Miele PWM 520 EH Professional Washing Machine Instruction Manual
- June 1, 2024
- Miele
Table of Contents
PWM 520 EH
Installation Plan Commercial Washing Machine
Installation notes
Explanation of the safety notes and warnings on the machine
| Read the operating instructions
---|---
| Read all the instructions, e.g., the installation instructions
| Warning, hot surfaces
| Warning, voltage up to 1000 volts
| Grounding
| Equipotential bonding
Installation requirements
The washing machine must be installed by Miele Service or by properly trained
staff of an authorized dealer.
- This washing machine must be installed in accordance with all relevant regulations and standards. Local energy supplier regulations must also be observed.
- This washing machine must only be operated in a room that has sufficient ventilation and which is frost-free.
The washing 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: 32-105°F (0-40°C)
- Relative humidity: non-condensing
- Maximum height above sea level of location site: 6500 ft (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
specialist in instances where increased noise may cause a nuisance.
Installation
This washing machine must be transported to its installation site using a
suitable pallet truck. 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 for this
machine. 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 2″ (50 mm) on each side to
allow for movement during operation. Please ensure a minimum distance of 15
3/4″ (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 fixtures and fastenings supplied.
The material provided is intended for use in bolting the machine to a concrete
floor. If other floor types are present at the installation site, the fixtures
and fastenings must be provided by the customer.
Installation on concrete base
The washing machine can be installed on a concrete base if desired.
The concrete materials and the durability of the concrete base must be
assessed in accordance with the floor load bearing capacity given in
“Technical data”.
- To guarantee the stability of the washing machine, make sure that the concrete base is sufficiently stable on the floor and that it is capable of withstanding any burden or force from the washing machine.
- The washing machine must be secured to the concrete base using the fixtures and fastenings supplied.
The washing machine must be secured to the base immediately after
installation!
There is a risk of the washing machine falling off a raised base during a spin
cycle if it is not secured.
Leveling the machine
- Align the washing machine vertically and horizontally using the adjustable feet and a level.
The washing machine must stand perfectly level on all four feet to ensure safe and proper operation. Otherwise water and energy consumption will be increased and the machine could move.
- After aligning the machine tighten the lock nuts by turning them in a counterclockwise direction with a wrench. This will prevent the feet from moving.
Securing the machine
- The feet of the washing machine must be secured to the concrete base using the fixtures and fastenings supplied.
Fittings supplied are for installation on a concrete floor. For other types of flooring please purchase suitable fitting materials separately.
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.
- The washing machine must be connected to an electrical 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, power consumption and specifications for external fusing are quoted on the data plate on the washing machine. Ensure that the supply voltage complies with the voltage quoted on the data plate before connecting the washing machine to the power supply.
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 authorized Service Dealer. The wiring instructions given on the wiring diagram must be followed.
The washing machine can either be hard-wired or connected via a plug and
socket that complies with national codes and regulations. For a hard-wired
connection an all-pole isolation device must be installed on site.
For hard-wired machines connection should be made via a suitable switch with
all-pole isolation which, when in the off position, ensures a 1/8″ (3 mm) gap
between all open contacts. These include circuit breakers, fuses and relays.
If the power supply cannot be permanently disconnected, the isolator switch
(including plug and socket) must be safeguarded against being switched on
either unintentionally
or without authorization.
Tip: We recommend connection to the power supply via a suitable plug and socket which must be easily accessible for servicing and maintenance work after the machine has been installed.
- If it is necessary to install a residual current device (RCD) in accordance with local regulations, a type B residual current device (sensitive to universal current) must be used.
An existing type A residual current device (RCD) must be exchanged for a type B RCD.
Equipotential bonding must be in accordance with all national and local
regulations.
Accessories for equipotential bonding are not supplied and need to be ordered
separately.
Water connection
The washing machine must be connected to a water supply system in accordance
with local and national safety regulations. It can be connected to the water
supply without a non-return valve, if national standards permit.
The flow pressure must amount to a minimum of 100 kPa (14.5 psi) and must not
exceed an overpressure of 1,000 kPa (145 psi). If the flow pressure is higher
than 1,000 kPa (145 psi), a pressure reducing valve must be used.
The machine must be connected to the water connection using the water inlet
hoses provided.
The connection points are subject to water connection pressure.
Turn on the water supplies slowly and check for leaks. Correct the position of
the seal and screw thread if appropriate.
Cold-water connection
For the cold-water connection one shut-off valve each with a ¾” 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 faucet with a 1″ male
thread.
The water inlet hose for cold water (blue stripes) is not intended to be used
with a hot-water connection.
Warm/Hot water connection
To minimize energy consumption during operation with hot water, the washing
machine should be connected to a suitable hot water ring circuit if present.
So-called “transmission lines” (single lines to hot water generators) can
result in cooling down of the water remaining in the pipes if not in constant
use. More electrical energy would be needed in order to heat the suds.
Use the water inlet hose supplied (red stripes) for the hot water connection.
