Miele PW 6321 EL Washing Machine Instruction Manual

Miele PW 6321 EL Washing Machine

Product Specifications

• Model: PW 6321 EL
• Installation: Commercial washing machine
• M.-Nr.: 12 168 590

Product Usage Instructions

Installation Notes:
Ensure an equipotential bond with good contact connection is provided as per national and local regulations. Accessories for bonding need to be ordered separately.

Water Connection:

• Cold Water Connection: Connect the washing machine to a suitable hot water ring circuit for energy efficiency. Use the inlet hose with red stripes for hot water connection. If no hot water supply is available, connect the hot water inlet hose to the cold water supply using a Y-piece.
• Hard Water Connection: Ensure proper drainage to prevent faults during programs. Connect dispenser pumps with a maximum flow rate of 1500 ml/min and a maximum flow pressure of 300 kPa. Drill open sealed dispenser pump connections before use.

Optional Accessories:
Use only genuine Miele spare parts and accessories to maintain warranty validity and avoid liability issues.

Frequently Asked Questions (FAQ)

• Do I need to provide an equipotential bond during installation?
  Yes, it is essential to have an equipotential bond with good contact connection as per regulations for safety.

• Can I connect the washing machine only to a hot water supply?
  No, the machine must be connected to a cold water intake even if a hot water connection is present for functional reasons.

• How many dispenser pumps can be connected to the washing machine?
  Up to 12 dispenser pumps can be connected, each with specific flow rate and pressure requirements.

Explanation of the safety notes and warnings on the machine

Installation requirements

• The washing machine must be installed and commissioned by a Miele Service technician or by an authorised dealer.
  • The washing machine must be installed in accordance with applicable regulations and standards. Local energy supplier and water authority regulations must also be observed.
  • This washing machine must only be operated in a room that has sufficient ventilation and which is frost-free.
• This machine should not be installed or operated in any area where there is a risk of explosion!

General operating conditions

This washing machine is intended only for use in a commercial environment and must only be operated indoors.

• Ambient temperature: 0-40 °C
• Relative humidity: non-condensing
• Maximum height above sea level of location site: 2000 m
  Depending on the nature of the installation site, sound emissions and vibration may occur.
  Tip: Have the installation site inspected and seek the advice of a professional in instances where increased noise may cause a nuisance.

Installation

• Transport the washing machine to its installation site using a suitable pallet truck and remove the transport packaging.

• The washing machine must be set up on a completely level, horizontal and firm surface with the minimum stated load bearing capacity (see “Technical data”).
  Tip: A concrete floor is the most suitable installation surface. It is far less prone to vibration during the spin cycle than wooden floorboards or a carpeted surface.

• The floor load created by the washing machine is the load exerted by the area of the machine in contact with and transferred to the installation surface.

• The washing machine requires a gap of at least 50 mm on each side to allow for movement during operation. Please ensure a minimum distance of 400 mm is maintained between the rear of the appliance and the rear wall.

• The washing machine must not be installed on a carpeted floor.

• The feet of the washing machine must be secured to the fastening points on the floor using the fittings supplied.

• The fittings supplied are for bolting the machine to a concrete floor. If other floor types are present at the installation site, the fastening material must be ordered by the customer.

Electrical connection

• The electrical connection must only be carried out by a qualified electrician who must ensure that all electrical work is carried out in accordance with applicable electrical regulations and standards (BS 7671 in the UK).

  • This washing machine must be connected to an electrical mains supply that complies with local and national regulations. Please also observe your insurance and energy supplier’s regulations as well as any health and safety at work regulations.
  • The required voltage, connected load and fusing rating can be found on the data plate on the washing machine. Before connecting the machine to the power supply, please ensure that the mains supply voltage complies with the values given on the data plate.

• Connection to a supply voltage other than the one quoted on the data plate can lead to functional faults and damage the washing machine!

• If more than one voltage is quoted on the data plate, the washing machine can be converted for connection to the voltages stated.
  Conversion to a different voltage must only be carried out by a

• Miele Service engineer or by an authorised Service Partner. The wiring instructions given on the wiring diagram must be followed.
  Tip: We recommend connection to the power supply via a suitably rated plug and socket which must be easily accessible for servicing and maintenance work after the machine has been installed. An electrical safety test must be carried out after installation and after any service work.

• The machine should be connected with a suitably rated plug and socket in accordance with IEC 60309-1 or hard wired. For a hard wired connection an all-pole isolation device must be installed.

• For hard-wired machines connection should be made via a suitable mains switch with all-pole isolation which, when in the off position, ensures a 3 mm gap between all open contacts. These include circuit breakers, fuses and relays (IEC/EN 60947).

