Page 1
Jets™ 25MBA Vacuumarator™ pump
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Product No. 200025004
Technical Data
Tel. +47 70 03 91 00
www.jetsgroup.com
Doc. Rev.: 22 (2021-06-08)
Vacuumarator™ pumps are the most compact efficient and reliable
vacuum generators available for vacuum sanitary systems. The
pump creates vacuum, macerates sewage and discharges in one
single pass operation.
Features:
● Highly efficient in transporting wastewater
● Small footprint and low weight allows for quick and flexible
installation
● In line installation - direct discharge to sewer, STP (Sewage
Treatment Plant) or collecting tank
● Multiphase design - pumps any combination of air, black and
grey water
● Low energy consumption
● High quality – low lifecycle cost
Capacity 26 m³/h (ACMH) at 500 mbar abs. 60 Hz
(50% Vacuum)
Back Pressure Max. 0.3 bar
Outside Dimensions 702 x 198 x 278 mm (LxWxH)
Connection Inlet DN50
Connection Outlet DN32
Protection Class IP 55
Insulation Class 155(F) to 130(B)
Duty S1-100%
Ambient Temperature Range +0 °C - 55 °C
Humidity Class F / 95%
Approvals Motor - CSA Approved
Net Weight 66.50 kg
Operating Data
Frequency // 60 Hz
Voltage // Δ198-218 V
Nominal Current // 12.9 A
Speed CCW // 3435 rpm
Power Output // 3.45 kW
Power Factor // 0.88 cos ɸ
Efficiency // 84.5%
Heat Dissipation Approx. 0.6 kW
Disclaimer
Note: Our products and services are offered and sold subject to Jets
Vacuum AS’ General Sales Conditions, copies of which will be
furnished upon request. Information provided herein is solely for
information purposes, does not constitute any warranty or
representation of any kind and is subject to change without notice.
We strive to reproduce product colors reasonably accurate. Without
prior written approval, this document or any part of may not be
reproduced in any form. Jets™, Vacuumarator™, Helivac™, VC™,
VOD™, CVS™ and Softsound™ are trademarks and/or registered
trademarks of Jets. © Jets AS. All rights reserved.
1
Page 2
Jets™ 25MBA Vacuumarator™ pump
Product No. 200025004
Tel. +47 70 03 91 00
www.jetsgroup.com
Doc. Rev.: 22 (2021-06-08)
2
Page 3
Jets™ 25MBA Vacuumarator™ pump
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Product No. 200025004
Tel. +47 70 03 91 00
www.jetsgroup.com
Doc. Rev.: 22 (2021-06-08)
Components
Cover
1
|
O-ring
2 |
Suction Chamber, Complete
3 |
Screw, M10x20
4 |
Macerator
5
|
Bolt, M8x35
6 |
Washer, M8
7
|
Stationary Knife Holder
8
|
Setscrew M8x16
|
9
O-ring
10
|
Sleeve
11 |
End Flange
|
12
Bolt, M12x220
13 |
O-ring
14 |
Rotor
15 |
Rotor Housing
16 |
Pressure Chamber
17
|
Key
18 |
Spacer Sleeve
|
19
Flange for Shaft Seal
20
|
Shaft Seal ø35mm
21
|
Sealing Ring
22
|
Screw, M6x40
23 |
Split Sleeve, ø5x20mm
24
|
Motor Flange
25 |
Shaft with Rotor and Ball Bearing
26 |
Stator
27 |
28
29 |
30 |
31
32 |
33
34 |
35
36
37
38
39 |
Stator // 60 Hz // Δ198-218 V
Spacer Sleeve
|
End Cover
Screw, M6x30
Fan
|
Fan Cover
Flap valve, housing
|
Rubber Flap
Plate for flap valve
|
Lock nut, M6
|
Nut for flap valve
|
Flange
|
O-ring
Additional Components
023280050*
037219260*
023280041*
036207621*
020203100*
036280101*
036202300*
021201000*
036202400*
037219220*
023280111*
023200210*
036202010*
037219200*
021265401*
023219000*
023219100*
021201800*
023260400*
023280030*
038218901*
037260700*
036503400*
020207800*
031150252*
023280102*
031000310*
036291510*
031261031*
036312728*
031261111*
031261041*
023280062*
037302100*
023280091*
036232920*
023280070*
023280080*
037219280*
Ball Bearing
26.2
|
Macerator Alignment Tool 25MBA
|
Motor
M |
// 60 Hz // Δ198-218 V
038213500
816100118
031002504
* Component/s avaliable as replacement parts.
