Miele G 7836 CD Operating instructions

Operating instructions

Washer-disinfector G 7836 CD

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.

en - GB, AU, NZ

M.-Nr. 06 939 322

Contents

Warning and safety instructions .....................................5

Correct application ...............................................5

Symbols on the machine ..........................................9

Description of the machine.........................................10

Guide to the machine .............................................12

Controls .........................................................13

Opening and closing the door ......................................15

Electro-thermal door lock............................................15

To open the door with the emergency release ...........................15

Water softener ...................................................16

Setting the water softener ...........................................16

Reactivation display................................................16

Reactivating the water softener .......................................17

Filling the salt container ..........................................18

Position the salt container as follows ................................18

Run the reactivation programme ...................................19

Automatic mobile unit recognition (AWK).............................20

Mobile unit coding .................................................21

Mobile unit coding strip ..........................................22

Setting mobile unit coding ........................................22

Areas of application...............................................24

Loading the machine ...............................................25

Height adjustable top basket.........................................26

Surgical instruments (OP) ...........................................27

Ophthalmology ...................................................28

Anaesthetic instruments (AN) ........................................29

Baby bottles (BC) .................................................30

Operating theatre shoes (OS) ........................................31

Laboratory glassware (LG) ..........................................32

Dispensing liquid chemical agents ..................................33

Preparing the DOS dispensers .......................................34

Fill the containers with the relevant agent ............................35

Venting the dispensing system .......................................36

Dispensing system maintenance......................................36

External Dispensing systems.........................................36

Contents

Operation .......................................................37

Switching on .....................................................37

Changing the operating level ........................................37

Starting a programme ..............................................38

Programme sequence ..............................................39

Switching off .....................................................39

Cancelling a programme ............................................40

Interrupting a programme ...........................................41

Data transfer.....................................................42

Maintenance .....................................................43

Periodic checks ...................................................43

Process validation .................................................44

Routine checks ...................................................44

Cleaning the filters in the wash cabinet.................................45

Cleaning the coarse filter .........................................45

Cleaning the coarse, flat and micro-fine filters.........................46

Cleaning the spray arms ............................................47

Cleaning the control panel...........................................48

Cleaning the front of the machine .....................................48

Cleaning the wash cabinet ..........................................48

Cleaning the door seals.............................................48

Protein test .......................................................48

Mobile units, baskets and inserts .....................................49

Drying unit (TA) - Maintenance .......................................50

Changing the coarse filter ........................................50

Changing the fine filter ...........................................51

Printer (optional) ..................................................52

Renewing the paper roll ..........................................52

Renewing the colour cassette .....................................52

Problem solving .................................................53

Thermal cut-out ...................................................53

Cleaning the filters in the water inlet ...................................54

After sales service ................................................55

Installation ......................................................56

Contents

Electrical connection..............................................57

Plumbing........................................................58

Technical data ...................................................61

Optional extras...................................................62

Special processes - OXIVARIO and ORTHOVARIO .....................63

Description of the machine ..........................................63

Areas of application .............................................64

Warning and Safety instructions ......................................65

Connecting the H

Disposal of your old machine.......................................66

solution container ................................65

2O2

Warning and safety instructions

This machine complies with all relevant local and national safety requirements. Incorrect use can, however, lead to personal injury and damage to property. To avoid the risk of accidents and damage to the machine, please read these instructions carefully before starting to use it. Keep these instructions in a safe place for reference, and pass them on to any future user.

Correct application

This washer-disinfector is designed

for specialised applications only, as described in these instructions. Alterations or conversions to the machine, or using it for purposes other than those for which it was designed, are not permitted and could be dangerous. This machine must only be used for cleaning and disinfecting instruments or medical products and laboratory ware if the manufacturer has stated that they are suitable for machine processing. Manufacturer's cleaning and maintenance instructions for instruments etc. must also be observed. Miele cannot be held liable for damage caused by improper or incorrect use or operation of the machine.

This machine may only be used in

mobile installations such as ships if a risk assessment of the installation has been carried out by a suitably qualified engineer.

Please pay attention to the following notes to avoid injury and damage.

The machine should be

commissioned and then maintained only by a Miele authorised and trained service technician. To ensure compliance with the Medical Devices Directive concerning good laboratory practices, a Miele service contract is recommended. Repairs and other work by unqualified persons could be dangerous. The manufacturer cannot be held liable for unauthorised work.

