TEH 200 / TEH 300 / TEH 400
EN
ORIGINAL INSTRUCTIONS
ELECTRIC HEATER
TRT-BA-TEH200-TEH300-TEH400-TC2014-33-003-EN
Table of contents
Notes regarding the instructions ..........................................2
Safety .....................................................................................2
You can download the current version of the instructions and
the EUdeclaration of conformity via the following link:
Information about the device................................................4
Transport and storage...........................................................5
Assembly and installation.....................................................7
Operation ...............................................................................7
Errors and faults..................................................................10
Maintenance ........................................................................12
Technical annex...................................................................14
Disposal ...............................................................................31
Notes regarding the instructions
Symbols
Warning of electrical voltage
This symbol indicates dangers to the life and health of
persons due to electrical voltage.
TEH 200
https://hub.trotec.com/?id=42896
TEH 300
https://hub.trotec.com/?id=42897
TEH 400
https://hub.trotec.com/?id=42898
Warning
This signal word indicates a hazard with an average
risk level which, if not avoided, can result in serious
injury or death.
Caution
This signal word indicates a hazard with a low risk
level which, if not avoided, can result in minor or
moderate injury.
Note
This signal word indicates important information (e.g.
material damage), but does not indicate hazards.
Info
Information marked with this symbol helps you to carry
out your tasks quickly and safely.
Follow the manual
Information marked with this symbol indicates that the
instructions must be observed.
Safety
Read this manual carefully before starting or using the
device. Always store the manual in the immediate vicinity
of the device or its site of use!
Warning
Read all safety warnings and all instructions.
Failure to follow the warnings and instructions may
result in electric shock, fire and/ or serious injury.
Save all warnings and instructions for future
reference.
• Do not use the device in potentially explosive rooms and
do not install it there.
• Do not use the device in atmospheres containing oil,
sulphur, chlorine or salt.
• This appliance is not a toy! Keep away from children and
animals. Do not leave the device unattended during
operation.
• Only put up the device in an upright, stable position on firm
ground.
• Make sure that the air inlet and outlet are not obstructed.
• Make sure that the suction side is kept free of dirt and
loose objects.
• Do not place the device on combustible ground.
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electric heater TEH 200 / TEH 300 / TEH 400
• Never insert any objects or limbs into the device.
• Do not cover or transport the device during operation.
• Let the device dry out after a wet clean. Do not operate it
when wet.
• Do not expose the device to directly squirting water.
• Check accessories and connection parts for possible
damage prior to every use of the device. Do not use any
defective devices or device parts.
• Ensure that all electric cables outside of the device are
protected from damage (e.g. caused by animals). Never
use the device if electric cables or the power connection
are damaged!
• Disconnect the device from the mains, if it is not in use.
• Do not remove any safety signs, stickers or labels from the
device. Keep all safety signs, stickers and labels in legible
condition.
• Do not sit on the device.
• When positioning the device, observe the minimum
distances from walls and other objects as well as the
storage and operating conditions specified in the Technical
data chapter.
• Do not use the device in immediate proximity to curtains.
• Before carrying out maintenance, care or repair work on
the device, remove the mains plug from the mains socket.
Hold onto the mains plug while doing so.
• Only use original spare parts, for otherwise safe and
functional operation cannot be ensured.
Intended use
Only use the device TEH 200/ TEH 300/ TEH 400 for heating
atmospheric air (intake temperature: -20°C to max. +40 °C)
whilst adhering to the technical data.
Improper use
The device TEH 200/ TEH 300/ TEH 400 is not suited for
installation in fluids or on flooded or boggy grounds. The device
must not be used for sucking in fluids, e.g. from filled tanks or
basins.
The devices must not be operated when stacked on top of one
another for storage.
Any unauthorised changes, modifications or alterations to the
device are forbidden.
Personnel qualifications
People who use this device must:
• be aware of the dangers that occur when working with
electric heaters.
• have read and understood the instructions, especially the
Safety chapter.
Electrically skilled person
Electrically skilled personnel must be able to read and
understand electric circuit diagrams, to put electrical systems
into service and to maintain them, to wire control cabinets, to
ensure the functionality of electrical components and to identify
possible hazards from electrical and electronic systems.
Instructed person
Instructed persons have been informed of the tasks they were
entrusted with as well as of potential hazards resulting from
inappropriate behaviour. They are allowed to operate and
transport the device and perform simple maintenance activities
(cleaning the housing, cleaning the fan).
