Trotec TTR 5200 User manual

TRT-BA-TTR5200-TTR6600-TTR8200-TC-001-EN ID TECHN. ANHANG
TTR 5200 / TTR 6600 / TTR 8200
EN
ORIGINAL INSTRUCTIONS
DESICCANT DEHUMIDIFIER

1 EN
desiccant dehumidifier TTR 5200 / TTR 6600 / TTR 8200
Table of contents
Notes regarding the instructions ..........................................1
Safety .....................................................................................2
Information about the device................................................4
Transport and installation.....................................................9
Assembly and installation...................................................10
Start-up................................................................................13
Operation .............................................................................14
Errors and faults..................................................................15
Maintenance ........................................................................18
Harmful influences on rotors ..............................................21
Disposal ...............................................................................22
Options.................................................................................23
Technical annex...................................................................32
Notes regarding the instructions
Symbols
Warning of electrical voltage
This symbol indicates dangers to the life and health of
persons due to electrical voltage.
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.
Wear hearing protection
Information marked with this symbol indicates that you
should wear hearing protection.
Wear protective gloves
Information marked with this symbol indicates that you
should wear protective gloves.
Wear foot protection
Information marked with this symbol indicates that you
should wear safety boots.
You can download the current version of the instructions and
the EUdeclaration of conformity via the following link:
TTR 5200
https://hub.trotec.com/?id=36756
TTR 6600
https://hub.trotec.com/?id=36755
TTR 8200
https://hub.trotec.com/?id=36753

EN 2
desiccant dehumidifier TTR 5200 / TTR 6600 / TTR 8200
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.
• Do not use the device in aggressive atmosphere.
• Set the device up in an upright and stable position.
• Let the device dry out after a wet clean. Do not operate it
when wet.
• Do not use the device with wet or damp hands.
• Do not expose the device to directly squirting water.
• Ensure sufficient lighting at the device.
• Never insert any objects or limbs into the running device.
• Do not cover or transport the device during operation.
• Do not sit on the device.
• 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!
• The electrical connection must correspond to the
specifications on the nameplate. Additionally, information
regarding the electrical connection is provided in the
technical annex.
• Insert the mains plug(if any) into a properly secured mains
power socket.
• Observe the device's power input, cable length and
intended use when selecting extensions to the power
cable. Completely unroll extension cables. Avoid electrical
overload.
• Before maintenance, care or repair work disconnect the
device from the mains and secure it against unauthorized
restart.
• 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.
• Do not under any circumstances use the device if you
detect damages on the mains plug or power cable.
If the supply cord is damaged, it must be replaced by the
manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.
Defective power cables pose a serious health risk!
• 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
annex.
• 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 remove any safety signs, stickers or labels from the
device. Keep all safety signs, stickers and labels in legible
condition.
• Before starting any internal work on the device, discharge
the EMCfilters, e.g. using load resistors.
• Only transport the device in an upright position.
Intended use
The desiccant dehumidifiers of the TTRseries are only to be
used for dehumidifying atmospheric air. Any other use possibly
exceeding the intended purpose is considered to be improper
use.
Intended use comprises:
• observing all the information in the instructions
• compliance with the inspection and maintenance tasks
• observing the permissible operating and surrounding
conditions according to the technical data (see Technical
annex)
The following minimum requirements must be met:
• permissible ambient temperature: -20°C to +40°C
• relative humidity: max. 95%RH non-condensing
After consultation with Trotec other operating conditions are
possible with respectively modified versions.

