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Cleaning the drain pump and
non-return valve

If water has not been pumped away at
the end of a program the drain pump or
the non-return valve may be blocked.

^

Remove the filter combination out of
the wash cabinet.

^

Tilt the locking clamp to the side.

^

Pull out the non-return valve and
rinse well under running water.

The drain pump is beneath the
non-return valve (see arrow).

^

Before refitting the non-return valve,
check that the drain pump is not
blocked. Spin the propeller several
times in both directions to check for
obstructions.

^

Carefully refit the non-return valve
and secure it with the locking clamp.
Refit and lock the filter in place.

For safety the load should be
washed again.

Cleaning and Care

34

Summary of Contents for G 7835

Page 1: ...Operating Instructions Laboratory glassware washer G 7835 To prevent accidents and machine damage read these instructions before installation or use UV M Nr 06 214 820 ...

Page 2: ...ions 19 Loading the machine 19 Height adjustable top basket 21 Laboratory glassware LG 22 Adding of liquid detergents and neutralizers 23 Preparing the DOS dispensers 23 Filling the containers with liquid cleaning agents 24 Priming the liquid dispensing systems 25 Dispensing system maintenance 25 External Dispensing systems 25 Operation 26 Switching on selecting or changing operating level 26 Turn...

Page 3: ...nlet filters 35 Cleaning the control panel 35 Cleaning the exterior 35 Drying unit TA Cleaning and care 36 Changing the coarse filter 36 Replacing the HEPA Filter 37 Frequently asked questions 38 After sales service 39 INSTALLATION INSTRUCTIONS 41 Caring for the environment 42 Installation 43 Leveling the legs 43 Removing the lid if necessary 43 Plumbing 44 Electrical connection 47 Technical Data ...

Page 4: ...ase pay attention to the following notes to maintain safe procedures The machine should be commissioned and then maintained only by a Miele Service Technician Repairs by unqualified persons could be dangerous Do not install the machine in an area where a danger of explosion or freezing may be present Be certain this appliance is properly installed and grounded by an authorized technician To guaran...

Page 5: ...er for other operators When using this machine regard the high temperatures and be especially careful not to scald or burn yourself When opening the door bypassing the electrical lock a danger of burning scalding or corrosion exists Let baskets and inserts cool before touching them Any water which may remain in containers will be very hot and must be emptied into the wash cabinet After drying with...

Page 6: ...se foam For pre treatment and or cleaning only use low sudsing detergents and disinfecting agents which have been approved by Miele Suds can have an adverse effect on the cleaning process When a chemical additive is recommended the manufacturer of the machine takes no responsibility for the effect of the chemical on the material of the items being cleaned Please be aware that changes in formulatio...

Page 7: ...follow the advice on installation in these instructions and the separate Installation Instructions Using accessories Only specific additional equipment made by Miele should be connected to this machine Consult the Miele Professional Group on the type and application of such equipment Disposal of an old appliance When discarding a lab washer disconnect it from the power supply remove the door to th...

Page 8: ...Electronic controls Guide to the machine 8 ...

Page 9: ... programs over 24 going back pagewise in menus type in figures and letters change default settings e g service parameter f Plus button program selection for programs over 24 going forward pagewise in menus type in figures and letters change default settings e g service parameter g Door switch h Start button Starting a program Activating insert mode Confirming settings Confirming menu points to get...

Page 10: ...ergent blue c Filter combination d Salt reservoir water softener e Service panel f Validation Access Port g Connection for DOS module G 60 for addition of a third dosing line rear side h Serial interface rear side left upper side behind cover plate Guide to the machine 10 ...

Page 11: ...in hot for some time after the end of the program To close the door Lift the door upwards and push until it clicks shut 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 case of a power failure Turn the machine off with I 0 Reach up behind the service panel located at the bottom of the machine and pull the ring ...

Page 12: ... need to be filled Once the machine has been set accordingly the reactivation will no longer occur and the salt refill warning will not appear The machine is factory set to a water hardness level of 340 ppm 19 gr gal Your local water authority will advise you of the water hardness in your area For fluctuating levels e g 140 to 310 ppm set the water softener to the highest setting in this example t...

