Arjo Ninjo Technical Manual
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Arjo Ninjo Technical Manual

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TECHNICAL MANUAL
Ninjo
6001313802_2EN • 12/2020

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  • Page 1 TECHNICAL MANUAL Ninjo 6001313802_2EN • 12/2020...
  • Page 2 Design Policy and Copyright ® and ™ are trademarks belonging to the Arjo group of companies. © Arjo 2020. As our policy is one of continuous improvement, we reserve the right to modify designs without prior notice.

  • Page 3: Table Of Contents

    Contents PREFACE ...........................6 1 SAFETY PRECAUTIONS ....................7 1.1 Important ......................7 1.2 In an emergency ....................8 1.3 Product liability .....................8 1.4 Isolator switch ......................8 1.5 Attention symbols ....................8 2 PRESENTATION ......................9 2.1 Intended use of the machine ................9 2.2 General ........................9 2.3 Function .......................9 2.4 P&I diagram .......................10 2.4.1 With ventilator ..................10...
  • Page 4 4.7.2 External cooling, line 14 ..............23 4.8 Disinfection ......................23 4.8.1 Disinfection temperature, line 15 ............23 4.8.2 Disinfection time, line 16 ..............23 4.8.3 Preheating steam generator, line 17 ...........23 4.8.4 Cooling time, line 18 ................23 4.8.5 Inactivity, line 19 ..................24 4.9 Error statistics, lines 21–33 ................24 4.10 Display during operation, line 37 ..............25 4.11 Program statistics ....................25 4.11.1 Max disinfection temperature, line 40..........25...
  • Page 5 (2.3) ........................38 6.3.5 Checking temperature sensors (2.4) ...........38 6.3.6 Checking door seals and chamber seals (2.5) ........39 6.3.7 Checking fastening points for goods holder (2.6) .......39 ..........39 6.3.9 Internal cleaning of the chamber (2.8) ..........39 6.3.10 Checking door and door springs (2.9) ..........39 6.4 Process tank (Item 3) ..................40 6.4.1 Cleaning the process tank (3.1) ............40 6.4.2 Checking level sensors (3.2) ...............40...

  • Page 6: Preface

    Arjo. The information in this manual describes the machine as dispatched from Arjo. There may be differences due to customization for customers or countries. The machine is accompanied by the following documentation: •...

  • Page 7: Safety Precautions

    Precautions must be taken with hot water and steam. • Run a program with disinfection before starting servicing work. If this is not possible, disinfect the machine with disinfectant before starting servicing work. • Spare parts must only be obtained from Arjo’s sales companies.

  • Page 8: In An Emergency

    1.3 Product liability This product complies with European Community harmonised legislation. approval of Arjo negates Arjo’s product liability. 1.4 Isolator switch The machine must be equipped with a separate isolator switch in the feed power supply. The isolator switch must be easily accessible on a wall close to the machine.

  • Page 9: Presentation

    To meet the requirements of EN ISO 15883, the items must be placed in the proper holder, recommended by Arjo. The customer is responsible for ensuring that an Installation the product is put into use.

  • Page 10: P&I Diagram

    2.4 P&I diagram 2.4.1 With ventilator Figure 1. P&I diagram with ventilator...

  • Page 11: Without Ventilator

    2.4.2 Without ventilator Figure 2. P&I diagram without ventilator 2.4.3 Safe and simple The disinfector is fully automated and the control buttons are few and clearly marked, making operation simple. Through continuous monitoring of the process, safety and reliability can remain high, and at the same time, the built-in service program substantially facilitates troubleshooting and service.

  • Page 12: Cooling

    2.5 Cooling 2.5.1 Cooling with ventilator (optional) sucking the warm air out from the chamber. 2.5.2 Internal cooling (optional) Internal cooling takes water from the tank and the standard water supply. This method is not recommended according to EN ISO 15883. 2.6 Inspection hole The inspection hole is located in the front right corner of the chamber.

  • Page 13: Example Of Program Sequence

    Intensive program 3 Program for hard water: Programs P6 to P10 have the same function as P1 to P5, but are intended for water with a hardness rinsing phase before the disinfection phase. Economy program for hard water Normal program for hard water Intensive program 1 for hard water Intensive program 2 for hard water P10 Intensive program 3 for hard water...

  • Page 14: Service Program

    3 SERVICE PROGRAM 3.1 Function In the service program, maintenance and service personnel can set parameters which control the operation of the machine. These parameters are divided into the following groups: • Machine-independent settings • • Program selection • Dose size •...

