Fini Rotar Ksc 10 Oszuszacz

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ARM 0015 50 Rev.01

ESSICCATORE A CICLO FRIGORIFEROREFRIGERATED AIR DRYER

KHLKREISLAUF TROCKNERSCHEUR A CYCLE FRIGORIFIQUE

SECADOR A CICLO FRIGORFICOSECADOR A CICLO FRIGORFICOLUFTTORKARE MED KYLCYKEL

KOELPERSLUCHTDROGER

- I - MANUALE USO E MANUTENZIONE

- GB - USERS, MAINTENANCE

- D - GEBRAUCHS - UND WARTUNGS ANWEISUNGEN

- F - MANUEL DINSTRUCTIONS ENTRETIEN

- E - MANUAL USO - MANTENIMIENTO

- P - MANUAL USO - MANUTENO

- S - BRUKS - OCH UNDERHLLSANVISNING

- NL - BEDIENINGS- EN ONDERHOUDSHANDLEIDING

ARTICARTICARTICARTIC

134/EVO134/EVO134/EVO134/EVO

EDIZIONE ISSUE AUSGABE EDITION EDICIN EDIO2004

Targhetta Dati


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I

GB

D

F

EP

NL

DK

S

NFI

GR

DICHIARAZIONE DI CONFORMIT 89/392/CEEEC DECLARATION OF CONFORMITY 89/392/ECCKONFORMITTSERKLRUNG GEMSS EG-RICHTLINIE 89/392/EWGDCLARATION DE CONFORMIT 89/392/CEEDECLARATION DE CONFORMIDAD 89/392/CEEDECLARACO DE CONFORMIDADE 89/392/CEEOVEREENKOMSTVERKLARING EG-RICHTLIJN 89/392/EEGEG FRSKRAN 89/392/EECEC DECLARATION 89/392/EEC

EY VAATIMUSTENMUKAISUUSVAKUUTUS 89/392/EECEU-DEKLARASJON 89/392/EECDHLWSH POIWTHTOS 89/392/EEC

FINI S.p.A.Via F.lli VIGNOLI , 3 - 40069 Zola Predosa - Bologna

ITALY

-I-Dichiariamo sotto la nostra esclusiva responsabilitche il prodotto al quale questa dichiarazione si riferisce, conforme alle seguenti norme o ad altri documenti

normativi.

-N- Forklarer herved som ansvarlig for produksjon avproduktet Rvilket dette sertifikat gjelder, at dette produkteri overenstemmelse med flgende standard og andre

normativa document.-GB- Declare under our sole responsibility that theproduct to which this declaration relates is in conformitywith the following standards and other normativedocuments.

-S-Frklarar hrmed som ensam ansvarig fr tillverkningav produkten vilken detta intyg gller, att denna produktverensstmmer med fljande standard och andranormativa dokument.

-D- Erklren, da das Produkt, fr welches dieseErklrung gilt, unter unserer alleinigen Verantwortung inbereinstimmung mit den nachfolgenden EG-Richtlinienund anderen Normen gefertigt wurde.

-DK- Som eneansvarligfor fremstillingen af produkteterklres herved, at det er fremstillet i overensstemmelsemed flgende standarder og andere retningsgivendedokumenter.

-F-Dclarons sous notre entire responsabilit que le

produit auquel cette dclaration se rfre, est conformeaux normes suivantes et aux autres rglementations.

-P- Declaramos sob nossa exclusiva responsabilidade

que o produco a que se recere esta declarao estconforme as seguientes normas e/ou documentosnormativos.

-E-Declaramos bajo nuestro unica responsabilidad queel producto al cual esta declaracin se refiere, esconforme a las siguientes normas y oltros documentosnormativos.

-FI-Vakuutamme ja olemme tysin vastuussa siit etttm tuote, josta tm todistus annetaan, noudattaaseuraavien standardien vilken detta intyg gller, att dennaprodukt venensstmmer med.

-NL- Verklaren dat onder onze volledigeverantwoording de volgende producten waarop dezeverklaring betrekking heeft, met de volgende richtlijnenen andere normatieve documenten overeenkomen.

-GR-Dhlwnoume, upo thn plhrh euqunh mav, oti to proineiv to opoion anaferetai h parousa dhlwsh, poiothkwvanaferetai eiv tiv akolougev tecnikev koinotikevnomoqesiev.

EN292-2 - UNI 8011/79ISO 7183/86 - UNI 9219/88CEI 61-18 - IEC 355-2-34

EN60 204-1 - CEI 44-6

Firma - Signature - Unterschrift

Signature - Firma - AssinaturaAmministratore delegato

CEO

PdG

GeschftsfhrerAdministrador delegado

Prsident-directeur

Daglig leder

Verkstllande direktr

Administrerende direktr

Administrador delegadoToimitusjohtaja


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ENGLISH


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40069 Zola Predosa (BO) - ITALY [email protected] - GB -

Dear Customer,

thank you for choosing our product. In order to get the best performances in the use of this product, pleaseread carefully this manual.

