Nilfisk FOOD MU421 Hybrid P Mainstation Owner’s Manual

Hybrid-P
MU421, MU422.

Directions for use (Original)
Declaration of Conformity
Hybrid

We Nilfisk FOOD, declare under our sole responsibility that the products Hybrid-P MU, to which this declaration relates, are in conformity with these Council directives on the approximation of the laws of the EC menber states:
Machinery Directive (2006/42/EC).
– EN 60335-2-79:2012
EMC Directive (2014/30/EU)
– EN 55014-1:2021
– EN 55014-2:2015
– EN 61000-3-2:2014
– EN 61000-3-3.:2013
Technical file responsible:
Flemming Asp
Nilfisk FOOD
Blytaekkervej 2
9000 Aalborg, Denmark
Signature:

Flemming Asp
R & D Manager
Aalborg d. 09-05-2022

Symbols used in this document

| Read before Use
---|---
| Wear glasses when using the unit.
| Wear gloves and suitable clothing when using the unit.
| Note:
A potentially damaging situation.
Possible consequences: The product or something in its vicinity could be damaged. Prevention.
| Caution:
A dangerous situation.’Possible consequences: light or minor injuries. Can also be used in warn against damage to property
or other goods prevention.
| Warning :
A Potentially dangerous situation.
Possible consequences: Death or severe injury Prevention.
| anger:
A dangerous situation.’Possible consequences: Death or severe injury Prevention.
| Danger:
Risc of electric shock!
Possible consequences: Death or severe injury Prevention
| Hot Surfaces
Risc of burns!
Possible consequences: Severe injuries prevention

General information

Nilfisk Food congratulates you on your new low-pressure foam and sanitising cleaning equipment.
The equipment provides the latest standard of technology in low pressure cleaning equipment in your factory.
The equipment can be used for rinsing, foaming and application of disinfectants.
It is important that your operational staff read these directions for use prior to installation, start up and use of the equipment.

3.1. Identification Plate

1. Producer
2. Serial no
3.  Type
4. Date of production
5. Article no
6.  Maximum pressure
7. Supply voltage
8. Frequecy
9.  Maximum water consumption
10. Maximum temperature
11.  Current
12.  Weight

3.2. Supplier
Nilfisk FOOD
Blytækkervej 2
DK-9000 Aalborg, Denmark
Tel.: +45 7218 2000
CVR no. 6257 2213
www.nilfiskfood.com

3.3. Specifications

Technical Data|
---|---

Water

|

Unit

|

MU421-MU422

Max.Outlet pressure.| MPa (bar) [psi]| 2,5 (25)* [362]
Comsumption during rinsing.| L/min [gallon]| 30 [7.9]
Consumption during foaming.| L/min [gallon]| 8 [2.11]
Min. supply pressure.| MPa (bar) [psi]| 0,2 (2) [29]
Max. supply pressure.| MPa (bar) [psi]| 0,8 (8) [116]
Min. water supply.| L/min [gallon/min]| 120 [31.7]
Max. water temp.| °C/°F| 70/158
Pipe dimension inlet Ø| inch| 1.1/4“
Pipe dimension outlet Ø| inch| 1.1/4“
Compressed air| |
Min/max air pressure.| MPa (bar) [psi]| 0,5-1,0 (5-10) [72-145]
Compressed air consumption.| NL/min| 200
Pipe dimension inlet Ø| mm [inches]| 6 [0.2]
Electricity| |
Supply voltage.| V| 3/PE 400 Vac

±10%

Frequency.| Hz| 50/60 Hz

48 -0%..62 +0%

Motor load (kW)| kW| 5.5
| A| 14.2
Nominal current.| A| 20
Fuse.| mm2| 2.5
L1, L2, L3, PE| |
General| |
Sound level ISO 11202| dB| Below 70
IP class| IP| 55
Dimensions H x B x D| mm [inches]| 1310 x 560 x 400 [51x22x15]
Weight.| kg [lbs]| 112 [246]

• Pump pressure 20 +inlet pressure max. 25 bar
  I/O port specifications
  Maximum ratings:
  OUT1 and OUT2 relays:

Input Port (IN)

Overview and Use

The main station in the Hybrid range is a completely functioning hygiene and pumping station that supplies pressurised water to both its integrated hygiene point and to connected satellite hygiene stations. Therefore the main station must be supplied with: water in sufficient quantity, power, compressed air, detergent(s) and disinfectant. The station is then ready for hygiene duties.
The change between rinse and foam on the first injector is manual. To change to another injector/product the hose must be moved between the outlets.
The main station is fittted with a frequency controlled pump which ensures a constant working pressure independent of usage pattern.
Warning : Do not use the water from the system for applications other than cleaning.

