Nabertherm TR 60, TR 1050 Operating Instructions Manual

Operating Instructions

Oven

TR 60 - TR 1050

->11.2015 M01.0063 ENGLISCH

Original instructions

www.nabertherm.com

 Made

 in

 Germany

2

Copyright

 Copyright by
Nabertherm GmbH
Bahnhofstrasse 20
28865 Lilienthal
Federal Republic of Germany

Reg: M01.0063 ENGLISCH
Rev: 2017-04

No responsibility is accepted for the correctness of this information. We
reserve the right to make technical alterations.

3

1 Introduction ........................................................................................................................................................... 5

1.1 Product Description ........................................................................................................................................... 6

1.2 Overview of the Complete Furnace ................................................................................................................... 7

1.3 Safeguarding against Dangers from Excess Temperatures ............................................................................. 10

1.3.1 Key to the Model Names ............................................................................................................................ 11

1.4 Scope of Delivery ............................................................................................................................................ 12

2 Specifications ....................................................................................................................................................... 13

2.1 Warranty and Liability .................................................................................................................................... 15

3 Safety .................................................................................................................................................................... 15

3.1 Defined Application ........................................................................................................................................ 15

3.2 Requirements for the Furnace Operator .......................................................................................................... 17

3.3 Requirements for the Operating Personnel ...................................................................................................... 18

3.4 Protective Clothing .......................................................................................................................................... 19

3.5 Basic Measures During Normal Operation ..................................................................................................... 19

3.6 Basic Measures in Case of Emergency ........................................................................................................... 19

3.6.1 What to Do in an Emergency ...................................................................................................................... 19

3.7 Basic Measures for Servicing and Maintenance.............................................................................................. 20

3.8 Environmental Regulations ............................................................................................................................. 21

3.9 Explanation of the Symbols and Warnings ..................................................................................................... 22

3.10 General Risks with the Furnace....................................................................................................................... 25

4 Transportation, Installation and Initial Start-Up ............................................................................................. 27

4.1 Delivery ........................................................................................................................................................... 27

4.2 Unpacking ....................................................................................................................................................... 29

4.3 Transport Securing Device/Packaging ............................................................................................................ 31

4.4 Constructional and Connection Requirements ................................................................................................ 32

4.4.1 Installation (Furnace Location) ................................................................................................................... 32

4.4.2 Ovens May Be Stacked ............................................................................................................................... 34

4.5 Assembly, Installation, and Connection .......................................................................................................... 34

4.5.1 Venting Exhaust Fumes .............................................................................................................................. 34

4.5.2 Connecting the Furnace to the Power Supply ............................................................................................. 35

4.6 Initial Start-Up ................................................................................................................................................ 37

4.7 Recommendations for Heating Up the Furnace for the First Time ................................................................. 38

5 Operation ............................................................................................................................................................. 38

5.1 Controller ........................................................................................................................................................ 38

6 Operation, Display and Switch Elements (depending on design) .................................................................... 39

6.1 Turning on the Controller/Furnace .................................................................................................................. 39

6.2 Turning off the Controller/Furnace ................................................................................................................. 39

6.3 Operating Controller R7 .................................................................................................................................. 39

6.4 Operation of Over-Temperature Limiter ......................................................................................................... 42

6.5 Over-temperature Limiter with Manual Reset................................................................ ................................. 43

6.5.1 Mechanical Over-Temperature Limiter with Manual Reset ....................................................................... 43

6.5.2 Electrical Over-Temperature Limiter with Manual Reset ........................................................................... 44

6.6 Controlling the Exhaust Air ............................................................................................................................ 45

6.7 Controlling the Air Circulation (Accessory) ................................................................................................... 45

6.8 Adjusting the Baffles ....................................................................................................................................... 46

4

6.9 Opening and Closing the Door ........................................................................................................................ 47

6.10 Adjusting the Removable Grids ...................................................................................................................... 48

7 Servicing, Cleaning, and Maintenance .............................................................................................................. 49

7.1 Furnace Insulation ........................................................................................................................................... 50

7.2 Shutting Down the Furnace for Servicing, Cleaning, and Maintenance.......................................................... 51

7.3 Regular Maintenance of the Furnace ............................................................................................................... 52

7.4 Operating and Auxiliary Materials .................................................................................................................. 53

7.5 Cleaning Products ........................................................................................................................................... 53

7.6 Cleaning Inside the Oven ................................................................................................................................ 54

8 Malfunctions ........................................................................................................................................................ 58

8.1 Error Messages of the Controller .................................................................................................................... 59

8.2 Warnings of the Controller .............................................................................................................................. 61

8.3 Malfunctions of the Switchgear ...................................................................................................................... 63

8.4 Controller Check List ...................................................................................................................................... 64

9 Spare Parts/Wearing Parts ................................................................................................................................. 66

9.1 Replacing a Heating Element .......................................................................................................................... 69

9.2 Replacing a Thermocouple .............................................................................................................................. 74

9.3 Replacing Door Seals ...................................................................................................................................... 76

9.4 Door Adjustment ............................................................................................................................................. 78

9.5 Electrical Schematics/Pneumatic Schematics ................................................................................................. 80

9.6 Separate the Snap-In Coupling (Plug) from the Furnace Housing .................................................................. 80

10 Nabertherm Service............................................................................................................................................. 81

11 Shut-Down, Dismantling, and Storage............................................................................................................... 82

11.1 Transportation/Return Transportation ............................................................................................................. 83

12 Declaration of Conformity .................................................................................................................................. 84

13 For Your Notes .................................................................................................................................................... 85

5

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1 Introduction

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Dear Customer,

Thank you for choosing a quality product from Nabertherm GmbH.
You can be proud that you have chosen a furnace which has been especially tailored to suit

your manufacturing and production conditions.
This product is characterized by

 professional workmanship
 high performance due to its high efficiency
 high-quality insulation
 low power consumption
 low noise level
 simple installation
 easy to maintain
 high availability of spare parts

Your Nabertherm Team

Note

These documents are intended only for buyers of our products and may not be copied or
disclosed to third parties without our written consent. (Law governing copyright and
associated protective rights, German Copyright Law from Sept. 9, 1965)

Protective Rights

Nabertherm GmbH owns all rights to drawings, other documents and authorizations, also
in case of applications for protective rights.

Note

All the figures in the instructions have a descriptive character; in other words, they do not
represent the exact details of the furnace.

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Note

The pictures contained in the instruction manual may contain inaccuracies in terms of the
function, design and furnace model.

6

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1.1 Product Description

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These electrically heated furnaces are a high-quality product which will give you many
years of reliable service if they are properly cared for and maintained. One basic
prerequisite is that the furnace is used the way it was designed to be used.

During development and production a high priority was placed on safety, functionality
and economy.

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With their maximum working temperature of up to 300 °C (572 °F) and forced air
circulation, the ovens achieve a perfect temperature uniformity which is much better than in
ovens of most competitors. They can be used for various applications such as e.g. drying,
sterilizing or warm storing. Ample warehousing of standard models provides for short
delivery times.

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Other Characteristics of this Product are:

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 Tmax 300 °C
 Working temperature range: + 5 °C above room temperature up to 300 °C
 Models TR 60 – TR 240 designed as tabletop models
 Models TR 450 – TR 1050 designed as floor-standing models
 Horizontal, forced air circulation results in temperature uniformity better than +/- 5 °C
 Stainless steel chamber, alloy 304 (AISI)/(DIN material no. 1.4301), rust-resistant and

easy to clean

 Large handle to open and close the door
 Charging in multiple layers possible using removable grids (number of removable

grids included, see "Specifications")

 Large, wide-opening swing door, hinged on the right with quick release for models

TR 60 – TR 450

 Double swing door with quick release for TR 1050
 TR 1050 equipped transport rollers
 Infinitely adjustable exhaust at the rear wall with operation from the front
 PID microprocessor control with self-diagnosis system
 Solid state relays provide for lownoise heater operation

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Additional Equipment

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 Over-temperature limiter with manual cut-off temperature for thermal protection class

2 in accordance with EN 60519-2 as temperature limiter to protect the oven and load

 Infinitely adjustable fan speed of the air circulation fan
 Window for charge observing
 Further removeable grids with rails
 Side inlet
 Stainless steel collecting pan to protect the furnace chamber
 Safety technology according to EN 1539 for charges containing liquid solvents (TRS)

up to model TRS 240, achievable temperature uniformity +/- 8 °C

 Transport costors for model TR 450
 Various modifications available for individual needs
 Upgrading available to meet the quality requirements of AMS 2750 E or FDA

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 Process control and documentation via VCD software package for monitoring

7

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1.2 Overview of the Complete Furnace

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Fig. 1: Overview: The model shown here is the TR 120 drying oven with accessories (similar to picture)

8

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Fig. 2: Operating elements - front view (similar to picture)

Fig. 3: Operating elements - rear view (similar to picture)

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No.

Designation

1

Swing door (with viewing panel and inside lighting as accessories). Double swing door on Model TR
1050

2

Oven chamber

3

Air circulation motor

4

Handle

5

Thermocouple

6

Grids for charging on several levels

7

Balancing screws to level the feet.

7a

Model TR 1050 with transport rollers (transport rollers available as an accessory for Model TR 450)

8

Allround seal

9

No.

Designation

9

Reset button for over-temperature limiter

10

Interface RJ45 Ethernet socket

11

Switchgear fan

12

Exhaust channel with butterfly valve

13

Power plug (to 3600 watts) with snap-in coupling

14

CEE power plug (from 16 A)

15

Mechanical over-temperature limiter (accessory)

16

Infinitely adjustable air-circulation speed (accessory)

17

Infinitely adjustable exhaust system via a butterfly valve in the rear wall

18

USB interface

19

Controller B410, C450 or P480 (depending on model)

19a

Controller R7 (depending on model).

20

Over-temperature limiter with manual cut-off temperature for thermal protection class 2 in
accordance with EN 60519-2 as a temperature limiter to protect the oven and the load (accessory)

21

Power switch with integrated fuse (switching oven on/off)

22

Heating (ON/OFF)

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Additional Equipment

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Viewing window to observe the
charge with inside lighting

Side inlet

Fig. 4: Example: Accessories (similar to picture)

10

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Accessories

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Option to connect an exhaust air
nozzle on the rear of the oven for
connecting an exhaust air system

Removable grids to load the oven on
different levels

Removable trays to load the oven on
different levels

Stainless steel collection pan to
protect the inside of the oven

Fig. 5: Example: Accessories (similar to picture)

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Safety control circuit

1.3 Safeguarding against Dangers from Excess Temperatures

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Over-temperature limiters and over-temperature limiters with automatic reset to protect
against over-temperature in the furnace are available for Nabertherm GmbH furnaces either
as a standard feature (depending on the model series) or as additional equipment
(customized design).

Over-temperature limiters and over-temperature limiters with automatic reset monitor the
furnace temperature. The display shows the most recently set cut-off temperature. If the
furnace temperature rises above the pre-set cut-off temperature, the heating is shut down to
protect the furnace, the charge and/or the operating equipment.

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DANGER

• Danger caused by incorrectly entered cut-off temperature at
the over-temperature limiter/over-temperature limiter with
motor driven reset.

• Risk of fatal injury

• If, as a result of over-temperature from the charge and/or the

operating equipment, a charge is likely to be damaged at this pre­set cut-off temperature of the over-temperature limiter/over­temperature limiter with motor driven reset, or if the charge itself
becomes a source of danger for the furnace or its surroundings,
the cut-off temperature must be reduced on the over-temperature
limiter/over-temperature limiter with motor driven reset to the
maximum permissible value.

11

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Read the operating instructions of the over-temperature limiter/over-temperature limiter
with automatic reset before starting the furnace. The safety sticker must be removed from
the over-temperature limiter/over-temperature limiter with automatic reset. When a change
is made in the heat treatment program, the maximum permissible cut-off temperature
(alarm trigger temperature) on the over-temperature limiter/over-temperature limiter with
automatic reset must be checked or re-entered.

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Depending on the physical characteristics of the furnace, we recommend that you set the
maximum target temperature of the heating program in the controller between 5 °C and
30 °C below the trigger temperature of the over-temperature limiter/over-temperature
limiter with automatic reset. This prevents unwanted triggering of the over-temperature
limiter/over-temperature limiter with automatic reset.

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Description and function, see the
Operating Instructions of the over­temperature limiter/over-temperature
limiter with automatic reset.

Fig. 6: Removing the sticker (similar to picture)

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1.3.1 Key to the Model Names

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Example

Explanation

TR 240
TR = Drying oven

TR 240
60 = 60 liter oven chamber (volume in L)

120 = 120 liter oven chamber (volume in L)
240 = 240 liter oven chamber (volume in L)
450 = 450 liter oven chamber (volume in L)
1050 = 1050 liter oven chamber (volume in L)

12

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Fig. 7: Example of model name (type plate)

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1.4 Scope of Delivery

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The Scope of Delivery Includes:

Oven Components

Quantity

Comment

Drying oven1)

1 x

Nabertherm GmbH

Power cable2)

1 x

Nabertherm GmbH
Removable grids4)

3)

Nabertherm GmbH

Other components, variable depending on
the particular oven

- - -

See shipping papers

Document Type

Quantity

Comment

Drying oven operating instructions

1 x

Nabertherm GmbH

Operating instructions for Controller1)

1 x

Operating Instructions
VCD software package1)

Other documents, variable depending on the
particular oven

1 x

1)

in scope of delivery depends on design/furnace model

2)

in scope of delivery depend on need, see shipping papers

3)

quantity depends on furnace model

4)

quantity depends on on need, see shipping papers

Note

Store all documents carefully. All the functions of this oven were tested during
manufacturing and prior to shipping.

TR 240 SN 123456 2016

TR-240X023 300 °C 2,3-3,3 kW

- 200-240 V 1/N/PE~ -

50 Hz 11,6-13,8 A 2,3-3,3 kW

13

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Note

The documents included do not always contain the electrical schematics and pneumatic
diagrams.

If you need the respective diagrams, they can be ordered from Nabertherm Service.

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2 Specifications



Electrical specifications are on the type plate located on the side of the furnace.

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Model

Tmax

Inner dimensions

in mm

Outer dimensions

in mm

Volume

Weight
°C w d h W

D1

H

in l

in kg

TR 60

300

450

390

350

700

610

710

60

90

TR 120

300

650

390

500

900

610

860

120

120

TR 240

300

750

550

600

1000

780

970

240

165

TR 450

300

750

550

1100

1000

780

1470

450

235

TR 1050

300

1200

670

1400

1470

940

1920

1050

450

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Model

Heating power

Grids

Grids

Max. total load

in kW2

included

max.

in kg3

TR 60

3 1 4

120

TR 120

3 2 7

150

TR 240

3 2 8

150

TR 450

6 3 15

180

TR 1050

9 4 14

250

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1

Dimensions include door handle and supply/exhaust air ducts

2

Depending on furnace design connected load might be higher

3

Max load per layer 30 kg

Note: Drying ovens up to TR 240 can be stacked

14

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Fig. 8: Dimensions (similar to picture)

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Electrical Connection

1-phase:

3-phase:

Voltage:

200 V – 240 V

200 V – 240 V
or
380 V – 400 V

Frequency:

50 or 60 Hz

50 or 60 Hz

Rated power:

TR
60

TR 120

TR 240

TR 450

TR 1050

3
kW

3 kW

3 kW

6 kW

9 kW

Power plug

TR 60 – TR 240

TR 450 – TR 1050

Grounded plug (with snap-

in socket)

CEE plug

Thermal Protection Class

Ovens:

according to DIN EN 60519-2

without safety controller: Class 0
with safety controller: Class 2

Protection Type

Ovens:

IP20

Ambient Conditions for
Electrical Equipment

Temperature:
Humidity:

+5 °C to +40 °C
max. 80 % non condensing

Weights

Oven with accessories

Varies (see shipping papers)

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Emissions

Continuous sound pressure
level:

< 80 dB(A)

W

D1

H

w

h

d

15

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2.1 Warranty and Liability

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§

As regards warranty and liability, the normal Nabertherm warranty terms apply,
unless individual terms and conditions have been agreed. However, the following
conditions also apply:

Warranty and liability claims for personal injury or damage to property shall be excluded if
they are attributable to one or more of the following causes:

 All persons involved in operation, installation, maintenance, or repair of the furnace

must have read and understood the operating instructions. No liability will be accepted
for damage or disruption to operation resulting from non-compliance with the
operating instructions.