3 EN
desiccant dehumidifier TTR 5200 / TTR 6600 / TTR 8200
Improper use
• Dehumidifiers are not suited for the installation on or the
intake of fluids, e.g. from filled tanks or tubs, flooded
installation areas or the like.
• If supplying the system with contaminated air, the
"harmful influences on rotors" must be observed!
• Do not expose the device to the weather without suitable
protection.
• Any unauthorised modifications, alterations or structural
changes to the device are forbidden.
• Any operation other than as described in this manual is
prohibited. Non-observance renders all claims for liability
and guarantee null and void.
Personnel qualifications
People who use this device must:
• be aware of the dangers that occur when working with
electric devices in damp areas.
• have read and understood the instructions, especially the
Safety chapter.
The following applies to the staff categories stated below:
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.
Personnel training
• Only trained and instructed personnel may work at or with
the dehumidifier – observe the personnel qualifications.
• The responsibilities of the personnel for the following tasks
must be clearly defined:
– set-up and assembly
– installation
– start-up and operation
– maintenance and repair
• The control unit may only be operated by instructed
personnel.
Personal protective equipment
Wear hearing protection
Wear hearing protection when standing near the
running device.
Wear protective gloves
For start-up, maintenance and troubleshooting always
wear suitable protective gloves.
Wear foot protection
For transportation, start-up, maintenance and
troubleshooting always wear suitable foot protection.
Residual risks
Warning of electrical voltage
Work on the electrical components must only be
carried out by a qualified electrician!
Warning of electrical voltage
Make sure to de-energize the device before starting
work on electrical components.
Set the main switch to the 0position or pull the mains
plug (if any) from the mains socket.
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.

EN 4
desiccant dehumidifier TTR 5200 / TTR 6600 / TTR 8200
Caution
Only use residual current devices sensitive to all types
of current (type B or B+). The integrated EMC filters
can lead to instantaneously tripped RCDs.
Use residual current devices with a minimum triggering
level of > 300 mA and delayed tripping (type K).
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.
Note
Dirt accumulating inside the rotor can substantially
reduce the dehumidification performance or damage
the rotor beyond repair.
Supplying the system with contaminated air might
damage the rotor. Observe the information regarding
"Harmful influences on rotors".
Note
After a power failure the device will restart
automatically provided that it was not switched off in
the meantime. This behaviour is desired and necessary
to ensure operation with little supervision.
Behaviour in the event of an emergency
1. Switch off the device.
2. In an emergency, disconnect the device from the mains
feed-in: Hold onto the mains plug while pulling the power
cable out of the mains socket.
3. Do not reconnect a defective device to the mains.
Information about the device
General description
Dehumidifiers operating on the desiccant principle are used to
tackle drying tasks in the field of process engineering, air-
conditioning, on construction sites and for the dehumidification
of production and storage facilities, where a particularly low
humidity level is required over a broad temperature range.
The desiccation technique enables the safe and economic
operation even at low operating temperatures.
Design
The basic device consists of the following components:
• fans for air transport
• air filters behind every air inlet
• separate sectors for process air (to be dehumidified) and
regeneration air (humid exhaust air)
• purging sector for heat recovery
• rotor desiccant wheel for the dehumidification with silica
gel
• drive unit with gear motor, toothed belt pulley and toothed
belt
• heater battery for heating regeneration air
• Depending on the selected options further components are
possible (see Technical annex).
During dehumidification the desiccant wheel turns continuously
at a low speed (depending on the configuration 2 to 40rotations
per hour).
Via the sectors the desiccant wheel is simultaneously charged
with the process and regeneration air so it can constantly
absorb and release moisture.
Process air
The air to be dehumidified is sucked in by means of a fan. The
process air(4) flows through the desiccant wheel's
dehumidification sector(1).
In doing so, the contained moisture is withdrawn by the sorbent
(silica gel) and retained (desiccation). Due to physical processes
the temperature of the dry air(6) increases. Later the dried air
flows towards the dry air outlet.

