Atlas Copco FX 41N Instructions for use

ENGLISH
Cod. 9828093398 00 - Edition 10/2020 - 1
Atlas Copco
FX 41N, FX 48N, FX 61N, FX 69N, FX 86N, FX 108N
Instruction book
Original instructions
COPYRIGHT NOTICE
Any unauthorized use or copying of the contents or any part thereof is prohibited.
This applies in particular to trademarks, model denominations, part numbers and drawings.
This instruction book is valid for CE as well as non-CE labelled machines. It meets the
requirements for instructions specified by the applicable European directives as identified in
the Declaration of Conformity.
2020 - 10
No. 9828 0933 98
www.atlascopco.com

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2 - Edition 10/2020 Cod. 9828093398 00 -
INSTRUCTION AND MAINTENANCE MANUAL
DRYERS
FX 41N, FX48N, FX 61N, FX 69N, FX 86N, FX 108N
Code
9828093398
00
Edit. 10/2020
READ THIS MANUAL CAREFULLY BEFORE CARRYING OUT ANY OPERATIONS ON THE
DRYER.

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CONTENTS
PART A: INFORMATION FOR THE USER
1.0 GENERAL CHARACTERISTICS
2.0 INTENDED USE
3.0 OPERATION
4.0 GENERAL SAFETY STANDARDS
5.0 DESCRIPTION OF DANGER SIGNALS
6.0 DANGER ZONES
7.0 SAFETY DEVICES
8.0 POSITION OF PLATES
9.0 DRYERS ROOM
10.0 TRANSPORT AND HANDLING
11.0 UNPACKING
12.0 INSTALLATION
13.0 DIMENSIONS AND TECHNICAL DATA
14.0 MACHINE ILLUSTRATION
15.0 PARTIAL ROUTINE MAINTENANCE
16.0 SCRAPPING THE DRYERS
17.0 TROUBLE-SHOOTING AND EMERGENCY REMEDIES
PART B: INFORMATION RESERVED FOR TECHNICALLY SKILLED PERSONNEL
18.0 STARTING UP
ATTENTION: THERE IS A COPY OF THE WIRING DIAGRAM INSIDE THE ELECTRIC PANEL
ADDRESSES OF ASSISTANCE CENTRES
In the event of breakdown or malfunction of the dryer, switch it off and do not tamper with it. If repairs are needed, apply
only to a technical assistance centre approved by the manufacturer and insist on the use of original spare parts. Failure
to comply with the above may endanger the safety of the machine.
INTRODUCTION
Keep this manual with care for future consultation; the use and maintenance manual is an integral part on the
dryer. Read this manual carefully before carrying out any operations on the dryer.
The installation of the dryer and all operations involving it must be performed in conformity with the regulations
in force concerning electric plants and personal safety.
CHARACTERISTICS AND SAFETY PRECAUTIONS
BEFORE REMOVING THE PROTECTIVE GUARDS TO CARRY OUT ANY MAINTENANCE ON THE MACHINE, SWITCH OFF THE ELECTRIC
POWER SUPPLY AND DISCHARGE THE RESIDUAL PRESSURE INSIDE THE UNIT.
ALL WORK ON THE ELECTRIC PLANT, HOWEVER SLIGHT, MUST BE CARRIED OUT BY PROFESSIONALLY SKILLED PERSONNEL.
The manufacturer does not accept responsibility for damage caused as a result of negligence of failure to abide by the
instructions given above.
THIS MACHINE IS NOT SUITABLE FOR EXTERNAL INSTALLATION
THIS MACHINE CORRESPOND TO THE ESSENTIAL SAFETY REQUIREMENTS FORESEEN FROM THE
EUROPEAN STANDARD (2006/42 CE).
THE LUBRICATING LIQUIDS AND OTHER EVENTUAL FLUIDS MUST NOT BE DISCHARGED IN THE
ENVIRONMENT. THESE POLLUTING AND HAZARDOUS PRODUCTS MUST COMPULSORY BE DISPOSED BY
CHARGING AUTHORISED AND SPECIALISED FIRMS ACCORDING TO THE DIFFERENT TYPOLOGY OF
PRODUCT.
DIFFERENTIATE THE COMPRESSOR COMPONENTS ACCORDING TO THE DIFFERENT CONSTRUCTION
MATERIALS (PLASTIC, COPPER, IRON, OIL FILTER, AIR FILTER ECC…)