The device is to be maintained and looked after by instructed
personnel.
Residual risks
Warning of hot surface
Some parts of this product can become very hot and
cause burns. Particular attention has to be given where
children and vulnerable people are present!
Warning
Improper handling entails a risk of burning and electric
shock.
Only use the device as intended!
Warning
Dangers can occur at the device when it is used by
untrained people in an unprofessional or improper way!
Observe the personnel qualifications!
Warning
The device is not a toy and does not belong in the
hands of children.
Warning
Risk of suffocation!
Do not leave the packaging lying around. Children may
use it as a dangerous toy.
Warning
The air outlet grille becomes very hot during operation
and cause burns if touched! To not touch it. Keep a
distance.
Warning
To avoid damages to the device, never operate the
device without an inserted air filter!
Warning
Improper installation entails a risk of fire.
Do not place the device on combustible ground.
Do not place the device on high-pile carpets.
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electric heater TEH 200 / TEH 300 / TEH 400
Warning
In order to avoid overheating and fire hazards, the
heater must not be covered.
Behaviour in the event of an emergency
1. Immediately switch the device off via the main emergency
stop switch or the emergency stop at the upstream
distributor.
2. Remove persons from the danger area.
3. Disconnect the device from the electric circuit.
4. Do not reconnect a defective device to the mains.
Information about the device
Device description
The electric heater was designed as a robust, mobile unit also
to be positioned outdoors.
The device comes equipped with two lockable swivel castors(5)
and two trestle rollers(7) each. Forklift pockets and crane lugs
are attached to the housing as transport aids, enabling
convenient transport and space-saving storage by stacking up
to 3 devices on top of each other.
The housing is designed as welded frame construction and
provided with partially removable steel sheet panels. The
electrical control box made of steel is mounted in horizontal
position, protected between the stacking handle bars on the
housing, and contains all switching devices, operating
elements, indicator lights, safety devices and the control unit.
All steel and sheet metal parts are galvanized and powdercoated.
The device is designed ready-to-install and comes with all the
electrical and mechanical components as well as safety
installations required for safe and functional operation.
To ensure safe transport and operation, the device is also
equipped with a shock protection frame.
Functioning principle
The air is taken in by the fan via the integrated bag filter(10)
and heated by means of the multi-stage electric heating. Four
different temperature levels can be selected between 0 and
100%. These are kept constant by the integrated controller
with the maximum outlet temperature being reduced to approx.
60°C(±5°C).
Thanks to the two-stage fan operation a higher temperature
increase can be achieved by selecting the lower stage (approx.
2/3 of the nominal air volume). The integrated, electronically
controlled control unit with air volume flow measurement and
automatic rotational speed control of the fan ensures nearly
constant volumetric flow rates covering a wide load range (e.g.
for variable hose lengths).
The temperature increase refers to the sucked in air
temperature (usually the ambient temperature) and is increased
according to the preselection. The temperature sensors at air
inlet and outlet transmit the current temperature values to the
control unit, which then, depending on the demand, keeps the
preselected temperature increase constant by means of the
control and operation of individual heating elements or the
entire heater.
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electric heater TEH 200 / TEH 300 / TEH 400
Device depiction
1
2
3
4
5
6
7
8
9
8
10
11
12
2
5
6
7
Transport and storage
Note
If you store or transport the device improperly, the
device may be damaged.
Note the information regarding transport and storage of
the device.
Transport
• Remove all packing materials which serve to protect the
device during transport.
• Should the electric heater be damaged, please contact the
responsible dealer or manufacturer, where the purchase
was made.
• The electric heater may only be lifted at the points
provided with lifting gear (forklift pockets(6), transport
lugs(2)) intended for handling. The carrying capacity of the
lifting gear must be suitable for the weight of the electric
heater (see technical data).
No. Designation
1 Control panel with electrical control box
2 Transport lug
To make the device easier to transport, it is fitted with wheels.
3 Shock protection frame
4 Air outlet with hose connection
5 Swivel castor (lockable)
Only wheel the device on firm, level ground.
The following should be observed before transporting the
device using the castors:
6 Forklift pockets
7 Trestle rollers/ fixed castors
8 Lateral cover panel
9 Main switch with emergency stop function
10 Air inlet with weather protection grid and air filter access
11 Mains connection: CEE plug, 5-pin
12 Cover flap electrical control box
The following should be observed before transporting the
device using lifting gear:
Warning
Trip hazard! Make sure that nobody is situated in the
immediate proximity.