The temperature of the warm water intake must not exceed 158 °F (70 °C) on
machines with electric heating (EL).
The temperature of the hot water intake must not exceed 194°F (90°C) on
machines without heating (EH).
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, the hot water inlet hose must also be connected to the cold water supply. An additional Y-piece is required in this case. Cold water consumption of the washing machine increases accordingly to account for the missing hot water inlet.
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 inlet.
Drain valve
In the case of washing machines with a drain valve, a motorized valve is
used to drain the machine. A 2 ¾” angle connector can be used for connecting
the drain valve directly into the waste water system (without a siphon) or
into a floor drain (on-site gully with odor trap).
Thanks to an improved closing mechanism and a larger cross-section, even the
coarsest of soil 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 failure.
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.
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 program sequences,
which will result in fault messages appearing in the machine display.
Outflowing suds can be as hot as 203°F (95°C). Danger of injury by burning!
Avoid direct contact.
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 175°F (80°C) is recommended. The use of disinfection
programs 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.
Dispenser pump connections on the back of the machine
Connections 1 and 2 are provided for viscous agents and can also be used for
high-pressure dispensing systems with water injection. The dispensing systems
must be equipped with a separate drinking water safety feature in accordance
with EN 61770 and EN 1717. The maximum flow rate is 1,500 ml/min with a
maximum flow pressure of 43 psi (300 kPa).
These connectors are sealed and need to be drilled open using an 8 mm drill
bit before connecting.
Care must be taken to drill through the first wall only (I) as there is a
deflecting wall (II) 3/8″ (10 mm) behind it.
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).
External dispenser pumps are connected and calibrated via the Connector Box,
which is available as an option.
A flowmeter or flow sensors can be connected for precise monitoring of the
dispensing quantity.
Connections for level monitoring are available for every agent dispensed.
Optional accessories
Only use genuine Miele spare parts and accessories with this machine.
Using parts or accessories from other manufacturers may void the warranty, and
Miele cannot accept liability.
Hard-water kit (APWM062)
The hard-water connection on the washing machine can be retrofitted with
the optional hard-water kit (APWM062).
The additional water connection allows hard water to be used and the program
runtime will therefore be reduced. In addition, hard water is particularly
suitable for the final rinse cycles.
APWM 019/020 Connector Box
The Connector Box allows external hardware from Miele and other suppliers
to be connected to the Miele Professional Washing Machine.
Flowmeters for the water inlet can also be connected to the Connector Box
(APWM 065).
Peak load/energy management
A peak-load or energy management system can be connected via the Connector
Box.
The energy management system monitors the energy consumption of a system and
deactivates individual pieces of equipment temporarily by means of the peak-
load negotiation in order to ensure that certain total load limits are not
exceeded.
When the peak-load function is activated, the heating is deactivated and the
program stopped. A message appears in the display to inform you of this.
The program is resumed automatically when the peak-load function finishes.
Liquid dispensing connection
External liquid dispenser pumps with a “container empty” indicator and/or
flowmeter can be used via the Connector Box to dispense liquid detergents.
The dispenser pumps can only be programmed by Miele Customer Service.
It is particularly important to observe the manufacturer’s instructions when
using a combination of cleaning agents and special application products.
Base
(APWM 022/035)
The washing machine can be installed on a machine base (open or box base,
available as an optional Miele accessory).
Elevating the washing machine gives a better ergonomic working position when
loading or unloading. At the same time it facilitates the installation of a
drain connection.
The washing machine must be secured to the base immediately after
installation! The base must be secured to the floor!
There is a risk of the washing machine falling off a raised base during a spin
cycle if it is not secured.
WiFi/LAN interface
The washing machine is equipped with a WiFi/LAN interface for exchanging
data.
The data interface provided on the LAN connection complies with SELV (Safety
Extra Low Voltage) in accordance with EN 60950. The LAN connection uses a RJ45
connector in accordance with EIA/ TIA 568-B.
Connected machines must also comply with SELV.
Vapor and suds venting kit (APWM 063)
If excessive suds form, suds may escape from the vapor vent. An optional
vapor and foam venting kit can be used to remove the foam.
