Operating and Installation Instructions Dental Thermal Disinfector G 7881 To prevent accidents and machine damage read these instructions before installation or use. en - US, CA M.-Nr.
Contents IMPORTANT SAFETY INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Function of the Dental Thermal Disinfector . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Guide to the Dental Thermal Disinfector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Before using for the first time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Opening and closing the door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents Programming functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 For all programming functions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Activate the program mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Saving the values and ending the program mode . . . . . . . . . . . . . . . . . . . . . . 36 Ending the program mode without saving . . . . . . . . . . . . . . . . . . . . .
IMPORTANT SAFETY INSTRUCTIONS This machine conforms to current safety requirements. However, inappropriate use can lead to personal injury and property damage. Read the operating instructions carefully before using this machine. Keep these instructions in a safe place for reference, and pass them on to any future user. WARNING - To reduce the risk of fire, electric shock or injury: Use ~ This machine is designed for specialized applications only, as described in these Operating Instructions.
IMPORTANT SAFETY INSTRUCTIONS ~ Take care when handling processing chemicals (detergents, softeners, neutralizers, etc.). These may contain irritant or corrosive ingredients. Wear protective gloves and goggles. With all chemical agents the manufacturer’s safety conditions must be observed. ~ The washer is only designed to operate with water and the recommended processing chemicals. The washer must NOT be operated with organic solvents or flammable liquids.
IMPORTANT SAFETY INSTRUCTIONS The following points should be observed to assist in maintaining quality standards and to avoid damage to the loads being cleaned. ~ Only use process chemicals that are approved by Miele for the application involved. Contact a Miele Application Technology specialist if in doubt. ~ Disinfection programs must not be interrupted. This can have a limiting effect on the disinfection result. However, if this should be necessary the complete program must be restarted and completed.
IMPORTANT SAFETY INSTRUCTIONS ~ When using cleaning agents and specialized products, it is essential that the manufacturer’s instructions are followed. Chemicals must only be used for the purpose they are designed and in the situation specified, to the exclusion of other chemicals. This will avoid such dangers as chemical reactions and material damage. ~ The mobile units, baskets and special inserts should only be used for their specific application.
Function of the Dental Thermal Disinfector High-level disinfection The G 7881 Dental Thermal Disinfector is suitable for automatic treatment of dental instruments and accessories. It cleans and in the disinfection program simultaneously thermally disinfects, at 200°F/93°C, instruments and accessories. Areas of effectiveness are physical removal or thermal inactivation of vegetative bacteria including mycobacteria, fungi, fungal spores, and viruses.
Function of the Dental Thermal Disinfector Instruments suitable for processing in the thermal disinfector In general, only high quality stainless steel instruments are suitable for processing in the G 7881. All instruments, accessories and other items to be cleaned and disinfected in the machine should have the following properties: – heat resistance to a temperature of up to 95°C / 203°F. – corrosion resistance in the presence of heat and alkalinity.
Guide to the Dental Thermal Disinfector a "On/Off" button h Check / Refill indicators b "Door" button i Program selector c Display d "Display" button with indicator (toggles between the elapsed time, active wash blocks and actual temperature displays) e "Drying" button with indicator f "Start" button with indicator g Program sequence display 10
Guide to the Dental Thermal Disinfector a Connection for DOS module G 60 at the rear of the machine (Optional dispenser pump for liquid detergent).
Before using for the first time Load the machine carefully Before using for the first time please pay special attention to the following points: Detailed information on these points can be found in the relevant section of the Operating Instructions. Set the water softener The water softener must be set to the water hardness level of your area. Contact your local water authority to find your hardness level, in parts per million (ppm) or grains per gallon (gr/gal).
Opening and closing the door Electric door lock The machine is equipped with an electric door lock. The door can only be opened if: ^ the machine is connected to the electrical supply, ^ the ON/OFF button is pressed. Opening the door during a power failure The emergency release should only be used when the door cannot be opened normally, e.g. in the case of a power failure.
