TFT ADS150E User manual

© 2016 TFT srl STDENR01ADS0103E rev.1
Dehumidifiers
ADS150÷300E
Technical Manual
Units 230Vac-1Ph-50Hz

Pagina 2 di 27
ADS150÷300E-STD.EN-01 - Subject to change without notice TFT
Index
General information governance and security concepts .................................................................... 4
Warranty.......................................................................................................................................... 5
Copyright.......................................................................................................................................... 5
Unit Marking .................................................................................................................................... 6
Safety symbols used ......................................................................................................................... 7
Applicazioni...................................................................................................................................... 8
Principle of operation ....................................................................................................................... 8
Product Description.......................................................................................................................... 9
Structure.................................................................................................................................................................9
Rotor.......................................................................................................................................................................9
Transmission system ..........................................................................................................................................9
Bearings .............................................................................................................................................................9
Filter .......................................................................................................................................................................9
Ventilatore per l'aria di processo e rigenerazione.................................................................................................9
Battery heating reactivation rotor .........................................................................................................................9
Electrical panel .......................................................................................................................................................9
Ability to operate .................................................................................................................................................10
Installation ..................................................................................................................................... 11
Installation and location requirements................................................................................................................12
Connecting channels ............................................................................................................................................12
Specifications for the ejection channel moist air .............................................................................................12
Specifications for the input channel reactivation air .......................................................................................12
Specifications for the channels of the process air and dry in case the dehumidifier is installed inside the room
to be dehumidified...........................................................................................................................................12
Specifications for channels and process air dry if the dehumidifier is installed outside the room to be
dehumidified. ...................................................................................................................................................12
General Warnings ............................................................................................................................................12
First start-up................................................................................................................................... 14
Preliminary checks................................................................................................................................................14
Maintenance .................................................................................................................................. 15
Safety....................................................................................................................................................................15
Filters....................................................................................................................................................................15
Rotor.....................................................................................................................................................................15
Electric motors .....................................................................................................................................................15
Heating coil...........................................................................................................................................................16
Rotor drive belt ....................................................................................................................................................16
Gaskets.................................................................................................................................................................16
General survey on service intervals .....................................................................................................................16
Receiving and Inspection ................................................................................................................ 16
Storage .................................................................................................................................................................16
Unpacking.............................................................................................................................................................17

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ADS150÷300E-STD.EN-01 - Subject to change without notice TFT
Lifting and Handling .............................................................................................................................................17
Troubleshooting ............................................................................................................................. 18
Specifications ................................................................................................................................. 19
Technical data ......................................................................................................................................................19
Performance diagrams.........................................................................................................................................20
Dimensions...........................................................................................................................................................21
Respect Spaces For Installation............................................................................................................................22
Electrical Connections: Preliminary Safety Information ................................................................... 23
ELECTRICAL DATA.................................................................................................................................................23
HOW TO CONNECT THE POWER SUPPLY .............................................................................................................24
Wiring diagrams: ............................................................................................................................ 24

Pagina 4 di 27
ADS150÷300E-STD.EN-01 - Subject to change without notice TFT
General information governance and security concepts
Anyone who uses the dehumidifier ADS150÷300E should be provided with this manual and be
aware of the safety information contained herein.
Must operate the dehumidifier and perform maintenance only staff with adequate knowledge of
the dehumidifier.
Only authorized personnel to perform electrical installations can perform maintenance on electrical
components.
Repairs on electrical components should be performed by qualified personnel.
The dehumidifier can not be installed in areas where explosion-proof devices are required.
Disconnect electrical power to the dehumidifier from 'switch before opening any panel of the
dehumidifier.
Before performing any maintenance dehumidifier leave to cool at least 15 minutes after turning it
off.
The panels of the dehumidifier should be removed only to perform maintenance.
The dehumidifier can be installed only to dehumidify air at atmospheric pressure.
Do not leave the dehumidifier running without the filters at the air inlet.
Labels and signs must not be removed from the dehumidifier.
This manual should be kept near the dehumidifier and easily accessible.
The inspection and maintenance must be performed or adhered to.
Use only original spare parts.
Before any intervention that alters or modifies the dehumidifier must be requested specifically
authorized in writing by TFT.