 Not using the furnace as intended,
 Improper installation, start-up, operation, or maintenance of the furnace,
 Operation of the furnace with defective safety equipment or improperly installed or

non-functioning safety and protective equipment,

 Not observing the information in the operating instructions with respect to

transportation, storage, installation, start-up, operation, maintenance, or equipping the
furnace,

 Making unauthorized changes to the furnace,
 Making unauthorized changes to the operating parameters,
 Making unauthorized changes to the parameterization, the settings, or the program,
 Nabertherm accepts absolutely no liability for damage caused by using parts that are

not original Nabertherm parts. Original parts and accessories are designed especially
for Nabertherm furnaces. Replace parts only with original Nabertherm parts.
Otherwise the warranty will be void.

 Catastrophes due to third-party causes and force majeure.

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3 Safety

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3.1 Defined Application

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Safety

The Nabertherm furnace was designed and built in conformance with a careful selection
of the applicable harmonized standards and other technical specifications. Hence, it
corresponds to the state of the art and assures the greatest degree of safety.

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 Only materials whose characteristics and melting temperatures are known may be

heated. Consult any available safety data sheets of the materials. Any other use
beyond this is improper, including the processing of products other than those for
which the furnace was intended as well as handling hazardous materials or materials
dangerous to health, and must be approved in writing by the manufacturer Nabertherm
GmbH.

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Safety

 TR-series drying ovens are suitable for drying and heat-treating solid materials,

powders, and bulk materials. Solvents used in the materials must not be explosive or
ignitable. The components of the charge must NOT form explosive mixtures in
combination with air. The interior temperature must remain below the flash point or
sublimation point of the charge.

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Safety

 Any other use, such as processing of products other than those for which the furnace

was intended as well as handling hazardous materials or materials dangerous to health
is deemed IMPROPER and such uses must be approved in writing by Nabertherm.

16

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 Under certain circumstances gases or materials may be released from the materials in

the furnaces that settle on the insulation or the heating elements and destroy them. If

applicable, read the labels and instructions on the packaging of materials that
you use.

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 Furnaces with over-temperature limit controllers must have their shut-down

temperatures set to prevent any overheating of the material.

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 The set-up instructions and safety regulations must be followed, otherwise the furnace

will be considered improperly used, effectively cancelling any claims against
Nabertherm GmbH. The EC Declaration of Conformity will cease to be valid if any
modifications are made to the machine without our approval.

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 The set-up instructions and safety regulations must be followed, otherwise the furnace

will be considered improperly used, effectively cancelling any claims against
Nabertherm GmbH.

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 Opening the furnace while it is still hot, over 200 °C (392 °F), can lead to increased

wear of the following components: insulation, door seal, heating elements and furnace
housing. No liability shall be accepted for any damage to the goods or the furnace
resulting from non-compliance with this warning.

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 Operation with power sources, products, operating equipment, auxiliary materials,

solvents, etc., which are listed as hazardous or which may in any way harm the health
of the personnel operating the furnace is prohibited.

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 Operation with explosive gases or mixtures, i.e., including any explosive gases or

mixtures created as a result of heating/drying, is prohibited.

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Note

Due to the special requirements of the German Medical Devices Law (MPG), these ovens
are NOT suitable for sterilizing medical products in terms of European Directive
93/42/EEC.

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Note

The furnace must not be operated with explosive gases or mixtures or with
explosive gases or mixtures that form during the process.

This furnace has no safety technology for processes in which combustible mixtures
can form, such as debinding.
If the furnace is to be used for such processes, the concentration of organic gases must
never exceed 3 % of the lower explosive limit (LEL) in the furnace. This requirement
not only applies to normal operation, but also especially to exceptions, such as process
malfunctions (e.g. due to the breakdown of a unit, etc.). Ensure adequate extraction
and ventilation of the furnace.

Nabertherm offers a wide range of furnaces that were especially developed for processes
with flammable gases.

Pos: 56 /TD/Allgemeine Hinweise (für alle Anleitungen)/Hinweis - Dieses Produ kt entspricht nicht der ATEX-Richtlinie und darf nicht ..-nicht brennbare Gase @ 2\m od_1184228756893_51.docx @ 19686 @ @ 1

Note
This product does not comply with the ATEX Directive and may not be used in

ignitable atmospheres. The system must not be operated with explosive gases or
mixtures and it must be ensured that explosive gases or mixtures do not form during
the process.

17

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3.2 Requirements for the Furnace Operator

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The set-up instructions and safety regulations must be followed, otherwise the furnace
will be deemed to have been used improperly, effectively cancelling any claims against
Nabertherm GmbH.

This level of safety when operating the furnace can be achieved only if all the necessary
measures have been taken. It depends on the furnace operator's diligence in planning these
measures and controlling how they are carried out.

The Operator must ensure that

 all harmful gases are removed from the workplace, for example by an extraction

system,

 the extraction system is switched on,
 the workplace is properly ventilated,
 the furnace is operated only in a perfect operating condition and, in particular, that the

functions of the safety components are checked regularly.

 the required personal protective equipment is available for and used by the operating,

maintenance, and repair personnel.

 these operating instructions, including the supplier documentation, are kept near the

furnace. These instructions must be available at all times for anyone working with or
on the furnace;

 all the safety and operating instruction signs on the furnace can be read properly.

Damaged or unreadable signs must be replaced immediately,

 furnace personnel are informed regularly about all issues involving occupational

safety and environmental protection and are familiar with all the operating
instructions, especially those involving safety,

 a risk assessment is carried out (in Germany, covered of the Occupational Safety Act)

to determine any other hazards that may result from the working conditions particular
to the furnace's location,

 all other instructions and safety guidelines that have been determined in a risk

assessment for the workplace are compiled in an operation manual (in Germany,
covered of the Ordinance Regulating the Use of Operating Equipment).

 Only sufficiently qualified and authorized personnel may operate, maintain and repair

the system. This personnel must be trained in how to operate the furnace and must
confirm their participation in the training with a personal signature. The training
program must be documented in detail. In case an operator is replaced, additional
training must also take place. The additional training may only be performed by
authorized, trained individuals familiar with the system. The additional training must
be painstakingly documented and participation must be evidenced by the names and
signatures of the participating employees.

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 This furnace is NOT used by certain persons (including children) with restricted

physical, sensorial or mental capabilities or who have insufficient experience
and/or insufficient knowledge, unless they are supervised by a person who is
responsible for their safety or are instructed in how to use the furnace. Children
should be supervised to make sure that they do not play with the furnace.

Pos: 60 /TD/Allgemeine Hinweise (für alle Anleitungen)/Hinweis - In Deutschland ist die allgemeine Unfallverhütungsvorschrif t zu beachten. @ 3\mod_1193667801 739_51.docx @ 26122 @ @ 1
a

Note

In Germany, the general accident protection guidelines must be observed. The accident
prevention regulations applicable in the country where the furnace is installed must be
observed.

18

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3.3 Requirements for the Operating Personnel

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All persons involved in operation, installation, maintenance, or repair of the furnace must
have read and understood the operating instructions. No liability will be accepted for
damage or disruptions to operation resulting from non-compliance with the operating
instructions.

Only adequately qualified and authorized persons may operate, maintain, and repair the
system.
These personnel are informed regularly about all issues involving occupational safety and
environmental protection and are familiar with all the operating instructions, especially
those involving safety,

Only trained personnel may operate the control and safety equipment.

The Operator Should Complete these Details:

 Operator

_______________________________________________________________

 The furnace may only be transported by

_______________________________________________________________

 The furnace may only be installed by

_______________________________________________________________

 The furnace may only be commissioned by

_______________________________________________________________

 Initial instructions may only be given by

_______________________________________________________________

 Malfunctions may only be rectified by

_______________________________________________________________

 The furnace may only be maintained by

_______________________________________________________________

 The furnace may only be cleaned by

_______________________________________________________________

 The furnace may only be serviced by

_______________________________________________________________

 The furnace may only be repaired by

_______________________________________________________________

 The furnace may only be shut down by

_______________________________________________________________

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DANGER

• Danger caused by incorrectly entered cut-off temperature at
the over-temperature limiter/over-temperature limiter with
motor driven reset.

• Risk of fatal injury

• If, as a result of over-temperature from the charge and/or the

operating equipment, a charge is likely to be damaged at this pre­set cut-off temperature of the over-temperature limiter/over­temperature limiter with motor driven reset, or if the charge itself
becomes a source of danger for the furnace or its surroundings,
the cut-off temperature must be reduced on the over-temperature
limiter/over-temperature limiter with motor driven reset to the
maximum permissible value.

19

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3.4 Protective Clothing

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Wear heat-resistant gloves to protect your hands.

Pos: 66 /TD/Sicherheit/Überschrift - Grun dlegende Maßnahmen bei Normalbetrieb @ 0\mod_1167825919827_51.docx @ 5 184 @ 2 @ 1

3.5 Basic Measures During Normal Operation

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Risks during Normal Operation!

Before switching the furnace on, check and ensure that only authorized persons are in the
working area of the furnace and that no one can be injured as a result of operating the
furnace.

Before starting production each time, check and ensure that all the safety equipment works
properly.

Before starting production each time, check the furnace for obvious damage and ensure that
it is operated only in a perfect condition. Report any defects to a supervisor immediately.

Before starting production each time, remove all materials and objects that are not needed
for production from the working area.

At Least once every Day (see also Servicing and Maintenance) Check the Following:

 Check the furnace for obvious external damage,
 Check all hydraulic or pneumatic hoses, make sure that they are not leaking and that

they are connected properly (if applicable),

 Check all gas and oil lines, make sure that they are not leaking and that they are

connected properly (if applicable),

 Check that the fan works properly (if applicable)

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 Check seal(s) for damage

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3.6 Basic Measures in Case of Emergency

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3.6.1 What to Do in an Emergency

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Note

The power plug is to be pulled out to stop the furnace in case of an emergency.
Therefore, the power plug must be accessible at all times when the furnace is operating so
that it can be pulled out quickly in case of an emergency.

20

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Fig. 9: Pull the power plug (similar to picture)

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Risks during Normal Operation!

Switch the furnace off immediately in case of unexpected occurrences in the furnace (e.g.
a lot of smoke or unusual smells). Wait until the furnace has cooled naturally to room
temperature.

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DANGER

• Danger of electric shock.

• Risk of fatal injury.

• Work on electrical

equipment may be carried out only by
qualified electricians
or by trained personnel authorized by
Nabertherm.

• Before starting work, pull out the

power plug

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Warning - Danger of Electric Shock!

Work on the electrical equipment may be done only by qualified, authorized electricians.

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3.7 Basic Measures for Servicing and Maintenance

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Maintenance work must be performed only by authorized persons, observing the
maintenance instructions and the accident prevention regulations. We recommend that
maintenance and repair work be carried out by the service team of Nabertherm GmbH.
Non-compliance may cause injuries, death, or considerable damage to property.

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Switch off the system and make sure it cannot be switched on again inadvertently (lock the
main switch and secure it with a padlock), or pull out the power plug.

Clear an adequate area around the system to facilitate the repair work.
Suspended loads are dangerous. Working beneath a suspended load is prohibited. There is a
risk of fatal injury.
Relieve the pressure on hydraulic and pneumatic equipment before carrying out
maintenance or repair work. (if applicable).

When cleaning furnaces, control cabinets, or electrical equipment housings, never spray
them with water.

When maintenance or repair work has been completed, before recommencing production

21

ensure the following:

 Check that loosened screw connections have been re-tightened,
 Reinstall protective equipment, screens, and filters,
 Remove all material, tools, and other equipment used for the maintenance or repair

work from the working area of the system,

 Remove any liquids that have leaked,
 Check that all safety functions (e.g. EMERGENCY STOP button) work properly,
 Power cables may be replaced only with similar, approved cables,

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3.8 Environmental Regulations

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All statutory duties regarding waste avoidance, proper recycling, and disposal must be
observed when work is carried out on and with the furnace.

Problem materials that are no longer needed, such as lubricants or batteries, must not be
placed in normal waste disposal systems or allowed to enter the sewage system.

During installation, repair, and maintenance work, substances that are hazardous to water,
such as

 lubricating grease and oils
 hydraulic oils
 refrigerants
 solvent-based cleaning fluids must not be allowed to contaminate the soil or enter the

sewage system.

These substances must be stored, transported, collected, and disposed of in suitable
containers.

Note

The operator must ensure that national environmental regulations are observed.

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When it is delivered, this furnace contains no substances that make a hazardous waste
classification necessary. However, residues of process materials may accumulate in the
furnace insulation during operation. These may be hazardous to health and/or the
environment.

 Dismantle the electronic components and dispose of them as electric scrap.
 Remove the insulation and dispose of it as hazardous waste (see “Servicing, Cleaning,

and Maintenance with Ceramic Fiber Material”).

 Dispose of the housing as scrap metal.
 Contact the responsible disposal company to dispose of the materials listed above.

22

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3.9 Explanation of the Symbols and Warnings

Note

In the following operating instructions, specific warnings are given to draw attention to
residual risks that cannot be avoided when the furnace is operating. These residual risks
include dangers for humans/products/ the furnace, and the environment.

The symbols used in the operating instructions are especially intended to draw attention to
safety information.

The symbols used cannot replace the text of the safety information. Therefore, always
read the entire text.

Graphic symbols correspond to ISO 3864. In accordance with the American National
Standard Institute (ANSI) Z535.6 the following warning information and words are used
in this document:

The general hazard symbol, in combination with the words CAUTION, WARNING and
DANGER warns about the risk of serious injury. Observe the following information to
prevent injury or death.

NOTE

Refers to a hazard that could damage or destroy the equipment.

CAUTION

Refers to a hazard with a minor or medium risk of injury.

WARNING

Refers to a hazard that could cause death, serious or irreversible injury.

DANGER

Refers to a hazard that could directly cause death, serious or irreversible injury.

Structure of the Warning: All Warnings are Structured as Follows

WARNING

• Type and source of the danger

• Consequences of non-compliance

• Action to prevent danger

Hazard Symbol
Indicates the risk of injury

Signal Word
Classifies the danger

Graphical Symbols (optional)
According to ISO 3864:

Consequences, measures, and
prohibitions

Reference Texts:

• Type and source of the danger

• Possible consequences of non-

compliance

• Measures/Prohibitions

23

or

DANGER

• Type and source of the danger

• Consequences of non-compliance

• Action to prevent danger

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Information Symbols in the Instructions:

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Note

Below this symbol you will find instructions and particularly useful information.

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Rule - Rule Sign

This symbol draws attention to important rules that must be observed. Rule signs protect
people against injury and show what is to be done in certain situations.

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Rule - Important Information for Operators

This symbol draws the operator's attention to important information and operating
instructions that must be observed.

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Rule - Important Information for Maintenance Personnel

This symbol draws the maintenance personnel's attention to important operating and
maintenance instructions (service) that must be observed.

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Rule - Pull Out the Power Plug

This symbol tells the operator to pull out the power plug.

