Miele G 7881 Service Manual

Operating and InstallationInstructionsDental Thermal DisinfectorG 7881To prevent accidentsand machine damageread these instructionsbeforeinstallation

a "On/Off" buttonb "Door" buttonc Displayd "Display" button with indicator(toggles between the elapsed time,active wash

a Connection for DOS module G 60 atthe rear of the machine(Optional dispenser pump for liquiddetergent).b Service panelc Triple filter systemd Salt re

Before using for the first time pleasepay special attention to the followingpoints:Detailed information on these pointscan be found in the relevant se

Electric door lockThe machine is equipped with anelectric door lock.The door can only be opened if:^the machine is connected to theelectrical supply,^

To obtain good cleaning results, thedisinfector needs soft water. Hard tapwater results in calcium deposits on theinstruments and machine.If your tap

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Filling the salt reservoirOnly special, coarse-grainedreactivation salt should be used in thismachine, available from Miele'sProfessional Departm

^Clean any excess salt from thethreads and seal of the containeropening.^ Screw the cap on securely.^ Immediately run the "Rinse" programto

,Use only special processingchemicals for dental thermaldisinfectors and observe themanufacturer's recommendations foruse. In particular, always

Rinse aid indicator^ Refill rinse aid when the rinse aidindicator lights.Setting the rinse aid dosageThe dosage adjuster in the opening hassettings ad

IMPORTANT SAFETY INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Function of the Dental Thermal Disinfector . . . . . .

Adding neutralizerNeutralizer causes remains of alkalinedetergents on the items surface to beneutralized.The neutralizer is automaticallydispensed in

Neutralizer indicator^ Refill the container for neutralizer orreplace it with a new one when the"Neutralizer" indicator lights.Remember to r

Liquid OptionAs a separate option, this machine canalso be fitted with a dispenser pump forautomatic liquid detergent dispensing(DOS-Module G 60). Thi

Powder detergent,Avoid inhaling cleaning agentsin powder form. If processingchemicals are ingested, they cancause chemical burns in the mouthand throa

The disinfector can be equipped with alower and upper basket which can befitted with different inserts, dependingon the type and form of items to bedi

Loading the machine–Load the items to be washed so thatwater can access all surfaces.–Do not place items inside otherpieces.–Water must flow through h

Water connection springadapterThe spring adapter for waterconnection must engage correctlywhen a basket or injector unit isinserted in the machine. It

General informationEffects ActionDamage to elastomer (seals and hoses)or plastic components of the machinemay cause the materials to swell,shrink, har

Connected processing chemicalsEffects ActionThe ingredients of the processingchemicals have a considerable effecton the durability and functionality (

Connected processing chemicalsEffects ActionThe following processing chemicalscan result in excessive foaming:–cleaning and rinsing agents thatcontain

Programming functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36For all programming functions: ...

SoilingEffects ActionThe following substances can causeexcessive foaming during washing andrinsing:–agents such as disinfection agents,dish detergents

Turning on^Close the door.^Press the "On/Off" button.If the program selector is in the fposition an indicator lights in thedisplay.Starting

During a program, the "Display" ßbutton can be used to toggle betweenthe:–actual temperature–elapsed program time and–active wash block(depe

Canceling a program,If a program is canceled it mustbe run again to be complete.Canceling a program because of aninterruptionThe program is stopped pr

Choose your program according to the types of instruments or utensils beingcleaned and the degree of soiling.Programs(fixed)Program DescriptionWash Wa

Program Sequence1. Pre-wash 2. Cleaningand/orthermaldisinfectionand/orcleaning1)3. Interimrinse IwithNeutralization4. Interimrinse II5. Finalrinse1)an

Note any adjustments of the factory settings in the provided field in case aservice call is necessary.General notes–Non occupied program selector posi

Dispensing liquid detergent with the DOS moduleSetting the dosageThe dispensing concentration for liquid detergent must be set. It must be setaccordin

Priming the liquid detergent dispensing systemThe dispensing system needs to be primed:- when the dispensing concentration is set for the first time,-

Dispensing neutralizer with the DOS moduleSetting the dosageThe dispensing concentration for neutralizer must be set according to themanufacturer&apos

This machine conforms to currentsafety requirements. However,inappropriate use can lead topersonal injury and propertydamage. Read the operatinginstru

Priming the neutralizer dispensing systemThe dispensing system needs to be primed:- when the dispensing concentration is set for the first time,- if t

