Miele PTD 901 Through Feed Dishwasher Instruction Manual

: June 1, 2024
: Miele

Table of Contents

Miele PTD 901 Through Feed Dishwasher
Product Information
Product Usage Instructions
Frequently Asked Questions
Introduction
Safety notes
Machine description
Software
Commissioning
Operation
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Miele PTD 901 Through Feed Dishwasher

Product Information

Specifications

Model: PTD 901, PTD 901 LIFT, PTD 901 ECO, PTD 901 LIFT ECO
Max. Input Pressure (Static Pressure): mm
Flow Rate: l
Inlet Water Temperature: °C
Color Options: Blue, Gray

Product Usage Instructions

Safety Guidelines

Ensure that only authorized personnel operate and maintain the machine. Follow all safety instructions provided in the manual.

Machine Description

The machine features various programs indicated on the display. Use the corresponding buttons to select the desired program based on the level of dirt on the dishes.

Display Functions

Start Button: Press to initiate the selected program.
Program 1: For lightly soiled dishes.
Program 2: For normally soiled dishes.
Program 3: For heavily soiled dishes.
Intensive Program: Additional program for stubborn stains.
ECO Program: Energy-efficient program for regular use.
Short Program: Quick wash cycle for lightly soiled dishes.
Soaking Program: For pre-soaking dishes before washing.
Cleaning Program: Intensive cleaning cycle for the machine itself.
Descaling Program: Program for descaling the machine.

Maintenance and Cleaning

Regularly clean the filters and ensure proper maintenance as per the manual. Use recommended cleaning agents for optimal performance.

Frequently Asked Questions

Q: How often should I clean the machine?
- A: It is recommended to clean the machine filters after every few cycles and perform a thorough cleaning at least once a month.
Q: Can I use regular dish soap in the machine?
- A: No, only use detergents specifically designed for dishwashing machines to avoid damaging the appliance.
Q: What should I do if the machine displays an error code?
- A: Refer to the manual for error code explanations. If needed, contact customer support for further assistance.

Introduction

1.1 About these operating instructions

This operating manual constitutes a component of the warewasher and must be stored in a place that is accessible to the user. To be able to work safely with the warewasher, the safety and operating instructions provided must be observed. Compliance with the valid national accident prevention regulations and general safety provisions must be ensured.

1.2 Copyright
The instructions are protected for the manufacturer by copyright. The instructions contain guidelines and drawings or parts of drawings of a technical nature, which must not be reproduced, distributed, or used for the purpose of competion without authorisation, nor shared with third parties, either in whole or in part. The operator of the warewasher is permitted to make copies, in whole or part, expressly for internal use relating to the operation of the dishwasher. The manufacturer is entitled to claim damages for any infringements. Further rights are reserved. Subject to technical alterations © 2023 by Miele & Cie. KG

1.3 Proper use
The warewasher is intended only for washing dishes, cutlery, glasses, kitchen utensils, pots, trays, plates, and GN containers for gastronomic and similar use.
Operate the warewasher with chemicals from Miele. If other chemicals are used, contact Miele or an authorised customer service team in advance.
The warewasher is a technical device for commercial use and is not intended for private use. Only operate the warewasher as described in these operating instructions.

1.4 Improper use
Do not wash without a wash rack. Do not wash electrical cooking appliances. Do not wash parts made of wood. Do not wash ashtrays or objects covered with wax. Only wash heat-resistant plastic parts and those resistant to alkalis. Do not make any changes, additions or modifications without the approval of the manufacturer.

1.5 Symbols used Ø This symbol indicates an instruction.
ð This symbol indicates the results of your actions. This symbol indicates a list. Note: Indicates an additional important piece of information. The following symbol refers to additional information: } page 46

Warning notices have the following layout:
Caution
Type and source of danger Consequences of danger
Ø Measures to avert the danger.

The danger level is indicated by the signal word.
Danger
The signal word DANGER indicates an immediate danger; ignoring it will lead to serious injury or death.
Warning
The signal word WARNING indicates a potential danger; ignoring it may lead to serious injury or death.
Caution
The signal word CAUTION indicates a potential danger; ignoring it may lead to minor or moderate injury.
Note
The signal word NOTE indicates potential damage to property.

Operating instructions

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English | 2 | Safety notes

2

Safety notes

Miele & Cie. KG assumes no liability or warranty in the event of non- compliance with these safety and operating instructions.

2.1 Operator obligations

The commercial warewasher is used in the restaurant industry and similar businesses (bakeries, butcher’s shops, etc.). The operator of the warewasher is therefore subject to the legal obligations for occupational safety. In addition to the warning and safety information in these operating instructions, the operator must comply with the current provisions regarding safety, accident prevention and environmental protection for the area of application of the warewasher. To ensure safe use of the warewasher, the operator must take the following measures:

Arrange for the warewasher to be connected by authorised technicians according to the locally applicable standards and regulations.

