Refrigerating air dryer

Air – water cooled

EN - User’s maintenance and spare parts manual

74MD0005A0-EN_00
Dear Customer,
thank you for choosing our product. In order to get the best performances out of this product, please read
this manual carefully.
To avoid incorrect operation of the equipment and possible physical risk to the operator, please read and
strictly 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 ACT series refrigerated air dryer undergoes a rigorous test to ensure the
absence of any manufacturing faults and to demonstrate that the device can perform all the 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 for
use without any further adjustment. The operation is fully automatic, and the maintenance is limited to few
controls and some cleaning operations, 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.

2 – EN ACT 180 – 1500

Contents
1 Identification plate 5
2 Warranty conditions 5
3 Safety rules 6
3.1 Definition of the conventional signs used in this manual 6
3.2 Warnings 7
3.3 Proper use of the dryer 7
3.4 Instructions for the use of pressure equipment according to PED directive 2014/68/EU 8
4 Installation 8
4.1 Transport 8
4.2 Storage 8
4.3 Installation site 9
4.4 Installation layout 9
4.5 Correction factors 10
4.6 Connection to the compressed air system 11
4.6.1 Inlet / outlet flanged air connections (only ACT 180 – 360) 11
4.7 Connection to the cooling water network (Water-Cooled) 12
4.8 Electrical connections 13
4.9 Condensate drain 14
5 Start-up 14
5.1 Preliminary operation 14
5.2 First start-up 15
5.3 Start-up and shut down 16
6 Technical data 17
6.1 Technical data ACT 180 – 1500 3/400/50 17
6.2 Technical data ACT 180 – 1500-R 3/460/60 18
6.3 Technical data ACT 180 – 1500-F 3/380/60 19
7 Technical description 20
7.1 Control panel 20
7.2 Operation 20
7.3 Flow diagram (Air-Cooled) 21
7.4 Flow diagram (Water-Cooled) 21
7.5 Refrigerating compressor 22
7.6 Condenser (Air-Cooled) 22
7.7 Condenser (Water-Cooled) 22
7.8 Condenser water regulating valve (Water-Cooled) 22
7.9 Filter dryer 22
7.10 Capillary tube 23
7.11 Alu-Dry module 23
7.12 Hot gas by-pass valve 23
7.13 Refrigerant pressure switches LPS – HPS 24
7.14 Compressor crankcase heater 24
7.15 Electronic instrument DMC24 25
7.15.1 How to switch on the dryer 26
7.15.2 How to switch off the dryer 26
7.15.3 How to display the operating parameters – INFO Menu 26
7.15.4 How a service warning is displayed 27
7.15.5 How an alarm is displayed 28
7.15.6 How to show the alarm memory – LOG Menu 29
7.15.7 How to control dryer with remote control 29
7.15.8 Operation of the failure / alarm dry contact (potential free) 29
7.15.9 Connection to serial line 29
7.15.10 How to change operating parameters – SETUP Menu 30
7.16 Electronic drainer 31
8 Maintenance, troubleshooting, spare parts and dismantling 32
8.1 Checks and maintenance 32
8.2 Troubleshooting 33
8.3 Spare parts 38
8.4 Maintenance operation on the refrigeration circuit 39
8.5 Dismantling of the dryer 39
9 Attachments 40
Exploded views – List of components 40
Electric diagrams – List of components 40
9.1 Dryers dimensions 41

ACT 180 – 1500 3 – EN

9.1.1 ACT 180 – 360 41
9.1.2 ACT 400 – 720 42
9.1.3 ACT 900 - 1100 43
9.1.4 ACT 1200 – 1500 44
9.2 Exploded views 45
9.2.1 ACT 180 – 360 Air Cooled 45
9.2.2 ACT 180 – 360 Water Cooled 46
9.2.3 ACT 400 – 720 Air Cooled 47
9.2.4 ACT 400 – 720 Water Cooled 48
9.2.5 ACT 900 – 1100 Air Cooled 49
9.2.6 ACT 900 – 1100 Water Cooled 50
9.2.7 ACT 1200 – 1500 Air Cooled 51
9.2.8 ACT 1200 – 1500 Water Cooled 52
9.3 Electric diagrams 53
9.3.1 ACT 180 – 360 Sheet 1 of 3 53
9.3.2 ACT 180 – 360 Sheet 2 of 3 54
9.3.3 ACT 180 – 360 Sheet 3 of 3 55
9.3.4 ACT 400 – 720 Sheet 1 of 4 56
9.3.5 ACT 400 – 720 Sheet 2 of 4 57
9.3.6 ACT 400 – 720 Sheet 3 of 4 58
9.3.7 ACT 400 – 720 Sheet 4 of 4 59
9.3.8 ACT 900 – 1500 Sheet 1 of 7 60
9.3.9 ACT 900 – 1500 Sheet 2 of 7 61
9.3.10 ACT 900 – 1500 Sheet 3 of 7 62
9.3.11 ACT 900 – 1500 Sheet 4 of 7 63
9.3.12 ACT 900 – 1500 Sheet 5 of 7 64
9.3.13 ACT 900 – 1500 Sheet 6 of 7 65
9.3.14 ACT 900 – 1500 Sheet 7 of 7 66

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4 – EN ACT 180 – 1500

 Identification plate
1 Identification plate
The identification plate is located on the back of the dryer and shows all the primary data of the machine.
This data should always be referred to when calling the manufacturer or distributor. The removal or
alteration of the identification plate will void the warranty rights.

2 Warranty conditions
For 12 months from the installation date, but no longer than 14 months from the delivery date, the warranty
covers eventual faulty parts, which will be repaired or replaced free of charge, except the travel, hotel and
restaurant expenses of our engineer.
The warranty doesn’t cover any responsibility for direct or indirect damages to persons, animals or
equipment caused by improper usage or maintenance, and it’s limited to manufacturing faults only.
The right to warranty repairs is subordinated to the strict compliance with the installation, use and
maintenance 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.

ACT 180 – 1500 5 – EN

 Safety rules
3 Safety rules

3.1 Definition of the conventional signs used in this manual

Carefully read instruction manual before attempting any service or maintenance procedures on the dryer.

Caution warning sign. Risk of danger or possibility of damage to equipment, if related text is not followed
properly.

Electrical hazard. Warning message indicates practices or procedures that could result in personal injury or
fatality if not followed correctly.

Danger hazard. Part or system under pressure.

Danger hazard. High temperature conditions exist during operation of system. Avoid contact until system or
component has dissipated heat.

Danger hazard. Treated air is not suitable for breathing purposes; serious injury or fatality may result if
precautions are not followed.

Danger hazard: In case of fire, use an approved fire extinguisher, water is not an acceptable means in cases
of fire.

Danger hazard. Do not operate equipment with panels removed.

Maintenance or control operation to be performed by qualified personnel only [1].

ARIA
AIR
LUFT Compressed air inlet connection point
AIR

ARIA
AIR
LUFT Compressed air outlet connection point
AIR

Condensate drain connection point

Cooling water inlet connection point (Water-Cooled)

Cooling water outlet connection point (Water-Cooled)

Operations which can be performed by the operator of the machine, if qualified [1].

NOTE: Text that specifies items of note to be taken into account does not involve safety precautions.
In designing this unit a lot of care has been devoted to environmental protection:
• CFC free refrigerants
• CFC free insulation parts
• Energy saving design
• Limited acoustic emission
• Dryer and relevant packaging composed of recyclable materials
This symbol requests that the user heed environmental considerations and abide with suggestions annotated
with this symbol.

[1] Experienced and trained personnel familiar with national and local codes, capable to perform the needed activities, identify and
avoid possible dangerous situations while handling, installing, using and servicing the machine. Ensuring compliance to all statutory
regulations.

6 – EN ACT 180 – 1500

 Safety rules
3.2 Warnings
Compressed air is a highly hazardous energy source.
Never work on the dryer with pressure in the system.
Never point the compressed air or the condensate drain outlet hoses towards anybody.
The user is responsible for the proper installation of the dryer. Failure to follow instructions given in the
“Installation” chapter will void the warranty. Improper installation can create dangerous situations for
personnel and/or damages to the machine could occur.
Only qualified personnel are authorized to service electrically powered devices. Before attempting
maintenance, the following conditions must be satisfied:
• Ensure that main power is off, machine is locked out, tagged for service and power cannot be
restored during service operations.
• Ensure that valves are shut and the air circuit is at atmospheric pressure. De-pressurize the dryer.
These refrigerating air dryers contain R407C HFC type refrigerant fluid. Refer to the specific paragraph -
maintenance operation on the refrigerating circuit.
Warranty does not apply to any unit damaged by accident, modification, misuse, negligence or
misapplication. Unauthorized alterations will immediately void the warranty.

