Memmert Vacuum Oven Vo User Manual

VO

OPERATING MANUAL

VACUUM OVEN VO

MADE IN GERMANY.

www.memmert.com

Manufacturer and customer service

MEMMERT GmbH + Co. KG
Willi-Memmert-Straße 90-96
91186 Büchenbach
Germany

Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Internet: www.memmert.com

Customer service:
Service hotline: [phone]
Service fax: [phone]
E-mail: [e-mail]

When calling for service enquiries, please state the appliance number given on the name­plate (see page 15).

Shipping address for repairs:
Memmert GmbH + Co. KG
Customer service
Willi-Memmert-Str. 90-96
DE-91186 Büchenbach
Germany

Please contact our customer service department before sending appliances for repair or
before returning equipment, or the shipment may be refused.

© 2019 MEMMERT GmbH + Co. KG
D39374 | Date 12/2019
Subject to change without notice

About this manual

About this manual

Purpose and target audience

This manual describes the assembly, function, transport, putting into operation, opera­tion, troubleshooting, maintenance and decommissioning/disposal of the vacuum oven
VO. It is intended for use by trained personnel of the owner, who have the task of oper­ating and/or maintaining the respective appliance.

If you are asked to work on the appliance, read this manual carefully before starting. Fa­miliarise yourself with the safety regulations. Only perform work that is described in this
manual. If there is something you do not understand, or certain information is missing,
ask your manager or contact the manufacturer. Do not do anything without authorisa­tion.

Versions

The appliances are available in different configurations and sizes. If specific equipment
features or functions are available only for certain configurations, this is indicated at the
relevant points in this manual.

The functions described in this manual refer to the latest firmware version.
Due to individual configurations and sizes, illustrations in this manual may be slightly dif-

ferent to the actual appearance. Function and operation are identical.

Other documents to be observed:

► Observe the relevant manual when operating the appliance with MEMMERT Atmo-

CONTROL computer software. Click on
open the AtmoCONTROL software manual.

► Please refer to the separate service manual for service and repair work (see page

63).

“Help” on the AtmoCONTROL menu bar to

Storage and resale

This operating manual belongs with the appliance and should always be stored where
persons working on the appliance have access to it. It is the owner's responsibility to
ensure that persons who are working on or are going to work on the appliance know
where to find the operating manual. We recommend that it is always stored in a protect­ed location close to the appliance. Make sure that the operating manual is not damaged
by heat or humidity. If the appliance is resold or transported and then set up again at a
different location, the operating manual must remain with it.

For the current version of this operating manual in PDF format, please go to http://www.
memmert.com/en/service/downloads/user-manual/ .

D39374 | Date 12/2019 3

Contents

Contents

1. For your safety 6

1.1 Terms and signs used ................................................................................................6

1.2 Product safety and dangers ...................................................................................... 6

1.3 Requirements of the operating personnel ................................................................ 7

1.4 Responsibility of the owner ......................................................................................8

1.5 Changes and alterations ........................................................................................... 8

1.6 Behaviour in case of malfunctions and irregularities ................................................8

1.7 Switching off the appliance in an emergency ........................................................... 8

2. Design and description 9

2.1 Design ...................................................................................................................... 9

2.2 Intended use ..........................................................................................................10

2.3 Function .................................................................................................................10

2.4 Materials used ........................................................................................................12

2.5 Electrical equipment ...............................................................................................12

2.6 Connections and interfaces .................................................................................... 12

2.7 Designation (nameplate) ........................................................................................ 15

2.8 Technical data .........................................................................................................16

2.9 Declaration of conformity.......................................................................................17

2.10 Ambient conditions ................................................................................................ 18

2.11 Scope of delivery ....................................................................................................18

2.12 Optional accessories ............................................................................................... 18

3. Delivery, transport and setting up 19

3.1 Delivery ..................................................................................................................20

3.2 Transport ................................................................................................................20

3.3 Unpacking .............................................................................................................. 20

3.4 Storage after delivery .............................................................................................20

3.5 Setting up ..............................................................................................................21

4. Putting into operation 25

4.1 Connecting the appliance ....................................................................................... 25

4.2 Install suction .........................................................................................................27

4.3 Insert thermoshelves ..............................................................................................28

4.4 Switching on .......................................................................................................... 29

5. Operation and control 30

5.1 Operating personnel ...............................................................................................30

5.2 Opening the door ................................................................................................... 30