To avoid incorrect operation of the equipment and possible physical risk to the operator, please read andstrictly follow the instructions contained in this manual. Note, these instructions are in addition to the safety

rules that apply in the country where the dryer is installed.Before packing for shipment each ARTIC 134/EVOseries refrigerated air dryer is subjected to a rigoroustest to ensure the absence of any manufacturing faults and to demonstrate that the device can perform allthe functions for which it has been designed.

Once the dryer has been properly installed according to the instructions in this manual, it will be ready foruse without any further adjustment.

The operation is fully automatic, and the maintenance is limited to few controls and some cleaningoperations, as detailed in the following chapters.

This manual must be maintained available in any moment for future references and it has to be

intended as inherent part of the relevant dryer.

Due to the continuous technical evolution, we reserve the right to introduce any necessary change without

giving previous notice.Should you experience any trouble, or for further information, please do not hesitate to contact us.

IDENTIFICATION PLATE

Model

Serial No. Nominal Flow Rate

Max Air Pressure

Max Inlet Air Temperature

Ambient Temperature

Refrigerant

Refrigerant Design Pres. HP/LP Electric Supply

Electric Nominal Power

Fuse Max.

Manufactured

The product identification plate,on the back of the dryer, showsall the primary data of themachine.These data must always bereferred to the manufacturer orto the dealer when information

or spares are needed, evenduring the warranty period.The removal or the alteration ofthe identification plate will voidthe warranty rights.

Model

Serial No.

Nominal Flow Rate

Max Air PressureMax Inlet Air Temp.

Ambient Temp.

Refrigerant

Refrig. Design Pres. HP/LP

Electric Supply

Electric Nominal Power

Fuse Max.

Manufactured

Nl/min

bargC

C

type/kg

barg

ph/V/Hz

W/A

A

www.finicompressors.com

BOLOGNA - ITALY

40069 - ZOLA PREDOSA

FINI S.p.A.

FiniCOMPRESSORS

WARRANTY CONDITIONS

For 12 months from the installation date, the warranty covers eventual faulty parts, which will be repaired orreplaced free of charge, except the travel, hotel and restaurant expenses of our engineer.The warranty doesnt cover any responsibility for direct or indirect damages to persons, animals orequipment caused by improper usage or maintenance, and its limited to manufacturing faults only.The right to warranty repairs is subordinated to the strict compliance with the installation, use andmaintenance instructions contained in this manual.The warranty will be immediately voided in case of even small changes or alterations to the dryer.

To require repairs during the warranty period, the data reported on the identification plate must be notified.


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1. SAFETY RULES

1.1 Definition of the Conventional Signs Used in This Manual1.2 Warnings1.3 Proper Use of the Dryer1.4 Instructions for the use of pressure equipment according to PED Directive 97/23/EC

2. INSTALLATION2.1 Transport2.2 Storage2.3 Installation site2.4 Assembling2.5 Connection to the Compressed Air System2.6 Connection to the Mains2.7 Condensate Drain

3. START UP

3.1 Preliminary Operations

3.2 First Start Up3.3 Operation and Switching-Off

4. TECHNICAL CHARACTERISTICS

4.1 Technical Features of Dryers Series ARTIC 134/EVO

5. TECHNICAL DESCRIPTION

5.1 Control Panel5.2 Operation5.3 Flow Diagram5.4 Refrigerating Compressor

5.5 Condenser5.6 Inlet Filter FS 018 (1 micron)5.7 Dehydration Filter5.8 Capillary Tube5.9 Alu-Dry module5.10 Hot Gas By-pass Valve5.11 Refrigerant Pressure Switch PV5.12 Electronic Instrument DTT11

6. MAINTENANCE, TROUBLESHOOTING AND DISMANTLING

6.1 Controls and Maintenance

6.2 Troubleshooting6.3 Dismantling of the Dryer

7. LIST OF ATTACHMENTS

7.1 Dryer Dimensions7.2 Exploded View7.3 Electric Diagram


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1.1 DEFINITION OF THE SAFETY SYMBOLS USED

Before attempting any intervention on the dryer, read carefully the instructions reported in this useand maintenance manual.

General warning sign. Risk of danger or possibility of damage to the machine. Read carefully thetext related to this sign.

Electrical hazard. The relevant text outlines conditions which could result fatal. The relatedinstructions must be strictly respected.

Danger hazard. Part or system under pressure.

Danger hazard. Component or system which during the operation can reach high temperature.

Danger hazard. Its absolutely forbidden to breath the air treated with this apparatus.

Danger hazard: Its absolutely forbidden to use water to extinguish fire on the dryer on in the

surrounding area.

Danger hazard. Its absolutely forbidden to operate the machine when the panels are not in place.

Maintenance or control operation to be very carefully performed by qualified personnel1.

ARIA

AIR

LUFT

AIR

Compressed air inlet connection point.