Page 13: ...on select the type of unit e g mmol l and confirm your choice OPERATING INFORMATION REACTIVATE HARDNESS SETTING IN MMOL L WATER HARDNESS 3 4 SOFTENER CAPACITY 170 L OF 210 L Enter Water Hardness After selecting the unit the water hardness value is in the display Activate the input position set the hardness level and confirm your selection OPERATING INFORMATION REACTIVATE HARDNESS SETTING IN MMOL L...

Page 14: ...detergent will damage the water softener Before filling make sure that you are using reactivation salt Remove the bottom basket from the machine Unscrew the salt reservoir cap Before filling the salt reservoir with reactivation salt for the first time fill it with approx 2 5 liters of water Place the funnel provided in place Carefully fill the reservoir with salt Displaced water will run out as it...

Page 15: ...icator Replenish the reactivation salt when the message ADD SALT is displayed Reactivation takes place automatically during a program During this process the message REACTIVATION is displayed Water softener 15 ...

Page 16: ...he Programming Manual Important Before starting the program with the Start button 6 check if the program needed for this mobile unit is displayed Insufficient wash results may occur Always check that programs for mobile units with AWK on fixed program places are not exchanged Mobile unit coding The AWK assigns a program place to a mobile unit The mobile units must be coded with a magnetic strip vi...

Page 17: ... 0 0 I I 0 0 0 0 I I I I 0 0 0 0 I I I I 0 0 0 0 0 0 0 0 I I I I I I I I 0 I I 0 I 0 0 I I 0 0 I 0 I I 0 The coded total must be an even number If the summary totals an odd number the message CHECK MOBILE UNIT RECOGNITION appears In both cases the program cannot be started The mobile unit recognition must be re set Setting mobile unit coding To set or alter the coding of a mobile unit with the AWK...

Page 18: ... must be placed in the track so that the Bit coding set according to the chart is visible through the round windows in the track Place the track in the holder of the mobile unit and screw firmly in place The magnetic strip on the G 7835 must have grey magnets Automatic mobile unit recognition AWK 18 ...

Page 19: ...s and pipes that need stringent cleaning Loading the machine Removing excess soils Empty all containers before loading them into the machine Ensure that no acid or solvent residues especially hydrochloric acid or chlorides get into the wash cabinet Preparing the items for cleaning Are the items to clean correctly sorted and connected Are the spray arms clean and can they rotate freely Is the filte...

Page 20: ... 2 or a mesh tray for small items to secure lightweight items to prevent them from blocking the spray arms or being caught up with the magnetic strip on the automatic mobile unit recognition system Deep based items should be placed at an angle to allow water to run off easily Tall narrow pieces should be placed in the center of the baskets This ensures good water coverage Mobile units and baskets ...

Page 21: ...asket can be adjusted above and below the middle position by 13 16 2 cm Depending on the position of the upper basket and usage of an insert items of the following height can be accommodated in the baskets Example upper basket O 190 1 and lower basket U 874 Upper basket position Upper basket height Lower basket height Upper max 7 7 8 20 cm max 9 7 16 24 cm Middle max 8 11 16 22 cm max 8 11 16 22 c...

Page 22: ...mpty all glassware before loading into the machine Ensure that no acid or solvent residues especially hydrochloric acid or chlorides get into the wash cabinet Remove all agar residues from petri dishes Remove blood clots and residues from test tubes etc Remove all stoppers corks labels sealing wax residues etc Small parts such as stoppers faucets and taps should be secured in suitable basket inser...

Page 23: ...sed through these dispensing systems Preparing the DOS dispensers The agents can be filled into 5 l plastic containers which are color coded for the relevant dispensing system When first commissioning or when the message FILL CONTAINER DOS 1 and or DOS 2 3 4 flashes in the display after switching on or at the end of a program fill the storage container with the correct detergent or neutralizer If ...