Nut, M6
3.1
|
Setscrew M6x25
3.2 |
Ball Bearing
|
26.1
036901200
036202401
038223700
3
Page 4
Jets™ 25MBA Vacuumarator™ pump
Product No. 200025004
Dimension Drawings
Tel. +47 70 03 91 00
www.jetsgroup.com
Doc. Rev.: 22 (2021-06-08)
Measurements given in mm.
4
Page 5
Jets™ 25MBA Vacuumarator™ pump
Product No. 200025004
Doc. Rev.: 22 (2021-06-08)
Tel. +47 70 03 91 00
www.jetsgroup.com
Function and Principle
Description
Flap Valve: Facilitates flow into the pump, seals vacuum in the pipes and prevents backflow.
Macerator: The macerator grinds any solids to a fine pulp.
Helical Screw: The helical screw uses liquid to create a seal facilitating vacuum in the pump housing.
Shaft: The shaft is the connecting factor between the macerator, helical screw and motor. It supports and rotates the helical screw and macerator.
Motor: Supplies power to support pump function.
Fan: The fan provides cooling for the motor.
Inlet: Flow inlet from the source into the pump.
Outlet: Flow outlet from the pump to the pipe connection/discharge.
Explanation of the Vacuumarator™ Pump Function
℮ Inlet
ℯ Flap Valve
ℰ Macerator
ℱ Helical Screw
Ⅎ Motor
ℳ Outlet
ℴ Fan
Normal Position - Pump Inactive
● Motor Ⅎ - INACTIVE
Fan ℴ - INACTIVE
● Helical Screw ℱ - INACTIVE
Macerator ℰ - INACTIVE
● Flap Valve ℯ - CLOSED
Running Conditions - Activated Sequence
● Motor Ⅎ - ACTIVATED
Fan ℴ - ACTIVATED
● Helical Screw ℱ - ACTIVATED
Macerator ℰ - ACTIVATED
● Inlet ℮ - FLOWS
● Flap Valve ℯ - OPENS
● Outlet ℳ - FLOWS
● Motor Ⅎ - DEACTIVATED
Fan ℴ - DEACTIVATED
● Helical Screw ℱ - DEACTIVATED
Macerator ℰ - DEACTIVATED
● Flap Valve ℯ - CLOSES
● Inlet ℮ - FLOW STOPS
Outlet ℳ - FLOW STOPS
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Page 6
Jets™ 25MBA Vacuumarator™ pump
Product No. 200025004
Doc. Rev.: 22 (2021-06-08)
Tel. +47 70 03 91 00
www.jetsgroup.com
Pre-Installation
The following installation information is only applicable for single pump installations. If a Vacuum Unit is supplied by Jets Vacuum AS, please refer
to the Vacuum Unit information.
Installation Site Considerations
1. Installation space requirements can be determined from the dimension drawing.
2. Proper lifting devices should be available for installation, service and maintenance.
3. The location of the installation should have sufficient clearance around the pump to allow for ventilation and heat dispersal.
4. Select a mounting plate which will minimize vibration and torsion of the baseplate. A solid and sturdy base is necessary.
5. To ease service of the pump we recommend installing a shut-off valve on both the inlet and the outlet of the pump (not included in product
delivery).
