WIESHEU Minimat 43 S Quick start guide

Original Operation Manual EN
Minimat
The Hot Air In-Store
Baking Oven

9401-130-001-EN · Version 17-01 · Minimat
Contents
1 Explanation of the User Information 4
1.1 Legends 4
1.1.1 Degrees of danger/symbols 4
1.1.2 Safety information and symbols 5
1.2 Type plate 6
1.3 Excerpt from the EU Declaration of Conformity 7
2 Product Description 8
2.1 Function/overview 8
2.2 Intended use 8
2.3 Reasonably foreseeable misuse 8
2.4 Liability 8
2.5 Technical Specications 9
2.5 Technical specications custom version 10
2.6 Risk of injury / residual risks 11
2.6.1 Obligation of the customer 11
2.6.2 Obligation of the sta󰀨 11
2.6.3 General risk of accidents 11
2.6.4 Danger of re/explosion 11
2.6.5 Danger from contact with electrics 12
2.6.6 Danger of burns 12
2.6.7 Water damage 12
2.6.8 Danger of non-ionising radiation 12
2.6.9 Risk of technical damage 13
3 Transportation and Setup 13
3.1 Transport 13
3.2 Unpacking 13
3.3 Installing / dismantling the appliance combination 14
3.4 Place of installation and surroundings 15
3.5 Place of installation and distances 15
3.5.1 Free space next to, above and below the appliance/combined appliance 15
3.5.2 Free space in front of and behind the appliance/combined appliance 16
3.5.3 Distances to sources of heat 16
3.5.4 Distances to safety equipment 16
3.5.5 Combined appliance with enclosure 17
3.5.6. Appliance ID 17
3.6 Connections on-site 18
3.6.1 Electrical connection 18
3.6.2 Plumbed-in water connection for the steaming unit 19
3.6.3 Exhaust air connection 20
3.7 Commissioning 20
3.7.1 Inspections to be carried out before commissioning 21
4 Operation 22
4.1 Switching the in-store baking oven on/o󰀨 22
4.2 Opening/closing the door 22
4.2.1 Opening/closing of “manual” Minimat oven door 22
4.2.2 Opening/closing of “electrical” Minimat oven door 22
4.2.3 Emergency unlocking if equipped with electrical door lock 23
4.3 Inserting/removing bakery products 23
4.4 Setting the baking parameters 24
4.5 Removing/installing the tray frames 24
4.6 Tank option 25
4.6.1. Removing/lling/inserting the water tank 25

Minimat · Version 17-01 · 9401-130-001-EN
5 Cleaning 26
5.1 General cleaning work 26
5.2 Cleaning agents 27
5.3 Cleaning instructions and cleaning agents 28
5.4 Descaling 30
6 Servicing 30
6.1 General maintenance work 30
6.4 Faults/causes/remedies 30
7 Disposal 33
8 Copyright 33

Page 4 9401-130-001-EN · Version 18-01 · Minimat
1 Explanation of the User Information
The equipment is a machine in the sense of Machine Directive 2006/42/EC. This user information provides
information on intended and safe operation and contains important instructions on how to operate the device
safely, appropriately, and economically. Read the instructions before starting to use the equipment.
Depending on the model, the illustrations may di󰀨er from the product. The control's operating Instructions
supplement this user information. Depending on the version of the device, it is completed by the user infor-
mation of the options.
Paying attention to the user information helps to avoid danger and to optimise and speed up process ows.
It helps to minimise downtimes and the costs of repairs and to increase the device's reliability and extend its
service life.
This documentation applies to the following device types and their options:
Minimat 43 S Item number X1000, X1001
Minimat 64 M Item number X1120, X1121
Minimat 64 L Item number X1220
This user information is an integral part of the product and must be kept in close
proximity to the machine, and stored such that it is easily accessible for operating
personnel to consult it at all times. Everybody who works with the machine must
have completely read the user information before starting work.
Symbol Declaration of Conformity
Danger
Indicates a danger that directly and with certainty will result in death or serious,
permanent injuries if the appropriate precautions are not taken.
Warning
Indicates a danger that will probably result in death or serious injuries if the
appropriate precautions are not taken.
Caution
Indicates a danger that will possibly result in slight injuries if the appropriate
precautions are not taken.
Notice
Indicates a danger that will result in signicant damage to the machine or
material if the appropriate precautions are not taken.
DANGER
CAUTION
WARNING
NOTICE
1.1 Legends
1.1.1 Degrees of danger/symbols