In case of fire, use an approved fire extinguisher, water is not an acceptable means in cases of electrical fire.

3.3 Proper use of the dryer

This dryer has been designed, manufactured and tested for the purpose of separating the humidity normally
contained 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 bear
responsibility for any resulting damage.
Moreover, the correct use requires the adherence to the installation instructions, specifically:
• Voltage and frequency of the main power.
• Pressure, temperature and flow-rate of the inlet air.
• Pressure, temperature and cooling water capacity (Water-Cooled).
• Ambient temperature.
This dryer is supplied tested and fully assembled. The only operation left to the user is the connection to the
plant 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 in compressed air.

The dried air cannot be used for breathing purposes or for operations leading to direct contact with foodstuff.
This dryer is not suitable for the treatment of dirty air or of air containing solid particles.

ACT 180 – 1500 7 – EN

 Installation
3.4 Instructions for the use of pressure equipment according to PED directive 2014/68/EU
To ensure the safe operation of pressure equipments, the user must conform strictly to the above directive and the
following:
1. The equipment must only be operated within the temperature and pressure limits stated on the manufacturer’s data
nameplate.
2. Welding on heat-exchanger is not recommended.
3. The equipment must not be stored in badly ventilated spaces, near a heat source or inflammable substances.
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 manufacturer’s data nameplate 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.
8. Do not apply weights or external loads on the vessel or its connecting piping.

TAMPERING, MODIFICATION AND IMPROPER USE OF THE PRESSURE EQUIPMENT ARE

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

4 Installation

4.1 Transport
Check for visible loss or damage, if no visible damage is found place the unit near to the installation point and unpack
the contents.
• To move the packaged unit we recommend using a suitable trolley or forklift truck. Hand carrying is not
recommended
• Always keep the dryer in the upright vertical position. Damage to components could result if unit is laid on its
side or if placed upside down.
• Handle with care. Heavy blows could cause irreparable damage.

4.2 Storage
Even when packaged, keep the machine protected
from severity of the weather.
Keep the dryer in vertical position, also when stored.
Turning it upside down some parts could be
irreparably damaged.
If not in use, the dryer can be stored in its packaging
in a dust free and protected site at a maximum
temperature of +1°C … +50°C, and a specific
humidity not exceeding 90%. Should the stocking time
exceed 12 months, please contact the manufacturer.
SCC0001

The packaging materials are recyclable. Dispose of material in compliance with the rules and
regulations in force in the destination country.

8 – EN ACT 180 – 1500

 Installation
4.3 Installation site
Failure to install dryer in the proper ambient conditions will affect the dryer’s ability to condense refrigerant
gas. This can cause higher loads on the compressor, loss of dryer efficiency and performance, overheated
condenser fan motors, electrical component failure and dryer failure due to the following: compressor loss,
fan motor failure and electrical component failure. Failures of this type will affect warranty considerations.
Do not install dryer in an environment of corrosive chemicals, explosive gasses, poisonous gasses; steam
heat, areas of high ambient conditions or extreme dust and dirt.

In case of fire, use an approved fire extinguisher, water is not an acceptable means in cases of fire.

Minimum installation requirements:

• Select a clean dry area, 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 +1°C.
• Maximum ambient temperature +50°C.
• Ensure a proper cooling air replacement.
• Allow a sufficient clearance on each side of the dryer for proper ventilation and to facilitate maintenance
operations.
The dryer does not require attachment to the floor surface.
Do not block, even partially, ventilation grid.
Avoid any possible re-circulation of the exhaust cooling air.
Protect the dryer from air drafts or forced cooling air conditions.

4.4 Installation layout

1 Air compressor
2 Aftercooler
3 Condensate separator
4 Pre-Filter (min. 5 micron)
5 By-pass group
6 Dryer
7 Compressed air tank
8 Final filter
9 Condensate drain

In case of heavily polluted inlet air (ISO 8573.1 class 3.-.3 or worse quality), we recommend the
additional installation of a pre-filter (5 micron minimum) to prevent a clogging of the heat exchanger.

Type A installation is suggested when the compressor operates at reduced intermittence and the total consumption
equals the compressor flow rate.
Type B installation is suggested when the air consumption can consistently change with peak values highly exceeding
the flow rate of the compressors. The capacity of the tank must be sized in order to compensate eventual
instantaneous demanding conditions (peak air consumption).

ACT 180 – 1500 9 – EN

 Installation
4.5 Correction factors
Correction factor for operating pressure changes:
Inlet air pressure barg 4 5 6 7 8 10 12 14
Factor (F1) 0.77 0.86 0.93 1.00 1.05 1.14 1.21 1.27

Correction factor for ambient temperature changes (Air-Cooled):

Ambient temperature ºC 25 30 35 40 45 50
Factor (F2) 1.00 0.96 0.90 0.82 0.72 0.60

Correction factor for inlet air temperature changes:

Air temperature ºC 25 30 35 40 45 50 55 60 65 70
Factor (F3) 1.20 1.12 1.00 0.83 0.69 0.59 0.50 0.44 0.39 0.37

Correction factor for DewPoint changes:

DewPoint ºC 3 5 7 10
Factor (F4) 1.00 1.09 1.19 1.37

How to find the air flow capacity:

Air flow capacity = Nominal duty x Factor (F1) x Factor (F2) x Factor (F3) x Factor (F4)

Example:
An ACT 180 has a nominal duty of 1080 m³/h. What is the maximum allowable flow through the dryer under the
following operating conditions:
Inlet air pressure = 8 barg Factor (F1) = 1.05
Ambient temperature = 45°C Factor (F2) = 0.72
Inlet air temperature = 50°C Factor (F3) = 0.59
Pressure DewPoint = 10°C Factor (F4) = 1.37
Each item of data has a corresponding numerical factor which multiplied by the design air flow is as follows:

Air flow capacity = 1080 x 1.05 x 0.72 x 0.59 x 1.37 = 660 m³/h

660 m³/h This is the maximum flow rate that the dryer can accept under these operating conditions.

How to select a suitable dryer for a given duty:

Design air flow
Minimum std. air flow rate =
Factor (F1) x Factor (F2) x Factor (F3) x Factor (F4)
Example:
With the following operating parameters:

Design air flow = 1000 m3/h

Factor (F1) = 1.05
Inlet air pressure = 8 barg
Factor (F2) = 0.72
Ambient temperature = 45°C
Factor (F3) = 0.59
Inlet air temperature = 50°C
Factor (F4) = 1.37
Pressure DewPoint = 10°C

In order to select the correct dryer model the required flow rate is to be divided by the correction factors relating to
above mentioned parameters:
1000
Minimum std. air flow rate = = 1636 m³/h
1.05 x 0.72 x 0.59 x 1.37
Therefore the model suitable for the conditions above is ACT 300 (1800 m³/h - nominal duty).

10 – EN ACT 180 – 1500

 Installation
4.6 Connection to the compressed air system
Operations to be performed by qualified personnel only.
Never work on system under pressure.
The user is responsible to ensure that the dryer will never be operated with pressure exceeding the
maximum pressure rating on the unit data tag.
Over-pressurizing the dryer could be dangerous for both the operator and the unit.
The air temperature and the flow entering the dryer must comply within the limits stated on the data
nameplate. The system connecting piping must be kept free from dust, rust, chips and other impurities, and
must be consistent with the flow-rate of the dryer. In case of treatment of air at particularly high temperature,
the installation of a final refrigerator could result necessary. In order to perform maintenance operations, it is
recommended to install a dryer by-pass system.
In case of heavily polluted inlet air (ISO 8573.1 class 3.-.3 or worse quality), we recommend the
additional installation of a pre-filter (5 micron minimum) to prevent a clogging of the heat exchanger.

In realising the dryer, particular measures have been taken in order to limit the vibration which could occur
during the operation. Therefore we recommend to use connecting pipes able to insulate the dryer from
possible vibrations originating from the line (flexible hoses, vibration damping fittings, etc.).
4.6.1 Inlet / outlet flanged air connections (only ACT 180 – 360)
Inlet / oulet flanged air connections and Victaulic ® joints are located inside the box under the dryer
(see Fig.1).
Assembly flange (B) and Victaulic ® joint (A) as shown in Fig.2
Pay particular attention in not damaging the gasket of Victaulic ® joint (A).
Fully tighten the two bolts of Victaulic ® joint (see Fig.3)

A
LGT0056

LGT0057

Fig.1 Fig.2

Fig.3

ACT 180 – 1500 11 – EN

 Installation
4.7 Connection to the cooling water network (Water-Cooled)
Operations to be performed by qualified personnel only.
Never work on system under pressure.
The user is responsible to ensure that the dryer will never be operated with pressure exceeding the
maximum pressure rating on the unit data tag.
Over-pressurizing the dryer could be dangerous for both the operator and the unit.
The temperature and the amount of cooling water must comply with the limits indicated on the technical
characteristics chart. The cross section of the connection pipes, preferably flexible, must be free from rust,
chips and other impurities. We recommend to use connecting pipes able to insulate the dryer from possible
vibrations originating from the line (flexible hoses, vibration damping fittings, etc.).

