TFT AD800E User manual

© 2018 TFT DryAir
Dehumidifier
AD800E
Technical manual
Unit 400Vac-3Ph-50Hz

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AD800E-STD.EN-06 - Subject to change without notice TFT DryAir
Index
General information governance and security concepts .................................................................... 4
Warranty.......................................................................................................................................... 5
Copyright.......................................................................................................................................... 5
Safety symbols used ......................................................................................................................... 6
Applications ..................................................................................................................................... 7
Principle of operation ....................................................................................................................... 7
Product description .......................................................................................................................... 8
Structure.................................................................................................................................................................8
Rotor.......................................................................................................................................................................8
Drive system.......................................................................................................................................................8
Bearings .............................................................................................................................................................8
Filters......................................................................................................................................................................8
Fans for the process and re generation air ...........................................................................................................8
Reactivation air heater coil ....................................................................................................................................9
Electrical panel .......................................................................................................................................................9
Possibility of operation...........................................................................................................................................9
Installation ..................................................................................................................................... 10
Equipment requirements and installation location .............................................................................................11
Connecting channel..............................................................................................................................................11
General instructions.........................................................................................................................................11
Specification for the expulsion channel of moist air ........................................................................................11
Specifications for the input channel of reactivation air...................................................................................12
Specifications for the channels of process air and dry air in case the dehumidifier is installed inside the room
to be dehumidified...........................................................................................................................................12
Specifications for the channels of process air and dry air in case the dehumidifier is installed outside the
room to be dehumidified..................................................................................................................................12
Electrical connections...........................................................................................................................................13
First start-up................................................................................................................................... 14
Preliminary checks................................................................................................................................................14
Maintenance .................................................................................................................................. 15
Safety....................................................................................................................................................................15
Filters....................................................................................................................................................................15
Rotor.....................................................................................................................................................................15
Electric engines.....................................................................................................................................................15
Heating coil...........................................................................................................................................................16
Trasmission belt of the rotor................................................................................................................................16
Seals......................................................................................................................................................................16
Overall summary service intervals .......................................................................................................................16
Inspection ...................................................................................................................................... 16
Storage .................................................................................................................................................................17
Unpacking.............................................................................................................................................................17
Lifting and handling..............................................................................................................................................18

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Troubleshooting ............................................................................................................................. 19
Technical data ................................................................................................................................ 20
Dimensions...........................................................................................................................................................20
Spare Parts List:....................................................................................................................................................21
Component data............................................................................................................................. 22
Electrical connections: Preliminary Information Security................................................................. 23
Electrical data.......................................................................................................................................................23
HOW TO CONNECT THE POWER SUPPLY .............................................................................................................24
Electrical wiring: ............................................................................................................................. 25
Description of adjustment control................................................................................................... 26
Symbol Display Description..................................................................................................................................26
Description Parameters........................................................................................................................................27
Alarm menu..........................................................................................................................................................31
Description connection external humidistat........................................................................................................34

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AD800E-STD.EN-06 - Subject to change without notice TFT DryAir
General information governance and security concepts
Anyone who uses the dehumidifier AD must have at his/her disposal this technical manual and know
the security concepts written in this book.
All the information described in this manual are only suggestions for the optimum use; they don’t
intended to replace personal responsibility and/or local safety regulations.
Maintenance and malfunction must be performed only by authorized personnel.
The installation of the controller and its electrical connection describe in the following, must be
carried out by authorized personnel only. Repairs must be done by authorized personnel only.
This dehumidifier must not be installed in explosion-endangered areas.
The unit must not be immersed in water or constantly exposed to water spray.
Do not insert anything such as fingers or branches into the air vents.
The power supply is constantly present in the switch for the unit.
Turn off input power before opening any panel of the dehumidifier.
Allow the unit to cool down before maintenance work (at least 15 minutes after turning off).
After power failure or mains disconnection, an automatic restart of the machine may take place after
voltage return. So, turn off and padlocked always switch power OFF before any maintenance work.
The panels of the dehumidifier must be removed only to perform maintenance.
The dehumidifier can be installed only to dehumidify air at atmospheric pressure.
Do not operate the unit without filters or when the filters are soiled.
Never remove the labels or allow them to become obscure.
Read this information and keep this manual accessible in the immediate vicinity of the dehumidifier.
The monitoring operations and maintenance must be performed in strict accordance with the
instructions.
Not attempt to repair or maintain the dehumidifier and always contact TFT for any repairs or
maintenance.
Do not modify the unit without written authorization of TFT.
During operation or other interventions on the machine, users have the responsibility to asses: the
safety of everyone involved, the safety of the unit and other assets, the protection of the
environment.

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AD800E-STD.EN-06 - Subject to change without notice TFT DryAir
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 TECNOFRIGO TUSCANY per l’assistenza
e le riparazioni.
TECNOFRIGO srl’s liability shall not include defects caused by inadequate maintenance or repairs or
by incorrect installation by the Buyer, or else by alterations made without TECNOFRIGO’s 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 ElectroMagnetic
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.