5.3 Operating the appliance ......................................................................................... 31

5.4 Temperature monitoring ........................................................................................37

5.5 Pressure monitoring ............................................................................................... 41

5.6 Graph ..................................................................................................................... 42

5.7 Ending operation ....................................................................................................43

6. Malfunctions, warning and error messages 44

6.1 Warning messages of the monitoring function ...................................................... 44

6.2 Malfunctions, operating problems and appliance errors ....................................... 45

6.3 Power failure ..........................................................................................................47

4 D39374 | Date 12/2019

Contents

7. Menu mode 48

7.1 Overview ................................................................................................................ 48

7.2 Basic operation in menu mode using the example of language selection ...............49

7.3 Setup ......................................................................................................................50

7.4 Date and time ........................................................................................................53

7.5 Calibration .............................................................................................................. 54

7.6 Program ................................................................................................................. 59

7.7 Sounds ................................................................................................................... 60

7.8 Logging .................................................................................................................. 61

7.9 USER ID .................................................................................................................. 62

8. Maintenance and Servicing 63

8.1 Cleaning .................................................................................................................63

8.2 Regular maintenance .............................................................................................. 63

8.3 Repairs and Service ................................................................................................. 63

9. Storage and disposal 64

9.1 Storage ................................................................................................................... 64

9.2 Disposal .................................................................................................................. 64

Index 65

D39374 | Date 12/2019 5

For your safety

1. For your safety

1.1 Terms and signs used

In this manual and on the appliance itself, certain common terms and signs are used to
warn you of possible dangers or to give you hints that are important in avoiding injury or
damage. Observe and follow these notes and regulations to avoid accidents and dam­age. These terms and signs are explained below.

1.1.1 Terms used

WARNING

CAUTION

NOTICE

Warns of a dangerous situation that might lead to death or
serious injuries

Warns of a dangerous situation that might lead to moderate
or minor injuries

Warns of material damage

1.1.2 Signs used

Signs used

Danger of elec-

trocution

Gas bottles

Danger of

explosion

Follow the

instructions!

Dangerous

gases/vapours

Wear gloves Observe infor-

Danger of burns Danger of top-

mation in sepa-

rate manual

pling over

Disconnect the

mains plug

1.2 Product safety and dangers

The appliances described in this manual are technically sophisticated, manufactured
using high-quality materials and subject to many hours of testing in the factory. They
reflect the state of the art and comply with recognised technical safety regulations. How­ever, there are still risks involved, even when the appliances are used as intended. These
are described below.

6 D39374 | Date 12/2019

For your safety

WARNING

After removing covers, live parts may be exposed. Touching these
can lead to an electric shock. Disconnect the mains plug before
removing any covers. Work on the electrical system must only be
performed by qualifi ed electricians.

WARNING

Toxic gases or vapours may be produced in certain applications.
These can escape from the vacuum pump into the room. This can
injure people nearby.
The appliance may only be used for such applications if a suction is
attached to the vacuum pump used, which reliably keeps toxic gases
or vapours away from people. Observe the respective national regu­lations for occupational safety and environmental protection.

WARNING

Depending on operation, the surfaces in the interior of the appliance
and the chamber load may still be very hot after the appliance is
switched off. Touching these surfaces can cause burns. Wear heat­resistant protective gloves or wait until the appliance cools down
before touching.

WARNING

Gas bottles may burst or explode at high temperatures. Keep the
gas bottles away from open fl ames. Store gas bottles below 50 °C
and ensure that the location is always well ventilated. Prevent water
from penetrating as well as backfl ow into the gas bottles. It is es-
sential that you read the safety notes and instructions of the gas
supplier.

1.3 Requirements of the operating personnel

The appliance may only be operated and maintained by persons who are of legal age and
have been instructed accordingly. Personnel who are to be trained, instructed or who
are undergoing general training may only work with the appliance under the continuous
supervision of an experienced person.

Repairs may only be performed by qualified electricians. The regulations in the separate
service manual must be observed.