Provide the user with information on the provisions regarding occupational safety.

Ensure that only personnel who have read and understood the operating instructions and safety notes and are trained in handling the warewasher and the chemicals work with them.

Refer users to the safety notes and inform them of potential dangers. Repeat training sessions at regular intervals to prevent accidents.

Arrange for customer service or a specialist dealer to provide instruction in operating and using the warewasher.

Provide the user with the operating instructions and quick guide.

Operate the warewasher only when it is in perfect technical and hygienic condition.

2.2 User obligations
In addition to the warning and safety information in these operating instructions, the operator must comply with the current provisions regarding safety, accident prevention and environmental protection for the area of application of the commercial warewasher. In particular, the user must take the following measures:
Adhere to the applicable occupational safety regulations.
Follow the allocated responsibilities for installation, operation, maintenance and cleaning of the warewasher.
Read the operating instructions and safety notes.
Only work on the warewasher after receiving training in handling the warewasher and the chemicals.
Operate the warewasher only when it is in perfect technical and hygienic condition.
Switch off the warewasher immediately should a malfunction occur. Switch the warewasher back on only once the cause of the malfunction has been remedied by an authorised service technician.
Ensure cleanliness and tidiness around the warewasher.
Once the work is complete, turn off the on-site water supply.
In areas which may be subject to infestation by cockroaches or other vermin, pay particular attention to keeping the appliance and its surroundings in a clean condition at all times. Any damage which may be caused by cockroaches or other vermin will not be covered by the warranty.

2.3 Qualification requirements for personnel

Activity Connection to the mains supply
Installation, initial commissioning, maintenance, repair, recommissioning
Operation, cleaning and maintenance in daily use

User group

Qualification / training

Specialist personnel

Authorised electrician or personnel with equivalent qualification

Specialist personnel

Electrician with Miele training or Miele service technician with training as an electrician or person with equivalent qualification

Adults

Instruction and briefing regarding dangers provided by the operator, based on the operating instructions (quick guide and safety notes)

Young people over the age of 14 Instruction and briefing regarding dangers provided by the operator, based on the operating instructions (quick guide and safety notes)

Under supervision

Children under the age of 14 Not permitted

2.4 Mechanical dangers
In order to avoid the risk of slipping on wet floors when operating the warewasher, prevent dirt from accumulating on the floor and wear non-slip footwear.
In order to avoid cutting injuries on sharp metal edges, wear protective gloves for assembly and repair work. Rusting foreign bodies inside the warewasher can cause even “rust-free stainless steel” to corrode. Use only undamaged wire
grate baskets, rust-free wash items and suitable cleaning utensils to ensure that water pipes are protected from rust. In the case of installation and operation in vehicles, follow the additional requirements for unstable surfaces.

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Operating instructions

Safety notes | 2 | English
2.5 Electrical dangers
The device many only be connected to the electrical mains supply by a specialist electrical company approved by the energy supplier.
Work on the electrical system, installation and maintenance work and repairs may be carried out only by qualified specialists. The electrical engineering safety rules must be observed to avoid electrical accidents: Disconnect all poles from the power supply. Secure the machine to prevent it from being switched on again. Ensure that there is no voltage. Earth and short circuit. Cover or cordon off neighbouring parts that are live.
Do not open any machine covers if doing so requires the use of tools. There is a danger of electric shock. The electrical safety of this warewasher is guaranteed only if it is connected to a correctly installed protective circuit. Miele cannot
be held responsible for damage caused by a missing or broken interrupted protective conductor (e.g. electric shock). If the mains cable is damaged, it must be replaced by customer service or a similarly qualified person to prevent exposure to
danger. The mains cable must be a H07RN-F type or equivalent. Touching live components can lead to death by electric shock. In the event of a defect or damage to an electrical component /
cable or its insulation, switch off the power supply immediately and arrange for repair by a specialist.
2.6 Thermal dangers
Contact with hot components and surfaces can cause burns. Before installation and maintenance work and repairs, allow the warewasher and surfaces to cool down. Wear protective clothing and gloves.
When fitting additional devices, lay electrical cables and dosing hoses a sufficient distance away from hot components to prevent damage.
Do not operate the warewasher below 0°C to avoid damage to the hoses, tank and boiler and prevent functional damage.
2.7 Handling of chemicals
Contact of chemicals with the skin or eyes can lead to severe burns, eye damage and poisoning. In the event of contact with the eyes or skin, wash thoroughly with tap water and seek medical attention if necessary. Never drink chemicals or wash water or transfer them to other storage containers. Wear protective clothing, protective gloves and protective goggles when working with chemicals. Observe the danger and safety notes on the canister and safety data sheet.
2.8 Safety settings
The commercial warewasher has been built in accordance with the applicable legal provisions and is safe to operate. Danger areas that cannot be excluded by design are fitted with safety devices.
Hood limit switch All safety devices must be present and functional when operating the commercial warewasher. Safety devices must not be changed or modified.
2.9 Maintenance, repair and spare parts
Only service technicians who have been trained and authorised by Miele are permitted to carry out maintenance work and repairs. Improper maintenance or repairs may cause significant danger to the user, for which Miele cannot assume liability.
Only original Miele spare parts may be used for maintenance and repairs. If original spare parts are not used, the warranty is invalidated. The information in the spare parts catalogue is definitive in this respect.
Arrange for an installer or an electrician to remedy on-site water and electricity supply malfunctions. Arrange for other malfunctions to be remedied by an authorised service technician or dealer.