  • Page 15: Accessing The Service Program

    3.2 Accessing the service program Note! You must enter your access rights code before you can change anything in the program. If the numerical value cannot be changed or you do not have the access rights to change it. Note! You must be in line number mode to quit the service program.

  • Page 16: Checking Or Changing A Numerical Value On A Line

    3.4 Checking or changing a numerical value on a line • Press (increase line number) or (reduce line number) so the display shows the right line number. Holding down the button scrolls the value up or down for as long as the button is pressed.

  • Page 17: Line Information

    4 LINE INFORMATION 4.1 Line Line Parameter basic range Lines 1-2: Machine-independent variables Program version N.NN Serial number WXXXXXX Line 3: Demo mode Demo mode See “Demo mode” Temperature scale 1 = °C, 2 = °F Cooling method 0 = None, 1 = Internal, 2 = External/fan, 3 = fan extended Lines 6-7: Program selection...
  • Page 18 Line Parameter basic range Lines 15-16: Disinfection Disinfection temperature 80–95°C (Note: Celsius only) C Disinfection time 0-1,800 seconds Preheating 0-99 0 = switched off Run time for ventilator after 0-600 seconds process Inactivity warning 0 = Inactive 1 = Active Lines 21-33: Error statistics Counter for error code F1 0-99 errors...
  • Page 19 Line Parameter basic range Output 2 - Hot water 0 = off, 1 = on Output 3 - External 0 = off, 1 = on ventilator (fan) Output 4 - Pump, rinse-aid 0 = off, 1 = on Output 5 - Pump, descaler 0 = off, 1 = on Output 6 - Pressure pump 0 = off, 1 = on...

  • Page 20: Machine-Independent Variables

    4.2 Machine-independent variables The line shows which version of the program is loaded on the computer board. These values cannot be changed. Shows the serial number of the machine, i.e. WXXXXX. This numerical value cannot be changed. Note! Demo mode is for internal use only and must not be activated for end users.

  • Page 21: Program Selection Lines 6-7

    • 1 = Internal cooling • 2 = External/fan • 3 = Fan extended (authorization level C) • Default value is 2 Changing the settings requires authorization level B or C. 4.5 Program selection lines 6–7 The lines are used to connect a program to the program selection buttons.

  • Page 22: Dose Size

    The line is used to set the dosing time for descaler. • 0–99 seconds in one-second steps. • 0 = descaler not activated • Default value is 12 Changing the settings requires authorization level B or C. The line is used to set the dosing time for rinse-aid. •...

  • Page 23: External Cooling, Line 14

    The line is used to set the operating time for the ventilator. • 0–600 seconds in one-second steps • Default value is 120 Changing the settings requires authorization level B or C. 4.8 Disinfection The line is used to set the temperature at which the disinfection time in line 16 is to begin.

  • Page 24: Inactivity, Line 19

    WARNING! If the machine has not been used for more than empty chamber before using the machine to clean goods. The line is used to deactivate/activate inactivity warning U9. • 0 = Inactive • 1 = Active • Default value is 1 Changing the settings requires authorization level C.

  • Page 25: Display During Operation, Line 37

    The line is used to set what is displayed on the display during operation. • 1 = Temperature • 2 = A -value • 3 = A -value / Temperature • 4 = Remaining time • 5 = Temperature / Remaining time •...

  • Page 26: Control Of The Outputs, Lines 61-70

    Note! and locked. The lines are used to control the digital outputs. Authorization level B or C required. Line Output Function Valve, cold water Valve, hot water. Ventilator Pump, rinse-aid Pump, descaler Main pump Steam Generators Pump, process agent Unlock door (1 runs unlocking sequence) Lock door (1 runs locking sequence) First press...

  • Page 27: Mix Ratio For Water, Line Number 91-95

    Calibration requires authorization level C. To calibrate: Set the calibration box to 20°C. Wait until the display shows a stable value between 83 Select 90°C on the calibration box. Wait until the display shows a stable value between 367 The lines are used to set the mix ratio between the hot water and cycle.

  • Page 28: Error Indicators

    5 ERROR INDICATORS 5.1 Error message For certain errors in the process, information about the cause of the error is given on the display on the front panel. The error messages must be acknowledged when the error has been put right.

  • Page 29: Acknowledging An Error Message

    5.2 Acknowledging an error message WARNING! Some error messages need to be acknowledged before the machine can be returned to run mode. When the cause of the error has been found and the error has been put right, the error message is acknowledged as follows: First press the button, then the...

  • Page 30: Table Of Errors And Possible Actions

    5.5 Table of errors and possible actions WARNING! WARNING! The machine is connected to the electricity supply and some components are live. Error Possible cause/Action The display is black Check the circuit breaker The electronics unit is not working. The machine stops and the Overheat cutout has tripped because: lamp at lights up and error...

