IHNE & TESCH HAK User manual

INSTRUCTIONS FOR USE OF HAK HEAT-COOL COMBINATIONS
IMPORTANT: READ THROUGH THE INSTRUCTIONS CAREFULLY BEFORE USE AND KEEP IN A SAFE
www.electricalheat.com
ITE-KIT-HCC-001 09/2020
4. Connection
Caution: Electrical connections !
The electrical connection must only be performed
by qualified electricians or persons trained in elec-
trical safety. Work on equipment must be carried
out with the equipment disconnected from the
mains. It must also be ensured that the equipment
cannot unintentionally be made live again.
Note the connection voltage!
Standards and specifications for electrical work
must be observed. Particular attention must be paid
here to conformity of the operating voltage (as em-
bossed on the equipment) with the supply voltage.
4.1 Protective conductor
It is imperative that the protective conductor is con-
nected, where available. Otherwise the connection
of the protective conductor of the heating system
must be checked as part of the mechanical connec-
tion to the machine.
4.2 Ex area
Operation of the heating systems in an Ex area is
not permissible.
4.3 Connecting line
To avoid short circuits, the connecting lines must
be routed such that they cannot come into contact
with sharp edges or objects. It must be ensured that
the terminal area is protected against the penetrati-
on of materials (e.g. oils, plastics, moisture, greases
and gases).
Note:
The appropriate connection variant for the terminal area
(e.g. cables, stranded wires, connectors, busbars etc.) must
be chosen depending on the ambient temperatures.
5. Technical data
5.1 Surface temperature
The specifications given below are maximum values for the
heating side and must not be exceeded:
HAK type: 450 °C max.
6. Disassembly + assembly
The heat-cool combinations are delivered fully assembled
for transport and insurance reasons. Disassembly and as-
sembly must be carried out as described below to achieve
the positive-locking fit required for operation.
6.1 Disassembly
Step 1: Open and remove the upper half of the cooling
jacket.
Step 2: Loosen clamping screws of cup spring caps on
the top heat-cool segments and then open these
segments.
Step 3: Loosen the retaining straps on the lower half of
the cooling jacket and remove the screws and
transport ring.
Ready for installation !
Dear customer,
Thank you very much for placing your trust in heating ele-
ments from Keller Ihne + Tesch, part of the IHNE & TESCH
Group. We have been developing and producing high-
quality electrical heating technology of the kind you have
opted for since 1932.
1. General
Our heating elements are high-quality products made in
Germany that have be subjected to rigorous quality checks
throughout all stages of development and production. A
high degree of vertical integration and the many years of
experience of our employees ensure that our high level of
performance can be maintained.
This quality standard will give you a guarantee of continued
reliable use of the heating elements over long periods of
time, provided that the technical information set out below
is observed.
If you have any other questions on installing and using the
heating elements or any of our other products not covered
in the information below, our field service sta and sales
engineers will be happy to help.
Our heating systems conform to the applicable provisions
of relevant EU directives and Equipment and Product Safe-
ty Act and bear the CE mark.
2. Applications
Our heat-cool combinations are ideal for heating and coo-
ling solids (extruder and injection moulding applications).
The heating elements are components, not operational
devices. They are intended for use in industrial electrical
heating systems.
3. Safety information
The instructions for use must be read carefully and under-
stood prior to commissioning the heating systems. Incor-
rect assembly, selecting the wrong heating system and
regulating a heating system incorrectly will cause defects
and accidents.
For safety reasons, the heating systems may only be used
for the applications described in these instructions for use.
General operating instructions and safety information must
be observed. When assembling the system, the safety ins-
tructions relevant to the installation location and generally
accepted technical rules and standards must be observed.
Heating systems must not under any circumstances be
commissioned if there are visible signs of (transport) dama-
ge.
Heating systems must not be commissioned until it has
been ensured that the insulation resistance is ≥1 MOhm.