Page 24: ...d secure the siphon tube into container observe the color code Once the storage containers have been filled the message clears Remember to refill the containers in time they should not be allowed to empty completely If the container is not in use the refill function for the dosage system not used can be shut off and a respective display message avoided see Program manual Machine function Dispensin...

Page 25: ...ess the Start 6 button The DOS FILL Service Program are allocated by default to program places 58 61 but they can be allocated to other program places Dispensing system maintenance To ensure safe function the following maintenance should be carried out by a Miele Service Technician at specified intervals Every 12 18 months Inspect the hoses in the dispensing system s Replace if necessary External ...

Page 26: ...erating level C AUTOMATIC MOBILE UNIT RECOGNITION is displayed To change the operating level Press 1 and 2 at the same time Operating levels A B C D will appear in the display Select the operating level you want using the 1 or 2 keys Press 6 to confirm selection Enter code when requested by the display The code is set by default to 0000 Press the Start button 6 0000 appears Enter numbers using the...

Page 27: ...ng level B With operating level B there are three possibilities for program selection 1 Program places 1 23 can be selected using the Program selector Turn the program selector to the required program The program name appears in the display 2 Programs above place 24 are selected using the 4 and 3 keys Turn the program selector to 24 Press 4 scrolls upwards or 3 scrolls down until the required prog...

Page 28: ...Press the Start 6 button Document any program and dosage changes Program sequence After being started the program will proceed automatically It is finished when PROGRAM END appears in the display and the background lighting flashes press any button to switch off the flashing lights The flashing lights can be permanently switched off See Programming Manual System Functions Detailed information on p...

Page 29: ...lected and started again 2 In operating levels A or C Select operating level B or D Note you will be asked for your code Proceed as follows Press 1 and 2 at the same time Operating levels A B C D will appear in the display Select operating level B or D with the 1 or 2 key Press 6 to confirm selection Enter code when requested by the display Press the Start button 6 0000 appears Enter numbers using...

Page 30: ... observing any protective measures Close the lift door Press the Start 6 button The program continues 2 In operating levels A or C Press the I 0 button The program is interrupted Select operating level B or D Note you will be asked for your code Proceed as follows Press the On Off I 0 button The machine continues Press 1 and 2 at the same time Operating levels A B C D will appear in the display Se...

Page 31: ...ion cable to the printer PC must not exceed 13 m Please note the following when connecting a printer or PC Only use an industry standard PC or printer When installing the machine take the dimensions of the printer PC into account The report print out documents the time along with the Date and machine number Program start with program place and program name Dispensing system with dispensing tempera...

Page 32: ... place The filter combination in the base of the wash cabinet should be inspected regularly and cleaned if necessary Caution Watch out for sharp objects which could cause injury Cleaning the coarse filter Press the two tabs together remove and clean the coarse filter Put the clean filter back in position and press until it clicks in place Cleaning and Care 32 ...

Page 33: ...he flat and the micro fine filters To unscrew the micro fine filter grasp the two tabs and turn twice counterclockwise Then remove together with the flat filter Clean the filters Replace the filter combination in reverse order The flat filter must lie flat in the base of the wash cabinet Cleaning and Care 33 ...

Page 34: ...ll out the non return valve and rinse well under running water The drain pump is beneath the non return valve see arrow Before refitting the non return valve check that the drain pump is not blocked Spin the propeller several times in both directions to check for obstructions Carefully refit the non return valve and secure it with the locking clamp Refit and lock the filter in place For safety the...

Page 35: ... they are seated correctly Screw the intake hose back on the water valve checking that it is not cross threaded Slowly turn on the valve and test for leaks If there is a leak screw the connections on more tightly Cleaning the control panel Only clean the control panel with a damp cloth Do not use too much water when cleaning the controls Water could penetrate into the electronics and cause damage ...

Page 36: ... face the front with the part imprinted Replace the perforated plate by positioning it at the base and pressing it into place at the top After the coarse filter has been changed set the operating timer to zero as follows Select the program CHANGE TA COARSE see Operating B Free program selection Press the Start 6 button When the service program has ended a message appears in the display Confirm the...