Pagina 5 di 27
ADS150÷300E-STD.EN-01 - Subject to change without notice TFT
Warranty
The warranty period is valid from the date on which the unit is out of the factory, unless otherwise
specified in writing.
The warranty is exclusively limited to the repair or replacement –free of charge- of parts which are
acknowledged as defective by TFT due to defects in materials or manufacturing.
All warranty claims with proof of defect must be received within the applicable warranty period for
this warranty to be effective. Every claim must have the evidence that the unit is properly operated
under conditions of normal use in accordance with applicable safety and regulatory requirements.
All requests must specify the type of unit and the serial number. This information is printed on the
rating plate, see the paragraph “Marking Unit”.
Repairs or maintenance by non-qualified personnel will invalidate the warranty, as will the use of
non-approved spare parts. In order for the warranty to be valid, the customer must scrupulously
documented any repair and maintenance. Rivolgersi sempre a TFT per l’assistenza e le riparazioni.
TFT srl liability shall not include defects caused by inadequate maintenance or repairs or by incorrect
installation by the Buyer, or else by alterations made without TFT written approval.
Conformity with directives
The dehumidifier is in conformity with the essential safety requirements set the revised Machinery
Directive 2006/42/EC, the Low Voltage Directive (LVD) 2006/95/EC, the Electro Magnetic
Compatibility Directive (EMC) 2004/108/CE e the RoHS Directive 2011/65/EU.
The dehumidifier is produced by a company certificated ISO 9001:2008.
Copyright
The contents of this document may be changed in the future, without prior notice.
This manual contains proprietary information protected by copyright. It’s not allowed to copy
and/or to reproduce in whole or in a part the content of this manual without the written
authorization of TFT.

Pagina 6 di 27
ADS150÷300E-STD.EN-01 - Subject to change without notice TFT
Unit Marking
The marking of the unit with identification and CE is located on the rear side under the suction grille,
as shown in the figure below.

Pagina 7 di 27
ADS150÷300E-STD.EN-01 - Subject to change without notice TFT
Safety symbols used
GENERAL DANGER
Observe all signs placed alongside the pictogram. Failure to observe these instructions may lead to situations of
risk with possible damage to the health of the operator and the user in general.
ELECTRICAL HAZARD
Observe all signs placed alongside the pictogram. The symbol indicates the components of the machine or in
this manual identifies actions that could generate electrical hazards.
MOVING PARTS
The symbol indicates the moving parts of the machine that may cause hazards.
HOT SURFACES
The symbol indicates the machine components with high surface temperature that may cause hazards.
CUTTING SURFACES
The symbol indicates the components or parts of the machine that the contact could cause cuts.
PROHIBITED ACCESS TO ELECTRICAL PANEL
The symbol indicates a prohibited access to the electrical panel or parts of an electrical nature, by personnel
not specifically trained to work on this type of equipment.
GROUND CONNECTION
The symbol identifies the point of the machine to the ground connection.
RECOVERABLE OR RECYCLABLE MATERIAL

Pagina 8 di 27
ADS150÷300E-STD.EN-01 - Subject to change without notice TFT
Applicazioni
The dehumidifier ADS150÷300E is of the absorption type, with the rotor of desiccant and has been
designed to dehumidify air at atmospheric pressure. The dehumidifier can be used to dehumidify air at
relative humidity up to 100% and temperature from -30°C to +40°C.
The applications are many and cover all segments, but here are some examples:
Moisture control in manufacturing processes.
Drying temperature sensitive products.
Maintaining proper humidity levels in warehouses.
Corrosion protection of plants and in general of ferrous materials.
Moisture control in museums and libraries.
Drying after flooding of properties and buildings.
Improvement of environmental conditions occur anywhere excessive moisture.
Principle of operation
The dehumidifier works by using an air flow; a part of the
air consists of the air to be dehumidified, another part -
of minor flow - is instead used to regenerate the
dehumidification rotor. A fan inside the dehumidifier
creates two air flows that pass through the rotor in
opposite directions. The air to be dehumidified - also
called "process air", passes through the desiccant rotor
impregnated with silica gel. Silica gel is a highly
hygroscopic material that absorbs water vapor from the air. During the crossing of the rotor, the air
transfers its moisture content to the rotor itself. The dehumidified air is then sent to the production
room or to the dehumidifying process. The dehumidification process can take place between
temperatures between -30°C and +40°C. During the process the rotor rotates very slowly and is
equipped with a transmission system with reduction gear and belt. The so-called "regeneration air", is
used by the system to remove the absorbed moisture and take it outside: it is heated by a battery
inside the dehumidifier, up to about + 80°C and crosses the rotor in the opposite direction from the
process air and submits it to an inverse process, for which the rotor transfers its moisture content and
its initial absorbing capacity is restored. The regeneration air is expelled lukewarm and humid and must
be sent to the treated environment.