We recommend the installation of a 500 micron filter to prevent a clogging of the heat exchanger.

Minimum cooling water requirements:

Temperature 15 … 30°C (1) HCO3 / SO4 >1.0 mg/l or ppm
Pressure 3…10 barg (2) NH3 <2 mg/l or ppm
Head pressure > 3 bar (2) (3) Cl- 50 mg/l or ppm
Total hardness 6.0…15 Cl2 0.5 mg/l or ppm
PH 7.5…9.0 H2S <0.05 mg/l or ppm
Conductivity 10…500 μS/cm CO2 <5 mg/l or ppm
Residual solid particles <30 mg/l or ppm NO3 <100 mg/l or ppm
Saturation Index SI -0.2 < 0 < 0.2 Fe <0.2 mg/l or ppm
HCO3 70…300 mg/l or ppm Al <0.2 mg/l or ppm
SO42- <70 mg/l or ppm Mn <0.1 mg/l or ppm
Note : (1) – Other temperature on request - Check the data shown on the identification plate.
(2) – Other pressure on request - Check the data shown on the identification plate.
(3) – Pressure difference at dryer water connection points at maximum water flow - Other head pressure on
request
CAUTION :
PIPING THE DRYER, INLET/OUTLET CONNECTIONS MUST BE SUPPORTED AS SHOWN IN THE
DIAGRAM.
FAILING WILL RESULT IN DAMAGE.

12 – EN ACT 180 – 1500

 Installation
4.8 Electrical connections
Qualified personnel should carry out connecting unit to the main power.
Be sure to check the local codes in your area.

Before connecting the unit to the electrical supply, verify the data nameplate for the proper electrical
information. Voltage tolerance is +/- 10%. The installer is responsible for supplying and installing the power
cable. Be sure to provide the proper fuses or breakers based on the data information located on the
nameplate.

ACT 180 – 360 ACT 400 – 1500

A residual-current device (RCD) with In =0.03A is

suggested. The cross section of the power supply
cables must comply with the consumption of the
dryer, while keeping into account also the ambient
temperature, the conditions of the mains
installation, the length of the cables, and the
requirements enforced by the local Power Provider.

CAUTION:
ATTENTION SHOULD BE PAID ON THE ROTATING DIRECTION OF THE COMPRESSOR !
The rotating direction of the compressor in this machine is cheched out by a Reverse Phase Protector
(RPP).

When this protection trips, the DMC24 is engaged (the alarm led flashes and the DMC24 display
shows and ). If the compressor does not run, the rotating direction must be changed by
swapping two phases. These changes have to be done only by a qualified electrician.
DO NOT BY PASS RPP PROTECTION: BY OPERATING THE MACHINE IN WRONG ROTATING
DIRECTION, THE COMPRESSOR WILL FAIL IMMEDIATELY AND THE WARRANTY WILL BE VOIDED.

Important: ensure that the dryer is earthed.

Do not use any socket adapters at the mains plug.
If the mains plug needs to be replaced, this must only be done by a qualified electrician.

ACT 180 – 1500 13 – EN

 Start-up
4.9 Condensate drain
The condensate is discharge at the system pressure.
Drain line should be secured.

Never point the condensate drain line towards anybody.

The dryer comes already fitted with an electronic condensate drainer.

Connect and properly fasten the condensate drain to a collecting plant or container.
The drain cannot be connected to pressurized systems.
Don’t 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 recommend to install a water-oil separator where to convey all the condensate drain coming from
compressors, dryers, tanks, filters, etc.

5 Start-up

5.1 Preliminary operation

Verify that the operating parameters match with the nominal values stated on the data nameplate of the dryer
(voltage, frequency, air pressure, air temperature, ambient temperature, etc.).
This dryer has been thoroughly tested, packaged and inspected prior to shipment. Nevertheless, the unit could be
damaged during transportation, check the integrity of the dryer during first start-up and monitor operation during the
first hours of operation.
Qualified personnel must perform the first start-up.
When installing and operating this equipment, comply with all National Electrical Code and any applicable
federal, state and local codes.
Who is operating the unit is responsible for the proper and safe operation of the dryer.
Never operate equipment with panels removed.

14 – EN ACT 180 – 1500

 Start-up
5.2 First start-up
This procedure should be followed on first start-up, after periods of extended shutdown or following
maintenance procedures.Qualified personnel must perform the start-up.

Sequence of operations (refer to paragraph 7.1 Control Panel).

• 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 fixed and
supported.
• Ensure that the condensate drain pipe is properly fastened and connected to a collection system or container.
• Ensure that the by-pass system (if installed) is closed and the dryer is isolated.
• 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.
• Turn on the main switch - pos. 1 on the control panel.
• The electronic instrument DMC24 shows .

• If the alarm led flashes and display DMC24 shows and the electrical power phases
are not correctly connected. Change two of the three phases on the main power supply (see paragraph
4.8)
• Wait at least two hours before starting the dryer (compressor crankcase heater must heat the oil of the
compressor).
• Ensure the cooling water flow and temperature is adequate (Water-Cooled).
• Press key for at least 2 seconds to start the dryer: if the compressor has been shut down for enough time,
it will start up immediately; otherwise the display will show the countdown of the seconds before the
compressor starts up again, and the led flashes (max delay 5 minutes).
• Ensure the consumption matches with the values of the data plate.
• Check the rotation direction of the fan – wait for its first interventions (Air-Cooled).
• Allow the dryer temperature to stabilise at the pre-set value.
• Slowly open the air inlet valve.
• Slowly open the air outlet valve.
• Slowly close the central by-pass valve of the system (if installed).
• Check the piping for air leakage.
• Ensure the drain is regularly cycling - wait for its first interventions.

CAUTION:
ATTENTION SHOULD BE PAID ON THE ROTATING DIRECTION OF THE COMPRESSOR !
The rotating direction of the compressor in this machine is cheched out by a Reverse Phase Protector
(RPP).

When this protection trips, the DMC24 is engaged (the alarm led flashes and the DMC24 display
shows and ). If the compressor does not run, the rotating direction must be changed by
swapping two phases. These changes have to be done only by a qualified electrician.
DO NOT BY PASS RPP PROTECTION: BY OPERATING THE MACHINE IN WRONG ROTATING
DIRECTION, THE COMPRESSOR WILL FAIL IMMEDIATELY AND THE WARRANTY WILL BE VOIDED.

ACT 180 – 1500 15 – EN

 Start-up
5.3 Start-up and shut down
For short periods of inactivity, (max 2-3 days) we recommend that power is maintained to the dryer
and the control panel. Otherwise, before re-starting the dryer, it is necessary to wait at least 2 hours
for the compressor crankcase heater to heat the oil of the compressor.

Start-up (refer to paragraph 7.1 Control Panel)

• Check the condenser for cleanliness (Air-Cooled).

• Ensure the cooling water flow and temperature is adequate (Water-Cooled).
• The electronic instrument DMC24 shows .
• Press key for at least 2 seconds to start the dryer: if the compressor has been shut down for enough time,
it will start up immediately; otherwise the display will show the countdown of the seconds before the
compressor starts up again, and the led flashes (max delay 5 minutes).
• Wait few minutes; verify that the DewPoint temperature displayed on electronic instrument is correct and that
the condensate is regularly drained.
• Switch on the air compressor.

Shut down (refer to paragraph 7.1 Control Panel)

• Check that the DewPoint temperature indicated on the electronic instrument is within range.
• Shut down the air compressor.
• After few minutes, shut down the dryer keeping the button on DMC24 pressed for at least 2 seconds. The
display shows ..

Dryer remote control ON-OFF

• See instructions on paragraph 7.15.7

Use dry contacts only (potential free) suitable for low voltage. Assure an adequate isolation of
potentially dangerous powered parts.
CAUTION :
AUTO-RESTART / REMOTE ON-OFF.
THE DRYER MAY POWER UP WITHOUT BEING ACTED UPON.
THE USER WILL BE RESPONSIBLE FOR THE INSTALLATION OF PROPER PROTECTIONS FOR
POSSIBLE SUDDEN POWER RESTORATION TO THE DRYER.
NOTE : A DewPoint within 0°C and +10°C displayed on electronic instrument is correct according to the
possible working conditions (flow-rate, temperature of the incoming air, ambient temperature, etc.).
During the operation, the refrigerant compressor will run continuously. The dryer must remain on during the
full usage period of the compressed air, even if the air compressor works intermittently.
The number of starts must be no more than 6 per hour.
The dryer must stop running for at least 5 minutes before being started up again.
Frequent starts may cause irreparable damage.
The user is responsible for compliance with these rules.
The DMC24 is fitted with internal protections to prevent the dryer from starting up too frequently.