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English | 2 | Safety notes
2.10 Working space for operating personnel
If the warewasher is installed straight
If the warewasher is installed in a corner

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Operating instructions

Machine description | 3 | English

3

Machine description

3.1 Description of function

After the warewasher is switched on, the boiler and the tank are filled and heated up to the operating temperature. Once the target temperatures are reached, the warewasher is ready for use.
The warewasher is fully automatic with programmes consisting of three steps: Wash, Drain and Rinse.

3.2 Overview 1

2

3

5

6

4
13 14 15 16

78

9

10 11

12

17 18

19 20 21

Item Description 1 ECO module (only for ECO version) 2 Display
3 Start button 4 Hood 5 Lower wash field 6 Rack carrier 7 Rinse aid connection 8 Supply hose 9 Multifunction interface 10 Connection for on-site equipotential bonding system 11 Mains cable

Item Description 12 Waste water connection
13 Start button (only for LIFT version)
14 Strainer 15 Wash field bearing 16 Filter cylinder 17 Detergent connection 18 Filter bottom 19 Pump protection strainer 20 Suction tube for detergent (optional) 21 Rinse aid suction tube

Automatic hood start
Closing the hood automatically starts a washing programme. The automatic hood start can be deactivated by an authorised service technician (P572). Every washing programme will then need to be started by pressing the start button.

PTD 901 LIFT (device version) automatic hood
The hood opens automatically after every washing programme and can be closed again using the start button on the front cover.

PTD 901 ECO (device version)
Note: Cold water connection required. In the ECO module above the warewasher there is a fan motor and heat exchanger. The fan motor extracts the moist and warm air (= vapours) out of the washing compartment and transfers the generated energy to the cold inlet water via a heat exchanger. A waste water heat exchanger provides an additional energy gain.

Integral water softener (optional)
Warewasher with built-in salt container for regeneration salt. The regeneration salt softens the inlet water and thus prevents a build-up of limescale inside the warewasher and on the items being washed.

Operating instructions

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English | 3 | Machine description
3.3 Display
Operating the display is similar to operating a smartphone. The display responds to light touches. Therefore, only operate the display with your fingers and do not use any sharp objects. You can also operate the display and start button with wet hands or rubber gloves.

12

Item

Description

1

Washing programmes

2

Selection of additional programmes

3

Display area for error pictograms

4

Start button

3

4

Start button (4)
Colour No light Orange White Flashing white Orange Flashing orange
Flashing white/orange
Red

Meaning
Warewasher is switched off.
Warewasher is filling and heating up.
Warewasher is ready for use.
Washing programme has ended; hood has not been opened yet.
Warewasher is washing.
Soaking programme is running.
Only for warewashers with automatic hood mechanism: The hood moves down, a washing programme then starts automatically.
Only for warewashers with ECO module: Warm, humid air is being extracted. The washing programme is completely finished only when the start button flashes white.
The warewasher has stopped washing because there is a serious error.

Screen saver
The display is dimmed if it is not used for a long time. Washing can also be carried out when the display is darkened.

3.4 Washing programmes
The washing programmes differ depending on the type of warewasher, as they are adapted to the respective wash items. The authorised service technician can adjust programmes (temperature, wash pressure, dosing, and programme length). Programme 2 is pre-selected as soon as the warewasher is ready for operation.