Page 5
Minimat · Version 18-01 · 9401-130-001-EN
1.1.2 Safety information and symbols
Symbol Declaration of Conformity Symbol Declaration of Conformity
Warning of a hazardous location Warning of a crushing hazard
Warning of a dangerous electrical
voltage
Warning of irritants
Warning of a hot surface Warning of a tipping hazard
Warning of re hazard Warning of scalding hazard
Equipotential bonding
Check before starting work Disconnect from power supply
Use hand protection Use eye protection
Electrical connection Exhaust air connection
Fresh water connection Waste water connection
Read the user information be-
fore use
Before starting work, read the
service information
Reference to information that
facilitates handling and working
with the product.

Page 6 9401-130-001-EN · Version 18-01 · Minimat
The type plate contains the most important information about
the device. The type plate is located on the right- or left-hand
side of the device (depending on the model).
1.2 Type plate
Pos. Designation
10 Item
20 Serial number
30 Year of construction
40 Rated voltage (V)
50 Frequency (Hz)
60 Rated current (A)
70 Rated output (kW)
80 IP protection class
90 Water pressure (kPa)
WIESHEU GmbH
Schleifwiesenstraße 27
71723 Großbottwar, Germany
Service Hotline: [phone]
Made in Germany
Artikel:
Item:
Seriennr.:
Serial-no:
Bemessungss-
pannung:
Rated voltage:
Bemessungsstrom
Rated current:
Baujahr:
Manuf. date:
Frequenz
frequency:
Bemessung-
sleistung:
Rated load:
Wasserdruck:
Water pressure:
IP-Schutzgrad:
IP Code:
10
50
70
60
3020
40
80
90

Page 7
Minimat · Version 18-01 · 9401-130-001-EN
1.3 Excerpt from the EU Declaration of Conformity
DIRECTIVES STANDARDS
2006/42/EC: Machinery Directive
EN 60335-2-42:2003 + AC:2007 + A1:2008 + A11:2012
EN ISO 12100:2010
EN ISO 13732-1:2008
Name and address of the Documenta-
tion O󰀩cer
WIESHEU GmbH
Schleifwiesenstraße 27
71723 Großbottwar
2014/30/EU: EMC Directive
EN 55014-1:2006 + A1:2009 + A2:2011
EN 55014-2:1997 + AC:1997 + A1:2001 + A2:2008
EN 61000-3-2:2014
EN 61000-3-3:2013
Other: EN 82079-1:2012
The manufacturer,
WIESHEU Wolfen GmbH
Kekuléstraße 1
06766 Bitterfeld-Wolfen
Deutschland
hereby declares that the devices named below comply with the following directives and standards:
PRODUCT LINE MINIMAT
Description of appliance Convection oven
Appliance type as described in the
user information and the following
appliance types
Minimat 43 S
Minimat 64 M
Minimat 64 L
Item no.
X1000
X1120, X1121
X1220
Serial number from 12008214

Page 8 9401-130-001-EN · Version 18-01 · Minimat
2.1 Function/overview
Using the WIESHEU oven, it is possible to heat and bake commercial baking goods.
2.2 Intended use
The device is technical equipment. It is not intended for use in the home.
The device is designed exclusively for baking and cooking commercial baking goods.
The device is intended for indoor use only.
With the "safety lock" option, the device can be installed in the food retail sector.
Optional enhancements or modications to the device must only be implemented in designs approved by
WIESHEU GmbH.
Any other enhancements and/or modications to the device are not permitted.
Any other usage extending beyond this is not regarded as intended usage.
WIESHEU GmbH is not liable for damages resulting from such unintended use.
2.4 Liability
The customer and operating personnel are obliged to observe the instructions in the user information
.
WIESHEU GmbH assumes no liability for damage which occurs as a result of incorrect or negligent opera-
tion, working with the wrong operating parameters, servicing or maintenance or non-intended use. This also
applies to changes, enhancements and modications to the combined unit. Any factory guarantee will thus
become null and void.
Only use spare parts approved by the manufacturer.
WIESHEU GmbH will not accept liability for damage resulting from the use of non-approved spare parts.
2 Product Description
2.3 Reasonably foreseeable misuse
The device is not intended to be located in cold stores. Complete functionality can only be guaranteed at
temperatures of a minimum of +10 and a maximum of +40 °C.
The device is not intended to be set up in kitchens.
The device is not intended for use in trains or mobile shops, on ships or outdoors.
The device is not intended for drying or curing objects.
The device is not suitable for heating liquids or food which will liquefy.
NOTICE The work steps below must only be carried out by authorised WIESHEU GmbH
service engineers:
• Installation
• Assembly
• Initial commissioning
• Maintenance / Service