Do not install the machine in an area

where there is any danger of explosion or of freezing conditions.

The electrical safety of this machine

can only be guaranteed if connected to a correctly installed earthing system on site. It is most important that this basic safety requirement is present and regularly tested, and where there is any doubt the on-site wiring system should be inspected by a qualified electrician. The manufacturer cannot be held liable for damage or injury caused by the lack of or inadequacy of an effective earthing system (e.g. electric shock).

This machine is intended for inside

use only.

Warning and safety instructions

A damaged machine is a safety

hazard. Switch off at the mains immedi ately and call the Miele Customer Contact Centre or an authorised and trained Miele Service Dealer.

Personnel operating the machine

should be trained regularly. Untrained personnel must not be allowed access to the machine or its controls.

Take care when handling chemical

agents such as cleaning agent, neutralising agent, rinsing agent etc. These may contain irritant or corrosive ingredients. Do not use organic solvents or inflammable liquids as these could cause an explosion. Follow all relevant safety procedures carefully. Wear protective gloves and goggles. With all chemical agents, the manufacturer's safety instructions and safety data sheets must be observed.

The water in the machine must not

be used as drinking water.

Do not sit or lean on an open door.

The machine could tip up and be damaged or cause an injury.

Be careful when sorting items with

sharp pointed ends and positioning them in the machine that you do not hurt yourself or create a danger for others. Sharp knives etc. should be placed in baskets with the pointed ends facing downwards.

When using this machine in the

higher temperature ranges, be

especially careful not to scald or burn yourself or come into contact with irritant substances when opening the door. Where disinfecting agents are used there is a danger of inhaling toxic fumes.

Should personnel accidentally come

into contact with toxic fumes or chemical agents, follow the emergency instructions given in the manufacturer's safety data sheets.

Mobile units, modules, inserts and

utensils must be allowed to cool down before they are unloaded. Any water remaining in containers could still be very hot. Empty them into the wash cabinet before taking them out.

After using the hot air drying unit,

open the door to allow everything in the cabinet from the load itself to the mobile units, modules and inserts to cool down.

Do not touch the heating elements if

you open the door during or directly after the end of a programme; you could burn yourself. They remain hot for some time after the end of the programme.

Never clean the machine or near

vicinity with a water hose or a pressure washer.

The machine must be disconnected

from the mains electricity supply before any maintenance or repair work is carried out. Do not reconnect it until the maintenance or repair work has been successfully completed.

Warning and safety instructions

The following points should be observed to assist in maintaining quality standards for processing medical instruments and senstitive laboratory glassware, and to avoid injury to patients or damage to equipment.

If the machine is being used for

disinfection in accordance with official regulations on the control of epidemics, the steam condenser and its connections to and from the wash cabinet must be cleaned and disinfected whenever any repairs are carried out or parts replaced.

If it is necessary to interrupt a

programme in exceptional circumstances, this may only be done by authorised personnel.

The standard of cleaning and

disinfection in the disinfection programmes must be routinely confirmed by the user. The process should be thermally electrically monitored on a regular basis, and checked against documented control results. Chemo thermal procedures should also be monitored using chemo or bio indicators.

For thermal disinfection, use

temperatures and temperature holding times to achieve the required infection prophylaxis in accordance with current health and safety regulations.

Disinfection programmes which use

a chemical disinfecting agent at moderate temperatures such as 65 °C or lower are not recognised by §18 IfSG for disinfection. They should only be used for items which cannot withstand the higher temperatures used by thermal disinfection. The range of effective disinfection is based on claims made by the producer of the disinfecting agent. Their instructions on handling, use and effectiveness must be observed. The use of chemo-thermal disinfection procedures is the responsibility of the operator.

If there are toxic or chemical

substances in the suds solution (e.g. aldehyde in the disinfecting agent) you must be particularly vigilant of the risks these carry should you need to interrupt a programme and open the door. The door seals and correct functioning of the steam condenser should be regularly monitored.

Theatre (OP) shoes should only be

cleaned and disinfected in a machine installed specifically for this purpose.

Only use chemical agents

formulated for special processes and approved by Miele for use with this machine. Use of unsuitable agents could adversely affect the components of the machine. Any resultant damage would invalidate the machine guarantee.

Warning and safety instructions

Pre-treatments with cleaning or

disinfecting agents can create foam, as can certain types of soiling and chemical agents. Foam can have an adverse effect on the disinfection and cleaning result.