D39374 | Date 12/2019 7

For your safety

ONN

1.4 Responsibility of the owner

The owner of the appliance

► is responsible for the flawless condition of the appliance and for it being operated in

accordance with its intended use (see page 8);

► is responsible for ensuring that persons who are to operate or service the appliance

are qualified to do this, have been instructed accordingly and are familiar with the
operating instructions at hand;

► must know about the applicable guidelines, requirements and operational safety

regulations, and train staff accordingly;

► is responsible for ensuring that unauthorised persons have no access to the appli-

ance;

► is responsible for attaching a suction to the vacuum pump used if toxic gases or

vapours may arise as a result of the process;

► is responsible for ensuring that the maintenance plan is adhered to and that mainte-

nance work is carried out properly (see page 63);

► has to ensure that the appliance and its surroundings are kept clean and tidy, for

example through corresponding instructions and inspections;

► is responsible for ensuring that personal protective clothing is worn by operating

personnel, e.g. work clothes, safety shoes and protective gloves.

1.5 Changes and alterations

No unauthorised changes or alterations may be made to the appliance. No parts may be
added or inserted which have not been approved by the manufacturer.

Unauthorised changes or alterations result in the CE declaration of conformity losing its
validity, and the appliance may no longer be operated.

The manufacturer is not liable for any damage, danger or injuries that result from un­authorised changes or alterations, or from non-compliance with the provisions in this
manual.

1.6 Behaviour in case of malfunctions and irregularities

The appliance may only be used in a flawless condition. If you as the operator notice ir­regularities, malfunctions or damage, immediately take the appliance out of service and
inform your superior.

You can find information on troubleshooting from page 44.

1.7 Switching off the appliance in an emergency

Press the main switch on the ControlCOCKPIT
(Fig. 1) and disconnect the power plug.
This disconnects the appliance from the
power supply at all poles.

Fig. 1
Switch off the appliance by pressing the
main switch

8 D39374 | Date 12/2019

ON

2. Design and description

2.1 Design

཰

ཱ

ི

ཱི

Design and description

ུ

Fig. 2 Design
1 ControlCOCKPIT with capacitive function keys and LCD displays (see page 32)
2 Vacuum oven VO
3 Thermoshelves
4 Main switch Pump module
5 Pump module

D39374 | Date 12/2019 9

Design and description

2.2 Intended use

Vacuum ovens VO are used for drying, testing, moisture determination, airtight storage,
curing and degassing of substances or materials under vacuum, which are used in the
procedures and specifications described in the operating instructions.

The appliance is not explosion-proof. The use of explosive substances or materials is abu­sive and can lead to hazards or damage. The appliance may only be loaded with materi­als and substances which cannot form any explosive vapours at the set temperature and
which cannot explode, burst or ignite.

2.3 Function

The devices of the VO series (Fig. 3 ①) can generate a vacuum in working chamber③
in conjunction with Memmert pump module ②or another suitable vacuum pump. The
vacuum inlet on the back of appliance ④ evacuates the working chamber through the
pump.

Optionally, the working chamber can be supplied with inert gas through a connection on
the rear of the appliance ⑤⑥.

For temperature control thermal plates with electronic contacts are inserted into tube ⑦.
If the electronic contacts are connected to the connections in rear panel ⑧, the ther­moshelves can emit heat by direct contact with the load.

If toxic gases or vapours may be produced in the intended application, these must be
safely discharged by the customer via an extraction system and cleaned if necessary ⑨.

10 D39374 | Date 12/2019

1

Design and description

0

3

2

7 8

5

N

2

He
Ne

Ar
Kr

Xe

4

6

0

9

Fig. 3 Function of vacuum ovens VO in conjunction with a pump module
1 VO
2 Vacuum pump
3 VO working chamber
4 Hose connection between VO and vacuum pump
5 Gas cylinder (inert gas, optional)
6 Inert gas supply
7 Thermoshelves
8 Contacting the Thermoshelves in the appliance
9 Suction (required if toxic gases or vapours may be produced as a result of the process)
10 Wall mounting (tilt protection, see page 23)

D39374 | Date 12/2019 11

Design and description

2.4 Materials used

Component Materials

Housing Stainless steel (W.St.Nr. 1.4016)

Piping Stainless steel (W.St.Nr. 1.4571)

Interior Stainless steel (W.St.Nr. 1.4404), which stands out

Thermoshelves Aluminium. The vulcanised heating mat covered with

Plug connection of thermoshelf
and rear flange socket

Seals in solenoid valves and
flange sockets

Door seal Silicone

A resistance table for all these materials can be requested from the company MEMMERT.

through its high stability, optimal hygienic proper­ties and corrosion-resistance towards many (but not
all!) chemical compounds (caution for example with
chlorine compounds).

stainless steel on the underside of the thermoshelf is
made of silicone.

