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Miele G 7893 Operating And Installation Instructions

Miele laboratory glassware washer operating and installation instructions
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Operating and Installation
Laboratory Glassware
G 7893
en - US, CA
To prevent accidents
and machine damage
read these instructions
installation or use.
M.-Nr. 07 125 720



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  Summary of Contents for Miele G 7893

  • Page 1 Operating and Installation Instructions Laboratory Glassware Washer G 7893 en - US, CA To prevent accidents and machine damage read these instructions before installation or use. M.-Nr. 07 125 720...
  • Page 2: Table Of Contents

    Contents IMPORTANT SAFETY INSTRUCTIONS....... . . 4 Description of the machine ......... . 8 Guide to the lab washer .
  • Page 3 DOS 1 (liquid detergent) ..........35 Setting the detergent dosage .
  • Page 4: Important Safety Instructions

    Follow the product manufacturer's instructions. Miele will not be held liable for damage caused by incorrect use of any kind. The installation of this unit in non stationary locations (e.g. ships) must be...
  • Page 5 Take care when handling processing chemicals (detergents, softeners, neutralizers, etc.). These may contain irritant or corrosive ingredients. Do not use organic solvents as these could cause an explosion. Wear protective gloves and goggles. With all chemical agents the manufacturer’s safety conditions must be observed. Do not stand, sit or lean on the opened machine door.
  • Page 6 After any interruption, the program should be restarted from the beginning. Only use cleaning agents formulated for special processes and approved by Miele for use with this machine. Use of unsuitable cleaning agents could adversely affect the components of the machine.
  • Page 7 Miele mobile units, baskets and inserts. Adequate cleaning results cannot be guaranteed when non-Miele accessories are used, or when Miele accessories are altered. Damages resulting from the use of unsuitable accessories are not covered by the warranty.
  • Page 8: Description Of The Machine

    Description of the machine Miele laboratory washers are designed to clean, rinse, and dry laboratory equipment. In this operating manual, the general term "labware" is used to cover a range of laboratory equipment. Always follow the labware manufacturer's instructions. Individual...
  • Page 9: Guide To The Lab Washer

    a "On/Off" button b "Door" button c Display d "Display" indicator e "Drying" indicator f "Start" indicator g "Start" 6 button h "Drying" 0 button i "Display" ß button (toggles between the elapsed time, active wash blocks and actual temperature displays) Guide to the lab washer j "8 Dosing pump"...
  • Page 10 Guide to the lab washer a Connection for optional DOS-Module G 60 b Service compartment c Filter combination d Salt reservoir (water softener) e Powdered detergent dispenser f Rinse aid reservoir (with dosage selector) g Rinse aid level indicators...
  • Page 11: Opening And Closing The Door

    Electric door lock The machine is equipped with an electric door lock. The door can only be opened when ^ the electrical supply to the machine is turned on, and the ^ On/Off switch is pressed. To open the door ^ Press the "Door"...
  • Page 12: Water Softener

    Water softener Before using the machine for the first time, the water softener should be programmed. The water needs to be softened to avoid calcium deposits on the items being cleaned and in the machine itself. If the water supply is harder or softer than the factory setting (including below 4 gr/gal or 70 ppm), the setting will need to be changed.
  • Page 13 Settings Settings gr/gal 1 - 30 1 - 30 19 *) *) factory setting Settings CaCO 31 -60 Water softener gr/gal 31 -60 CaCO 1010 1030 1040 1060 1080...
  • Page 14: Filling The Salt Reservoir

    Filling the salt reservoir Only special, coarse-grained reactivation salt* should be used in this machine. *Available from Miele. Please see back page for more information. Do not use other types of salt, e.g. table salt, agricultural or gritting salt. These...
  • Page 15: Salt Indicator

    Water softener Salt indicator When the salt reservoir is empty, the "Recharge Softener" indicator b lights to remind you to fill the reservoir. Reactivation takes place automatically as needed during a program. The "Recharging" indicator a lights while this is occurring.
  • Page 16: Rinse Aid

    Rinse aid is not used in laboratory glassware cleaning applications. If rinse aid is required, the rinse aid dosage must be activated with assistance from Miele Technical Service. Rinse aid (e.g., MieleClear) is filled in the storage container, and the selected dose is then dispensed automatically.
  • Page 17: Rinse Aid Indicator Light

    Rinse aid indicator light ^ Rinse aid does not need to be refilled until the "Rinse aid" indicator light comes on in the display. Setting the rinse aid dosage The dosage selector has settings from 1 to 6 (1 - 6 ml). The factory setting is at 3 (3 ml).
  • Page 18: Neutralizing Agent