• If the mains supply cannot be permanently disconnected, the isolator switch (including plug and socket) must be safeguarded against being switched on either unintentionally or without authorisation.
  If it is necessary to install a residual current device (RCD) in accordance with local regulations, a residual current device type B (sensitive to universal current) must be used.

• An existing type A residual current device (RCD) must be exchanged for a type B RCD.

• An equipotential bond with good contact connection must always be provided in accordance with all national and local regulations.

• Accessories for equipotential bonding are not supplied and need to be ordered separately.

Water connection

• For compliance to Regulation 4 of the water regulations guide please fit the supplied double check valves to the on-site water supplies for each inlet hose used. The non-return valve prevents water from the water inlet hose from flowing back into the on-site drinking water supply.

• Non-return valves are supplied.

• The flow pressure must amount to a minimum of 100 kPa and must not exceed 1000 kPa. If the flow pressure is higher than 1000 kPa, a pressure reducing valve must be used.

• The machine must be connected to the water supply using the inlet hoses provided.
  The connection points are subject to water supply pressure.

• Turn on the stopcock slowly and check for leaks. Correct the position of the seal and screw thread if appropriate.
  Only connect the washing machine to the water supply with the hoses supplied.

Cold water connection
For the cold water connection one stopcock each with a 3/4″ external thread is required. A connector (Y-piece) can be used if required to connect 2 water inlet hoses with a ¾” screw thread to a single stopcock with a 1″ male thread.

Hot water connection

• To minimise energy consumption during operation with hot water, the washing machine should be connected to a suitable hot waterring circuit if present.
• So-called “transmission pipes” (single pipes to hot water generators) can result in cooling down of the water remaining in the pipes if not in constant use. More energy would then be consumed to heat the suds up again.
• Use the inlet hose supplied (red stripes) for the hot water connection.
• The temperature of the water intake must not exceed 60 °C on machines with electric heating (EL).
• The temperature of the water intake must not exceed 90 °C on machines with reduced heater rating (RH).
• The machine must be connected to the water supply using the inlet hoses provided.
• If there is no hot water supply at the installation location for the washing machine, the inlet hose for hot water must also be connected to the cold water supply. A Y-piece is required in this case. The cold water consumption increases accordingly to account for the missing hot water intake.
• For functional and technical reasons it is not possible to operate the machine exclusively with a hot water connection.
• Even if a hot water connection is present, the washing machine must be connected to a cold water intake.

Hard water connection

• Connection for hard water. For the hard water connection, the same requirements apply as for the cold water connection.
• If there is no hard water connection on site, the hose must be connected to the cold water connection.

Drain valve

• In the case of washing machines with a drain valve, a motorised valve is used to drain the machine. An HT DN 70 angle connector can be used for draining the machine directly into the waste water system (without a siphon) or into an on-site floor drain (with odour trap).
• Thanks to an improved closing mechanism and a larger cross-section, even the coarsest of soiling does not leave any deposits or debris behind which could result in blockages. The drain valve can also be operated manually to allow the suds container to be emptied in the event of a power outage.
• A vented drainage system is vital for unimpeded drainage.
• If several machines are connected to a single drain pipe, this should be sufficiently large to allow all machines to drain simultaneously.
• The appropriate Miele installation kit (mat. no.: 05 238 090) is available to order from the Miele Customer Service Department or your Miele dealer for venting an HT DN 70 pipe.
• If the slope for drainage is extremely steep, the piping must be vented to prevent formation of a vacuum in the machine’s drainage system.
• Slow or obstructed drainage or a backup of water in the drum as a result of undersized pipework can result in faults occurring during programmes, which will result in fault messages appearing in the display.
  Outflowing suds can be as hot as 95 °C. Danger of burning! Avoid direct contact.

Water connection for variants with reduced heater rating (RH)
The appliance should be connected to cold and hot water supplies. A minimum hot water temperature of 80 °C is recommended in order to use all programmes. Lower temperatures may result in longer programme running times or cause programmes to be interrupted. Water inlet temperatures below 60 °C are not permitted, as they can lead to significantly longer programme running times.

Water connection for variants with external heating (EH)
The appliance should be connected to cold and hot water supplies. A minimum hot water temperature of 80 °C is recommended. The use of disinfection programmes is not possible due to the absence of additional heating. The permissible wash temperatures are determined by the inlet temperature.

Dispenser pump connections

• Up to 12 dispenser pumps can be connected to the washing machine.

• Connections 1 and 2 are provided for viscous agents can also be usedfor high pressure dispensing systems with water injection. The dispensing systems must be fitted with a separate drinking water safety mechanism in accordance with EN 61770 and EN 1717. The maximum flow rate is 1500 ml/min with a maximum flow pressure of 300 kPa.
• These connectors are sealed and need to be drilled open using a 8 mm drill bit before connecting.