Page 9
Minimat · Version 18-01 · 9401-130-001-EN
2.5 Technical Specications
The maximum number of trays the appliance can hold is specied in the technical specications.
Regardless of the number of trays indicated, the device can be operated with fewer trays. The settings of the
baking parameters should be adjusted accordingly when required.
The maximum load weight of 5 kg per tray must not be exceeded.
Item no. X1000 X1120 X1220
Appliance designation Minimat 43 S Minimat 64 M Minimat 64 L
Designation Convection oven Convection oven Convection oven
Version 230 V 50Hz 400 V 50Hz 400 V 50Hz
Control unit Comfort,
Classic manual
Comfort,
Classic manual
Comfort,
Classic manual
Door Double-glazed Double-glazed Double-glazed
Steam injection Pipe steam injection Pipe steam injection Pipe steam injection
Width mm 600 760 760
Depth mm 780 770 770
Height mm 550 595 745
Weight
with “Tank” option
kg 52.5
54.0
70.0
71.5
89.5
91.0
Number of chambers ----- ----- -----
Size number of shelves mm 3 x 440 x 350 3 x 600 x 400 5 x 600 x 400
Back-up fuse A 1 x 16 3 x 16 3 x 16
Current consumption A 13.5 7.7 11.3
max. permitted leakage
current
mA 10 7.7 10
Chamber heating kW ----- ----- -----
Heating DE kW ----- ----- -----
Connected load kW 3.1 5.3 7.8
Heating kW 3 5 7.5
Heating of cascade kW ----- ----- -----
Motor kW 0.035 0.2 0.2
Protection class IP X3 X3 X3
Temperature range °C 30 - 250 30 - 250 30 - 250
Ambient temperature °C +10 - +40 +10 - +40 +10 - +40
Ambient humidity %rH 30 - 60 30 - 60 30 - 60
Water connection
with “Tank” option
“ 3/4
-----
3/4
-----
3/4
-----
Water pressure kPa 150 - 600 150 - 600 150 - 600
Waste water connection mm Ø ----- ----- -----
Exhaust connection mm Ø 50 50 50
Condensate connection mm Ø 12 12 12
Workplace-specic
sound emission value
dB(A) < 70 < 70 < 70

Page 10 9401-130-001-EN · Version 18-01 · Minimat
2.5 Technical specications custom version
Item no. X1001 X1121
Appliance designation Minimat 43 S Minimat 64 M
Designation Convection oven Convection oven
Version 200V 2/PE
50/60 Hz
230 V 1/N/PE
50/60 Hz
Control unit Comfort,
Classic manual
Comfort,
Classic manual
Door Double-glazed Double-glazed
Steam injection Pipe steam injection Pipe steam injection
Width mm 600 760
Depth mm 780 770
Height mm 550 595
Weight
with “Tank” option
kg 52.5
54.0
70.0
71.5
Number of chambers ----- -----
Size number of shelves mm 3 x 440 x 350 3 x 600 x 400
Back-up fuse A 1 x 16 1 x 16
Current consumption A 15.0 14.35
max. permitted leakage
current
mA 10 10
Chamber heating kW ----- -----
Heating DE kW ----- -----
Connected load kW 3.1 3.3
Heating kW 3 3
Heating of cascade kW ----- -----
Motor kW 0.035 0.2
Protection class IP X3 X3
Temperature range °C 30 - 250 30 - 250
Ambient temperature °C +10 - +40 +10 - +40
Ambient humidity %rH 30 - 60 30 - 60
Water connection
with “Tank” option
“ 3/4
-----
3/4
-----
Water pressure kPa 150 - 600 150 - 600
Waste water connection mm Ø ----- -----
Exhaust connection mm Ø 50 50
Condensate connection mm Ø 12 12
Workplace-specic
sound emission value
dB(A) < 70 < 70