6. Ensure that all safety information has been read and precautions have been taken.
7. Installation must comply with all local, state and federal safety codes and practices.
Installation
Lifting Instructions
1.10 Warning
Failure to properly lift and support equipment can result in serious physical injury and/or equipment damage.
The pump must be lifted, moved and transported in a horizontal position.
Lifting precautions:
● Total weight
● Center of gravity
● Maximum outside dimensions
Generally, it is recommended that the pump be transported on a pallet or similar using a forklift or with appropriate lifting equipment. For safe lifting
with a crane, it is recommended to use appropriately dimensioned and certified straps, slings or belts.
6.10 Warning
• Do not stand under or pass beneath an elevated load.
• Do not stand within the swing radius of the lifting equipment.
• Never leave the lifting equipment unattended with an elevated load.
• Wear proper PPE (hardhat, safety shoes and gloves should be worn as a precaution when lifting the load).
• Keep bystanders at a safe distance.
• Never use two lifting devices in tandem to lift the load.
• If the person receiving this technical information will not be the user of the lifting equipment, forward these instructions to the operator.
• If there is any doubt as to the operation or safety of the equipment, do not lift the load.
• Failure to follow these instructions could result in damage to equipment, injury or death.
Prior to Lifting a Vacuumarator™ Pump
Drain the pump of all liquid. Rinse and plug any openings to prevent spillage. For instructions regarding draining the pump, refer to the service and
maintenance information for the pump.
Correct Vacuumarator™ Pump Lifting Method
The following is Jets Vacuum AS recommended lifting method. The
following method has been fully tested and adopted as the most
suitable means of lifting the pump.
Position the straps as illustrated. Using appropriately dimensioned
lifting equipment, slowly raise the pump from the surface.
6
Page 7
Jets™ 25MBA Vacuumarator™ pump
Product No. 200025004
Installation Steps
1. Do not remove the protective covering on the pumps inlet and outlet until connecting the pipes.
2. Flush the piping system and any connections to the pump to ensure that all foreign objects have been removed prior to connection.
3. The piping system should be leak tested before connecting the pump.
4. Connect the inlet pipe to the suction side of the pump.
5. Connect the outlet pipe to the pressure side of the pump.
6. Remove the fan cover. Manually rotate the shaft by hand turning the fan. Ensure that all moving parts rotate freely without obstruction. Re-fit
the fan cover.
7. Ensure that the pump is placed on a flat surface and that all four fundament flanges are in contact with the surface.
8. Secure the pump to the base plate.
Electrical Installation
Prior to connecting any electrical wiring, ensure that all electrical safety warnings are read and understood. Take the necessary precautions to
prevent accident, injury or damage to equipment.
Electrical connection details are located on the motor name plate.
3.1 Warning
All wiring should be performed by a licensed or certified electrician.
3.28 Warning
Never work on the equipment when power is applied.
Doc. Rev.: 22 (2021-06-08)
Tel. +47 70 03 91 00
www.jetsgroup.com
Electrical Connection:
1. Ensure that the pump is protected against overload.
2. When connecting the pump, be sure to ground the motor.
3. Connect the electrical wiring as per the connection details on the products name plate.
4. Check that the rotation direction of the shaft is correct in relation to the rotation direction on the serial number label. Note that incorrect
rotation may result in damage to the pump.
Electrical Connection Diagram
M 4 = 0.8 - 1.2 Nm
M 5 = 1.8 - 2.5 Nm
M 6 = 2.7 - 4.0 Nm
M 8 = 5.5 - 8.0 Nm
M10 = 9.0 - 13.0 Nm
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Page 8
Jets™ 25MBA Vacuumarator™ pump
Product No. 200025004
Doc. Rev.: 22 (2021-06-08)
Tel. +47 70 03 91 00
www.jetsgroup.com
Operation
Startup Procedures
Following installation, the following standard startup procedures are to be carried out to ensure pump function.
7.16 Warning
Do not run the pump dry. Running the pump without sufficient water will result in damage to equipment. Ensure that a sufficient water level is maintained.