Graphical Symbols (optional)
According to ISO 3864:

Consequences, measures, and
prohibitions

Reference Texts:

• Type and source of the danger

• Possible consequences of non-compliance

• Measures/prohibitions

Graphical Symbols
(optional) According to ISO
3864:

Instructions or prohibitions

Hazard Symbol
Indicates the risk of injury

Signal Word
Classifies the danger

24

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Rule - Lift only with Several People

This symbol draws the personnel's attention to the fact that this device may only be lifted
and moved to its final destination by several people.

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Warning - Hot Surface, Do Not Touch

This symbol warns the operator that the surface is hot and should not be touched.

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Warning - Danger of Electric Shock

This symbol warns the operator that there is a risk of an electric shock if the following
warnings are not heeded.

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Warning – Risk of Device Toppling Over

This symbol tells the operator that there is a risk of the device toppling over if the
following warnings are not heeded.

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Warning – Suspended Load

This symbol warns the operator of potential dangers of suspended loads. Working below a
suspended load is strictly forbidden. Ignoring this can lead to fatal injury.

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Caution – Danger of Falling

Ignoring this can lead to fatal injury. Danger of falling exists at a height less than 1.00 m
above the ground or another sufficiently broad bearing surface (for example, on elevated
operating positions and workplaces, working platforms, galleries, platforms, footbridges,
flying bridges, ramps and stairways).

Openings and recesses through which people can fall (for example in floors, platforms,
installation openings, hatchways and pits, non-bearing roofs).

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Warning – Danger if Heavy Loads are Lifted

This symbol warns the operator of the potential dangers of lifting heavy loads. Ignoring
this can lead to injury.

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Warning – Risk to the Environment

This symbol warns the operator of the risk to the environment if the following information
is not heeded. The operator must ensure that national environmental regulations are
observed.

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Warning - Fire Danger

This symbol warns operators of the danger of fire if the following information is not
followed.

25

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Warning – Risk of Explosive Substances or Explosive Atmosphere

These symbols warn the operator of explosive substances or an explosive atmosphere

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Prohibited - Important Information for Operators

This symbol warns the operator that water or cleaning products must NOT be poured over
the objects. A high-pressure cleaning device must also not be used.

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Warning Signs on the Furnace:

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Warning - Hot Surface, Danger of Burning – Do Not Touch

You may not always realize that surfaces, such as furnace components, furnace walls,
doors and materials, and even liquids are hot. Do not touch the surface.

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Warning - Danger of Electric Shock!

Warning, dangerous electric voltage

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3.10 General Risks with the Furnace

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CAUTION

• During operation, the exhaust air pipe on the rear side

of the housing becomes hot.

• Danger of burning.

• Do NOT touch the exhaust air pipe during oven operation.

CAUTION

• Interior chamber, charge, exhaust air supports,

window (option).

• Danger of burning.

• Do NOT touch the inside surface of the oven, the charge,

the exhaust air supports during operation.

• Wait until the oven has cooled naturally to room temperature.

DANGER

• Do not insert any objects into the openings on the oven

housing,
the exhaust air or supply ducts, the air circulation motor, or
the
cooling slits of the switchgear or the oven.

• Danger of electric shock.

• Do NOT insert any objects.

26

DANGER

• Danger of electric shock

• Risk of fatal injury

• The oven must NOT become wet during operation or

maintenance

DANGER

• Risk of explosion

• Risk of fatal injury

• Do NOT insert explosive substances into the oven

when it has reached its operating temperature.

• NO explosive dusts or solvent-

air mixtures inside the oven.

• Do NOT operate the oven in areas where there is a risk of

explosion.

• NO explosive dusts or solvent-air mixtures in the surrounding

area.

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Warning – General Hazards

No objects may be placed or set down on the furnace or switchgear. There is a risk of fire or
explosion.

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DANGER

• Danger caused by incorrectly entered cut-off temperature at
the over-temperature limiter/over-temperature limiter with
motor driven reset.

• Risk of fatal injury

• If, as a result of over-temperature from the charge and/or the

operating equipment, a charge is likely to be damaged at this pre­set cut-off temperature of the over-temperature limiter/over­temperature limiter with motor driven reset, or if the charge itself
becomes a source of danger for the furnace or its surroundings,
the cut-off temperature must be reduced on the over-temperature
limiter/over-temperature limiter with motor driven reset to the
maximum permissible value.

27

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DANGER

• Danger from electrocution

• If there is no earth connection, or the

earth connection is poorly connected, the
result may be a deadly electrical shock.

• Do not insert any metallic objects such as

thermocouples, sensors or tools into the
furnace chamber without having previously
ensured that the plant has been correctly
earthed. Entrust the job of making a earth
connection between the object and the
furnace housing to a qualified electrical
technician. Any objects inserted into the
furnace must be inserted only through those
openings intended for this purpose.

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4 Transportation, Installation and Initial Start-Up

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4.1 Delivery

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Check that Everything is Complete

Compare the delivered items with the delivery note and the purchase order documents.
Immediately notify the carrier and Nabertherm GmbH of any missing or damaged parts, as
complaints at a later date cannot be acknowledged.

Danger of Injury

When the furnace is being lifted, parts of the furnace or the furnace itself could topple over,
slip, or fall. Before the furnace is lifted, make sure no one is in the working area. Wear
safety footwear and a hard hat.

Safety Instructions

 Forklifts must be operated only by authorized personnel. The operator bears sole

responsibility for safe operation and the load.

 When the furnace is being lifted, make sure that the ends of the forks or the load do

not catch on neighboring goods. Use a crane to move tall parts, such as control
cabinets.

 Use only lifting equipment with sufficient load-bearing capacity.
 Lifting gear must be attached only to positions that have been designated for this

purpose.

 Attachments, piping, or cable conduits must never be used to affix lifting gear.
 Unpackaged parts should only be lifted with ropes or straps.
 Attach transportation equipment only to positions intended for this purpose.
 Lifting and securing equipment must conform to the provisions contained in accident

prevention regulations.

 Consider the weight of the furnace when choosing lifting and securing equipment.

(see Specifications)

 Stainless steel parts (including mounting elements) must always be kept separate from

unalloyed steel parts.

 Do not remove corrosion protection until immediately prior to assembly.

28

Risks during Normal Operation!

Suspended loads are dangerous. Working beneath a suspended load is prohibited. There is
a risk of fatal injury.

Note

Safety and accident prevention guidelines applicable for forklift trucks must be followed.

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Transportation with a Pallet Truck

Observe the maximum permitted capacity of the pallet truck.

1. Our furnaces are delivered ex works on wooden frames to facilitate unloading.
Transport the furnace in its original packaging and with suitable equipment to
prevent any damage. Remove the packaging only when the furnace is in its final
location. When transporting the furnace, make sure it is secured against sliding,
toppling over, and damage. The furnace should be transported and installed by at
least two persons. Do not store the furnace in damp rooms or outdoors.

2. Push the pallet truck underneath the transportation frame. Make sure that the pallet
truck is completely beneath the frame. Pay attention to neighboring goods.

Fig. 10: Pallet truck is pushed completely beneath the transportation frame

3. Lift the furnace carefully and pay attention to its center of gravity. When the furnace
is being lifted, make sure that the ends of the forks or the load do not catch on
neighboring goods.

4. Make sure that the furnace is balanced safely; if not, attach securing equipment.
Push the furnace carefully, slowly and with the pallet truck at its lowest position. Do
not transport the furnace on inclines.

5. Carefully lower the furnace at its final position. Pay attention to neighboring goods.
Try not to set it down too abruptly.

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CAUTION

• Device may slip or topple over.

• Damage to the device.

• Risk of injury from lifting
heavy loads.

• Transport device only in original
packaging.

• Several people must carry the device.

29

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Symbols:

The symbols for handling packaging are defined in ISO R/780 (International Organization
for Standardization) and in DIN 55 402 (German Institute for Standardization).

Description

Symbol

Explanation

Fragile

This symbol is to be attached to fragile goods.
Goods marked like this are to be handled carefully
and must not be thrown or tied up.

This side up

The freight must be transported, transshipped, and
stored in such a way that the arrows point upward.
The freight must not be rolled, folded, or stored on
edge. However, the package does not have to be
packed on top of other freight.

Keep dry

Products with this symbol must be protected against
high air moisture, hence, they must be stored under
cover. If particularly heavy or bulky packages
cannot be stored in halls or sheds, they must be
covered carefully with a tarpaulin or similar.

Sling here

The symbol shows only where the sling should be
attached, not the method of slinging. If the symbols
are at an equal distance from the middle or center of
gravity of the package, the package hangs straight if
the slings are the same length. If this is not the case,
the sling on one side has to be shortened.

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4.2 Unpacking

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Note

The furnace packaging prevents damage during transportation. Make sure that you
remove all packaging material (also inside the Furnace Chamber). Keep the packaging
and transportation securing equipment in case it is needed for future transportation or
storage.

At least two people are needed to carry/transport the furnace, more for larger furnaces.

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Wear protective

gloves

30

1. Check the transportation packaging for any signs of damage.

2. Remove straps from the transportation packaging.

3. Loosen the screws and remove the wooden frame from the cardboard box (if

applicable)

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4. Carefully lift the cardboard box and remove it from the pallet.

5. Remove the top transportation protection material from the drying oven. Compare

the delivered items with the delivery note and the order documents, see "Delivery".
Remove the protective film and packaging material from the drying oven.

6. To carry the oven, place your hands beneath the oven on the side (near the feet) and
make sure that you have a good grip. Keeping your back straight, lift the drying
oven from the pallet and carefully lower it at the point where it is to be installed.
Have another person remove the bottom transportation material before you lower the

31

oven. Two people are needed to lift drying ovens in series TR 60 – TR 120 from the
pallet, and four are needed for drying ovens in series TR 240 – TR 1050, one at each
foot

7. Remove the transportation securing material at the top and bottom of the door.

8. Use the handle to open the swing door. The removable grids inside the oven are
protected during transportation, remove this protection material. Make sure that you
remove all the packaging material. Keep the packaging and transportation securing
material in case it is needed for future transportation or storage of the oven.

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CAUTION

• Device may slip or topple over.

• Damage to the device.

• Risk of injury from lifting
heavy loads.

• Transport device only in original
packaging.

• Several people must carry the device.

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4.3 Transport Securing Device/Packaging

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Note

No special transportation securing equipment is available for this furnace

The furnace packaging prevents damage during transportation. Make sure that you remove
all packaging material (also inside the Furnace Chamber). All packaging material can be
recycled. The packaging was designed so that no special description is necessary.

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Safety Information

Do not allow children to play with packaging parts. They are at risk of suffocation from
folding boxes and plastic film.

32

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4.4 Constructional and Connection Requirements

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4.4.1 Installation (Furnace Location)

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When setting up the furnace these safety instructions must be followed:

 The furnace must be positioned in a dry room as stated in the safety instructions.
 The supporting surface must be level to permit the furnace to stand upright. The

furnace must be installed on a non-combustible support surface, free of any vibrations
(stone, metal or an equivalent material).

 The load-bearing capacity of the table (model series TR 60 – TR 240) must match the

weight of the furnace plus accessories.

 The floor covering must not be made of flammable material so that this floor covering

does not ignite if hot material falls out of the furnace.

 The furnace must be oriented with the help of a water-level. The leg lengths can be

adjusted using the tilt compensation screws.

 The furnace must be oriented with the help of a water-level. Leg lengths can be

adjusted using the tilt compensation screws (models TR 60 – TR 450). For model TR
1050, which contains transport rollers, the appropriate height adjustment sheets (not
included in the scope of delivery) or equivalent materials must be used. After
orienting the furnace, the brakes on the fron guide rollers must be locked.

TR 60 – TR 450

TR 1050

Fig. 11: Setting up (similar to picture)

Despite good insulation, the outer surfaces of the furnace radiate heat. If necessary, this
heat must be vented (the assistance of a ventilation expert may be necessary). Besides, an
all-around minimum safety clearance (S) of 0.5 m and, in the rear, 1 m, from any
combustible materials must observed. In some cases the distance must be greater in
response to specific local conditions. The side minimum clearance from non-combustible
materials can be as low as 0.2 m.

If the batch emits gases or vapors, adequate ventilation of the installation site must be
provided as well as a suitable exhaust air venting system. A suitable vent for combustion
exhaust must be supplied by the customer.

33

TR 60 – TR 240 table-top models

TR 450 – TR 1050 floor models

Fig. 12: Example: Setting up (similar to picture)

Caution

Permissible ambient temperatures during operations are +18 °C to +40 °C. When room
temperatures are high temperature fluctuations may result.

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DANGER

• Risk of fire, danger to health.

• Risk of fatal injury.

• Adequate ventilation must be ensured at the
installation location to remove exhaust heat and exhaust gases.

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Note

Before starting the furnace for the first time, allow it to acclimatize at its installation
location for 24 hours.

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DANGER

• Danger associated with the use of an automatic extinguishing

system

• Danger to life from electrocution through wetness,

suffocation caused by extinguishing gas, etc.

• If automatic extinguishing systems are in place to fight fires and
protect the building, e.g. sprinkler systems, care must be taken
during their planning and installation that no additional hazards are
created, for example by extinguishing a pilot light, mixing
hardening oil and extinguishing water, shutdown of electrical
equipment, etc.

34

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4.4.2 Ovens May Be Stacked

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Fig. 13: Example: Drying ovens up to TR 240 can be stacked (similar to picture)

Two ovens up to series TR 240 may be stacked. Use anti-slip rubber padding beneath all
the feet on the top oven.

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CAUTION

• Top furnace may slip or topple over.

• Damage to the furnace.

• If stacking furnaces, use anti-slip rubber padding beneath
all four feet of the top furnace.

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4.5 Assembly, Installation, and Connection

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4.5.1 Venting Exhaust Fumes

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We recommend that you connect a pipe to the oven to remove the exhaust gases.
A conventional metal exhaust pipe NW50 to NW80 and a maximum length of 5 meters is

suitable. It must be attached facing upwards and be fixed to the wall or ceiling.
If larger exhaust pipes or piping with waste gas fans are used, install a draft regulator.

Assume a maximum exhaust gas temperature of approx. 300 °C for the piping system.

35

Example: Draft regulator

1 Exhaust pipe / 2 Exhaust fan / 3 Draft regulator

Fig. 14: Example: Installing an exhaust pipe (figure similaire)

Note

The exhaust gases can only be vented if the room is ventilated with a corresponding fresh
air inlet.

Note

The customer is responsible for the masonry and roofing work necessary for venting the
exhaust gases. The size and design of the exhaust system must be defined by a ventilation
engineer. The accident prevention regulations applicable in the country where the oven is
installed must be followed.

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4.5.2 Connecting the Furnace to the Power Supply

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On the building side, the required services must be provided, i.e. the carrying capacity of
the installation surface, provision of power (electricity), etc.

 The furnace must be installed in accordance with its intended use. The power

connection values must correspond to the values on the furnace type plate.

 The power socket must be located close to the furnace and must be easily accessible.

The safety requirements are not met if the furnace is not connected to a socket with
grounding contact.

 On use of an extension cable or a multipoint socket, the maximum electrical rating

must not be exceeded. Do not use the furnace with an extension cable if you are
uncertain whether grounding is guaranteed.

 The power cable must not be damaged. Do not place any objects on the power cable.

Route the cable so that nobody can tread on or stumble over it.

 A damaged power cable must be replaced immediately.
 Ensure that the furnace's connection cable is routed so that it is protected.

36

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 The connection cable must not be installed on the exhaust air duct as high

temperatures can be expected here (see “Venting Exhaust Fumes”).

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Note

Before connecting the power, make sure that the power switch is set to "Off" or "0".

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Fig. 15: Furnace up to 3600 kW (the power cable is supplied) (similar to picture)

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1. Plug the supplied connection cable with snap-in coupling into the rear wall of the
furnace.

