Miele professional G 7891 Operating Instructions Manual
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Miele professional G 7891 Operating Instructions Manual

Washer-disinfector
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Operating instructions
Washer-disinfector
G 7891
en - GB, AU
To avoid the risk of accidents or
damage to the machine it is
essential to read these instructions
before it is installed, commissioned
and used for the first time.
M.-Nr. 07 779 871

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  • Page 1 Operating instructions Washer-disinfector G 7891 en - GB, AU To avoid the risk of accidents or damage to the machine it is essential to read these instructions before it is installed, commissioned and used for the first time. M.-Nr. 07 779 871...

  • Page 2: Table Of Contents

    Contents Warning and safety instructions ........5 Symbols on the appliance .
  • Page 3 Contents Switching off ........... . . 37 Cancelling a programme .
  • Page 4 Contents Baskets and inserts ..........55 Drying unit (TA) - Maintenance .

  • Page 5: Warning And Safety Instructions

    Warning and safety instructions This machine may only be used in This washer-disinfector complies non-stationary locations if a risk with all relevant local and national assessment of the installation has been safety requirements. Please note carried out by a suitably qualified that incorrect use can lead to engineer.
  • Page 6 Warning and safety instructions Personnel operating the Please be aware that the washer-disinfector should be trained washer-disinfector may be operating at regularly. Untrained personnel and high temperatures. If the door is children must not be allowed access to opened with the emergency release the machine or its controls.
  • Page 7 Warning and safety instructions The machine must be disconnected Use of chemical agents could under from the mains electricity supply before certain circumstances adversely affect any maintenance or repair work is the components of the carried out. Do not reconnect it until the washer-disinfector.
  • Page 8 Warning and safety instructions When using chemical agents such After carrying out any work on the cleaning agent it is essential that the mains water system, the water supply manufacturer's instructions are system to the washer-disinfector must followed. Only use chemical agents for be vented.

  • Page 9: Symbols On The Appliance

    Warning and safety instructions Using accessories Disposing of your old machine Only use genuine Miele original Please note that the machine may accessories with this machine. Consult have contamination from blood or other Miele on the type and application of bodily fluids in it and must be such equipment.

  • Page 10: Intended Use

    Intended use This washer-disinfector can be used to The cleaning programme as well as any clean, rinse, thermally disinfect and dry chemical agents must be chosen a wide range of reusable medical according to the type of soiling and devices used in dental surgeries. load being processed.

  • Page 11: Guide To The Machine

    Guide to the machine a On/Off switch I-0 h Check/Fault indicators: p / 6 Inlet//drain b Door release a Add salt c Display Add neutralising agent Add rinsing agent d ß button to switch between the 8 DOS Optical interface for displays for: service technician;...
  • Page 12 Guide to the machine a Connection for DOS module K 60 at f Rinsing agent reservoir (with dosage the rear of the machine selector) b Service panel g Rinsing agent level indicator c Filter combination At the rear of the machine: d Salt reservoir –...

  • Page 13: Caring For The Environment

    Caring for the environment Disposal of the packing Disposal of your old machine material Electrical and electronic machines often contain materials which, if The transport and protective packing handled or disposed of incorrectly, has been selected from materials which could be potentially hazardous to are environmentally friendly for disposal human health and to the environment.

  • Page 14: Opening And Closing The Door

    Opening and closing the door Electric door lock To open the door with the emergency release This machine is equipped with an electric door lock. The emergency release should only The door can only be opened when: be used when the door cannot be opened normally, e.g.

  • Page 15: Water Softener

    Water softener Programming the water In order to achieve good cleaning results, the washer-disinfector needs to softener operate with soft water. Hard water ^ Switch off the machine. results in the build-up of calcium deposits on instruments etc. and in the ^ Turn the programme selector to f.
  • Page 16 Water softener Table of settings °dH mmol/l °f Setting °dH mmol/l °f Setting 0 *) 10.1 10.3 10.4 19 **) 10.6 10.8 *) The "0" setting is only for machines which do not have a water softener **) Factory default setting...

  • Page 17: Filling The Salt Reservoir

    Water softener ^ Remove the bottom basket from the Filling the salt reservoir machine. Only use special coarse grained ^ Unscrew the salt reservoir cap. reactivation salt with granules of approx. 1 - 4 mm. Do not use other Before filling the salt reservoir with types of salt such as cooking salt, reactivation salt for the first time, you agricultural grade or gritting salt.