BuzzerA buzzer can be programmed for the following functions:– End of program, constant tone,– Fault, tone in 1 second rhythm,– Signal to take a sampl

This machine offers the ability todocument the cleaning process(process documentation)The documentation process can becompleted either by an externals

Periodic maintenance for this applianceis recommended every 1,000 hours orannually.Routine checksThe routine checks must be done dailyby the user befo

,Wear protective gloves andgoggles when cleaning thismachine.Filter combinationThe machine must not be usedwithout all the filters in place. Thefilter

Cleaning the fine, flat and micro-finefilters^Remove the coarse filter.^Remove the fine filter from betweenthe flat and micro-fine filters.^ To unscre

Cleaning the spray armsThe spray arms can get clogged.Check daily and clean if necessary.Remove the spray arms as follows:^Remove the baskets.Spray ar

Cleaning the drain pump andnon-return valveIf water has not been pumped away atthe end of a program the drain pump orthe non-return valve may be block

Cleaning the water inlet filtersTo protect the water inlet valve, filtersare incorporated in the intake hoseattached to the water faucet. If thefilter

Cleaning the control panel^The control panel should only becleaned with a damp cloth or asuitable cleaner for use on plasticmaterials.,Do not use abra

~Take care when handlingprocessing chemicals (detergents,softeners, neutralizers, etc.). These maycontain irritant or corrosive ingredients.Wear prote

The following guide can be used to help address minor problems without aservice call.Repairs should only be performed by Miele Technical Service. Work

What if ... Possible fault SolutionBefore starting aprogram, the indicator8 Detergent flashes.A program cannot bestarted.Before fixing the fault:–Turn

What if ... Possible fault SolutionBefore starting aprogram, the"Neutralizer" indicatorflashes. A programcannot be started.Before fixing the

What if ... Possible fault SolutionThe "Recharge"indicator flashes.The water softener has runout of salt.Refill the salt reservoir.The indic

What if ... Possible fault SolutionThe program wascanceled, the indicatorp/6 flashes.Before fixing the fault:–Turn the programselector to f, the fault

What if ... Possible fault SolutionDetergent is left in thedispenser at the end ofa program.–Remove any detergentresidue.–Prepare dishes again.The dis

What if ... Possible fault SolutionInstruments showcorrosion.There is too much chloridein the water.Have the water analyzed.Probable need for external

What if ... Possible fault SolutionThe items have stains. The rinse aid dosage is settoo low.Increase the dispenseamount for rinse aid.The container f

Thermo switchThis machine has a resettable heaterlimiter which will shut off the elements inthe event of over-heating. This could becaused for example

,This machine must be installed,maintained and repaired by anauthorized Miele service technician.Maintenance and repair workperformed by unqualified p

The following points should beobserved to assist in maintainingquality standards and to avoiddamage to the loads being cleaned.~Only use process chemi

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INSTALLATION INSTRUCTIONS

Please refer to the installationdiagram included with the machine.,Furniture and fittings installednear the machine must be of acommercial standard, a

Positioning and securing themachineTo ensure stability the machine mustfirst be aligned and then secured to thecountertop.^Open the door.^ Screw the m

,All electrical work must becarried out by a suitably qualifiedelectrician in accordance with localand national safety regulations.–Connection should

Connection to the water inlet,Water in the machine is notsuitable for drinking.^For technical application reasons, themachine is supplied as standard

DI water connectionIf required the machine can beconnected as standard to a DI watersupply of:Acceptable water pressure(flow rate): 10 - 147 psiRecomm

Drainage^The drainage system is fitted with anon-return valve which prevents dirtywater from flowing back into themachine via the drain hose.^The mach

Height:with lid 33 7/16" (85 cm)without lid 32 5/16" (82 cm)Width: 23 5/8 " (60 cm)Depth: 23 5/8 " (60 cm)Depth with the door open

Disposal of the packingmaterialThe protective packing materials areenvironmentally safe and can berecycled.Ensure that any plastic wrappings,bags, etc

~When using cleaning agents andspecialized products, it is essential thatthe manufacturer’s instructions arefollowed. Chemicals must only be usedfor t

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Alteration rights reserved / 2011M.-Nr. 07 778 191 / 01

High-level disinfectionThe G 7881 Dental Thermal Disinfectoris suitable for automatic treatment ofdental instruments and accessories. Itcleans and in

Instruments suitable for processingin the thermal disinfectorIn general, only high quality stainlesssteel instruments are suitable forprocessing in th