNIT WILL DROP, AND IT IS ESSENTIAL TO
MAINTAIN THE ORIGINAL CLEARANCE BETWEEN THE IMPELLER AND DIFFUSER TO OBTAIN
SATISFACTORY PERFORMANCE. THIS CAN BE ADJUSTED BY INSERTING METALLIC SHIMS
BEHIND THE IMPELLER HUB.

• PERIODICALLY (ONCE A MONTH) IT IS ADVISABLE TO DISMANTLE THE STRAINER AND TO
CLEAN THE IMPELLER CAVITIES. FREQUENTLY FOREIGN MATTER WILL BE DEPOSITED
WHICH SHOULD BE CLEANED FOR OPTIMUM PERFORMANCE.

.