    Neutralizing agent Adding neutralizer Neutralizer has an acidic pH, and works by neutralizing any traces of (alkaline) cleaner from the surface of the glassware. When a mild alkaline detergent is used for washing, select a neutralizer that contains phosphoric acid. The neutralizer is automatically dispensed during the second rinse after the main wash cycle.
  • Page 19: Neutralizer Indicator Light

    Neutralizer indicator light ^ When the "Neutralizer" indicator comes on, it is important to promptly refill or exchange the neutralizer container. Make sure to refill / exchange the container before it becomes completely empty. Neutralizing agent...
  • Page 20: 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 for details. The optional DOS Module G 60 is supplied with its own installation and connection instructions.
  • Page 21 ^ Load the detergent into the compartment. Dosage: To achieve a detergent concentration of approximately 3 g/l, use 30 g of detergent. Always follow the detergent manufacturer's recommendations for dosage concentration. ^ Snap the cover closed. Detergent...
  • Page 22: Loading The Machine

    Loading the machine Depending on the type of labware you wish to clean, the washer can be used with an upper basket, lower basket, or injector wagon, as well as an assortment of inserts and special baskets to suit your needs. Baskets and inserts should be properly selected to match the application desired.
  • Page 23 Loading the machine – Always load items in a way that all surfaces are exposed. This ensures that the items will be properly cleaned. – Do not nest any items inside other items. Keep each item separate. – Hollow vessels must be arranged for complete inside exposure to the cleaning water.
  • Page 24: Spring Adapter For The Water Connection

    Loading the machine Spring adapter for the water connection The spring adapter for the water connection must be properly engaged when a basket or the injector wagon is inserted into the machine. It must be 4 - 5 mm higher than the water inlet in the machine.
  • Page 25 Laboratory equipment Wide-necked labware, e.g., beakers, wide-necked Erlenmeyer flasks and Petri dishes, or cylindrical items, e.g., test tubes, can be cleaned inside and out by the rotating spray arms. For proper cleaning, load these items in whole, half or quarter inserts, and place them in an empty lower basket or upper basket with spray arm.
  • Page 26 Loading the machine Upper basket O 188 For various inserts. Lower basket U 874 For various inserts. E 106 Stainless steel half insert with 28 spring hooks in 2 different heights for various glassware, e.g. narrow necked flasks, graduated cylinders, medicine bottles, etc.
  • Page 27 E 350 Injector wagon For narrow necked glassware, 15 injectors, 160 mm high; 18 injectors, 220 mm high. Loading the machine O 187 Injector wagon (Upper basket) For direct injection of narrow necked glassware, 34 injectors,160 mm high.
  • Page 28: Use

    Turning on ^ Close the door. ^ Press the On/Off button. If the program selector is in the f position, an indicator light will appear in the display. Starting a program ^ Turn the program selector clockwise or counterclockwise to the desired program.
  • Page 29: Program Sequence Display

    Once a program cycle has started, all other programs are locked until completion. If the program selector is turned to a different program, the display goes out. The display will re-appear if the program selector is turned back to the running program. During a program, the "Display"...
  • Page 30: End Of A Program

    End of a program Once the "Start" indicator goes out, and the "Complete" indicator comes on, the program has ended. You will see a 0 in the middle of the display, and all other indicators will show a running light. A buzzer sounds for a maximum of 30 seconds by default.
  • Page 31: Canceling A Program

    Canceling a program Avoid canceling a running program unless absolutely necessary, for example if the glassware is moving around excessively or the wrong program has been selected. In cases of officially recognized epidemics, contaminated water must NEVER be drained from the machine.
  • Page 32: Program Guide

    93°C - 10' bactericidal, and virus-inactivating). CW = cold water, HW = hot water, DI = distilled water, °F (C°) = Temperature, min = holding time * The DOS 2 rinse aid dosage must be activated by Miele Technical Service Description...
  • Page 33: Program Sequence

    Pre-Wash Main Wash DOS 3 50°C 1 min DOS 1 65°C 3 min DOS 1 55°C 5 min DOS 1 93°C 10 min x = Additional function DOS 1 = Detergent dosage from 131°F (55°C) DOS 3 = Neutralizer dosage after water inflow Program sequence Rinse Rinse...
  • Page 34: Programming Functions

    Programming functions For future servicing, be sure to document any changes made to the factory settings in the fields provided. General information: – Program selector positions that have no assigned function are represented by a bar ( - ) in the middle of the display. –...
  • Page 35: Dos 1 (Liquid Detergent)