Page 11
Minimat · Version 18-01 · 9401-130-001-EN
2.6 Risk of injury / residual risks
This device has been produced by WIESHEU GmbH according to the latest best available technology.
All appliances that leave the factory have been subjected to thorough testing.
Nevertheless, if the appliance is used improperly, hazards to life and limb of the user or a third party may
result, or the appliance or other assets may be damaged.
General safety instructions are summarized in this chapter. Specic safety instructions are described in the
sections where operators are directly confronted with risks.
The following safety instructions must be understood as a supplement to the pre-existing applicable national
accident prevention guidelines and laws.
Existing accident prevention guidelines and laws must be adhered to in any case.
All appliances must be installed categorically in accordance with the valid, local safety regulations.
2.6.1 Obligation of the customer
The customer is obliged to only allow people to work with the device who are acquainted with the fundamental
instructions regarding work safety and accident prevention and have been instructed in handling the device.
Operating companies are obliged not to allow people to work with the appliance who su󰀨er from impairments
with respect to their physical, mental, and sensory capabilities. Children under the age of 14 must be
supervised to ensure that they do not play with the device.
2.6.2 Obligation of the sta󰀨
Before starting work on the appliance, everybody who works with it must have read this user information, be
familiar with its contents and pay attention to it. The persons conrm this by their signature.
Danger of re!
There is a danger of re if the device overloads electrically.
The fuse protection of the plug socket must be ensured. Do not attach foil, paper,
stickers etc. to the device. Remove all protective sheeting from the device before
initial commissioning. Do not store items or foreign objects in, on, or near the
device. Never heat up alcoholic items or items that are ammable or explosive!
WARNING
2.6.4 Danger of re/explosion
2.6.3 General risk of accidents
Comply with the general accident prevention regulations when working with and
on the appliance.
CAUTION

Page 12 9401-130-001-EN · Version 18-01 · Minimat
2.6.5 Danger from contact with electrics
2.6.7 Water damage
NOTICE The water tap installed by the customer near the device may only be turned on if
the device is running and must be turned o󰀨 again afterwards. The ow pressure
of the water may not exceed the pressure stated on the type plate. If necessary,
a pressure regulator must be installed by the customer.
Risk of electric shock!
The electrical connection and any work on the electrical equipment of the
device must only be carried out by an electrician trained in the workings of
this particular product, and in full compliance with industry standards and
regulations.
Protect all electrical assemblies from damp, moisture and dust. Important
functions, e.g. safety circuits can fail and lead to people being injured and
appliance parts being damaged.
A defective appliance can cause an electric shock. Only use the device when
it is in technically perfect condition. Before starting work, check the device for
damage.
Pull the mains plug if damaged or switch o󰀨 the circuit breaker! Secure the
mains plug / circuit breaker against reactivation. All parts must be correctly
assembled and full all conditions to ensure problem-free operation.
DANGER
2.6.6 Danger of burns
Risk of burning!
To prevent scalding from heated liquids, do not push containers into the device
with liquids or with food that will liquefy when heated. Never prepare any
products that can be expected to exude more that 100 ml of liquid per loading
procedure.
There is a danger of being burnt by hot liquids and steam.
Do not open the door while the program is running.
Hot steam exits through the exhaust connection on the back of the device. Set
the device up such that no personal injury or material damage can occur as a
result of exiting steam. Shut o󰀨 the construction-side water supply immediately
if the solenoid valve is defective, or if the steam injection valve is permanently
open. Any other operation is prohibited as there is a risk of burns from hot
steam.
CAUTION
2.6.8 Danger of non-ionising radiation
Non-ionising radiation is not generated purposefully; it is emitted by electrical
equipment
(e.g. electric motors, power lines or solenoid coils) due to the technology.
Apart from this, the appliance does not have any powerful permanent magnets.
If a safety distance of at least 30 cm is kept between the eld source and
the implant, it is possible to virtually rule out completely active implants
(like pacemakers or debrillators, for example) being a󰀨ected.