Warewasher type Dishwasher

Programme 1 Slightly dirty dishes

Programme 2

Programme 3

Moderately dirty dishes

Very dirty dishes

Pictogram / additional programme Intensive programme

Meaning Longer wash time for heavy soiling

Silence programme ECO programme

Quieter washing programme that uses reduced wash pressure and longer wash time
Longer wash time with reduced use of resources

Short programme

Shortened wash time with slightly higher detergent consumption

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Operating instructions

Pictogram / additional programme Soaking programme
Pictogram / special programme Basic cleaning programme
Descaling programme

3.5 Info menu 1

23

Machine description | 3 | English
Meaning Programme for soaking and dissolving dried-on residues (} page 73)
Meaning Menu-guided programme for thorough cleaning of wash items, e.g. to remove starch residues (} page 57) Menu-guided programme for descaling the inside of the warewasher (} page 58)
4

85 °C 65 °C xxx
xxx

87

6

5

Item Description 1 Access to the warewashing staff menu / chef menu 2 Machine model 3 Machine number 4 Display area for error pictograms 5 Date / time 6 Telephone number for service technician and chemical supplier 7 Current tank temperature 8 Current rinse water temperature

3.6 Rating plate
The rating plate (1) is on the back right of the warewasher. 1

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3.7 Chemicals
Operate the warewasher with chemicals from Miele. If other chemicals are used, contact Miele or an authorised customer service contact beforehand. Only use products that are suitable for commercial warewashers.
Rinse aid
Rinse aid is required in order to ensure that water on the wash items runs off as a thin film after washing. This ensures that the wash items dry quickly. Rinse aid is automatically dispensed using an integrated dosing device.
Detergent
A detergent is required to dissolve food residues and dirt on the wash items. Detergent is automatically dispensed using an (optional) integrated or external dosing device. To avoid damaging the warewasher and to achieve a good wash result:
Do not use acidic detergents. Do not use foaming products (e.g. manual washing-up liquid) for pre-treating the wash items.

3.8 Suction tube with level control

Colour (cover cap)
Blue
Grey

Canister
Rinse aid (optional) Detergent (optional)

1
The float switch (1) can detect a defect in the chemicals and indicates this on the display (} page 75).

3.9 Technical data
Description Rack dimensions Tank capacity Noise emission
IP protection class Min. water flow pressure
Max. inlet pressure (back pressure) Flow rate Inlet water temperature

Note Measurement uncertainty

Unit mm
l dB(A)
dB

PTD 901, PTD 901 Lift PTD 901 ECO, PTD 901 LIFT ECO
PTD 901, PTD 901 LIFT PTD 901 ECO, PTD 901 LIFT ECO

kPa (bar)
kPa (bar) l/min °C

Value 500 x 500
35 max. 62
2,5 IPX5 100 (1.0 bar) 150 (1.5 bar)
1000 (6.0 bar)
min. 4 max. 60 max. 20

Exhaust air
Observe local guidelines, e.g. DIN EN 16282 / VDI guideline 2052 when constructing the ventilation system.

Operating conditions

Name

Unit

Temperature at the installation site

°C

Relative air humidity at the installation site

%

Storage temperature

°C

Max. height of the installation location above sea level

m

Value 0 – 40 < 95 > -25 2000

Test marks and symbols

CE UKCA

2006/42/EC Machine Directive The Supply of Machinery (Safety) Regulations 2008

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Operating instructions

4

Software

4.1 Dishwashing staff menu

Software | 4 | English

The following menus are available:
Menu Error log

Functions List of current errors and history of corrected errors

Priming

Priming the dosing devices

Addresses

Addresses of service technicians and suppliers for rinse aid and detergent

4.2 Chef menu
In this menu the chef can change settings to the warewasher and access information. The warewasher switches off when the menu is accessed. After leaving the menu, the warewasher must be switched back on.
Access the chef menu
1575

A PIN protects the menu from unauthorised access. The PIN is 1575. If you enter your PIN incorrectly three times in a row, input will be blocked for 10 minutes.

Navigation

12 3

4

1

5

6

Item Description 1 Continue to the next window by tapping or “swiping” 2 Exit the menu 3 “Chef menu” symbol 4 Number of windows at the same level 5 One level back 6 Scroll up or down

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English | 4 | Software
The following menus are available: Menu
Hygiene logbook

Menu Brightness

Operating data

Sounds

Water hardness

Date / Time

Dosage

Language

Timer

Units

Basic cleaning

Water countdown meter

Descaling

The number of menus depends on the configuration of the warewasher.
4.2.1 Hygiene logbook
In this menu, the daily operating statuses are shown in chronological order.

4.2.2 Operating data
In this menu the operating data, e.g. consumption values and operating hours, are shown. Water consumption values are reference values and are not based on precise measurements.

4.2.3 Water hardness
Note: Only for machines with an integral water softener. The water hardness of the inlet water is entered in this menu.