    DOS 1 (liquid detergent) Setting the detergent dosage The dosage concentration only needs to be set for liquid detergents. Set the concentration according to the detergent manufacturer's recommendations. Do not change the setting if you are using powdered detergent in the door dispenser.
  • Page 36: Dos 3 (Neutralizer)

    Programming functions DOS 3 (neutralizer) Setting the neutralizer dosage Set dosage concentration according to the neutralizer manufacturer's recommendations. Step ^ Press the "Drying" 0 button until E02 appears in the display. ^ Turn the program selector to "Intensive". ^ Press and hold the "Display" ß button until the required value appears in the display, e.g., 0.2.
  • Page 37: Buzzer

    – an error signal that beeps in 1-second intervals, and – a sample-collection signal (allows a sample of the final rinse water to be collected) that beeps in sets of 3 followed by a 2-sec pause. Contact Miele Technical Service to program the sample-collection signal.
  • Page 38: Changing Program Parameters

    Programming functions Changing program parameters The factory settings for various parameters are listed in the "Program Guide". Program parameters cannot be changed unless they are activated within a given program (see "Program Guide"). It is important to document any changes e.g., by recording them in the corresponding column in the program guide.
  • Page 39: Changing The Temperature

    Changing the temperature Step ^ Press and hold the "Drying" 0 button until the setting of the desired program block appears in the display. ^ Set the program selector to the program you wish to change, e. g., "Custom". ^ Press and hold the "Display" ß button until the desired value appears in the display, e.g., 70 °C.
  • Page 40: Restoring The Factory Settings

    Programming functions Restoring the factory settings Step ^ Press and hold the "Drying" 0 button until E33 appears in the display. ^ Turn the program selector to a program. Default factory setting(s): Re-programmed setting(s): ^ When PP appears in the display, press the "Display"...
  • Page 41: Setting The Time And Date

    Setting the time and date The date and time are set in the serial interface (optional accessory). This information appears in the print log. The date and time can be changed, e.g., from daylight saving to standard time. Use the program selector to activate the desired time and date: 1 o'clock position: Calendar day 01 - 31 2 o'clock position: Month 3 o'clock position: Year...
  • Page 42: Resetting The Filter Timer Of The Drying System

    Programming functions Resetting the filter timer of the drying system Each time the filter is changed the filter timer must be reset. Step ^ Press and hold "Drying" 0 until E04 appears in the display. Turn th program selector to "Plastic". ^ Press "Display"...
  • Page 43: Data Transfer (Optional)

    The serial interface is RS 232 compatible. Various printer types with Epson-compatible fonts can be used for printing. Miele Technical Service maintains a list of recommended printers. Pin assignment 9-pin sub-D connector: GND (ground) TXD (send) 1-4-6...
  • Page 44: Maintenance

    Maintenance Periodic maintenance for the machine is recommended 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: –...
  • Page 45: Cleaning And Care

    Wear protective gloves and goggles when cleaning this machine. Cleaning the filters in the wash cabinet The machine must not be used without all 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.
  • Page 46 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. ^ To unscrew the micro-fine filter, grasp the two tabs and turn twice counterclockwise.
  • Page 47: Cleaning The Spray Arms

    Cleaning the spray arms The spray arms can get clogged. Check daily and clean if necessary. Removing the spray arms ^ Remove the baskets. Spray arm at the upper basket or mobile unit (if available): ^ Loosen the knurled nut and remove the spray arm.
  • Page 48 Cleaning and Care 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. ^ Turn off the machine. ^ Remove the filter combination out of the wash cabinet.
  • Page 49: Cleaning The Water Inlet Filters

    Cleaning the water inlet filters To protect the water inlet faucet, filters are incorporated in the intake hose attached to the water supply. If the filters are soiled they must be cleaned to ensure sufficient water intake to the wash cabinet. The plastic housing of the water connection contains electrical components and should not be...
  • Page 50: Drying System Maintenance

    Changing the filter The filter must be changed when SF2 flashes in the display. To ensure proper function, use only original Miele HEPA filters. ^ Open the service compartment. ^ Remove the old filter and insert and new one. ^ Close the service compartment.
  • Page 51: Cleaning The Control Panel

    Cleaning the wash cabinet The wash cabinet is mostly self cleaning. If deposits have built, contact Miele for info. Cleaning the door seal Clean the door seal regularly with a damp cloth to remove soiling.
  • Page 52: Baskets And Inserts

    Cleaning and Care Baskets and inserts To ensure the function of baskets and inserts, they must be checked daily. A checklist is supplied with the machine. Check the following points: – Are the rollers in the proper condition and are they securely fixed in the mobile unit/insert? –...
  • Page 53: Frequently Asked Questions

