Miele professional G 7881 Operating Instructions Manual
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Miele professional G 7881 Operating Instructions Manual

Miele professional G 7881 Operating Instructions Manual

Dental thermal disinfector
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Operating instructions
G 7881
Dental Thermal Disinfector
GW
To avoid the risk of accidents or
damage to the machine it is
essential to read these operating instructions
before it is installed, commissioned and used for the
first time.
M.-Nr. 05 800 631

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Summary of Contents for Miele professional G 7881

  • Page 1 Operating instructions G 7881 Dental Thermal Disinfector To avoid the risk of accidents or damage to the machine it is essential to read these operating instructions before it is installed, commissioned and used for the first time. M.-Nr. 05 800 631...

  • Page 2: Table Of Contents

    Contents Description of the machine ......... . 3 Guide to the machine.

  • Page 3: Description Of The Machine

    Description of the machine The G 7881 washer disinfector is In Germany, the parameters for suitable for the automatic cleaning and disinfection of a temperature of 93 °C, disinfection of dental instruments and with a holding time of 10 minutes,...

  • Page 4: Guide To The Machine

    Guide to the machine a On/Off button (I-0) j Add cleaning agent (liquid) indicator light *) b Door release c Display Optical interface for service technician d Delay start indicator light k Add rinsing agent indicator light e Drying indicator light l Add neutralising agent indicator light f Programme start indicator light m Add salt indicator light...
  • Page 5 Guide to the machine a Connection for DOS module G 60 d Dispenser for powder cleaning agent Optional dispenser pump for e Rinsing agent reservoir liquid cleaning agent (with dosage selector) - at the back of the machine - f Level indicator b Filter combination c Salt container (for the water softener)

  • Page 6: Warning And Safety Instructions

    Warning and Safety instructions Please pay attention to the following This machine complies with all notes to avoid injury and damage. relevant legal safety requirements. The machine should be Incorrect use can lead to personal commissioned and then injury and damage to property. maintained only by a Miele authorised To avoid the risk of accidents and and trained service technician.
  • Page 7 Warning and Safety instructions Personnel operating the machine door! Where disinfecting agents are should be trained regularly. used there is a danger of inhaling toxic Untrained personnel must not be fumes. Baskets, inserts and utensils allowed access to the machine or its must be allowed to cool down before controls.
  • Page 8 Warning and Safety instructions For decontamination in Where a chemical additive is accordance with official recommended on technical regulations, the programme must not application grounds (e.g. a cleaning be interrupted by pressing the I-0 agent), this does not imply that the button to switch off after START has manufacturer of the machine accepts been pressed .
  • Page 9 Warning and Safety instructions In critical applications where very Please follow the advice on stringent requirements have to be installation in these instructions met, it is strongly recommended that all and the separate Installation the relevant factors for the process, Instructions.

  • Page 10: Caring For The Environment

    Caring for the environment Disposal of the packing Disposal of your old machine material Old machines contain materials which can be reclaimed or recycled. Please The transport and protective packing contact your dealer, your waste has been selected from materials which collection centre or scrap merchant are environmentally friendly for disposal about potential recycling schemes.

  • Page 11: Before Using For The First Time

    Before using for the first time Load the machine carefully Before using for the first time please Arrange the load so that water will pay special attention to the following come into contact with all surfaces. points. Concealed surfaces will not be cleaned.

  • Page 12: Opening And Closing The Door

    Opening and closing the door Electric door lock To cancel a programme The machine is equipped with an If a programme has to be cancelled in electric door lock. an emergency, e.g. when articles in the machine jostle against each other or The door can only be opened when: the programme has been interrupted ^ the electricity supply to the machine...

  • Page 13: To Open The Door With The Emergency Release

    Opening and closing the door To open the door with the emergency release The emergency release should only be used when the door cannot be opened normally, e.g. in the event of a power failure. Important It is essential to follow procedures, particularly with regard to regulations on preventing the spread of epidemics, as described in "Operation - cancelling...