  • Page 18: Add Salt Indicator

    Water softener Add salt indicator ^ Remove the funnel and wipe any residual salt off the seal and the Reactivation takes place automatically screw threads on the socket. during a programme. The programme sequence indicator ^ Screw the cap back on firmly. light a k lights up whilst this is ^ Run the PRE-RINSE D programme to happening.

  • Page 19: Areas Of Application

    Areas of application This washer-disinfector normally At the end of each programme: requires an upper and a lower basket. – Carry out a visual check of the load Various inserts and special baskets are for cleanliness. also available for a wide variety of instruments and utensils.

  • Page 20: Loading The Machine

    Areas of application Loading the machine – It is advisable to use instruments made of surgical steel only, as these – Arrange the load so that water can are not susceptible to corrosion. access all surfaces. This ensures that they get properly cleaned. –...

  • Page 21: Water Connection Spring Adapter

    Areas of application Water connection spring Height adjustable top basket adapter The top basket can be adjusted above and below the middle position by 2 cm. Make sure that the spring adapter for water connection engages correctly Different height items can be when a basket or injector unit is processed in this machine depending inserted in the machine.
  • Page 22 Areas of application Upper basket/injector unit O 177/1 Upper basket/injector unit O 177/1 Left hand side of basket: holder and 28 With E 413 insert for 6 thermally stable jets in silicone holders for the direct suction tubes (e.g. Sirona System). injection of hollow instruments.

  • Page 23: Dental

    Areas of application Dental A special holder AUF 1 (optional extra) is required for processing hand pieces and contra angles in top basket O 177/1. Separate operating instructions are supplied with the holder. Fibre optic hand pieces and contra angles should be monitored frequently. Those with fibre optic rods are more durable than those with fibre optic strands.
  • Page 24 Areas of application E 147/1 for 10 - 12 mouth rinse beakers. It is preferable for mouth rinse beakers to be washed in the top basket. Greater fluctuations in temperatures and mechanical action in the bottom basket area can cause stress cracks and corrosion.

  • Page 25: Chemical Processes And Technology

    Chemical processes and technology General notes Problem How to resolve it If seals, hoses and plastics in the – Establish the cause of the damage washer-disinfector suffer damage they and rectify it. will not be water-tight and will not See information regarding "Chemical function correctly.
  • Page 26 Chemical processes and technology Chemical agents Problem How to resolve it The ingredients in chemical agents – Observe the chemical agent have a strong influence on the longevity manufacturer's instructions and and functionality (throughput) of the recommendations. dispensing system. The dispensing –...
  • Page 27 Chemical processes and technology Chemical agents Problem How to resolve it The following chemical agents can – Process parameters in the wash cause large amounts of foam to build programme, such as dispensing temperature, dosage concentration etc. must be set to ensure the whole –...
  • Page 28 Chemical processes and technology Soiling Problem How to resolve it The following substances can lead to a – Thoroughly rinse items in water heavy build-up of foam during washing beforehand. and rinsing: – Select a cleaning programme with at – some disinfecting agents and least one short pre-rinse in cold or dishwashing detergents, hot water.

  • Page 29: Dispensing Chemical Agents

    Dispensing chemical agents ^ Open the door fully. Only use agents formulated specifically for use in washer- disinfectors and make sure you follow the manufacturer's instructions. Pay particular attention to information regarding toxic residues. Adding rinsing agent Rinsing agent is necessary to ensure water does not cling and leave marks on items, and to help items dry faster after they have been washed.

  • Page 30: Add Rinsing Agent Indicator

    Dispensing chemical agents Add rinsing agent indicator Setting the dosage ^ Add rinsing agent to the rinsing The dosage adjuster in the opening has agent reservoir when the Add rinsing settings adjustable from 1 to 6 (1-6 ml). agent indicator H lights up. It is set to 3 (3 ml) at the factory.

  • Page 31: Adding Neutralising Agent

    Dispensing chemical agents ^ When refilling the red container with Adding neutralising agent neutralising agent you could place it Neutralising agent is used in the interim on the open wash cabinet door or on rinse stage of some programmes to a surface which is easy to clean.

  • Page 32: Add Neutralising Agent Indicator

    Dispensing chemical agents Add neutralising agent indicator ^ Refill the neutralising agent container or replace it with a full container when the Add neutralising agent indicator w lights up. Please remember to refill the container in good time. Do not let it get empty.