Calculation table
German hardness English hardness French hardness mmol/l
54

1°dH= 1°e= 1°TH= 1 mmol/l=

°dH 1.0 0.798 0.560 5.6

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°e 1.253 1.0 0.702 7.02

°TH

mmol/l

1.78

0.179

1.43

0.142

1.0

0.1

10.0

1.0

Operating instructions

4.2.4 Dosage

In this menu you set the dosing amounts and configure the transfer strip for the dosing devices.

1

2

Software | 4 | English

Item Description 1 Set the dosing amount 2 Configure the transfer strip } page 68

Setting the dosing amount

1

3

4

2
Item Description 1 Detergent dosing 2 Rinse aid dosing 3 Washing programmes 4 Reset to default setting

4.2.5 Timer

The timer can be used to programme the warewasher to switch on or off automatically at a specific time. At the time of automatic start-up, the following requirements must be met:

The hood is closed.

The on-site mains voltage is switched on.

The local water supply is open.

1

2

Item Name 1 Set a regular time 2 Set a non-recurring date

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English | 4 | Software
Setting a regular time 1

43

2

Item Description 1 Switch the timer off/on 2 Time for automatic switch-off 3 Time for automatic start-up 4 Select timer schedule Daily Mon-Fri, Sat-Sun Individual (a different time on each weekday)

Setting a non-recurring date

12

3

Item Description 1 Switch the timer off/on 2 Date and time for automatic start-up 3 Date and time for automatic switch-off

Automatic switch-off sequence

Sequence of sounds

10 s pause

Sequence of sounds

10 s pause

Sequence of sounds

10 s pause

The self-cleaning programme empties and switches off the warewasher.

If the hood is open during the automatic switch-off, the warewasher is pumped empty and switched off, but not cleaned on the inside.
Displaying the programmed time

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Operating instructions

Software | 4 | English
4.2.6 Basic cleaning
The menu-guided basic cleaning programme is used for the thorough cleaning of wash items: Removal of starch residues from dishes Basic cleaning of new glasses Removal of residues on glasses
We recommend running the basic cleaning programme at the end of the working day, as the machine’s tank is emptied when the programme ends. This programme requires a basic cleaner that is suitable for commercial warewashers.
Warning
Risk of chemical burns due to chemicals Contact of chemicals with the skin or eyes can lead to severe burns or serious eye damage.
Ø In the event of contact with the eyes or skin, wash thoroughly with tap water. If necessary, seek medical attention. Ø Wear protective clothing, protective gloves and protective goggles. Ø Observe the danger and safety notes on the canister and safety data sheet.
Starting the basic cleaning programme
Follow dosing recommendations when adding the basic cleaner. The initial dose for the first use of the programme depends on the machine’s tank volume. The post-dosing for each additional programme depends on the rinse water volume.

1

2

3
Item Description 1 Cancel the basic cleaning programme 2 Restart the basic cleaning programme 3 End the basic cleaning programme

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English | 4 | Software
4.2.7 Descale
If the warewasher is operated with hard water and without water treatment, then the boiler, the interior of the machine, all the water lines and components may develop scale. Limescale deposits and dirt that remain in the machine can contribute towards hygiene risks, while scaling can lead to failure of heating elements. In case of limescale deposits, the warewasher must be descaled. The interior of the warewasher can be descaled using the descaling programme (} page 58). We recommend running the descaling programme at the end of the working day, as the machine’s tank is emptied when the programme starts and ends. The water lines and the boiler can only be descaled by an authorised service technician. For descaling, you require an acid-based descaler suitable for commercial warewashers.
Warning
Risk of chemical burn due to contact with descaler Contact between descaler and the skin or eyes can lead to severe burns or serious eye damage.
Ø Wear protective clothing, protective gloves and protective goggles. Ø Observe the danger and safety notes on the canister and safety data sheet.
Warning
Danger of chlorine gas developing Mixing active chlorine cleaner and acid- based descaler produces chlorine gas. Contact with chlorine gas leads to eye, nose and throat irritations.
Ø Do not mix active chlorine cleaner and acid-based descaler. Ø Ensure good ventilation when you descale the warewasher.
Note
Danger of corrosion due to descaler solution Descaler solution has a corrosive effect when in contact with metals and plastics for a long time and therefore must not remain in the interior of the machine (e.g. overnight).
Ø Do not cancel the descaling programme and follow the instructions on the display.
Starting the descaling programme
When adding the descaler, observe the tank volume and dosing recommendation.

1

2

3
Item Name 1 Cancel descaling programme (possible as long as no descaler has been added) 2 Repeat descaling programme 3 End descaling programme

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Operating instructions

4.2.8 Brightness
In this menu, the brightness of the display is set.

Software | 4 | English

4.2.9 Sounds
In this menu sounds are turned on or off.
1
2
Item Name 1 Turn all sounds on or off 2 Turn individual sounds on or off
4.2.10 Date / time
In this menu, the date and time are entered. Note: Time must be changed for the summer/ winter time changeover.
1
2
Item Name 1 Set date 2 Set time
4.2.11 Language
In this menu the language of the display texts is set.
1

Item Name 1 Reset to last language set

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English | 4 | Software
4.2.12 Units
In this menu the unit and temperature indicator are changed.