16 – EN ACT 180 – 1500

 6
MODEL ACT 180 210 250 300 360 400 500 600 720 900 1100 1200 1500 6.1
[m3/h] 1080 1260 1500 1800 2208 2400 3000 3600 4416 5400 6624 7200 8832
Air flow rate at nominal condition (1) [l/min] 18000 21000 25000 30000 36800 40000 50000 60000 73600 90000 110400 120000 147200
[scfm] 636 742 883 1060 1300 1413 1766 2119 2600 3178 3900 4238 5200

ACT 180 – 1500

Pressure DewPoint at nominal condition (1) [°C] 3
Nominal ambient temperature [°C] 25
Technical data

Min...Max ambient temperature [°C] 1…50

Nominal inlet air temperature (max.) [°C] 35 (70)
Nominal inlet air pressure [barg] 7
Max. inlet air pressure [barg] 14
Air pressure drop - ∆p [bar] 0.17 0.21 0.13 0.19 0.26 0.21 0.14 0.20 0.26 0.20 0.26 0.20 0.26
Inlet - Outlet connections [BSP-F] DN80 PN16 DN100 PN16 DN150 PN16 DN200 PN16

Refrigerant type R407C

Technical data ACT 180 – 1500

Refrigerant quantity (2) [kg] 2.80 2.80 3.50 3.70 4.50 6.50 9.30 9.30 9.80 15.00 17.80 19.50 25.00
Cooling air fan flow [m3/h] 5400 5400 7200 7200 7400 10800 14400 14400 14800 21600 22200 28800 29600
Heat Rejection [kW] 6.98 8.90 10.10 12.95 17.15 22.70 23.40 24.10 31.90 42.10 54.70 55.80 86.40
Standard Power Supply (2) [Ph/V/Hz] 3/400/50
3/400/50

[kW] 2.10 2.55 2.85 3.10 3.50 4.30 4.80 5.60 6.40 8.40 10.80 11.30 16.80
Nominal electric consumption

Air-Cooled
[A] 3.7 4.4 5.0 5.5 6.2 7.9 8.8 10.3 12.8 16.2 20.5 21.5 30.6
Full Load Amperage FLA [A] 6.8 7.1 8.7 10.2 11.2 14.5 15.9 16.3 22.4 30.1 37.1 38.8 47.8
Max. noise level at 1 m [dbA] < 75 < 80 <85
Weight [kg] 240 242 275 276 311 463 538 540 612 830 940 1055 1200
Technical data

Refrigerant type R407C

Refrigerant quantity (2) [kg] 2.60 2.60 3.10 3.10 3.60 5.00 7.50 7.50 9.00 11.50 15.00 15.00 22.00
Max. cooling water inlet temp (3) [°C] 30
Min...Max. cooling water inlet pressure [barg] 3 … 10
Cooling water flow at 30°C [m3/h] 0.60 0.67 0.79 1.11 1.19 1.40 1.42 1.81 2.18 2.80 3.80 3.90 5.90
Heat Rejection [kW] 6.98 8.90 10.10 12.95 17.15 22.70 23.40 24.10 31.90 42.10 54.70 55.80 86.40
Control of cooling water flow Automatic by valve
Cooling water connection [BSP-F] G 3/4" G 1" G 1.1/2" G 2"

Water-Cooled
Standard Power Supply (2) [Ph/V/Hz] 3/400/50
[kW] 1.88 2.32 2.40 2.65 3.00 3.80 3.90 4.65 5.50 7.30 9.35 9.45 14.90
Nominal electric consumption
[A] 3.1 3.8 4.0 4.5 5.2 6.6 6.8 8.3 10.8 11.1 17.2 17.5 26.5
Full Load Amperage FLA [A] 5.7 6.0 7.0 8.5 9.5 12.5 12.5 12.9 19.0 23.0 32.0 32.0 41.0
Max. noise level at 1 m [dbA] < 70 < 75 < 80
Weight [kg] 225 227 256 257 288 431 498 500 562 770 940 1055 1200
(1) The nominal condition refers to an ambient temperature of +25°C with inlet air at 7 barg and +35 °C.
(2) Check the data shown on the identification plate.
(3) Other temperature on request.

17 – EN
 6.2

18 – EN
MODEL ACT 180-R 210-R 250-R 300-R 360-R 400-R 500-R 600-R 720-R 900-R 1100-R 1200-R 1500-R
[m3/h] 1080 1260 1500 1800 2208 2400 3000 3600 4416 5400 6624 7200 8832
Air flow rate at nominal condition (1) [l/min] 18000 21000 25000 30000 36800 40000 50000 60000 73600 90000 110400 120000 147200
[scfm] 636 742 883 1060 1300 1413 1766 2119 2600 3178 3900 4238 5200
Pressure DewPoint at nominal condition (1) [°C] 3
Nominal ambient temperature [°C] 25
Min...Max ambient temperature [°C] 1…50
Nominal inlet air temperature (max.) [°C] 35 (70)
Nominal inlet air pressure [barg] 7
Max. inlet air pressure [barg] 14
Air pressure drop - ∆p [bar] 0.17 0.21 0.13 0.19 0.26 0.21 0.14 0.20 0.26 0.20 0.26 0.20 0.26
Inlet - Outlet connections [BSP-F] DN80 PN16 DN100 PN16 DN150 PN16 DN200 PN16

Refrigerant type R407C

Technical data ACT 180 – 1500-R

Refrigerant quantity (2) [kg] 2.80 2.90 3.20 3.20 3.80 5.50 8.00 8.30 8.50 14.00 14.50 15.00 29.00
Cooling air fan flow [m3/h] 5900 5900 7900 7900 8200 12000 16000 16000 16500 24000 24500 32000 33000
Heat Rejection [kW] 8.23 10.50 11.90 15.30 19.37 25.80 26.40 28.45 38.50 51.20 66.00 66.50 103.50
Standard Power Supply (2) [Ph/V/Hz] 3/460/60
[kW] 2.45 3.00 3.30 3.80 4.25 5.20 5.95 6.90 8.00 11.25 13.60 14.50 21.50
3/460/60

Nominal electric consumption

Air-Cooled
[A] 3.8 4.6 5.1 5.9 6.4 8.3 9.3 10.9 13.2 16.6 20.9 22.1 31.4
Full Load Amperage FLA [A] 6.1 7.1 9.0 10.5 11.5 14.7 16.5 18.4 23.0 31.0 38.0 40.0 49.0
Max. noise level at 1 m [dbA] < 75 < 80 <85
Weight [kg] 240 242 275 276 311 463 538 540 612 830 940 1055 1200
Technical data

Refrigerant type R407C

Refrigerant quantity (2) [kg] 2.30 2.50 2.70 2.80 3.30 4.40 6.00 6.60 7.80 11.00 11.50 12.00 24.50
Max. cooling water inlet temp (3) [°C] 30
Min...Max. cooling water inlet pressure [barg] 3 … 10
Cooling water flow at 30°C [m3/h] 0.81 0.84 1.10 1.46 1.47 1.82 1.91 2.23 2.90 3.69 5.15 5.23 7.90
Heat Rejection [kW] 8.23 10.50 11.90 15.30 19.37 25.80 26.40 28.45 38.50 51.20 66.00 66.50 103.50
Control of cooling water flow Automatic by valve
Cooling water connection [BSP-F] G 3/4" G 1" G 1.1/2" G 2"

Water-Cooled
Standard Power Supply (2) [Ph/V/Hz] 3/460/60
[kW] 2.10 2.70 2.80 3.10 3.50 4.50 4.60 5.50 6.60 9.10 11.40 11.60 18.60
Nominal electric consumption
[A] 3.1 4.0 4.1 4.7 5.2 6.9 7.0 8.5 10.8 13.2 17.2 17.5 26.6
Full Load Amperage FLA [A] 5.7 6.0 7.0 8.5 9.5 12.5 12.5 12.9 19.0 25.0 32.0 32.0 41.0
Max. noise level at 1 m [dbA] < 70 < 75 < 80
Weight [kg] 225 227 256 257 288 431 498 500 562 770 940 1055 1200
(1) The nominal condition refers to an ambient temperature of +25°C with inlet air at 7 barg and +35 °C.
(2) Check the data shown on the identification plate.
(3) Other temperature on request.