Water softener To obtain good cleaning results, the disinfector needs soft water. Hard tap water results in calcium deposits on the instruments and machine. If your tap water hardness is above 4°d, the water should be softened. This takes place by properly programming the unit's integrated water softener. – The water softener must be filled with salt for reactivation. – The disinfector must be programmed to correspond to the water hardness in your area.
Water softener Settings °d ppm gpg 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 20 40 50 70 90 110 130 140 160 180 200 220 230 250 270 290 310 320 340 360 380 400 410 430 450 470 490 500 520 540 560 580 590 610 630 650 670 680 700 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Value displayed 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 *) 20 21 22 23 24 25 26 27 28 29 30 31 3
Water softener Filling the salt reservoir ^ Remove the lower basket. Only special, coarse-grained reactivation salt should be used in this machine, available from Miele's Professional Department. Please see back page for contact information. Other salts may contain insoluble additives which can impair the water softener. These could contain components which are insoluble in water and could damage the water softener. If in doubt consult Miele's Professional Department. ^ Unscrew the salt reservoir cap.
Water softener Salt indicator ^ Clean any excess salt from the threads and seal of the container opening. ^ Screw the cap on securely. ^ Immediately run the "Rinse" program to remove any traces of salt from inside the wash cabinet. The reactivation of the water softener takes places automatically during a program cycle. During this process the, a, "Recharging" indicator lights. ^ Refill reactivation salt when the, b, "Recharge" indicator lights.
Rinse aid ,Use only special processing chemicals for dental thermal disinfectors and observe the manufacturer's recommendations for use. In particular, always observe the manufacturer's instructions regarding residual amounts that do not pose any toxicological risk. Adding rinse aid Rinse aid is necessary to allow for easy water run-off from items. The rinse aid will be filled in the storage container and dispensed automatically. The rinse aid reservoir holds approx. 180 ml.
Rinse aid Rinse aid indicator Setting the rinse aid dosage ^ Refill rinse aid when the rinse aid indicator lights. The dosage adjuster in the opening has settings adjustable from 1 to 6 (1-6 ml). It is set to 3 by default. ^ Use a higher setting if spots appear on dry items. ^ Use a lower setting if streaking appears on items.
Neutralizing agent Adding neutralizer Neutralizer causes remains of alkaline detergents on the items surface to be neutralized. ^ Place the neutralizer container (red) on the floor next to the machine or in an adjacent cabinet. The neutralizer is automatically dispensed in the program after the main wash. The container of the dispensing system must be filled and primed. See "Programming functions" for priming the dispensing system and setting the dispense amount.
Neutralizing agent Neutralizer indicator ^ Refill the container for neutralizer or replace it with a new one when the "Neutralizer" indicator lights. Remember to refill the container in time to avoid being completely emptied. ^ The indicator light should go out. ^ If the container has been allowed to run dry, the light will not go out until the priming process is performed.
Detergent Liquid Option Refilling the liquid detergent As a separate option, this machine can also be fitted with a dispenser pump for automatic liquid detergent dispensing (DOS-Module G 60). This is connected externally. Contact Miele or your authorized Miele distributor for details. ^ Replace the current detergent container with a full one. The optional DOS Module G 60 is supplied with its own installation and connection instructions.
Detergent Powder detergent ,Avoid inhaling cleaning agents in powder form. If processing chemicals are ingested, they can cause chemical burns in the mouth and throat or suffocation. The flap is always open at the end of a program. ^ Place powder detergent in the detergent compartment (except for the programs "Rinse" and "Drain"). Dispensing example The program sequence "Main wash" takes about 10.5 liters of water.
Loading the machine The disinfector can be equipped with a lower and upper basket which can be fitted with different inserts, depending on the type and form of items to be disinfected. The baskets can also be exchanged with special baskets. Select appropriate baskets and inserts for the application.
Loading the machine Loading the machine – Load the items to be washed so that water can access all surfaces. – Do not place items inside other pieces. – Water must flow through hollow instruments. – Prior to loading the machine or connecting to the machine ensure that vessels with long, narrow cavities they can be completely flushed. – Hollow vessels should be inverted and placed in the correct inserts so that water can flow in and out unrestricted.
