Miele G 7881 Service Manual
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B Modification History When? Who? What? 06.03.2009 Reinhard BremehrVersion 9 03.12.2008 Reinhard BremehrVersion 8 06.03.2008 Reinhard BremehrVersion 7 28.08.2007 Reinhard BremehrVersion 6 21.05.2007 Reinhard BremehrVersion 5 17.04.2007 Reinhard BremehrVersion 4 30.11.2005 Reinhard BremehrVersion 3 11.06.2002 Reinhard Bremehr Entire BTD completely revised. 10.12.2001 Reinhard Bremehr 05.11.2001 Reinhard Bremehr 15.10.2001 Reinhard Bremehr 12.10.2001 Reinhard Bremehr 04.06.2001 Reinhard Bremehr Initial compilation Descriptive Technical Documentation DTD no. 62-7881 B-1 18.09.2013, US_am This information should not be duplicated or passed on without Miele approval. All rights reserved.
C Technical Data These washer-disinfectors are supplied as free-standing models with lids. The standard built-in depth is 23.6 inches (600 millimeters). The machine connections are in the back, but utility connections should be made from the side. Connections for the connection of a Miele DOS module (two DOS modules for the G 7882) are provided at the back of the appliance. The DOS 10/30 dispenser is installed as standard. If the machine is to be installed under a countertop, an additional cover plate is required if the countertop is not sealed against water. x Machine Data for G 7881, G 7882, G 7883 Non-CD models CD models Height (with lid) 33.5”(850mm) 33.5”(850mm) Building-under height (without lid) 32.3”(820mm) 32.3”(820mm) Width 23.5”(598mm) 35.3”(900mm) Depth 23.6”(600mm) 27.5”(700cm) Gross weight 176 lbs (80 kg) 352 lbs (160 kg) Net weight 154 lbs (70 kg) 309 lbs (140 kg) Max. floor load in operation 280 lbs (1250N) 280 lbs (1250N) Min. access depth 23.5”(598mm) 23.5”(598mm) Min. access height 32.7”(830mm) 32.7”(830mm) Table 1:Machine Data Electrical connection via a socket is to be carried out in accordance with national regulations. The socket must be readily accessible after the installation. A fixed electrical connection is possible via an on-site main switch (lockable in the off state) providing complete isolation from the power supply. The contact gap must be at least 0.1 inches (3 millimeters). An equipotential bond should be provided, e.g., with 0.02 in 2(10 mm2) cross section. Connection variations for power and water: The machine is wired for 3-phase electrical installation, but it can be rewired for single-phase electrical installation, if necessary. x Electrical Connection - US Models Only Variant Voltage/Frequency Fuse rating (A) AWG wire Single-phase 208VAC/60Hz 2 x 30 10/3 Three-phase 208VAC/60Hz 3 x 20 12/4 Table 2:Electrical Connection Variations These machines are built in accordance with DVGW guidelines and have DVGW test certification. They can therefore be connected directly to a water supply provided in accordance with DIN 1988. Descriptive Technical Documentation DTD no. 62-7881 C-1 18.09.2013, US_am This information should not be duplicated or passed on without Miele approval. All rights reserved.