ACT 180 – 1500

 6.3
MODEL ACT 180-F 210-F 250-F 300-F 360-F 400-F 500-F 600-F 720-F 900-F 1100-F 1200-F 1500-F
[m3/h] 1080 1260 1500 1800 2208 2400 3000 3600 4416 5400 6624 7200 8832
Air flow rate at nominal condition (1) [l/min] 18000 21000 25000 30000 36800 40000 50000 60000 73600 90000 110400 120000 147200
[scfm] 636 742 883 1060 1300 1413 1766 2119 2600 3178 3900 4238 5200

ACT 180 – 1500

Pressure DewPoint at nominal condition (1) [°C] 3
Nominal ambient temperature [°C] 25
Min...Max ambient temperature [°C] 1…50
Nominal inlet air temperature (max.) [°C] 35 (70)
Nominal inlet air pressure [barg] 7
Max. inlet air pressure [barg] 14
Air pressure drop - ∆p [bar] 0.17 0.21 0.13 0.19 0.26 0.21 0.14 0.20 0.26 0.20 0.26 0.20 0.26
Inlet - Outlet connections [BSP-F] DN80 PN16 DN100 PN16 DN150 PN16 DN200 PN16

Refrigerant type R407C

Technical data ACT 180 – 1500-F

Refrigerant quantity (2) [kg] 2.80 2.90 3.20 3.20 3.80 5.50 8.00 8.30 8.50 14.00 14.50 15.00 29.00
Cooling air fan flow [m3/h] 5900 5900 7900 7900 8200 12000 16000 16000 16500 24000 24500 32000 33000
Heat Rejection [kW] 8.23 10.50 11.90 15.30 19.37 25.80 26.40 28.45 38.50 51.20 66.00 66.50 103.50
Standard Power Supply (2) [Ph/V/Hz] 3/380/60
[kW] 2.45 3.00 3.30 3.80 4.25 5.20 5.95 6.90 8.00 11.25 13.60 14.50 21.50
Nominal electric consumption
3/380/60

Air-Cooled
[A] 4.6 5.6 6.2 7.1 7.7 10.0 11.3 13.2 16.0 20.1 25.3 26.8 38.0
Full Load Amperage FLA [A] 7.4 8.6 10.9 12.7 13.9 17.8 20.0 22.3 27.8 37.5 46.0 48.4 59.3
Max. noise level at 1 m [dbA] < 75 < 80 <85
Weight [kg] 240 242 275 276 311 463 538 540 612 830 940 1055 1200
Technical data

Refrigerant type R407C

Refrigerant quantity (2) [kg] 2.30 2.50 2.70 2.80 3.30 4.40 6.00 6.60 7.80 11.00 11.50 12.00 24.50
Max. cooling water inlet temp (3) [°C] 30
Min...Max. cooling water inlet pressure [barg] 3 … 10
Cooling water flow at 30°C [m3/h] 0.81 0.84 1.10 1.46 1.47 1.82 1.91 2.23 2.90 3.69 5.15 5.23 7.90
Heat Rejection [kW] 8.23 10.50 11.90 15.30 19.37 25.80 26.40 28.45 38.50 51.20 66.00 66.50 103.50
Control of cooling water flow Automatic by valve
Cooling water connection [BSP-F] G 3/4" G 1" G 1.1/2" G 2"

Water-Cooled
Standard Power Supply (2) [Ph/V/Hz] 3/380/60
[kW] 2.10 2.70 2.80 3.10 3.50 4.50 4.60 5.50 6.60 9.10 11.40 11.60 18.60
Nominal electric consumption
[A] 3.8 4.8 5.0 5.7 6.3 8.4 8.5 10.3 13.1 16.0 20.8 21.2 32.2
Full Load Amperage FLA [A] 6.9 7.3 8.5 10.3 11.5 15.1 15.1 15.6 23.0 30.3 38.7 38.7 49.6
Max. noise level at 1 m [dbA] < 70 < 75 < 80
Weight [kg] 225 227 256 257 288 431 498 500 562 770 940 1055 1200
(1) The nominal condition refers to an ambient temperature of +25°C with inlet air at 7 barg and +35 °C.
(2) Check the data shown on the identification plate.
(3) Other temperature on request.

19 – EN
 Technical description
7 Technical description

7.1 Control panel

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

reset
log

ESC
info
set

T2

K 3
T4 T3

T1
PQS0047

1 Main switch
2 Electronic instrument DMC24
3 Air and refrigerant flow diagram

7.2 Operation
Operating principle - The dryer models described in this manual operate all on the same principle. The hot moisture
laden air enters an air to air heat exchanger. The air then goes through the evaporator, also known as the air to
refrigerant heat exchanger. The temperature of the air is reduced to approximately 2°C, causing water vapor to
condense to liquid. The liquid is continuously coalesced and collected in the separator for removal by the condensate
drain. The cool moisture free air then passes back through the air to air heat exchanger to be reheated to within 8
degrees of the incoming air temperature as it exits the dryer.

Refrigerant circuit - Refrigerant gas is cycled through the compressor and exits at high pressure to a
condenser where heat is removed causing the refrigerant to condense to a high-pressure liquid state. The
liquid is forced through a capillary tube where the resulting pressure drop allows the refrigerant to boil off at
a predetermined temperature. Low-pressure liquid refrigerant enters the heat exchanger where heat from
the incoming air is transferred causing the refrigerant to boil; the resulting phase change produces a low
pressure, low temperature gas. The low-pressure gas is returned to the compressor, where it is re-
compressed and begins the cycle again. During those periods when the compressed air load is reduced the
excess refrigerant is by-passed automatically back to the compressor via the hot gas by-pass valve circuit.

20 – EN ACT 180 – 1500

 Technical description
7.3 Flow diagram (Air-Cooled)
2 4 37
T2
P< 12.3 12.4 P> P
mA
12.2
T3 T4

6
36 43
1a
25
8
7 9 M
1
1b

12.1
T1 20
11 10
1c
DGF0134

13 21

7.4 Flow diagram (Water-Cooled)

2 4 37
T2
P> P
P< 12.3 12.4
mA
12.2
T3 T4

6
36 43
1a
25
7 18

1
1b 19

12.1
T1
11 10 20
1c
DGF0135

13 21

1 Alu-Dry module 12.2 T2 Temperature probe – Air IN

1a Air-to-air heat exchanger 12.3 T3 Temperature probe – Compressor suction
1b Air-to-refrigerant heat exchanger 12.4 T4 Temperature probe – Compressor discharge
1c Condensate separator 13 Condensate drain service valve
2 Refrigerant pressure switch LPS 18 Condenser (Water-Cooled)
4 Refrigerant pressure switch HPS 19 Condenser water regulating valve (Water-Cooled)
6 Compressor 20 Refrigerant accumulator
7 Hot gas by-pass valve (ACT 900-1500 A.Cooled & ACT 180-1500 W.Cooled)
8 Condenser (Air-Cooled) 21 Electronic drainer
9 Condenser fan (Air-Cooled) 25 Compressor crankcase heater
10 Filter dryer 36 Liquid separator
11 Capillary tube 37 Refrigerant pressure transducer BHP
12.1 T1 Temperature probe – DewPoint 43 Oil seaparator (ACT 500-1500)
Compressed air flow direction Refrigerant gas flow direction

ACT 180 – 1500 21 – EN

 Technical description
7.5 Refrigerating compressor
The refrigerating compressor is the pump in the system, gas coming from the evaporator (low pressure side) is
compressed up to the condensation pressure (high pressure side). The compressors utilized are manufactured by
leading manufacturers and are designed for applications where high compression ratios and wide temperature
changes are present.
The hermetically sealed construction is perfectly gas tight, ensuring high-energy efficiency and long, useful
life. Dumping springs support the pumping unit in order to reduce the acoustic emission and the vibration
diffusion. The aspirated refrigerant gas, flowing through the coils before reaching the compression cylinders
cools the electric motor. The thermal protection protects the compressor from over heating and over
currents. The protection is automatically restored as soon as the nominal temperature conditions are
reached.

7.6 Condenser (Air-Cooled)

The condenser is the component in which the gas coming from the compressor is cooled down and condensed
becoming a liquid. Mechanically, a serpentine copper tubing circuit (with the gas flowing inside) is encapsulated in an
aluminum fin package.
The cooling operation occurs via a high efficiency fan, creating airflow within the dryer, moving air through
the fin package. It’s mandatory that the ambient air temperature does not exceed the nominal values. It is
also important to keep the condenser unit free from dust and other impurities.

7.7 Condenser (Water-Cooled)

The condenser is the component in which the gas coming from the compressor is cooled down and condensed
becoming a liquid. Basically it is a water/refrigerating gas exchanger where the cooling water lowers the temperature of
the refrigerating gas.
The temperature of the inlet water must not exceed the nominal values. It must also guarantee an adequate
flow and that the water entering the exchanger is free from dust and other impurities.

