Miele Tumble Dryer PDR 928 [EL SOM] – 3 AC 400V 50/60HZ, Stainless steel

Twenty‑eight kilograms at a 1:18 load ratio in a 500 litre drum defines what the PDR 928 [EL SOM] contributes to a ship’s laundry. It does that with an exhaust‑air system powered by a 27 kW electric heater and a total connected load of 28.2 kW on a 3 AC 400V 50/60HZ supply.

Those numbers matter on board because both electrical power and HVAC capacity are planned long before a laundry is fitted out. A 28.2 kW dryer on a 3 AC 400V 50/60HZ bus with a 50 A fuse rating has to be allowed for in the switchboard and in the vessel’s diversity assumptions. Heat dissipation is quoted at 3.3 MJ/h into the room, so the ventilation design can be sized with more than a rule of thumb. The maximum floor load of 3044 N and a net weight of 243.3 kg give the naval architect firm data for deck loading checks instead of estimates. For operators, an emission sound pressure level of 58 dB(A) at the workplace tells them how close they can sensibly place workstations and sorting benches.

The Benchmark‑series front loader construction with a stainless steel front and a left‑hinged door opening 180 degrees gives clear physical access to the 520 mm door opening. That opening and drum volume translate into practical capacity: the PDR 928 is rated for 20 kg at a 1:25 load ratio or 28 kg at 1:18, and the programme duration is given as 24 minutes. The specific energy consumption of 0.51 kWh/kg sits alongside a maximum evaporation capacity of 27.2 litres per hour, so the ship’s technical staff can calculate energy per kilogram of water removed as well as per kilogram of dry load.

The published loading examples are often more tangible than ratios. A single cycle can take 545 cloths at 22 g, or 266 office mops at 100 g, or 178 stairway mops at 150 g. For protective equipment, the same drum handles 12 respirator masks, 3 overalls and 5 over jackets in one run. Bedding figures include 2 synthetic duvets and 3 synthetic pillows, or 2 down duvets and 5 down pillows, plus 3 summer horse blankets. Those capacities help a superintendent match machine choice to the actual textile mix expected on board.

Control is via the M Touch Pro system, fully programmable and residual‑moisture controlled. That user interface underpins the quoted 40,000 cycle service life, because drying can be set precisely to target rather than left to overlong time‑based cycles. Remaining cycle time display, combined with a programme duration of 24 minutes, makes it straightforward to plan laundry staff workloads around the machine’s rhythm.

Build and control

• Specified for offshore installations
• Specified and approved for shipboard use
• M Touch Pro control system, programmable and residual moisture controlled
• 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 dryer fits vessels that can support a 28.2 kW, 3 AC 400V 50/60HZ exhaust‑air unit and that need short 24 minute programme durations for up to 28 kg of mixed textiles. It is less suitable where exhaust‑air duct routing is constrained or where the available electrical capacity and floor load are below the quoted 50 A and 3044 N figures.

Ordered under Miele article number 52928009SOM / material number 11722750.