4.2.13 Water back-flow counter

The water back-flow counter must be reset if the set total capacity of an external water treatment device has reached the value “0”.

1

2

Item Name 1 Set the total capacity 2 Reset the water back-flow counter

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Operating instructions

Commissioning | 5 | English

5

Commissioning

5.1 Installing the warewasher

The installation site must be frost-resistant to prevent the water supply systems from freezing. Ø Install the warewasher horizontally using a spirit level. Ø Adjust any unevenness of the base using the height-adjustable machine feet.

5.2 Connecting the warewasher
The warewasher and any other relevant additional devices must be connected in adherence to local standards and regulations by an electrical company authorised by the relevant electricity supplier.
5.2.1 Water connection
The warewasher must be connected to the fresh water supply via the provided dirt trap, in order to achieve the water safety level pursuant to DIN EN 61770. The dirt trap prevents particles from the inlet water from entering the warewasher, thus preventing extraneous rust on the cutlery and in the warewasher.

Connecting the supply hose
Important notes: The supply hose must not be shortened or damaged. Only use the supply hose provided. Old, pre-existing supply hoses must not be re- used. Do not kink the supply hose when installing it.

1

Ø Connect the inlet water hose (4) to the warewasher an to the dirt trap (3).

Ø Connect the dirt trap (3) to the on-site water supply (1).

Ø Only for Australia and New Zealand (installation according to

2

AS/NZS 3500.1 and AS/NZS 3500.2): Connect the dual check

valve (2) to the dirt trap (3) and the on-site water supply (1).

Ø Open the water supply (1) and check that the connections are

sealed.
3

4

Connecting the warewasher to the waste water system
Ø Connect the waste water hose (1) to the warewasher. Ø Guide and connect the waste water hose to the on-site waste
water connection.

1

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English | 5 | Commissioning

Requirements for on-site installation

Inlet water connection
Location Construction Inlet water temperature
Water quality Water hardness
Water flow pressure
Max. inlet pressure (back pressure) Flow rate

approx. 500 mm above finished floor; to the right of the machine

Isolation valve with G ¾” external thread

PTD 901, PTD901 Lift

max. 60°C

PTD 901 ECO, PTD 901 Lift ECO

max. 20°C

Microbiologically, fresh water must be of drinking water quality

Machines without integrated softener

Machines with integrated softener

PTD 901, PTD901 Lift

3 °dH (3.8 °e / 5.34 °TH / 0.54 31 °dH (37.6 °e /

mmol/l)

53.4 °TH / 5.35 mmol/l)

Recommended, to prevent warewasher from scaling up.

PTD 901 ECO, PTD 901 Lift ECO

3 °dH (3.8 °e / 5.34 °TH / 0.54 20 °dH (25.1 °e /

mmol/l)

35.6 °TH / 3.58 mmol/l)

Connection of osmosis water is not permitted due to the copper pipes in the waste air heat exchanger

PTD 901, PTD901 Lift

100 kPa (1,0 bar)

PTD 901 ECO, PTD 901 Lift ECO

150 kPa (1,5 bar)

1000 kPa (10,0 bar)

min. 4 l/min

Waste water connection
Location Dimensions

approx. 650 mm above finished floor; left or right of the machine Ø 40 mm or 50 mm with trap

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Operating instructions

Commissioning | 5 | English

5.2.2 Electrical connection

Danger

Electric shock from live components

A fatal electric shock can occur when the warewasher and its additional devices are connected to the electrical mains supply.
Ø The warewasher and its additional devices may be connected to the electrical mains supply only by a specialist company registered within the electrical trade and approved by the energy supplier.
Ø All locally applicable standards and regulations must be observed during the connection to the electrical mains supply.
Ø A protective circuit must be connected properly.
Ø The electrical safety of this warewasher is guaranteed only if it is connected to a correctly installed protective circuit. Ø The wiring diagram must be observed. Ø The warewasher may be operated only at the voltages and frequencies specified on the rating plate. Ø For machines delivered without a plug, a fixed connection must be installed as an overriding priority. Ø The electrical connection must be secured as a separately fused circuit with slow fuses or circuit breakers. The fuse protection de-
pends on the total connected load of the warewasher. The total connected load is specified on the rating plate of the warewasher. Ø If a residual current circuit breaker is provided on-site, we recommend installing a Class B all- current sensitive residual current cir-
cuit breaker. Ø Determine the cable cross-section of the mains cable using the following table:

Voltage

Frequency [Hz]

On-site fuse protection [A]

Cable cross-section [mm²]

380 V, 3N~

50

16

2,5

60

400 V / 3N~

50

16

2,5

60

25

4

32

6

415 V / 3N~

50

15

2,5

60

16 / 20

2,5

25

4

32

6

200 V / 3~

50

25

4

60

32

6

230 V / 3~

50

25

4

60

32

6

230 V / 1N~

50

32

6

60

240 V / 1N~

50

25

4

60

32

6

40

10

50

10

230 V / 1N~ and 240 V / 1N~ don’t apply for Australia and New Zealand. The mains cable must be a H07RN-F type or equivalent.

Operating instructions

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English | 5 | Commissioning

Connecting the mains cable

Note: Select the correct cross section and number of wires in the mains cable to suit the on-site voltage and fuse protection.

1

23

4

5

1

67

Ø Remove the front cover. Ø Insert the mains cable (1) at the rear of the machine. Ø Pull the mains cable (1) out at the front and guide it to the left. Ø Strip the wire ends of the mains cable and attach ferrules. Ø Connect the mains cable wires (3) according to the connection diagram (} page 64) and close the quick release connectors (2). Ø If necessary, connect the bridges (6) according to the connection diagram (7) and press in firmly using a screwdriver. Ø Connect the green-yellow wire to the distributor of the earth wires (4). Ø Fasten the mains cable to the mounting plate using a cable tie (5) for strain relief. Establishing equipotential bonding
Ø Connect the warewasher to the on-site equipotential bonding system.
Ø Position of the connecting screw (1) see drawing.
1
Connection diagram

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Operating instructions

Commissioning | 5 | English

5.3 Multifunction interface overview

Danger

Electric shock from live components
A fatal electric shock can occur when the warewasher and its additional devices are connected to the electrical mains supply.
Ø The warewasher and its additional devices may be connected to the electrical mains supply only by a specialist company registered within the electrical trade and approved by the energy supplier.
Ø All locally applicable standards and regulations must be observed during the connection to the electrical mains supply.
Ø A protective circuit must be connected properly.

12

3

Ø Loosen the screws (2) and remove the cover (1).

Item Description 3 Transfer strip for external dosing devices 4 Terminals for rinse aid suction tube 5 Terminals for detergent and defoamer suction tube

4 5

Operating instructions

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English | 5 | Commissioning
5.4 Mechanically connecting suction tubes

Ø Fasten the hose of the rinse aid suction tube to the connection (1) using a wire hose clip.
Ø Fasten the hose of the detergent suction tube to the connection (2) using a wire hose clip.

21
5.5 Establish the electrical connection of the suction tubes Ø Connect the suction tube for the detergent to the terminal (1). Ø Connect the suction tube for the rinse aid to the terminal (2).
12

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Operating instructions

Commissioning | 5 | English

5.6 Establish the electrical connection of the external dosing devices

Danger
Electric shock from live components
A fatal electric shock can occur during installation and maintenance work and when carrying out repairs. Ø Isolate and lockout the mains supply to the warewasher. Ø Check that there is no voltage present.

1 23 45

Note: Maximum current drain at the transfer strip: 0.5 A. Only connect external dosing devices with their own fuse protection. Include the dosing device in the protective circuit (PE) of the warewasher.
Ø Disconnect the warewasher from the electrical mains supply and secure against unintended activation.
Ø Connect external dosing device to transfer strip. Ø Configure the transfer strip (} page 68).

Item Name

Note

1 DETERGENT

For detergent dosing device (type-dependent)

2 WASH

For detergent dosing device (type-dependent)

3 RINSE

For rinse aid dosing device

4N

Neutral / phase 2

5 L1

Continuous voltage / phase 1

Depending on the configuration of the transfer strip, voltage is present at the RINSE and DETERGENT terminals.

Terminal

Voltage present

Condition

Restriction

DETERGENT

While machine fills

Hood closed
Minimum water level in the tank

Parallel to solenoid valve While machine fills During the rinse

Hood closed

Not during the self-cleaning programme

WASH

Parallel to wash pump

Hood closed

Not during the self-cleaning programme Not in the drainage programme Not while the machine is being filled

Not during the descaling and basic cleaning programme

RINSE

Parallel to rinse pump

Hood closed

Not during the self-cleaning programme Not in the drainage programme

Not while the machine is being filled
Not during the descaling and basic cleaning programme

Parallel to solenoid valve

Hood closed

Not during the self-cleaning programme

While machine fills During the rinse

Not in the drainage programme

Operating instructions

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5.7 Configuring the transfer strip
A service technician configures the transfer strip in the Dosing menu, specifying the type of dosing device.
Detergent dosing device

1

23

Item Description 1 Reset to default setting 2 For dosing devices not from Miele: While the machine is filling Parallel to the solenoid valve Peristaltic pump For Miele dosing devices: Fluidos MPI/PPX 3 Save settings
Rinse aid dosing device

Note
With the “peristaltic pump” setting, also set the output in ml/min. Set the dosing amount in the dosing menu.