Loading the machine Water connection spring adapter The spring adapter for water connection must engage correctly when a basket or injector unit is inserted in the machine. It must be 4-5 mm higher than the water connection inlet in the machine. If it is not, adjust the adapter accordingly. Height adjustable top basket The upper basket can be adjusted above and below the middle position by 13/16" (2 cm).
Effects of Processing Chemicals General information Effects Action Damage to elastomer (seals and hoses) or plastic components of the machine may cause the materials to swell, shrink, harden or become brittle, possibly causing cracks to form in the materials. This will impair their function, which will generally lead to leaks. – Find and correct the causes of the damage. See "Connected processing chemicals", "Soiling" and "Reactions between processing chemicals and soils" for more information.
Effects of Processing Chemicals Connected processing chemicals Effects Action The ingredients of the processing – Use only those processing chemicals recommended by Miele. chemicals have a considerable effect on the durability and functionality (feed – Perform regular visual inspections of performance) of the metering systems. the metering system. The metering systems (feed hoses and – Regularly check the feed pump) are designed for a specific type performance of the metering system.
Effects of Processing Chemicals Connected processing chemicals Effects Action The following processing chemicals can result in excessive foaming: – cleaning and rinsing agents that contain tensides, – emulsifiers. The foaming can occur: – in the program block in which the processing chemical is added, – in the subsequent program block due to carry-over, – in the case of rinsing agents, in the subsequent program due to carry-over. – The process parameters of the wash program, e.g.
Effects of Processing Chemicals Soiling Effects Action The following substances can cause – First rinse the load with a sufficient quantity of water. excessive foaming during washing and rinsing: – Select a wash program with one or more short pre-rinses with cold or – agents such as disinfection agents, warm water. dish detergents, etc. – Taking the specific application into – reagents for analysis, e.g. for account, add an antifoaming agent, microtitration plates, one without silicone oils if possible.
Use Turning on ^ Close the door. ^ Press the "On/Off" button. If the program selector is in the f position an indicator lights in the display. Starting a program ^ Turn the program selector clockwise or counterclockwise to the desired program. The display shows the first wash temperature of the selected program (except in "Rinse" and "Drain"). The "Start" indicator flashes.
Use During a program, the "Display" ß button can be used to toggle between the: – actual temperature – elapsed program time and – active wash block (depending on model): 1 = Pre-rinse 1 2 = Pre-rinse 2 3 = Main wash 1 4 = Main wash 2 5 = not applicable 6 = Interim rinse 1 7 = Interim rinse 2 8 = Interim rinse 3 9 = Interim rinse 4 10 = Final rinse 1 11 = Final rinse 2 13 = Drying Program sequence display The indicator for the active program sequence lights during the program.
Use Canceling a program ,If a program is canceled it must be run again to be complete. Canceling a program because of an interruption The program is stopped prematurely and a Fault message appears in the display. Depending on the cause the appropriate measures must be taken to correct the fault. See "Frequently asked questions". Manually canceling a program Once a program is running it should only be canceled in extreme cases, e.g.
Program guide Choose your program according to the types of instruments or utensils being cleaned and the degree of soiling. Programs (fixed) Program Description Wash Wash program without disinfection. Rinse (cold) Rinse only. To rinse items before a wash program, to avoid excessive foam. Drain For draining water out of the machine, e.g. when a program has been interrupted or the "Drain/Fill" indicator illuminates. (Turn the program selector to the "Stop" f position first).
Program guide Program Sequence 1. Pre-wash 2. Cleaning 3. Interim and/or rinse I thermal with disinfection Neutralization and/or cleaning 1) X X Cleaning 60°C/3’ 4. Interim rinse II 5. Final rinse 1) and/or disinfection 6.