5 EN
desiccant dehumidifier TTR 5200 / TTR 6600 / TTR 8200
Regeneration air
The regeneration air(5) is also sucked in with its own fan and
guided through the purging sector(3). During dehumidification
the desiccant wheel warms up as a result of the released
desiccation heat and the regeneration heat. The purging
sector(3) serves the purpose of heat recovery and for cooling
the desiccant wheel, leading to a reduced energy input and
improvement of the dehumidification performance – especially
at lower dew points. Whilst flowing through the heater
battery(7) the air is heated to approx. 100°C to 140°C
(depending on the intake temperature) and at the same time the
relative humidity is extremely reduced.
In passing through the regeneration sector(2), the thusly
prepared air now again absorbs the moisture retained by the
silica gel (desorption). Then the extremely humid regeneration
air(8) is discharged to the outside via the humid air outlet.
Schematic diagram
No. Designation
1 Dehumidification sector
2 Regeneration sector
3 Purging sector
4 Process air inlet
5 Regeneration air inlet
6 Dry air outlet
7 Heater battery
8 Humid air outlet (regeneration air)
Design configuration and components
rotor
The desiccant dehumidifier works with a desiccant wheel (rotor
A) which is composed of layers of smooth and corrugated non-
woven fabric with chemically bonded silica gel. Thus created is
a honeycomb structure with a large number of axial air ducts
with a large surface and direct connection to the inner pore
structure of the silica gel.
On account of the desiccant wheel's good mechanical and
physical properties no silica gel is discharged. It may be
supplied with saturated air with a relative humidity of up to
100% but not with water drops. The rotor is incombustible.
Rotor drive
The rotor is driven by an electric gear motor.
The power is transmitted by means of synchronized pulley and
timing belt.
Rotor rotation control
The device is equipped with a rotation control for an early
recognition of a possible rotor standstill.
Rotor bearing
The rotor is mounted on a stainless steel axle with
maintenance-free plain bearing bushes.
Rotor sealing
An automatically clearance-compensating gasket system seals
the rotor and the individual air sectors against one another.
Filter
Air filters are located in each individual air inlet – depending on
the field of application designed either as coarse or fine filter for
removing the dust in the air currents.
Fans
Used are radial fans or mixed-flow fans with energy-saving EC
motors. For an easy adjustment of the volumetric flow rates a
potentiometer is located behind the front cover. Therefore, the
fan speed for process air and regeneration air can be adjusted
according to the specifications. Hence, additional throttle valves
in the air lines are rendered redundant.

EN 6
desiccant dehumidifier TTR 5200 / TTR 6600 / TTR 8200
Regeneration air heater
Heating the regeneration air is effected by means of electric
heater batteries consisting of individual resistance heating
elements. Depending on the dehumidifier model and size of the
heater these can be designed as single- or multi-stage versions.
The regeneration temperature is regulated by a thermostatic
two-step control.
Safety temperature monitors(STW) measure both the
regeneration exhaust air temperature(RAL) and the
regeneration air temperature heating(RHZ). Primarily the
regulation is geared to a preferably constant RHZ. With a
decreasing moisture load however RAL might positively rocket,
so that the heating is down-regulated before reaching the RHZ.
Achieved in this way is an optimum performance adjustment of
the regeneration energy to the operating point.
Safety components
In order to protect the basic device from inadmissible
temperatures, it comes equipped with the following safety
components:
• a differential pressure switch (ΔP switch) to monitor the air
flow direction and the flow rate of the regeneration air
• a safety temperature limiter (STB RHZ) to monitor the max.
permissible temperature after heating (thermostat
maximum)
• a safety temperature limiter (STB RAL) as rotation control
for the rotor; it is situated in the exhaust air flow and
tripped by an inadmissible temperature rise resulting from
rotor standstill
• Depending on the selected options further components are
possible (see Technical annex).
Note
If a safety component is tripped, the device will be
switched off (STOP), but the overrun will remain
active.
Wait until the entire rundown period has lapsed before
accessing internal parts of the device.
Electrical system
The entire switching and control technology is located in the
integrated electrical control box on the dryer housing. The
electrical control box is designed for a high safety standard with
protection type IP53 (see Technical annex).
Depending on the model, the terminals for remote monitoring
and control can either be accessed via the front cover or the
cover of the control box. This is also the place to access the
reset buttons of the safety temperature limiters and the
potentiometers for fan regulation. The cable gland for the mains
feed-in is located at the side of the device. The power supply is
connected directly to the terminals of the emergency stop main
switch.
Housing
Depending on the model the housing of the dehumidifier is
made of galvanized sheet steel or stainless steel sheet.
Options
There are additional options available for the desiccant
dehumidifiers of the "TTR..." series (see also chapter "Options"
in these instructions).

