Homa AK Series Installation, Operation And Maintenance Manual Download Page 9

ENGLISH | 09

•  Required Hardware – Mounting a regulating valve, 

pressure gauge and automated block valve be-

tween the water supply and the upper jacket port is 

required. The supply valve should be adjusted to al-

low the supply of water to exceed pump discharge  

pressure. This assures a positive flow of water into 

the pump chamber. The block valve should be auto-

mated to open whenever the pump is operated.

•  Start Up Requirements – This jacket must be vented 

at start up. Additional venting may be required if cool-

ing water supply is interrupted. 

3 - External Fluid Cooled - 

This option requires an external flow of water like in option 

2 above, but is used where dilution of the pumped product 

is not desirable. The supply of water is internally isolated 

from the pumped media. The water inlet is routed into the 

jacket’s lowest port and returned out of the highest port. 

This option does NOT allow water to enter the pumped 

media and pump must be ordered from factory this way.

•  Required Hardware – Mounting a regulating valve, 

pressure gauge and automated block valve between 

the water supply and the upper jacket port is re-

quired. The supply valve should be adjusted to allow 

for a good supply of water to flow through the jacket.  

The block valve should be automated to open when-

ever the pump is operated.

•  Start Up Requirements – This jacket must be vented 

at start up. Additional venting should not be required.

3.3.7. Volute

The volute may be available rubber-coated inside. Some 

volutes are supplied with a cleanout port to easily remove 

blockages. The pump may be equipped with a stationary 

wear ring which can be found in the intake port. This wear 

ring determines the gap between the impeller and the in-

take port. If this gap is too big, the performance of the 

pump decreases and it can lead to blockages. The rings 

can be replaced due to wear.

3.3.8. Impeller

M:

Enclosed single channel impeller, for liquids containing  

impurities and sludge with solid particles or long fibres.

K:

Enclosed multi channel impeller, for liquids containing  

impurities and sludge with solid particles.

V:

Vortex impeller, for liquids containing a high level of  

impurities or fibrous matter and containing gas.

4. Package, Transport, Storage

4.1. Delivery

On arrival, the delivered items must be inspected for dam-

age and a check made that all parts are present. If any 

parts are damaged or missing, the transport company or 

the manufacturer must be informed on the day of delivery. 

Any claim made at a later date will be deemed invalid. 

Damage to parts must be noted on the delivery or freight 

documentation.

4.2. Transport

Only the appropriate and approved fastening devices, 

transportation means and lifting equipment may be used. 

These must have sufficient load bearing capacity to en-

sure that the product can be transported safety. If chains 

are used they must be secured against slipping.

The personnel must be qualified for the tasks and must 

follow all applicable national safety regulations during the 

work. The product is delivered by the manufacturer/ship-

ping agency in suitable packaging. This normally precludes 

the possibility of damage occurring during transport and 

storage.

Never lift the pump by its power cable! 

Ne jamais soulever la pompe par son câble d‘alimen-
tation 

!

4.3. Storage

Newly supplied products are prepared that they can be 

stored for 1 year. The product should be cleaned thorough-

ly before interim storage.

The following should be taken into consideration for 

 

storage:

•  Place the product on a firm surface and secure 

it against falling over. Submersible mixers and aux-

iliary lifting devices should be stored horizontally,  

submersible sewage pumps and submersible motor 

pumps should be stored horizontally or vertically. It 

should be ensured that they cannot bend if stored 

horizontally.

Falling Hazard!
Never leave the pump unsecured! 

Risque de chute !
Ne jamais laisser la pompe sans surveillance !

•  The product has to be stored in a place free from 

vibrations and agitation to avoid damage to the ball 

bearings. 

•  The device should be stored in a dry place with-

out temperature fluctuation.

•  The product may not be stored in rooms where 

welding work is conducted as the resulting gases and 

radiation can damage the elastomer parts and coat-

ings.

•  Be careful to not remove or damage the corro-

sion resistant coatings.

•  Any suction or pressure connections on products 

should be closed tightly before storage to prevent im-

purities.