Warning
Risk of injury from suspended loads. Make sure that
nobody is situated in the immediate proximity.
• Only instructed persons are allowed to perform the
transport by use of lifting gear.
• Consider the centre of gravity when transporting the load.
The following should be observed after transporting the device:
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electric heater TEH 200 / TEH 300 / TEH 400
• Lock the swivel castors(5)!
Storage
5mm
When the device is not being used, observe the following
storage conditions:
• dry and protected from frost and heat
• in an upright position where it is protected from dust and
direct sunlight
• with a cover to protect it from invasive dust, if necessary
• Before restarting the device, check the condition of the
power cable. If there are doubts as to the sound condition,
contact the customer service.
• Have the device checked once a year by an electrically
skilled person at any rate.
The device can be stacked for storage purposes. In doing so,
observe the following:
• Only use suitable lifting gear.
• Make sure that the rollers of the device at the bottom are
locked and the device cannot move. To protect the rollers
and the frame, the bottommost device is to be jacked up
as illustrated below.
Warning
To prevent damage to the device, the bottom strut
should not be allowed to rest on the support.
A minimum distance of 5mm to the bottom must be
observed!
• Make sure that the wheels of the device to be stacked are
pointing inwards as is indicated in the following figure.
• The maximum amount of devices to be stacked on top of
one another is 3 (for transportation in a truck:
max. 2 devices).
• Place the device at the bottom on firm, level ground.
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electric heater TEH 200 / TEH 300 / TEH 400
Assembly and installation
9 13 14 15 16 17 18 19
Operation
Scope of delivery
• 1x Device
• 1x Manual
Start-up
Warning
Operating several devices stacked onto one another is
prohibited for safety reasons.
Do not take the devices into operation when stacked.
When positioning the device, observe the minimum distance
from walls or other objects as described in the Technical data
chapter.
• Position the device on firm, dry and level ground.
Depending on the floor load capacity a panel for weight
distribution is to be provided.
• When setting up the device, ensure a sufficient distance
for air inlet and outlet as well as for operation (see
Technical data).
• Lock the swivel castors and secure the device against
rolling away.
• Make sure that extension cables are completely unrolled.
• When positioning the device outdoors, make sure that no
water can enter the device through the air outlet. Connect
an air hose to the air outlet to minimize the risk.
Inserting the air filter
Note
Do not operate the device without an inserted air filter!
Without the air filter, the inside of the device will be
heavily contaminated. This could reduce the
performance and result in damage to the device.
• Make sure that the air filter is installed before switching
the device on.
Control panel
No. Designation
9 Main switch with emergency stop function
Position 0: Device is switched off.
Position I: The device is switched on.
13 Selection step switch
14 Button EIN-ON
15 Button AUS-OFF
16 Lamp BETRIEB-OPERATION
17 Lamp BEREIT-STAND BY
18 Lamp NACHLAUF-RUN ON
19 Lamp STÖRUNG-FAULT
Note
The main switch serves for switch-on and may only be
used as emergency stop switch for disconnection from
the mains in case of an emergency. For normal
switch-off please use the AUS-OFF button(15), which
initiates the rundown function (NACHLAUF-RUNON
lamp(18) illuminated). Only disconnect the device for
transport or storage via the main switch at the end of
the rundown period.
Connecting the power cable
• Insert the mains plug into a properly secured mains
socket.
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electric heater TEH 200 / TEH 300 / TEH 400
Switch-on of the device
ü The side covers, the electrical control box and the weather
protection grid are closed.
ü The bag filter is built in correctly.
ü Air inlet and air outlet are free from objects and/or
obstructions.
ü The device is secured against rolling away.
1. Insert the mains plug into a properly secured mains power
socket. Observe the rotating field (clockwise rotation).
2. Rotate the mains switch(9) to position "I".
ð The control unit is activated.
ð The device is ready for operation.
ð The BEREIT-STAND BY lamp(17) lights up.
3. Select the desired temperature level via the selection step
switch(13).
4. Actuate the green EIN-ON button(14).
ð The green BETRIEB-OPERATION lamp(16) will be
illuminated while the BEREIT-STAND BY lamp(17) goes
out.
ð The electric heater starts up in the selected temperature
level.
Note
The air outlet temperature is electronically limited to
approx. 60°C(±5°C) regardless of the preselection.