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1.0 GENERAL CHARACTERISTICS
The dryer is a chilling machine with direct expansion and dry evaporator.
The air to be dried is sent to the heat exchanger in which the water vapour present is condensed: the condensate
gathers in the separator and is discharged outside through a steam trap.
2.0 INTENDED USE
The dryer has been built to dry the compressed air for industrial use. The dryer cannot be used in premises where there
is a risk of fire or explosion or where work is carried out which releases substances into the environment which are
dangerous with regard to safety (for example: solvents, inflammable vapours, alcohol, etc.).
In particular the appliance cannot be used to produce air to be breathed by humans or used on direct contact with
foodstuffs. These uses are allowed if the compressed air produced is filtered by means of a suitable filtering system
(Consult the manufacturer for these special uses.)
This appliance must be used only for the purpose for which it was specifically designed. All other uses are to be
considered incorrect and therefore unreasonable. The Manufacturer cannot be held responsible for any damage resulting
from improper, incorrect or unreasonable use.
3.0 OPERATION
The gaseous refrigerant coming from the evaporator (4) is sucked by the refrigeration compressor (1) and it is pumped
into the condenser (2). This one allows its condensation, eventually with the help of the fan (3); the condensed refrigerant
passes through the dewatering filter (8) and it expands through the capillary tube (7) and goes back to the evaporator
where it produces the refrigerating effect.Due to the heat exchange with the compressed air which passes through the
evaporator against the stream, the refrigerant evaporates and goes back to the compressor for a new cycle.
The circuit is equipped with a bypass system for the refrigerant; this intervenes to adjust the available refrigerating
capacity to the actual cooling load. This is achieved by injecting hot gas under the control of the valve (9): this valve
keeps constant the pressure of the refrigerant in the evaporator and therefore also the dew point never decreases below
0 °C in order to prevent the condensate from freezing inside the evaporator. The dryer runs completely automatically.
DRYER FLOW DIAGRAM
1) REFRIGERANT COMPRESSOR
8) REFRIGERANT FILTER
2) CONDENSER
9) HOT GAS BYPASS VALVE
3) MOTOR FAN
10) AIR-TO-AIR EXCANGER
4) EVAPORATOR
11) DIGITAL CONTROLLER
5) DEMISTER CONDENSATE SEPARATOR
13) CONDENSATE DRAIN
6) IMPURITY TRAP
7) EXPANSION CAPILLARY TUBE
4.0 GENERAL SAFETY STANDARD
The appliance may be used only by specially trained and authorized personnel.
Any tampering with the machine or alterations not approved beforehand by the Manufacturer relieve the latter of
responsibility for any damage resulting from the above actions.
The removal of or tampering with the safety devices constitutes a violation of the European Standards on safety.
ALL WORK ON THE ELECTRIC PLANT, HOWEVER SLIGHT, MUST BE CARRIED OUT BY PROFESSIONALLY SKILLED PERSONNEL.
AIR OUTLET
AIR INLET
CONDENSATE
DRAIN

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5.0 DESCRIPTION OF DANGER SIGNALS
1) Dangerous
Electric voltage
2) Air not fit for
breathing
3) High pressure
4) Fan rotating
5) Hot parts
6.0 DANGER ZONES
6.1 DANGER ZONES
(1)
(2)
(3)
(4)
Risks present on the whole machine
7.0 SAFETY DEVICES
7.1 SAFETY DEVICES
1) Cooling fan shield
2) Earth
FIG. 3
2
1
FIG. 2
1
2
1
3
1
4
3
1