2. Then connect the power cable to the power supply. Use only a grounded socket.

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Fig. 16: Furnace from 3.600 W (CEE plug) (similar to picture)

Pos: 140 /TD/Transport_Montage_Inbetrie bnahme/Erstinbetriebnahme/Anschluss a n das Elektronetz - Schließen Sie das N etzkabel am Netzanschluss an. - Kamm eröfen @ 102\mod_1439796253996_ 51.docx @ 406260 @ @ 1

1. Connect the power cable to the power supply. Use only a grounded socket.

Check the ground resistance (acc. to VDE 0100); see also accident prevention regulations.
Electrical systems and equipment according to DGUV V3.

37

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Note

The national regulations of the respective country of operation apply.

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Warning - Danger of Electric Shock!

Work on the electrical equipment may be done only by qualified, authorized electricians.

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CAUTION

• Danger from incorrect voltage

• Damage to the device.

• Check voltage before connecting and
starting the furnace.

• Compare the voltage with the details
on the type plate.

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DANGER

• Risk of fire, danger to health.

• Risk of fatal injury.

• Adequate ventilation must be ensured at the
installation location to remove exhaust heat and exhaust gases.

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4.6 Initial Start-Up

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The furnace may be put into operation only by qualified persons and in compliance with the
safety instructions.

Read the section on "Safety". When the furnace is put into operation, the following safety
information must also be observed to prevent serious injury, damage to the furnace, and
damage to other property.

Make sure that the instructions and information in the controller instructions are observed
and followed.

The furnace may be used only for its intended purpose.
Ensure that only authorized persons remain in the working area of the furnace and that no

other persons are put at risk when the furnace is put into operation.
Before starting the furnace for the first time, make sure that all tools, foreign parts, and

transportation securing equipment have been removed.
Activate all safety equipment (power switch, emergency stop button if applicable) before

putting the furnace into operation.
Incorrectly wired connections may destroy electric/electronic components.
Observe the special protective measures (e.g. grounding, …) for components that are at

risk.
Faulty connections can cause the furnace to start unexpectedly.
Before you switch on the furnace, make sure that you know what to do in case of faults or

emergencies.
Before starting the furnace for the first time, check the electrical connections and control

displays.

38

Before placing materials in the furnace, check whether they could harm or destroy the
insulation or the heating elements. Materials that could damage the insulation include:
alkalis, alkaline earths, metal vapors, metal oxides, chlorine compounds, phosphorous
compounds, and halogens.

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Note

Before starting the furnace for the first time, allow it to acclimatize at its installation
location for 24 hours.

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4.7 Recommendations for Heating Up the Furnace for the First Time

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The oven should be heated to 100°C below max. temperature in approx. 2 hours. Hold
this temperature for about 1 hour. This process should be carried out during
commissioning and after heating elements have been replaced. While the oven is heating
up, you may notice a smell; this is due to binder being emitted from the insulation
material. It is advisable to ventilate the room in which the oven is located well during the
first heating phase.

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5 Operation

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5.1 Controller

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B410/C450/P480

Fig. 17: Control field B410/C450/P480 (similar to picture)

No.

Description

1

Display

2

Control keys for "Start/Hold/Stop", "Menu" selection, "Back" function and information menu selection

3

Jog dial

4

USB interface for a USB stick

5

Over-temperature limiter with manual reset (optional)

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Note

See the separate operating instructions for a description of how to enter temperatures and
times and to “start” the furnace.

39

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6 Operation, Display and Switch Elements (depending on design)

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6.1 Turning on the Controller/Furnace

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Switching on the Controller

Steps

Display

Comments

Turn on the power
switch

/

Turn on the power switch by setting it to
"I"

(power switch type differs depending on
features/furnace model)

The overview screen
appears.

After a couple of
seconds, the temperature
is displayed.

If the temperature is displayed at the
controller, the controller is ready to
operate.

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6.2 Turning off the Controller/Furnace

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Turn off the controller

Steps

Display

Comments

Turn off the power
switch

/

Turn off the power switch by setting it to
"O"

(power switch type differs depending on
features/furnace model)

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All the necessary settings for perfect functions have already been made at the factory.

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Note

See additional operating instructions for description and function

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6.3 Operating Controller R7

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Fig. 18: Controller R7 (similar to picture)

40

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Two temperatures are shown in the display.
At the top is the actual value (1).
Beneath this is the specified target temperature (2).

249 °C
300

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Setting the Setpoint:

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Button

Description

Display

From the main display: Use to increase or decrease the setpoint.
The device applies the new setpoint as soon as the button is released. A brief
flash indicates that the value is now current.

300 °C

249 °C

Note

When delivered, this controller is set as a fixed setpoint controller. But for
several processes it is important that the temperature is raised slowly for the
first firing. A ramp function can be set on Controller R 7 for this purpose.

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Setting a Temperature Ramp:

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Button

Description

Display

Press until "SP.RAT" appears in the display.

OFF
SP.RAT

Use to set the required heating ramp in °C/min (Example 2
°C/min)

Increase the value with (OFF … 1,9; 2)
Decrease the value with (2 … 0,1; OFF)

Wait 2 seconds until the setting is applied automatically (display flashes 1x).

2

OFF
SP.RAT

Press to go to the main display.

249 °C
300

Use to change a setpoint to the required value. The set rate is used
only when the setpoint has been changed. The rate can be used for heating or
cooling. The starting temperature of the rate is always the actual
temperature. If the target temperature is set below the actual temperature, it
is a cooling rate. When a rate has started, "RUN" is shown in the display.

Increase the value with
Decrease the value with

249 °C
300

RUN

Note

If the ramp mode is no longer needed, set the parameter "SP.RAT" to OFF
again.

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Automatic Adjustment of the Control Parameters to the Process Characteristic:

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Button

Description

Display

Press for >5 seconds until "Lev1" appears in the display.

LEv1
GOTO

Press 1x until "LEv2" appears in the display and wait for 2 seconds ­the display changes to "0"

LEv2

0

Press 2x until code "2" is displayed and wait 2 seconds.

(The display returns to the main display)

2

550 °C

Press until "A.TUNE" appears in the display.

OFF
A.TUNE

41

Button

Description

Display

Use to set OFF or ON.
Change with (ON)
Change with (OFF)

Wait 2 seconds until the setting is applied automatically (display flashes 1x).

ON

OFF
A.TUNE

Press until you return to the main display.

249 °C
300

Use to set the required temperature in °C (Example 100 °C).
(During optimization, TUNE flashes in the display). When optimization is

finished, the determined control parameters are applied automatically.

100 °C

0 °C

Press for >5 seconds until "Lev2" appears in the display.

LEv2
GOTO

Press 1x until "LEv1" appears in the display and wait 2 seconds.
Input finished.

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Manual Adjustment of the Control Parameters to the Process Characteristic:

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Button

Description

Display

Press for >5 seconds until "Lev1" appears in the display.

LEv1
GOTO

Press 1x until "LEv2" appears in the display and wait for 2 seconds ­the display changes to "0"

LEv2

0

Press 2x until code "2" is displayed and wait 2 seconds.

(The display returns to the main display)

2

550 °C

Press until "PB", "TI", "TD" appear in the display
PB: Proportional Band
TI: Integral Time
TD: Differential Time

5

PB

Set the required parameters with (Example 10)
Increase the value with (OFF/1 … 9; 10)

Decrease the value with (10… 2; 1/OFF)

Wait 2 seconds until the setting is applied automatically (display flashes 1x).

10

5
PB

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Caution

Continuous operation at maximum temperature can lead to increased wear of the heating
elements and the insulation material. We recommend operating at approx. 50 °C below
the maximum temperature.

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Note

We recommend that you do not switch off the furnace as soon as the program has ended
but to wait until it naturally cools down in forced-air circulation.

42

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6.4 Operation of Over-Temperature Limiter

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The over-temperature limiter monitors the temperature in the oven chamber and protects
the oven. Over-temperature limiters separate the heating element from the power supply as
soon as the temperature in the oven chamber exceeds the maximum oven temperature by
approx. 10 %. After the oven has cooled naturally to its operating temperature, the over­temperature limiter (located on the back of the oven) can be reset, which reconnects the
heating element to the power supply.

Fig. 19: Over-temperature limiter (similar to picture)

 The over-temperature limiter is located on the back side of the oven and has a

corresponding sticker Reset.

 Before resetting, remove the cap by hand or with a flat blade screwdriver.
 Activate the green reset button with a suitable tool (e.g. a ballpoint pen).

The over-temperature limiter is generally triggered by a malfunction in the oven. This
malfunction must be rectified before the reset button is activated. It is recommended that
you contact the Nabertherm Service Department (see "Nabertherm Service").

You cannot see whether the over-temperature limiter has been triggered. You notice it
audibly with a "click" when the green reset button is pressed.

Note

The over-temperature limiter does not apply if you choose the mechanical over­temperature limiter with manual reset.

43

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6.5 Over-temperature Limiter with Manual Reset

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6.5.1 Mechanical Over-Temperature Limiter with Manual Reset

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Figure

Description

The over-temperature limiter with manual reset monitors the temperature in the oven
chamber. If the temperature in the oven chamber exceeds the trigger temperature, the
heating is switched off to protect the oven and the load. This can be seen on the over­temperature limiter when an "Alarm" lamp illuminates.

Adjust the trigger temperature:

Switch on the oven (see "Operating the Controller").
Turn the temperature selection knob to the right as far as it goes.

Example:
The temperature in the oven chamber is to be 220°C.
The trigger temperature for the over-temperature limiter (alarm value) to protect the oven
or the load should be 230°C.

Enter the required trigger temperature of 230°C on the controller. Switch on the heating.
(see "Operating the Controller").

Note:
Premature triggering of the over-temperature limiter can be avoided if the difference
between the temperature in the oven chamber and the trigger temperature is not below
10°C.

When the required trigger temperature of 230°C is reached, hold this for at least 30
minutes (dwell time).

After the dwell time, turn the knob on the over-temperature limiter very slowly to the left
until the lamp on the over-temperature limiter illuminates. The trigger

temperature (alarm value) of 230°C is now set on the over-temperature limiter and the
heating is switched off to protect the oven or the load.

Enter the oven chamber temperature (220°C) on the controller (reset the trigger
temperature to the temperature in the oven chamber).

Wait until the oven has cooled naturally to room temperature. For further operation you
must press the button to release the heating. When you have pressed the
button, the lamp extinguishes.

Entry finished.

The operator must ensure that the trigger temperature (alarm value) on the over­temperature limiter CANNOT be adjusted. Adjusting the trigger temperature can damage
the oven or the load. Nabertherm does not accept liability for lost profits, interruption to
operations, or damage to the oven or the load.

Reset

Alarm

P

K1 K2

Reset

Alarm

220 °C

230 °C

Alarm

AlarmAlarm

Reset

Alarm

P

K1 K2

Alarm

Reset

Reset

Reset

AlarmAlarm

44

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6.5.2 Electrical Over-Temperature Limiter with Manual Reset

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Fig. 20: Over-temperature limiter with manual reset 2132i (similar to picture)

Key

Description

Display

The over-temperature limiter with manual reset monitors the
temperature in the furnace chamber. The display shows the last trigger
temperature that was set. If the temperature in the furnace chamber
exceeds the set trigger temperature, the heating is switched off to
protect the furnace and the load. "FSH" alarm flashes on the over­temperature limiter.

260 °C

FSH

When the temperature in the furnace chamber falls below the value set
on the over-temperature limiter , the following buttons have to be

pressed to release the heating so that the furnace can continue to
operate:

Release heating:

Press and simultaneously. The alarm on the over­temperature limiter is reset and this releases the heating.

Adjust the trigger temperature:

Set the required trigger temperature with the button
(Example 270 °C)

Increase the value with (260 … 269, 270)
Reduce the value with (270 … 261, 260)

To change the value quickly: hold the button depressed for
longer.

Wait 2 seconds until the new trigger temperature is integrated automatically (display
flashes 1x).

Note:

Premature triggering of the over-temperature limiter can be avoided if the difference
between the adjustable temperature in the furnace chamber and the trigger temperature is
not below 10 °C.

270

260

The display jumps back to the start screen showing the trigger
temperature. The current trigger temperature is displayed.

270 °C

Entry finished.

For more information about operation, see the separate instructions for the
Eurotherm 2132i

2132i

260 °C

270 °C

45

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DANGER

• Danger caused by incorrectly entered cut-off temperature at
the over-temperature limiter/over-temperature limiter with
motor driven reset.

• Risk of fatal injury

• If, as a result of over-temperature from the charge and/or the

operating equipment, a charge is likely to be damaged at this pre­set cut-off temperature of the over-temperature limiter/over­temperature limiter with motor driven reset, or if the charge itself
becomes a source of danger for the furnace or its surroundings,
the cut-off temperature must be reduced on the over-temperature
limiter/over-temperature limiter with motor driven reset to the
maximum permissible value.

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6.6 Controlling the Exhaust Air

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Series TR … ovens have an infinitely adjustable butterfly valve on the rear of the oven. The

exhaust air can be controlled by a knob on the front side of the oven This is used to conduct
process-related exhaust gases out of the oven via this valve.

Valve
closed

Valve

open

Fig. 21: Infinite adjustment of the exhaust air (similar to picture)

Note

Operating the oven with the valve open can change the temperature conditions in the oven
chamber. If the batch is sensitive to temperature fluctuations, it may be advisable to run a
test for temperature uniformity to optimize the process.

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6.7 Controlling the Air Circulation (Accessory)

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A manual, infinitely adjustable speed control for the air circulation motor is available as an
accessory for ovens in the TR … series. The speed of the air circulation motor can be
controlled by a knob on the front side of the oven This is used to optimize air circulation for
the specific process.

46

Low

air circulation

High

air circulation

Fig. 22: Infinite adjustment of the air circulation (similar to picture)

TR 60 – TR 240

TR 450 - 1050

Fig. 23: Principle of air flow (similar to picture)

Note

Operating the oven with adjustable air circulation can change the temperature conditions
in the oven chamber. If the batch is sensitive to temperature fluctuations, it may be
advisable to run a test for temperature uniformity to optimize the process.

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6.8 Adjusting the Baffles

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The individual baffles (located inside the furnace system) are set or positioned at the
factory (empty useful space) to optimize the temperature uniformity. Temperature
uniformity is influence by a large number of factors including the material used, size,
quantity, and position of the charge.

Depending on the process and the charge, the baffles can be re-positioned to provide
optimum temperature uniformity. We recommend that you document the baffle positions
set at the factory for your furnace model (such as noting the step setting of the baffles).

In order to adjust the individual baffles the screws on the baffles must be loosened a little
with the help of a suitable screwdriver. Number, position and quantity of baffles may differ
from one furnace model to another. The baffles can now be re-adjusted for optimum
temperature uniformity. Inspect carefully both the baffles and the insulation for possible

47

signs of damage. Your supervisor or Nabertherm Service must be informed immediately of
any damages.

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Loosen the screws (1) wires to adjust the baffles

Fig. 24: Adjusting the individual baffles (similar to picture)

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6.9 Opening and Closing the Door

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Furnace door bolted

Furnace door unbolted (door can be opened)

Fig. 25: Bolting/unbolting the furnace door (similar to picture)

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Opening the Door

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The swinging door can be easily opened by pulling. We recommend opening the swinging
door completely to enable easier charging.

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Closing the Door

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Close the furnace door carefully (do not slam). Slamming the swinging door shut may
result in harmful shocks. Fragile material must be treated carefully.

48

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Before the first start-up, when you close or lock the door, make sure that the furnace door is
uniformly closed all around the edge (the seal of the furnace door is pressed against the
furnace collar when it is locked. Make sure that the furnace door opens and closes easily
(the door must not be forced shut).