Ryton R4 (GF-PPS plastic) or Peek 450GL30

Fluorocarbon FKM / FPM (Viton)

2.5 Electrical equipment

► Operating voltage and current consumption: See nameplate
► Protection class I, i.e. operating insulation with PE conductor in accordance with EN

61010

► Protection class IP 20 acc. to EN 60529
► Interference suppression acc. to EN 55011 class B
► Appliance fuse: Safety fuse 250 V/15 A, quick-blow
► The temperature sensor is equipped with a 125 mA miniature fuse.

2.6 Connections and interfaces

2.6.1 Electrical connection

This appliance is intended for operation on an electrical power system with a system
impedance Z
operator must ensure that the appliance is operated only on an electrical power system
that meets these requirements. If necessary, you can ask your local energy supply com­pany what the system impedance is.

Observe the country-specific regulations when making connections (e.g. in Germany DIN
VDE 0100 with earth leakage circuit breaker).

12 D39374 | Date 12/2019

of a maximum of 0.292 ohm at the point of transfer (service line). The

max

Design and description

2.6.2 Fresh air, inert gas and vacuum connection

At the left rear post are the
connections for the inlet of fresh
air or inert gas (optional) and the
connection for the vacuum
pump (DN 16 KF, Fig. 4 and Fig.

5).

Fresh air

The fresh air connection has two
functions. On the one hand,
the device is ventilated via the
connection and thus the nega­tive pressure is adapted to the
atmospheric pressure. On the
other hand, the connection is
opened by the appliance con­troller for a very short time in
order to fine-tune the negative
pressure.

Fig. 4 Connections
on the back of VO 49
Premium and VO 101
Premium appliances
1 Fresh air supply
2 Inert gas connection
3 Vacuum pump con-

nection

1

2

3

Fig. 5 Connections
on the back of VO 29
Premium units and all
standard appliances
1 without function

(blanking plug)
2 Fresh air supply
3 Vacuum pump con-

nection

1

2

3

Inert gas (optional)

By applying inert gas to the working chamber, a protective atmosphere can be created
which protects the load from contact with ambient air.

Vacuum

The vacuum connection is designed as an ISO-KF connection of size DN 16. Either the
supplied pump module or another suitable external vacuum pump are connected to it.

When using an external vacuum pump, make sure that the pump is suitable for the ma­terial being fed and the desired process.

Required parameters of a suitable pump:

► Pumping speed > 30 Nl/min
► Final vacuum ≤ 3 mbar
► chemical-resistant version
► temperature resistant (exhaust gas temperature like working temperature)

D39374 | Date 12/2019 13

Design and description

2.6.3 Communication interfaces

The communication interfaces are intended for appliances which meet the requirements
of IEC 60950-1.

USB interface

The appliance is fitted by default with a
USB port in accordance with the USB speci­fication. This way, you can

► transfer software stored on a USB stor-

age medium to the appliance (see page

59).

► export protocol logs from the appliance

to a USB storage medium (see page

61).

Fig. 6 USB interface

► transfer user ID data stored on a USB storage medium to the appliance (see page

62).

The USB port is located on the right of the ControlCOCKPIT (Fig. 6).

Ethernet interface

The appliance can be connected to a network via the
Ethernet interface, so that you can transfer
programmes created with the AtmoCONTROL
software to the appliance and read out protocols.
The Ethernet interface is located on the rear of
the appliance (Fig. 7).

For identification purposes, each appliance con­nected must have its own unique IP address.
Configuration of the IP address is described on
page 50.

You will find a description of how to transfer programs via Ethernet in the
enclosed AtmoCONTROL manual.

Fig. 7 Ethernet interface

The appliance can be directly connected to a computer / laptop using an optional USB to
Ethernet converter (see Scope of delivery on page 18).

2.6.4 Switching output for external vacuum pump purge valve and pump control

The 8-pin switching output on the rear right post
(Fig. 8) is used to control the vacuum pump of
the optional pump module (PM) through the
vacuum oven (VO). The switching output is
backwards-compatible with the 3-pole contact of
older pump modules. For this purpose, plug the
3-pole cable into the 8-pole contact.

Fig. 8 Switching output

14 D39374 | Date 12/2019

Design and description

Vacuum pump rinsing valve

When drying feed materials with a high moisture content, the pump capacity may de­crease during prolonged operation due to condensation in the pump heads. The dia­phragms are blown free by briefly flushing the pump heads with fresh air.