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8.0 POSITION OF PLATES
8.1 POSITION OF THE DANGER PLATES (Fig. 4)
The plates fitted on the compressor unit are part of the machine; they have been applied for safety purposes and must
not be removed or spoiled for any reason.
Ref.1 - Spare plate Code 1079 9903 48
8.2 POSITION OF THE DATA PLATES (Fig. 4)
Ref. 2) “IN”
Ref. 4) Identification plate
Ref. 3) “OUT”
9.0 DRYERS ROOM
9.1 FLOOR
The floor must be even and of industrial type; the total weight of the machine is shown in Fig. 5
Remember the total weight of the machine when positioning it.
9.2 VENTILATION
The choice of an appropriate room will prolong the life of your dryer; the room must be spacious, dry, well ventilated and
free from dust.
The operating conditions to be complied with are the following:
Min. room temperature: + 5 °C (+41°F) (compulsory)
Min. temperature of incoming air: 10 °C (+34°F)
Max. room temperature: + 43 °C (110°F) (compulsory)
Max. working pressure: 14 bar (203 psi)
Max. temperature of incoming air: 55 °C (131°F)
⚫Please keep environmental conditions stable (temperature and humidity) in order to avoid refrigerant compressor/fan
overload and/or reduction of dryer performance. Similar failures shall affect warranty reimbursements.
⚫Please ensure the appropriate composition of the air within the machine room: - clean with no damaging contaminants
(e.g., dust, fibers, fine sand) - free of explosive or chemically unstable gases or vapors - free of acid/alkaline forming
substances, particularly ammonia, chlorine or hydrogen sulfide. Similar failures shall affect warranty reimbursements.
⚫Please remember that we do not recommend the application of duct to extract air in presence of axial fans.
10.0 TRANSPORT AND HANDLING
The machine must be transported as shown in the following figures.
11.0 UNPACKING
CUTTING THE METAL STRAPPING IS A DANGEROUS OPERATION, DO NOT ABANDON THE CUT PIECES IN THE
ENVIRONMENT.
After removing the packing, ensure that the machine is unbroken and that there are no visibly damaged parts.
If you are in doubt, do not use the machine but apply to the manufacturer technical assistance service or to your dealer.
The packing material (plastic bags, polystyrene foam, nails, screws, wood, metal strapping, etc.) must not be left within
the reach of children or abandoned in the environment, as they are a potential source of danger and pollution.Dispose of
these materials in the approved collection centres.
FIG. 4
1
1079 9903 48
3
1
2
4
FIG. 5
TYPE
NET WEIGHT
Kg.
FX 41N
62 (137)
FX 48N
62 (137)
FX 61N
60 (132)
FX 69N
62 (137)
FX 86N
82 (181)
FX 108N
82 (181)

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12.0 INSTALLATION
12.1 POSITIONING
After unpacking the equipment and preparing the dryers room, put the machine into position, checking the following
items:
⚫ensure that there is sufficient space around the machine to allow maintenance (see Fig. 6).
ENSURE THAT THE OPERATOR CAN SEE THE WHOLE MACHINE FROM THE CONTROL PANEL AND CHECK THE PRESENCE OF ANY
UNAUTHORIZED PERSONS IN THE VICINITY OF THE MACHINE.
12.2 ELECTRICAL CONNECTION
⚫Check that the supply voltage is the same as the value indicated on the machine data plate.
⚫Check the condition of the line leads and ensure that there is an efficient earth lead.
⚫Ensure that there are disconnector switch Ref. 1 Fig. 6 and fuses upstream the machine. For details (size and
type) see wiring/service diagram.
ONLY PROFESSIONALLY SKILLED PERSONNEL MAY HAVE ACCESS TO THE ELECTRIC PANEL. SWITCH OFF THE POWER BEFORE
OPENING THE DOOR OF THE ELECTRIC PANEL. COMPLIANCE WITH THE REGULATIONS IN FORCE CONCERNING ELECTRIC PLANTS
IS FUNDAMENTAL FOR OPERATOR SAFETY AND FOR THE PROTECTION OF THE MACHINE.
12.3 CONNECTION TO THE COMPRESSED AIR NETWORK
Fit a manual interception valve Ref. 1 between the machine and the compressed air network so that the dryer may be
isolated during maintenance operations (see figure 7 ).
Drainage of condensate Rif. 2 Fig. 7 (automatic) are led outside the machine with a flexible pipe that may be inspected.
Drainage must comply with the local regulations in force.
⚫All refrigerant dryers shall be equipped with proper pre-filter at closest position to dryer air inlet (to be replaced
according to service plan: once per year or even before in case of particular high humidity ambient conditions).
ALL DAMAGE DUE TO THE FAILURE TO COMPLY WITH THESE NDICATIONS CANNOT BE ATTRIBUTED TO THE MANUFACTURER AND
MAY CAUSE INVALIDITY OF THE GUARANTEE CONDITIONS.
12.4 STARTING UP
See part B of this manual, Chpter 18.0
FIG. 6
ATTENTION:
THE DISCONNECTOR SWITCH REF. 1 AND THE
FUSES ARE NOT SUPPLIED WITH THE MACHINE.
Minimum mt. 1,5 (59 in)
1
FIG. 7
1
2