7 EN
desiccant dehumidifier TTR 5200 / TTR 6600 / TTR 8200
Types of application
Key for exemplary types of application:
regeneration air intake (19)
humid air discharge (18)
process air (11)
dry air (17)
Circulating air drying for indoor installation
The device is positioned in the room to be dehumidified.
• The device operates in recirculation mode.
• The air transport line for the regeneration air inlet(19) is
to be led outside.
• The air transport line for the humid air outlet
(regeneration air(18)) is to be led outside.
Example 1: Circulating air drying for indoor installation
TTR
Pressure-neutral
dual air circuits
inside the device
Circulating air for drying outdoor installation
• The air transport line for the process air inlet(17) is led
into the room to be dried in order to take in the humid
air from the room.
• The air transport line for the dry air outlet(11) is led into
the room in order to feed dry air into it.
Example 2: Circulating air drying for outdoor installation
TTR
Pressure-neutral
dual air circuits
inside the device
ΔP=0
Ventilation mode for outdoor installation
• The air transport line for the dry air outlet(11) is led into
the room to be dehumidified in order to feed dry air into
it.
Example 3: Ventilation mode for outdoor installation
TTR
excess pressure
P+
P-
ΔP

EN 8
desiccant dehumidifier TTR 5200 / TTR 6600 / TTR 8200
Device depiction
9
10
11
12
13
14
11
15
16
17
18
19
20
21
No. Designation
9 Front cover (hinged)
10 Air filter access and maintenance doors
11 Dry air outlet with connection for an air transport line
12 Forklift pockets
13 Main switch with emergency stop function
14 Cable gland for mains cable (on site)
15 Control panel
16 Electrical control box cover
17 Process air inlet with connection for an air transport
line
18 Humid air outlet (regeneration air) with connection for
an air transport line
19 Regeneration air inlet with connection for an air
transport line
20 Control box ventilation system incl. air filter(s)
21 Cable inlet for control lines
Product labelling
For an unmistakable identification, the desiccant dehumidifier is
provided with a nameplate.
The nameplate is located inside the control box and in the area
of the cable inlet.
The nameplate bears a CEmark.
22
23
24
25
26
27
28
29
30
31
32
33
Key
The illustration features the nameplate of a TTR5200 by way of
example. The device-specific information and technical data
differ depending on the model and the selected options (see
Technical annex).
No. Designation Unit
22 Type or device name –
23 Trotec item no. –
24 Dehumidification capacity [kg/h]
@ 20°C/ 60%RH
25 Power connection –
26 Power consumption P= [kW]
I= [A]
@400V
27 Mains supply [A]
28 Operating range [°C]
29 Dry air volume [m3/h]/ [Pa]
30 Regeneration air volume [m3/h]/ [Pa]
31 Weight [kg]
32 Version –
33 Serial number –

9 EN
desiccant dehumidifier TTR 5200 / TTR 6600 / TTR 8200
Transport and installation
Warning
Risk of severe injuries due to falling device.
The device may only be lifted by use of the forklift
pockets or lifting straps. Pipe sockets or other
attachment parts must not be used as lifting points!
The carrying capacity of the lifting gear must be
suitable for the weight of the device (see Technical
annex).
Optionally the device is delivered with a transport frame incl.
crane lifting lugs with holes for crane eyes or similar (see
Technical annex).
The following should be observed before transporting the device
using lifting gear:
Warning
Risk of death due to 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.
Installing the device
• Position the device on firm, dry and level ground.
Depending on the floor load capacity a panel for weight
distribution is to be provided. A proper foundation is not
necessary.
– Avoid slippery and oscillating ground.
– Position the device allowing a sufficient distance for air
inlet and outlet and for connecting the air transport
lines.
– Make sure there is enough space to operate and
maintain the device (see Technical annex).
• Only place the device under a roof. On request devices
with a higher type of protection are available for outdoor
installation. Make sure that no water can reach the device
interior via the air inlet and outlet openings. If required,
connect an air transport line to minimize the risk.
Optionally the device is delivered with weather protection
equipment. Do not expose the device to the weather
without this weather protection equipment.
• Ensure a sufficient distance between humid air outlet and
air inlet. In case of direct-intake devices the distance
between humid air outlet and the suction nozzles should
amount to at least 2m to prevent the humid exhaust air
from being sucked right back in.
• The air transport lines must be designed for the available
static compression of the fans (see Technical annex).
• The regeneration exhaust air line(C) must be laid with a
slight decline (min. 1.5%) so that possibly accumulating
condensate cannot flow back into the device or obstruct
the air flow. If an incline cannot be avoided, it is necessary
to deliberately create a nadir (lowest point) for draining
(e.g. using a syphon).
Inserting the air filter
Note
To avoid damages to the device, do not operate the
device without inserted air filters!
Prior to installation and switching the device on, check
whether all air filters are inserted.
Information regarding the air filter installation and filter change
can be found in the Maintenance chapter.