The surface temperature of the heating systems must not
cause the temperature of the material to be heated to rise
to a critical level that could, for example, trigger a fire, ex-
plosion, the emission of smoke or gas, etc.
The heating systems must not be commissioned until they
have been mounted such the entire contact surface cannot
move.
Operating conditions other than those described in the
instructions for use will cause heating systems to malfunc-
tion or fail. Special applications must be approved by IHNE
& TESCH, Keller Ihne + Tesch.
Caution: Risk of combustion!
High temperatures occur during operation. All sur-
faces must be cold (≤40°C) when performing work
on heating systems.

INSTRUCTIONS FOR USE OF HAK HEAT-COOL COMBINATIONS
IMPORTANT: READ THROUGH THE INSTRUCTIONS CAREFULLY BEFORE USE AND KEEP IN A SAFE
www.electricalheat.com
ITE-KIT-HCC-001 09/2020
6.2 Assembly
Step 1: Mount the open system across the diameter of
the machine and provisionally fix in place with
side mounting braces. Close the heat-cool
segments and screw the clamping screws of the
cup spring caps on these segments to the lower
heat-cool segments.
CAUTION: Ensure a positive-locking construction and an
even clamping gap on the heat-cool segments!
Step 2: Tighten the clamping screws to a torque of
8.5 Nm and the clamping screws with cup
springs to 20 Nm (when cold). The expansion
compensation required at operating state tem-
perature to maintain functionality must be ensu-
red. In the case of heater bands with clamping
screws, the heating systems must be retigh-
tened during the first heating-up period to ensu-
re that the heating systems are sitting correctly
in relation to the metal insert to be heated.
Step 3: Place outer shell of cooling jacket in place and
screw down.
Ready for connection!
Heating systems may be destroyed by overheating if they
are not connected with a positive-locking fit.
It must be generally ensured that no mechanical damage
can be caused by external impacts, such as moving parts.
7. Operating conditions
7.1 Temperatures
The connecting lines must be protected against tempera-
ture eects or be designed to withstand them.
7.1.1 Temperature control
Heating systems can absorb moisture during storage or
storage in the wrong conditions, so they must be fitted with
temperature control with start-up circuitry.
7.2 Protection against accidental contact, dust and
moisture
The heating systems must be protected against contact,
dust and moisture according to the ambient conditions.
During operation, it is particularly important to prevent the
ingress of any foreign matter such as oil, water, plastic etc.
7.3 Storage
If storing for a prolonged period of time (several months), it
must be ensured through measures within the system that
the insulation resistance will drop.
Heating systems must not be commissioned until it has
been ensured that the insulation resistance is ≥1 MOhm.
Note:
We recommend that heating systems are stored in a dry
environment and that a suitable desiccant is added as
appropriate.
7.4 Disposal
Disposal must be carried out in accordance with statutory
regulations.
8. Troubleshooting and remedy of faults
Fault Possible cause Remedy
Not heating No mains voltage
present
Loose mains
connection
Torn connection
Heater band
faulty
Check/replace fuse,
switch on the switch
Tighten the mains con-
nection
Replace the heating
system
Replace the heater band
Insucient
heating
Incorrect heater
band, loose hea-
ter band
Incorrect opera-
ting voltage
Replace the heater band
Tighten the heater band
so that a positive-locking
fit is created
Connect the prescribed
supply voltage
Excessive
heating
Incorrect opera-
ting voltage
Construction of
heating elements
Connect the prescribed
supply voltage
Retighten the heater band
Heater
bands
cannot be
mounted
Diameter not
correct
Transport/sto-
rage damage
Readjust the heater band
diameter
Replace the heater band
Publisher:
Ihne & Tesch GmbH
Am Drostenstueck 18
D-58507 Luedenscheid
Phone: [phone]
Fax: [phone]
[email protected]
www.electricalheat.com
ITE-KIT-HCC-001 09/2020
Subject to changes