This improves the efficiency of the drying process. In combination with the optionally
available pump modules PM29, PM49 and PM101, this cyclical flushing takes place auto­matically when the pump output decreases. The drying process is thus faster and more
energy-saving and the pump is protected.

Speed control and switch-off of the vacuum pump

After completing a drying program or after a long period of operation without a vacuum
request from the controller, the vacuum pump installed in the pump module (PM) is
switched off via the control line. The demand-controlled pump speed control saves
energy, is low-noise and increases the service life of the vacuum pump by protecting the
pump diaphragms.

Note: A control signal switches off the pump module (PM) installed in the optional
vacuum pump. The operating light in the main switch of the pump module also lights up
if the vacuum pump has been switched off via the control line.

2.7 Designation ( nameplate)

The nameplate (Fig. 9) provides information about the appliance model, manufacturer
and technical data. It is attached to the front of the appliance, on the right behind the
door.

1

2

3

4

5

6

Fig. 9 Nameplate (example)
1 Type designation

2 Operating voltage
3 Applicable standard
4 Protection type
5 CE conformity

D39374 | Date 12/2019 15

Typ: VO49
230 V~ 50/60 Hz
DIN12880-2007-Kl.: 1

Schutzart DIN EN 60529 - IP 20

GmbH+Co.KG D-91126 Schwabach FRG



Äußere

Rittersbacher Str. 38 Made in Germany

F-Nr.: S318.3008

8,8 A 202 W

Nenntemp.: 20-200°C

6 Address of manufacturer
7 Disposal note
8 Temperature range
9 Connection / power ratings
10 Appliance number

10

9

8

7

Design and description

p

2.8 Technical data

Appliance size 29 49 101

Appliance width D1 [mm] 550 550 710
Appliance height E1 [mm] 600 680 760
Appliance depth F1 [mm] 400 480 550

th of door lock [mm] 38

De
Chamber width A
Chamber height B

Chamber depth C

Base

Chamber volume [litres] 29 49 101
Weight [kg] 62 74 100
Power [W] 820 2020 2420
Current consumption [A] 230 V, 50/60 Hz 3.6 8.8 10.5

max. number of ther­moshelves

max. load per Thermoshelf [kg] 20
max. load per appliance [kg] 60 80 150

Temperature

Pressure

1

See Fig. 10

2

The minimum temperature depends on the outdoor temperature (see ambiant conditions on page

18).

1

[mm] 385 385 545

1

[mm] 305 385 465

1

[mm] 250 330 400

Width G [mm] 529 529 689
Height H [mm] 450 290 130
Depth I [mm] 383 463 533

Standard 1 2 2
Premium 2 4 4

Adjustment range 20 °C to 200 °C
Adjustment precision 0.1 K
Operating temperature range 5°C above room temperature up to 200°C
Adjustment range 5 mbar - 1100 mbar
Adjustment precision 1 mbar

-2

Leak rate ≤ 0.5 x 10

mbar 1/sec

16 D39374 | Date 12/2019

Design and description

80 80

D

A

12

12

F

C

200

80

200

E E

38

200

B

80

40

G

H

40

I

Fig. 10 Dimensions

2.9 Applied directives and standards

Based on the standards and guidelines listed in the following, the products described
in this manual have received a CE label from the company Memmert:

► Directive 2014/30/EC amended (Directive of the European Parliament and of the

Council on the approximation of the laws of the Member States relating to electro­magnetic compatibility). Standards complied with:
DIN EN 61326:2004-05, EN 61326:1997, EN 61326/A1:1998, EN 61326/A2:2001
EN 61326/A2:2003

D39374 | Date 12/2019 17

Design and description

► Directive 2014/35/EC amended (Directive of the European Parliament and of the

Council on the harmonisation of the laws of Member States relating to electrical
equipment designed for use within certain voltage limits). Standards complied with:
DIN EN 61 010-1 (VDE 0411 part 1)
DIN EN 61 010-2-010 (VDE 0411 part 2-010)
EN 61 010-1:2001, EN 61 010-2-010

2.10 Declaration of conformity

You can download the EC declaration of conformity of the appliance online:
English: http://www.memmert.com/en/service/downloads/ce-statement/
German: http://www.memmert.com/de/service/downloads/eg-konformitaetserklaerung/

2.11 Ambient conditions

► The appliance may only be used in enclosed areas and under the following ambient

conditions:

Ambient temperature

Humidity rh max. 80 % non-condensing

Overvoltage category II

Pollution degree 2

Altitude of installation max. 2,000 m above sea level

+5 ºC to +40 ºC

► The appliance may not be used in areas where there is a risk of explosion. The ambi-

ent air must not contain any explosive dusts, gases, vapours or gas-air mixtures. The
appliance is not explosion-proof.