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When the furnace door is not correctly closed result is increased wear of the heating eleents
and a high degree of discoloring of the furnace housing. If the furnace chamber temperature
is not reached (due to an incorrectly closed door) no liability shall be accepted in case of
damage to the furnace or the charge.

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6.10 Adjusting the Removable Grids

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The removable grids can be inserted at various heights. Several removable grids allow
charging on several levels (see "Accessories and Spare Parts").

Fig. 26: Pull the removable grids out of the rails and place on a soft clean surface (similar
to picture)

Fig. 27: Tilt the removable rails upwards and pull them out of the side walls (similar to
picture)

Fig. 28: Push the rails into the rectangular holes at an angle (similar to picture)

49

Fig. 29: Fold the rail down and slide the grids that you removed previously on again
carefully as far as it goes (similar to picture)

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7 Servicing, Cleaning, and Maintenance

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Risks during Normal Operation!

Cleaning, lubrication, and maintenance work must be performed by authorized personnel
following the maintenance instructions and the accident prevention regulations. We
recommend that maintenance and repair work is carried out by the service team of
Nabertherm GmbH. Non-compliance may cause injuries, death, or considerable damage
to property.

Warning - Danger of Electric Shock!

Work on the electrical equipment may be done only by qualified, authorized electricians.

During maintenance work, the oven and/or switchgear must be disconnected from the
power supply and safeguards must be taken to ensure that they cannot be switched on
again inadvertently. For safety reasons, pull out the power plug.

Operators may only rectify malfunction that are obviously due to operating errors.
Wait until the oven and the connected parts have cooled to room temperature.
Check the oven for obvious damage regularly. Also, clean the inside of the oven as required

(e.g. with a vacuum cleaner).
While work is being carried out on the oven, the oven and the room in which it is installed

should be ventilated with fresh air.
Protective equipment that was removed during maintenance work must be replaced when

the work is finished.
Warning about suspended loads at the workplace (e.g. cranes). Working beneath a

suspended load (e.g. the oven or switchgear) is prohibited.
Safety switches and limit switches must be checked regularly (BGV A3) or according to the

corresponding national regulations in the country where the oven is installed.
To ensure perfect temperature control of the oven, the thermocouple should be checked for

damage before every process.
Tighten the element holder screws (see "Replacing the Heating Element") if necessary.

Before doing this, disconnect the oven and/or the switchgear from the power supply (pull
out the power plug). Observe BGV A3 or the corresponding national regulations in the
country where the oven is installed.

50

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Caution – Danger of Falling

Ignoring this can lead to fatal injury. Danger of falling exists at a height less than 1.00 m
above the ground or another sufficiently broad bearing surface (for example, on elevated
operating positions and workplaces, working platforms, galleries, platforms, footbridges,
flying bridges, ramps and stairways).

Openings and recesses through which people can fall (for example in floors, platforms,
installation openings, hatchways and pits, non-bearing roofs).

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7.1 Furnace Insulation

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Repairs to the insulation or the replacement of components in the heating chamber may
only be performed by persons who are trained about possible hazards and protective
measures and can apply this knowledge without supervision.

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During the work on the insulation or the replacement of components in the
furnace chamber, the following points must be observed:

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When repairs are made or demolition work is performed, silicon dust may be released.
Depending heat-treated materials contained in the furnace, further contaminants may be
contained in the insulation. To exclude possible health risks, dust concentrations must be
kept to a minimum during any work performed at or near the insulation. In many
countries there are specific occupational safety limits. You can acquire more relevant
information by investigating the relevant legal specifications in your country.

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Dust concentrations should be kept as low as possible. Dust must be removed using a
suction device or a vacuum cleaner with a high-performance filter (HEPA – category H).
Strong air currents such as drafts, for example, must be prevented. Pressurized air or brush
must not be used for cleaning. Piles of dust must be sprinkled.

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During work on the insulation a respirator mask with an FFP2 filter or an FFP3 filter must
be used. The work clothing must be loose and cover the body completely. Gloves and
goggles must be worn. Soiled clothing should be cleaned before it is removed with a
vacuum cleaner equipped with a HEPA filter.

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Contact with skin and eyes should be avoided. The impact of fibers on skin or eyes can lead
to mechanical irritation which, in turn, causes reddening and itchiness. After completing the
work, or after direct contact, the skin must be washed with soap and water. If there is
contact with the eyes, they must be washed out carefully for several minutes. If necessary,
an eye doctor should be consulted.

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Smoking, eating and drinking at the workplace is prohibited.

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In Germany, during work involving insulation, the technical rules for hazardous substances
must be applied. In particular: TRGS 500, TRGS 521, TRGS 558, TRGS 559, TRGS 900;

http://www.baua.de (German).

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Additional information regarding how to handle fibrous materials can be found at

http://www.ecfia.eu (English).

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When the materials are discarded, national and regional guidelines must be observed. The
possible presence of hazardous contaminants generated by the furnace process must be
taken into account.

51

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Note

Data sheets and safety data sheets can be requested from Nabertherm GmbH as required.

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7.2 Shutting Down the Furnace for Servicing, Cleaning, and Maintenance

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Risks during Normal Operation!

Cleaning, lubrication, and maintenance work must be performed by authorized personnel
following the maintenance instructions and the accident prevention regulations. We
recommend that maintenance and repair work is carried out by the service team of
Nabertherm GmbH. Non-compliance may cause injuries, death, or considerable damage
to property.

Wait until the Furnace and the Connected Parts have Cooled to Room
Temperature.

 The furnace must be completely empty.
 Inform operating personnel, name a supervisor.
 Switch off the main switch and pull out the power plug.
 Attach a warning sign to the furnace (example: Caution! Maintenance Work)
 Clear an adequate area around the furnace to facilitate the repair work.
 Make sure that the furnace is voltage free.
 Ground and short circuit the working area.
 Cover neighboring live parts.

Risks during Normal Operation!

Do not touch any objects without first checking how hot they are.

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Warning – Danger of Electric Shock

Work on the electrical equipment may be done only by qualified, authorized electricians.
During work it must be ensured that the furnace and the switching equipment cannot be
activated by mistake (pull out the power plug) and that all moving parts in the furnace
are secured. Observe DGUV V3 or the corresponding national regulations in the country
where the furnace is installed.

Wait until the furnace and the connected parts have cooled to room temperature.

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Caution – Danger of Falling

Ignoring this can lead to fatal injury. Danger of falling exists at a height less than 1.00 m
above the ground or another sufficiently broad bearing surface (for example, on elevated
operating positions and workplaces, working platforms, galleries, platforms, footbridges,
flying bridges, ramps and stairways).

Openings and recesses through which people can fall (for example in floors, platforms,
installation openings, hatchways and pits, non-bearing roofs).

52

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7.3 Regular Maintenance of the Furnace

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Item/
Maintenance Point

Measure

Maintenance Interval

Operator

Expert
Daily

Weekly

Monthly

Quarterly

Annually

Personnel

Safety inspection in
conformance with
DGUV V3 or the
corresponding
national regulations

Compliant with
regulation

Compliant with regulation

x

Air circulation motor

Function check.
Maintenance acc. to
manufacturer's
instructions.

●

x

Safety and
limit switch
(if applicable)

Function check

● x

Oven chamber, vent
holes
and vent pipes

Clean and
check for damage,
vacuum out
carefully

● x

Door seal

Visual inspection

●

x

Door seal

Clean/replace

■ x

Heating elements

Visual inspection

●

x

Incoming air filter
(option)

Clean/replace

x

Check for uniform
power consumption
of the heating system

Function check

●

x

Thermocouple

Visual inspection of
display

● x

Check set value

Check according to
work schedules

●

x

Settings of the
over-temperature limit
controller with manual
reset

Whenever the heat
treatment
program is
changed

●

x

Door closes tightly

Visual inspection

●

x

Symbols:

■ = clean ● = check, replace x = Performed by

Fig. 30: Maintenance table

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Warning - Danger of Electric Shock!

Work on the electrical equipment may be done only by qualified, authorized electricians.

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Notice

Maintenance work must be performed only by authorized persons, observing the
maintenance instructions and the accident prevention regulations. We recommend that
maintenance and repair work be carried out by the service team of Nabertherm GmbH.

53

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Note

If used, over-temperature limiters with automatic reset and over-temperature limiters (see

“Overview of the Complete Furnace”) must be checked regularly to ensure that they

function as intended. To check whether the over-temperature limiters with automatic reset
and over-temperature limiters respond, start the furnace and set the required setpoint on
the temperature control unit below the setpoint of the controller. For more information,
see the operating instructions for over-temperature limiters with automatic reset and over­temperature limiters.

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7.4 Operating and Auxiliary Materials

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7.5 Cleaning Products

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Carry out the procedure to switch off the oven (see "Operation"). Then pull the power
plug out of the socket. Allow the oven to cool naturally.

Pay attention to the labeling and information on the cleaning product packaging.
Wipe the surface with a damp, lint-free cloth. You may also use the following cleaning

products.

Component and
position

Cleaning product

Outer surfaces

Normal cleaning product without acid or halogenides.
Alcohol solutions.

Inside

Normal cleaning product without acid or halogenides.
Alcohol solutions.

Removable grids

Normal cleaning product without acid or halogenides.
Alcohol solutions.

Door seal

Normal cleaning product without acid or halogenides.

Instrument panel

Normal cleaning product without acid or halogenides.

Fig. 31: Suggested cleaning products
Clean quickly to protect the surfaces.

When you have finished cleaning, completely remove the cleaning product from the
surfaces with a moist, lint-free cloth.
When you have finished cleaning, check all connections for leaks, check the door seal,
check for loose connections, scuffed areas, and damage.

Read the section on "Environmental Protection Regulations"

Note

The oven, the oven chamber, and connected parts may NOT be cleaned with a high­pressure cleaning device.

54

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7.6 Cleaning Inside the Oven

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Warning – Danger of Electric Shock

Work on the electrical equipment may be done only by qualified, authorized electricians.
During work it must be ensured that the furnace and the switching equipment cannot be
activated by mistake (pull out the power plug) and that all moving parts in the furnace
are secured. Observe DGUV V3 or the corresponding national regulations in the country
where the furnace is installed.

Wait until the furnace and the connected parts have cooled to room temperature.

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Warning – General Hazards!

If installed improperly, functioning and safety of the system can no longer be guaranteed.
The connection must be properly installed and put into operation by qualified personnel.

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Use an appropriate tool to remove the screws all around the cover and keep them in a
secure place for later use. The cover must be lowered onto a soft material (such as foam
rubber). The number and position of the screws may differ from one furnace model to the
next. The furnace may look different than the picture depending on the furnace model and
additional equipment.

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Undo the screws on the rear of the oven with a suitable tool and keep them in a safe place
for future use.

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Fig. 32: Undoing the screws from the top (similar to picture)

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Pull the top towards you until you feel it catching.

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Fig. 33: Pulling the top (similar to picture)

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Lift the top and place it beside the oven. Place some soft padding under the top to protect it.

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If present, pay attention to the protective ground cable from the panel to the terminal; if
necessary, dismantle the cable from the terminal.

55

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Fig. 34: Lifting and removing the top (similar to picture)

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Completely empty the oven. Remove the grids and trays (see "Adjusting the Removable
Grids").

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Fig. 35: Completely empty the oven (similar to picture).

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To remove the metal sheets on the side, the screws on the side walls must be completely
unscrewed. This requires a 2.5 mm Allen key.

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Fig. 36: Unscrewing the screws on the side walls (similar to picture)

56

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Turn the side walls inwards. Carefully pull the side walls towards the front of the oven and
remove them.

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Fig. 37: Removing the side walls from the oven (similar to picture)

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Undo the screws on the inside back wall with a suitable tool. The number and position of
the screws may differ depending on the oven model. This requires a 4 mm Allen key. Keep
the screws to reuse them later.

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Fig. 38: Undoing the screws on the inside back wall (similar to picture)

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To remove the back wall, the thermocouple must be dismantled (see “Replacing a
Thermocouple”) and also the inside lighting if installed. Undo the glass shield and the lamp

(if installed) by turning them in an anticlockwise direction and put them in a safe place.

57

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Fig. 39: Dismantling the thermocouple and inside lighting (similar to picture)

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Carefully turn the back wall (1) while carefully removing it through the front of the oven
(2).

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Fig. 40: Removing the back wall carefully (similar to picture)

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Undo the hex nut (wrench size 13) from the fan wheel in a clockwise direction with suitable
tools, holding the wheel with one hand.

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Fig. 41: Dismantling the fan wheel (similar to picture)

58

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Thoroughly clean the inside of the oven and the dismantled parts. Do not pour water or
cleaning product over the inside or outside surfaces. See "Cleaning Products".

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Fig. 42: Cleaning the inside of the oven and the components thoroughly (similar to picture)

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Note

Assemble the loosened parts in the reverse sequence.

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Note

Make sure that all screwed and plugged connections are in working order.

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Commissioning

Insert the mains power connector (see chapter "Connection to the Mains Electricity"), then
switch on the power switch and check the function of the furnace (see chapter "Operation").

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DANGER

• Danger of electric shock.

• Risk of fatal injury

• Before cleaning, pull out the power

plug.

• Do NOT pour water or cleaning

products over the inside or outside
surfaces

• Allow furnace to dry completely before

operating it again

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8 Malfunctions

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Work on the electrical system may be done only by qualified, authorized electricians.
Operators may only rectify malfunctions that are obviously due to operating errors.

Call your local electrician for malfunctions that you cannot localize.
If you have any questions, problems, or requirements, contact Nabertherm GmbH. By mail,

phone, or e-mail -> See "Nabertherm Service".
Phone advice is free and non-binding for our customers – all you pay is the phone costs.

59

In case of mechanical damage, send an email containing the above information and a digital
photo of the damaged part and a photo of the complete furnace to the following address:

-> see "Nabertherm Service".
If a malfunction cannot be rectified with the described solutions, contact our service hotline

directly.
Have the following information at hand when you phone. This makes it easier for our

customer service to answer your questions.

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8.1 Error Messages of the Controller

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ID+
Sub-ID

Text

Logic

Remedy

Communication error

01-01

Bus zone

Communication connection to a
control module disrupted

Check that the control module is firmly attached
LEDs on the control modules red?
Check the cable between the operating unit and

the control module.
Plug of the connection cable not plugged

correctly into the operating unit.

01-02

Bus
communication
module

Communication connection to
the communication module
(Ethernet/USB) disrupted

Check that the communication module is firmly
attached

Check the cable between the operating unit and
the communication module.

Sensor error

02-01

TC open

Check thermocouple, thermocouple terminals and
cable

Check contacts of the thermocouple cable in plug
X1 on the control module (contacts 1+2)

02-02

Outside TC
measurement
range

Check set thermocouple type
Check poles of thermocouple connection

02-03

Compare point
error

Control module defective

02-04

Compare point
too hot

Temperature in the switchgear too high (approx.
70 °C)

Control module defective

02-05

Compare point
too cold

Temperature in the switchgear too low (approx. ­10 °C)

02-06

Encoder separated

Error at the 4-20 mA input of
the controller (<2 mA)

Check 4-20 mA sensor
Check the connection cable to the sensor

02-07

Sensor element
defective

PT100 or PT1000 sensor
defective

Check PT sensor
Check connection cable to the sensor (cable

break/short circuit)

System error

60

ID+
Sub-ID

Text

Logic

Remedy

03-01

System memory

Error after firmware updates1)
Defective operating unit1)

03-02

ADC error

Communication between AD
converter and controller
disrupted

Replace control module1)

03-03

File system
defective

Communication between
display and memory chip
disrupted

Replace operating unit

03-04

System
monitoring

Program execution on the
operating unit defective
(Watchdog)

Replace operating unit
USB flash drive removed too soon or defective
Switch controller off and on again

03-05

Zone system
monitoring

Program execution on a control
module defective (Watchdog)

Replace control module1)
Switch controller off and on1)

03-06

Self-test error

Contact Nabertherm Service1)

Monitoring

04-01

No heating power

No temperature increase in the
ramps when heating output <>
100 % for 12 minutes and when
the temperature setpoint is
higher than the current furnace
temperature

Acknowledge the error (if necessary disconnect
from the power supply) and check safety
contactor, door switch, heating controls and
controller.