Consumptions:
The unit is approved for the use of detergents and disinfectants.
Warning: Do not change the settings made or recommended by the supplier of the detergents!
Detergents are supplied via a User Pack system or from separate standard cans. Supply is also possible via piping systems.
Before installation and set up of the unit always read this instruction thoroughly. Always make sure to follow personal safty procedures for chemicals in connection with refilling procedures (product change), maintenance and repair. See also product label and MSDS sheet.

Safety instructions
Only professional service personel are allowed to carry out service and repairs on the unit.
Only instructed personel are allowed to operate the unit.

System Safety

In case of error/defect or service on equipment:

1. close the water supply
2.  close the air supply

5.1. Closing valve for water supply.
With this valve the unit can be isolated from the water supply. Further, a non-return valve is built in the block to prevent backflow of water.

5.2. Closing valve for air supply.
With this valve the unit can be isolated from the air supply. Two non-return valves for air are built in the unit to prevent backflow of air.

The air pressure regulation/gauge only works when the supply valve is open.
Wear glasses when using the unit.
Wear gloves and suitable clothing when using the unit.

5.3. Anticipated failures
Bursted air tube in unit:

• The unit must never be used without the front cover being mounted.

• The air closing valve on /in connection with the unit must always be closed when not in use.

• Air tube and fitting should be examined regularly and exchanged in case of visible damages.
  Breakdown of non-return valves for air and water:

•  The unit must never be used without the cover beeing mounted.

• Air and water closing valve on/in connection with the unit must always be closed when the unit is not in use.

•  After use of the unit all chemical non-return valves must be thorougly rinsed with clean water. Follow instructions in paragraph 9.4.

• Non-return valves for air and water should be examined minimum once a year by authorised personel for defects.
  Repair of unit:

• Do not attempt to repair a defect unit by yourself.
  Always contact an authorised service company.

• Block and mark any defect unit in order to avoid unintended use – se paragraf below regarding
  “Rest risk – Use of the unit”

• For safety reasons only use approved and original spare parts.

5.4. Rest Risk
Use of Unit:

• Never use the unit without prior instructions in use of the unit and its safety instructions. The instruction must be prepared by an educated/instructed personel.
• Never use the unit without having read the enclosed guide and safety instructions.
•  Always close water and air supply after use. Damaged unit:
• Never use the unit if leakages (air, water or chemical) are observed.
• Never use the unit if it is not possible to operate the closing valves and/or if it is not possible to select required operation. •
• Never use the unit if it has been dislodged for its  original place of mounting.

Installation

For safety reasons it is important to read all of the enclosed information before installation of this equipment. In addition, the legislation in force at the time of purchase must always be considered in connection with the installation and mounting of this equipment, no matter the contents of this manual.If there are matters of dispute please contact your dealer.

6.1. Noise
Sound level according to ISO 11202; Below 70 dB
6.2. Directions for Mounting

• The unit should be mounted in frostfree rooms only.
• The unit can be mounted on a wall or on a separate frame which may be installed in production areas and anchored to the floor.
• For mounting on walls, please note the following:
• The wall for mounting should be either a stable brick wall or a wall made of concrete.
• The delivered bracket should be secured to the wall by the enclosed screws and corresponding dowels
• The wall bracket should be mounted on the wall according to the above description and the station is hung on to the bracket. The hose and User Pack holders should be mounted afterwards. (See Installation/Mounting)

6.3. Transportation
For secure transportation of the unit, we recommend always to ensure, that the unit can not slide or tip.
The unit might have to be secured with straps.
Transportation of the unit only in horisontal position:
The unit must not be placed on the front where you find the operation panel. Neither can it be placed on top or bottom where connections and outlets are mounted.
In case the unit is moved at a temperature of approx or below 0°C (32°F), you must always make sure that the the unit has been fully emptied for water. If this is not the case, you may damage the unit.