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13.0 DIMENSIONS AND TECHNICAL DATA
TYPE
Weight
Kg. (lb)
Freon R410A
Kg. (lb)
Nominal
Power W (hp)
bar (psi)
MAX.
230/60 Hz
115/60 Hz
230/60 Hz
115/60 Hz
230/60 Hz
115/60 Hz
230/60 Hz
115/60 Hz
FX 41N
62 (137)
0,6 (1,32)
0,6 (1,32)
849 (1,13)
880 (1,18)
95 (0,13)
105 (0,14)
944 (1,26)
985 (1,32)
bar 14 (203)
FX 48N
62 (137)
0,6 (1,32)
0,6 (1,32)
849 (1,13)
880 (1,18)
95 (0,13)
105 (0,14)
944 (1,26)
985 (1,32)
bar 14 (203)
FX 61N
60 (132)
-
0,6 (1,32)
-
892 (1,96)
-
105 (0,14)
-
997 (1,34)
bar 14 (203)
FX 69N
62 (137)
0,6 (1,32)
0,6 (1,32)
1400 (1,88)
1395 (1,87)
100 (0,13)
105 (0,14)
1500 (2,01)
1500 (2,01)
bar 14 (203)
FX 86N
82 (181)
0,8 (1,76)
-
1444 (1,94)
-
190 (0,26)
-
1634 (2,20)
-
bar 14 (203)
FX 108N
82 (181)
0,75 (1,65)
0,75 (1,65)
1762 (2.37)
-
190 (0,26)
-
1952 (2,62)
-
bar 14 (203)
Reference conditions:
Limit conditions:
Ambient temperature 25 °C (77°F)
Max. ambient temperature 43 °C (110°F)
Inlet air temperature 35 °C (95°F)
Min. ambient temperature 5 °C (41°F)
Working pressure 7 bar (101,5 psi)
Max. inlet air temperature 55 °C (131°F)
Max. working pressure 14 bar (203 psi)
14.0 MACHINE ILLUSTRATION
14.1 GENERAL LAY-OUT
Nominal
Power
W (hp)
TYPE
A
B
FX 41N
1”1/2 GAS F.
1”1/2 GAS F.
FX 48N
1”1/2 GAS F.
1”1/2 GAS F.
FX 61N
1”1/2 GAS F.
1”1/2 GAS F.
FX 69N
1”1/2 GAS F.
1”1/2 GAS F.
FX 86N
1”1/2 GAS F.
1”1/2 GAS F.
FX 108N
1”1/2 GAS F.
1”1/2 GAS F.
TYPE
L
W
H
FX 41N
460 (18,11)
557 (21,93)
789 (31,06)
FX 48N
460 (18,11)
557 (21,93)
789 (31,06)
FX 61N
460 (18,11)
557 (21,93)
789 (31,06)
FX 69N
460 (18,11)
557 (21,93)
789 (31,06)
FX 86N
580 (22,83)
557 (21,93)
899 (35,39)
FX 108N
580 (22,83)
557 (21,93)
899 (35,39)
Nominal
Power
W (hp)
Refrigerant gas (1)
GWP 100 (2)
R-410A
2088
(1) According to ISO 817
(2) According to EN-378-1
(A) AIR INLET
(B) AIR OUTLET
ELECTRICAL CABLE
CONDENSATE
DRAINING
H
W
L
FIG. 8
6
4
5
2
7
8
1
3
1
Refrigerant compressor
2
Condenser
3
Motor fan
4
Evaporator
5
Condensate drain
6
Hot gas by-pass valve
7
Refrigerant filter
8
Expansion capillary tube

