Miele Washing Machine PWM 920 [EL DV DD SOM] – 20 kg, 3 AC 400V 50 HZ, Stainless steel

Twenty kilograms at a 1:9 load ratio in a 180 l drum positions the PWM 920 as a Benchmark Performance Plus washer for a central shipboard or offshore laundry rather than a small crew space. A g‑factor of 502 at a spin speed of 1,120 rpm is matched to residual moisture of 46% with a cold rinse, 42% with a hot rinse, and 25% when processing cleaning cloths.

Ship and offshore deployment is explicit: the machine is specified and approved for shipboard use and specified for offshore installations. Electrical connection is 3 AC 400V 60 HZ with a heater rating of 18 kW, a total connected load of 19 kW and a 35 A fuse rating, so the laundry’s sub‑distribution and feeder size can be checked at design stage. Maximum floor load is 5,853 N with a net weight of 399 kg, giving naval architects defined inputs for deck loading and foundation design. Emission sound pressure level in the workplace is 67 dB(A) re 20 µPa and heat dissipation into the room is 6.48 MJ/h, both relevant for HVAC and acoustic planning in an enclosed laundry.

Water and energy figures are detailed, which matters on vessels generating their own fresh water and power. On a cold‑water connection the PWM 920 uses 6.2 l/kg, corresponding to 124 l per standard programme, at a specific energy consumption of 0.14 kWh/kg and an energy consumption of 2.8 kW. With a hot‑water supply, specific water consumption is 5.9 l/kg and total water use 118 l, with 0.06 kWh/kg and 1.2 kW energy consumption. In the ECO programme, water consumption is 116 l on cold water or 114 l on hot water, with energy figures of 2 kW and 0.6 kW respectively. Standard programme duration is 55 minutes on cold water and 44 minutes with combined cold and hot water, dropping to 35 minutes and 33 minutes in the ECO cycles.

For hygiene‑critical cleaning textiles, the Mops standard 60 °C programme is the key reference. With a cold‑water connection this programme uses 234.3 l and 4.1 kWh with a running time of 61 minutes; on hot water it takes 229 l and 1.7 kWh over 55 minutes. Tested operating hours are quoted at 30,000, which gives a clear basis for long‑term planning in a ship or offshore laundry that needs predictable availability.

Externally, the machine stands 1,450 mm high, 924 mm wide and 935 mm deep, with gross transport dimensions of 1,585 × 1,090 × 1,130 mm and a gross weight of 419 kg. Front and control panel are in stainless steel, and the recycling rate at end of life is quoted at 92%.

Build and control

• Automatic door lock
• Specified for offshore installations
• Specified and approved for shipboard use
• Independently tested virucidal efficacy
• Verified hygiene performance
• Remaining cycle time display
• Detergent empty sensor
• Three-dimensional imbalance monitoring
• Thermal disinfection rinse programme
• EcoSpeed wash rhythm for reduced water use
• Continuous wash temperature monitoring
• Heavy-duty heater element
• M Touch Pro Plus control system, freely programmable
• Detergent drawer with 4 compartments

Example loading data show what a 20 kg Benchmark washer does in practice: 456 cloths at 22 g, 106 cotton mops at 190 g, 91 cotton mops at 220 g, 200 office mops at 100 g, or 130 stairway mops at 150 g. It will also take 15 respirator masks, 5 helmets, 3 overalls, 5 over jackets, 2 chemical protection suits, 2 synthetic duvets and 4 synthetic pillows, or 2 down duvets and 4 down pillows, plus 3 summer horse blankets.

This unit belongs in a central laundry that can regularly load close to 20 kg, needs documented hygiene performance on cleaning textiles, PPE and duvets, and can support a 19 kW, 3 AC 400V 60 HZ connection. It is the wrong choice for a small crew facility that rarely approaches the 1:9 load ratio, because most cycles would run significantly under‑filled, wasting water and energy against the published 6.2 l/kg and 0.14 kWh/kg figures. Ordered under Miele material number 11683010 and article number 51920006SOM.