Where a chemical additive is

recommended on technical application grounds (e.g. a cleaning agent), this does not imply that the manufacturer of the machine accepts liability for the effect of the chemical on the items being cleaned. Please be aware that changes in formulation, storage conditions etc. which may not be publicised by the chemical manufacturer, can have a negative effect on the cleaning result.

When using cleaning agents and

specialised products it is essential that the manufacturer's instructions are followed. Chemicals must only be used for the purpose they are designed for and in the situation specified, to the exclusion of other chemicals, to avoid such dangers as chemical reactions and material damage.

The machine is designed for

operation with water and recommended additive chemical agents only. Organic solvents must not be used in this machine, as there is the danger under certain circumstances of explosion. Although this is not the case with all organic solvents, other problems could arise with their use, for example damage to rubber and synthetic materials.

In critical applications where very

stringent requirements have to be met, it is strongly recommended that all the relevant factors for the process, such as chemical agents, water quality etc. are discussed with the Miele Application Technology specialists.

If cleaning and rinsing results are

subject to particularly stringent requirements (e.g. chemical analysis, specialised industrial processes etc.), a regular quality control test must be carried out by the user to ensure that the required standards of cleanliness are being achieved.

Mobile units, baskets and inserts

should only be used for the purpose they are designed for. Hollow instruments must be thoroughly cleaned, internally and externally.

Empty any containers or utensils

before arranging them in the machine.

Do not allow any remains of acids or

solvents, and in particular hydrochloric acid or chloride solutions, to get into the wash cabinet. Similarly avoid any materials with a corrosive effect. The presence in compounds of any solvents should be minimal (especially those in hazard class A1).

Ensure that solutions or steam

containing hydrochloric acid do not come into contact with the steel outer casing of the machine, to avoid any corrosion damage.

Please follow the advice on

installation in these instructions and the separate Installation Instructions.

Warning and safety instructions

Using accessories

Only use genuine Miele accessories

with this machine. Consult Miele on the type and application of such equipment.

Only use Miele mobile units, baskets

and inserts in this machine. Using accessories made by other manufacturers, or making modifications to Miele accessories, can result in unsatisfactory cleaning and disinfecting results, for which Miele cannot be held liable. Any resultant damage would also invalidate the machine guarantee.

Only use chemical agents which

have been approved by their manufacturer for use in the application you are using. The chemical agent manufacturer is responsible for any negative influences on the material the load is made from and for any damage they may cause to the machine.

Disposal of your old machine

Please note that the machine may

have contamination from blood or other bodily fluids in it and must be decontaminated before disposal. For environmental and safety reasons ensure the machine is completely drained of any residual water, chemical residues and cleaning agent. Observe safety regulations and wear safety goggles and gloves. Make the door lock inoperable, so that children cannot accidentally shut themselves in. Then make appropriate arrangements for the safe disposal of the machine. For tank system machines ensure that any water is emptied out of the tank.

The manufacturer cannot be held liable for damage caused by non-compliance with these Warning and Safety instructions.

Symbols on the machine

Warning: Observe the operating instructions.

Warning: Danger of electric shock.

Description of the machine

This washer-disinfector can be used to clean, rinse, disinfect (thermally and chemo-thermally) and dry a wide range of reusable medical and laboratory products. Follow the medical product manufacturer's instructions (according to EN ISO 17664) on how to process their items by machine.

Examples of application areas:

surgical instruments,

–

minimally invasive surgical

–

instruments,

– anaesthetic and intensive care

instruments,

– baby bottles and teats,

– operating theatre shoes,

– laboratory equipment used in

research and development,

–

laboratory equipment used in areas of analysis and specimen taking,

–

laboratory equipment used in micro-biology and biotechnology.

The type of laboratory products which can be processed range from evaporating dishes to centrifugal test tubes.

Processing medical instruments by machine achieves reproducible results, and should be used in preference to processing them by hand. Where disinfection is required for the protection of staff and/or patients, a thermal disinfection programme, e.g. the DESIN vario TD programme, should be selected. The parameters for thermal disinfection according to EN ISO 15883-1 (A

concept) vary depending on the disinfection standard required. They are 80 °C (+ 5 °C, - 0 °C) with a 10 min holding time (A

- 0 °C) with a 5 min holding time (A

600) or 90 °C (+ 5 °C,

3000). An A0value of 3000 is suitable for inactivating the HBV virus.

National health and safety regulations regarding disinfection must also be observed.