7.8 Condenser water regulating valve (Water-Cooled)

The condenser water regulating valve is used to keep the condensing pressure/temperature constant when
the Water-Cooled is being used. Thanks to the capillary tube, the valve detects the pressure in the
condenser and consequently adjusts the water flow. When the dryer stops the valve automatically closes the
cooling water flow.
The condenser water regulating valve is an operating control device.
The closure of the water circuit from the pressure condenser water regulating valve cannot be used as a
safety closure during service operations on the system.
ADJUSTMENT
The condenser water regulating valve is adjusted during the testing phase to a pre-set value that covers 90%
of the applications. However, sometimes the extreme operating conditions of the dryer may require a more
accurate calibration.
During start-up, a qualified technician should check the condensing pressure/temperature and if necessary
adjust the valve by using the screws on the valve itself.
To increase the condensing temperature, turn the adjusting screws counter-clockwise; to lower it turn the
screws clock-wise.
Water valve setting : R407C pressure 16 barg (± 0.5 bar)

7.9 Filter dryer

Traces of humidity and slag can accumulate inside the refrigerant circuit. Long periods of use can also
produce sludge. This can limit the lubrication efficiency of the compressor and clog the expansion valve or
capillary tube. The function of the filter drier, located before the capillary tubing, is to eliminate any impurities
from circulating through the system.

22 – EN ACT 180 – 1500

 Technical description
7.10 Capillary tube
It consists of a piece of reduced cross section copper tubing located between the condenser and the evaporator, acting
as a metering device to reduce the pressure of the refrigerant. Reduction of pressure is a design function to achieve
optimum temperature reached within the evaporator: the smaller the capillary tube outlet pressure, the lower the
evaporation temperature.
The length and interior diameter of the capillary tubing is accurately sized to establish the performance of
the dryer; no maintenance or adjustment is necessary.

7.11 Alu-Dry module

The heat exchanger module houses the air-to-air, the air-to-refrigerant heat exchangers and the demister
type condensate separator. The counter flow of compressed air in the air-to-air heat exchanger ensures
maximum heat transfer. The generous cross section of flow channel within the heat exchanger module leads
to low velocities and reduced power requirements. The generous dimensions of the air-to-refrigerant heat
exchanger plus the counter flow gas flow allows full and complete evaporation of the refrigerant (preventing
liquid return 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.

7.12 Hot gas by-pass valve

This valve injects part of the hot gas (taken from the discharge side of the compressor) in the pipe between
the evaporator and the suction side of the compressor, keeping the evaporation temperature/pressure
constant at approx. +2 °C. This injection prevents the formation of ice inside the dryer evaporator at every
load condition.
ADJUSTMENT
The hot gas by-pass valve is adjusted during the manufacturing testing phase. As a rule no adjustment is
required; anyway if it is necessary the operation must be carried out by an experienced refrigerating
engineer.
WARNING
the use of ¼” Schrader service valves must be justified by a real malfunction of the refrigerating 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 the drawing) until
the following value is reached:
Hot gas setting : R407C pressure 4.5 barg (+0.1 / -0 bar)

ACT 180 – 360 ACT 400 – 900 ACT 1100 – 1500

2x 8 mm
A 5/16 in.

-
A

4 mm
5/32 in.
-
VLY0001

+
VLY0003

ACT 180 – 1500 23 – EN

 Technical description
7.13 Refrigerant pressure switches LPS – HPS
As operation safety and protection of the dryer a series of pressure switches are installed in the gas circuit.

LPS : Low-pressure protection device on the suction side of the compressor, trips if the pressure drops below the
pre-set value. The values are automatically reset when the nominal conditions are restored.
Calibrated pressure : R 407 C Stop 1.7 barg - Restart 2.7 barg
HPS : This high-pressure controller device, located on the discharge side on the compressor, is activated when the
pressure exceeds the pre-set value. It features a manual-resetting button mounted on the controller itself.
Calibrated pressure : R 407 C Stop 30 barg - Manual reset (P<23 bar)

7.14 Compressor crankcase heater

At low temperatures oil can more easily be mixed with the refrigerant gas. So, when the compressor starts, oil can be
drawn into the refrigeration circuit and liquid hammering could occur.
To prevent this, an electrical resistance heater is installed in the suction side of the compressor. When the system is
powered and the compressor is not running, this heater keeps the oil at the correct temperature.
This heater is controlled by a thermo switch which prevents overheating the oil.
NOTE : The heater must be powered at least a couple of hours before the start up of the refrigeration
compressor.

24 – EN ACT 180 – 1500

 Technical description
7.15 Electronic instrument DMC24

reset
log

ESC
info
PQS0046

set

DISPLAY

LED BUTTON
Compressor ON – green ON

Drain ON – green OFF

Fan 1 ON – green Increase

Fan 2 ON – green Decrease

Service warning – orange log Log

Alarm – red info Info menu

Remote control enabled ESC Drain test / ESC

info
Temperature in °C set
Setup menu on
reset
Temperature in °F log Reset alarms and/or service

Pressure in barg

Pressure in psig

The DMC24 controls all the operations, alarms and dryer operation set-up. The display and the leds show all the
operating conditions.
Led shows that the compressor is ON.
The operation of the fans is indicated by the leds and .
During normal operation the display shows the DewPoint temperature.

ACT 180 – 1500 25 – EN

 Technical description
7.15.1 How to switch on the dryer
When the unit is powered the display shows .
The condensate drain test is always active through button ESC .

Press for at least 2 seconds to start the dryer: if the compressor has been shut down for enough time, it will start
up immediately; otherwise the display will show the countdown of the seconds before the compressor starts up again,
and the led flashes (max delay 5 minutes).

7.15.2 How to switch off the dryer

From any menu press for at least 2 seconds. The display shows .

7.15.3 How to display the operating parameters – INFO Menu

The info menu shows the dynamic operating parameters of the dryer.
With the dryer ON and not in other menus, press info for at least 1 second to enter the info menu.
Access to the info menu is confirmed by message on the display (first parameter of the menu). Use the arrows
info
and to move to the following/previous. Press to show the value of the selected parameter. Press info
again to return to the list of displayable parameters.
Press ESC to exit info menu (if no button is pressed after 2 minutes the menu is exited automatically).

Info Description

T1 - Temperature probe T1 – DewPoint

T2 – Temperature probe T2 – Air IN

T3 – Temperature probe T3 – compressor suction

T4 – Temperature probe T4 – compressor discharge

HP – condensing pressure HP

HrS – total hours of operation

SrV – hours until next service

Note : The temperatures are displayed in °C or °F (led or is lighted).

Pressure is displayed in barg or psig (led or is lighted).
The total hours of operation and the hours until the next service are shown in the field 0…999 hours and in
thousands of hours from 01.0 hours on (example : if the display shows number 35 it means 35 hours; if the
display shows number 3.5 it means 3500 hours).

26 – EN ACT 180 – 1500

 Technical description
7.15.4 How a service warning is displayed
A service warning is an unusual event that must recall the attention of operators/maintenance technicians. Generally it
does not stop the dryer (except for a high DewPoint parameter that can be set to stop the dryer).
When the service warning is active the led flashes. If the service warning is memorized (it tripped but then it
switched off by itself) led is lighted.
In both cases the display shows the DewPoint temperature and the service warnings that are active or not active but
that have not yet been reset.
Service warnings are not automatically reset (except for that can be set in auto-reset).
reset
log
To RESET the service warning press the buttons simultaneously for 3 seconds. Only the memorized service
warning will be reset, whereas the service warning are still engaged will remain displayed and the led flashes.
NOTE: if the led is powered it means that the dryer is in remote mode and it is not possible
to reset the service warning from the panel. Switch the dryer in “local mode” to reset the service
warning.
NOTE: the operator/maintenance technician must inspect the dryer and verify/solve the problem that
generated the service warning.

Service Warning Description

PF1 - Probe 1 Failure : failure temperature probe 1

PF2 - Probe 2 Failure : failure temperature probe 2

PF3 - Probe 3 Failure : failure temperature probe 3

HdP - High DewPoint: DewPoint too high, higher than the HdA value set.

LdP - Low DewPoint : DewPoint too low

Set T1< -1°C (30°F) delay 5 minutes / Reset T1> 0°C (32°F)

drn - Drainer : condensate drainer failure (opening of contact DRN – if electronic level drainer
is installed – see electric diagram)

SrV - Service : maintenance service time expired SrV

dt - Discharge Temperature : compressor discharge temperature (probe T4) beyond normal

values, but within safety limits
Set T4> 100°C (212°F) delay 3 minutes / Reset T4< 95°C (203°F)

HCP - High Condensing Pressure : condensing pressure (transducer BHP) beyond normal
values, but within safety limits
Set HP> 28barg (406psig) delay 3 minutes / Reset HP< 25barg (363psig)

NOTE: with dryer ON, but without compressed air pressure, the drainer failure notice may appear.

