Miele 914 HP Commercial Heat Pump Dryer Instruction Manual

Miele 914 HP Commercial Heat Pump Dryer

Product Information

Specifications

• Model: PDR 914 HP
• Installation Type: Commercial heat-pump dryer
• Dimensions: 1400mm x 906mm x 1370mm
• Weight: 168.4 kg
• Electrical Requirements: AC 230V

Product Usage Instructions

Peak-load Negotiation
The heat-pump dryer can be connected to peak-load negotiation but it is not essential. If connected, do not switch off the appliance externally during the drying process to avoid reducing the service life.

Air Intake Vent Maintenance
Regularly defluff the fluff filter in the air intake vent by hand. Ensure the air intake vent is always clear and not covered.

Air Outlet Vent
No separate vent ducting is required for the heat pump dryer. Ensure sufficient room ventilation to prevent longer drying times and increased energy consumption.

Condensate Drainage
Provide a separate floor drain in the installation room for condensate. The condensate drainage point is at the back of the dryer. Drain condensate via a DN 30 pipe pointing downwards to prevent damage.

FAQ (Frequently Asked Questions)

• Q: Can the heat pump dryer be connected to peak-load negotiation?
  A: Yes, it can be connected, but it is not essential for operation.

• Q: How should I maintain the air intake vent?
  A: Regularly defluff the fluff filter by hand and ensure the vent is always clear and unobstructed.

• Q: Do I need separate vent ducting for the heat pump dryer?
  A: No, separate vent ducting is not required due to the closed air circuit.

• Q: Where is the condensate drainage point located?
  A: The condensate drainage point is at the back of the heat pump dryer.

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.

• 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.
• 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.

• 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 advisable to connect the product via a suitably rated plug and socket in accordance with IEC-60309, otherwise for a hardwired connection an all pole means of isolation must be installed at the site.
An isolation device is a switch which ensures a contact opening of more than 3 mm. These include circuit breakers, fuses and contactors (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.

• 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.

Warning
Loud noises and risk of damage due to incorrect phase connection on heat- pump dryers.
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 peak-load 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 is installed.
• There is a fluff filter in the dryer’s air intake vent which must be de-fluffed 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 prin-ciple of condensation. A separate floor drain must be provided in the installation room for condensate produced during the drying pro-cess.
• The condensate drainage point is located at the back of the heat-pump 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 dam-age.

Dimensions

Dimensions quoted in millimetres

Installation

Dimensions quoted in millimetres

1. Electrical connection
2. Peak-load negotiation
3. Condensate drainage
4. Air intake vent (cool air)
5. Air outlet vent
6. Communication box (optional)
   For setting up a connection with external systems

Installation (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

Peak-load negotiation (optional)

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

Fixing options
Fixing without plinth

Fixing to concrete plinth

**Options/Accessories

**

Concrete base (on site)

Miele & Cie. KG
Carl-Miele-Straße 29
33332 Gütersloh
Germany
Telefon: 05241 89-0
Internet: www.miele.com/professional

References

• Professional

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