Programming functions Note any adjustments of the factory settings in the provided field in case a service call is necessary. General notes – Non occupied program selector positions are displayed with a bar (-) in the middle of the display. – Turn the program selector to the f position to display the programming level, shown as E.. in the display. For all programming functions: Activate the program mode Step Display / Result ^ Turn the program selector to f. ^ Turn off the machine.
Programming functions Dispensing liquid detergent with the DOS module Setting the dosage The dispensing concentration for liquid detergent must be set. It must be set according to the manufacturer's specifications or the requirements. When dispensing powder detergent via the door dispensing system, the value must not be changed. Step Display / Result ^ Press "Drying" 0 until E02 appears in the display. E02 ^ Turn the program selector to "Wash".
Programming functions Priming the liquid detergent dispensing system The dispensing system needs to be primed: - when the dispensing concentration is set for the first time, - if the liquid detergent container runs out and is not filled in time. Step Display / Result ^ Press "Drying" 0 until E02 appears in the display. E02 ^ Turn the program selector to the 1-o'clock-position. d§1 ^ Press the "Display" ß button. The dispensing system will be primed automatically.
Programming functions Dispensing neutralizer with the DOS module Setting the dosage The dispensing concentration for neutralizer must be set according to the manufacturer's specifications or the requirements. Step Display / Result ^ Press "Drying" 0 until E02 appears in the display. E02 ^ Turn the program selector to the 1-o'clock-position. The dispensing concentration which has been set will appear in the display, e.g. 0.10 = 0.
Programming functions Priming the neutralizer dispensing system The dispensing system needs to be primed: - when the dispensing concentration is set for the first time, - if the neutralizer container runs out and is not filled in time. Step Display / Result ^ Press "Drying" 0 until E02 appears in the display. E02 ^ Turn the program selector to the 5-o'clock-position. "d§3" appears in the display ^ Press the "Display" ß button. The dispensing system will be primed automatically.
Programming functions Buzzer A buzzer can be programmed for the following functions: – End of program, constant tone, – Fault, tone in 1 second rhythm, – Signal to take a sample, 3 x short with 2 seconds break The sample extraction must be programmed by the Miele Technical Service Dept. The displayed numbers conform with the following settings.
Process documentation (optional) This machine offers the ability to document the cleaning process (process documentation) The documentation process can be completed either by an external software or an external printer. The machine is equipped with a serial interface at the back of the machine. The configuration of the interface is completed by Miele Technical Service.
Maintenance Periodic maintenance for this appliance is recommended every 1,000 hours or annually. Routine checks The routine checks must be done daily by the user before using the machine. For the routine checks a checklist is supplied with the washer. Check the following points: – the filters in the base of the wash cabinet must be empty, – the spray arms in the machine and at the baskets should be clear, When using powder detergent the temperature at the time of dosing must be checked every 2 weeks.
Cleaning and Care ,Wear protective gloves and Cleaning the coarse filter goggles when cleaning this machine. Filter combination The machine must not be used without all the filters in place. The filters protect the circulation pump from damage caused by foreign objects. 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 and Care Cleaning the fine, flat and micro-fine filters ^ Remove the coarse filter. ^ Remove the fine filter from between the flat and micro-fine filters. ^ Then remove together with the flat filter. ^ Clean the filters. ^ To unscrew the micro-fine filter, grasp the two tabs and turn twice counterclockwise. ^ Replace the filter combination in reverse order. The flat filter must lie flat in the base of the wash cabinet.
Cleaning and Care Cleaning the spray arms The spray arms can get clogged. Check daily and clean if necessary. Remove the spray arms as follows: ^ Remove the baskets. Spray arm at the upper basket or mobile unit (if available): ^ Loosen the knurled nut and remove the spray arm. Metal knurled nuts have a left-hand thread. Ceramic knurled nuts have a right-hand thread. ^ Unscrew the upper spray arm. ^ Loosen the knurled nut of the lower spray arm and remove.