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AD800E-STD.EN-06 - Subject to change without notice TFT DryAir
Safety symbols used
GENERIC DANGER
Observe all signs placed beside the pictogram. Failure to follow the warnings and instructions may result in
several injury or death to the machine operator, a bystander, or a person inspection or repairing the machine.
ELECTRIC DANGER
Observe all signs placed beside the pictogram. The symbol indicates components of machine or, in this manual,
actions that could generate a fulguration risk.
MOVING PARTS
This symbol identifies hazards associated with moving parts.
HOT SURFACES
This symbol identifies the presence of exposed hot surfaces that will cause serious burn injuries.
SHARP SURFACES
This symbol indicates that dangers may arise, for example, due to uneven surfaces, sharp edges, or the use of
operating materials and adjuvants.
ELECTRICALPANEL AUTHORISED PERSONNEL ONLY
Operation, maintenance and/or repair of the electrical panel must only be carry out by personnel trained and
qualified to work with electrical devices.
GROUNDING
This symbol identifies the grounding.
RECOVERABLE/RECYCLABLE MATERIAL

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AD800E-STD.EN-06 - Subject to change without notice TFT DryAir
Applications
The dehumidifier AD is a desiccant dehumidifier, a rotary type using a humidity adsorbing rotor to
dehumidify air at atmospheric pressure. It can be used to dehumidify air at relative humidity up to 100%
and temperature from -30°C to +40°C.
There are so many applications and the following are some examples:
Humidity control in production processes
Drying of temperature-sensitive products
Maintaining the proper level of humidity in the storage warehouses
Corrosion protection of plants and in general of ferrous materials
Humidity control in museums and libraries
Drying properties after flooding and construction
Improvement of the environment everywhere occurs excessive moisture
Principle of operation
This dehumidifier works in a continuous process with
two air streams, process air and reactivation air. As
shown in the figure, a honeycomb rotor dehumidifier
consists of a honeycomb adsorbent rotor, which is
rotated, in a casing at a low speed of around 8 rph by a
geared motor in the outer circumferential drive
method. The casing is divided into two sectors of
process zone and re generation zone.
Process air is led in the process zone to contact the
rotating honeycomb rotor. While it passes through the
honeycomb channels, water vapor is adsorbed and it
becomes dry air to be supplied. Sometimes later, the honeycomb rotor having got wet due to moisture
adsorption enters the regeneration zone by rotation. The rotor is reactivation by hot air passing through
honeycomb channel and turns again to the process zone. Dry air can always be produced in stable
conditions by this continuous cycle. Process air is dried in the rotor between -30°C and +40°C, the re
generation air is beaten by an internal coil up to about 100°C.

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Product description
The dehumidifier is designed to meet the requirements of the degree of protection IP54 of IEC.
Structure
The structure is made with pre-painted double-shell galvanized/AISI 304 steel panels (sandwich
type).The top panel can be removed for maintenance purpose. The connection to the dehumidifier can
be made with standard gimped channels.
Rotor
The ceramic matrix is combined with synthesized silica gel to form the most advanced dehumidifierrotor.
The ceramic matrix gives structural support for the thin layer of advanced silica gel. The synthesized
advanced silica gel is self-bonding to the ceramic matrix and to itself through the matrix, filing in all the
voids in the matrix and totally encapsulating the ceramic. Only the desiccant in contact with air-stream.
The advanced form of silica gel has an extremely high “affinity” for water vapor. It has an active surface
with numerous macro-pores of uniform size and shape. The many internal micro-pores quickly adsorb
humidity and are readily de-sorbed for convenient and continuous dehumidification. The synergistic
form of the desiccant and ceramic matrix allows for distinct advantages over both granular adsorbents
are impregnated desiccants. With the advanced silica gel rotor are no granules and no dusting. It stops
adsorbing moisture hen moisture is in equilibrium with the moisture in the passing or surrounding air-
stream. There are never any deliquescent problems associated with this system.
Furthermore, it can be coupled with a pre-cooling coil.
Drive system
A belt drive system controls the movement of the rotor. The strap exerts its traction on the outer edge
of the rotor and is driven by a pulley on the motor reducer. A special device maintains the correct belt
tension to prevent slippage of the belt. 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.
Filters
The dehumidifier has two filters (G3) separate: one on the input process air and the other one on the
input reactivation air. In option filters with different efficiency can be installed.
Fans for the process and re generation air
The fans are directly coupled to a single-phase motor and/or three phase class IP55, ISO F, Class B. They
are accessible for maintenance by removing the panel inspected. The fans can be controlling with a
frequency converter for controlling the speed of rotation. The fan control process by default is set at a
fixed speed, but it can be configured with variable speed and controller by an external signal, or by a
pressure sensor.

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Reactivation air heater coil
The electric heaters reactivation is of the type with steel elements, with double safety protection for
high temperature, eliminating the risk of overheating and allows a control steps for a power modulation
from 0%, 50% and 100% of the yield of dehumidifier.
Electrical panel
The electrical panel is located inside the unit. Switches and indicators of operation are located outside
the dehumidifier.
Possibility of operation
The mode selector on the outside of the dehumidifier allows the following modes:
0 dehumidifier stopped (in case of alarm, this position works by Reset)
MAN dehumidifier in operation continuously (power 100%)
AUTO dehumidifier controller by a humidistat or by an external signal
After the dehumidifier has been switched off, wait at least for 15 minutes before going
inside in order to allow the dehumidifier to cool.

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AD800E-STD.EN-06 - Subject to change without notice TFT DryAir
Installation
GENERAL INFORMATION AND USE OF SYMBOLS
Before performing any type of operation each operator must know perfectly the operation of the machine and
its controls and must have read and understood the information contained in this manual.
All operations performed on the machine must be done by qualified staff in accordance with 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 get close and do not insert any objects into moving parts.
WORKERS’ HEALTH AND SAFETY
The operator's workplace must be kept clean, tidy and free from objects that might hinder movement. The
workplace should be adequately illuminated for the work in. Insufficient or excessive lighting can generate risks.
Make sure work places are always adequately ventilated and suction system are always functional, in excellent
condition and in compliance with the provisions of the law.
PERSONAL PROTECTION DEVICES
Operators engaged in the installation and maintenance of the machine must wear the appropriate personal
protective equipment required by law and listed below.
Protective footwear.
Eye protection.
Protective gloves.
Respiratory protection.
Hearing protection.