    ^ Press the On/Off button to switch off the machine. ^ Turn the machine back on and re-start the program. ^ If the error occurs again and cannot be corrected, contact Miele Technical Service for assistance. ^ You will need to provide the error code ( "F...") .
  • Page 54 Frequently asked questions What if... Before the start of a program, the "8 Dosing Pump" indicator flashes, and the program can not be started. A few minutes after the start of a program, the "8 Dosing Pump" indicator flashes, and the program stops.
  • Page 55 What if... Before the start of a program, the "Neutralizer" indicator flashes, and the program can not be started. A few minutes after the start of a program, the "Neutralizer" indicator flashes, and the program stops. Frequently asked questions Possible fault Error message: Fdo: The neutralizer container is empty.
  • Page 56 Frequently asked questions What if... The "Recharge" indicator flashes. A few minutes after the start of a program, the "Fill/Drain" indicator flashes, and the program stops. Possible fault The water softener has run out of salt. Error message: F..E: There is a problem with the water intake.
  • Page 57 What if... The rinse program is interrupted and the "Fill/Drain" indicator light is flashing. The water in the wash cabinet does not get hot; the program sequence lasts too long. Frequently asked questions Possible fault Error message: F..A: There is a problem with the water out take.
  • Page 58 Frequently asked questions What if... After a program, there is powdered detergent residue left behind in the door dispenser. The powdered detergent dispenser cover will not close. A banging noise can be heard in the wash cabinet. A rattling noise can be heard in the wash cabinet.
  • Page 59 What if... Items made of glass show signs of corrosion. Items made of stainless steel show signs of corrosion. Frequently asked questions Possible fault The items are not washer-safe. No neutralization took place in the program sequence. Excessively high temperatures are causing glass corrosion.
  • Page 60 Frequently asked questions What if... There are white deposits and/or spots on the labware. Possible fault The water softener setting is too low. Too much powder detergent is being used. The neutralizer is not dispensing properly. There is no reactivation salt in the reservoir.
  • Page 61 What if... The wash result is unacceptable. Frequently asked questions Possible fault The baskets and inserts were incorrectly loaded or overcrowded. The program used was not suited to the type/amount of soiling. The detergent used was not suited to the type/amount of soiling.
  • Page 62: Thermo Switch

    Please proceed as follows. ^ Remove the cause of the problem. ^ Remove the service plinth. ^ Press the reset button on the temperature sensor on the right side. If this switch trips repeatedly, contact the Miele Technical Service Department.
  • Page 63: After Sales Service

    In the event of a fault which you cannot correct yourself please contact the Miele Technical Service Department 1-800-991-9380 1-800-565-6435 ^ Please quote the model of your machine. This information can be found on the machine’s front panel.
  • Page 65: Installation Instructions

  • Page 66: Installation

    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 and condensation. The machine must be installed in a stable and level position.
  • Page 67 " (25 x 58 cm) underneath the countertop near the steam condenser. Cover plate (protects the countertop) Depending on the requirements for installation, a cover plate can be ordered from Miele. This protects the underside of the countertop from steam damage. Installation...
  • Page 68: Electrical Connection

    The wiring diagram is supplied with the machine. See also the supplied installation diagram. A damaged power cord must only be replaced with a genuine Miele cord by a Miele service technician. WARNING THIS APPLIANCE MUST BE GROUNDED Grounding connection...
  • Page 69: Plumbing

    25 - 60 psi. If the water pressure is below 30 psi, the fill time will take longer. If the "Fill/Drain" indicator fault code "F..E" lights, contact the Miele Technical Service Department. – The maximum permissible static water pressure is 145 psi over pressure.
  • Page 70 DI purified water. If the DI water connection is not used, the electronic needs to be reprogrammed by Miele Technical Service. The water intake hose remains at the rear side of the machine.
  • Page 71 ^ The machine should preferably be connected to a separate drainage system onsite. If separate drainage is not available contact Miele Technical Service 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.
  • Page 72: Technical Data

    Technical data Height with lid Height without lid Width Depth Depth with door open Net weight Voltage / Fuse Power cord Water temperature: Cold water Hot and DI water connection Static water pressure Hot, Cold and DI Water Connection: Acceptable water pressure (flow rate) Recommended water pressure (flow rate)
  • Page 73: Caring For The Environment

    Disposal of the packing materials The cardboard box and packing materials protect the appliance during shipping. They have been designed to be biodegradable and recyclable. Ensure that any plastic wrappings, bags, etc. are disposed of safely and kept out of the reach of children. Danger of suffocation! Please recycle.
  • Page 76 Alteration rights reserved / 2408 M.-Nr. 07 125 720 / 00...