Cleaning and Care Cleaning the drain pump and non-return valve The drain pump is located beneath the non-return valve (see arrow). If water has not been pumped away at the end of a program the drain pump or the non-return valve may be blocked. ^ Turn off the washer. ^ Remove the filter combination from the wash cabinet. ^ Before returning the non-return valve, check that the drain pump is not blocked. Spin the propeller several times in both directions to check for obstructions.
Cleaning and Care Cleaning the water inlet filters Cleaning the filters To protect the water inlet valve, filters are incorporated in the intake hose attached to the water faucet. If the filters are soiled they must be cleaned to ensure sufficient water intake to the wash cabinet. ^ Disconnect the machine from the main electrical supply. ,The plastic valve housing on the intake hose contains electrical components and should not be immersed, or run through water.
Cleaning and Care Cleaning the control panel ^ The control panel should only be cleaned with a damp cloth or a suitable cleaner for use on plastic materials. ,Do not use abrasive cleaners, glass cleaners or all-purpose cleaners! They will damage the control panel. Cleaning the exterior ^ Stainless steel surfaces can be cleaned using a non-abrasive stainless steel cleaner or dishwashing detergent and warm water. ^ To help prevent resoiling, a conditioner for stainless steel can also be uses.
Frequently asked questions The following guide can be used to help address minor problems without a service call. Repairs should only be performed by Miele Technical Service. Work performed by unqualified persons can place the user at considerable risk of harm. To help avoid unnecessary service calls, please be sure to check first whether an error message is due to operator error. To do this: ^ Turn the program selector to f, the fault code goes out. ^ Turn the machine off with the On/Off button.
Frequently asked questions What if ... Possible fault Before starting a program, the indicator 8 Detergent flashes. A program cannot be started. Fault code Fdo: The container for liquid detergent is empty. Solution Before fixing the fault: – Turn the program selector to f, the fault code goes out. – Turn the machine off with the On/Off button. Refill or replace the liquid detergent container. After the program has finished – Turn the machine on. – Restart the program.
Frequently asked questions What if ... Possible fault Before starting a program, the "Neutralizer" indicator flashes. A program cannot be started. Fault code Fdo: The container for neutralizing agent is empty. Solution Before fixing the fault: – Turn the program selector to f, the fault code goes out. – Turn the machine off with I-0. Refill or replace the liquid detergent container. After the program has finished – Turn the machine on. – Restart the program.
Frequently asked questions What if ... Possible fault Solution The "Recharge" The water softener has run Refill the salt reservoir. indicator flashes. out of salt. The indicator p/6 Before fixing the fault: flashes a few minutes – Turn the program after the program start, selector to f, the fault the program was code goes out. canceled. – Turn the machine off with I-0. Fault code F..E: Water intake fault – The water supply may be interrupted. Check to see that the water supply is turned on and flowing.
Frequently asked questions What if ... Possible fault The program was canceled, the indicator p/6 flashes. Fault code F..A: Drain fault Water in the wash cabinet is not heated; the program sequence takes too long. 54 Fault code F01 - F03, F18, F19 This machine has a resettable thermo switch which shuts off the heating elements in the event of over-heating. Overheating can be caused by large articles covering the heating elements or if the filters in the wash cabinet are blocked.
Frequently asked questions What if ... Possible fault Detergent is left in the dispenser at the end of a program. The dispenser was damp when detergent was added. The detergent lid was blocked by items. The powder detergent lid cannot be closed properly. Knocking noise in the wash cabinet. Rattling noise in the wash cabinet. Knocking noise in the water pipes. Instruments show corrosion. Detergent residue is blocking the catch. Solution – Remove any detergent residue. – Prepare dishes again.
Frequently asked questions What if ... Possible fault Instruments show corrosion. There is too much chloride Have the water analyzed. in the water. Probable need for external water treatment and usage of DI (deionized) water for the final rinse. The water softener is Check the water hardness programmed too low. and program the water softener to the correct value. The salt container is Refill the salt reservoir. empty. The salt reservoir cap was Reseat and screw the cap not screwed on properly. on firmly.