1. Ensure that all obstructions have been removed.
2. Carry out a visual inspection of the pump ensuring no damage has occurred during installation.
3. Look through the plexiglas to check that there are no obstructions.
4. Check that the pump is filled with water. If not, remove the plug on the side of the suction chamber. Fill the pump with water. Re-fasten the
plug.
5. Ensure that the inlet and outlet pipes are securely fastened.
6. Ensure that the electrical connections are according to the motor name plate.
7. Remove the fan cover. Manually rotate the shaft by hand turning the fan. Ensure that all moving parts rotate freely without obstruction. Re-fit
the fan cover.
8. Turn on the power supply.
9. Check the rotation direction is in accordance with the serial number label. Observe the rotation on the motor end of the pump.
10. Check that the pump generates vacuum by operating the system (i.e. flush the toilet).
11. If abnormal operation, vibration or noise is experienced, shut down the pump immediately. Refer to the troubleshooting guidelines.
Startup Testing
1. Leak test the pump by filling the pump with water and checking for leaks. Any indication of leaking should be fixed using approved methods by
a qualified person. See the products service and maintenance information for details. If no leak is found the pump is deemed acceptable.
2. Test the amperage to ensure that results are within the given readings on the motor name plate.
Service and Maintenance
Intended Use
To maintain the expected operational lifetime, the following must be adhered to.
1. Do not pump liquids containing cleaners that create foam.
2. Minimize pumping of liquids containing caustic cleaners (such as drain cleaner) or bleach.
3. Minimize pumping of chlorine or corrosive cleaners.
Mild soap or biological cleaners are recommended. See Jets Vacuum AS product range for suitable cleaning solutions.
Scale Build Up
Pumps used for pumping wastewater are subject to mineral scale build-up. Regular follow-up during maintenance intervals is recommended based
on pump usage. Mineral scale build-up, if left untreated, may affect the performance of the pump.
To treat mineral scale build-up, it is necessary to flush a suitable descale solution through the pump. Jets™ descale products are recommended.
Annual Descaling of the Vacuumarator™ Pump
1. Shut down the pump. Follow step 1 to 13 under the Shutting down the Vacuumarator™ pump.
2. Re-attach all the parts that were removed to drain the pump.
3. Fill the pump with Jets™ Descale Gel, until it overflows the inlet of the pump.
4. Allow to react for a minimum of 24 hours.
5. Connect the inlet pipe to the suction side of the pump.
6. Connect the outlet pipe to the pressure side of the pump.
7. Open the valves on the inlet and the outlet of the pump, if installed.
8. Connect the power to the pump and set it into operation.
9. Flush the pump with water through the connection on the side of the suction chamber or through the flap cleaning valve.
Cleaning or Flushing the Vacuumarator™ Pump
Fresh water supply may be connected to the suction chamber on the pump to flush and clean, when necessary, and to fill the pump with water
after service.
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Jets™ 25MBA Vacuumarator™ pump
Product No. 200025004
Freezing Conditions
For locations where freezing may occur, frost protection measures must be taken. For further information contact Jets Vacuum AS or your nearest
supplier.
The following must be adhered to when the pump is subjected to freezing conditions.
1. In use: Feed appropriate quantities of suitable antifreeze solution into the system.
2. Storage: Drain the pump of liquid. See instructions under "Shutting Down the Pump".
Caution: Never use automotive antifreeze (ethylene glycol) in the system.
Note: Failure to adequately protect the pump from damages may result in void of your warranty coverage. Jets Vacuum AS reserves the right to
deny any warranty claim submitted if the claim is caused by freezing damage.
Service and Maintenance Assistance
Jets Vacuum AS provides all customers with 24 hour worldwide technical assistance. For urgent matters, please contact Jets Vacuum AS Service
Department at +47 70 03 91 00. For other matters, please contact your nearest authorized supplier.
When making enquiries, please have the following information available.