  • Page 33: Adding Cleaning Agent

    Dispensing chemical agents Adding cleaning agent Adding powder cleaning agent Only use cleaning agents Do not inhale or ingest powder suitable for washer-disinfectors. Do cleaning agent. It can cause burning not use cleaning agents designed in the mouth and throat and inhibit for domestic dishwashers.
  • Page 34 Some types of soiling may require different combinations of cleaning agents and other additives. The Miele Professional Department will be pleased to advise you. ^ Add powder cleaning agent to the compartment. ^ Close the dispenser lid.

  • Page 35: Operation

    Operation Selecting the Drying 0 additional Switching on function ^ Close the door. The Drying additional function may be ^ Open the stopcocks. selected immediately after the ^ Press the I-0 switch. programme has been selected (except with Pre-rinse D and Drain 6). When the programme selector is at f, To do this: a dot lights up in the display.

  • Page 36: Programme Sequence Indicators

    Operation ^ Press the Start button 6. Programme sequence indicators The current temperature will appear in the display. The indicator light for the current The indicator light next to the Start programme stage lights up during the button 6 will light up. programme: Once the programme is running, all the Reactivation...

  • Page 37: At The End Of A Programme

    Operation At the end of a programme Additional drying The programme has ended correctly If additional drying is required after the when r lights up constantly in the end of a programme, the 6 programme programme sequence display and the can be used with the Drying additional 6 indicator has gone out.

  • Page 38: Cancelling A Programme

    Operation ^ Turn the programme selector to f. Cancelling a programme The programme will be cancelled after Where a programme is approx. 2 seconds. cancelled, the items must be ^ Open the door with a. reprocessed. Caution. Water and items in the Programme cancellation due to a machine may be hot.

  • Page 39: Programmable Functions

    Programmable functions For future servicing work, please document any alterations to the factory default settings. Enter any alterations in the appropriate box. General notes: – Switch positions that have not been allocated a function are indicated in the middle part of the display by a bar ( - ). –...

  • Page 40: Resetting The Operating Hours Counter For The Filter In The Drying Unit

    Programmable functions Resetting the operating hours counter for the filter in the drying unit After the filter in the drying unit has been changed, the operating hours counter needs to be reset. Step Display / Result ^ Press 0 as often as necessary or hold it pressed in until E04 appears in the display.

  • Page 41: Dispensing Liquid Cleaning Agent Via Dos 1

    Programmable functions Dispensing liquid cleaning agent via DOS 1 Setting the dosage concentration The dosage concentration must be set exclusively for liquid cleaning agent. Set it according to the manufacturer's recommendations or the official standards required. The dosage concentration must not be altered even if powder cleaning agent is dispensed via the dispenser in the door.

  • Page 42: Dispensing Neutralising Agent Via Dos 3

    Programmable functions Dispensing neutralising agent via DOS 3 Setting the dosage concentration The dosage concentration for the neutralising agent must be set according to the manufacturer's recommenedations or the official standards required. Step Display / Result ^ Press 0 until E02 appears. ^ Turn the programme selector to the 6 The dosage concentration which o'clock position.

  • Page 43: Buzzer

    Programmable functions Buzzer A buzzer can be programmed for the following: – a constant tone will sound at the end of a programme, – a buzzer will sound at one second intervals as a fault warning, and – 3 short beeps followed by a 2 second pause, then 3 short beeps etc will sound as a reminder to remove a test item.

  • Page 44: Changing Programme Parameters

    Programmable functions Changing programme parameters The settings for individual parameters set at the factory are outlined in the Programme chart at the end of these operating instructions. Programme parameters can only be changed if they are activated in a programme; see Programme chart. Any changes carried out must be documented, e.g.

  • Page 45: Changing The Temperature

    Programmable functions Changing the temperature Step Display / Result ^ Press button 0 as often as necessary or hold E09 for Main wash 1 pressed in until the level of the programme block E25 for Final rinse 2 you wish to change appears in the display. E28 for Drying 1 E31 for Drying 2 ^ Turn the programme selector to the programme you...

  • Page 46: Resetting To Factory Default Settings

    Programmable functions Resetting to factory default settings Step Display / Result ^ Press 0 as often as necessary or hold it pressed in until E33 appears in the display. ^ Turn the programme selector to a programme. Factory default setting: Electronics have been programmed to another setting: ^ Press ß...

  • Page 47: Setting The Time And Date

    Programmable functions Setting the time and date The serial interface contains the date and time. This data is transmitted to the report printer. You can reset the date and time, e.g. to change from summer to winter time. The individual values of date and time are activated according to the position of the programme selector: "1 o'clock"...