► Heavy dust production or aggressive vapours in the vicinity of the appliance could

lead to sedimentation in the interior and, as a consequence, could result in short
circuits or damage to electrical parts. For this reason, sufficient measures to prevent
large clouds of dust or aggressive vapours from developing should be taken.

2.12 Scope of delivery

► Power cable
► Tilt protection
► Thermoshelves (Standard and Premium VO 29 1 shelf; Premium VO 49 and VO 101 2

shelves)

► USB storage medium with software and AtmoCONTROL manual
► the operating instructions at hand
► Calibration certificate

2.13 Optional accessories

With an Ethernet-USB converter (Fig. 11) it is
possible to connect the Ethernet port of
the appliance (see page 14) to the USB
port of a PC/laptop.

Fig. 11 USB to Ethernet converter

18 D39374 | Date 12/2019

Delivery, transport and setting up

3. Delivery, transport and setting up

WARNING

The appliance may only be lifted and placed with a special lifting de­vice. This lifting device must be used for lifting and carrying. Without
a lifting device there is a great risk of injury!

The lifting device can be purchased from the dealer under the order number B04456
(VO29/49) or B04457 (VO101). Either the dealer sends the device to the customer or the
dealer assembles the appliances himself with the device.

To set up appliances of the sizes 29 and 49,
at least two persons, for appliances of size
101, four persons are needed.

To lift the appliance, guide the lifting device
under the appliance from both sides (Fig. 12)
and lift the appliance.

29 49 101

Fig. 12 Lifting equipment

WARNING

There is a risk of tipping when stacking on a pump module. Do not
move stacked device combinations.

D39374 | Date 12/2019 19

Delivery, transport and setting up

3.1 Delivery

The appliance is packed in cardboard and is delivered on a wooden palette.

3.2 Transport

The appliance can be transported in three ways:

► With a forklift truck; move the forks of the truck entirely under the pallet.
► On a manual pallet jack
► (only with the lifting device)

3.3 Unpacking

To avoid damage, do not unpack the appliance until you reach the installation site.

Remove the cardboard packaging by pulling it upwards or carefully cutting along an
edge.

3.3.1 Checking for completeness and transport damage

► Check the delivery note to ensure that the scope of delivery is complete.
► Check the appliance for damage.

If you notice deviations from the delivery note, damage or irregularities, do not put the
appliance into operation but inform the haulage company and the manufacturer.

3.3.2 Remove the transportation lock

Remove the transportation lock. It is located between the door hinge, door and frame
and has to be removed after opening the door.

3.3.3 Disposing of packaging material

Dispose of the packaging material (cardboard, wood, foil) in accordance with the appli­cable disposal regulations for the respective material in your country.

3.4 Storage after delivery

If the appliance is first to be stored after delivery: Read the storage conditions from page

64.

20 D39374 | Date 12/2019

Delivery, transport and setting up

3.5 Setting up

CAUTION

Stacked combinations of appliances can tip over due to their centre
of gravity and injure you or someone else. Always attach the appli­ance to a wall with the tilt protection (see page 23). In case there
is not enough space, do not put the appliance into operation and
do not open the door. Contact the Memmert service (see page 2).

3.5.1 Preconditions

The installation site must be flat and horizontal and must be able to reliably bear the
weight of the appliance (see "Technical data" on page 16). Do not place the appliance
on a flammable surface.

A 230 V power connection must be available at the installation site. The maximum mains
voltage fluctuation is +/- 10%.

The distance between the wall and the rear of the appliance must be at least 15 cm. The
clearance from the ceiling must not be less than 20 cm and the side clearance from walls
or nearby appliances must not be less than 5 cm (Fig. 13). Sufficient air circulation in the
vicinity of the appliance must be guaranteed at all times.

FP

FP FP FP

Fig. 13 Minimum clearance from walls and ceiling

D39374 | Date 12/2019 21