ACT 180 – 1500 27 – EN

 Technical description
7.15.5 How an alarm is displayed
The alarm is an unusual event that always causes the dryer to switch OFF for the safety of the machine and the
operators.
When the alarm is active the led flashes. If the alarm is memorized (it tripped but then it switched off by itself) led
is lighted (dryer stay OFF in any case).
When the led flashes the message and the active alarm/s appear in sequence on the display.
When the led is lighted, the message and the alarm/s that tripped and require to be reset appear in
sequence on the display.
reset
log
The alarms are not automatically reset. To RESET the alarm the led must be lighted and the buttons
must be pressed simultaneously for at least 3 seconds.
The dryer does not start up automatically after the alarms have been reset.
NOTE: if the led is powered it means that the dryer is in remote mode and it is not possible
to reset the alarm from the panel. Switch the dryer in “local mode” to reset the alarm.
NOTE: the operator/maintenance technician must inspect the dryer and verify/solve the problem that
generated the alarm warning.

Alarm Description

HP - High Pressure : the refrigerant high pressure safety pressure switch HPS tripped (note : the
pressure switch has a reset button)

LP - Low Pressure : the refrigerant low pressure safety pressure switch LPS tripped

COn - Compressor : the compressor’s protections and/or the reverse phase protector RPP tripped

FAn - Fan : the fan protections tripped

Hdt - High Discharge Temperature : compressor discharge temperature beyond the safety limit
Set T4> 110°C (230°F) delay 1 minute / Reset T4< 100°C (212°F)

ICE - ICE / freezing : temperature inside the exchanger (probe T1) is too low and causes the
condensate to freeze.
Set T1< -3°C (27°F) delay 1 minute / Reset T1> 0°C (32°F)

LCP - Low Condensing Pressure : condensing pressure too low

PF4 - Probe 4 Failure : failure probe 4

PFP - Probe Pressure Failure : failure condensing pressure trasducer BHP

28 – EN ACT 180 – 1500

 Technical description
7.15.6 How to show the alarm memory – LOG Menu
The log menu is the list of the last 10 alarms (only alarms, not service warning). They appear in chronological order
(LIFO logic).
With dryer ON or OFF and not in other menus, press log for at least 1 second to enter the log menu.
Access to the log menu is confirmed by message (L01) on the display (first parameter of menu). Use the arrows
and to move to following/previous (L01 … L10). Press log to show the selected log value. Alternatively the
parameter that generated the alarm and the hours of operation of the machine when the alarm tripped are shown.
Press log again to return to the log list.
Press ESC to exit log menu (if no button is pressed after 2 minutes the menu is exited automatically).
NOTE: an empty position in the log list is displayed by the message .

7.15.7 How to control dryer with remote control

The DMC24 can be easily controlled using 2 digital inputs connected to terminals 1, 2 and 3 (see electric diagram).
Close the contact between the terminals 2 and 3 to enable the remote control, the led turns on and it is no
longer possible to switch the dryer ON or OFF from local panel (the condensate drain test is possible and access to
info and log menus).
Having contact between terminals 2 and 3 closed, close the second contact between the terminals 1 and 2 to switch
ON the dryer. Open the contact between the terminals 1 and 2 to switch OFF the dryer.
NOTE: when the dryer is in "remote mode" is not possible to reset any alarm or service warning that
has tripped. In order to reset an alarm or service warning the dryer must be switched in "local
mode", then follow the reset procedure described in the chapters 7.15.5 and 7.15.4.

Use dry contacts only (potential free) suitable for low voltage. Assure an adequate isolation of
potentially dangerous powered parts.
CAUTION:
AUTO-RESTART / REMOTE ON-OFF
THE DRYER MAY POWER UP WITHOUT BEING ACTED UPON.
THE USER WILL BE RESPONSIBLE FOR THE INSTALLATION OF PROPER PROTECTIONS FOR
POSSIBLE SUDDEN POWER RESTORATION TO THE DRYER.

7.15.8 Operation of the failure / alarm dry contact (potential free)

The DMC24 is equipped with a dry contact (potential free) to display failure and/or alarm conditions.

Dryer powered and no service warning or alarm (active and not yet reset) displayed.
4 5 6

Dryer not powered or service warning or alarm (active and not yet reset) displayed.
4 5 6

7.15.9 Connection to serial line

The DMC24 can be connected to a supervision serial line, remote control or download of log file (memory) of alarms.
Contact your distributor or service centre for more information.

ACT 180 – 1500 29 – EN

 Technical description
7.15.10 How to change operating parameters – SETUP Menu
The setup menu can be used to change the dryer’s operating parameters.
Only qualified personnel must be allowed to access to the setup menu. The manufacturer is not
responsible for malfunctioning or failure due to modification to the operating parameters.
info
With dryer ON or OFF and not in other menus, simultaneously press buttons setfor at least 5 seconds to enter
the setup menu.
Access to the info menu is confirmed by message on the display (first parameter of menu). Use arrows and
to move to following/previous one.
Keep info pressed to display the value of the selected parameter and use arrows and to change the value.
info
Release the button to confirm the value and skip to following parameter.
Press ESC to exit setup menu (if no button is pressed after 2 minutes the menu is exited automatically).

Standard
ID Description Limits Resolution
setup
Ton – drain time ON : time ON condensate drain valve
00 … 20 sec 1 sec 00
00 = Electronic drainer installed
ToF - drain time OFF : pause time for condensate drain
1 … 20 min 1 min 1
valve
HdA - High DewPoint Alarm : Alarm threshold for a high 0.0…25.0 °C 0.5 °C 20
DewPoint (the alarm disappears when the temperature drop or or or
1°C / 2°F below alarm point) 32 … 77 °F 1 °F 68
Hdd - High DewPoint Delay : high DewPoint alarm enable 01 … 20
1 min 15
delay minutes

HdS - High DewPoint alarm STOP : select if high DewPoint

YES … nO - nO
alarm stops dryer (YES) or does not stop dryer (nO)

SrV - Service Setting: setting of service warning timer. 0.0 … 9.0 0.5
8.0
00 = service warning timer disabled. (x 1000) hours (x1000) hours

SCL - Scale: display scale of temperatures and pressure.

(Note : setting °C = temperature in °C and pressure in bar; °C … °F - °C
setting °F = temperature in °F and pressure in psi)

AS - Auto Restart : automatic re-start at power supply.

YES = at power supply dryer starts up again automatically (if
YES … nO - nO
it was ON)
nO = at power supply dryer is always OFF

Ard - Auto Reset service drain : automatic reset of service

drain
YES … nO - YES
YES = automatic reset at normal conditions
nO = manual reset required
IPA - IP Address : selection of IP address to use in serial
1 … 255 1 1
connection line

AS = YES - CAUTION -
THE DRYER MAY POWER UP WITHOUT BEING ACTED UPON.
THE USER WILL BE RESPONSIBLE FOR THE INSTALLATION OF PROPER PROTECTIONS FOR
POSSIBLE SUDDEN POWER RESTORATION TO THE DRYER.

30 – EN ACT 180 – 1500

 Technical description
7.16 Electronic drainer
This drain consists of a condensate accumulator where a capacitive sensor continuously checking liquid level is
placed: as soon as the accumulator is filled, the sensor passes a signal to the electronic control and a diaphragm
solenoid valve will open to discharge the condensate. For a complete condensate discharge the valve opening time will
be adjusted exactly for each single drain operation. No condensate strainers are installed. No adjusting is required. A
service valve is installed before the electronic drain in order to make check and maintenance easily. At dryer start-up
verify that this valve is open.

Control panel
Power / Service Led ON - ready to work / supplied
(green) Blinking – maintenance required
Alarm Led (red) Blinking – alarm condition

Power+Alarm Led ON - circuit board defect

TEST Button Discharge test (keep pushed for 2 seconds)

Troubleshooting

Only qualified personnel should perform troubleshooting and or maintenance operations.

Prior to performing any maintenance or service, be sure that :
• no part of the machine is powered and that it cannot be connected to the mains
supply.
• no part of the machine is under pressure and that it cannot be connected to the
compressed air system.
• maintenance personnel have read and understand the safety and operation
instructions in this manual.

