Miele Tumble Dryer PDR 914 [EL SOM] – 3N AC 400V 50/60HZ, Stainless steel

Fourteen kilograms at a 1:18 load ratio in a 250 litre drum puts the PDR 914 into the mid-size band for a shipboard or offshore laundry. A 24 minute programme duration and a maximum evaporation capacity of 13.3 litres per hour show that it is set up for fast turnaround of workwear, mops and textiles.

For a vessel design team, the electrical, mechanical and thermal figures frame where this unit sits. The dryer is rated at 3N AC 400 V 50/60 Hz, with a total connected load of 14.1 kW and an electric heater rating of 13.5 kW, so it connects directly to three-phase low-voltage distribution. A maximum floor load of 1779 N and a net weight of 160.4 kg allow the naval architect to check deck strength and supporting structure against published data rather than assumptions. Heat dissipation into the room is 3.9 MJ/h, a number that belongs in the HVAC calculation for an enclosed laundry that may already host several hot appliances.

The exhaust-air drying system is the defining installation constraint. At a specific energy consumption of 0.51 kWh/kg, energy use per kilogram is predictable for the ship’s energy balance, but the laundry space must still handle the moisture and warm air discharged at up to 13.3 litres of water removed per hour. External dimensions of 1400 × 906 × 852 mm (H × W × D) mean the unit occupies more deck width than compact equipment, and the gross dimensions of 1526 × 1090 × 938 mm are the right figures to use when checking doorways and passageways during installation planning. The emission sound pressure level of 51 dB(A) at the workplace is low for a mechanical room, which matters when the laundry is adjacent to accommodation or offices.

On the operational side, the PDR 914 is programmed and monitored through the M Touch Pro control system, with the user interface working on residual moisture control. That matches the short 24 minute programme duration: the machine does not run only to a fixed time, but to a target dryness. Service life is specified at 40,000 drying cycles, which gives operators an anchor for lifecycle planning and spares provisioning. The door opening measures 520 mm in diameter and opens through 180 degrees on a left hinge, a combination that makes loading bulky pieces such as duvets or summer horse blankets straightforward within the given footprint.

The loading examples give a concrete sense of capacity. At cleaning-textile scale the drum holds 255 cloths of 22 g each, 53 cotton mops at 40 cm or 45 cotton mops at 50 cm. For microfibre, the figures are 83 mops at 40 cm and 59 mops at 50 cm. In personal protective equipment terms it will handle 8 respirator masks, 1 overall and 2 over jackets in a cycle. For bedding, the load can comprise 1 synthetic duvet and 2 synthetic pillows, or 1 down duvet and 2 down pillows, and for animal-care operations it is rated for 2 summer horse blankets. Those values are directly usable when dimensioning laundry throughput on offshore installations or ferries that rely on onboard laundering of specialised textiles.

Build and control

• Specified for offshore installations
• Specified and approved for shipboard use
• Remaining cycle time display
• M Touch Pro control system, programmable
• 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
• Connector Box for external systems

This unit is the right choice where a laundry needs a 10–14 kg class exhaust-air dryer with short 24 minute cycles, integration into a peak-load management system and network connectivity. It is the wrong choice where routing an exhaust-air duct is not feasible or where any additional 3.9 MJ/h of heat into the room cannot be accepted; in such cases a different drying system from the same supplier should be considered. Ordered under Miele material number 11895080 and article number 52914002SOM.