ARIA

AIR

LUFT

AIR

Compressed air outlet connection point.

Condensate drain connection point.

Operations which can be worked out by the operator of the machine, if qualified1.

NOTE : Text to be taken into account, but not involving safety precautions.

In designing this unit a lot of care has been devoted to the environment protection:

CFC free refrigerantsCFC free insulation parts

Energy saving design

Limited acoustic emission

Dryer and relevant packaging composed of recyclable materials

Not to spoil our commitment, the user should follow the few ecological suggestions marked withthis sign.

1 Experienced and trained personnel acquainted with the relevant rules and laws, capable to perform the needed activities and toidentify and avoid possible dangerous situations while handling, installing, using and servicing the machine.


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1.2 WARNINGS

Compressed air is a highly hazardous energy source. Never work on the dryer with parts underpressure. Never point the compressed air or the condensate drain jet towards anybody. The user isresponsible for the installation of the dryer, which has to be executed on the basis of the instructionsgiven in the Installation chapter. Otherwise, the warranty will be voided and dangerous situationsfor the personnel and/or damages to the machine could occur.

Only qualified personnel can use and service electrically powered devices. Before attempting anymaintenance action, the following conditions must be satisfied :

Ensure that no part of the machine is under voltage and that it cannot be connected to the mains.

Ensure that no part of the dryer is under pressure and that it cannot be connected to thecompressed air system.

This refrigeration air dryer contains R134.a HFC type refrigerant fluid, not considered potentialozone depleting. Maintenance on refrigeration systems must be carried out only by refrigerationengineers according to local rules. R134.a may be dangerous for men only if it is present in bulkconcentrations.In case of leaks the room is to be aired before any intervention.

Any change to the machine or to the relevant operating parameters, if not previously verified andauthorised by the Manufacturer, in addition to create the possibility of dangerous conditions it willvoid the warranty.

Dont use water to extinguish fire on the dryer on in the surrounding area.

1.3 PROPER USE OF THE DRYER

This dryer has been designed, manufactured and tested only to be used to separate the humidity normallycontained in compressed air. Any other use has to be considered improper.The Manufacturer will not be responsible for any problem arising from improper use; the user will be in anycase responsible for any resulting damage.

Moreover, the correct use requires the respectation of the installation conditions, in particular :

Voltage and frequency of the mains.

Pressure, temperature and flow-rate of the incoming air.

Ambient temperature.

This dryer is supplied tested and fully assembled. The only operation left to the user is the connection to theplant in compliance with the instructions given in the following chapters.

The purpose of the machine is the separation of water and eventual oil particles present incompressed air.The dried air cannot be used for respiration purposes or for operations leading to direct contact withfoodstuff.This dryer is nor suitable for the treatment of dirty air or of air containing solid particles.


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1.4 INSTRUCTIONS FOR THE USE OF PRESSURE EQUIPMENT ACCORDING TOPED DIRECTIVE 97/23/EC

To ensure the safe operation of pressure equipments, the user must conform strictly to the above directiveand the following :1. The equipment must only be operated within the temperature and pressure limits stated on the

manufacturers name/data plate.

2. Welds on heat-exchanger are forbidden.3. The equipment must not be stored in badly ventilated spaces, near a heat source or inflammablesubstances.

4. Vibration must be eliminated from the equipment to prevent fatigue failure.5. Automatic condensate drains should be checked for operation every day to prevent a build up of

condensate in the pressure equipment.6. The maximum working pressure stated on the manufacturers data plate must not be exceeded. Prior

to use, the user must fit safety / pressure relief devices.7. All documentation supplied with the equipment (manual, declaration of conformity etc.) must be kept for

future reference.

TAMPERING, MODIFICATION AND IMPROPER USE OF THE PRESSURE EQUIPMENT ARE

FORBIDDEN. Users of the equipment must comply with all local and national pressureequipment legislation in the country of installation.

2.1 TRANSPORT

Once verified the integrity of the packaging, place the unit near to the installation point and unpack thecontents.

To move the packaged unit we suggest to use a suitable trolley or forklift. Transportation by hands isdiscouraged.

Keep the dryer always in vertical position. Turning it upside down some parts could be irreparablydamaged.

Handle with care. Heavy blows could cause irreparable damage.

Even when packaged, keep the machine protected from severity of the weather.

2.2 STORAGE

Even when packaged, keep the machineprotected from severity of the weather.

Keep the dryer in vertical position, also whenstored. Turning it upside down some parts couldbe irreparably damaged.

If not in use, the dryer can be stored in its

packaging in a dust free and protected site at amaximum temperature of 45 C, and a specifichumidity not exceeding the 90%. Should thestocking time exceed 12 month, please contactthe manufacturer.

The packaging materials are recyclable. Each single material must be properly disposed in a

manner complying with the rules in force in the destination country.