Summary of Contents for AK Series

Page 1: ...Installation Operation and Maintenance Manual AMS AM X AV X AK X 60 Hz Version 11 2021 No 00507610 01 ...

Page 2: ... 4 1 Delivery 09 4 2 Transport 09 4 3 Storage 09 5 Installation and initial commissioning 10 5 1 General 10 4 4 Returning to the supplier 10 5 2 Installation 11 5 3 Use of chains 13 5 4 Initial operation 14 5 5 Preparatory work 14 5 7 Direction of rotation 16 5 8 Motor protection 16 5 9 Variable Frequency Drives 16 5 10 Types of startups 16 6 Maintenance 17 6 1 General 17 6 2 Maintenance intervals...

Page 3: ...he pumped fluid Please observe the values for the maximum submersion depth and the minimum water coverage dry installation type In this installation type the product is installed dry i e the pumped fluid is delivered to and discharged via a pipeline system The product is not immersed in the pumped fluid Please note that the surfaces of the product become very hot transportable installation type Wi...

Page 4: ... must be interrupted immediately if weather conditions worsen These instructions must be strictly observed Non observance can result in injury or serious damage to property This product may contain chem icals known to the State of California to cause cancer and birth defects or other reproductive harm www p65warnings ca gov Ces instructions doivent être strictement respectées Le non respect de cet...

Page 5: ... d entretien ou de réparation éteignez la machine et laissez les pièces mobiles s arrêter 2 6 Safety and control devices Our products are equipped with various safety and con trol devices These include for example moisture sensors and temperature sensors These devices must never be dismantled or disabled Equipment such as thermo sen sors float switches etc must be checked by an elec trician for pr...

Page 6: ...e in an expected case of mal function in which the enclosure fails as the pump cannot suck up pumping medium nor its containing solids In the ventilated shaft the explosion protected submersible mo tor pumps are drained via a drain system with two guide tubes of galvanized steel between their guide claws of grey cast iron that guide into the automatic coupling ar rangement The guide velocity with ...

Page 7: ...l Silicon carbide Silicon carbide Mechanical shaft seal Silicon carbide Silicon carbide Bearing One grooved ball bearing above double row type angular ball bearing below 3 3 3 Monitoring Equipment The unit is equipped with various types of monitoring safe ty equipment The following table shows an overview of the options available The options may vary depending on the size of the pressure outlet Mo...

Page 8: ...ump Optional leak detectors can be installed as follows Stator Chamber installation Probe placed in bottom of stator housing to detect presence of water in the chamber Stator or Motor cap installation Probe used to detect the presence of water only into the stator housing or motor cap terminal board Closed loop cooling Installation Probe placed in sta tor housing to detect the presence of liquid i...

Page 9: ...aining a high level of impurities or fibrous matter and containing gas 4 Package Transport Storage 4 1 Delivery On arrival the delivered items must be inspected for dam age and a check made that all parts are present If any parts are damaged or missing the transport company or the manufacturer must be informed on the day of delivery Any claim made at a later date will be deemed invalid Damage to p...

Page 10: ...efore start up the filling levels oil cooling fluid etc of the individual products should be checked and topped up if required Please refer to the machine data sheet for specifications on filling Damaged coatings should be repaired immediately Only a coating that is completely intact fulfils the criteria for intended usage If these rules are observed your product can be stored for a longer period ...

Page 11: ...robe cable to pump body and power ca ble with tyraps before installing pump 5 2 Installation Risk of falling When installing the pump and accessories work is carried out next to wet well Carelessness or wear ing the wrong shoes can lead to falling This is life threatening Take all safety precautions to prevent this Risque de chute Lors de l installation de la pompe et des acces soires les travaux ...

Page 12: ...he guide rails bracket insert them into the guide rails and fasten the bracket The guide rails must be positioned with no play at all otherwise vibration will occur during op eration of the pump Clean the wet well of any solid material debris stones etc before commissioning Mount the guide claw on the pump dis charge thread or flange connection Ensure that the rubber profile seal is correctly seat...