EN 10
desiccant dehumidifier TTR 5200 / TTR 6600 / TTR 8200
Schematic diagram
A
C
B
D
Optionally, a mirror-inverted assembly is also possible.
D
No. Designation
A Process air inlet
B Regeneration air inlet
C Humid air outlet (regeneration air)
D Dry air outlet
Assembly and installation
Power connection
Warning of electrical voltage
Work on the electrical components must only be
carried out by a qualified electrician!
The illustrations below feature the series from the TTR800
through to the TTR3700 and can be used exemplarily for all
device versions of the TTRseries. The mains supply terminals
are situated directly at the main switch behind the main switch
cover.
1. Loosen the two screws(34) of the front cover.
34
35
2. Slightly lift the front cover and open it.
3. Loosen the screws(35) of the electrical control box cover.
4. Remove the electrical control box cover either by pulling it
forwards or by lifting it.

11 EN
desiccant dehumidifier TTR 5200 / TTR 6600 / TTR 8200
5. Guide your mains cable through the cable gland at the
device and connect it to the power supply terminals. To
connect the device please observe the wiring diagram in
the technical annex. The phase sequence can be chosen
freely.
6. Fix the cable, screw down the cable gland and observe the
strain relief.
In the device version shown below, the mains supply terminals
are also situated directly at the main switch behind the main
switch cover. The illustrations below feature the series from the
TTR5200 through to the TTR13500:
1. Set the main switch to 0.
2. Loosen the screws and open the cover.
ðThe cover can only be opened if the main switch is set
precisely to the 0position!
3. Guide the mains cable through the cable gland at the
device and connect it to the power supply terminals. To
connect the device please observe the wiring diagram in
the technical annex. The phase sequence can be chosen
freely.
4. Fix the cable, screw down the cable gland and observe the
strain relief.
Connecting the control lines
Remote ON/OFF
If you want to operate the device optionally via remote mode,
e.g. from a remote control centre or factory master control
system, connect the external switching contact (N/Ocontact) to
the respective terminals. The control voltage amounts to 24V
DC (for detailed information please refer to the wiring diagrams
in the technical annex).
Control via external hygrostat (%RH)
You can control the device via an external hygrostat (option).
The control voltage amounts to 24VDC.
The external hygrostat is to be connected to the terminal strip in
accordance with the wiring diagram (see Technical annex).
If the relative humidity level falls below the set target value, the
contact closes and terminates the dehumidification process.
The illustrations below show the terminals for remote switch-on
and relays with potential-free contacts:

EN 12
desiccant dehumidifier TTR 5200 / TTR 6600 / TTR 8200
Ventilation mode process air
Select the operating mode Ventilation mode process air if
constant air movement is also required at times without the
need for drying. If so, reposition the respective jumper (blue) of
the corresponding terminals (for detailed information please
refer to the wiring diagrams in the technical annex).
The process air fan keeps running even if the hygrostat
switches off and the external contact of the hygrostat is opened.
Hygrostat and fan operation are only switches off when
switching of the device (STOP), the fan will be switched off at
the end of the rundown period.
You can always change back to the normal dehumidification
operating mode by replugging the jumper.
Ventilation mode process air can be activated both when in on-
site or remote mode.
Remote signalling contacts
Remote signalling is effected by means of potential-free
changeover contacts that can be tapped directly at the
corresponding relays.
1. BETRIEB/ OPERATION
2. STÖRUNG/ FAULT
3. FILTER/ WARNING
These remote signalling contacts correlate with the lamps on
the control panel (see description in the Operation chapter).
For the correct assignment observe the wiring diagrams in the
technical annex.
Inserting the air filter
Check whether all air filters are inserted before switching the
device on for the first time. The illustrations below are
schematic representations:
1. Open the left door of the control cabinet.
2. Check whether the correct filters have been inserted in
both the process air inlet and the regeneration air inlet (see
Technical annex).
3. Check whether the filter for the control box ventilation
system has been inserted:

13 EN
desiccant dehumidifier TTR 5200 / TTR 6600 / TTR 8200
Start-up
Requirements
• Check whether all air filters have been inserted properly.
• Check whether all doors, flaps and covers are closed or
screwed in place.
• Check whether all air transport lines have been connected
and screwed down properly and whether they are secured
by means of tension belts.
• Check whether all air transport routes are clear and free
from foreign objects or obstacles.
• Check the permissible operating conditions according to
the technical data.
• Make the basic settings while observing the information
contained in the Technical annex if applicable.
Warning of electrical voltage
Work on the electrical components must only be
carried out by a qualified electrician!
Make sure that the electric installation complies with
the technical documentation.
Ensure the continuity of the protective conductor
system.
Initial start-up
If the "Flowmatic S" option is installed, continue with step4.
For an ideal operation of the device the regeneration air flow
must be adjusted according to the technical data.
The potentiometers can be accessed via the front cover:
– target value fan speed process air(Proz.) and
– target value fan speed regeneration air(Reg.) for adjusting the
air volume via the fan speed.
For adjustment work, measurements or the like, which have to
be carried out during operation, one must on principle switch
over to manual operation (ON-SITE)!
1. Turn the selection switch to positionI.
2. Open the front cover(9).
ðThe two potentiometers are located behind the front
cover on the right-hand side:
– target value fan speed process air(Proz.) and
– target value fan speed regeneration air(Reg.) for
adjusting the air volume according to the information
provided in the technical annex.
3. Adjust the regeneration air volume in ON-SITE mode.
This also allows an adjustment to the on-site air transport
lines for optimum operation.
4. The proceed as with the normal start-up.

EN 14
desiccant dehumidifier TTR 5200 / TTR 6600 / TTR 8200
Operation
36
41 37
39 40 38
13
No. Designation
13 Main switch with emergency stop function
0: The device is switched off.
I: The device is switched on.
36 BEREIT / STAND BY lamp
Indicates operational readiness for REMOTE operation:
- mains voltage present
- selection switch in positionII – REMOTE OPERATION
- REMOTE-ON not yet activated
37 FILTER lamp
Indicates the insufficient air flow rate of one or more air
filters. The differential pressure controllers monitor the air
flow rate of the filters and so report a dirty filter at an early
stage.
Replace a dirty filter in due time to prevent an impairment
of the device functions.
38 STÖRUNG / FAULT lamp and RESET button
Collective fault message with device switch-off (STOP)
tripped by
- a safety temperature limiter (STB RHZ) to monitor the
max. permissible temperature after heating (thermostat
maximum)
- a safety temperature limiter (STB RAL) as rotation control
for the rotor; it is situated in the exhaust air flow and
tripped by an inadmissible temperature rise resulting from
rotor standstill
- a differential pressure switch (ΔP switch) to monitor the
air flow direction and the flow rate of the regeneration air
- phase error, check the feed-in and fusing
- motor fault of the fans regeneration air or process air
- possibly collective fault messages of additional options
(see Technical annex)
No. Designation
39 BETRIEB / OPERATION lamp
Indicates the start-up of the device after switching it on via
- selection switch to positionI
or - selection switch to positionII and remote-ON contact
closed
40 Selection switch ON-SITE/REMOTE OPERATION
I – 0 – II
I: ON-SITE OPERATION
II: REMOTE OPERATION
0: Control OFF (STOP)
41 NACHLAUF / RUN ON lamp
Indicates the rundown operation of the device at operating
temperature after switching off the control voltage.
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.
Warning
In order to prevent a defect of the heater battery
due to heat accumulation or an unnecessary
tripping of the safety temperature limiterSTB when
switching off the unit, the regeneration air blower
is provided with a temperature-controlled rundown
period of approx. 5minutes.
Wait until the entire rundown period has lapsed before
accessing internal parts of the device.
For normal switch-off (STOP) please use the selection switch
ON-SITE/REMOTE OPERATION I–0–II(40), which initiates the
rundown function (NACHLAUF/ RUNON lamp(41) illuminated).
Only disconnect the device from the mains for transport or
storage via the main switch at the end of the rundown period.
Switching the device on
üThe device is connected to the properly fused feed-in.
1. Turn the main switch(13) to positionI.
2. Select the desired operating mode via the selection
switchI–0–II(40):
ðA) on-site operationI
Turn the selection switch to positionI: the BETRIEB/
OPERATION lamp(39) is illuminated – the device starts
up.
ðB) remote operationII
Turn the selection switch to positionII: the BEREIT/
STANDBY lamp(36) is illuminated until the REMOTE-ON
contact is activated – as soon as the REMOTE-ON
contact has been activated, the BETRIEB/ OPERATION
lamp(39) will be illuminated – the device starts up.

