Miele PDR 914 HP Commercial Heat Pump Dryer User Manual
- June 1, 2024
- Miele
Table of Contents
Miele PDR 914 HP Commercial Heat Pump Dryer
Installation notes
Installation requirements
- Risk of injury or damage to property due to improper installation. Incorrect installation of the tumble dryer can lead to personal injury or damage to property. The tumble dryer must only be installed and commissioned by Miele Customer Service Department or an authorised dealer.
- The tumble dryer must be installed in accordance with all relevant regulations and standards.
- The dryer must only be operated in a room that has sufficient ventilation and which is frost-free.
- The tumble dryer must not be installed behind a closeable door or a sliding door. The maximum opening angle of the tumble dryer door must not be limited by objects or doors. It must be possible to fully open the tumble dryer door at any time.
Electrical connection
The electrical connection must be established by a qualified electrician.
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The electrical connection may only be made to an electrical system provided in accordance with all appropriate local and national legislation, regulations and guidelines. Please also observe the regulations set out by your insurance provider and energy supplier, accident prevention regulations, as well as recognised codes of practice.
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Reliable and safe operation of this tumble dryer is only ensured if it has been connected to the mains electricity supply. The required supply voltage, power rating and fuse rating can be found on the data plate on the tumble dryer. Ensure that the supply voltage matches the voltage quoted on the data plate before establishing the electrical connection to the tumble dryer. Connection to a supply voltage other than the one quoted on the data plate can damage the tumble dryer if the voltage is too high.
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If more than one voltage is specified on the data plate, the tumble dryer can be converted for connection to the relevant input voltage. This conversion must be performed by the Miele Customer Service Department or by an authorised dealer. During the conversion, the wiring instructions given on the wiring diagram must be followed.
Tip : We recommend connecting the tumble dryer to the power supply via a plug and socket so that it is easier to conduct electrical safety checks (e.g. during maintenance or repair work). It is recommended the tumble dryer is connected with a suitable plug and socket in accordance with IEC 60309-1, however if the installation requires a hard-wired connection, an all-pole means of isolation must be provided on site. Switches with a minimum contact gap greater than 3 mm are suitable disconnectors. These include circuit breakers (MCB), fuses and contactors (VDE 0660) (IEC/EN 60947) If the mains supply cannot be permanently disconnected, the isolation device (including plug and socket) must be safeguarded against being switched on either unintentionally or without authorisation. -
The tumble dryer must not be connected to devices such as timers which would switch it off automatically. If local regulations require that a residual current device (RCD) is installed, a type B residual current device (sensitive to universal current) must be used.
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If local and national installation specifications require equipotential bonding, good galvanic contact must be guaranteed. Equipotential bonding must have an earth current rating > 10 mA.
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Loud noises and risk of damage due to incorrect phase connection on heat-pump dryers.
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An incorrect phase position causes a lot of noise in tumble dryers with heat pumps and can cause damage to the compressor. When connecting a heat-pump dryer to the power connection, ensure the correct phase position according to the wiring diagram.
Peak-load negotiation
The heat-pump dyer can be connected to peak-load negotiation if this is
required. However, this is not essential, as the heat-pump dryer has been
designed for very low energy consumption. Depending on the function, switching
off the appliance externally during the drying process when the heat-pump is
in use can reduce the service life of the appliance. Please note that if it is
connected to peak-load negotiation, the heat-pump dryer must not be switched
off. Information on operating status is made available via the Miele peakload
interface. Please note that the energy requirement of all appliances that
cannot be switched off in the energy management system must be stored by the
control system.
Air intake vent
The air supply for the cooler is drawn in through the air intake vent on the
front of the machine directly from the room in which the dryer isinstalled.
There is a fluff filter in the dryer’s air intake vent which must be defluffed
regularly by hand. The air intake vent must always be kept clear. It must not
be covered.
Air outlet vent
Separate vent ducting is not required for the heat pump dryer due to the
closed air circuit. The hot air that is blown out from the heat exchanger to
cool it warms the room air. Therefore, ensure sufficient room ventilation,
e.g. by means of ventilation openings that cannot be closed. If the room is
not sufficiently ventilated, the drying time will be longer, which will also
increase the energy requirement of the dryer. The air outlet vent must never
be closed or covered by objects.