Installation
Standard
1. Electrical connection
2. Cold water connection
3. Warm/hot water connection| 4. Cold water connection for hard water
(optional)
5. Cold water connection for liquid dispensing
12. Drain pipe
---|---
1. Electrical connection
2. Cold water connection
3. Warm/hot water connection
4. Cold water connection for hard water (optional)
5. Cold water connection for liquid dispensing
6. Dispenser pump connections
7. Overflow and ventilation| 8. Connector Box connection
9. Connector Kit connection (optional)
10. LAN connection
11. Connector Box (optional)
12. Drain pipe
13. Connection for equipotential bonding
14. Water recovery connection (optional)
---|---
Stand
1. Electrical connection
2. Cold water connection
3. Warm/hot water connection| 4. Cold water connection for hard water
(optional)
5. Cold water connection for liquid dispensing
12. Drain pipe
---|---
1. Electrical connection
2. Cold water connection
3. Warm/hot water connection
4. Cold water connection for hard water (optional)
5. Cold water connection for liquid dispensing
6. Dispenser pump connections
7. Overflow and ventilation| 8. Connector Box connection
9. Connector Kit connection (optional)
10. LAN connection
11. Connector Box (optional)
12. Drain pipe
13. Connection for equipotential bonding
19. Water recovery connection (optional)
---|---
Installation
Standard
Stand
Floor anchoring
Technical details
Electrical version and electrical data
| Connection voltage | 240 V 1 Ph 3 Wire |
|---|---|
| Frequency | 60 Hz |
| Total amps. | 17 A |
| Max. fuse (time delay fuse) | 20 A |
| Minimum circuit ampacity | 17 A |
Water connection
Cold water connection
Required flow pressure
Maximum flow rate| 14.5-145 psi (100-1000 kPa/1-10 bar)
31.5 l/min
---|---
Threaded union required (male thread, to be provided by customer in accordance
with DIN 44991, flat sealing)| 3 x 3/4″
Length of water inlet hose supplied| 3 x 61″ (1.55 m)
Hot water connection (for variants without heating)
| Maximum permissible hot water temperature | 194 °F (90 °C) |
|---|---|
| Required flow pressure | 14.5-145 psi (100-1000 kPa/1-10 bar) |
| Maximum flow rate | 16 l/min |
Threaded union required (male thread, in accordance with DIN 44991, flat
sealing)| 1 x 1″
Length of water inlet hose supplied| 61″ (1.55 m)
Hard water connection (optional)
| Required flow pressure | 14.5-145 psi (100-1000 kPa/1-10 bar) |
|---|---|
| Maximum flow rate | 32 l/min |
Threaded union required (male thread, in accordance with DIN 44991, flat
sealing)| 2 x 3/4″
Length of water inlet hose supplied| 2 x 61″ (1.55 m)
Drainage
| Maximum drain water temperature | 203°F (95°C) |
|---|---|
| Waste water connection (on machine) | Plastic pipe HT DN 70 |
| Drain (on site) | Connection DN 70 |
| Maximum drainage rate | 200 l/min |
Connection for equipotential bonding
| Male thread | M10 |
|---|---|
| Toothed washers | M10 |
Installation dimensions
| Casing width (without add-on components) | 36 1/4″ (920 mm) |
|---|---|
| Casing height (without add-on components) | 56 15/16″ (1447 mm) |
| Casing depth (without add-on components) | 33 3/4″ (857 mm) |
| Overall machine width | 36 3/8″ (924 mm) |
| Overall machine height | 57 1/16″ (1450 mm) |
| Overall machine depth | 41 1/2″ (1053 mm) |
| Minimum width of transport opening | 40 9/16″ (1030 mm) |
| Minimum safety distance between wall and rear of machine | 54 3/8″ (1380 mm) |
| Door opening diameter | 16 5/16″ (415 mm) |
| Door opening angle | 180° |
Anchoring
Standard
| Required anchor points | 2 |
|---|---|
| DIN 571 wood screw (diameter x length) | 1/2″ x 3 1/2″ (12 mm x 90 mm) |
| Rawl plugs (diameter x length) | 5/8″ x 3 1/8″ (16 mm x 80 mm) |
With base (APWM)
| Required anchor points | 4 |
|---|---|
| DIN 571 wood screw (diameter x length) | 1/2″ x 3 1/2″ (12 mm x 90 mm) |
| Rawl plugs (diameter x length) | 5/8″ x 3 1/8″ (16 mm x 80 mm) |
Concrete plinth
| Required anchor points | 2 |
|---|---|
| DIN 571 wood screw (diameter x length) | 1/2″ x 3 1/2″ (12 mm x 90 mm) |
| Rawl plugs (diameter x length) | 5/8″ x 3 1/8″ (16 mm x 80 mm) |
Transport data, weight and floor load
| Packaging width | 43″ (1090 mm) |
|---|---|
| Packaging height | 62 3/8″ (1585 mm) |
| Packaging depth | 44 1/2″ (1130 mm) |
| Gross volume | 2 x 744 L |
| Gross weight* | 346.2 lb / 178.6 lb (157 kg / 81 kg) |
| Net weight* | 319.7 lb / 152.1 lb (145 kg / 69 kg) |
| Maximum floor load during operation* | 3250 N |
*depending on equipment configuration
Emissions data
| Workplace-related sound pressure level, washing | 50 dB (A) |
|---|---|
| Sound power level, washing | 59.2 dB (A) |
| Workplace-related sound pressure level, spinning | 63 dB (A) |
| Sound power level, spinning | 73.7 dB (A) |
| Average heat dissipation rate to installation site | 2.3 MJ/h |
| Emission sound pressure level | 65 dB (A) re 20 μPa |
Subject to change/2023-05-31
M. no. 12 173 760 / 02 ****