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ADS150÷300E-STD.EN-01 - Subject to change without notice TFT
Product Description
The dehumidifier has been designed to meet the requirements of the degree of protection IP 54 of IEC.
Structure
The structure of the dehumidifier is made of steel and AluZink AISI_304 with simple panels. The top
panel can be removed for maintenance to electrical components and all internal mechanical parts. The
connections to the dehumidifier can be made with standard spiral ducts.
Rotor
The dehumidifier has a rotor made with desiccant material. The rotor has a honeycomb structure made
of corrugated and heat-resistant sheets that contain the silica gel desiccant, which creates a large
number of axial fluid threads and at the same time a high absorption surface in a small volume.
Furthermore, the rotor will not be damaged if the process fan stops due to an anomaly during
operation. The rotor is non-combustible and non-flammable.
Transmission system
A belt drive system controls the movement of the rotor. The belt exerts its pull on the outer edge of
the rotor and is driven by a pulley on the engine gearbox. A special device maintains the correct belt
tension to prevent slippage of the belt itself. The correct direction of rotation and the transmission can
be verified by opening the front panel.
Bearings
The rotor is provided with ball bearings. The rotor shaft is stainless steel.
Filter
The dehumidifier has one filter (G2), on the input process and regeneration air.
Ventilatore per l'aria di processo e rigenerazione
The fan is directly coupled to a single phase motor class IP55, ISO F, Class B. They are accessible for
maintenance by removing the inspectable upper panel.
Battery heating reactivation rotor
The battery power of regeneration is PTC (Positive Temperature Control), which eliminates the risk of
overheating and provides modulating control 50-100% of the performance of the dehumidifier, acting
on the air flow rate of reactivation.
Electrical panel
The electrical panel is located inside the unit. Switches and indicators are functioning outside of the
dehumidifier.

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ADS150÷300E-STD.EN-01 - Subject to change without notice TFT
Ability to operate
The operation selector placed outside of the dehumidifier allows the following modes of operation:
MAN dehumidifier in operation in continuous
AUTO dehumidifier controlled by a
humidistat or by an external signal
When the dehumidifier is turned off, wait at least 15 minutes before accessing the inside.

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ADS150÷300E-STD.EN-01 - Subject to change without notice TFT
Installation
GENERAL WARNINGS AND USE OF SYMBOLS
Before performing any kind of operation every trader must know perfectly the operation of the machine and
its controls and have read and understood the information contained in this manual.
All operations performed on the machine must be performed by qualified personnel in compliance with the
national legislation in force in the country of destination.
The installation and maintenance of the machine must be carried out according to national or local
regulations.
Do not approach and do not insert any objects into moving parts.
GREETINGS AND SECURITY WORKERS
The workplace of the operator must be kept clean, tidy and free from objects that might hinder movement. The
workplace must be adequately illuminated for operations envisaged. Insufficient or excessive lighting can be
hazardous.
Make sure that there is always a good ventilation of the work and that exhaust systems are always functional,
in very good condition and in compliance with the provisions laid down by law.
PROTECTIVE EQUIPMENT
Operators engaged in the installation and maintenance of the machine must wear the mandatory personal
protective equipment required by law listed below.
Protective footwear.
Eye protection.
Protective gloves.
Respiratory Protection.
Hearing protection.

