Intertec Data Systems SL MINITHERM DNLA User manual

Operating Instructions
SL MINITHERM DNLA
HOM177850763Ien-7 • 24/08/2021

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INTERTEC-Hess GmbH · Raffineriestr. 8 · 93333 Neustadt/Donau · Germany · [phone] · [email protected]
Table of contents
1 General ....................................................................................................................................................................3
2 Use ...........................................................................................................................................................................3
3 Explanation of symbols for warnings and signal words .................................................................................... 3
4 Safety information ..................................................................................................................................................3
5 Installation accessories ......................................................................................................................................... 4
6 Technical Data ........................................................................................................................................................4
7 Installation...............................................................................................................................................................4
8 Connection..............................................................................................................................................................5
9 Commissioning.......................................................................................................................................................6
10 Maintenance............................................................................................................................................................6
11 Troubleshooting .....................................................................................................................................................7
12 Deinstallation .........................................................................................................................................................7
13 Disposal...................................................................................................................................................................7
14 EU declaration of conformity ................................................................................................................................ 7
15 Further information and service ........................................................................................................................... 7

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INTERTEC-Hess GmbH · Raffineriestr. 8 · 93333 Neustadt/Donau · Germany · [phone] · [email protected]
1 General
These operating instructions describe the safe and
proper way to work with the device. The safety
information and instructions given as well as the local
accident prevention regulations and general safety
regulations valid in the area of application must be
complied with. These instructions are a constituent part
of the instrument and need to be kept in the immediate
vicinity of the device accessible to personnel at all times.
Before starting any work, the operating instructions
should be read in full.
2 Use
The electrical heater of the SL..THERM series is used
for direct heating through flange-mounting (conduction)
of for room heating (convection).
WARNING
The heater is only designed for non hazardous
areas.
INTERTEC-Hess GmbH accepts no liability for improper
use.
The areas of application are:
• Frost protection
• Condensation protection
• Maintaining temperature
As an option, thermostats can be integrated in the
connecting cable. If a TAE is used, the respective
operating instructions must be complied with.
3 Explanation of symbols for warnings
and signal words
The safety information warns the user about risks and
provide information on how risks can be avoided.
Safety information can be found at the start of the
chapter before the instructions which may lead to a
hazardous situation. Additional safety information can be
found at the beginning of this manual.
Safety instructions which must be adhered to are
highlighted as follows:
DANGER
DANGER
This sign is warning about an extremely hazardous
situation which, if not heeded, will lead to death or
serious irreversible injury.
WARNING
WARNING
This sign is warning about a hazardous situation which,
if not heeded, may lead to death or serious irreversible
injury.
CAUTION
NOTICE
This sign is warning about a hazardous situation which,
if not heeded, may lead to slight, reversible injury.
NOTICE
NOTE
It is essential to pay attention to this safety advice as you
may otherwise incur material damage.
INFO
Important notes and useful additional information.
4 Safety information
CAUTION
Risk of injury at the rib ends
The sharp edges on the heating ribs may cause injury if
handled incorrectly.
CAUTION
Risk of burns from a hot surface
Attainable highest temperatures: Max. 160°C
Do not touch device during operation! Before working on
the device, allow it to cool down first.

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5 Installation accessories
The following are included in the scope of delivery:
Piece Description
1 Heating unit
1 Angle bracket made of flat steel
1 Packet of screws containing the following:
2 M 6x12 hexagon bolts
1 T-head bolt type 28/15, M 6x15
1 Washer shape A 6.4
2 Lock washers shape J 6.4
If one of the components listed here is not included in
the scope of delivery, then please contact the
manufacturer.
6 Technical Data
Protection class IP66/IP68 1bar/30min
Rated voltage max. 265 V AC
Permitted operating voltage max. 275 V AC
Rated current (in
compliance with VDE 0298)
max. 10 A
Ambient temperature - 60 to + 60°C
Max. permitted operating
temperature
- 60 to + 180°C
Switching capacity of fault
alarm (AM)
10 A / 275 V AC
Connecting cable Silicone hose cable,
notch- and oil resistant, 3
x 1,5 mm²
Connecting cable AM Silicone hose cable,
notch- and oil resistant, 5
x 1,0 mm² Ø8,5 mm
Material Seawater-proof
aluminium, black
anodized
Mean Time Before Failure 50.000 h
Storage temperature - 60 to + 80°C
Profile type "L" Length x
Width x Height
109 x 211 x 40 mm
Profile type "L SF" Length x
Width x Height
109 x 127 x 40 mm
INFO
You will find the precise technical data for your
instrument on the label. You will find information on
the heating output on the data sheet.
Rated output
Rated voltage/Operating voltage
Thermostat
Illustration1: Example: SL MINITHERM DNLA 70 70 TS10
label
7 Installation
WARNING
The heater is only designed for non hazardous
areas.
INTERTEC-Hess GmbH accepts no liability for improper
use.
NOTICE
Carefully remove
When removing from the packaging and during
transport, the connection line must not be stressed or
bent.
Free convection may not be impeded. You will find the
minimum distances and installation position in the
following figure.
The label needs to remain legible.
Please make sure that the absolute heat transfer
coefficient of the surrounding housing is not smaller than
0.5 W/K.
To ensure operational safety, the heater must operate
under temperature conditions which will NOT exceed the
trigger temperature of the limiter.
The operating temperatures must be adhered to.
The connection cable must be permanently installed up
to the inlet into the on-site junction box, taking the
permissible bending radius = 5 x outer diameter into
consideration.