  • Page 31: Preventive Maintenance

    The maintenance interval will have to be determined in each individual case. Arjo recommends that the stated maintenance operations be performed at intervals according to the service table.

  • Page 32: Service Table

    6.1.2 Service table WARNING! WARNING! The machine is connected to the electricity supply and some components are live. The service table below shows recommended maintenance intervals. In addition to system testing, we recommend that appropriate cleaning tests and temperature validation are performed according to EN ISO 15883.
  • Page 33 Measure Every Every other Time* (minutes) cycles cycles Process tank 3.1 Clean as required. • 3.2 Check and clean the level sensor. • 3.3 Check that the valves are working and that the • connections are not leaking. Clean as required. Steam Generators 4.1 Check the connections to the steam generator •...

  • Page 34: General (Item 1)

    6.2 General (Item 1) 6.2.1 Checking electrical cables and connection points (1.1) The purpose of checking the cabling and connection points is primarily to avoid personal injury as well as damage to the machine itself. Check that the power cord to the electrical unit is intact, free of errors and installed as per the instructions.

  • Page 35: Checking Fuses (1.1.1)

    6.2.2 Checking fuses (1.1.1) WARNING! WARNING! The machine is connected to the electricity supply and some components are live. WARNING! sensitive to ESD. The disinfector has the following fuses • F01 - 13 A C 230 V which protects parts of the heavy-current components of the machine •...

  • Page 36: Checking The Cooling Fan (1.2)

    Check the fuses as follows: • Switch off the isolator switch of the machine. • Pull out the panel and remove the cover. • Switch on the isolator switch of the machine. • Check that the Voltage is present and is within tolerance thresholds; the fuses are intact.

  • Page 37: Checking Error Codes And Number Of Processes (1.6)

    6.2.7 Checking error codes and number of processes (1.6) The number of processes and error codes are read in the service program. • The number of processes is found on service line 41. • The number of error codes is found on service lines 21-33. 6.3 The chamber (Item 2) This inspection is done to prevent a slower rotation speed on the nozzle or the nozzle becoming clogged with dirt, deposits and to...

  • Page 38: Checking Temperature Sensors (2.4)

    • Option 2 Hold the nozzle and unscrew the nozzle head. Then insert a screwdriver into the nozzle and position the blade in Figure 7. Dismantling, option 2 • Take out the nozzle at the back of the chamber and disconnect the nozzle from the hose.

  • Page 39: Checking Door Seals And Chamber Seals (2.5)

    6.3.6 Checking door seals and chamber seals (2.5) The inspection is done to check the seal on the door (the seal at the bottom edge of the door) and the chamber seal (the seal that runs along the front edge of the chamber). Failure to perform this inspection can result in unwanted leakage of water and steam.

  • Page 40: Process Tank (Item 3)

    6.4 Process tank (Item 3) 6.4.1 Cleaning the process tank (3.1) In order to maintain good hygiene and proper functioning, the process tank should be cleaned regularly. If this is not done, there is an increased risk of bacterial growth in the tank, which can cause hygiene problems.

  • Page 41: Steam Generator (Item 4)

    6.5 Steam generator (Item 4) 6.5.1 Checking the steam generator (4.1) Check the connections to the steam generator for leakage and make sure the covering insulation is intact and no hot surfaces are exposed. 6.5.2 Checking the steam generator function (4.2) Check that the steam generator generates steam and the chamber heats up.
  • Page 42 • Remove the cover below the ball valve. Empty the steam generator by opening the ball valve. • Remove the hose and the check valve. • Remove the entire steam generator from the pipe system of the machine. Before the steam generator can be opened, the insulation must be removed and then the clamping ring.

  • Page 43: Main Pump (Item 5)

    Figure 9. Components in the steam generator 1. Check valve 5. Insulation 2. Sealing 6. Clamping ring 3. Ball valve 7. O-ring 4. Cover 6.6 Main pump (Item 5) The main pump is a very important component for the machine’s function as it directly affects the cleaning result.

  • Page 44: Checking The Dosage Amount (6.2)

    6.7.2 Checking the dosage amount (6.2) Check the dosage amount to ensure that the correct amount is necessary according to the instructions. WARNING! The detergent in the container may be corrosive. Wear safety glasses and protective gloves. • Pour 100 ml of agent into a measuring glass and push the suction hose down into it.
  • Page 45 WARNING! WARNING! is disconnected from the electric power supply. • Remove the cover of the dosing pump. • while spinning the impeller by hand at the same time. • When the hose is free from the impeller: install the new hose. •...