After the connection has been made and the water supply checked, the on-site shutoff valves should be closed again so that the valves and connection hoses are not under pressure. For technical application reasons, the appliance 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 the installation manual for more information. Large surface area filters are included with the machine for installing between the inlet and the inlet hose. (See the filter cleaning instructions in the operating manual.) The inlet hose mustnotbe shortened or damaged in any way. x Water Connection - US Models Only Flow Pressure 2)3)Flow RateConnection (On-Site)Hose length (supplied) Hot/ cold water 1) Min. 10 psi (0.7 bar)Nominal 25 psi (1.7 bar)Max. 145 psi (10 bar)2.1 gal/min (8 L/min)G 3/4”, male5'6”, terminating in 3/4”female thread Demin- eralized water (option- al) 1) Min. 10 psi (0.7 bar)Nominal 25 psi (1.7 bar)Max. 145 psi (10 bar)2.1 gal/min (8 L/min)G 3/4”male5'6”, terminating in 3/4”female thread Table 3:Water Connection Variations (US Only) 1)The inlet hoses (cold water, DI water (“H2O pur”) and/or steam condenser) may only be connected to cold water. 2)With flow pressure below 29 psi, the water intake time is extended (maximum 5 minutes).3)If the water pressure is not between 10 and 145 psi, theFill/DrainLED may come on and the fault code“F..E”will appear in the display. If this occurs, contact Miele’s technical service department for advice. x Drain Connection - G 7881, G 7882, G 7883 On-site drain connection dia. (mm) DN 50 (2.0”) Max. drain pump head height above base of machine 3.3' (1m) Max. brief drain flow rate 13.1 gal/min (50 L/min) Drain hose inner dia. 1)7/8” Drain hose length (supplied) 59”(1500 mm) Steam condenserDrained internally through existing drain hose Table 4:G 7881, G 7882, G 7883 Drain Connection 1)The Poly-Rex drain hose and associated clips are provided as standard. The drain hose must not be shortened. Floor drains are permissible. An extension of up to 13.1 feet (4 meters) is available. Descriptive Technical Documentation C-2 DTD no. 62-7881 This information should not be duplicated or passed on without Miele approval. All rights reserved. 18.09.2013, US_am
x Drain Connection - G 7883 CD On-site drain connection dia. (mm) DN 50 (2.0”) Max. drain pump head height above base of machine 3.3' (1m) Max. brief drain flow rate 13.1 gal/min (50 L/min) Drain hose inner dia. 1)7/8” Drain hose length (supplied) 59”(1500 mm) Steam condenser Separate drain hose and pump Table 5:Drain Connection, G 7883 CD 1)The Poly-Rex drain hose and associated clips are provided as standard. The drain hose must not be shortened. Floor drains are permissible. An extension of up to 13.1 feet (4 meters) is available. Descriptive Technical Documentation DTD no. 62-7881 C-3 18.09.2013, US_am This information should not be duplicated or passed on without Miele approval. All rights reserved.
D Layout of Electrical Components G 7881, G 7882, G 7883 Rear view. Some connections are optional. x Layout 1 1 Ground screw 2 Overflow, water intake vent 3 Condensate overflow 4 Condensate drain 5a Connection X1/2 for external DOS module (detergent) 5b Connection 2X1/2 for external DOS module (chemical disinfection) (depending on model) 6 Steam condenser 7 Steam condenser drain 8 Steam condenser intake 9 Connection for neutralization, detergent or chemical disinfection 10 Connection for neutralization, detergent or chemical disinfection 11 Connection for neutralization, detergent or chemical disinfection 12 Power cord 13 Cabinet drain hose 14 Hot water 15 Demineralized water 16 Cold water Descriptive Technical Documentation DTD no. 62-7881 D-1 18.09.2013, US_am This information should not be duplicated or passed on without Miele approval. All rights reserved.
G 7881 Components in base and door: x Layout 2 B1/1 Water intake level switch B1/7 Detergent level level switch (not shown) B1/10 Heating level switch 1B3/4 Flow meter 2B3/4 Flow meter B3/9 Speed sensor B8 Float switch B8/1 Rinse aid float switch B8/2 Reactivation salt float switch B8/3 Overflow float switch B8/6 Acidic agent float switch C6 Circulation pump capacitor F2 Temperature limiter 1F3 Winding protection (not shown) 2F3 Winding protection (not shown) 1K1/1 Heater relay (water + pulsed drying) 2K1/1 Heater relay (water only) M6 Circulation pump M7 Intake pump M8 Drain pump M9/3 Acidic agent dispenser pump M9/5 Detergent dispenser pump (not shown) M13 Condensate pump 1N1 Control module EGPL 081 2N1 Additional module EZL 031/081 3N1 Printer module EZI 040 R1 Heater element 1 - Water + drying R2 Heater element 2 - Water R3 Heater element 3 - Water 1R30 NTC temperature sensor - Water 2R30 NTC temperature check sensor - Water 3R30 NTC temperature sensor - Air (not shown) Descriptive Technical Documentation D-2 DTD no. 62-7881 This information should not be duplicated or passed on without Miele approval. All rights reserved. 18.09.2013, US_am
S2 Main switch 1S4 Door switch (door state) 2S4 Door switch (open door) T1 Transformer X1/2 Dispenser system socket X3/1 Terminal block X3/2 Connector for heater elements X5 Connector X5/2 Drying unit connector (not shown) Y1 Double solenoid (WaterProof system) - Cold water Y12 Double solenoid (WaterProof system) - Hot water Y20 Double solenoid (WaterProof system) - Demineralized water 1Y22 Steam condenser solenoid (not shown) 2Y22 Steam condenser solenoid (not shown) Y38 Reactivation solenoid valve Y50 Liquid dispenser Y51 Powder detergent dispenser Y53 Release magnet Z1 Interference suppression filter Z2 Interference suppression capacitor Descriptive Technical Documentation DTD no. 62-7881 D-3 18.09.2013, US_am This information should not be duplicated or passed on without Miele approval. All rights reserved.