Page 13
Minimat · Version 18-01 · 9401-130-001-EN
3 Transportation and Setup
3.1 Transport
The appliance/combined appliance is packed onto a transport pallet at the factory. Remove all foil and
cardboard packaging. Comply with packaging disposal regulations. The transport pallet is reusable and can
be sent back to the manufacturer.
Technical damage!
Always transport the device or the combined unit vertically; otherwise, damage
can be caused.
The device or combined unit is packed on a transport pallet.
The transport pallet can be driven underneath using a lifting truck.
Danger of crushing!
Do not stand under or reach under raised, suspended loads!
Danger of tilting!
When transporting with a transport pallet, it is important to ensure that the pallet
is positioned completely underneath the lifting truck. Secure the pallet with the
combined appliance onto the lifting truck prior to lifting. Use a suitable lashing
strap.
The combined appliance may be moved a maximum distance of three metres
for servicing, maintenance and cleaning purposes. Only transport the combined
appliance in conjunction with the transport pallet and with a suitable lifting truck.
CAUTION
WARNING
NOTICE
The device's door is made of glass and there is a risk of the glass breaking.
Carefully check for any glass damage when unpacking and wear appropriate
protective gloves to prevent cuts.
NOTICE
Transport the entire combined appliance to the set up location and position.
If the combined appliance cannot be transported to the installation location as a whole, then the individual
appliances must be removed from the combination. Pay attention to all notices in the chapters “Unpacking”
and “Dismantling / Installing the appliance/combined appliance”.
3.2 Unpacking
Technical damage!
The device is equipped with a frequency converter which can be damaged by
power surges. After disconnecting the mains plug from the power supply, wait
1 minute until all components have discharged fully. Only then reconnect the
mains plug to the power supply.
NOTICE
2.6.9 Risk of technical damage

Page 14 9401-130-001-EN · Version 18-01 · Minimat
If the combined appliance cannot be transported to the installation location as a whole, then the individual
appliances must be removed from the combination.
Remove the waste water pipe / exhaust air pipe. Use suitable slinging gear when lifting and carrying the
individual elements. For example scissor lift, lifting truck with narrow forks, carrying straps, carrying aid,
lashing straps.
3.3 Installing / dismantling the appliance combination
This manual provides examples for safe and quick dismounting/mounting. Of
course, it is not possible to show or describe in detail every exceptional case at the
customer's. All safety instructions must be complied with, whatever the situation.
Component Description
D= Dismantling / M= Mounting
Support
material
Steam reducer D: Loosen the mounting screws at the rear of the steam reducer.
Push the steam reducer backwards. Take o󰀨 the steam reducer
upwards.
Allen key 2.5
M: Lift o󰀨 the steam reducer and place it on the appliance
combination. Attach the fastening screws on the rear of the
steam reducer. Tighten the fastening screws.
Minimat 43
Minimat 64
D: Lift o󰀨 the Minimat toward the top. mobile platform
truck
M: Position the Minimat on the prover, base frame, or storage
compartment. If a base cover is used, lower the Minimat 64 into
the position openings of the base cover.
Storage compart-
ment
D: Lift o󰀨 the storage compartment / base frame toward the top. mobile Platform
truck
M: Position the storage compartment / base frame on the prover or
base frame
Base frame /
prover
mobile platform
truck
M: Move the base frame / prover to the place of installation.
Base cover
Minimat 64
The base cover for the Minimat 64 is used in appliance combinations
and comes ready mounted. Position the base cover on the prover,
base frame, or the bottom Minimat 64. Using the base cover is
mandatory for installations in areas with customer tra󰀩c.
Base cover
Minimat 43
The base cover of the Minimat 43 is used in appliance combinations.
Clip the base cover onto the support feet of the Minimat 43. Using
the base cover is mandatory for installations in areas with customer
tra󰀩c.
Appliances / combinations may only be set up in customer areas if they are
equipped with electric door lock, Comfort Control and safety lock (software) as
well as base cover.
The emergency unlocking unit must be covered by a base cover for safety
reasons.