6.4. Vibrations
Hand-arm vibrations according to ISO 5349-1.
6.5. Power Supply
Connection instruction is mounted on the cables.
The phase order is subordinated.
6.6. Earth Leakage Circuit Breaker (ELCB).
When using an earth leakage circuit breaker (ELCB) also known as a residual current device (RCD) or a residual current circuit breaker (RCCB) in a system that incorporates a variable speed drive connected to 3 phase 400 V. The trip level of the ELCB has to be 300 mA. (30 mA used in house hold will malfunction due to earth leakage)
Service Switch:
The unit must always be connected to the main supply through a separate service switch.
NB! Installation must always be in accordence with local legistration.

| MU421/MU422
---|---
Voltage:| 3/PE 400 Vac ± 10%
Frequenz:| 50/60 Hz 48 -0%…62 +0%
Motor load:| 5.5 kW
Nominal current:| 14.2 A
Fuse:| 20 A
L1, L2, L3, PE| 2.5 mm2

6.7. Water Connection

• Before the unit is connected to the water supply pipe, the supply line should be rinsed carefully in order to remove coarse impurities and metal shavings.

•  The connection for water must be made at the top of the unit. (see layout drawing).

•  Minimum internal diameter of the supply pipe must be at least 1 1/4” external (ø36mm internal).

• The unit must be fitted with a closing valve for water on the inlet (see  drawing 110003601).

• **** The pressure loss in the supply line must be held as low as possible by
  – avoiding long supply pipes
  – mounting low pressure resistance ball valves and
  – avoiding fittings with high pressure loss.

• When installing the piping, take care to avoid air traps.

• All pipe connections to the unit must be screwed connections ensuring simple maintenance and dismantling of the station.

Max. allowed temperature of supply water: 70°C
Max. allowed pressure of supply water: 2-8 bar
Water consumption at rinsing mode: 30 l/min
For an optimum functioning of the injector system, we recommend installing a filter on the inlet to avoid impurities.

6.8. Air Connection
Before the unit is connected to the air supply, the pipe system must be carefully rinsed in order to remove coarse impurities.

• The unit requires an air supply boosting
  – an inlet pressure of minimum 6 bar
  – a minimum capacity of 200 l/min.

•  The air supply pipe is connected directly with a quick fitting for easy dismantling. In all units an inlet valve with 1/4”thread is fitted (layout drawings).

Main Station with User Pack System
See drawing no 110003485.

• Place the specially designed User Pack in the automatic holder.
• If changing to a different product when ending the cleaning process, rinse the product inlet line with clean water as follows:
• Replace the User Pack containing product by one with clean water; place the foam nozzle and open the spray gun/outlet valve. The product inlet line is now rinsed with clean water before use of another product.

110003485

6.8.1. Supply of Detergent
Main Station without User Pack System.
See drawing no 110003498

• Place the can with detergent in the can holder
• Check the suction filter for impurities.
• Put the suction hose into the can below product level and avoid suction of air.
• After pre-rinsing, check again that the hose is sufficiently below product level and avoid suction of air during foam or spray operation.
• After use of and when changing product as well as after use of the unit, remove the hose from the can and rinse the product inlet line and injector with clean water.

6.9. Hose Connection

• The special hose fitted with spray gun/outlet valve is connected to the outlet quick coupling of the unit (layout drawing).
•  Maximum hose length: 30 m.
• It is recommended only to use Nilfisk FOOD hoses, which have been tested for resistance.

Operation procedures

7.1. Start up
7.1.1. New System

Note: The pump should be bled and filled with water before start.

7.2. New system
In order to ensure a problem-free start up of a new ystem the pipe system must be flushed and bled.
Bleeding the pipe system

1. Turn on the water supply to rinse and bleed the entire system. If satellites are installed open the tap furthest away until no air or dirt comes out. Then rinse and bleed the next tap and continue until the tap closest to you has been rinsed and bled.

2. Mount satellites, if any
   Bleeding the pump

3. Loosen the relief plug (A) 1-2 revolutions until water and air begin to flow out.
   
   Never loosen the relief plug while the pump is running as this may damage the packing.

4.  Tighten the relief plug again

5.  Start the pump so that all remaining air pockets are forced up to the top of the pump.

6.  Stop the pump

7. Loosen the relief plug 1-2 revolutions again and bleed the system until only water flows out.

8. Tighten the relief plug once more

The main station is now ready for operation.
Press “I” on the control panel.