G 7882 Components in base and door: x Layout 3 B1/1 Water intake level switch B1/7 Detergent level level switch B1/10 Heating level switch 1B3/4 Flow meter 2B3/4 Flow meter B3/9 Speed sensor B8 Float switch B8/1 Rinse aid float switch B8/2 Reactivation salt float switch B8/3 Overflow float switch B8/6 Acidic agent float switch C6 Circulation pump capacitor F2 Temperature limiter 1F3 Winding protection 2F3 Winding protection 1K1/1 Heater relay (water + pulsed drying) 2K1/1 Heater relay (water only) M6 Circulation pump M7 Intake pump M8 Drain pump M9/3 Acidic agent dispenser pump M9/5 Detergent dispenser pump M13 Condensate pump 1N1 Control module EGPL 081 2N1 Additional module EZL 031/081 3N1 Printer module EZI 040 R1 Heater element 1 - Water + drying R2 Heater element 2 - Water R3 Heater element 3 - Water 1R30 NTC temperature sensor - Water 2R30 NTC temperature check sensor - Water 3R30 NTC temperature sensor - Air Descriptive Technical Documentation D-4 DTD no. 62-7881 This information should not be duplicated or passed on without Miele approval. All rights reserved. 18.09.2013, US_am
S2 Main switch 1S4 Door switch (door state) 2S4 Door switch (open door) T1 Transformer 1X1/2 Dispenser system socket 2X1/2 Dispenser system socket X3/1 Terminal block X5 Connector X5/2 Drying unit connector Y1 Double solenoid (WaterProof system) - Cold water Y12 Double solenoid (WaterProof system) - Hot water Y20 Double solenoid (WaterProof system) - Demineralized water 1Y22 Steam condenser solenoid 2Y22 Steam condenser solenoid Y38 Reactivation solenoid 1Y50 Liquid dispenser 2Y50 Liquid dispenser Y51 Powder detergent dispenser Y53 Release magnet Z1 Interference suppression filter Z2 Interference suppression capacitor Descriptive Technical Documentation DTD no. 62-7881 D-5 18.09.2013, US_am This information should not be duplicated or passed on without Miele approval. All rights reserved.
G 7882 CD Components in base and door: x Layout 4 1B1/2 Level switch, pressure monitor 2B1/2 Level switch, pressure monitor B1/1 Water intake level switch B1/7 Detergent level level switch B1/10 Heating level switch 1B3/4 Flow meter 2B3/4 Flow meter B3/9 Speed sensor B8 Float switch 1B8 Float switch, liquid monitor 2B8 Float switch, liquid monitor B8/1 Rinse aid float switch B8/2 Reactivation salt float switch B8/3 Overflow float switch B8/6 Acidic agent float switch C6 Circulation pump capacitor F2 Temperature limiter F7 Fine-wire fuse 1F3 Winding protection 2F3 Winding protection 1K1/1 Heater relay (water + pulsed drying) Descriptive Technical Documentation D-6 DTD no. 62-7881 This information should not be duplicated or passed on without Miele approval. All rights reserved. 18.09.2013, US_am