Condensate drainage
The heat pump in this tumble dryer operates according to the principle of
condensation. A separate floor drain must be provided in the installation room
for condensate produced during the drying process. The condensate drainage
point is located at the back of the heatpump dryer. The condensate must be
drained to the floor drain via a DN 30 pipe pointing downwards. It must be
ensured that condensate cannot flow back into the dryer. Any condensate that
gets back into the machine can cause damage.
Dimensions
Dimensions quoted in millimetres.
Installation
Dimensions quoted in millimetres
- Electrical connection
- Peak-load negotiation
- Condensate drainage
- Air intake vent (cool air)
- Air outlet vent
- Communication box (optional)
For setting up a connection with external systems.
(standard)
Dimensions quoted in millimetres
- Drill hole/anchor point
Installation (concrete plinth)
Dimensions quoted in millimetres
- Drill hole/anchor point
- Concrete base (on site)
Technical data
Possible voltage variants
3N AC 400 V, 50 Hz
- Standard connection
- Supply voltage 3N AC 400 V
- Frequency 50 Hz
- Power rating 5.1 kW
- Fuse rating (on site) 3×16 A
- Minimum cross-section for connection cable 5×2.5 mm²
Peak-load negotiation (optional)
- Supply voltage for control contacts AC 230 V
- Minimum cross-section for connection cable 5×1,5 mm²
- Miele recommends using a flexible connection cable with an additional isolation option to establish the connection. The isolator should remain visible once the tumble dryer has been installed and must be freely accessible.
Condensate drainage
- Condensate connector on machine side (external diameter) 30 mm
- The tumble dryer with heat pump operates according to the principle of condensation. The condensate that accumulates must be drained away separately via a floor drain. The water can be routed to the floor drain via a hose or pipe pointing downwards.
Machine data
- Machine width, total 906 mm
- Machine height, total 1400 mm
- Machine depth, total 1232 mm
- Net width of heat pump module 912 mm
- Net height of heat pump module 1400 mm
- Net depth of heat pump module 426 mm
- Niche width 1250 mm
- Recommended wall spacing (up to the front edge of the machine) 1700 mm
- Minimum wall spacing (up to the back edge of the lid) 500 mm
- Packaging width 1090 mm
- Packaging height 1526 mm
- Packaging depth 1738 mm
- Maximum gross volume 2890.9 l
- Maximum gross weight 167.7 kg
- Maximum net weight 156.4 kg
- Net weight of heat pump module 168.4 kg
- Max. floor load in operation 1740 N
- Drum diameter 850 mm
- Diameter of drum opening 520 mm
- Drum depth 480 mm
- Drum volume 250 l
- Diameter of door opening 520 mm
- Maximum door opening angle 180°
- Emission sound pressure level 51 dB(A) re 20 μPa
- Sound power level 62
- Average heat dissipation rate into the room 3.9 MJ/h
- Permissible ambient temperature range 10–40 °C
Fixing options
Fixing without plinth
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Quantity Screw size
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Tensioning strips 2
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Wood screws DIN 571 (Ø × length) 2 6×40 mm
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Plugs (Ø × length) 2 10×50 mm
If the tumble dryer is being installed without a plinth, fixing it in place is recommended. -
Fastenings for floating screed must be supplied by the customer on site.
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Fixing to concrete plinth
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Quantity Screw size
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Tensioning strips 2
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Wood screws DIN 571 (Ø × length) 2 6×40 mm
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Plugs (Ø × length) 2 10×50 mm
If the tumble dryer is being fixed to a concrete plinth on site, fixing in place is absolutely essential. Fastenings for floating screed must be supplied by the customer on site.
Options/Accessories
- Concrete base (on site)
- Minimum width 1050 mm
- Recommended height 100 mm
- Minimum height 50 mm
- Minimum depth 1200 mm
The quality of the concrete and its strength must be assessed according to the machine load. The on-site concrete plinth must be fixed adequately to the floor.