7.2.1. Long Stops
If long productions stops are planned (more than 6 months) and the pump is emptied of water, it is recommended that the pump be secured as follows:

1. Remove the coupling safety guard.
2. Spray a couple of drops of silicone oil onto the axle between the top section and the coupling.
   Carefully follow the instructions given in the manual provided by the pump supplier. Never store or install the equipment where the ambient temperature is above 40°C or gets at or below the freezing point.

7.2.2. Start

1. Make sure that the water and air supply to the unit is open. For air see layout drawing. In case of central chemical supply this must be activated too.
2. Select requested function. Use the unit according to the ”User Guide”.

7.2.3. Stop

1. Close the water supply (see drawing 110003601).
2. Close the air supply (see drawing 110003601).
3. Deactivate chemical supply by pulling up the suction hose or removing the userpack.

Due to the following it is very important to close water, air and chemical suplly when the unit not in use.

• If the air supply is open when the unit is not in use – air might seep into the water pipe – which means that the system has to be bled again.

7.2.4. Adjustment of detergent
Remove cover from the unit.
Adjustment of detergent can be done by means of a limiting nozzle.
The limiting nozzle is placed in the suction nipple of the non-retur valve (110003603) and can be replaced with a smaller or larger nozzledepending on the concentration needed, please also see table for guidelines.
All tests have been made with Topax 12

7.2.5. Adjustment of air
Remove the cover from the unit.
Adjust the air pressure on the reduction valve until an appropriate foam quality is reached.
When setting the regulator, carefully pull up the knob and turn it clockwise for pressure increase and counter clock wise for pressure decrease.

7.3. Maintenance, trouble shooting and Service
Maintenance Instructions

1. Quick couplings; it is recommended to lubricate all couplings parts regularly, approx. once a month) by water proof grease to prevent leaks and damage of o-rings.

2.  If the quick couplings leak, o-rings should be replaced.

3. Depending on usage, maintenance should be undertaken by an authorised service engineer at least once a year in order to prevent defects and failure of operation. Authorised engineers are persons who due to their skills and experience have sufficient knowledge of Hygiene Systems and are confident with the state work safety regu-
   
   lations, accident preventing regulations, lines and generally acknowledged technical regulations such as DIN-norms and VDE-provisions. For your safety, this cleaning unit has been manufactured according to all relevant regulations valid in the EU and therefore it has been supplied with the CE-marking. For further information, please refer to the service department.

4. When the cleaning process has been completed or chemicals have been changed, it is important to rinse the suction and injector systems in the following way:

5. Replace the can with a can containing clean water.

6. Put the suction hose into the water can.
   • Connect the foam nozzle.
   • Open the spray gun/outlet valve and keep it open until the injector has been rinsed through (approx. 30 seconds).
   • Remove the suction hose from the water can.

7. It is recommended to descale the unit according to pharagraph 9.5

8. It is recommended to clean the surface inside the unit at least once a month in order to maintain parts and avoid corrosion of parts.

Operation

8.1. Before Operation
If the wall the unit is to be mounted on is made of bricks or concrete, the enclosed screws and rawl plugs are usable, otherwise you have to make sure that the carrying capacity of the wall is sufficient.
The pipeline must be rinsed through before the system is connected.
Remove cover before the unit is mounted on the wall.

8.2. Start/Stop (change, rinse, foam, des)
Start main station

1. Check that water- and air supplies for the system are open.

2. Make sure that the water and air supply to the unit is open. For air see drawing 110003602. In case of central chemical supply this must be activated too.

3. Select requested function. Use the unit according to the ”User Guide”.
   Stop main station

4. Turn off the water supply

5. Close the air supply
   It is important to shut off the water and air when the unit is left after use .
   • If the air supply is open when the unit are not in use, air may seep into the water pipe. If this is the case the system may have to be bled again.
   It may be necessary to bleed the pipes and the unit again after it has been closed for a longer period of time (holidays, and the like)
   CAUTION
   The chemical supply must always be rinsed thoroughly after use

6. The following procedure will clean the chemical
   supply for detergents and/or remains of disinfectants.

7. 1. Remove User Pack or standard can.