Page 37: ...filter has been changed set the operating timer to zero as follows Select the program CHANGE TA FINE see Operating B Free program selection Press the Start 6 button When the service program has ended a message appears in the display Confirm the instruction CONTINUE with 6 The service programs CHANGE TA COARSE and FINE were set by default to program places 62 and 63 but they can be moved to other p...

Page 38: ...e Programming manual under Messages Heater limiter 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 if large articles cover the heating elements or if the filters in the wash cabinet are blocked If the message CHECK WASH CABINET HEATING is displayed water has not heated up in the wash cabinet and the program...

Page 39: ...ase contact the Miele Technical Service Department See back cover for addresses Please quote the model and serial number of your machine This information can be found on the data plate see also Electrical connection After sales service 39 ...

Page 40: ...40 ...

Page 41: ...INSTALLATION INSTRUCTIONS ...

Page 42: ...s etc are disposed of safely and kept out of the reach of children Danger of suffocation Please recycle Disposal of an old appliance Old appliances may contain materials that can be recycled Please contact your local authorities about recycling in your area Ensure that the appliance presents no danger to children while being stored for disposal See Important Safety Instructions Caring for the envi...

Page 43: ...pensated for and the height of the machine raised or lowered by adjusting the four screw feet When the feet are screwed in the machine can be moved back and forth on its rollers Removing the lid if necessary Open the door Remove the fixing screws on both sides using a cross slotted screwdriver Pull the machine lid approx 5mm forwards lift upwards and remove Protecting the countertop depending on m...

Page 44: ...nser inlet hose without waterproof connector should be connected to the cold water supply using the adapter supplied If no hot water supply is available the hot water inlet hose marked red should also be connected to a cold water supply by a y adapter For a DI water connection H2O pure see next page Water valves with 3 4 2 cm male hose thread are to be provided on site They should be easily access...

Page 45: ...r water pressure of 10 147 psi is acceptable The DI pressure tested hose marked H2O pure with a 3 4 2 cm hose thread must be connected to the on site water valve for DI purified water If the DI water connection is not used the electronics must be reprogrammed by a Miele technician The water intake hose remains at the rear side of the machine Plumbing 45 ...

Page 46: ...f it is lower than 1 ft 0 3 m lay the hose in a curve at a height of at least 1 ft 0 3 m The drainage system must be able to take a minimum drainage flow of 16 l min The drain hose is approx 5 ft 1 5 m long is flexible and has an internal diameter of 7 8 in 22 mm It must not be shortened Hose clamps are supplied for securing it in position A longer drain hose up to 13 ft 4 m long is available to o...

Page 47: ...r supply Voltage 208 V 3 phase Frequency 60 Hz Rated Load 6 kW Circuit breaker 3 x 20 A Black connect to L1 hot Red connect to L2 hot White connect to L3 hot Green connect to GND ground It can be converted to use a single phase power supply in accordance with the conversion and wiring diagram The cord must be changed from a 12 4 AWG to a 10 3 AWG Contact Miele Technical Service for more informatio...

Page 48: ...de of the service panel Remove the service panel and plinth Disconnect the machine from the main electrical supply Remove the fixing screws a from the service panel Take hold of the service panel at both sides and pull upwards Unscrew plinth facing screws b Remove plastic protective cap Re assembling the service panel Replace the plastic protective cap plinth facing and service panel in the revers...

Page 49: ...r connection up to max 158 F 70 C DI Water connection Recommended 25 60 psi 1 72 4 13 bar Acceptable 10 147 psi 7 10 bar Delivery head min 12 0 3 m max 39 3 8 1 m Drainage length max 13 4 m Water intake hose approx 5 7 1 7 m Drain hose approx 4 7 1 4 m Noise level in dB A Sound pressure level LpA At machine 1 m 39 3 8 away Free stand unit washing 66 2 54 drying 64 1 52 Built under counter washing ...

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Page 52: ...All rights reserved 3404 This paper has been bleached without the use of chlorine M Nr 06 214 820 01 ...

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