Pagina 12 di 27
ADS150÷300E-STD.EN-01 - Subject to change without notice TFT
Installation and location requirements
The dehumidifier ADS150÷300E is designed to be installed inside a room, must be installed in a vertical
position and preferably secured to the floor.
For maintenance, filter replacement, etc. leave a space of access to 500mm. On the side of the dryer
inspected.
Connecting channels
The dehumidifier can be installed inside or outside the room to be dehumidified.
To improve the performance of the installation and should stave off the flow from the air intake.
Specifications for the ejection channel moist air
The wet air from the dehumidifier must be expelled outside. The channels must be as short as possible
to minimize the possibility of condensation of moist air within the channels. This channel should be
slightly sloped to prevent any return of condensation inside the dehumidifier. If the channel is very
long or moist air must be uphill, realize a drainage hole of 2-4 mm at the lowest point of the discharge
channel. It must be installed a damper air flow regulation. Protect the channel output with a grid.
Specifications for the input channel reactivation air
This channel should be as short as possible. To prevent the ingress of foreign bodies, protect the
entrance of the channel with a grid. It is not necessary to isolate the pipe, which can be tilted
downward. In some installations, the regeneration air can be sucked from the room where the
dehumidifier is installed and in this case it is not necessary any channel.
It is advisable to install a damper on the regeneration circuit to allow proper air flow calibration.
Specifications for the channels of the process air and dry in case the dehumidifier is installed
inside the room to be dehumidified.
In this case for the air intake process is not necessary the realization of no suction channel, it is only
required the installation of a protection grid. The dry air produced must be ducted for the distribution
of the dry air inside the local dehumidified.
Specifications for channels and process air dry if the dehumidifier is installed outside the room to be
dehumidified.
In this case, normally the inlet and outlet are channeled.
The dehumidifier sucks air dehumidified by the environment or by a system of pre-treatment of the air
(pre-cooling or pre-heating). The dry air produced can be sent or dehumidified environment to a
system of post-treatment.
A control damper can be installed to regulate the flow of dry air.
General Warnings
The connections for the process and regeneration air are of the round type, with sealing gasket. While
the joint suction connection is rectangular with M6 threaded inserts (optional there is an accessory for
the adjustment of the rectangular round section with gasket).
NOTE! The dehumidifier has been designed for specific process air flows, which correspond to the size of
the installed fans, and must not be connected to existing air conditioning systems.

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AD150E-STD.EN-00 - Subject to change without notice TFT Dry Air
When installing the duct network between the dehumidifier and the connections for the inlet
and outlet sockets, follow the instructions below:
The length of the duct network must be minimal in order to limit pressure drops.
To ensure optimum performance, all rigid joints in the process or regeneration air ducts must
be airtight and vapor tight.
The process air duct must be insulated in order to avoid condensation on the outside when the
temperature inside the duct falls below the ambient air dew point temperature.
If there is a risk of temperatures below 0°C, the ducts must be insulated.
The high humidity level of the exhaust air, emitted by the dehumidifier, could cause
condensation to accumulate inside the ducts. Insulating the ducts reduces the amount of
condensation.
The horizontal ducts of the humid air must be installed with a slight slope (away from the
dehumidifier) to facilitate the drainage of any condensation. At the lowest points of the humid
air expulsion duct, condensate drainage devices must be installed. The humid air duct must be
made of anticorrosive material (for example, stainless steel, aluminum, plastic, etc.) and must
withstand temperatures that can reach 100°C.
Be sure to leave adequate space to perform maintenance operations during the design and
installation of the ducts.
The ducts must be designed to prevent rain or snow from entering the dehumidifier.
In order to reduce the transmission of vibrations and/or noises along rigid ducts, it is
recommended to install flexible hoses and any silencers.
The ducts mounted directly on the dehumidifier must be equipped with adequate supports to
reduce the load and the tension due to the weight and movement of the ducts themselves.
Manual calibration dampers must be installed on the process air and regeneration air flows to
maintain the unit's functional efficiency.
The total pressure drop of the process and regeneration air ducts must not exceed the available
pressure of the fans with which the dehumidifier is equipped.