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14.2 COMMAND AND CONTROL PANEL
BEFORE CARRYING OUT THE OPERATION TEST, READ CAREFULLY AND ACQUIRE A GOOD KNOWLEDGE OF THE COMMAND
FUNCTIONS.
Front panel of the controller
Reference
Name
1
Alarm icon
2
Refrigerant compressor icon
3
Fan icon
4
PDP (dewpoint) temperature
5
Unit (°C or °F)
6
Alarm LED
7
Button to snooze or to reset the alarm
8
SET button
9
UP button
10
DOWN buttom
8+9
Back to previous screen
8+10
Menu
ICONS
ICON
NAME
MODE
FUNCTIONS
Alarm
OFF
No active alarms
ON
Probe failure alarm
ON
High/Low temperature alarm
ON
Service alarm
Refrigerant
compressor
OFF
Dryer off
ON
Dryer on
Flashing + SE
Maintenance warning
Flashing + L2
Dewpoint too low / Dryer is stopped
Flashing + Countdown
Residual time before start
Flashing + H3
Too high discarge temperature of the refrigerant compressor
(see “H3” pag. 12) Dryer is stopped
Fan
OFF
Fan off
Flashing
Not applicable
ON
Fan on
STARTING DRYERS
Flashing: countdown before starting the refrigerant compressor for internal pressure balancing (180 seconds).
FIG. 9

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REMOTE ALARM FUNCTION
The controller allows to remotely control a number of alarms. This is managed by means of a free NC (Normally Closed)
contact.
The contact opens in case of an alarm or when the dryer is switched off.
Refer to the table below to identify the availability of the function and refer to the related picture Fig. 9a Ref. 1 to identify
the physical location of the free contact connector.
Is possible remote alarm for P1, P2, P3, L2, H2 and H3. For the details of alarm see Cap. 17.1 Pag. 12.
Location of the free contact connector (1)
FIG. 9a

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15.0 PARTIAL ROUTINE MAINTENANCE
BEFORE CARRYING OUT ANY MAINTENANCE JOBS IT IS OBLIGATORY TO STOP THE MACHINE AND DISCONNECT IT FROM THE
POWER MAINS AND FROM THE COMPRESSED AIR DISTRIBUTION NETWORK.
15.1 MAINTENANCE SCHEDULE
These maintenance intervals are recommended for work environments that are not dusty and are will ventilated. For
particularly dusty environments, double the frequency of controls.
Each Week
Condensate drain: Clean the filter of the steam trap
Each Monthly
Condenser: Clean the condenser fins to remove eventual dust.
15.2 CLEANING OF THE AUTOMATIC CONDENSWATER DISCARGER FILTER (Fig. 10)
Clean the filter of the steam trap.
Proceed as follows:
- Close the valve Ref. 1 Fig. 10
- Release the pressure in the dryer by pressing the condensate drain “TEST” pushbutton locate on the steam trap
Ref. 2 Fig. 10.
- Switching the rocker switch in “0” position Ref. 3 Fig. 10
- Turn off the supply (see disconnector switch Ref. 4 Fig. 10)
HOT PARTS INSIDE
- Remove the panels Ref. 5
- Remove the stopper Ref. 6
- Remove the filter Ref. 7
- Clean the filter Ref. 5 with a jet of air, working from inside to outside
- Install the filter, fix the plug Ref. 7 - 6
- Close the panels Ref. 5
15.3 CLEANING THE CONDENSER (Fig. 10)
The condenser must be cleaned every month.
Proceed as follows:
- Switching the rocker switch in “0” position Ref. 3 Fig. 10
- Turn off the supply (see disconnector switch Ref. 4 Fig. 10)
- Remove the panels Ref. 5 Fig. 10
- Clean the condenser fins Ref. 1 with compressed air (Fig. 10) DO NOT USE WATER OR SOLVENTS
- Close the panels Ref. 5 Fig. 10
1
FIG. 10
6
7
3
4
2
5