● Order Number
● Pump model number
● Pump serial number (the serial number identification is located on the label applied to the pump)
● Part number, quantity
Doc. Rev.: 22 (2021-06-08)
Tel. +47 70 03 91 00
www.jetsgroup.com
Shutting Down the Vacuumarator™ Pump
3.28 Warning
Never work on the equipment when power is applied.
1.4 Caution
Safety equipment (PPE) necessary for the prevention of accidents at the installation and operating site must be provided in accordance with local regulations.
When taking a pump out of service, the following must be adhered to.
1. Run freshwater through the pump before shutting it down. This is done to reduce the risk of transmission of parasitic organisms.
2. Disconnect the power to the pump.
3. Disconnect the power cable, earthing cable and temperature sensor, if installed.
4. Close the valves on the inlet and the outlet of the pump, if installed.
5. Position a suitable container under the pumps suction chamber.
6. Unfasten the screws holding the cover in place.
7. Carefully drain the suction chamber. Note that it is not possible to drain it completely.
8. Position the container under the pumps pressure chamber.
9. Unfasten the plug at the bottom of the pressure chamber and drain it.
10. Disconnect the inlet pipe from the suction side of the pump.
11. Disconnect the outlet pipe from the pressure side of the pump.
12. Unscrew the pump from the baseplate/unscrew any installed vibration dampers.
13. If it is necessary to transport the pump, follow the lifting instruction guidelines.
Service Tools
Service Jig:
It is strongly recommended to use a service jig when performing service on the pump.
Note: If the pump is placed vertically on the fan cover, the cover can break and the pump can fall over.
Macerator Allignment Tool:
It is recommended to use a macerator allignment tool when performing service on or replacing the macerator.
Contact Jets Vacuum AS or your local approved supplier for further details.
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Page 10
Jets™ 25MBA Vacuumarator™ pump
Product No. 200025004
Service and Maintenance - Disassembly Instructions
Tel. +47 70 03 91 00
www.jetsgroup.com
Doc. Rev.: 22 (2021-06-08)
1
Turn off and disconnect the power to the pump.
3.2 Warning
Never work on the equipment when mains power is applied.
For equipment fitted with a frequency converter: After disconnecting the input
power, always wait for 5 min to let the intermediate circuit capacitors
discharge before you start working on the equipment.
3
Remove the screws holding the fan
cover (32) in place.
5
Remove the fan (31).
2
Empty the pump of wastewater.
4
Remove the fan cover (32).
6
It is strongly recommended to
use a service jig (not included in
delivery) to stabilize the pump
during maintenance. The service
jig prevents the pump from
damage and falling over. Contact
your Jets™ agent for details.
7
With the service jig in place, turn the
pump and place motor side down on
a flat surface.
9
Remove the suction chamber ℰ.
Gentle use of a rubber mallet may be
required.
11
Remove the center hex screw from
the rotating knife.
Position the service jig on the
shaft.
8
Remove the suction chamber by
loosening the four hex screws ℱ
between the suction chamber
and the end flange ℹ.
10
Remove the O-ring ℷ.
12
Remove the rotating knife and
split sleeve.
2.11 Warning
Beware of sharp
edges.
10
Page 11
Jets™ 25MBA Vacuumarator™ pump
Product No. 200025004
Tel. +47 70 03 91 00
www.jetsgroup.com
Doc. Rev.: 22 (2021-06-08)
13
Remove the four screws (M5x12)
securing the stationary knife in place.
15
Remove the four stay bolts ℺.
17
Remove the O-ring ℻.
14
Remove the stationary knife from
the assembly.
16
Remove the end flange ℹ from
the rotor housing ℽ.
18
Remove the rotor housing ℽ.
19
Remove the rotor ℼ.
21
Remove the pressure chamber ℾ. A
rubber mallet may be required.
23
Remove the O-ring ℻.
20
Remove the O-ring ℻.
22
Remove the key ℿ.
24
Remove the spacer sleeve ⅀.