8.  2. Hold the rinsing bottle with clean water tightly against the suction opening (with User Pack).
   Alternatively, you can place a User Pack with clean water in the holder or – without User Pack
   – place the hose in a bucket of clean water.

9. 3. Activate the hose handle until clean water comes out of the nozzle (approx. 30 seconds)

Maintenance, Trouble shooting, Service

Service may only be carried out by authorized and qualified personnel.
CAUTION
The system must only be serviced when there is no voltage or pressure on the system

1. Turn off the main switch at the control box
2.  Open a water outlet to depressurise the system.

9.1. Installation Instruction for Flow Switch
There is a dot on one of the nut surfaces on the sensor. This is used to position the contact point of the sensor in relation to the direction of flow of the medium.

This marking must be located within an angle of +/- 30° perpendicular to the direction of flow, as shown in the example.

Diagram of sensor fitted in a pipe.

Loctite 577 is used at the factory to seal the thread, but packing yarn/packing tape can also be used.

9.2. Components
9.2.1. Pumps/motor
Pumps/motor are maintenance free.
9.2.2. Control system
Maintenance free
If defective: Call a service technician
9.2.3. Flow switch
Maintenance-free.
If defective, replace the flow switch.

1. Press “0” on the control panel to stop the system.
2. Remove the cover.
3. Turn the “rinse/foam” handle to foam position.
4. Activate the spray handle on the outlet hose so water runs out.
5. Check that the flow switch is turned the correct way (the wire must follow the follow direction).
6. Turn the brass screw at the bottom of the hole until a green diode lights up.
7. Close the spray handle again and check that the red diode lights up.
8. Mount the cover.

9.3. Preventive maintenance
Depending on usage, maintenance should be undertaken by an authorised service engineer at least once a year in order to prevent defects and failure of operation. Authorised engineers are persons who due to their skills and experience have sufficient knowledge of the Hygiene Systems and are confident with the state work safety regulations, accident preventing regulations, lines and generally acknowledged technical regulations such as DIN-norms and VDE- provisions. For your safety, this cleaning unit has been manufactured according to all relevant regulations valid in the EU and therefore it has been supplied with the CE-marking. For further information, please refer to the service department.
9.4. Rinsing the chemical supply/injector system
The chemist supply must always be rinsed thoroughly after use.
Remains of detergents or disinfectants can clog the injector so it needs to be rinsed or replaced.
The following procedure will clean the chemistry supply for detergents and/or remains of disinfectants.

1. Remove User Pack, if any.
2. Hold the rinsing bottle with clean water tightly against the suction opening (with User Pack) or against the hose (without User Pack). Alternatively, you can place a User Pack with clean water in the holder or – without User Pack – place the hose in a bucket of clean water.
3. Activate the hose handle until clean water comes out of the nozzle (approx. 30 seconds).
   This procedure should be followed both on the detergent and the disinfectant side (if this is installed).

9.5. Deliming

• The interval of the Deliming procedure depends on the water hardness.
• Make sure the water to the unit is disconnected.
• Remove the Cover from the unit.
• Dismount the injector block. Dismount the air valve and the non-return valve for air, inclusive of the air fittings.
• Put the injector block in a deliming bath – make sure the dosing valve (the knob) is over the surface. Wait for 60 minutes.
• Rinse the block in clean water.
• Mount the air valve and the non-return valve on the injector block and mount the injector block in the unit.
• Connect water to the unit.
• Test the unit in Foam position make sure the vacuum is sufficient, it is recommended to be between 14,8 – 20,7 inHg / -0.05 – 0.07 MPa.
• Test that the unit can start and stop in both foam and rinse position
• Reinstall the cover on the unit
  The following deliming interwals must be observed to prevent lime building up in the unit, that can discontinue operation of the unit

9.6. Coupling
It is recommended to lubricate all coupling parts regularly (approx. once a week) with waterproof grease to prevent leaks and damage of packings. If the unit is equipped with a spray gun the piston of the gun should also be lubricated. In leaking quick couplings
the packings should be replaced.
9.7. Internal cleaning of the unit
We recommend opening and cleaning the unit inside min. once a week.
9.8. Trouble Shooting and Remedy
In case of errors/troubles not mentioned above, please contact your local service technician for further assistance.
9.9. Service address
Please see the back cover of this manual