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2.3 INSTALLATION SITE

Particular care is required in selecting the installation site, as an improper location couldjeopardise the proper operation of the dryer. This unit is not suitable to be used in explosiveatmosphere, where risk of fire could exist, or in presence of gaseous or solid polluting material.

Dont use water to extinguish fire on the dryer on in the surrounding area.

Minimal installation requirements : Select a clean room dry, free from dust, and protected from atmospheric disturbances.

The supporting area must be smooth, horizontal and able to hold the weight of the dryer.

Minimum ambient temperature of +1 C.

Maximum ambient temperature of +45 C.

Allow at list a clearance of 1 m on each side of the dryer for proper ventilation and to facilitate eventualmaintenance operations.

The dryer doesn't require to be fixed to the supporting surface.

2.4 ASSEMBLING

Operations to be performed by qualified personnel.

Never operate with plants under pressure.The user is responsible to ensure that the dryer will never be operated with pressure exceeding thenominal values. Eventual over-pressure could be dangerous both for the operator and the machine.

1 Dryer

2 Cover panel

3 Fixing to compressorupper screw

4 Compressor

5 Fixing to compressorlower screw

6 Compression fitting

7 Connection pipe

8 Compression fitting

9 By-pass group

10 Lifting lug

Fig. 1 Fig. 3 Fig. 4

Fig. 22

1

6

3

Part. A

5

4

6

7

8

9

3 3

Part. A

10

Assembling sequence :

Replace the screws No.3 of the compressor, with the (M6x45) fixing screws supplied with the dryer, andthigh them only partially.

Tight in the air outlet of compressor the compression fitting No.6, supplied with the assembling kit.

Remove the cover panel No.2 of the dryer.

Joint the dryer with the compressor, centring the holes of the dryer frame, with the screws No.3 (Fig. 3). To lift the dryer from the ground, use the four lifting lug No.10 (M6 with long shank) screwed into the fourholes for cover panel fixing.

Slide down the dryer, so the screws No.3 occupy the upper part of the holes (Fig. 4).

Tighten definitively the fixing screws No.3.

Tight the (M8x25) fixing screws, supplied with the assembling kit, in the position No.5 to fix finally the dryerto the compressor.

Put the connection pipe No.7 from the compression fittings No.6 and No.8 and tighten them.

Connect and properly fasten the condensate drain pipe, in compliance with the instructions given in the2.7 following chapter.

Slowly pressurize the plant and check for air leakage.

Reassemble the cover panel No.2.


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2.5 CONNECTION TO THE COMPRESSED AIR SYSTEM

Operations to be performed by qualified personnel.Never operate with plants under pressure.The user is responsible to ensure that the dryer will never be operated with pressure exceeding thenominal values.Eventual over-pressure could be dangerous both for the operator and the machine.

The temperature and the amount of air entering the dryer must comply with the limits reported on the dataplate. The cross section of the connecting piping, which must be free from dust, rust, chips and otherimpurities, must be consistent with the flow-rate of the dryer. In order to facilitate the maintenanceoperations, it has been installed a by-pass group, as shown in the following illustration.

Open Close

With by-pass group open the compressed aircrosses the dryer.

With by-pass group closed the dryer is isolatedfrom the compressed air circuit.

2.6 CONNECTION TO THE MAINS

The connection to the mains, to be carried out by qualified personnel, and the safety systems mustcomply with local rules and laws.

Before connecting the unit to the electric power, verify that the voltage and the frequency available on the

mains correspond to the data reported on the data plate of the dryer. In terms of voltage, a 5% tolerance isallowed.The dryer comes with a main connecting cable already installed and ending with a VDE 16A - Shucko plug.

The mains socket must be provided with a mains magneto-thermal differential breaker (In=0.3A),adjusted on the basis of the consumption of the dryer (see the nominal values on the data plate of thedryer). The cross section of the power supply cables must comply with the consumption of the dryer, whilekeeping into account also the ambient temperature, the conditions of the mains installation, the length of thecables, and the requirements enforced by the local Power Provider.

It is mandatory ensure the connection to the ground terminal.Dont use adapters on the mains socket. If necessary, have the plug replaced by qualifiedpersonnel.


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2.7 CONDENSATE DRAIN

The condensate is discharged at the same pressure of the air entering the dryer.Never point the condensate drain jet towards anybody.

The dryer comes already fitted with tubing in flexible plastics (6 mm or 10 mm diameter and 1500 mm long)for the connection to the collection plant.The condensate drain occurs through two solenoid valves; in order to avoid clogging of the solenoid valve,the condensate coming from the separator is previously filtered, than discharged. The solenoid valve coil isoperated by DTT11 electronic instrument.Connect and properly fasten the condensate drain to a collecting plant or container.The drains cannot be connected to pressurised systems.

Dont dispose the condensate in the environment.The condensate collected in the dryer contains oil particles released in the air by the compressor.Dispose the condensate in compliance with the local rules.

We suggest to install a water-oil separator where to convey all the condensate drain coming fromcompressors, dryers, tanks, filters, etc.