The cleaning programme as well as any chemical agents must be chosen according to the type of soiling and load being processed. The agents used for processing the products should be selected according to the level of cleaning required as well as the area of analysis or analytical method where the product will be used.

The cleaning result must ensure that the instruments have been disinfected correctly, that no residues are left behind, that subsequent sterilisation can be carried out and that the instruments can be used again safely. Medical devices are best processed using the DESIN vario TD programme, or the ORTHOVARIO or OXIVARIO programme where applicable.

The use of a suitable carrier (mobile unit, module, insert etc.) is important to ensure the adequate cleaning of instruments and products. Examples are given in the section "Areas of application".

The washer-disinfector is programmed to carry out the final rinse with mains water or with processed water of a quality to suit the application (e.g. aqua destillata, purified water, de-ionised water, demineralised water).

Description of the machine

This machine complies with EN ISO 15883 for validation purposes.

Guide to the machine

a Electronic controls

b Serial interface, at the back of the

machine (top left behind the cover panel)

c Test point for validation

d Salt reservoir connection point

(for the water softener)

e Filter combination

f Service panel

g Containers for dispensing systems

DOS 2 and DOS 4 (optional)

h DOS drawer

i Reservoir for neutralising agent (red)

and liquid cleaning agent (blue)

j Drying unit (TA)

k Printer (optional)

Controls

Guide to the machine

a Display

with screen saver; i.e. background lighting switches off automatically after 15 mins. Press any button to switch the display back on again.

Faults occurring during operation are shown in the display. They are listed in a chart in the Programming manual.

b On/Off button (I-0)

c Cursor button: left 1

Moves the cursor to the left: – to the previous menu point – to the previous parameter – to the previous input position

Guide to the machine

d Cursor button: right 2

Moves the cursor to the right: – to the next menu point – to the next parameter – to the next input position

e Minus button 3

– Selects programmes from position 24 upwards – Scrolls back page by page in menus – Is used for entering numbers and letters – Alters pre-settings e.g. service parameters

f Plus button 4

– Selects programmes from position 24 upwards – Scrolls forward page by page in menus – Is used for entering numbers and letters – Alters pre-settings e.g. service parameters

g Door switch 5

h Start button 6

– Starts programmes – Activates input mode – Confirms activated values and settings – Confirms menu points for entry into the relevant

sub-menu

i Stop button 7

– Cancels a programme – Exits from input screen without saving – Exits from menu screen

j Service interface 8

kProgramme selector

Selects programme places 1-23

Opening and closing the door

Electro-thermal door lock

This machine is equipped with an electro-thermal door lock.

The door can only be opened when:

the electricity supply to the machine

–

is switched on,

the master switch I-0 is pressed in,

–

and

a cleaning or disinfection programme

–

is not in progress.

To open the door

^ Press the 5 door button, and holding

onto the door grip open the door.

Do not touch the heating

elements if you open the door during or directly after the end of a programme: you could burn yourself. The elements remain hot for some time after the end of the programme.

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. Be especially careful when using DESIN programmes - read the notes in the Warning and Safety instructions carefully.

If a great deal of hot water is present in the wash cabinet when the programme is interrupted and the door is then closed quickly, hot water can escape. Danger of burning or scalding.

^ Switch the machine off with the I-0

button.

To close the door

Lift the door upwards and push until it clicks shut.

The emergency release cable is located at the bottom of the machine behind the service panel. Pull it downwards to open the door.

Water softener softener (Optional)

In order to achieve good cleaning results, the washer-disinfector needs to operate with soft water. Hard water results in the build-up of calcium deposits on instruments, etc, and in the washer-disinfector. Mains water with a hardness level higher than 0.7 mmol/l (4° d – German scale) needs to be softened. This takes place automatically in the integrated water softener.

The water softener requires

–

reactivation salt.

The washer-disinfector must be

–

programmed to correspond to the water hardness in your area.

– Your local water authority will be able

to advise you on the water hardness in your area.

The water softener is set ex-works for a hardness level of 3.4 mmol/l or 19°d.

If your water hardness differs from this (even if it is below 0.7 mmol/l or 4°d) you will need to programme the level into your machine.

Where the water hardness fluctuates e.g. between 1.4 - 3.1 mmol/l (8 - 17 °d German scale) always programme the washer-disinfector to the higher value (3.1 mmol/l in this example).

For future servicing it is useful to make a note of your water hardness level.