Lower D value of the control parameters.

04-02

Excess
temperature

The temperature of the control
zone exceeds the max. program
setpoint or the maximum
furnace temperature by
50 Kelvin (from 200 °C)

The equation for the switch off
threshold is:

Maximum program setpoint +
zone offset of the master zone +
charge control offset [Max] (if
charge control active) + excess
temperature switch-off
threshold (P0268, e.g. 50 K)

Check solid state relay
Check thermocouple
Check controller

A program was started at a
furnace temperature higher than
the maximum setpoint in the
program

Do not start the program until the furnace
temperature is lower. If this is not possible, insert
a hold time as a start segment and then a ramp
with the desired temperature (STEP=0 minutes
duration for both segments)

Example:
700 °C -> 700 °C, Time: 00:00
700 °C -> 300 °C, Time: 00:00
The normal program begins here
From Version 1.14, the actual temperature is

considered at the start.

61

ID+

Sub-ID

Text

Logic

Remedy

04-03

Power failure

The set limit for restarting the
furnace was exceeded

If possible, use an uninterruptible power supply

04-04

Alarm

A configured alarm was
triggered

04-05

Self optimization
failed

The determined values are
implausible

Do not carry out self optimization at the lower
temperature range of the furnace working range

Battery weak

Time is not shown correctly. A
power failure may not have
been handled properly

Export all parameters to a USB flash drive
Replace the battery (see “Specifications”)

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Error messages can be reset by pressing twice the jog dial . If there is another error
message, contact Nabertherm Service. Recirculation motors (if included) also remain
switched on in case of an error until the temperature falls below the set cut-off temperature.

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8.2 Warnings of the Controller

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Warnings are not displayed in the error archive. They are only displayed on the display and
in the file of the parameter export. Warning do not generally lead to a program crash.

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No.

Text

Logic

Remedy

00

Gradient
monitoring

The limit value of the
configured gradient monitoring
was exceeded

For troubleshooting, refer to “Gradient
Monitoring”

Gradient set too low

01

No control
parameters

No “P” value was entered for

the PID parameters

Enter at least one “P” value in the control
parameters. It must not be “0”

02

Charge
thermocouple
defective

No charge thermocouple was
determined with the current
program and activated charge
control

Plug in a charge thermocouple
Disable charge control in the program
Check the charge thermocouple and its cable for

damage

03

Cooling
thermocouple
defective

The cooling thermocouple is not
plugged in or is defective

Plug in a cooling thermocouple
Check the cooling thermocouple and its cable for

damage
If there is a malfunction in the cooling

thermocouple during active controlled cooling,
the system switches over to the thermocouple of
the master zone.

04

Documentation
thermocouple
defective

Either no documentation
thermocouple or a defective one
was determined.

Plug in a documentation thermocouple
Check the documentation thermocouple and its

cable for damage

05

Power failure

A power failure was
determined.

There was no program interrupt

None

62

No.

Text

Logic

Remedy

06

Alarm 1 - Band

The configured band alarm 1
was triggered

Optimize the control parameters
Alarm set to narrowly

07

Alarm 1 - Min

The configured min. alarm 1
was triggered

Optimize the control parameters
Alarm set to narrowly

08

Alarm 1 - Max

The configured max. alarm 1
was triggered

Optimize the control parameters
Alarm set to narrowly

09

Alarm 2 - Band

The configured band alarm 2
was triggered

Optimize the control parameters
Alarm set to narrowly

10

Alarm 2 - Min

The configured min. alarm 2
was triggered

Optimize the control parameters
Alarm set to narrowly

11

Alarm 2 - Max

The configured max. alarm 2
was triggered

Optimize the control parameters
Alarm set to narrowly

12

Alarm - External

The configured alarm 1 at input
1 was triggered

Check the source of the external alarm

13

Alarm - External

The configured alarm 1 at input
2 was triggered

Check the source of the external alarm

14

Alarm - External

The configured alarm 2 at input
1 was triggered

Check the source of the external alarm

15

Alarm - External

The configured alarm 2 at input
2 was triggered

Check the source of the external alarm

16

No USB flash
drive inserted

When exporting data, insert a USB flash drive in
the controller

17

Import/export of
data via the USB
flash drive
unsuccessful

The file was edited with a PC
(text editor) and saved in the
wrong format or the USB flash
drive was not detected.

You want to import data that is
not in the import folder on the
USB flash drive

Do not edit XML files with a text editor, only in
the controller.

Format the USB flash drive (format: FAT32). No
quick formatting

Use a different USB flash drive (1-8GB)
When importing, all data must be in the import

folder on the USB flash drive.
It is best to use USB flash drives up to 8GB.

Programs are
rejected during
the import of
programs

Temperature, time or rate is
outside the limit values

Import only programs that are suitable for the
furnace. The controllers differ as regards the
number of programs and segments and the
maximum furnace temperature.

While programs
are being
imported, "Error
occurred" is
displayed

The complete parameter set (at
least the configuration files) was
not stored in the "Import" folder
on the USB flash drive

If you deliberately left out files during import,
ignore the message. Otherwise, check the
completeness of the import files.

18

“Heating
blocked”

This message is displayed if a
door switch is connected to the
controller and the door is open

Close the door
Check the door switch

63

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8.3 Malfunctions of the Switchgear

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Error

Cause

Remedy

Controller does not light

up

Controller is switched off

Switch the power switch to “I”

No power available

Is the power cord plugged into the
socket?

Check the building fuses.
Check the fuse of the controller (if

present) and replace it if necessary.

Check the fuse of the controller (if present)
and replace it if necessary.

Switch the power switch on. If the error
occurs again, contact Nabertherm
Service

Controller displays error

See the separate instructions of the
controller

See the separate instructions of the
controller

Furnace does not heat

Door / cover is open

Close the door / cover

The door contact switch is faulty (if present)

Check the door contact switch

The “wait” or clock icon (product line 400
controllers) lights up

The program is waiting for the
programmed start time.

Set the wait time to 00:00 or disable it

Error in entering the program

Check the heating program (see the
separate instructions of the controller)

Heating element defective

Have this checked by Nabertherm
Service or a qualified electrician.

Very slow heating of the

heating space

The fuse(s) of the connection is/are
defective.

Check the fuse(s) of the connection and
replace if necessary.

Notify Nabertherm service if the new
fuse fails again immediately.

The program does not

jump to the next segment

In one TIME segment in the program input,
the wait time is set to INFINITE (product
line 400 controllers).

If charge control is activated, the
temperature of the charge is higher than the
zone temperatures.

Do not set the wait time to INFINITE

If charge control is activated, the
temperature of the charge is higher than the
zone temperatures.

The parameter [LOWER BLOCK] must
be set to [NO].

The controller module

can not be registered on

the operating unit

Addressing error (product line 400
controllers)

Perform a bus reset

The controller is not

heating in the

optimization

No optimization temperature has been set

The temperature to be optimized must
be entered (see the separate instructions
of the controller)

64

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The temperature rises

faster than the controller

setting allows

The switch element of the heating unit
(semiconductor relay, thyristor or switch
contactor) is defective.

Individual defective components inside a
furnace cannot be completely ruled out in
advance. That is why the controllers and the
switchgear units must be equipped with
safety facilities. For example, the furnace
shuts down the heating unit in response to
error message 04 - 02 via an independent
contact element.

Have the switch element tested by a
qualified electrician and replaced as
necessary.

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The selected end

temperature was not

reached.

Extraction system

Reduce air flow of the extraction system
(valve)

Reduce exhaust air with the knob

on the front of the oven.

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8.4 Controller Check List

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Customer:

Furnace model:

Controller model:

Controller version (see information menu

): Controller serial number

Furnace serial number

Error code in the display:

The following errors are dependent on

external influences:

02-05 Ambient temperature too low: < -10 °C (14 °F)
02-04 Ambient temperature too high: > 70 °C (158 °F)

Detailed error description:

Export of the service information:

Please export all the data to a USB stick using the function
[EXPORT COMPLETELY] Generate a zip file using the ZIP
function integrated in Windows (compression) of the exported
folder (see the section "Importing and Exporting Data and
Parameters") and send them to your contact at Nabertherm
Service.

When does this error occur?

At specific point in the program or at certain times of day:

i

65

At specific temperatures:

How long has the error existed?

 Error is new

 Error has existed for a long time

 Unknown

Error frequency

 Error occurs frequently

 Error occurs regularly

 Error occurs rarely

 Unknown

Substitute

controller:

Has a substitute controller already been
used?

 yes

 no

Did the error continue with the substitute
controller?

 yes

 no

Checked according to the error search list
(see the furnace operating instructions)

 yes

 no

Please enter the following test program so that the furnace heats up at full power:

Program point

Value

Segment 01- Start Temperature

0 °C

Segment 01- Target Temperature

500 °C

Segment 01- Time

30 minutes

Segment 01- Target Temperature

500 °C

Close door/lid and start the example program

Please check the following items:

 Does the furnace heat (temperature rise)?
 Is the "Heating" symbol displayed?

Please call up the information menu in the heating up phase for further details.

Date: _______________

Name: ______________________

Signature: ___________________

66

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9 Spare Parts/Wearing Parts

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Ordering Spare Parts:

Our Nabertherm Service team is available worldwide. Due to our high vertical range of
manufacture, we deliver most spare parts from stock overnight or can produce them with
short delivery times. You can order Nabertherm spare parts directly from the factory
quickly and easily. If you do not find the spare part you are looking for in the spare parts
list or in the separate spare parts list, we would be happy to help you. Spare parts can be
ordered in writing, by phone or on the Internet -> see “Nabertherm Service”.

Availability of Spare Parts and Wearing Parts:

Although Nabertherm has many spare parts and wearing parts in stock, we cannot
guarantee the short-term availability of all of them. We recommend that certain parts be
ordered in good time. If you need any assistance when selecting spare parts and wearing
parts, the staff at Nabertherm will be glad to help you.

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Note

Original parts and Accessories are designed especially for Nabertherm furnaces. Replace
parts only with original Nabertherm parts. Otherwise the warranty will be void.
Nabertherm accepts absolutely no liability for damage caused by using parts that are not
original Nabertherm parts.

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Note

Contact our Nabertherm Service for dismantling and installing wearing/spare parts. See

“Nabertherm Service”. Work on the electrical equipment may be done only by qualified,

authorized electricians. This applies also to repairs that are not described here.

67

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Fig. 43: Spare/wearing parts (similar to picture)

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Model

TR 60

TR 120

TR 240

TR 450

TR 1050

No.

Name

Part
number

Part
number

Part
number

Part
number

Part
number

68

Model

TR 60

TR 120

TR 240

TR 450

TR 1050

1

Housing

1.1

Door seal

601405663



601405664



601405665



601405733



601405767



Viton door seal

1) 1) 1) 1)  1)



1.2

Left side wall

601405623



601405625



601405627



601405726



601405746



1.3

Right side wall

601405624



601405626



601405628



601405727



601405747



1.7

Removable grids

691404375



691404376



691404377



691404377



691404378



1.7a

Removable rail

621495008



621495008



621495009



621495009



621495217



1.8

Collecting pan

621495505



621495506



621495507



621495507



621495508



1.9

Butterfly valve, complete

601404285



601404305



601404267



601404267



601404410



1.10

Butterfly valve knob

691404251



691404251



691404251



691404251



691404251



1.11

Inside lighting

541600096



541600096



541600096



541600096



541600096



1.12

Bulbs for inside lighting

1) 1) 1) 1)  1)



1.13

Pane

691400813



691400813



691400813



691400530



691400653



2

Door

2.1

Door, complete

601405590



601405593



601405596



601405728



601405757
(left)



  



601405758
(right)



3

Electrical/controllers

3.1

Controller B410

801000091



801000091



801000091



801000091



801000091



3.2

Controller C450

801000096



801000096



801000096



801000096



801000096



3.3

Controller P480

801000097



801000097



801000097



801000097



801000097



3.3a

Controller R 7

540200719



540200719



540200719



540200719



540200719



3.4

Rocker switch

541800259



541800259



541800259



541800259



541800259



3.5

Type K thermocouple

540300061



540300061



540300061



540300061



540300061



3.7

Mechanical over-temperature limiter with manual
reset

601404361



601404361



601404361



601404361



601404361



3.8

Electrical over-temperature limiter with manual
reset

540200566



540200566



540200566



540200566



540200566



3.10

Power cable (state country where it will be used)

V0013xx



V0013xx



V0013xx



1)  1)



3.11

Euro power plug

540900258



540900258



540900258

-  - 

3.14

Switchgear fan

522800031



522800031



522800031



522800031



522800031



3.15

Circulation motor

542400473



542400473



542400473



542400473



542400178



3.16

Pipe heating elements

692270489



692270479



692270491



692270494



692270497



3.18

Adjustable fan speed

635001457



635001457



635001457



635001457



635001458



1) on request

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Symbols

Can be replaced by the customer with tools and instructions.

Can be replaced by trained personnel with tools and instructions.

NT Nabertherm Service required

69

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9.1 Replacing a Heating Element

Pos: 279 /TD/Ersatz-/Verschleißteile/War nung - Gefahren durch elektrischen Stro m - Netzstecker ziehen - für alle Öfen @ 3\mod_1189491390787_51.docx @ 212 73 @ @ 1

Warning – Danger of Electric Shock

Work on the electrical equipment may be done only by qualified, authorized electricians.
During work it must be ensured that the furnace and the switching equipment cannot be
activated by mistake (pull out the power plug) and that all moving parts in the furnace
are secured. Observe DGUV V3 or the corresponding national regulations in the country
where the furnace is installed.

Wait until the furnace and the connected parts have cooled to room temperature.

Pos: 280 /TD/Allgemeine Hinweise (für alle A nleitungen)/Warnung - Bei unsachg emäßer Installation ist die Funktion und Sic herheit der Anlage nicht mehr ... @ 3\ mod_1193759200813_51.docx @ 26438 @ @ 1

Warning – General Hazards!

If installed improperly, functioning and safety of the system can no longer be guaranteed.
The connection must be properly installed and put into operation by qualified personnel.

Pos: 281 /TD/Ersatz-/Verschleißteile/Vorsich t - Beschädigung von Bauteilen! Heiz element austauschen @ 3\mod_118949 1634400_51.docx @ 21286 @ @ 1

Caution – Damage to Components!

Heating elements are extremely sensitive to breaking. Any strain on or rotation of the
heating elements must be avoided. Failure to observe this rule will lead to the immediate
destruction of the sensitive heating elements.

Pos: 282 /TD/Ersatz-/Verschleißteile/U mlaufende Schrauben der Abdeckung sind mi t geeignetem Werkzeug zu lösen ... - Beschreibung @ 22\mod_133300862671 1_51.docx @ 153515 @ @ 1

Use an appropriate tool to remove the screws all around the cover and keep them in a
secure place for later use. The cover must be lowered onto a soft material (such as foam
rubber). The number and position of the screws may differ from one furnace model to the
next. The furnace may look different than the picture depending on the furnace model and
additional equipment.

Pos: 283 /TD/Ersatz-/Verschleißteile/Die Sc hrauben auf der Rückseite des Ofens sin d mit geeignetem Werkzeug zu lösen un d für eine spätere @ 112\mod_14568 23275434_51.docx @ 450132 @ @ 1

Undo the screws on the rear of the oven with a suitable tool and keep them in a safe place
for future use.