3.1 PRELIMINARY OPERATION

Verify that the operating parameters matches with the nominal values reported on the data plate ofthe dryer (voltage, frequency, air pressure, air temperature, ambient temperature, etc.).

Before delivery, each dryer is submitted to accurate tests simulating real operating conditions.Nevertheless, the unit could be damaged during transportation. We therefore suggest to check the integrityof the dryer upon arrival and to keep it under control during the first hours of operation.

The start-up must be performed by qualified personnel.Its mandatory that the engineer in charge will adopt safety operational conditions complying withthe local safety and accident prevention requirements.The same engineer will be responsible for the proper and safe operation of the dryer.

Never operate the dryer if their panels are not in place.

3.2 FIRST START-UP

At the first start-up, or in case of start-up after a long inactivity period or following to maintenanceoperations, respect the instructions given below. The start-up must be performed by qualifiedpersonnel.

Sequence of operations:

Ensure that all the steps of the Installation chapter have been observed.

Ensure that the connection to the compressed air system is correct and that the piping is suitably fixedand supported.

Ensure that the condensate drain pipe is properly fastened and connected to a collection system orcontainer.

Ensure that the by-pass system is open.

Ensure that the manual valve of the condensate drain circuit is open.

Remove any packaging and other material which could obstruct the area around the dryer.

Activate the mains switch.

Switch on the dryer by pressing the main switch on the control panel (pos. 1).

Ensure the consumption matches with the values of the data plate.

Allow the dryer temperature to stabilise at the pre-set value.

Switch-on the air compressor.

Check the piping for air leakage.

Check the proper operation of the condensate drains - wait for their first interventions.


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3.3 OPERATION AND SWITCHING OFF

Operation (refer to paragraph 5.1 Control Panel) :

Check the condenser for cleanliness.

Verify that the system is powered.

Activate the main switch on the control panel (pos. 1).

Check that both the main switch - pos. 1 - and the LED

ON

set on the DTT11 are glowing.Wait a few minutes; verify that the DewPoint displayed on the DTT11 is correct and that the condensate is

regularly drained.

Switching off (refer to paragraph 5.1 Control Panel) :

Verify that the DewPoint displayed on the DMC11 is correct.

Switch-off the air compressor.

After few minutes, switch off the main switch on the control panel of the dryer (pos. 1).

NOTE : A DewPoint included in the green operating area of 10 LED bar display of DTT11 electronic

instrument is correct.

During the operation, the refrigeration compressor will run continuously.The dryer must remain ON when ever compressed air is being used, even if the air compressor only loadsintermittently.

4.1 TECHNICAL FEATURES OF DRYER SERIES ARTIC 134/EVO

MODEL ARTIC 134/EVO

Air flow rate at nominal condition1 [Nl/min] 2200

[Nm/h] 132

[scfm] 77.7

Pressure DewPoint at nominal condition1 [C] +3 equal to 0.73 g/Nm of H2O

Nominal (max.) ambient temperature [C] +25 (+45)

Min. ambient temperature [C] +1

Nominal (max.) inlet air temperature [C] +35 (+55)

Nominal inlet air pressure [barg] 7

Max. inlet air pressure [barg] 14

Air pressure drop - p [bar] 0.19

Inlet - Outlet connections [BSP-F] 3/4

Refrigerant type R134.a (HFC) - CH2F-CF3

Refrigerant quantity [g] 310

Cooling air flow [m

3

/h] 400Standard Power Supply

2 [Ph/V/Hz] 1/230-240/50

Nominal electric absorption [W] 530

[A] 3.1

Max. electric absorption [W] 610

[A] 3.4

Max. level noise at 1 m [dbA] < 70

Weight [kg] 46

1The nominal condition refers to an ambient temperature of +25C with inlet air at 7 barg and +35 C.

2Check the data shown on the identification plate.


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5.1 CONTROL PANEL

The control panel illustrated below is the only dryer-operator interface.

K

2

1

0

1

ON

set

set

1 Main switch

2 DTT11 Electronic Instruments

3 Air and refrigerating gas flow diagram

5.2 OPERATION

The dryer described in this manual basically consists of two separated circuits: a compressed air circuit,divided into two heat exchangers, and a refrigeration circuit.The warm and humid entering air goes through an air-to-air exchanger before entering the evaporator (air-to-refrigerant exchanger) where, due to the contact with the refrigeration circuit, it cools down to allow the

condensation of the humidity it contains. The condensed humidity is than separated and expelled into theseparator.The cooled air goes through the air-to-air exchanger, where it partially warms up in cooling down theentering warm air (pre-refrigeration).The refrigeration circuit needed for these operations is basically composed of a refrigeration compressor, acondenser and the evaporator, also called air-to-refrigerant exchanger.


