TTR 6600 - Humidifier TROTEC - Free user manual and instructions

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Brand: TROTEC
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Brand : TROTEC

Model : TTR 6600

Category : Humidifier

Download the instructions for your Humidifier in PDF format for free! Find your manual TTR 6600 - TROTEC and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. TTR 6600 by TROTEC.

USER MANUAL TTR 6600 TROTEC

desiccant dehumidifier TTR 5200 / TTR 6600 / TTR 8200 Table of contents Notes regarding the instructions p. 1
Safety p. 2
Information about the device p. 4
Transport and installation p. 9
Assembly and installation p. 10
Start-up p. 13
Operation p. 14
Errors and faults p. 15
Maintenance p. 18
Harmful influences on rotors p. 21
Disposal p. 22
Options p. 23
Technical annex 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 EUdeclaration 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=36753EN 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. p. 32

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 EMCfilters, e.g. using load resistors.

Only transport the device in an upright position. Intended use The desiccant dehumidifiers of the TTRseries 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 0position 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 40rotations 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

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 CEmark.

Key The illustration features the nameplate of a TTR5200 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

24 Dehumidification capacity [kg/h] @ 20°C/ 60%RH 25 Power connection

26 Power consumption P= [kW] I= [A] @400V 27 Mains supply [A] 28 Operating range [°C] 29 Dry air volume [m

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 2m 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

Optionally, a mirror-inverted assembly is also possible.

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 TTR800 through to the TTR3700 and can be used exemplarily for all device versions of the TTRseries. 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.

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 TTR5200 through to the TTR13500:

1. Set the main switch to 0.

2. Loosen the screws and open the cover.

ð The cover can only be opened if the main switch is set precisely to the 0position!

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/Ocontact) to the respective terminals. The control voltage amounts to 24V 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 24VDC. 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.

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 step4. 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 positionI.

2. Open the front cover(9).

ð The 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

Main switch with emergency stop function 0: The device is switched off. I: The device is switched on.

BEREIT / STAND BY lamp Indicates operational readiness for REMOTE operation: - mains voltage present - selection switch in positionII – REMOTE OPERATION - REMOTE-ON not yet activated

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.

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

BETRIEB / OPERATION lamp Indicates the start-up of the device after switching it on via - selection switch to positionI or - selection switch to positionII and remote-ON contact closed

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 limiterSTB when switching off the unit, the regeneration air blower is provided with a temperature-controlled rundown period of approx. 5minutes. 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/ RUNON 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 ü The device is connected to the properly fused feed-in.

1. Turn the main switch(13) to positionI.

2. Select the desired operating mode via the selection

switchI–0–II(40): ð A) on-site operationI Turn the selection switch to positionI: the BETRIEB/ OPERATION lamp(39) is illuminated – the device starts up. ð B) remote operationII Turn the selection switch to positionII: the BEREIT/ STANDBY 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 position0 or open the

REMOTE-ON contact. ð The BETRIEB/ OPERATION lamp(39) goes out. ð The NACHLAUF/ RUN ON lamp(41) is illuminated. ð The 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. 5min (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. 20s 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 0position 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.

3. - possibly reset button for additional options

(see Technical annex)

1. Open the front cover and remove the respective cover of

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.

regeneration air flow interrupted

regeneration air temperature increased inadmissibly

Check thermostat setting.

Check regeneration air fan for proper functioning.

Check throttle valves, if any.

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

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.

motor defective • Have motor replaced. Metallic sounds, rattling • fan impeller not fastened • Check process air and regeneration air fan, have them replaced if necessary.

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 position0. For disassembly a cool- down period of at least 30minutes 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 30minutes 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

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.EN 20 desiccant dehumidifier TTR 5200 / TTR 6600 / TTR 8200 General maintenance Safe operation of the device requires the components listed below to be checked and cleaned after 12 months at the latest or after every 4000 operating hours as well as all damaged components to be replaced. Furthermore, an electrical safety test must be conducted. If the device is used in rough surroundings with an increased dust exposure, we recommend performing a visual inspection during every air filter change. Component Activity Comments Replacement/ interval Differential pressure switch Function test Switching point As required if defective Gear motor Function test 4,000 h Solid-state relay SSR Function test Disconnection As required Power relay Function test Disconnection As required Emergency stop main switch Function test Disconnection of all phases As required Regeneration heating Function test Measure currents, clean surface if necessary As required Safety temperature limiter Function test Switching point, clean capillary tube As required Temperature probe Function test Check signals, clean probe As required Temperature monitor Function test Switching point, clean capillary tube As required Thermal switch NO 60 °C Function test Switching point As required Time relay Function test Time setting As required Air filter Visual inspection Check condition, replace if necessary Filter indication Filter fan Visual inspection Filter change, clean impeller As required Radial seals, desiccant wheel Visual inspection Check condition, replace if necessary As required Control cabinet Visual inspection Clean, blow out dust if necessary As required Desiccant wheel Visual inspection Obstructions, check surfaces for damage, replace if necessary As required Door seals Visual inspection Check condition, replace if necessary As required Circumferential seals, desiccant wheel Visual inspection Check condition, replace if necessary As required Regeneration air fan Visual inspection Clean impeller, check speed adjustment, measure currents 4,000 h Dry air fan Visual inspection Clean impeller, check speed adjustment, measure currents 4,000 h Toothed belt Visual inspection Check tension and condition, replace if necessary As required Screw terminal connections Fit Retighten if necessary As required Toothed belt pulley Fit Check connection to gear shaft As required Care Do not use a cleaning agents containing solvents to avoid damage to the surfaces and operating elements of the devices. Clean the surfaces and operating elements of the devices with a damp cloth and solvent-free cleaning agents only.21 EN desiccant dehumidifier TTR 5200 / TTR 6600 / TTR 8200 Harmful influences on rotors Some of the substances and compounds listed below are typical examples for substances dissolving the honeycombed silica gel rotors or else negatively affecting the dehumidification performance. The sorption rotor should not be charged with air which is contaminated with the following or similar substances. Even minor concentrations in the air can have lasting harmful effects on the rotor material and the sorption capacity. The listed substances remain in the rotor material or the rotor elements and can bring about the following effects:

Reduced performance owing to the clogging of the silica gel's pores

Reduced performance owing to the chemical reaction with the silica gel A) Inorganic substances (examples) No. Substances Chemical formula Effects 1 lithium chloride LiCl reduced productivity of the silica gel

2 sodium hydroxide NaOH destruction of the silica gel structure 3 potassium hydroxide KOH destruction of the silica gel structure 4 sodium chloride NaCl reduced productivity of the silica gel

5 potassium chloride KCl reduced productivity of the silica gel