11
Page 12
Jets™ 25MBA Vacuumarator™ pump
Product No. 200025004
Tel. +47 70 03 91 00
www.jetsgroup.com
Doc. Rev.: 22 (2021-06-08)
25
Remove the rotating part of the shaft
seal (21B).
Important: Do not touch ceramic
surfaces on the shaft seal. Residue
will affect operation.
27
Remove the stationary part of the
shaft seal (21A) from the flange ⅁.
29
Remove the cover ℮ from the
suction chamber.
26
Remove the flange ⅁.
28
Remove the eight nuts (3.1) from
the suction chamber.
30
Remove the O-ring ℯ from the
cover ℮.
31
Remove the nut (37), the flange (38)
and the O-ring (39).
33
Remove the two nuts (36), the plate
(35) and the rubber flap (34) from the
flap valve (33).
35
Remove the stator (27) and the
spacer sleeve (28).
32
Remove the flap valve from the
suction chamber ℰ.
34
Remove the four screws (23)
holding the motor flange.
36
Remove the motor flange (25).
Gentle use of a rubber mallet
may be required. Remove the
sealing ring (22).
12
Page 13
Jets™ 25MBA Vacuumarator™ pump
Product No. 200025004
37
Remove the two ball bearings (26.1)
and (26.2) from the shaft (26), using
a bearing puller.
Service and Maintenance - Assembly Instructions
● All parts must be clean.
● Use water when assembling the shaft seal.
● Always use new O-rings. Ensure that all O-rings are in the correct position.
● During assembly, it is recommended to replace the ball bearings.
● Before tightening the bolts, the pump should be placed on a flat surface.
● Tighten bolts in a cross formation.
● Lubricant is not to be used during assembly of the pump unless stated.
● Control check all parts for damage and replace parts if necessary.
● Ensure that Loctite® or an equal type of quality locking compound is applied at the points indicated in the assembly procedure.
Doc. Rev.: 22 (2021-06-08)
Tel. +47 70 03 91 00
www.jetsgroup.com
1
Position the ball bearings (26.1) and
(26.2) on the shaft (26). Heating is
required.
3
Place the spacer sleeve (28) and the
stator (27) in position on the shaft.
5
It is strongly recommended to use a
Service Jig (not included in delivery)
to stabilize the pump during
maintenance. The Service Jig
prevents the pump from damage and
falling over. Contact your Jets™
agent for details.
Position the service jig on the shaft.
2
Insert the sealing ring (22) into
the motorflange (25). Insert the
shaft (26).
4
Fasten the screws securing the
flange (23).
6
With the service jig in place, turn
the pump and place motor side
down on a flat surface.
7
Mount the rubber flap (34), plate for
flap valve (35) and the two nuts (36)
on the flap valve (33).
8
Position and secure the flap
valve in the suction chamber ℰ.
13
Page 14
Jets™ 25MBA Vacuumarator™ pump
Product No. 200025004
Tel. +47 70 03 91 00
www.jetsgroup.com
Doc. Rev.: 22 (2021-06-08)
9
Place the O-ring (39) and the flange
(38), secure the nut (37).
11
Place the cover ℮ on the suction
chamber.
13
The shaft seal (21) consist of two
parts, the stationary part (A) and the
rotating part (B). Always mount the
shaft seal with the graphite/glossy
sides facing toward each other.
10
Place the O-ring ℯ in the guiding
strip on the cover ℮.
12
Secure the cover to the suction
chamber ℰ. Cross tighten the
nuts (3.1) with 3 Nm torque.
14
Position the stationary part of the
shaft seal (21A) on the flange ⅁,
with the glossy side facing
upwards.
15
Position the flange ⅁, with the
stationary part of the shaft seal
inserted, on the shaft.
17
Slide the spacer sleeve ⅀ into
position on the shaft.
19
Insert the key ℿ.
16
Slide the rotating part of the shaft
seal (21B) into position on the
shaft. Use care to ensure that the
position is correct (i.e. fully
inserted).