15 EN
desiccant dehumidifier TTR 5200 / TTR 6600 / TTR 8200
Note
In order to attain the full dehumidification performance
and to prevent damages due to an insufficient
regeneration air flow, the air volumes specified in the
technical annex must be observed.
Dirty air filters reduce the volumetric flow rate and
must be replaced in due time.
Switching the device off (STOP)
1. Turn the selection switch(40) to position0 or open the
REMOTE-ON contact.
ðThe BETRIEB/ OPERATION lamp(39) goes out.
ðThe NACHLAUF/ RUN ON lamp(41) is illuminated.
ðThe device switches over to rundown operation.
Rundown operation
In order to discharge the trapped heat from the heater, the
regeneration air blower will continue to operate for approx.
5min (temperature-controlled). The control unit remains active.
During rundown the device may be restarted at any time.
The fans start up smoothly, delayed by approx. 20s the device
switches into normal operation.
Upon expiry of the rundown period the regeneration air blower
stops, the indicator lights go out.
Shutdown
For a complete switch-off, e.g. for transport or maintenance
activities, switch the emergency stop main switch(13) to the
0position at the end of the rundown period.
Storage
• Store the cleaned device in a dry location and protect it
against dust.
• Before restarting the device, check the condition of the
power cable. If you are doubting its perfect condition, have
the cable repaired or call the customer service.
• Have the device checked once a year by an electrically
skilled person at any rate.
Errors and faults
The fault recognition switches the device off (STOP), only the
rundown operation remains active.
After having eliminated the cause of the fault, the fault message
of the STB or rather the STB is to be reset via the corresponding
reset button.
1. STB RHZ
2. STB RAL
3. - possibly reset button for additional options
(see Technical annex)
1. Open the front cover and remove the respective cover of
the reset buttons.
2. Press the corresponding reset button and reattach the
cover.
3. Then press the STÖRUNG / FAULT – RESET button(38) to
acknowledge the STB faults or the ΔP fault message.

EN 16
desiccant dehumidifier TTR 5200 / TTR 6600 / TTR 8200
Troubleshooting
Fault Cause of error Measure
"Fault" indicator light illuminated • rotation control (STB RAL) responds
• rotor at a standstill
• process air flow interrupted
• regeneration air temperature increased
inadmissibly
• Check thermostat setting.
• Check rotor drive and toothed belt for
proper functioning, repair if necessary.
• Check process air fan for proper
functioning.
• Check throttle valves, if any.
• Press reset button.
• maximum thermostat (STB RHZ) responds
• regeneration air flow interrupted
• regeneration air temperature increased
inadmissibly
• Check thermostat setting.
• Check regeneration air fan for proper
functioning.
• Check throttle valves, if any.
• Check filters.
• Press reset button.
• differential pressure switch for
regeneration air does not switch
• Check hose connection.
• Check setting, correct if necessary.
• Check pressure switch for proper
functioning.
• fan does not rotate/fans do not rotate • See below.
Insufficient dehumidification
performance
• air volumes incorrect • Calibrate air volumes.
• Check filters.
• Check housing (panels/doors) for air leaks.
• Check radial and circumferential seal at
the rotor.
• Check throttle valves, if any.
• Check rotational direction of fans.
• regeneration heating failed • Check heater for proper functioning,
measure temperatures, have it replaced if
necessary.
• Check fuses, replace them if necessary.
• Check relays, contactors, have them
replaced if necessary.
• Check control thermostat setting.
• filter dirty • Change filter.
• process air flow interrupted • Check process air fan for proper
functioning, have it replaced if necessary.
• Check air passages, flaps.
• rotor is not turning • Check belt/chain tension.
• Check drive motor for proper functioning,
have it replaced if necessary.
• Check toothed belt pulley for tight fit,
fasten it if necessary.
• incorrect rotor rotation direction • Correct rotational direction.