  • Page 14: Water Softener

    Water softener The water needs to be softened to avoid calcium deposits building up on instruments and utensils and in the machine itself. To ensure a steady supply of soft water the water softener unit must always be: 1. correctly set (programmed) and 2.
  • Page 15 Water softener Settings °d mmol/l °f Setting °d mmol/l °f Setting (German (German scale) scale) 10.1 10.3 10.4 10.6 10.8 *) factory setting 19 *)

  • Page 16: Setting The Water Softener

    Water softener Setting the water softener For future servicing it is useful to make a note of your water hardness level. ^ Switch off the machine. ^ Enter your water hardness level here: ^ Turn the programme selector to the °d (German scale) or STOP position f.

  • Page 17: Filling The Salt Reservoir

    These could contain components which are insoluble in wa- ter which could result in damage to the water softener. If in doubt consult your Miele Professional Department. The salt reservoir holds approx. 2.5 kg of salt. Inadvertently filling the salt reservoir with cleaning agent will damage the water softener.

  • Page 18: Salt Indicator

    Water softener Salt indicator When the salt reservoir is empty the k indicator light b comes on to remind you to fill the reservoir. Reactivation takes place automatically during a programme. The programme sequence indicator light k a lights up whilst this is happening.

  • Page 19: Rinsing Agent

    Rinsing agent ^ Open the door fully. Rinsing agent is necessary to ensure water does not cling and leave marks on items during the drying phase and to help items dry faster after they have been washed. Rinsing agent is poured into the storage reservoir and the amount set is dispensed automatically.

  • Page 20: Setting The Dosage

    Rinsing agent ^ Wait until the indicator light H on the control panel lights up again before adding any more rinsing agent. Setting the dosage The dosage adjuster in the opening has settings from 1 to 6 (1-6 ml). It is set to 3 (3 ml) at the factory.

  • Page 21: Adding Neutralising Agent

    (contact Miele Professional for advice if necessary). Neutralising agent (pH-level: acidic) neutralises residues of alkaline cleaning agents on the surface of instruments and utensils.

  • Page 22: Adding Cleaning Agent

    Adding cleaning agent Only use cleaning agents suitable for washer disinfectors. Do not use detergents formulated for domestic dishwashers. We recommend using a liquid detergents, dispensed via the optional DOS module (see "Note" on the next page). This particularly important for the "vario TD"...

  • Page 23: Maintenance Of The Dispensing System

    Adding cleaning agent Maintenance of the dispensing Taking the effect on the environment into consideration, please bear the system following points in mind when selecting To ensure trouble-free operation the a cleaning agent: following regular maintenance should ^ What level of alkalinity is required to be carried out by a Miele approved ser- achieve the correct level of cleaning? vice technician.

  • Page 24: Loading The Machine

    Loading the machine ^ Hollow items should be inverted and This washer disinfector normally requires a top and bottom basket. placed in the correct inserts. The wa- Various inserts and special baskets are ter must be able to access them also available for a wide variety of unhindered.
  • Page 25 Loading the machine ^ Adding neutralising agent to the Important: interim rinse stage of some Make sure that the water connection programmes, helps prevent spring adapter engages correctly when discolouration and rust spots a basket or injector unit is inserted in appearing on the items being the machine.

  • Page 26: Loading Examples

    Loading the machine Loading examples: O 177 top basket/injector unit O 177 top basket/injector unit With E 413 insert 1/1 for 6 suction tubes Left hand side of basket: free e.g. for E which can be thermally disinfected. 337 insert 2/5 for upright instruments. Suds are flushed through the tubes to With double ended sharp instruments clean them.
  • Page 27 Loading the machine U 874 Bottom basket/carrier E 147/1 Insert 1/2 Left hand side of basket: E 130 insert Half insert for 10-12 mouth rinse 1/2 for 10 trays. beakers. Right hand side of basket: E 379 Insert Mouth rinse beakers should preferably 1/2 mesh basket be cleaned in the top basket.