18
Position the O-ring ℻ on the
flange.
20
Slide the pressure chamber ℾ
on the shaft.
14
Page 15
Jets™ 25MBA Vacuumarator™ pump
Position the rotor ℼ on the shaft.
Product No. 200025004
Tel. +47 70 03 91 00
www.jetsgroup.com
Doc. Rev.: 22 (2021-06-08)
21
Position the O-ring ℻ on the
pressure chamber.
23
Fit the rotor housing ℽ.
25
Position the end flange ℹ on the
rotor housing ℽ.
22
24
Insert the O-ring ℻.
26
Tighten the four stay bolts ℺ in a
cross formation.
27
Place the stationary knife in the
assembly.
2.11 Warning
Beware of sharp edges.
29
Insert the rotating knife and split
sleeve in the assembly.
It is recommended to use an
alignment tool when fastening the
rotating knife. Contact Jets Vacuum
AS or your local approved supplier
for alignment tool details.
2.11 Warning
Beware of sharp edges.
31
Turn the center hex screw on the
macerator to ensure that all parts
rotate freely without obstruction.
Visually check that there is a
clearance between the rotating knife
and the stationary knife.
28
Secure the stationary knife in
place with the four screws
(M5x12) using Loctite® 222 or an
equal quality locking compound.
30
Apply locking compound to the
hex bolt and secure it with 30Nm
torque. Use Loctite® 243 or an
equal quality locking compound.
32
Position the O-ring ℷ.
15
Page 16
Jets™ 25MBA Vacuumarator™ pump
Product No. 200025004
Tel. +47 70 03 91 00
www.jetsgroup.com
Doc. Rev.: 22 (2021-06-08)
33
Position the suction chamber ℰ.
35
Insert the fan (31).
37
Secure the fan cover (32).
34
Secure the suction chamber by
tightening the four hex screws ℱ
in a cross formation.
Remove the service jig and place
the pump on a flat horizontal
surface.
36
Assemble the fan cover (32).
Scheduled Maintenance
Interval Action Note
Weekly Carry out a visual inspection of the
pump.
Once per year (annually) Check the pump for mineral scale
build-up.
6000 running hours Replace the bearings on the motor.
Replace the shaft seal.
Inspect the pump, replace worn parts if
necessary.
Remove any foreign matter that may interfere with the
function of the pump.
Carry out descaling of the pump.
Troubleshooting
Problem Cause Action
The pump does not start. Clogged macerator. Remove the clogging.
Power failure. Check the power supply.
Motor circuit breaker tripped. Reset the motor circuit breaker and locate the cause.
Lack of vacuum in the system. Leakage in the vacuum pipes or
defective vacuum valve in the toilets or
interface tanks.
Detect leakage and repair.
Clogged macerator. Remove the clogging.
Build-up of mineral scale in the pipes
or the pump(s).
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Carry out descaling of the pipes and pump(s).
Page 17
Jets™ 25MBA Vacuumarator™ pump
Product No. 200025004
Tel. +47 70 03 91 00
www.jetsgroup.com
Doc. Rev.: 22 (2021-06-08)
Low vacuum or the pump is
continuously running.
Water is leaking from the pump. Defective shaft seal. Check and replace the shaft seal.
Frequent start and stop of the pump. The flap valve does not close properly. Clean the flap valve, or replace it if it is damaged.
Tripped motor circuit breaker. Overload of the electric motor. Detect the reason for the overload and repair.
Running time alarm (if installed). Preset allowed running time has
Lack of liquid in the pump. Fill the pump with water. Check for leakage and repair.
Clogged macerator. Remove the clogging.
Foaming in the pump due to excessive
soap or similar in the system.
Leakage in the vacuum pipes or
defective vacuum valve in the toilets or
interface tanks.
exceeded.
Run freshwater through the pump until the foaming
disappears.
Detect leakage and repair.
Check if there are leakages in the system, or adjust allowed
running time if required.
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