Page 13: ...e and fitting hardware It is also recommended that a length of hose be attached to the valve and routed back to the sump Pumps with cooling jackets must be vented The screw plug 903 02 must be removed and replaced with the supplied vent valve Les pompes avec chemise de refroidissement doivent être ventilées Le bouchon à vis 903 02 doit être retiré et remplacé par la valve de ventilation fournie No...

Page 14: ...achine data sheet If a hose is used on the discharge side it should be flushed before use with fresh water so that no depos its cause blockages For wet installation the wet well must be cleaned The pressure and suction side pipe systems are to be clean and all valves are to be opened If the pump is jacketed with media cooling the jacket must be completely bled of air i e it must be com pletely fil...

Page 15: ...onductors for each leg of the circuit With either system the seal probe leads must be wired into a control circuit provided in the control panel This control circuit must energize the probe with a regulated power source and sense the closed cir cuit in event of water intrusion Indication and alarm func tions must also be provided in the control circuit Please see control panel wiring diagram for s...

Page 16: ...0 or similar national regulations If the equip ment is connected to power grids where problems often occur we recommend the additional use of protective devices e g overvoltage protection or under voltage pro tection or phase failure relays lightning protection etc When connecting the machine the local and legal require ments must be adhered to 5 9 Variable Frequency Drives Special considerations ...

Page 17: ... machine After work ing on the machine all cleaning materials and tools should be removed from it All materials and tools should be stored in an appropriate place Operating supplies such as oil and lubricants must be collected in appropriate vessels and proper ly disposed Appropriate protective clothing is to be worn for cleaning and maintenance jobs Only lubricants expressly recommended by the ma...

Page 18: ...This may be the result of defective shaft seals In this case the condition of the shaft seals should be checked by a HOMA Service shop Oil type Mineral Oil Used oil has to be disposed according to the existing envi ronmental rules and regulations Functional inspection of safety and control devices Monitoring devices are temperature sensors in the motor oil chamber monitors motor protection relays ...

Page 19: ...s M20 201 5 ft lbs 364 5 ft lbs 7 2 Changing the impeller and volute Changing the impeller and the volute Loosen and remove the screws holding the volute to the oil chamber Secure and remove the volute from the oil chamber with suitable equipment e g hoisting gear Place on a secure base Fasten the impeller with suitable equipment loosen and remove the impeller fastening cylindrical screw with sock...

Page 20: ...gainst frost Place it down vertically onto a firm foundation and se cure it against falling Support the cable at the cable entry assembly to help avoid a permanent deformation Protect the ends of the electric power cable from moisture Protect the machine from direct sunshine as a pre ventive measure against brittleness in elastomer parts and the impeller and casing coating When storing the machine...

Page 21: ... of the trigger with the technical speci fications and adjust it if necessary Increased power consumption due to major voltage drop Have an electrician check the voltage on each phase and rewire if necessary Excessive voltage differences on the three phases Have a specialist inspect the connection and the switching system and correct it as necessary Incorrect direction of rotation Swap the 2 phase...

Page 22: ...parts Defective motor bearing Contact the factory The machine is installed with mechanical strain Check the installation use rubber spacers if necessary Mechanical shaft seal leaks sealing chamber monitor reports fault and switches the machine off Cause Solution Increased leakage when running in new mechanical shaft seals Change the oil Defective sealing chamber cables Replace the moisture sensors...

Page 23: ... of the pump agitator it may be that no separate control cable is used In this case monitoring devices are run from the power cable Cable identification Motor Monitoring system Monitoring in winding T1 T2 Temperature limiter 2 switches in series T1 T4 Temperature controller 2 switches in series T1 T2 T3 Temperature limiter and controller K1 K2 PTC Thermistor 3 thermistors in series PT1 PT2 3 x PT1...

Page 24: ...HOMA Pump Technology 390 Birmingham Blvd Ansonia CT 06401 Phone 203 736 8890 Fax 203 736 8899 e Mail info homapump com Internet www homapump com Version 11 2021 ...

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