•       The unit does not start after reconnecting voltage

•       Unit starts after changing start up method

•       After reactivating flow start

| •  Reconnect voltage

•  Go to setup ->settings menu ->startup method and set it to pressure

•  Set unit back to flow start in setup menu

•  Try to re adjust flow switch

The “Δ” lamp on the control panel is flashing| •       Error messages on display

•       Error after restart

| •  Press “O” wait for a few seconds and then press “1” on the control panel to restart the system

•    Go to software manual

No pressure / too low pressure| •       Insufficient water supply

•       Is the filter clogged

•       Is the pump leaking or making jarring sounds

•       Rinsing nozzle not installed

•       Defect in booster unit

•       No water supply

| •  Open water supply valve

•  Clean the filter

•  Call technician

•  Place rinsing nozzle

•  Consult direction for use of booster unit

•  Ensure water supply

Insufficient foam creation| •       No supply of diluted products

•       Product not suitable

•       Insufficient air supply

•       Air presure in mixing chamber too high

•       Defect non return valve for air

•       Incorrect nozzle

| •  Consult directions for use of dosing unit

•  Choose suitable product

•  Provide sufficient air supply

•  Adjust air pressure setting

•  Replace non return valve for air

•  Place foam nozzle 50/200

No foam crea- tion| •       No supply of diluted products

•       Product not suitable

•       Air pressure in mixing chamber too high

•       Defect non return valve for air

•       No air supply

•       Non return valve blocked

•       Nozzle of mixing chamber blocked

| •  Consult directions for use of dosing unit

•  Choose suitable product

•  Adjust air pressure setting

•  Replace non return valve for air

•  Ensure air supply

•  Clean or replace non return valve

•  Clean nozzle

No spray sani- tising| •       No supply of diluted products

•       Non return valve blocked

•       Nozzle of mixing chamber blocked

| •  Consult directions for use of dosing unit

•  Clean or replace non return valve

•  Clean nozzle

Tools

Standard tools that are useful/necessary for service and maintenance on the full range of equipment.

| BF/BW & MB Booster Mainstation
Foamatic Mainstation| | Satellites

BF/BW & MB Booster **Mainstation
Foamatic Satellites Foamatic Mainstation**

---|---|---|---
| Satellites

BF/BW & MB Booster Mainstation
Foamatic Satellites Foamatic Mainstation

| | Satellites
BF/BW & MB Booster **Mainstation Foamatic Satellites Foamatic Mainstation
| BF/BW & MB Booster| | Foamatic Satellites Foamatic Mainstation
| Satellites**

BF/BW & MB Booster Mainstation Foamatic Satellites Foamatic Mainstation

| | Satellites Mainstation Foamatic Satellites Foamatic Mainstation

End of Use

11.1. Dismounting
Close all supply valves and remove the unit from wall.
11.2. Disposal
In case the unit should be disposed, it must be separated and sorted in eg- recyclable and non recyclable parts.
The steel construction is easily separated and disposed and constitutes no environmental risk – nor for the user.
Disposal must be made according to rules and regulations in force for disposal of machines as well as all standards in connection with environmental protection.
CAUTION
Disposal of electronic components and other remedies must be handled as special disposal when disposed. Alternatively, it can be disposed by a specialised disposal company.

Recommended spare parts

Pos./Ref.

|

Nr.

No.

|

Description

| HYBRID-P MU421| HYBRID-P MU422
---|---|---|---|---

1

|

110001115

|

Closing valve complete

|

1

|

1

2| 0608135| Air non return valve| 1| 1
3| 110001141| Wall bracket complete| 1| 1
4| | See page 86| |
5| 110003511| Hose with unions| 1| 1
6| 110003512

(0602100)

| Screw kit| |
7| 110003512

(321700)

| Screw kit| |
8| 110003512

(110007782)

| Screw kit| |
9| 110002788| Regulation unit, Air with manometer| 1| 1
10| | See page 82| |
11| 110003512

(110007782)

| Screw kit| |
12| 110003512

(110007782)

| Screw kit| |
13| 110007874| Display| 1| 1
14| 110003512

(110000547)

| Screw kit| |
15| 110008187| Controller Kit| 1| 1
16| | See page 84| |
17| 110003512

(156704)

| Screw kit| |
18| 110003513

(0635042)

| O-ring kit| |
19| 110004713| Temperature sensor| 1| 1
20| 0604234| Pump| 1| 1
21| 110007874| Display| 1| 1
22| 110006921| Sensor Cable| |
| | | |

Pos./Ref.

|

Nr.