• Connections 3 to 12 are provided for liquid detergent. High pressure dispensing systems with water injection must not be connected to these connections. The connectors are sealed and must be cut to the diameter of the hose

• with a small saw before they are connected.
  If opened connectors are no longer required, they must be resealed using a suitable sealant (e.g. silicone).

• Connection terminals for five time-controlled dispenser pumps, which can be operated without a multifunction module, are located behind the cover adjacent to the electrical connection.

• Calibration of the dispenser pumps and regulation of dispensing quantities is carried out partly automatically for washing machines fitted with an optional multifunction module. Information regarding settings is given in the operating instructions.

• A flowmeter or flow sensors can also be connected for monitoring the dispensing quantity precisely.

• Connections for level monitoring are available for every agent dispensed.

Optional accessories

• Only use genuine Miele spare parts and accessories with this machine.
• Using spare parts or accessories from other manufacturers will invalidate the warranty, and Miele cannot accept liability.

BSK = Payment system kit

• The washing machine can be equipped with a payment system (e.g. for self-service operations) using the optional BSK payment system kit. This must be connected and programmed by a Miele Service technician. Payment systems with mechanical or electronic coin validator are available from Miele as optional accessories for individual target groups.
• The programming required for connecting a payment system must be carried out by Miele Service or an authorised Miele dealer only. A separate electrical connection is not required for a payment system.

BSS peak-load negotiation kit

• The washing machine can be connected to a peak-load shut-off or an energy management system using a BSS peak-load negotiation kit which is available as an optional accessory.

• The peak-load cut-out monitors the energy consumption of a system and deactivates individual pieces of equipment temporarily in order to ensure that certain total load limits are not exceeded. Monitoring is externally controlled.

• The kit provides three signal contacts and a neutral conductor via a terminal block. The terminal block is marked with “a”, “b”, “c”, and “d”.

  1. Output signal, start of machine operation
  2. Output signal, machine heating request
  3. Peak-load input signal, machine heating deactivated
  4. Neutral conductor

• When the peak-load function is activated the current programme is stopped and a message appears in the display on the washing machine.

• At the end of the peak-load function the programme resumes automatically.

XKM RS232 communication module

• The serial interface RS-232 can be retrofitted to the washing machine via an XKM RS 232 (optional accessory available from Miele). This communication module must only be used with Miele Professional machines that are fitted with an appropriate slot for the module.
• The data interface provided via communication module XKM RS232 complies with SELV (Safety Extra Low Voltage) in accordance with EN 60950.
• Appliances connected to this interface must also be SELV compliant.
• Communication module XKM RS 232 is supplied with a connection cable and a D-sub-connector.

Vapour and foam venting kit (APWM 063)
If excessive suds form, foam may escape from the vapour vent. To remove the foam, an optional vapour and foam venting kit can be used.

OVERVIEW

1. Electrical connection
2. Cold water connection
3. Hot water connection
4. Cold water connection (alternatively, hard water connection)
5. Cold water connection for liquid dispensing (optional)
6. Dispenser pump connections
7. Overflow
8. Communication connection
9. Drain pipe

1. Electrical connection
2. Cold water connection
3. Hot water connection
4. Cold water connection (alternatively, hard water connection)
5. Cold water connection for liquid dispensing (optional)
6. Dispenser pump connections
7. Overflow
8. Communication connection
9. Drain pipe
10. Connection for equipotential bonding

Dimensions

Standard floor anchoring

Dimensions in mm
B screw/anchor point

SOM floor anchoring

Dimensions in mm
B screw/anchor point

Voltage versions and electrical data

Standard:

| M40 x 1,5 mm

Convertible to:

Supply voltage| 3 AC 220-240V| 3 AC 220-240V
Frequency| 50 Hz| 60 Hz
Power rating| 25 kW| 25 kW
Fuse rating (on site)| 3 x 80 A| 3 x 80 A
Connection cable, min. cross-section| 4 x 25 mm²| 4 x 25 mm²
Cable gland| M40 x 1,5 mm

Standard:

| M40 x 1,5 mm

Convertible to:

Supply voltage| 3N AC 380–415 V| 3N AC 380–415 V
Frequency| 50 Hz| 60 Hz
Power rating| 31 kW| 31 kW
Fuse rating (on site)| 3 x 63 A| 3 x 63 A
Connection cable, min. cross-section| 5 x 16 mm²| 5 x 16 mm²
Cable gland| M16 x 1,5 mm

Standard:

| M16 x 1,5 mm

Convertible to:

Supply voltage| 3N AC 380-415V| 3N AC 380-415V
Frequency| 50 Hz| 60 Hz
Power rating| 10,5 kW| 10,5 kW
Fuse rating (on site)| 3 x16 A| 3 x16 A
Connection cable, min. cross-section| 5 x 1,5 mm²| 5 x 1,5 mm²
Cable gland| M16 x 1,5 mm| M16 x 1,5 mm
Supply voltage|  | 3 AC 440V
Frequency|  | 60 Hz
Power rating|  | 31 kW
Fuse rating (on site)|  | 3 x 50 A
Connection cable, min. cross-section|  | 5 x 16mm²
Cable gland|  | M16 x 1,5 mm

• Miele recommends connecting the machine via a wall socket with an all-pole means of deactivation and interlock in accordance with IEC 60309 and IEC 60947 so that electrical safety checks can be carried out easily.
• For hard-wired machines, an isolator in accordance with IEC 60947 must be installed.
• The wall socket or isolator must remain accessible at all times once the machine has been installed.
• To increase safety, Miele recommends installation of a residual current device (RCD). Only use residual current devices that are sensitive to universal current (type B).

Connection for equipotential bonding

• Connection with male thread (machine) 10 mm x 30 mm (3/8″ x 1 3/16″)
• Size of washers and nuts M 10
  An equipotential bond with good contact connection must always be provided in accordance with all national and local regulations.

Water connections

Cold water connection

• Required flow pressure 100–1000 kPa (1–10 bar)
• Maximum flow rate (if no hot water and hard water supply) 74 (79,5*) l/min
• Maximum flow rate 26 (31,5*) l/min
• Threaded union required (male thread, to be provided by customer in accordance with DIN 44991, flat sealing) 3/4″
• Length of water inlet hose supplied 2 (3) x 1550 mm
  With liquid dispensing

Hot water connection

• Maximum permissible hot water temperature 60 °C
• Required flow pressure 100–1000 kPa (1–10 bar)
• Maximum flow rate 16 l/min
• Threaded union required (male thread, to be provided by customer in accordance with DIN 44991, flat sealing) 3/4″
• Length of water inlet hose supplied 1 x 1550 mm

Hot water connection (for variants with reduced heater rating RH)

• Hot water connection (for variants with reduced heater rating) 90 °C
• Required flow pressure 100–1000 kPa (1–10 bar)
• Maximum flow rate 16 l/min
• Threaded union required (male thread, to be provided by customer in accordance with DIN 44991, flat sealing) 1″
• Length of water inlet hose supplied 1 x 1550 mm

Hard water connection

• Required flow pressure 100–1000 kPa (1–10 bar)
• Maximum flow rate 32 l/min
• Threaded union required (male thread, to be provided by customer in accordance with DIN 44991, flat sealing) 3/4″
• Length of water inlet hose supplied 2 x 1550 mm

Waste water (drain valve)

• Maximum waste water temperature 95 °C
• Machine-side drain connection (external diameter) HT DN 70
• On-site drain (internal diameter) 75 x 1,9 x 110 mm (Muffe DN 70)
• Maximum flow rate 200 l/min
• A vented combined pipe is required to drain the waste water. If several machines are connected to a single drain pipe, this should be sufficiently large to allow all machines to drain simultaneously.

Securing the machine

Fittings

• 4 x wood screws DIN 571 (Ø x length) 12 mm x 90 mm
• 4 x plugs (Ø x length) 16 mm x 80 mm
• Fixing the machine in place is absolutely essential.
• Fastenings for floating screed must be supplied by the customer on site.

Floor anchoring

• Required anchor points 4
• DIN 571 wood screw (diameter x length) 12 mm x 90 mm
• Rawl plugs (diameter x length) 16 mm x 80 mm

Emissions

• Average heat dissipation rate to installation room 6,1 MJ/h
• Emission sound pressure level in the workplace 73 dB(A) re 20 μPa

Machine data

• Machine width (without add-on components) 1616 mm
• Machine height (without add-on components) 1718 mm
• Machine depth (without add-on components) 1070 mm
• Machine width, total 1616 mm
• Machine height, total 1718 mm
• Machine depth, total 1070 mm
• Minimum width of loading aperture (internal diameter) 1185 mm
• Recommended distance between wall and front of machine 1800 mm
• Net weight 648 kg
• Maximum floor load during operation 8975 N
• Maximum static load 7456 N
• Maximum dynamic load 1520 N
• Maximum rotation frequency of drum 16,7 Hz

Transport data

• Packaging width 1260 mm
• Packaging height 1710 mm
• Packaging depth 1470 mm
• Gross weight 705 kg

ABOUT COMPANY

• 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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