Pos: 284 /TD/Ersatz-/Verschleißteile/Lös en der Schrauben vom Deckel - Grafi k @ 112\mod_1456823280966_51.docx @ 450159 @ @ 1

Fig. 44: Undoing the screws from the top (similar to picture)

Pos: 285 /TD/Ersatz-/Verschleißteile/Ziehe Sie den Deckel zu sich bis zum deutlich sp ürbaren Anschlag. @ 112\mod_145 6823286670_51.docx @ 450186 @ @ 1

Pull the top towards you until you feel it catching.

Pos: 286 /TD/Ersatz-/Verschleißteile/Ziehe n des Deckels - Grafik @ 112\mod_14 56823349284_51.docx @ 450213 @ @ 1

Fig. 45: Pulling the top (similar to picture)

70

Pos: 287 /TD/Ersatz-/Verschleißteile/Deckel anheben und neben den Ofen ableg en. Legen Sie zum Schutz des Deckels eine weiche Unterlage... @ 112\mod_14 56823354722_51.docx @ 450240 @ @ 1

Lift the top and place it beside the oven. Place some soft padding under the top to protect it.

Pos: 288 /TD/Ersatz-/Verschleißteile/We nn vorhanden auf das Schutzerdungskab el von den umlaufenden Abdeckungen zur Klemme achten ... @ 105\mod_14454 40537793_51.docx @ 416060 @ @ 1

If present, pay attention to the protective ground cable from the panel to the terminal; if
necessary, dismantle the cable from the terminal.

Pos: 289 /TD/Ersatz-/Verschleißteile/Anhe ben und Ablegen des Deckels - Grafik @ 112\mod_1456823362332_51.doc x @ 450267 @ @ 1

Fig. 46: Lifting and removing the top (similar to picture)

Pos: 290 /TD/Ersatz-/Verschleißteile/Der Of en ist vollständig zu entleeren. Gitterrost e und Einschubleisten sind zu entnehm en (siehe ...) @ 113\mod_145682530871 4_51.docx @ 450618 @ @ 1

Completely empty the oven. Remove the grids and trays (see "Adjusting the Removable
Grids").

Pos: 291 /TD/Ersatz-/Verschleißteile/Der Of en ist vollständig zu entleeren - Grafi k @ 112\mod_1456823373255_51.doc x @ 450321 @ @ 1

Fig. 47: Completely empty the oven (similar to picture).

Pos: 292 /TD/Ersatz-/Verschleißteile/U m die Seitenbleche herausziehen zu könne n, müssen die an den Seitenblechen befindlich en Schrauben.. @ 112\mod_145 6823460295_51.docx @ 450348 @ @ 1

To remove the metal sheets on the side, the screws on the side walls must be completely
unscrewed. This requires a 2.5 mm Allen key.

71

Pos: 293 /TD/Ersatz-/Verschleißteile/Schra uben der Seitenwände herausdrehen - Gr afik @ 112\mod_1456823466608_5 1.docx @ 450375 @ @ 1

Fig. 48: Unscrewing the screws on the side walls (similar to picture)

Pos: 294 /TD/Ersatz-/Verschleißteile/Seit enwände nach innen drehen. Beide Seiten wände vorsichtig nach vorne aus dem Of enraum ziehen ... @ 112\mod_1456823 474655_51.docx @ 450402 @ @ 1

Turn the side walls inwards. Carefully pull the side walls towards the front of the oven and
remove them.

Pos: 295 /TD/Ersatz-/Verschleißteile/Seit enwände nach innen drehen und aus de m Ofen entnehmen - Grafik @ 112\mod_ 1456823480265_51.docx @ 450429 @ @ 1

Fig. 49: Removing the side walls from the oven (similar to picture)

Pos: 296 /TD/Ersatz-/Verschleißteile/Be vor die Heizelemente von innen durch den Ofenraum entnommen werden können, müssen die Verschr... @ 112\mod_1456 823486906_51.docx @ 450456 @ @ 1

The screw connections on the heating elements must be dismantled before the heating
elements can be removed from inside the oven. The screw connections of the heating
elements are located in the switchgear of the top that was removed previously.

72

Pos: 297 /TD/Ersatz-/Verschleißteile/Versc hraubung der Heizelemente (Trockenschra nk TR ...) - Grafik @ 112\mod_1456 823493250_51.docx @ 450483 @ @ 1

Fig. 50: Screw connections of the heating elements (similar to picture)

Pos: 298 /TD/Ersatz-/Verschleißteile/Lös en sie zuerst die obere Verschraubung (1) mit geeignetem Werkzeug um die Kabel verbindung zum ... @ 112\mod_145682 3499391_51.docx @ 450510 @ @ 1

First, undo the top screw connection (1) with a suitable tool in order to release the cable
connection to the heating element. To remove the heating element through the oven, the
screw connection (3) of the heating elements must be completely unscrewed with a suitable
tool (hex nut M14 wrench size 19). Before doing this, carefully remove the insulation (2) as
this will be reused later.

Pos: 299 /TD/Ersatz-/Verschleißteile/Versc hraubungen des Heizelementes lösen (Tro ckenschrank TR ...) - Grafik @ 112\ mod_1456823506110_51.docx @ 450537 @ @ 1

Fig. 51: Undoing the screw connections of the heating element (similar to picture)

Pos: 300 /TD/Ersatz-/Verschleißteile/Heiz element/e vorsichtig schräg nach unten hi n herausziehen. Beschädigte Heizele mente sind gegen ... @ 112\mod_145682 3512844_51.docx @ 450564 @ @ 1

Remove the heating element(s) carefully at a downward angle. Replace damaged heating
elements with similar ones. The oven must not be operated with damaged heating elements.

73

Pos: 301 /TD/Ersatz-/Verschleißteile/Ent nahme eines Heizelementes (Trockenschr ank TR...) - Grafik @ 112\mod_1456758 845231_51.docx @ 450016 @ @ 1

Fig. 52: Removing a heating element (similar to picture)

Pos: 302 /TD/Ersatz-/Verschleißteile/Die i m Lieferumfang enthaltenen Heizelemente sind vor Montage auf Beschädigungen z u überprüf @ 112\mod_1456821856 978_51.docx @ 450051 @ @ 1

Check the supplied heating elements for damage before installation.

Pos: 303 /TD/Ersatz-/Verschleißteile/Den Lieferumfang mit dem Lieferschein und d en Auftragspapieren vergleichen. Fehlend e Teile und ... @ 105\mod_1444835179 166_51.docx @ 414590 @ @ 1

Compare the delivered items with the delivery note and the purchase order documents.
Immediately notify the carrier and Nabertherm GmbH of any missing or damaged parts, as
complaints received at a later date cannot be acknowledged.

Pos: 304 /TD/Ersatz-/Verschleißteile/Der Ein bau der neuen Heizelemente und die vor her demontierten/gelösten Bauteile erf olgt in ... @ 106\mod_1445494798053_5 1.docx @ 416534 @ @ 1

Install the new heating elements and the dismantled/detached components in the reverse
order.

Pos: 305 /TD/Allgemeine Hinweise (für alle A nleitungen)/Hinweis - Alle Schraub- u nd Steckverbindungen sind ordnungsgem äß zu überprüfen. @ 21\mod_1331807 422171_51.docx @ 151860 @ @ 1

Note

Make sure that all screwed and plugged connections are in working order.

Pos: 306 /TD/Ersatz-/Verschleißteile/Wir e mpfehlen die Schaltanlage und den Ofenr aum zum Beispiel durch Absaugen grü ndlich zu reinigen. @ 105\mod_144489 7671400_51.docx @ 415190 @ @ 1

We recommend that you clean the switchgear and furnace chamber thoroughly, with a
vacuum cleaner, for example.

Pos: 307 /TD/Einleitung/Technische Daten/Fl ansche/Drehmomente für Schrauben/M uttern M4_M5_M6_M7_M8_M10 - Ta belle @ 97\mod_1435573472082_51.doc x @ 393604 @ @ 1

Screw tightening torque

Tighten power cable clamps and screws on the heating elements with a defined torque.
If this advice is not followed, the heating elements may be damaged.

Thread diameter
Metric thread (M)

Torque in Nm

M 4

2.0

M 5

6.0

M 6

8.0

M 7

14.0

74

Screw tightening torque

M 8

20.0

M 10

39.0

Pos: 308 /TD/Ersatz-/Verschleißteile/Netzst ecker einstecke n (siehe Kapit el „Anschluss an das Elektron etz“) danach Ne tzschalter ... @ 3\mod_119 0014559588_51.docx @ 21847 @ @ 1

Commissioning

Insert the mains power connector (see chapter "Connection to the Mains Electricity"), then
switch on the power switch and check the function of the furnace (see chapter "Operation").

Pos: 309 /TD/Ersatz-/Verschleißteile/Übersc hrift - Thermoelement austauschen 1.1 @ 2\mod_1186579569245_51.docx @ 20769 @ 2 @ 1

9.2 Replacing a Thermocouple

Pos: 310 /TD/Ersatz-/Verschleißteile/War nung - Gefahren durch elektrischen Stro m - Netzstecker ziehen - für alle Öfen @ 3\mod_1189491390787_51.docx @ 212 73 @ @ 1

Warning – Danger of Electric Shock

Work on the electrical equipment may be done only by qualified, authorized electricians.
During work it must be ensured that the furnace and the switching equipment cannot be
activated by mistake (pull out the power plug) and that all moving parts in the furnace
are secured. Observe DGUV V3 or the corresponding national regulations in the country
where the furnace is installed.

Wait until the furnace and the connected parts have cooled to room temperature.

Pos: 311 /TD/Allgemeine Hinweise (für alle A nleitungen)/Warnung - Bei unsachg emäßer Installation ist die Funktion und Sic herheit der Anlage nicht mehr ... @ 3\ mod_1193759200813_51.docx @ 26438 @ @ 1

Warning – General Hazards!

If installed improperly, functioning and safety of the system can no longer be guaranteed.
The connection must be properly installed and put into operation by qualified personnel.

Pos: 312 /TD/Ersatz-/Verschleißteile/Vorsich t - Beschädigung von Bauteilen! Therm oelement austauschen @ 3\mod_118 9492921935_51.docx @ 21312 @ @ 1

Caution - damage to components!

Thermocouples are extremely sensitive to breakage. Any strain on or rotation of the
thermocouples must be avoided. Failure to observe this rule will lead to the immediate
destruction of the sensitive thermocouples.

Pos: 313 /TD/Ersatz-/Verschleißteile/Der Of en ist vollständig zu entleeren. Gitterrost e und Einschubleisten sind zu entnehm en (siehe ...) @ 113\mod_145682530871 4_51.docx @ 450618 @ @ 1

Completely empty the oven. Remove the grids and trays (see "Adjusting the Removable
Grids").

Pos: 314 /TD/Ersatz-/Verschleißteile/Die Sc hrauben auf der Rückseite des Ofens sin d mit geeignetem Werkzeug zu lösen un d für eine spätere @ 112\mod_14568 23275434_51.docx @ 450132 @ @ 1

Undo the screws on the rear of the oven with a suitable tool and keep them in a safe place
for future use.

Pos: 315 /TD/Ersatz-/Verschleißteile/Lös en der Schrauben vom Deckel - Grafi k @ 112\mod_1456823280966_51.docx @ 450159 @ @ 1

Fig. 53: Undoing the screws from the top (similar to picture)

Pos: 316 /TD/Ersatz-/Verschleißteile/Ziehe Sie den Deckel zu sich bis zum deutlich sp ürbaren Anschlag. @ 112\mod_145 6823286670_51.docx @ 450186 @ @ 1

Pull the top towards you until you feel it catching.

75

Pos: 317 /TD/Ersatz-/Verschleißteile/Ziehe n des Deckels - Grafik @ 112\mod_14 56823349284_51.docx @ 450213 @ @ 1

Fig. 54: Pulling the top (similar to picture)

Pos: 318 /TD/Ersatz-/Verschleißteile/Deckel anheben und neben den Ofen ableg en. Legen Sie zum Schutz des Deckels eine weiche Unterlage... @ 112\mod_14 56823354722_51.docx @ 450240 @ @ 1

Lift the top and place it beside the oven. Place some soft padding under the top to protect it.

Pos: 319 /TD/Ersatz-/Verschleißteile/We nn vorhanden auf das Schutzerdungskab el von den umlaufenden Abdeckungen zur Klemme achten ... @ 105\mod_14454 40537793_51.docx @ 416060 @ @ 1

If present, pay attention to the protective ground cable from the panel to the terminal; if
necessary, dismantle the cable from the terminal.

Pos: 320 /TD/Ersatz-/Verschleißteile/Anhe ben und Ablegen des Deckels - Grafik @ 112\mod_1456823362332_51.doc x @ 450267 @ @ 1

Fig. 55: Lifting and removing the top (similar to picture)

Pos: 321 /TD/Ersatz-/Verschleißteile/Ther moelement austauschen - Typ N - MTE wird gesteckt - Standard Beschreibung - T ext @ 89\mod_1427797039544_51.d ocx @ 373716 @ @ 1

First remove the two screws (A) from the thermocouple connection. Remove screw (B) and
pull out the thermocouple (C).

Insert the new thermocouple carefully into the thermal channel (C), install and connect in
reverse order. Make sure that the polarity of the electrical connections (D) is correct*).

Pos: 322 /TD/Ersatz-/Verschleißteile/Ther moelement austauschen - Trockenschran k TR ... (Modell 2015) - Grafik @ 112\m od_1456821964605_51.docx @ 450078 @ @ 1

Fig. 56: Dismantling the thermocouple(s) (similar to picture)

76

Pos: 323 /TD/Allgemeine Hinweise (für alle A nleitungen)/Hinweis - Die Anschlüss e der Verbindungsleitungen vom Ther moelement zum Regler sind mit + und - @ 3\ mod_1190123241249_51.docx @ 2191 6 @ @ 1

Note

*) The connections of the connecting lines from the thermocouple to the controller are
labeled with and . It is absolutely essential to observe the correct polarity.

to to

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Compare the delivered items with the delivery note and the purchase order documents.
Immediately notify the carrier and Nabertherm GmbH of any missing or damaged parts, as
complaints received at a later date cannot be acknowledged.

Pos: 325 /TD/Allgemeine Hinweise (für alle A nleitungen)/Hinweis - Alle Schraub- u nd Steckverbindungen sind ordnungsgem äß zu überprüfen. @ 21\mod_1331807 422171_51.docx @ 151860 @ @ 1

Note

Make sure that all screwed and plugged connections are in working order.

Pos: 326 /TD/Ersatz-/Verschleißteile/Mont age der Abdeckung/en erfolgt in umgekehrt er Reihenfolge. Wenn erforderlich.. Ablu ftrohr-Bauteile @ 91\mod_1430209691462_ 51.docx @ 379458 @ @ 1

The panels are assembled in the reverse order. If necessary, connect the ground cable
between the terminal and the panel again properly. Cables behind the panels must be
installed freely and must not be installed over or come into contact with the exhaust air tube
or other hot components.

Pos: 327 /TD/Ersatz-/Verschleißteile/Netzst ecker einstecke n (siehe Kapit el „Anschluss an das Elektron etz“) danach Ne tzschalter ... @ 3\mod_119 0014559588_51.docx @ 21847 @ @ 1

Commissioning

Insert the mains power connector (see chapter "Connection to the Mains Electricity"), then
switch on the power switch and check the function of the furnace (see chapter "Operation").