Page 15
Minimat · Version 18-01 · 9401-130-001-EN
3.4 Place of installation and surroundings
NOTICE
CAUTION
CAUTION
3.5 Place of installation and distances
Risk of burning!
The appliance/combined appliance must be placed such that the installation
area faces a suitable wall.
If the appliance/combined appliance is placed free-standing in a room, the
installation area has to be protected with a suitable cover from interference
or being touched by unauthorised people. This cover must be veried and
approved by WIESHEU GmbH or persons authorised by WIESHEU GmbH.
The appliance must stand on a horizontal, secure, non-tilting base that can take
the weight of the device or the combined appliance.
There is a danger of overloading. The manufacturer's recommendation in
accordance with the installation plan is to be observed during installation.
Technical damage!
To ensure correct functioning, the appliance/combined appliance must be
installed on dry, frost-proof premises.
The combined system parts must only comprise WIESHEU products or products
approved by WIESHEU GmbH. Only these products have been thoroughly
tested. WIESHEU GmbH accepts no liability for damage resulting from the use
of non-approved products.
The maximum height of an appliance combination of the Minimat 43 appliance
series must not exceed a height of 1850 mm and with the Minimat 64 a height of
1980 mm. The maximum overall height of all other appliance combinations must
not exceed 2265 mm. Otherwise, ergonomic and safe operation of the combined
appliance is not possible.
To avoid heat accumulation:
■Set up the appliance/combined appliance at a minimum distance of
20 mm from the side wall.
■Keep the air vents on the sides and on the back clear.
■Keep a minimum space of 100 mm above the appliance / appliance
combination.
■We recommend not covering the space under the appliance/combined
appliance.
■If the appliances / combined appliances are completely integrated, vent
the exhaust air toward the front.
Observe distances
Observe distances
3.5.1 Free space next to, above and below the appliance/combined appliance

Page 16 9401-130-001-EN · Version 18-01 · Minimat
Min. 350 mm
or Isoplan
Min. 5000 mm Fire alarm
Distances di󰀨er depending on the manufacturer.
A minimum distance of 5 m should not be fallen short of.
For more information on this topic, please read the technical
documentation and descriptions of the smoke detector manufacturer.
3.5 Place of installation and distances
The appliance/combined appliance must be installed at a minimum
distance of 350 mm from other heat sources (>80 °C). If the minimum
distance cannot be achieved a heat shield (e.g. Isoplan) must be
provided by the customer.
3.5.4 Distances to safety equipment
Electricity, water, waste water and exhaust connections are located
on the back of the appliance/combined appliance. These must be
accessible when required.
■Move the appliance/combined appliance forward to carry out
maintenance.
■Keep a minimum space in front of the appliance/combined appliance
of 1000 mm.
■A minimum distance of 20 mm must be maintained at the rear.
Observe distances
3.5.3 Distances to sources of heat
3.5.2 Free space in front of and behind the appliance/combined appliance

Page 17
Minimat · Version 18-01 · 9401-130-001-EN
3.5.5 Combined appliance with enclosure
Min. 600 mm
Min. 200 mm
With appliances/combined appliances that are enclosed on all sides or inte-
grated, the measures stated below must be implemented.
■Ensure adequate ventilation.
→The temperature inside the installation space should not exceed 40 °C.
■Include air vents in the upper front panelling.
→They should be at least as follows
570 mm with the Minimat 43 S
730 mm wide with the Minimat 64 M, 64 L
and 200 mm high.
■Install an additional fan with a thermostat.
3.5.6. Appliance ID
Attach the supplied identication label at a height of 1.60 m above oor level on
the appliance where it can be seen clearly.
NOTICE
Note that the information on minimum spacing refers to appliance combinations
without accessories. More information can be found in the individual installation
plans.