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16.0 SCRAPPING THE UNIT
If the machine is to be scrapped, it must be dismantled into parts of the same material, to be disposed of according to the
local regulations in force.
ALWAYS RESPECT THE REGULATIONS IN FORCE FOR DISPOSING OF OLD OIL AND OTHER POLLUTING MATERIALS SUCH AS
INSULATING FOAM, ETC.
17.0 TROUBLE-SHOOTING AND EMERGENCY REMEDIES
ALL WORK MUST BE CARRIED OUT BY PROFESSIONALLY SKILLED PERSONNEL. BEFORE CARRYING OUT ANY MAINTENANCE
JOBS IT IS OBLIGATORY TO STOP THE MACHINE AND DISCONNECT IT FROM THE POWER MAINS.
N.B. OPERATIONS MARKED ◼◼MUST BE CARRIED OUT BY PROFESSIONALLY SKILLED PERSONNEL APPROVED THE
MANUFACTURER
FAULT FOUND
POSSIBLE CAUSES
OBSERVATIONS
1) No compressed air passes through the dryer
outlet
1A) The pipes are frozen inside
◼◼ -The bypass valve of the hot gas is broken or
out-of-calibration
-The room temperature is too low and the
evaporators piping are obstructed with ice
2) Presence of condensate in the pipings.
2A) The condensate separator does not work
correctly
2B) The dryer is working outside its rating
2C) The dryer is working under bad conditions of
condensation
-Clean the filter from the condensate drain
◼◼-Check the condensate drain
-Check the flow rate of treated air
-Check the room temperature
-Check the air temperature at the drier inlet.
-Clean the condenser.
◼◼-Check the good operation of the fan.
3) The compressor head is very hot
See 2B above
See 2C above
3A) The cooling circuit is not working with the right
gas charge
◼◼ - See allarm “H3” pag. 12
◼◼ -Check if there are leaks of refrigerating gas.
◼◼ - Charge it again.
4) Motor cuts out on overload
See 2B above
See 2C above
See 3A above
5) The motor hums and does not start.
The line voltage is too low.
The starting system of the motor is defective.
-Contact the electric power company
◼◼ -Check the running capacitor
6) The machine has stopped and does not restart
even after a few minutes.
The overload protection has tripped: make
reference to 2B-2C-3A.
The motor is burned.
7) The compressor is very noisy.
Troubles with the internal mechanical parts or
with the valves

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17.1 TROUBLE-SHOOTING AND EMERGENCY REMEDIES
N.B. OPERATIONS MARKED ◼◼MUST BE CARRIED OUT BY PROFESSIONALLY SKILLED PERSONNEL APPROVED THE
MANUFACTURER

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EE ALARM
EE alarm is shown when internal EPROM errors happens, if this warning will appear, the dryer will stop running. The error can be reset by pressing
one of the four buttons of the controller, anyway please replace the controller itself.
NOTE: In case of EE alarm please contact your tech support.
SE ALARM
After 6000Hrs, the controller will issue a “SE” warning. This is the maintenance due warning.
FREEZE PROTECTION FUNCTION
Once the digital controller detects a dewpoint temperature below -2°C (28,4°F) during more than 2 minutes (L2 Alarm), it
switches off the refrigerant compressor.
AUTOMATIC CUT OUT OF REFRIGERANT COMPRESSOR
If the refrigerant temperature detected at the delivery pipe of refrigerant compressor overcome the limit setted by
manufacturer, the controller stops the refrigerant compressor in order to avoid further possible failure.
COMPRESSOR RE-START AFTER A STOP
If freezing or superheating alarm occurs,the controller stops the compressor and the re-start has to be manualy
activated.
Before re-starting the dryer, it is necessary to identify the root cause; such alarms indicate possible failure it is necessary
to call customer center. Restart the dryer without a deep investigation on possible root cause will affect the reliability of
the dryer and overrule the warranty reimborsment.
Press button Ref. 7 Fig. 9 to reset the alarm.
The dryer restarts when both the following conditions are satisfied:
•The dewpoint temperature is higher than -2°C (28,4°F)
•180 seconds are elapsed from the refrigerant compressor stop (minimum balancing pressure stop time).
A countdown is available if the reset is made before the minimum stop time.
SILENT ALARM FUNCTION
To snooze the alarm, press button Ref. 7 (See Fig. 9)