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INTERTEC-Hess GmbH · Raffineriestr. 8 · 93333 Neustadt/Donau · Germany · [phone] · [email protected]
Illustration2: Installation example MINITHERM with TAE or TS
with clearance
Illustration3: nstallation example MINITHERM SL with TAE or
TS with clearance
Additional installation material, such as rails or panels
and also junction boxes, are not included in the standard
scope of delivery (see Installation accessories [}Page4])
and must be ordered additionally.
8 Connection
WARNING
The heater is only designed for non hazardous
areas.
INTERTEC-Hess GmbH accepts no liability for improper
use.
INFO
The device may only be connected up and secured by a
trained person, taking into account the "rated voltage"
and "rated current" specified on the nameplate.
Where operating voltage = measured voltage (rated
voltage), then the heater is at its rated output. Mains
voltage fluctuations up to 10 % are then permissible.
Each heater with integrated TS thermostat must be
preceded by a 10 A fuse or a motor protection switch
with short-circuit and thermal quick release (set to 10 A)
as short-circuit protection. When using a heater without
integrated thermostat, the fuse protection can be
selected according to the cross-section of the supply
cable.
In a TT or TN system, a residual current device (RCD)
must be used where the measured triggering residual
current does not exceed 100 mA. Residual current
devices with a measured triggering residual current of 30
mA are preferable. In an IT system, an insulation
monitoring device needs to be used which switches off
the supply as soon as the insulation resistance is no
greater than 50 Ω per Volt of the rated voltage.
ATTENTION:
Never remove the
adapter/ cable gland!
Illustration4: Example heater with KLE connection

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INTERTEC-Hess GmbH · Raffineriestr. 8 · 93333 Neustadt/Donau · Germany · [phone] · [email protected]
CAUTION
NOTICE: Do not remove adapter/ cable
connection to connect up the heater!
This would cause irreversible damage to the heater.
The illustration may deviate from the heater.
1
2
L
N
PE
J
J
Junction
box
Heater
TAE
bn bl ye/gn bk gy
Option AM
bn=brown bl=blue ye/gn=yellow/green bk=black gy=grey
Illustration5: SL...THERM with TAE
1
2
J
L
N
PE
J
Junction box
Heater
TS
Option AM
bn
bu
ye/gn bk gy
bn=brown bu=blue ye/gn=yellow/green bk=black gy=grey
Illustration6: SL...THERM with TS
9 Commissioning
If the heater is installed in accordance with the notes in
the Installation [}Page 4] section and Connection [}
Page 5] sections, then the radiator may be
commissioned.
CAUTION
Sufficient heat dissipation must be ensured.
Unauthorized covers must be removed as otherwise
there is the risk of the heater overheating.
The heating circuit is permanently disconnected by a
temperature melt fuse which can't be reset if these
installation instructions are not adhered to.
10 Maintenance
The design of the device does not require any
maintenance.

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Functional and safety test intervals can be freely
selected by the operator in accordance with the
applicable regulations.
Repairs may only be carried out by the manufacturer in
the factory.
All components have to be kept clean and free of dust
and harmful substances that could lead to excessive
temperature rise.
11 Troubleshooting
If the heater fails, check the installation. Carry out a
continuity test on the heating circuit. Pay attention to the
connection diagram and switching point of the
thermostat!
12 Deinstallation
Disassembly may only be carried out by a trained
person.
DANGER
Risk of fatal injury from electric current!
If contact is made with live components, there is the risk
of fatal injury.
For this reason, switch off the voltage supply, secure
against being switched on again and check that no more
voltage is present.
Disconnect connection line from the clamps and from the
connection socket, disconnect device from bracket and
remove it.
13 Disposal
Disassemble the components of the product, taking the
applicable local labour protection and environmental
regulations into consideration and make sure that the
components are recycled:
• Scrap metal
• Send plastic elements to recycling
• Sort other components according to their material
properties and dispose of them.
NOTICE
Environmental damage may be caused if
disposed of incorrectly!
Electrical scrap and electronics components are subject
to hazardous waste treatment and must only be
disposed of by certified specialists!
The local community authorities or specialist waste
disposal companies can provide information on
environmentally friendly disposal.
14 EU declaration of conformity
The manufacturer, INTERTEC-Hess GmbH,
Raffineriestrasse 8, 93333 Neustadt/Donau, Germany,
hereby declares in sole responsibility that the product
Product / Type designation:
SL MINITHERM
complies with the provisions of the following directives
2014/35/EU (LVD), 2014/30/EU (EMC), 2011/65/EU
(RoHS), 2012/19/EU (WEEE) complies with the following
standards, harmonized standards, where appropriate
and/or standardized documents:
EN IEC 60364
EN IEC 61000-6-4:2007+A1:2011
Harmonized Standard (RoHS):
DIN EN IEC 63000:2019
Designation:
Neustadt, August 18th, 2021
Dipl.-Ing. Martin Hess, Managing Director
15 Further information and service
If the information contained in this instruction manual
should not be sufficient in any way, then INTERTEC
would be glad to be at your disposal to provide further
information and service.

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INTERTEC-Hess GmbH · Raffineriestr. 8 · 93333 Neustadt/Donau · Germany · [phone] · [email protected]
Please contact your INTERTEC contact person or
directly contact
INTERTEC-Hess GmbH
Raffineriestr. 8
93333 Neustadt/Donau
Germany
Phone: [phone]
e-mail: [email protected]
Website: www.intertec.info
Warranty
The legally defined warranties and warranty periods of
24 months are applicable to our scope of supply and
services.
You will find more detailed information in the
manufacturer warranty from INTERTEC for heating
systems and accessories.
These instructions do not claim to take all
designs, options or changes into
consideration, even in association with
installation, operation or maintenance.
INTERTEC does not accept responsibility
for providing information about changes
made retrospectively.