In case of the standard models the levels 0 to 7 are
engaged. In case of devices without air volume
switching only the levels 0 to 3 are engaged.
The levels 8 and upwards are reserved for special
designs.
Note
Selecting the temperature level does not limit the
electric current consumption from the mains!
No. Designation
0 100 % air flow rate and no temperature increase
1 100 % air flow rate and low temperature increase
(∆T = approx. 15°C)
2 100 % air flow rate and moderate temperature increase
(∆T = approx. 25°C)
3 100 % air flow rate and maximum temperature increase
(∆T = approx. 40°C)
4 66 % air flow rate and no temperature increase
5 66 % air flow rate and low temperature increase
(∆T = approx. 20°C)
6 66 % air flow rate and moderate temperature increase
(∆T = approx. 40°C)
7 66 % air flow rate and maximum temperature increase
(∆T = approx. 60°C)
Switch-off
1. Press the red AUS-OFF button(15).
ð The heating switches off.
ð The fan operates in rundown mode, e.g. the fan runs on
until the heating elements have cooled down to below
40°C.
ð The BETRIEB-OPERATION lamp(16) goes out.
ð The NACHLAUF-RUN ON lamp(18) is illuminated.
ð The BEREIT-STAND BY lamp(17) is illuminated.
ð Restart can be carried out at any time.
2. Wait until rundown operation is completed.
ð The NACHLAUF-RUN ON lamp(18) goes out.
ð The device is again ready for operation or else ready for
switch-off via the main emergency stop switch(9).
Shutdown
Warning of electrical voltage
Do not touch the mains plug with wet or damp hands.
• Proceed as described in the Switch-off section.
• Set the main emergency stop switch(9) to position "0".
• Clean the device according to the Maintenance chapter.
• Store the device according to the Storage chapter.
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electric heater TEH 200 / TEH 300 / TEH 400
Electrical control box
28
24
27
26
25
12
20
The following components are located in the control box:
Overtemperature protection
For overheating protection the electric heater comes equipped
with several safety elements:
• Disconnection of the electric heating from the mains when
falling below the minimum air volume.
• Reduction of the maximum air outlet temperature at
approx. 65°C.
• Rundown operation of the fan after switch-off to dissipate
the accumulated heat at the electric heating until the air
outlet temperature has dropped to below 40°C.
• Switch-off of the device by means of a safety temperature
limiter.
- The safety temperature limiter(24) can only be reset by
actuating the integrated reset switch(20). This switch is
located on the left side of the electrical control box.
No. Designation
24 Safety temperature limiter with reset switch
25 Control
26 Analogous operating hours counter
27 Fuses
28 Pressure sensor
Opening the electrical control box
The electrical control box may only be opened by instructed
persons. Only a qualified electrician is allowed to perform repair
work on the electrical system.
1. Open the cover flap at the electrical control box(12).
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electric heater TEH 200 / TEH 300 / TEH 400
Control
26
21
22
23
The control unit is located inside the electrical control box. The
control unit displays further information regarding the operating
condition of the device. Next to it is the analogous operating
hours counter(26).
The control unit ensures the constant regulation of the
volumetric flow, even when connecting different hose lengths
etc.
The control unit can also be used to display the current
parameters for volume flow, pressure and temperature.
Additionally, further faults are also indicated here.
For reading the control unit or operating hours counter first the
electrical control box must be opened. The current parameters
and faults are indicated on the display(21).
From the start screen the buttons A(23) and B(22) can be used
to browse through the menu.
• Input temperature in°C (temp.-in),
• Output temperature in°C (temp.-out),
• Output temperature in °C (delta-T):
• Digital operating hours display in h (run hours)
The following parameters can be called up:
• Volumetric flow in m3/h (airflow):
Errors and faults
The device has been checked for proper functioning several
times during production. If malfunctions occur nonetheless,
check the device according to the following list.
The STÖRUNG-FAULT lamp(19) lights up directly after
switch-on of the device:
• Aborted rundown from previous operation, which has led
to tripping of the safety temperature limiter. Actuate the
reset switch(20) of the safety temperature limiter and
restart the device.
• Malfunction in the software of the control unit or the
frequency converter (optional), which prevents the device
from starting. Acknowledge the fault by means of the
AUS-OFF button(15). If the STÖRUNG-FAULT lamp(19)
continues to be lit, switch the device off via the main
switch(9) and back on again after approx. 10 seconds.
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electric heater TEH 200 / TEH 300 / TEH 400
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