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How to reset the maintenance warning: follow steps 1 to 12
1
PDP is flashing between standard view
and “SE” alarm
2
Push and hold buttons “SET” and
“DOWN” to enter in the menu.
3
Message “SE” appears on display.
4
Push and release button “UP”.
5
Message “rS” appears on display.
6
Push and release button “SET”.
7
Message “n” appears on display.
8
Push and release button “UP”.
9
Message “y” appears on display.
10
Push and release “SET” to reset
service alarm.
11
Message “y” blinks for 3 seconds.
12
Then “rL” is fixed and “°C” blinks on
display for ~10 seconds.
Service alarm is reset
UP
DOWN
SET

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PROCEDURE TO SET THE SERVICE INTERVAL ON PDP DEVICE
1
PDP is showing standard view.
2
Push and hold buttons “SET” and
“DOWN” to enter in the menu.
3
Message “SE” appears on display.
4
Push and release “SET” to enter in the
“SE” menu.
5
Current service interal is displayed.
(“60” or different value from “0” to
“99”)
6
Select desired service interval using
“UP” or “DOWN”.
(40=4000h, 55=5500h, 80=8000h,…)
7
Push and release “SET” to configure
new service interval.
8
Value selected blinks for 3 seconds.
9
Then “rS” is fixed and “°C” blinks on
display for ~10 seconds.
New service interval is set
UP
DOWN
SET

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PART “B”
THIS PART “B” OF THE INSTRUCTIONS MANUAL IS RESERVED FOR
PROFESSIONALLY SKILLED PERSONNEL APPROVED THE MANUFACTURER.
18.0 STARTING UP
BEFORE CARRYING OUT ANYOPERATION ON THE MACHINE, ENSURE THAT THE ELECTRIC POWER SUPPLY HAS BEEN
DISCONNECTED
18.1 PRELIMINARY CONTROLS
Before starting the dryer, check:
- The correct connection to the compressed air piping: remember to remove eventual caps on the drier inlet and outlet.
- The correct connection to the condensate drainage system.
- That the power supply is right.
18.2 STARTING AND STOP
Start the system before the air compressor starts running and stop it after the air compressor has been stopped. The
compressed air piping will be free of condensate only by doing so. The drier must be kept running during all the time the
air compressor is running. WARNING: if the drier is switched off, before starting it again, wait at least 5 minutes in order
to allow the pressure balancing.
BEFORE CARRYING OUT ANY MAINTENANCE JOBS IT IS OBLIGATORY TO STOP THE MACHINE AND DISCONNECT IT FROM THE
POWER MAINS AND FROM THE COMPRESSED AIR DISTRIBUTION NETWORK.
PRESSURE DISCHARGE PROCEDURE
Proceed as follows:
- Close the taps Ref. 1 Fig. 11
- Release the pressure in the dryer by pressing the condensate drain “TEST” pushbutton locate on the steam trap
Ref. 2 Fig. 11
- Switching the rocker switch in “0” position Ref. 3 Fig. 11
- Turn off the supply (see disconnector switch Ref. 4 Fig. 11)
1
FIG. 11
3
4
2

ENGLISH
18 - Edition 10/2020 Cod. 9828093398 00 -
CALIBRATIONS
BYPASS VALVE FOR HOT GAS
N.B.These valves have already been calibrated and they do not require any adjistment. A dew point different from the
rated one generally depends on causes which are not attributable to their operation.
Ref. 1) Closing cap
Ref. 2) Adiusting screw
WORKING PRESSURES AND TEMPERATURES OF R410A
SUCTION SIDE OF
REFRIGERATION COMPRESSOR
Evaporat.
Temperat.
°C (°F)
Evaporating
Pressure bar (psi)
RATED VALUES
Temperat. 20 °C
(68°F)
1 ÷ 2
(33,8 ÷ 35,6)
R410A
7,28 ÷ 7,55
(106 ÷ 110)
2
1