Miele Tumble Dryer PDR 918 [EL SOM] – 3 AC 230V 50/60HZ, Stainless steel

Eighteen kilograms at a 1:18 load ratio on a 325 litre drum places the PDR 918 in the main shipboard laundry rather than a small crew space. A published programme duration of 23 minutes with a maximum evaporation capacity of 18.5 litres per hour shows that this dryer is set up for fast turnaround on continuous work.

On board, the electrical figures decide where the machine fits in the ship’s power plan. The PDR 918 is an electric exhaust-air dryer with a total connected load of 18.6 kW and an electric heater rating of 18 kW on a 3 AC 230 V 50/60 Hz supply. The 50 A fuse rating needs to be reflected in the sub-distribution so selectivity and breaker settings are correct, and the dual 50/60 Hz rating lets the same model sit in fleets that mix frequency standards without modifying the appliance. Specific energy consumption of 0.52 kWh per kilogram links running cost directly to load utilisation and programme choice.

Externally the unit stands 1400 mm high, 906 mm wide and 1415 mm deep. Gross transport dimensions of 1526 × 1090 × 1925 mm need checking against gangways, doors and lifts from quay to laundry, especially where access routes are tight. With a net weight of 169.5 kg and a maximum floor load of 1928 N, the deck structure or any raised steel foundation can be verified against a defined point load. Heat dissipation is quoted as 4 MJ per hour into the room, which feeds straight into the HVAC calculation for an enclosed laundry.

The construction type is a front loader with a stainless steel front, left-hinged door and a 180 degree opening angle. A 520 mm door opening matches the textile sets listed in the specification: 13 kg at a 1:25 load ratio, 18 kg at 1:18, and individual item counts such as 295 cloths at 22 g, 68 cotton mops at 40 cm or 3 summer horse blankets. The service life is stated at 40,000 drying cycles, giving a planning basis for renewal in a Benchmark Performance Plus installation instead of guessing around hours run.

Control is via the M Touch Pro system, programmable and residual moisture controlled. That pairing, together with the residual moisture controlled user interface, is what protects textiles like 12 respirator masks, 2 overalls, 3 over jackets, 1 synthetic duvet and 3 synthetic pillows in each cycle from over-drying. A recycling rate of 94 % is a useful number where the operator is working under formal recycling or green-ship targets for equipment replacement.

Build and control

• Specified for offshore installations
• Specified and approved for shipboard use
• Remaining cycle time display
• Communication slot for network modules
• Prepared for a payment system (self-service laundries)
• Optical service interface for diagnostics
• Can be tied into a peak-load / energy management system
• WiFi networking
• Connector Box for external systems

This PDR 918 [EL SOM] is the right choice where a shipboard laundry needs short, 23 minute cycles at up to 18 kg per load and already has provision for exhaust-air ducting and make-up air. It is the wrong choice where the laundry design is built around a closed condenser or heat-pump concept with no exhaust ducting, because this model depends on an exhaust-air system to move its 18.5 litres per hour of moisture out of the room. Ordered under Miele article number 52918006SOM, material number 11934790.