  • Page 48: Process Documentation

    Process documentation The washer-disinfector is capable of A report containing the following data documenting processing procedures will be produced during a programme (process documentation). sequence: Process documentation can be carried – Date and machine number out either by using documentation software or via a printer.

  • Page 49: Maintenance

    Maintenance Periodic checks The following operational tests will be carried out within the framework of the This washer-disinfector should be maintenance: serviced by a Miele approved service technician in accordance with local and – A programme will be run as a test national safety regulations after every 1000 operating hours, or every 12-18 –...

  • Page 50: Process Validation

    Maintenance Process validation Routine checks The standard of disinfection in the Before the start of each working day, disinfection programmes must be the user must carry out a number of confirmed by the user as a routine routine checks. A check list is supplied matter.

  • Page 51: Cleaning The Filters In The Wash Cabinet

    Maintenance Cleaning the filters in the wash Cleaning the coarse filter cabinet The filters in the base of the wash cabinet are designed to prevent coarse soiling getting into the circulation system. A build-up of coarse soiling can cause the filters to clog up. They should, therefore, be checked daily and cleaned if necessary.

  • Page 52: Cleaning The Flat And Micro-Fine Filters

    Maintenance Cleaning the flat and micro-fine filters ^ Remove the coarse filter. ^ Remove the fine filter from between the coarse and the micro-fine filters. ^ Then remove the micro-fine filter together with the flat filter. ^ Clean the filters. ^ Replace the filters by carrying out the above steps in the reverse order.

  • Page 53: Cleaning The Spray Arms

    Maintenance ^ Unscrew the upper spray arm. Cleaning the spray arms ^ Loosen the knurled thumb nut to The spray arms can become blocked and should therefore be checked every unscrew the lower spray arm. day. ^ Use a sharp pointed object to push ^ After cleaning the spray arms, fit or particles into the spray arm jets, and screw them back into position.

  • Page 54: Cleaning The Control Panel

    Maintenance Cleaning the control panel Never clean the machine or near ^ The control panel should only be vicinity with a hose or a pressure cleaned using a damp cloth or with a washer. proprietary cleaning agent for glass or plastic surfaces. Cleaning the wash cabinet An approved and listed disinfecting agent can be used to wipe surfaces.

  • Page 55: Baskets And Inserts

    Maintenance Baskets and inserts Baskets and inserts should be checked daily to make sure they are functioning correctly. The washer-disinfector is supplied with a check list. The following need to be inspected: – Check that rollers on baskets/inserts are free of hindrance and that they are secure.

  • Page 56: Drying Unit (Ta) - Maintenance

    Maintenance Drying unit (TA) - Maintenance SF2 in the display: Change the filter The filter must be changed if SF2 starts to flash in the display. To ensure the machine operates correctly, use original Miele HEPA filters only (classification 12). ^ Remove the filter from its holder, and replace with a new one.

  • Page 57: Problem Solving Guide

    Problem solving guide The following guide may help to find the reason for a fault and to correct it. You should, however, note the following: Repairs should only be carried out by a Miele authorised and trained ser- vice technician in strict accordance with current local and national safety regulations.
  • Page 58 Problem solving guide Fault Possible cause Remedy The 8 DOS indicator Before trying to rectify the starts flashing before problem, you must: the start of a – Turn the programme selector to f (the fault programme. The programme cannot be code goes out).
  • Page 59 Problem solving guide Fault Possible cause Remedy The w indicator starts Before trying to rectify the flashing before the problem, you must: start of a programme. – Turn the programme selector to f (the fault The programme cannot be started. code goes out).
  • Page 60 Problem solving guide Fault Possible cause Remedy The Add salt indicator The salt reservoir was not Fill carefully with light k flashes. replenished, meaning that reactivation salt. the water softener could not be reactivated. A few minutes after the Before trying to rectify the start of a programme, problem, you must: the p / 6 indicator...
  • Page 61 Problem solving guide Fault Possible cause Remedy The programme is Before trying to rectify the cancelled and the problem, you must: p / 6 indicator – Turn the programme selector to f (the fault flashes. code goes out). – Switch the machine off with the I-0 switch.
  • Page 62 Problem solving guide Fault Possible cause Remedy Cleaning agent residue – Remove the cleaning is left in the dispenser agent residue at the end of a – Reprocess the items. programme. The dispenser was still Make sure the dispenser is damp when detergent was dry before adding cleaning added.
  • Page 63 Problem solving guide Fault Possible cause Remedy There is corrosion on The chloride content of the Have the water analysed. If instruments. water is too high. necessary, connect the machine to an external water softener unit and use deionised water. Rust has entered the wash –...
  • Page 64 Problem solving guide Fault Possible cause Remedy Items are flecked. The rinsing agent dosage Increase the rinsing agent level has been set too low. dosage setting. The rinsing agent reservoir Adding rinsing agent. is empty. The cleaning result is Baskets or inserts have Rearrange the items.