Page 14 of 27
AD150E-STD.EN-00 - Subject to change without notice TFT Dry Air
First start-up
Preliminary checks
CAUTION! The installation and the first start-up of the unit must be TFT.
CAUTION! The power supply is constantly present in the general switch of the unit. Risk of
electric shock.
For the operation, perform the following checks in the order:
1. Make sure that the power switch electrically isolates the dehumidifier and that the isolator is in the
OFF position.
2. Open the panel of the dryer and make sure there are no foreign objects inside and in the electrical
cabinet.
3. Make sure the flow control dampers are fully open and that the pipes are clean and unobstructed
by objects.
4. Check the filters and check that they are clean.
5. Make sure that the fan impellers can move freely.
6. Make sure that the fuses are of the correct flow.
7. Electrically connect the dehumidifier to the mains through the 'switch and switch the main switch
to ON and check for voltage at the terminals L, N or L1, L2, L3 of the dehumidifier.
8. Start the dehumidifier for 3-4 sec bringing the operating mode selector to the MAN position. At this
time verify the correct rotation of the rotor. Returning the switch to turn off the dehumidifier
operating in 0 and check the direction of rotation of the fan impellers.
9. Install the panels and check that the gaskets fit together.
10. The appliance is now ready to be started.
11. Start the dehumidifier and control the flow of process air and regeneration. Check the flow rates on
the respective sides of supply air. If necessary, adjust the air flow by means of a damper installed
on the flow of dry air and moist.
If prompted to verify the performance of the dehumidifier as dry air produced by measuring the output
of the dehumidifier and compare the values with those listed on page 18.

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AD150E-STD.EN-00 - Subject to change without notice TFT Dry Air
Maintenance
Safety
CAUTION! The installation, adjustment, maintenance and any repairs must be carried out by
qualified personnel informed of the risks related to the operations of equipment supplied
from high voltage and high temperature.
CAUTION! The power supply is constantly present in the switch for the unit. Risk of electric
shock.
CAUTION! After a power failure the dehumidifier may restart automatically. Turn off the
main switch and always padlocked supply before performing any maintenance work.
PLEASE NOTE! For any maintenance or repair:
Wait 15 minutes after turning off the dryer before opening each service panel, this in
order to allow the cooling of battery regeneration.
Disconnect electrical power to the dryer via the main line.
Unplug the power cord or place it in off the line-general.
The maintenance intervals depend on the environment in which the dehumidifier is installed. The
frequency with which, therefore, perform maintenance intervals may vary from one installation to
another. Improper maintenance can cause a decrease in performance.
Filters
The dehumidifier is equipped with two separate filters, one for the process air and one for the
regeneration air. The filters are placed on the inputs of the respective streams of air before it enters
the dehumidifier. Intervals for cleaning or replacement of filters will be determined by the amount of
dust and particles from the air where you installed the dehumidifier.
We recommend that the filters are checked at least once a month.
The unit can be equipped with differential pressure gauges to check the pressure drop across the filter.
Do not leave the dehumidifier running without the filters in this way in fact the rotor can be ruined.
Rotor
The rotor does not need maintenance. However, it may be necessary to clean it very gently with
compressed air. If very dirty, the rotor can be washed with water: Before you perform this operation,
contact your local distributor since it is not a routine operation. Check once a year, the bearings and
the rotor surface.
Electric motors
The electric motors are equipped with ball bearings. Maintenance operations are not necessary in the
bearings. Check the motor and any noise once a year.

Page 16 of 27
AD150E-STD.EN-00 - Subject to change without notice TFT Dry Air
Heating coil
No maintenance required, but at least twice a year to check for any mechanical damage.
Rotor drive belt
Check at regular intervals the correct belt tension. This is maintained under tension by the tensioning
device and requires no adjustments during normal operation.
Gaskets
Check seals at regular intervals to check for any damage or dust
General survey on service intervals
Filters
rotor bearings
motors
strap rotor
heat
Gaskets
when necessary
√
Every 6 months
√
√
√
Every 12 months
√
√
NOTE! Always contact TFT for assistance and repairs. Operational failures can occur if the
unit is maintained insufficiently, inadequately or incorrectly.
NOTE! The commissioning/startup inspection performed by TFT is mandatory to validate the
full warranty.
Receiving and Inspection
During installation or when you need to work on the unit, you must strictly follow the rules given in this manual, follow the
instructions on the unit and to take any necessary precautions. The failure to comply with instructions could result in
dangerous situations. After receiving the unit, inspect it for damage: the unit left the factory in perfect condition, any
damage must be immediately reported to the carrier and recorded on the Delivery Note before signing it. The Company
must be notified within 8 days, the extent of the damage. The customer must complete a written report of any severe
damage.
Before accepting the delivery, please control that:
•the machine has not been damaged during transport;
•the material delivered is as specified in the transport document.
In the event of damage or malfunction:
•Immediately report any damage note on the Delivery Note;
•notify the supplier within 8 days from receipt, the type of the damage. All notifications after this date are invalid;
•in the event of substantial damage, compile a written report.
Storage
If you need to store the unit, leave it packed in a closed place. If for some reason the car was already unpacked follow these
guidelines to prevent damage, corrosion and / or deterioration:
•Ensure that all openings are securely capped or sealed;
•To clean the unit, never use steam or other cleaning agents that might damage it;