1

23

Item Description 1 Reset to default setting 2 For dosing devices not from Miele: Parallel to the rinse pump Parallel to the solenoid valve Peristaltic pump For Miele dosing devices: Fluidos MPI/PPX 3 Save settings

Note
With the “peristaltic pump” setting, also set the output in ml/min. Set the dosing amount in the dosing menu.

5.8 Before working with the warewasher for the first time
Ø Arrange for the warewasher to be set up by an authorised service technician or by your dealer. Ø Arrange for the warewasher to be connected by authorised technicians according to the locally applicable standards and regula-
tions (water, waste water, electrical system). Ø After connecting the water and the power properly, contact the relevant Miele dealership or your dealer to arrange initial commis-
sioning of the warewasher. Arrange for the operator and operating personnel to be trained in operating the warewasher.

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Operating instructions

6

Operation

6.1 Switching on the warewasher

The warewasher is ready for operation as soon as the start button lights up white.

Operation | 6 | English
2 s

6.2 Checking for completeness

Note: Ensure that there is always enough detergent and rinse aid available to achieve an optimum wash result.
6.3 Washing
Caution
Risk of scalding from hot wash water Ø Do not open the hood during washing. Ø Before opening the hood, cancel the washing programme by pressing the start button and wait a few seconds.
Do not wash without a wash rack. Do not wash electrical cooking appliances. Do not wash parts made of wood. Do not wash ashtrays or objects covered with wax. Only wash heat-resistant plastic parts and those resistant to alkalis.
Instructions for a good wash result
Soak the cutlery until it is clean. Do not use any foaming pre-cleaners. Do not polish glasses, cutlery or dishes. Germs and bacteria can be found even in fresh multi-purpose cloths. Wash parts made of aluminium, e.g. pots, containers or trays, only with a suitable detergent to avoid black discolouration.

Operating instructions

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English | 6 | Operation
Arranging the wash items in the wash rack Ø Remove large pieces of food residues. Ø Pour out beverage residues (outside the warewasher). Ø Place plates with their upper surface facing forwards. Ø Place glasses, cups, bowls and pots rim down. Ø CAUTION! Possible risk of injury from sharp or pointed utensils when loading the wash racks! Wash cutlery upright in the cut-
lery holder or lying in the shallow wash rack. Always arrange the handle ends downwards. Make sure that the cutlery is wellspaced. Ø Do not overload racks, so that the wash water can reach all dirty surfaces. Ø Space glasses to prevent them from rubbing against each other. This will avoid scratches. Ø For tall glasses, choose a wash rack with appropriate divisions so that the glasses are held in a stable position.
Starting the washing programme with an automatic hood Ø Arrange the wash rack correctly. Ø Slide the wash rack into the warewasher. Ø Press the start button on the front cover or hood to close the hood.
ð The washing programme starts automatically.
ð The start button lights up orange.
ð For warewashers with an ECO module, the start button flashes white-orange before the end of the programme. At the same time, the warm and humid air is extracted from the interior and the heat energy stored in it is recovered for the next washing programme.
ð The start button lights up white and the hood opens automatically as soon as the programme ends.

Starting the washing programme without an automatic hood Ø Arrange the wash rack correctly. Ø Open the hood. Ø Slide the wash rack into the warewasher. Ø Close the hood.
ð The washing programme starts automatically.
ð The start button lights up orange.
ð For warewashers with an ECO module, the start button flashes white-orange before the end of the programme. At the same time, the warm and humid air is extracted from the interior and the heat energy stored in it is recovered for the next washing programme.
ð The start button flashes white as soon as the washing programme ends. Ø Do not open the hood until the start button flashes white.

Cancelling the washing programme

1

2

Ø Press button (1) or (2). ð The start button lights up orange.

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Operating instructions

Operation | 6 | English
Wash breaks 1 Ø Do not switch the warewasher off during wash breaks. Ø Close the hood to prevent the machine from cooling down. Ø Without an automatic hood: Close the hood to the bottom
detent position. Ø With an automatic hood: To close the hood without starting a
programme, press the start button (1) on the front cover for 2 seconds. or Ø Press the “Close hood” button.
Activating an additional programme
The additional programme remains activated until it is deactivated or another additional or washing progra