Page 18 9401-130-001-EN · Version 18-01 · Minimat
The electrical connections must be made within the specied
installation window, but not lower than the water connection.
Every mains plug must be accessible after installation too. If this
is not possible, then a main switch must be provided on-site.
This main switch must be specically assigned to the
connected units and be obvious to the user.
The cross-sections of the connection lines conform with the
power consumption and the local conditions.
■Use a separate fuse-protected supply cable for each
appliance.
Electrical connection installation window
1100 mm
1800 mm
3.6 Connections on-site
3.6.1 Electrical connection
DANGER
Risk of electric shock!
Electrical connection of the device may only be carried out by an electrician
according to electrical industry rules.
Electrical fuse protection of the plug socket must be provided with a fault-circuit
current-breaker. Observe guidelines from the VDE and the local power companies.
Outside Germany, observe the corresponding regulations that apply in your country.
3.6.1.1 Connection of the equipotential bonding
The connection for equipotential bonding is located at the rear of the appliance.
It is marked with the standard symbol.
If stipulated, make the connection with the equipotential bonding conductor provided by the
customer.

Page 19
Minimat · Version 18-01 · 9401-130-001-EN
A tap with pipe aerator and backow preventer, tested according to DIN - DVGW,
must be available on site for the water connection. A class “ED” backow
preventer must not be used.
Outside Germany, observe the corresponding regulations that apply in your
country.
Only ever use the supplied new water intake hose for the water connection.
This is a food-grade ½" pressure hose with a ¾" threaded joint tested according
to DIN-DVGW (WIESHEU GmbH item no. 104476). Make the connection exible
such that it is possible to move the appliance one metre away from the wall for
servicing.
Do not use any old hose sets to connect the appliances.
3.6.2 Plumbed-in water connection for the steaming unit
The water supply must be of drinking water quality (according
to drinking water ordinance).
The water temperature should not exceed +50 °C.
The water connections must be made within the specied
installation window, but not higher than the electrical
connection.
The water connection has to be accessible also after the
installation. We recommend installing a stopcock on site if the
above is not possible.
The ow pressure of the water must not exceed 600 kPa.
A pressure regulator must otherwise be installed on site.
Water connection installation window
3.6.2.1 Connecting a water ltration system
The steaming unit should only be supplied with drinking water, which ows through an appropriate water lter.
What is known as "complete demineralisation" of the water is important for the
proper functioning of the appliance and its steam system. The lter-head is set
to level "0". The entire water volume ows through the water lter so that no
unltered water is mixed in via the bypass.
■ Pay attention to the notices in the user information of the water lter.
1100 mm
400 mm

Page 20 9401-130-001-EN · Version 18-01 · Minimat
3.6.3 Exhaust air connection
Technical damage!
If no steam reducer is installed, the escaping/rising steam can negatively a󰀨ect
the existing store safety devices, or even trigger them.
NOTICE
■Vent the exhaust air upwards from the rear of the appliance.
→The exhaust air should not come close to the area of the side air vents.
■Vent the exhaust air upwards individually for each appliance.
■The exhaust air from several ovens must not be merged.
■The exhaust air routing is stipulated for the Minimat and installed rigidly in the
installation space; it must not be altered.
■Lay the exhaust line from the bottom.
→The cross-sections of the exhaust line must not be reduced.
■Vent the condensate that accumulates via a hose.
→The condensate hose must not be kinked.
■Drain the condensate on the construction side via an appropriate medium.
→Via a heat- and corrosion-resistant canister, a channel or a siphon, for
example.
The steam reducer of the Minimat is not equipped with an air exhaust.
→It is not possible to connect it to an existing exhaust air system.
→Where required, integrate a central air exhaust system.
Each time the device is used, the customer assumes full responsibility for the
safety of any people nearby.
■Before starting work on the appliance, read the associated user information.
■Ensure that it is possible in an emergency, to take the correct measures and
to switch o󰀨 and secure the appliance(s).
CAUTION
WARNING Danger of explosion!
There is a risk of explosion due to residues caused by manufacturing the trays.
Clean the trays thoroughly before initial commissioning.
3.7 Commissioning
Irritant to respiratory tract!
When the oven is heated, substances can escape which arise from the manu-
facturing process. These substances may cause irritation to the respiratory tract.
Ensure that the area is well ventilated at initial commissioning.
■Heat the device with inserted, cleaned trays for approx. 30 minutes at 180 °C
before initial commissioning.