Page 17 of 27
AD150E-STD.EN-00 - Subject to change without notice TFT Dry Air
•Remove and leave to the site manager any keys that are used to access the control panel.
Unpacking
The packaging may be dangerous for the operators.
It is recommended to leave the unit packed during handling and unpack only at installation. The packaging unit must be
removed with care to avoid causing damage to the machine. The materials constituting the packaging may be of a different
nature (wood, cardboard, nylon, etc..).
Packaging materials should be stored separately and delivered for disposal or possible recycling companies
designed for the purpose, thus reducing the environmental impact.
Lifting and Handling
When unloading the unit, it is highly recommended to avoid any sudden move to protect the internal components. The
smaller units can be lifted by hand, being careful not to damage the side and top panels of the unit. The unit should always
be kept horizontal during these operations.
CAUTION! The dehumidifier weights over 25kg. To avoid personal injury or unit, always use
approved equipment.

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AD150E-STD.EN-00 - Subject to change without notice TFT Dry Air
Troubleshooting
Sign
Possible cause
What to do
reduction of the capacity of the
dehumidifier
clogged filters
Electric heating is not working
reduced air flow
the rotor is stop
internal air leaks
regeneration temperature insufficient
air leaks
clean or replace the filters
check the fuses
check the dampers
check the tension of the belt
Check the seals
check the battery reactivation
Check the seals and panels
main fuses blown
malfunction fans
air flow rate is too high
the rotor is stop
malfunction of battery reactivation
check fans and motors
check the flow rates and dampers
control the motor and the belt
check the battery reactivation
the dryer will not start
control circuit
control signal
power supply phases
fuses for control malfunction
check the fuses
check the external signal to start stop
check the main fuses and the sequence of steps
verify the electrical components
the rotor is stop
belt slippage
broken belt
off-axis rotor
malfunction of the motordrive
check the tension of the belt
replace the belt
control the position of the rotor on the central
support
replace the drivemotor
Poor air flow or reclamation process
clogged filters
malfunction fans
power supply phases
ducts blocked
clean or replace the filters
check fans and motors
check the fuses and the main sequence phase
control dampers and ducts

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AD150E-STD.EN-00 - Subject to change without notice TFT Dry Air
Specifications
Technical data
TECHNICAL DATA
MODELLO
ADS
150
300
Performances
Dehumidification Capacity *
Kg/h
0,57
1,1
Fans
Process air flow
m3/h
150
300
Static pressure
Pa
100
150
Fan nominal power
W
52
102
Regeneration air flow
m3/h
50
100
Static pressure
Pa
100
150
Fan nominal power
W
-
-
Drive Motor
Nominal power
VA
3,7
3,7
Regeneration
Regereration type
Electric
Electric
Installed power
KW
0,7
1,4
Temperature rise in the heating coil
°C
80
80
Electrical characteristics
Power supply
Volt/Ph/Hz
230/1+N/50 ±5%
230/1+N/50 ±5%
Maximum power absorbed standard units
KW
0,76
1,51
Maximum current absorbed standard units
A
4
7
Noise level
Sound pressure **
dB (A)
42
42
Sound power **
dB (A)
70
70
(*) Con aria di ingresso a 20°C 60%
(**) Protezione elettrica standard, resistente all’acqua ed alla polvere.

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AD150E-STD.EN-00 - Subject to change without notice TFT Dry Air
Performance diagrams
The diagrams are based on a nominal air flow with an external air condition of 20°C 60%.
The horizontal axis represents the input temperature to the dehumidifier, the vertical axis the capacity of the
dehumidifier. Once the input temperature has been selected, it goes up vertically until reaching the relative
humidity curve, from the point of intersection we move horizontally to the left to see the yield of the
dehumidifier.
Example: Input temperature 20°C, we cross the relative humidity curve by 60%, moving horizontally to the left
we see that the capacity of about 15Kg/h.