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5.3 FLOW DIAGRAM

45

1

3

7

6

M

9

V

8

2

P

7a

7b

7c

12 DTT

11

14

13

10

DTT12 11

1 Refrigerating compressor 8 Condenser fan

2 Refrigerant pressure-switch (fan control) PV 9 Temperature probe (DewPoint)

3 Condenser 10 Condensate drain service valve with strainer

4 Dehydration filter 11 Condensate drain solenoid valve

5 Capillary tube 12 DTT11 Electronic Instrument

6 Hot gas by-pass valve 13 FS 018 Inlet Filter (1 micron)

7 Alu-Dry module 14 By-Pass group

7 a - Air-to-air heat exchanger

7 b - Air-to-refrigerant exchanger

7 c - Condensate separator

Compressed air flow direction Refrigerating gas flow direction


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5.4 REFRIGERATING COMPRESSOR

The refrigerating compressor is the pump of the system where the gas coming from the evaporator (lowpressure side) is compressed up to the condensation pressure (high pressure side). All the compressorsused are manufactured by primary companies and are designed for applications where high compressionratios and wide temperature changes are present.The fully sealed construction is perfectly gas tight, so ensuring high-energy efficiency and long useful life.The pumping unit is supported by dumping springs, in order to consistently reduce the acoustic emissionand the vibration diffusion. The electric motor is cooled down by the aspirated refrigerating gas, which goesthrough the coils before reaching the compression cylinders. The internal thermal protection protects thecompressor from over heating and over currents. The protection is automatically restored as soon as thenominal temperature conditions are reached.

5.5 CONDENSER

The condenser is the element in which the gas coming from the compressor is cooled down and condensedbecoming a liquid. Mechanically, it is formed by a copper tubing circuit (with the gas flowing inside)immersed in an aluminium blades package. The cooling operation occurs via a high efficiency axialventilator which, in applying pressure on the air contained within the dryer, forces it into the blades package.Its mandatory that the temperature of the ambient air will not exceed the nominal values. Its as well

important TO KEEP THE UNIT FREE FORM DUST AND OTHER IMPURITIES.

5.6 FS 018 INLET FILTER (1 MICRON)

Positioned at the inlet of the Alu-Dry module, the filter ensures a good degree of purification of the treatedair. The filter element is embodied in the container so as to ensure rapid and easy replacement.

5.7 DEHYDRATION FILTER

Traces of humidity and slag which could accumulate inside the refrigerant circuit, or smudge which couldoccur after a long use of the dryer, could limit the lubrication of the compressor and clog the capillary tube.The function of the dehydration filter, located before the capillary tubing, is to stop the impurities, so

avoiding their circulation within the system.

5.8 CAPILLARY TUBE

It consists of a piece of reduced cross section copper tubing located between the capacitor and theevaporator to form a throttling against the flow of the refrigerating fluid. This throttling creates a pressuredrop, which is a function of the temperature to be reached within the evaporator : the less is the capillarytube outlet pressure, the less is the evaporation temperature.The length and the diameter of the capillary tubing are accurately sized with the performance to be reachedby the dryer; no maintenance/adjustment operations are necessary.

5.9 ALU-DRY MODULE

The air-to-air and the air-to-refrigerant heat exchangers plus the demister type condensate separator arehoused in a unique module. The counter flows of compressed air in the air-to-air heat exchanger ensuremaximum heat transfer. The large cross section of flow channel within the heat exchanger module leads tolow velocities and reduced power requirements.The generous dimensions of the air-to-refrigerant heat exchanger plus the counter flow gas streams allowfull and complete evaporation of the refrigerant (preventing liquid returning to the compressor).The high efficiency condensate separator is located within the heat exchanger module.No maintenance is required and the coalescing effect results in a high degree of moisture separation.


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5.10 HOT GAS BY-PASS VALVE

This valve injects part of the hot gas (taken from the discharge side of the compressor) in the pipe betweenthe evaporator and the suction side of the compressor, keeping the evaporation temperature/pressureconstant at approx. +2 C. This injection prevents the formation of ice inside the dryer evaporator at everyload condition.

ADJUSTMENT

The hot gas by-pass valve is adjusted during the manufacturing testing phase. As a rule noadjustment is required; anyway if it is necessary the operation must be carried out by anexperienced refrigeration engineer.

WARNING : the use of Schrader service valves must be justified by a real malfunction of

the refrigeration system. Each time a pressure gauge is connected, a part of refrigerant is

exhausted.Without compressed air flow through the dryer, rotate the adjusting screw (position A on thedrawing) until the following value is reached :

Hot gas setting (R134.a) : temperature 0.5C (+0.5/-0K)

pressure 2.0 barg (+0.1/-0.1 bar)

A

4 mm5/32 in.

+

-

5.11 REFRIGERANT PRESSURE SWITCH PV

As operation safety and protection of the dryer a pressure switch is installed in gas circuit.

PV : Fan control pressure switch is placed at the discharge side of refrigeration compressor. It keeps thecondensation temperature/pressure constant within preset limits.