Enter your water hardness level here:

°d or mmol/l

Setting the water softener

When the machine is first commissioned the Miele service technician has to set the machine for your local water hardness level (see Programme manual, Operation/Reactivation).

Reactivation display

After a certain number of cycles the message REACTIVATION will appear in the display to warn you that the water softener is depleted and cannot supply any more softened water. As soon as the programme has finished reactivation salt will need to be replenished.

If this cannot be done immediately, and further cleaning cycles have been carried out, the reactivation process will need to be carried out twice in succession.

The built-in water softener has settings from 1 °d - 60 °d (0.2 -

10.8 mmol/l).

Water softener softener (Optional)

Reactivating the water softener

Please only use special coarse grained reactivation salt with granules of approx. 1-4 mm. Do not use other types of salt, e.g. table salt, agricultural or gritting salt. These could contain components which are insoluble in water which could result in damage to the water softener. If in doubt consult the Miele Professional Department.

The salt container holds approx. 2 kg of salt.

If only fine grained reactivation salt is available please consult the MIELE Professional Sales office for advice. Salt with granules ü 4 mm must not be used in this machine.

Inadvertently filling the salt

reservoir with cleaning agent can cause serious damage to the water softener and damage the filter insert, and cause pressure to build-up in the salt container. To avoid the risk of injury please exercise caution when removing the salt container as there may be irritant alkaline solutions present. Before filling the salt container make sure that you have picked up the right packet of reactivation salt.

Water softener softener (Optional)

Filling the salt container

^ Unscrew the filter insert from the salt

container and remove.

^ Fill the salt container with reactivation

salt and screw the filter insert back in place.

Position the salt container as follows

^ Remove any mobile units from the

cabinet.

^ Unscrew the plastic cap situated in

the top right-hand side of the cabinet.

There will be a small amount of residual water in the cap. Take care as it may be hot from the previous programme.

Screw the salt container firmly onto the socket.

Water softener softener (Optional)

Run the reactivation programme

Close the door.

Open the stopcocks.

Select the REACTIVATION

programme.

The programme will run automatically.

Then:

The water pressure (flow pressure at the take off point) must be at least 100 kPa (1 bar). If it is below100 kPa (1 bar) or if it fluctuates a lot, the water softener will not work properly. After reactivation, salt remains may still be found in the salt container.

Switch off the machine.

Carefully unscrew the salt container,

making sure any water pressure still remaining can depressurise. Do not use force! If the container will not come off manually please contact the Miele Service Department.

^ Replace the plastic cap.

^ Push the mobile unit back into the

cabinet.

^ Turn off the stopcocks.

^ Empty the salt container. Do not

empty it into the wash cabinet.

Rinse the salt container and filter insert with clean water.

To use up salt remains and to rinse out the water softener, the REACTIVATION programme must be carried out again.

Automatic mobile unit recognition (AWK)

In operating level C the automatic

Before starting a programme it is

mobile unit recognition system (AWK) allocates programme places from 1 15 to mobile units with the correct coding.

The unit coding (on the mobile unit) and the programme place with the corresponding programme (in the electronic control unit) have to match each other.

To do this:

Each mobile unit must be coded

before being used for the first time (see "Coding the mobile unit"), and

^ The programme for which the mobile

unit is coded must be allocated to the correct programme place.

See "System function - Selector switch organisation" in the Programming manual for information on how to change programme positions.

absolutely essential that you check that the programme shown in the display is the correct one for the mobile unit being used. Otherwise inadequate cleaning or disinfection could be the result. Please make sure, that the places assigned for the programmes using Automatic mobile unit recognition are not changed around arbitrarily.

Automatic mobile unit recognition (AWK)

Mobile unit coding

The automatic mobile unit recognition feature assigns a programme place to a mobile unit. The mobile units must be coded with a magnetic strip (via a Bit combination). In operating level C, the only programme available for a coded mobile unit is the one assigned to the corresponding programme place.

After a coded mobile unit has been put into the machine and the door closed, the automatic mobile unit recognition system will select the allocated programme (as long as there are no residues or particles on the magnetic strip).

,Make sure that there are no

small metallic objects or instrument parts attracted to the magnetic strip, in particular to the underside of it. Any metallic objects on the strip can result in the coding being incorrectly read.

Coding is effected through 5 Bits:

Bits 1 to 4 define the mobile unit

–

code,

– Bit 5 serves as a control (Parity Bit).

Press 6 to start the programme.

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