  • Page 28: Adjusting The Top Basket

    Loading the machine Adjusting the top basket The top basket can be adjusted above and below the middle position by 2 cm. Depending on the position of the top basket, the baskets can accommodate vessels and instruments of the following heights: Example: Top basket O 190 and bottom basket U 874...

  • Page 29: Programme Selection

    Programme selection Choose your programme according to the type of instruments or utensils being cleaned, and the degree of soiling. The different programmes and their uses are described overleaf in the Programme Chart.

  • Page 30: Programme Chart

    Programme chart Programme When to use Cleaning agent (when not using liquid cleaning agent) Follow manufacturer’s instructions Freely programmable 30 grammes in the cleaning agent dispenser For normally soiled items 30 grammes in the (without disinfection) cleaning agent dispenser UNIVERSAL To rinse heavily soiled utensils, e.g.
  • Page 31 Programme sequence Pre-wash Thermal Rinse Rinse Final Drying disinfection rinse (Additional and/or cleaning function) 60°C/3’ 65°C/1’ (AD) DOS 2 55°C/5’ DOS 3 93°C/5’ (AD) DOS 2 93°C/10’ DOS 3 75°C/3’ (AD) DOS 2 X = Sections included in a programme (with temperature/temperature holding time) To change a temperature or temperature holding time see "Programming special functions".

  • Page 32: Operation

    Operation Once the programme has started, all Switching on other programmes are blocked. If the ^ Close the door. programme selector is then turned to ^ Open the stopcocks (if turned off). another programme, the values shown in the display go out. The values can be ^ Press the I-0 button.

  • Page 33: Changing A Programme

    Operation c Drying (additional function) Changing a programme r End of programme Provided the Start button has not yet been pressed, a wrongly selected (Programme parameters have programme may be changed as been reached) described below (if it has been pressed, see "Cancelling a At the end of a programme programme").

  • Page 34: To Cancel A Programme

    Operation To cancel a programme The following procedure should be followed when dealing with official Once a programme is running it should cases of epidemics using the only be cancelled in extreme cases, SPECIAL 93°C-10’ or e.g. when articles in the machine rattle SPECIAL AN 93°C-10 programme or jostle against each other and have to (depending on model):...

  • Page 35: Programming Special Functions

    Programming special functions ^ Press 0 twice, "E02" (programming For future servicing work, please level 2) will appear in the display. document any alterations to the stan- dard factory settings. 1.1 DOS 1 (liquid cleaning agent) via Enter any alterations in the field the optional DOS-Module G 60 or Value set:_________.
  • Page 36 Programming special functions 1.1.2 Venting the dispensing system: a) After setting the cleaning agent concentration: ^ Turn the programme selector to the A position. "do1" appears in the display. ^ Press ß. The dispensing system will be vented automatically. "do1" will appear in the display when venting is finished.
  • Page 37 Programming special functions 1.2 DOS 3 (Neutralising agent) Having changed a value or all values: ^ Press the 6 button. SP appears. 1.2.1 Setting the dosage concentration: ^ Press 6 again. The change has Set the concentration level according to been recorded.
  • Page 38 Programming special functions 2. Altering the wash Main wash temperature: temperature and/or the ^ Press 0 as often as necessary or temperature holding time in hold it pressed in until "E09" the Main wash (except with the (programming level 9) appears in the display.
  • Page 39 Programming special functions Final rinse temperature: Having changed a value or all values: ^ Turn the programme selector to the ^ Press the 6 button. SP appears. STOP position f. ^ Press 6 again. The change has ^ Press 0 as often as necessary or been recorded.
  • Page 40 Programming special functions 3. Audible tone 24 = Reminder to remove a test item 25 = Buzzer at end of programme (Buzzer) and for removing a test item This special function allows you to 26 = Fault indication and buzzer for programme a buzzer (lasting up to a removing a test item maximum of 30 seconds) for the...
  • Page 41 Programming special functions 4. Re-setting all parameter If the hardness level setting in the changes back to the factory water softener had been changed settings. this will reset to the factory setting of 340 mg/l (19 °d). This will need to be ^ Turn the programme selector to the reset to suit the hardness level in STOP position f.