Calibrated pressure : R 134.a Start 11 barg (47C) - Stop 8 barg (36C) - Tolerance 1 bar


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5.12 DTT11 ELECTRONIC INSTRUMENT (DIGITAL TIMER THERMOMETER)

set Button - access the set-up.

Button - condensate drain test / value increment.

ON

set

LED -

-

glowing = power on.

flashing = set-up condition.

ON

set

set

DISPLAY

LED - condensate drain solenoid valve on.

The DTT11 controller performs a double function : it shows the current operating DewPoint through thedigital led display and it controls the functioning of condensate drain solenoid valve through the cyclicelectronic timer.

OPERATION -During the dryer operation, the LEDON

set is on.

The 10 LED display indicates the current operating DewPoint, shown by means of a three colours (blue-green-red) bar over the display itself.

Blue section - the operative DewPoint of the dryer is low; Green section - operating conditions ensuring an optimal DewPoint;

Red section - DewPoint of the dryer too high, the treatment of the compressed air may be improper.

The condensate drain solenoid valve is activated for 2 seconds (TON) - LED on - each minute (TOFF), ifstandard setting.

To perform the manual test for the condensate drain, press the button.

The "out of scale" conditions are indicated by the intermittent flashing of the first and the last LED of thedisplay, respectively showing the exceeding of the lower or the upper range.

SET-UP - The DTT11 is adjusted during the final test of the dryer. In case of particular requirements

concerning the operation management, the user can change the setting of the programmed parameters.The parameters which can be set up are the following :

TON- activation time of the condensate drain solenoid valve.

TOFF- pause time between two consecutive activation of the condensate drain solenoid valve.

To access the set-up, keep pressed theset

button for at least 2 seconds;

ON

set LED flashing confirms the command.

First appears the TONparameter; to access the other parameters, press sequentially theset

button.

To change the value of the selected parameter, keep pressed theset

button and operate on button ;the current value is shown on the LED display. For the value range and the resolution (value of each singleLED), see the following table :

Parameter Description Display Value

range

Resolution Set

value

TONActivation time of the

condensate drain solenoid valve

Synchronous flashing

LEDON

set +LED1 - 10 sec 1 sec 2 sec

TOFFPause time of the condensate

drain solenoid valve

Non-synchronous flashing

LEDON

set +LED1 - 10 min 1 min 1 min

To exit the set-up condition in any moment, press the button. In case no operations are made during 2minutes, the system exits automatically the set-up condition.


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6.1 CONTROLS AND MAINTENANCE

The maintenance operations must be worked out by qualified personnel.

Before any intervention, Ensure that:

no part of the machine is poweredand that it cannot be connected to the mains supply.

no part of the machine is under pressureand that it cannot be connected to the compressedair system.

Before attempting any maintenance operation on the dryer, switch it off and wait at least 30minutes. During operation the copper piping connecting the compressor to the condenser canreach dangerous temperature able to burn the skin.

DAILY

Verify that the DewPoint temperature displayed on the DTT11 electronic instruments is correct.

Check the proper operation of the condensate drain systems.

Verify the condenser for cleanliness.

EVERY 100 HOURS

With an air jet (Max. 2 bars) blowing from inside towards outside clean the condenser; repeat

this operation blowing in the opposite way; be careful not to damage the aluminium blades of thecooling package.

Close the manual condensate drain valve, unscrew the mechanical strainer and clean it withcompressed air and a brush. Reinstall the strainer properly tight, and then open the manual valve.

At the end, check the operation of the machine.

EVERY 3000 HOURS

Verify for tightness all the screws of the electric system and that all the Faston typeconnections are in their proper position.

Check the conditions of the condensate drain flexible hoses, and replace if necessary.

At the end, check the operation of the machine.

FS 018 INLET FILTER (1 MICRON)EVERY 3000 HOURS

Depressurize the dryer.

Disconnect the filter from the relevant condensate drainagecircuit.

Unscrew the clogged cartridge.

Clean accurately the filter head, particularly the sealing surfaces.

Lubricate the tightness gasket of the new cartridge. Usemultipurpose grease (SILICON FREE).

Screw the new cartridge firmly by hand to the head of the filter.

Connect the relevant condensate drainage circuit.

Pressurize the plant and check for air leakage.

Screw Unscrew


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6.2 TROUBLESHOOTING

The troubleshooting and the eventual checks have to be worked out by qualified personnel. Payparticular attention in case of interventions on the refrigerating circuit. The refrigerating fluid, ifunder pressure, while expanding could cause freezing burns and serious damage to the eyes,should it get in contact with them.

SYMPTOM POSSIBLE CAUSE - SUGGESTED ACTIONThe dryer doesn't start. Check for mains failure.

Verify the electric wiring.

The compressor doesntwork.

Activation of the compressor internal thermal protection - wait for 30minutes, then retry.

Verify the electric wiring.Replace the internal thermal protection of the compressor.If the compressor still doesnt work, replace it.