Pos: 328 /TD/Ersatz-/Verschleißteile/Übersc hrift - Türdichtung austauschen 1.1 @ 9\mod_1249629343888_51.docx @ 64 820 @ 2 @ 1

9.3 Replacing Door Seals

Pos: 329 /TD/Ersatz-/Verschleißteile/War nung - Gefahren durch elektrischen Stro m - Netzstecker ziehen - für alle Öfen @ 3\mod_1189491390787_51.docx @ 212 73 @ @ 1

Warning – Danger of Electric Shock

Work on the electrical equipment may be done only by qualified, authorized electricians.
During work it must be ensured that the furnace and the switching equipment cannot be
activated by mistake (pull out the power plug) and that all moving parts in the furnace
are secured. Observe DGUV V3 or the corresponding national regulations in the country
where the furnace is installed.

Wait until the furnace and the connected parts have cooled to room temperature.

Pos: 330 /TD/Allgemeine Hinweise (für alle A nleitungen)/Warnung - Bei unsachg emäßer Installation ist die Funktion und Sic herheit der Anlage nicht mehr ... @ 3\ mod_1193759200813_51.docx @ 26438 @ @ 1

Warning – General Hazards!

If installed improperly, functioning and safety of the system can no longer be guaranteed.
The connection must be properly installed and put into operation by qualified personnel.

Pos: 331 /TD/Ersatz-/Verschleißteile/Wir e mpfehlen für den Austausch der Türdich tung die Schwenktür ganz zu öffnen. @ 113\mod_1456825540981_51.docx @ 4 50645 @ @ 1

To replace the door seal, we recommend that you open the swing door completely.

Pos: 332 /TD/Ersatz-/Verschleißteile/Der Of en ist vollständig zu entleeren. Gitterros te und Einschubleisten sind zu entneh men (siehe ...) @ 113\mod_145682530871 4_51.docx @ 450618 @ @ 1

Completely empty the oven. Remove the grids and trays (see "Adjusting the Removable
Grids").

Pos: 333 /TD/Ersatz-/Verschleißteile/All e vorn umlaufend am Ofeninnengehäuse b efindlichen Schrauben lösen (nicht heraus drehen). @ 112\mod_145682518235 3_51.docx @ 450591 @ @ 1

Undo all the screws around the inside of the oven (do not completely unscrew them). The
number of screws may differ depending on the oven model.

Pos: 334 /TD/Ersatz-/Verschleißteile/Alte T ürdichtung umlaufend herausziehen und g egen eine neue austauschen. @ 113\ mod_1456828879521_51.docx @ 45069 9 @ @ 1

Remove the old door seal and replace it with a new one.

+-+

+

-

-

77

Pos: 335 /TD/Ersatz-/Verschleißteile/Den Lieferumfang mit dem Lieferschein und d en Auftragspapieren vergleichen. Fehlend e Teile und ... @ 105\mod_1444835179 166_51.docx @ 414590 @ @ 1

Compare the delivered items with the delivery note and the purchase order documents.
Immediately notify the carrier and Nabertherm GmbH of any missing or damaged parts, as
complaints received at a later date cannot be acknowledged.

Pos: 336 /TD/Ersatz-/Verschleißteile/U mlaufende Schrauben lösen - Trockenschra nk TR ... (Modell 2015) - Grafik @ 113\ mod_1456828884787_51.docx @ 450726 @ @ 1

Fig. 57: Undoing the screws around the oven (similar to picture)

Pos: 337 /TD/Ersatz-/Verschleißteile/Neu e Türdichtung (1) umlaufend einsetzen. Begi nnen Sie mittig auf Seite des Türansc hlags ... @ 113\mod_1456828890943_5 1.docx @ 450753 @ @ 1

Install the door seal (1) all around the door. Start by inserting the door seal in the middle of
the side with the hinge. Make sure that the "barb" of the door seal (2) faces inside the oven.
When you have positioned the door seal, carefully tighten the screws (3). The sheet metal
inside the oven must not be "dented".

Pos: 338 /TD/Ersatz-/Verschleißteile/Rich tiges Einsetzen der Türdichtung - Troc kenschrank TR ... (Modell 2015) - Grafi k @ 113\mod_1456828896194_51.docx @ 450780 @ @ 1

Fig. 58: Inserting the door seal correctly (similar to picture)

Pos: 339 /TD/Ersatz-/Verschleißteile/Tür dichtung umlaufend einsetzen - Trockenschr ank TR ... (Modell 2015) - Grafik @ 1 13\mod_1456828900865_51.docx @ 4508 07 @ @ 1

Fig. 59: Inserting the door seal all around the door (similar to picture)

Pos: 340 /TD/Ersatz-/Verschleißteile/Die In nenseite der Schwenktür sollte umlaufend und gleichmäßig gegen die Türdichtung s chließen @ 113\mod_14568289063 34_51.docx @ 450834 @ @ 1

The inside of the swing door should close against the seal evenly all the way around.

78

Pos: 341 /TD/Ersatz-/Verschleißteile/Nach Einbau der T ürdichtung gege benenfalls Sc hwenktür nachj ustieren (siehe Kapitel „Türjustier ung“). @ 113\ mod_1456828873568_51.docx @ 4506 72 @ @ 1

When the door seal has been installed, adjust the swing door if necessary (see "Door
Adjustment").

Pos: 342 /TD/Ersatz-/Verschleißteile/Mont age der vorher gelösten Teile erfolgt in u mgekehrter Reihenfolge @ 23\mod_1 335949647529_51.docx @ 156535 @ @ 1

Note

Assemble the loosened parts in the reverse sequence.

Pos: 343 /TD/Ersatz-/Verschleißteile/Netzst ecker einstecke n (siehe Kapit el „Anschluss an das Elektron etz“) danach Ne tzschalter ... @ 3\mod_119 0014559588_51.docx @ 21847 @ @ 1

Commissioning

Insert the mains power connector (see chapter "Connection to the Mains Electricity"), then
switch on the power switch and check the function of the furnace (see chapter "Operation").

Pos: 344 /TD/Ersatz-/Verschleißteile/Übersc hrift - Türjustierung 1.1 @ 9\mod_12 49630210959_51.docx @ 64854 @ 2 @ 1

9.4 Door Adjustment

Pos: 345 /TD/Ersatz-/Verschleißteile/War nung - Gefahren durch elektrischen Stro m - Netzstecker ziehen - für alle Öfen @ 3\mod_1189491390787_51.docx @ 212 73 @ @ 1

Warning – Danger of Electric Shock

Work on the electrical equipment may be done only by qualified, authorized electricians.
During work it must be ensured that the furnace and the switching equipment cannot be
activated by mistake (pull out the power plug) and that all moving parts in the furnace
are secured. Observe DGUV V3 or the corresponding national regulations in the country
where the furnace is installed.

Wait until the furnace and the connected parts have cooled to room temperature.

Pos: 346 /TD/Allgemeine Hinweise (für alle A nleitungen)/Warnung - Bei unsachg emäßer Installation ist die Funktion und Sic herheit der Anlage nicht mehr ... @ 3\ mod_1193759200813_51.docx @ 26438 @ @ 1

Warning – General Hazards!

If installed improperly, functioning and safety of the system can no longer be guaranteed.
The connection must be properly installed and put into operation by qualified personnel.

Pos: 347 /TD/Ersatz-/Verschleißteile/U mlaufende Schrauben der Abdeckung sind mi t geeignetem Werkzeug zu lösen ... - Beschreibung @ 22\mod_133300862671 1_51.docx @ 153515 @ @ 1

Use an appropriate tool to remove the screws all around the cover and keep them in a
secure place for later use. The cover must be lowered onto a soft material (such as foam
rubber). The number and position of the screws may differ from one furnace model to the
next. The furnace may look different than the picture depending on the furnace model and
additional equipment.

Pos: 348 /TD/Ersatz-/Verschleißteile/Die Sc hrauben auf der Rückseite des Ofens sin d mit geeignetem Werkzeug zu lösen un d für eine spätere @ 112\mod_14568 23275434_51.docx @ 450132 @ @ 1

Undo the screws on the rear of the oven with a suitable tool and keep them in a safe place
for future use.

Pos: 349 /TD/Ersatz-/Verschleißteile/Lös en der Schrauben vom Deckel - Grafi k @ 112\mod_1456823280966_51.docx @ 450159 @ @ 1

Fig. 60: Undoing the screws from the top (similar to picture)

Pos: 350 /TD/Ersatz-/Verschleißteile/Ziehe Sie den Deckel zu sich bis zum deutlich sp ürbaren Anschlag. @ 112\mod_145 6823286670_51.docx @ 450186 @ @ 1

Pull the top towards you until you feel it catching.

79

Pos: 351 /TD/Ersatz-/Verschleißteile/Ziehe n des Deckels - Grafik @ 112\mod_14 56823349284_51.docx @ 450213 @ @ 1

Fig. 61: Pulling the top (similar to picture)

Pos: 352 /TD/Ersatz-/Verschleißteile/Deckel anhebe n und neben den Ofen ablegen. Legen Sie zum Schutz des Deckels eine weiche Unt erlage... @ 112\mod_1456823354722 _51.docx @ 450240 @ @ 1

Lift the top and place it beside the oven. Place some soft padding under the top to protect it.

Pos: 353 /TD/Ersatz-/Verschleißteile/We nn vorhanden auf das Schutzerdungskab el von den umlaufenden Abdeckungen zur Klemme achten ... @ 105\mod_14454 40537793_51.docx @ 416060 @ @ 1

If present, pay attention to the protective ground cable from the panel to the terminal; if
necessary, dismantle the cable from the terminal.

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Fig. 62: Lifting and removing the top (similar to picture)

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Completely empty the oven. Remove the grids and trays (see "Adjusting the Removable
Grids").

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When a door hinge or a door seal is replaced, it is important that the swing door opens and
closes easily. The inside of the swing door should close against the seal evenly all the way
around. Adjustable hinges to adjust the swing door are located in the switchgear and at the
bottom of the door.

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Undo the screws on the side of the door lock (A) and on the hinge (C) using a suitable tool
(e.g. Size 10 ring wrench). Adjust the door hinge to the required position.

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Fine adjustment of the top sheets (3) by adjusting the screws (2) can allow the door to be
adjusted at the top, for example.

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At the bottom of the door adjust the screws of the door lock (B) and the hinge (D) in the
same manner.

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With the door closed, loosen the top or bottom hex nut. While tightening the hex nut again,
press the swing door firmly against the door seal. For precise alignment of the swing door
we recommend that you place an approx. 7 - 8 mm thick, sufficiently long strip of
cardboard underneath the door in the middle.

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Once the swing door is adjusted, remove the strip of cardboard.

80

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Fig. 63: Options for adjusting the swing door (similar to picture)

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Commissioning

Insert the mains power connector (see chapter "Connection to the Mains Electricity"), then
switch on the power switch and check the function of the furnace (see chapter "Operation").

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9.5 Electrical Schematics/Pneumatic Schematics

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Note

The documents included do not always contain the electrical schematics and pneumatic
diagrams.

If you need the respective diagrams, they can be ordered from Nabertherm Service.

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9.6 Separate the Snap-In Coupling (Plug) from the Furnace Housing

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With a small flat blade screwdriver carefully push the locking latch (2) upward while
pulling the plug (3) out of the coupling (4).

81

Fig. 64: Separate the snap-in coupling (plug) from the furnace housing (similar to picture)

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10 Nabertherm Service

The Nabertherm Service team is available at all times for furnace maintenance and repair.
If you have any questions, problems, or requirements, contact Nabertherm GmbH. By

mail, phone, or the Internet.



Mail

Nabertherm GmbH
Bahnhofstrasse 20
28865 Lilienthal/Germany



Phone or fax

Phone: [phone]
Fax: [phone]



Web or e-mail

www.nabertherm.com
[e-mail]

When you contact us, please have the type plate details of the furnace or controller at
hand.

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Provide the following details from the type plate:

82

Furnace model
Serial number
Article number
Year of construction

Fig. 65: Example (type plate)

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11 Shut-Down, Dismantling, and Storage

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To be Completed by the Operator

When the furnace is shut down, the following safety information must be observed to
prevent serious injury, damage to property, and damage to the environment.

The furnace may only be shut down by authorized, trained personnel.

The following operating materials/parts are to be disposed of by:
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________

Oils and other substances that are hazardous to water must be completely removed before
the furnace is dismantled for recycling or scrap.
Ensure that operating materials, lubricants, and consumables are disposed of in an
environmentally compliant manner. Regulations relating to proper waste recycling and
disposal must be observed.
The furnace may be lifted only at the intended points.
Use only the specified lifting and securing equipment to lift the furnace/parts.

Consider a total weight of kg when choosing
suitable lifting equipment.

For transportation, consider a permitted floor weight of at least ___________kg/m².

Before transporting the furnace, attach the following securing equipment:
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________

Note

See “Safety” and “Transportation”.

123

4

83

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11.1 Transportation/Return Transportation

If you still have the original packaging, this is the safest way to send a furnace.

Otherwise:

Choose suitable, adequately sturdy packaging. During transportation, packages are often

stacked, bumped, or dropped; the packaging acts as external protection for your furnace.

+45 °

-5 °C

- Drain all piping and containers before transportation/return transportation
(e.g. cooling water). Pump off operating materials and dispose of properly.

- Do not subject the furnace to extreme cold or hot temperatures (direct sunlight).
Storage temperature -5 °C to 45 ° (23 °F to 113 °F)
Humidity 5 % to 80 %, non-condensing

- Place the furnace on a level floor to prevent distortion.

- Packaging and transportation may be carried out only by qualified and
authorized persons.

If your furnace has transportation securing equipment (see "Transportation Securing"), use
this.
Otherwise, in general:

“Fix” and “secure” (adhesive tape) all moving parts and cushion and protect any projecting

parts against breakage.
Protect your electronic equipment against moisture and make sure that no loose packaging
material can get inside it.

Fill gaps in your packaging with soft but adequately firm material (e.g. foam mats) and
make sure that the equipment cannot slide around in the packaging.

If the goods are damaged during return transportation due to inadequate packaging
or some other breach of duty, the costs will be borne by the customer.

As a rule:
The furnace is sent without accessories, unless the technician expressly requests them.
Enclose a detailed description of the malfunction along with the furnace – this saves the

technician time and costs.
Don't forget to enclose the name and phone number of a contact in case there are any

questions.

Note

Return transportation may only be carried out according to the information given on the
packaging or in the transportation documents.

Note

Transportation and return transportation not covered by a warranty claim are paid for by
the customer.

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84

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12 Declaration of Conformity

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EC Declaration of Conformity

Compliant with EC Directive 2006/42/EC on machinery, Annex II A

We,

Nabertherm GmbH

Bahnhofstr. 20, 28865 Lilienthal, Germany

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hereby declare that the following product:

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Electrically heated oven

for commercial applications

Model

TR 60

TR 120

TR 240

TR 450

TR 1050

for all furnaces with switchgear and rated frequency of 50/60 Hz

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fulfills all the pertinent provisions contained in Directive 2006/42/EC.

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The product named is also compliant with all the provisions of the following directives:

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 2014/35/EU (LVD)

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 2014/30/EU (EMC)

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 2011/65/EU (RoHS)

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The signatories are authorized to compile the relevant technical documents. The address is the stated
manufacturer's address.

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Any change in the product not approved by the manufacturer invalidates this declaration.

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The following harmonized standards were applied:

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 DIN EN 61010-1 (07.2011)

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 DIN EN 61000-6-1 (10.2007), DIN EN 61000-6-3 (09.2011)

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Lilienthal, 03.04.2017

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________________________ _______________________
Michael Oberschmidt Thomas Adamek

Vice President R & D Head of Quality Management

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85

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13 For Your Notes

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86

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For Your Notes

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87

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For Your Notes

=== Ende der Liste für Textmarke Inhalt ===

Headquarters: Reg: M01.0063 ENGLISCH

Nabertherm GmbH . Bahnhofstr. 20

.

28865 Lilienthal/Bremen, Germany . Tel [phone], Fax -129 . [e-mail]

.

www.nabertherm.com