  • Page 42: Cleaning And Care

    Cleaning and care Cleaning the filters in the wash cabinet This machine must not be used without all the filters in place. The filter combination in the base of the wash cabinet should be inspected regularly and cleaned if necessary. Caution Watch out for glass splinters which could cause injury.
  • Page 43 Cleaning and care Cleaning the spray arms Waste particles can lodge in the spray arm jets. It is therefore important to inspect the spray arms regularly. ^ Use a sharp pointed object to push particles into the spray arm jets and rinse well under running water.

  • Page 44: Cleaning The Drain Pump And Non-Return Valve

    Cleaning and care 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 45: Cleaning The Control Panel

    Cleaning and care ^ Replace filters and the seal. Make Cleaning the filters in the water sure they are sitting correctly. inlet ^ Reconnect the hose to the water inlet, Filters are incorporated in the screw making sure that it goes back on connection of the water inlet hose to straight.

  • Page 46: Correcting Minor Faults

    Correcting minor faults With the aid of the following explanatory The wash cycle finishes too early and the p / 6 indicator light flashes notes, minor faults can be corrected without contacting the Miele Service (fault code F A appears in the Dept.

  • Page 47: After Sales Service

    Correcting minor faults After sales service Technical safety Important: The Medical devices directive When a fault first occurs, please check 93/42/EWG , which requires that safety that the fault has not been caused by and operational checks are carried out incorrect operation.

  • Page 48: Installation

    Installation ^ Open the door. Please refer to the installation diagram supplied with the machine. Furniture and fittings installed near the machine must be of a commercial standard able to withstand the effects of steam and condensed water. The machine must be installed correctly and levelled.
  • Page 49 Installation Position and secure the machine To ensure stability the machine must first be aligned and then screwed to the worktop. ^ Open the door. Secure the machine to the front edge of the worktop using screws through the holes on the left and right hand sides of the front trim.

  • Page 50: Electrical Connection

    Electrical connection The conversion diagram and data plate All electrical work must be with test certification (VDE, DVGW etc.) carried out by a suitably qualified is located on the rear of the machine, and competent person in and on the plinth (behind the service accordance with local and national panel).
  • Page 51 Electrical connection To re-assemble: ^ Refit the plastic protective cap, plinth facing and service panel in the reverse order to which they were removed. See also the installation diagram supplied.

  • Page 52: Plumbing

    Plumbing ^ Stopcocks with 3/4 BSP male thread Connection to the water inlet are to be provided on site. They Water in the machine is not should be easily accessible so that suitable for drinking. the water supply can be turned off when the machine is not in use.
  • Page 53 Plumbing AD-water connection (pressurised) >50-1000 kPa (0,5-10 bar) - optional extra - The machine is supplied for connection to a supply system of 50 - 1000 kPa (0.5 - 10 bar). If the water flow pressure is below 2 bar (200 kPa) the fill time is automatically extended.
  • Page 54 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 55: Technical Data

    Technical data Height: 85 (82) cm Width: 60 cm Depth: 60 cm Voltage: see data plate Rated load: see data plate Fuse rating: see data plate Mains connection cable: approx. 1.8 m Water pressure (flow rate): 50 - 1000 kPa (0.5 - 10 bar) Cold water connection ü...
  • Page 56 Alteration rights reserved / 3504 M.-Nr. 05 800 631 / 01 en - GB This paper consists of cellulose which has been bleached without the use of chlorine.

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