  • Page 65: Other Problems

    Other problems Thermal cut-out This machine has a resettable heater limiter which will shut off the elements in the event of over-heating. This could be caused for example, by large articles covering the heating elements or if the filters in the wash cabinet are blocked. If the fault code: F01 - F03, F18, F19 (water was not heated up in the wash cabinet and the programme is taking...

  • Page 66: Cleaning The Drain Pump And Non-Return Valve

    Other problems Cleaning the drain pump and The drain pump is situated under the non-return valve (see arrow). non-return valve If water has not been pumped away at the end of a programme, the drain pump or the non-return valve might be blocked.

  • Page 67: Cleaning The Filters In The Water Inlet

    Other problems Cleaning the filters in the water To clean the filter inlet ^ Disconnect the machine from the mains supply. Filters are incorporated in the screw connection of the water inlet hose to ^ Turn off the stopcock and unscrew protect the water inlet valve.

  • Page 68: After Sales Service

    After sales service This machine must be commissioned and repaired by a Miele trained and qualified technician only. Unauthorised repair work could cause personal injury or damage to the machine. In the event of any faults that you cannot remedy yourself, please contact your authorised Service Dealer or Miele.

  • Page 69: Installation

    Installation Building the machine under a Please refer to the installation continuous worktop diagrams supplied with the The machine lid must be removed as machine. follows: ^ Open the door. Furniture and fittings installed near the machine must be of a commercial standard able to withstand the effects of steam and condensation.
  • Page 70 Installation Level and secure the machine Cover plate (protects the worktop) To ensure stability, the machine must If required, a special cover plate can first be aligned and then screwed to the be ordered from Miele. worktop. This cover plate protects the underside ^ Open the door.

  • Page 71: Electrical Connection

    Electrical connection The machine must only be operated All electrical work must be with the voltage, frequency and fusing carried out by a suitably qualified shown on the data plate. and competent person in strict This machine can be converted in accordance with current local and accordance with the conversion national safety regulations (BS 7671...

  • Page 72: Plumbing

    Plumbing Connection to the water inlet – The maximum permitted static water pressure is 1000 kPa (10 bar). The water in the machine must – If the water pressure is not in the not be used as drinking water. range specified above (the p / 6 indicator light may come on and the –...

  • Page 73: Ad Water Connection Ö 0.6 - 10 Bar (60 - 1000 Kpa) Over Pressure

    Plumbing AD water connection ö 0.6 - 10 bar (60 - 1000 kPa) over pressure The machine is supplied as standard for connection to an AD water supply of 0.6 - 10 bar (60 - 1000 kPa). If the water pressure (flow rate) is below 1.5 bar (150 kPa) the water intake time is automatically extended.

  • Page 74: Drainage

    Plumbing Drainage – The drainage system is fitted with a non-return valve which prevents dirty water from flowing back into the machine via the drain hose. – The machine should preferably be connected to a separate drainage system on-site. If separate drainage is not available, contact your Miele application specialist for professional advice.

  • Page 75: Technical Data

    Technical data Height with lid 85 cm Height without lid 82 cm Width 60 cm Depth 60 cm Depth with door open 120 cm Weight (net) 70 kg Voltage, connected load, fuse rating See data plate Mains cable Approx. 1.8 m Water temperature: Cold water Max.

  • Page 76: Programme Overview

    Programme overview Programme When to use Freely programmable programme (programmed by a Miele authorised service technician). For normally soiled items (without disinfection) UNIVERSAL For rinsing heavily soiled items, e.g. after soaking them in disinfecting agent, to avoid the build-up of foam in the machine. PRE-RINSE For draining water out of the machine, e.g.
  • Page 77 Programme overview Programme sequence Pre-wash Main wash Rinses Rinses Final rinse Drying* DOS 1 DOS 2 60°C 65°C 80°C 65°C 3 min 1 min 5 min 25 min 65°C 30 min DOS 1 DOS 3 DOS 2 55°C 93°C 99°C 5 min 5 min 35 min...
  • Page 80 Alteration rights reserved / Publication date: 07.04.2011 M.-Nr. 07 779 871 / 00 0366...

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