17 EN
desiccant dehumidifier TTR 5200 / TTR 6600 / TTR 8200
Fault Cause of error Measure
Insufficient dehumidification
performance
• seals are not seated properly or are
defective
• Correct seal position (particularly radial
seals) or replace them.
• air leaks at nozzles and fans • Eliminate air leaks.
• regeneration air flow interrupted • Check regeneration air fan for proper
functioning.
• Check air passages, flaps.
• rotor defective • Have rotor replaced.
Fans do not rotate • electrical supply interrupted • Check and restore connection.
• phase missing • Check phases.
• impeller not fastened • Fasten impeller.
• motor defective • Have motor replaced.
Metallic sounds, rattling • fan impeller not fastened • Check process air and regeneration air
fan, have them replaced if necessary.
• Fasten impeller.
• toothed belt or chain of rotor drive slips • Check toothed belt/chain tension.
• Check toothed washer/pinion and carrier
(along rotor circumference) for damage.
• Check rotor for smooth running, replace
bearing if necessary.
Warning
This device can be dangerous if it is repaired by
unqualified persons in an improper way. Any faults the
elimination of which requires mechanical or electrical
intervention may only by carried out by qualified
specialists or service staff.
If the fault cannot be rectified despite following the
checklist above, please contact one of our subsidiaries
or our headquarters.

EN 18
desiccant dehumidifier TTR 5200 / TTR 6600 / TTR 8200
Maintenance
Activities required before starting maintenance
Warning of electrical voltage
Before starting any internal work on the device, switch
the main switch to position0. For disassembly a cool-
down period of at least 30minutes should be
observed. Before starting any internal work, check that
all motors and fans are at a standstill and that the
device has cooled down.
Activities required before starting maintenance
• For adjustment work, measurements or the like which
have to be carried out during operation, always switch over
to manual operation (ON-SITE).
• If the dehumidifier was previously operated, one is to wait
for the end of the rundown period before switching the
device off and for the end of the cool-down period of at
least 30minutes before disassembly.
• Secure all plant sections and operating media (such as
vapour) up- and downstream the dehumidifier against
inadvertent start-up.
• For all maintenance, inspection and repair work, de-
energize the dehumidifier and secure the main switch
against inadvertent restart.
• Attach a warning sign and secure the device against
restart.
Notes on maintenance and repair activities
• Perform the stipulated adjustment, maintenance and
inspection work in due time.
• Inform the operating personnel before starting any
maintenance and repair work.
• Upon completion of the maintenance work check all
loosened screwed connections for tight fit.
• Upon completion of the maintenance work check all safety
devices for proper functioning.
Air filter change
The filter change intervals depend on the degree of air pollution
and the filter quality. Dirty filters impair the performance ability
of the dehumidifier.
A filter change is required at the latest when the filter change
indicator FILTER on the control panel lights up.
Air filters for air inlet, dry air and regeneration air
1. Open the door for accessing the air filter behind the air
inlets. In case of a standard version this means the left
door of the cabinet; if mirror-inverted, use the right door.
2. Pull the filters for the individual air inlet openings out
towards the front.
3. Change the filters as needed.
4. Then close the cabinet door again.

19 EN
desiccant dehumidifier TTR 5200 / TTR 6600 / TTR 8200
Air filter of the electrical control box
Check the air filter of the electrical control box once a month
and replace the filter mat as needed.
1. To do so, open the filter flap at the electrical control box.
2. If it is dirty, replace the filter. Then close the flap again
until it snaps into place.