Frequently asked questions What if ... Possible fault The items have stains. The rinse aid dosage is set Increase the dispense too low. amount for rinse aid. The container for rinse aid Refill rinse aid. is empty. Baskets and Inserts were Rearrange items. loaded faulty or too full. Do not overload the baskets and inserts. The soiling dried on the Do not allow dirty items. instruments to sit for over 6 hours before running the Disinfection Vario cycle.
Frequently asked questions Thermo switch 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 following fault shows: F01 - F03, F18, F19 (Water in the wash cabinet is not heated, the program cycle takes too long). Please proceed as follows. ^ Remove the cause of the problem. ^ Remove the service plinth.
After sales service ,This machine must be installed, maintained and repaired by an authorized Miele service technician. Maintenance and repair work performed by unqualified persons can place the user at risk. In the event of a fault which you cannot correct yourself please contact the Miele Technical Service Department U 1-800-991-9380 techserv@mieleusa.com V 1-800-565-6435 service@miele.ca ^ Please quote the model of your machine. This information can be found on the front panel.
INSTALLATION INSTRUCTIONS
Installation Please refer to the installation diagram included with the machine. ,Furniture and fittings installed near the machine must be of a commercial standard, able to withstand the effects of steam. Undercounter installation To install the machine under a continuous countertop, the machine lid must be removed, as follows: ^ Open the door. The machine must be in a stable and level horizontal position.
Installation Positioning and securing the machine To ensure stability the machine must first be aligned and then secured to the countertop. ^ Open the door. Protecting the countertop Important for machines with steam condenser (depending on model): To prevent steam damage to the countertop, adhere the protective foil 9 13/16" x 22 13/16" (25 x 58 cm) underneath the countertop near the steam condenser.
Electrical connection ,All electrical work must be carried out by a suitably qualified electrician in accordance with local and national safety regulations. – Connection should be made via a suitable isolator, with an on-off switch which should be easily accessible for servicing work. – If the machine is hard wired to a main switch, the switch must have a contact gap of more than 3 mm and the ability to be locked in a neutral position. Only then is the switch valid as a separator.
Plumbing Connection to the water inlet ,Water in the machine is not suitable for drinking. ^ For technical application reasons, the machine is supplied as standard for connection to cold water only. The inlet hoses (water inlet and steam condenser) must only be connected to the cold water inlets. See also "DI water connection" (hose marked H2O pur). ^ The machine must be connected to the water supply in accordance with local and national regulations.
Plumbing DI water connection If required the machine can be connected as standard to a DI water supply of: Acceptable water pressure (flow rate): 10 - 147 psi Recommended water pressure (flow rate): 25 - 60 psi ^ The DI pressure-tested hose (marked "H2O pur") with a 3/4" (19 mm) GHT female hose thread must be connected onsite to the DI inlet for purified water. If the machine has a DI water connection which is not going to be used, the electronics will need to be reprogrammed by a Miele technician.
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 onsite. If separate drainage is not available contact your Miele application specialist for advice. The onsite drain connection point should be located between 1 ft. (0.3 m) and 3 ft. (1 m) above the lower edge of the machine. If it is lower than 1 ft. (0.
Technical Data Height: with lid without lid Width: Depth: Depth with the door open 33 7/16" (85 cm) 32 5/16" (82 cm) 23 5/8 " (60 cm) 23 5/8 " (60 cm) 47 1/4" (120 cm) Net weight: 154 lbs (70 kg) Voltage/Fuse: see data plate Power cord approx. 5' 11" (1.8 m) Static water pressure: max. 145 psi (10 bar) Hot and Cold Water Connection: Acceptable water pressure (flow rate) Recommended water pressure (flow rate) 10 - 147 psi (.
Help to protect the environment Disposal of the packing material The protective packing materials are environmentally safe and can be recycled. Ensure that any plastic wrappings, bags, etc. are disposed of safely and kept out of the reach of children. Danger of suffocation! Disposal of the appliance Appliances contain materials which can be recycled. Please contact your local authorities about recycling in your area. Ensure that the machine presents no danger to children while being stored for disposal.
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