The fan of the condenserdoesnt work.

Verify the electric wiring.Pv pressure switch is faulty - contact a refrigeration engineer.If the fan still doesnt work, replace it.

DewPoint too high. The dryer doesn't start - see specific point.The DewPoint probe doesnt correctly detect the temperature - ensure the

sensor is pushed into the bottom of copper tube immersion well.The condenser is dirty - clean it.The dryer doesnt drain the condensate - see specific point.The ambient temperature is too high or the room aeration is insufficient -

provide proper ventilation.The inlet air is too hot - restore the nominal conditions.The condenser fan doesnt work - see specific point.The refrigerating compressor doesnt work - see specific point.The hot gas by-pass valve is out of setting - contact a refrigeration engineer

to restore the nominal setting.There is a leak in the refrigerating fluid circuit - contact a refrigeration engineer.The inlet air pressure is too low - restore the nominal conditions.The inlet air flow rate is higher than the rate of the dryer - reduce the flow

rate - restore the normal conditions.

DewPoint too low. The fan is always ON - Pv pressure switch is faulty - replace it.The hot gas by-pass valve is out of setting - contact a refrigeration engineer

to restore the nominal setting.

Excessive pressure dropwithin the dryer.

The FS 018 Inlet filter - 1 micron is clogged - replace the cartridge.The dryer doesnt drain the condensate - see specific point.The DewPoint is too low - the condensate is frost and blocks the air - see

specific point.

Check for throttling the flexible connection hoses (if installed).

The dryer doesnt drainthe condensate.

The condensate drain service valve is closed - open it.The condensate drain mechanical strainer is clogged - remove and clean it.The drain solenoid valve is jammed - remove and clean it.Verify the electric wiring.The coil of the condensate drain solenoid valve burned out - replace it.The DewPoint is too low - the condensate is frozen - see specific point.The DTT11 Electronic Instrument is faulty - replace it.

The dryer continuouslydrains condensate.

The drain solenoid valve is jammed - remove and clean it.Try to remove the electric connector on the solenoid valve - if drain stop the

DTT11 Electronic Instruments is faulty - replace it.

Water within the line. The dryer is OFF - switch it ON.Untreated air flows through the by-pass group - close the by-pass.The dryer doesnt drain condensate - see specific point.DewPoint too high - see specific point.


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6.3 DISMANTLING OF THE DRYER

If the dryer is to be dismantled, it has to be split into homogeneous groups of materials.

Part Material

Refrigerant fluid R134.a HFC, Oil

Canopy and Supports Carbon steel, Epoxy paint

Refrigeration Compressor Steel, Copper, Aluminium, Oil

Alu-Dry module AluminiumCondenser Unit Aluminium, Copper, Carbon steel

Pipe Copper

Fan Aluminium, Copper, Steel

Valve Brass, Steel

Insulation Material Synthetic gum without CFC, EPS

Electric cable Copper, PVC

Electric Parts PVC, Copper, Brass

We recommend to comply with the safety rules in force for the disposal of each type of material.The chilling fluid contains droplets of lubrication oil released by the refrigerating compressor. Do notdispose this fluid in the environment. Is has to be discharged from the dryer with a suitable device

and then delivered to a collection centre where it will be processed to make it reusable.

7.1 ARTIC 134/EVO DRYER DIMENSIONS (Attachments)

7.2 EXPLODED VIEW

7.2.1 Exploded view of Dryer ARTIC 134/EVO (Attachments)

7.2.2 Exploded view table of components - Dryer ARTIC 134/EVO

1 Alu-Dry Module 10 Switch glower 19 Control panel

2 EPS Insulating jacket 11 DTT11 Electronic Instrument 20 Poly-carbonate panel

3 Hot gas by-pass valve 12 DTT11 Probe - L. 1200 21 Frontal post

4 Refrigerating compressor 13 Refrigerant pressure switch PV 22 Lateral panel

5 Condenser 14 FS 018 Inlet Filter 23 Cover panel

6 Fan motor 15 Compression fitting 3/4" - D16 24 Horizontal galvanized post

7 Fan blade 16 Condensate Drain solenoid valve 25 Back panel

8 Fan grid 17 Coil for cond. Drain solenoid valve

9 Main switch 2P 0/1 18 Front panel

7.3 ELECTRIC DIAGRAM

7.3.1 Electrical Diagram of Dryer ARTIC 134/EVO (Attachments)

7.3.2 Electrical Diagram table of components - Dryer ARTIC 134/EVOIG : Main switch

K : Refrigerating compressor

KT : Compressor thermal protection

KM : Compressor electrical motor

KR : Compressor starting relay

V : Condenser fan

DTT11 : DTT11 Electronic Instrument

PR : DTT11 Temperature probe (DewPoint)

PV : Pressure switch - Fan control

EVD : Condensate drain solenoid valve

BN = BROWN

BU = BLUE

BK = BLACK

YG = YELLOW/GREEN

Documents

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