Miele Tumble Dryer PDR 922 [EL SOM] – 3N AC 400V 50/60HZ, Stainless steel

A drum volume of 400 litres on the PDR 922 gives working load sizes of 16 kg at a 1:25 ratio and up to 22 kg at 1:18. That puts this Benchmark Performance Plus dryer in the mid-size band for shipboard laundries where daily cabin linen and workwear have to turn around in a single shift.

Service life is specified at 40,000 drying cycles, which matters aboard because these machines often run long hours without the redundancy a shoreside laundry can build in. The unit is explicitly specified and approved for shipboard use and offshore installations, so the 3N AC 400 V 50/60 Hz electrical connection and 50 A fuse rating can be integrated into a marine switchboard designed around mixed-frequency shore and vessel supplies.

The PDR 922 runs an exhaust-air drying system with a maximum evaporation capacity of 22.3 litres per hour. Specific energy consumption is 0.5 kWh per kilogram of laundry, with a typical programme duration quoted at 23 minutes under test conditions. On a vessel where hotel and technical departments share a limited power budget, the 22.5 kW electric heater rating and 23.5 kW total connected load are figures that have to be carried directly into the load analysis and any peak-load management logic.

External dimensions are 906 mm wide, 1400 mm high and 1162 mm deep. Gross transport dimensions up to 1526 × 1090 × 1254 mm set the requirement for doors and hatches during installation, while the in-service footprint and a maximum floor load of 2275 N are used by the naval architect to check deck strength and layout. The door opens 180° on a left hinge with a 520 mm clear opening, which simplifies loading bulkier items such as synthetic duvets, down duvets and over jackets listed in the capacity examples.

Residual-moisture-controlled drying with the M Touch Pro control system gives programmable cycles matched to specific onboard textiles. Capacity references such as 16 respirator masks, 3 overalls, 5 over jackets, 2 synthetic duvets, 3 synthetic pillows, 2 down duvets, 4 down pillows, 364 cloths of 22 g, or 84 cotton mops at 40 cm illustrate how a single batch can be configured on a mixed-use vessel. Heat dissipation into the room is stated as 2.6 MJ/h and the emission sound pressure level at the workplace is 62 dB(A) re 20 µPa, both important where the laundry is adjacent to accommodation or other technical spaces.

Build and control

• Front loader construction in stainless steel front
• Series Benchmark, range Performance Plus
• Residual moisture controlled user interface
• M Touch Pro control system, fully programmable
• Specified for offshore installations
• Specified and approved for shipboard use
• Remaining cycle time display
• Communication slot for network modules
• Prepared for a payment system for self-service laundries
• Optical service interface for diagnostics
• Can be tied into a peak-load / energy management system
• WiFi networking capability
• Connector Box for external systems

This dryer is a sensible choice where a shipboard laundry has a steady flow of 16–22 kg batches and wants to integrate the machine into central monitoring or energy-management systems. It is not the right fit for very small galleys or steward stations handling only a few kilograms per day; those should be looking at lower-capacity units rather than running a 23.5 kW machine well below its designed load.

For ordering and documentation this unit is designated Miele PDR 922 [EL SOM], article number 52922008SOM and material number 11895310.