No.

|

Description

| HYBRID-P MU421| HYBRID-P MU422
---|---|---|---|---
1| 110004384| Water non return valve complete| 1| 1
2| 110003513

(0600078)

| O-ring kit| |
3| 110003513

(110002785)

| O-ring kit| |
4| 110003512

(0600009)

| Screw kit| |
5| 110002306| Plug incl O-ring| 1| 1
6| 110003513

(110000910)

| O-ring kit| |
7| 110003283| Injector kit| |
8| 110003513

(110000038)

| O-ring kit| |
9| 110003512

(110000526)

| Screw kit| |
10| 110003513

(110002508)

| O-ring kit| |
11| 110003513

(350108)

| O-ring kit| |
12| 110003281| Axle for block Complete| 1| –
12| 110003401| Axle for block Complete| –| 1
13| 909100214| Operation button| 1| 1
14| 110003282| Air regulation valve complete| 1| 1
15| 110003512

(0602021)

| Screw kit| |
16| 110003512

(110000525)

| Screw kit| |
17| 110001102| Chemical non return valve| 2| 2
18| 110001979| Air non return valve complete| 1| 1
19| 110003278| Block complete| 1| –
19| 110003405| Block complete| –| 1
20| 110003682| Outlet coupling complete| |
21| 110003513

(641101)

| O-Ring Kit| |
22| 110003513

(641102)

| O-Ring Kit| |
23| 110004246| Fitting for non return valve| 1| 1
24| 110002392| Flexible pressure piece| |
25| 110006214| Hexagon nipple complete| |

|

110001214

110001197

110001198

110001199

0646105

|

Chemical hose (blue) Chemical hose (yellow) Chemical hose (red) Chemical hose (green) Chemical limiting nozzle

| |

Pos./Ref.

|

Nr.

No.

|

Description

| HYBRID-P MU421| HYBRID-P MU422
---|---|---|---|---
1| 630900| Non return valve| 1| 1
2| 110001240| Inlet manifold complete| 1| 1
3| 110001250| Split kit| 1|
4| 110003513

(603700)

| O-ring kit| 1| 1
5| 110000889| Inlet pressure sensor| 1| 1
6| 110000963| Flow switch| 1| 1
7| 110001312| Inlet pipe| |
8| 110001463

(0602094)

| Screw kit| |
9| 110005280| Bracket| 1| 1
10| 110006921| Sensor Cable| |
| | | |

Pos./Ref.

|

Nr.

No.

|

Description

| HYBRID-P MU421| HYBRID-P MU422
---|---|---|---|---
1| 110003511| Hose with unions| 1| 1
2| 110001463

(0602094)

| Screw-kit| |
3| 110001250| Split kit| 1| 1
4| 110008451| Outlet manifold complete| 1| 1
5| 110003513

(603700)

| O-ring kit| 1| 1
6| 0603328| Outlet pipe| 1| 1
7| 110000890| Outlet pressure sensor| 1| 1
8| 0664316| Nipple| 1| 1
9| 110001463

(0602094)

| Screw kit| |
10| 110005280| Bracket| 1| 1
11| 110006921| Sensor cable| |
| | | |

Operating Diagrams
MU421/MK (optional)

MU422 / MK (Optional)

El diagram

Sensor diagram

Pump curve

Installation

Mounting

Vertical adjustment

Layout Hybrid MU

| English
---|---
1| Water inlet
2| Inlet manifold
3| Pressure sensor
4| Pump
5| Outlet manifold
6| Outlet pipe
7| Air inlet – cold air intake
8| Controller
9| Multi block
10| Ball valve with quick coupling
11| Air regulator with manometer
12| Display
13| Flow switch
14| Air inlet
15| Operation buttons (navigation)
16| Operation panel
o: Push button stop
I: Push button start
△: Warning lamp
17| Operation button
18| Pressure sensor
19| Temperature sensor

No.: 110008399D 02/2023
Printed in Denmark
Serial no: 154.0X.XXXXXX
© 2014 All rights reserved

References

• Home - Nilfisk Food

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