  • Page 46: Checking The Empty Container Alarm (6.4)

    6.7.4 Checking the empty container alarm (6.4) Lift up the empty container alarm. Warning code U1, U2 or U3 are triggered depending on the dosage options. In the worst case, a missed alarm signal for an empty container can result in the process running without the cleaning and/or descaler being added, with soiled goods as a result.

  • Page 47: Checking Fan Function And Connection (8.2)

    with impaired ventilation capacity as a result. Cut off the straps. Figure 12. 6.9.2 Checking fan function and connection (8.2) If the fan does not work, the ventilation process can be put out of operation. Check the fan and clean, if needed. Any leakage can lead to impaired performance.

  • Page 48: Test Run (Item 10) (At Each Service)

    6.10 Test run (Item 10) (At each service) 6.10.1 Function and leakage check (10.1) Note! High-performance equipment is essential for reliable temperature changes. To check the components function and for any leakage, a process is run. Remove the front and top of the machine. Pull out the front and remove the top and then carry out the following checks: •...

  • Page 49: Checking Panels (10.2)

    The measuring equipment must be capable of continuously recording temperature and time. When carrying out temperature checks, a measuring point close to the machine’s temperature sensor is recommended. 6.10.2 Checking panels (10.2) Check the panel lights by: • switching off the power with the isolator switch •...

  • Page 50: Repairs And Adjustment

    7 REPAIRS AND ADJUSTMENT 7.1 Remove top Remove the top by twisting the two locking screws quarter of a turn. Then pull the top forward and lift it off. Figure 13. Removing the top...

  • Page 51: Opening The Door In The Event Of A Power Failure

    7.2 Opening the door in the event of a power failure Remove the cover from the machine to access the locking mechanism. Slide the locking mechanism to the side. Then open the door. Figure 14. Opening the door manually...

  • Page 52: Draining The Machine

    7.3 Draining the machine WARNING! Warm water can be found inside the steam generator and the pump. 7.3.1 Draining the steam generator Unscrew the cover from the underside of the ball valve on the steam generator. Open the ball valve and drain the steam generator.

  • Page 53: Replacement Of Rotating Nozzle

    WARNING! Figure 16. Components in the nozzle 1. Nozzle head 2. Rotating nozzle • Option 1. between the nozzle and the rotating nozzle. Then unscrew the nozzle by hand. Figure 17. Dismantling, option 1...

  • Page 54: Replacing A Temperature Sensor

    • Option 2 Hold the nozzle and unscrew the nozzle head. Then insert a screwdriver into the nozzle and position the blade in Figure 18. Dismantling, option 2 • Take out the nozzle at the back of the chamber and disconnect the nozzle from the hose.

  • Page 55: Inspection And Calibration Of Ad For Temperature Sensor

    7.6 Inspection and calibration of AD for temperature sensor The AD convertor for the temperature sensor can be regulated see “Reading the temperature”, lines 75–76, and “Calibrating the temperature sensor”, lines 77–78. 7.7 Overheat protection WARNING! WARNING! The machine is connected to the electricity supply and some components are live.
  • Page 56 The steam generator has an overheat protection which trips if the temperature in the steam generator goes too high. If the element overheats, the power is cut to the element and error code F7 appears because the disinfection temperature has not been achieved.

  • Page 57: Component List

    8 COMPONENT LIST 8.1 Positioning -U01 -K02 -A01, -F2 -K03 -X50 -F01 -S01, -S02, -S04, -M05 -M06 -B05 -Y01 -Y02 -A02 -M17 -B01 -E01 -B06 -S01, -S02, -M05 -A02 -M01 -M02 -M03 -B05 -M04 -B01 -E01 -B02 -Y01 -M01 -B03 -Y02 -B04 -X50...

  • Page 58: Description

    8.2 Description Note! Some components are extra equipment. -A01 Control system, -M02 Motor, descaler pump processor board -A02 Display keypad -M03 Motor, process pump -B01 Leakage sensor -M04 Motor, rinse-aid pump -B02 Level sensor, descaling -M05 Locking motor -B03 Level sensor, process -M06 Ventilator fan -B04 Level sensor, rinse-aid -M17 Cooling fan...
  • Page 59 Intentionally left blank...
  • Page 60 At Arjo, we are committed to improving the everyday lives of people affected by reduced mobility and age-related health challenges. With products and solutions that ensure ergonomic patient handling, personal hygiene, disinfection, diagnostics, and the effective prevention of pressure ulcers and venous thromboembolism, we help professionals across care environments to continually raise...

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