PLEASE REFER TO INSTRUCTION MANUAL OF ELECTRONIC DRAINER

ACT 180 – 1500 31 – EN

 Maintenance, troubleshooting, spare parts and dismantling
8 Maintenance, troubleshooting, spare parts and dismantling

8.1 Checks and maintenance

Only qualified personnel should perform troubleshooting and or maintenance operations.
Prior to performing any maintenance or service, be sure that :
• no part of the machine is powered and that it cannot be connected to the mains
supply.
• no part of the machine is under pressure and that it cannot be connected to the
compressed air system.
• maintenance personnel have read and understand the safety and operation
instructions in this manual.
Before attempting any maintenance operation on the dryer, shut it down and wait at
least 30 minutes. components can reach high temperature during operation. Avoid
contact until system or component has dissipated heat.

Daily
• Verify that the DewPoint displayed on the electronic instrument is correct.
• Check the proper operation of the condensate drain systems.
• Verify the condenser for cleanliness (Air-Cooled).

Every 200 hours or monthly

• With an air jet (max. 2 bar / 30 psig) blowing from inside towards outside clean
the condenser; repeat this operation blowing in the opposite way; be careful
not to damage the aluminum fins of the cooling package (Air-Cooled)

• Close the manual condensate drain valve, unscrew the strainer (if installed) and clean it with
compressed air and brush. Reinstall the strainer properly tight, and then open the manual valve.
• At the end, check the operation of the machine

Every 1000 hours or yearly

• Verify for tightness all the screws of the electric system and that all the “Disconnects-Tabs” type
connections are in their proper position inspect unit for broken, cracked or bare wires.
• Inspect refrigerating circuit for signs of oil and refrigerant leakage.
• Measure and record amperage. Verify that readings are within acceptable parameters as listed in
specification table.
• Inspect flexible hoses, and replace if necessary.
• At the end, check the operation of the machine.

Every 8000 hours

• Replace Electronic drainer service unit

32 – EN ACT 180 – 1500

 Maintenance, troubleshooting, spare parts and dismantling
8.2 Troubleshooting
Only qualified personnel should perform troubleshooting and or maintenance operations.
Prior to performing any maintenance or service, be sure that :
• no part of the machine is powered and that it cannot be connected to the mains
supply.
• no part of the machine is under pressure and that it cannot be connected to the
compressed air system.
• maintenance personnel have read and understand the safety and operation
instructions in this manual.
Before attempting any maintenance operation on the dryer, shut it down and wait at
least 30 minutes. Some components can reach high temperature during operation.
Avoid contact until system or component has dissipated heat.

SYMPTOM POSSIBLE CAUSE - SUGGESTED ACTION

◆ The dryer doesn't  Verify that the system is powered.
start.  Verify the electric wiring.
 Blow of fuse (see FU1/FU2/FU4 on the electric diagram) of the auxiliary circuit -
replace it and check the proper operation of the dryer.
 DMC24 - The led is lighted - see specific point.
◆ The compressor  Activation of the compressor internal thermal protection - wait for 30 minutes, then
doesn’t work. retry.
 Verify the electric wiring.
 DMC24 - Internal delay device – the display shows the seconds before start-up.
 DMC24 - The led is lighted - see specific point.
 If the compressor still doesn’t work, replace it.
◆ Condenser’s fan  Verify the electric wiring.
doesn’t work (Air-  Fan power contactor (see KV1/KV2 on the electric diagram) is faulty - replace it.
Cooled).
 DMC24 - The led is lighted - see specific point.
 There is a leak in the refrigerant circuit - contact a refrigeration engineer.
 If the fan still doesn't work, replace it.
◆ DewPoint too  The dryer doesn't start - see specific point.
high.  The DewPoint probe doesn’t correctly detect the temperature - ensure the sensor
is pushed into the bottom of probe well.
 The Compressor doesn’t work - see specific point.
 The ambient temperature is too high or the room aeration is insufficient - provide
proper ventilation (Air-Cooled).
 The inlet air is too hot - restore nominal conditions.
 The inlet air pressure is too low - restore nominal conditions.
 The inlet air flow rate is higher than the rate of the dryer - reduce the flow rate -
restore nominal conditions.
 The condenser is dirty - clean it (Air-Cooled)
 The condenser fan doesn’t work - see specific point (Air-Cooled).
 The cooling water is too hot - restore nominal conditions (Water-Cooled).
 The cooling water flow is insufficient - restore nominal conditions (Water-Cooled).
 The dryer doesn’t drain the condensate - see specific point.
 The hot gas by-pass valve is out of setting - contact a refrigeration engineer to
restore nominal setting.
 There is a leak in the refrigerant circuit - contact a refrigeration engineer.

ACT 180 – 1500 33 – EN

 Maintenance, troubleshooting, spare parts and dismantling

SYMPTOM POSSIBLE CAUSE - SUGGESTED ACTION

◆ Dew Point too  The fan is always on – verify the correct operation of the fan power contactor (see
low KV1/KV2 on the electric diagram) and/or of pressure transducer (see BHP on the
electric diagram) – (Air-Cooled).
 Ambient temperature is too low - restore nominal conditions (Air-Cooled).
 The hot gas by-pass valve is out of setting - contact a refrigeration engineer to
restore nominal setting.
◆ Excessive  The dryer doesn’t drain the condensate - see specific point.
pressure drop  The DewPoint is too low - the condensate is frost and blocks the air - see specific
within the dryer. point.
 Check for throttling the flexible connection hoses.
◆ The dryer doesn’t  The condensate drain service valve is closed - open it.
drain the  Verify the electric wiring.
condensate  The DewPoint is too low - the condensate is frost and blocks the air - see specific
point.
 Inlet compressed air pressure is too low and condensate is not drained – restore
nominal conditions.
 Electronic drainer is not operating correctly (see paragraph 7.16).
◆ The dryer  Electronic drainer is dirty (see paragraph 7.16).
continuously
drains
condensate.
◆ Water within the  The dryer doesn't start - see specific point.
line.  If installed - Untreated air flows through the by-pass unit - close the by-pass.
 The dryer doesn’t drain the condensate - see specific point.
 DewPoint too high - see specific point.
◆ HPS high  Check which of the following has caused the activation :
pressure switch 1. The ambient temperature is too high or the room aeration is insufficient - provide proper
has been ventilation (Air-Cooled).
activated. 2. The condenser is dirty - clean it (Air-Cooled).
3. The condenser fan doesn’t work - see specific point (Air-Cooled).
4. The cooling water is too hot - restore nominal conditions (Water-Cooled).
5. The cooling water flow is insufficient - restore nominal conditions (Water-Cooled).
 Reset the pressure switch pressing the button on the controller itself - verify the
dryer for correct operation.
 HPS pressure switch is faulty - contact a refrigeration engineer to replace it.
◆ LPS low pressure  There is a leak in the refrigerating fluid circuit - contact a refrigeration engineer.
switch has been  The pressure switch reset automatically when normal conditions are restored -
activated. check the proper operation of the dryer.

34 – EN ACT 180 – 1500

 Maintenance, troubleshooting, spare parts and dismantling

SYMPTOM POSSIBLE CAUSE - SUGGESTED ACTION

◆ Compressor  Check which of the following has caused the failure :
discharge 1. Eccessive thermal load – restore nominal conditions.
temperature too 2. The inlet air is too hot - restore nominal conditions.
high. 3. The ambient temperature is too high or the room aeration is insufficient - provide proper
ventilation (Air-Cooled).
4. The condenser unit is dirty - clean it (Air-Cooled).
5. The fan doesn’t work - see specific point (Air-Cooled).
6. The fan is always on – verify proper operation of fan power contactor (see KV1/KV2 on
electric diagram) and/or of pressure transducer (see BHP on electric diagram) – (Air-
Cooled).
7. The hot gas by-pass valve requires re-adjusting – contact a specialized technician to
restore nominal setting.
8. The temperature of the cooling water is too low – restore nominal conditions (Water-
Cooled).
9. The cooling water flow adjusting valve requires re-adjusting - contact a specialized
technician to restore nominal setting (Water-Cooled).
10. Refrigerant gas leak - contact a refrigeration engineer.
◆ Condensing  Check which of the following has caused the failure :
pressure too high 1. The ambient temperature is too high or the room aeration is insufficient - provide proper
ventilation (Air-Cooled).
2. The condenser unit is dirty - clean it (Air-Cooled).
3. The fan doesn’t work - see specific point (Air-Cooled).
4. The temperature of the cooling water is too hot – restore nominal conditions (Water-
Cooled).
5. Cooling water flow is not sufficient – restore nominal conditions (Water-Cooled).
◆ Condensing  Check which of the following has caused the failure :
pressure too low 1. The fan is always on – verify proper operation of fan power contactor (see KV1/KV2 on
electric diagram) and/or of pressure transducer (see BHP on electric diagram) – (Air-
Cooled).
2. Ambient temperature is too low - restore nominal conditions (Air-Cooled).
3. Air flows through the condenser even with fan off – protect dryer against wind or external
air flows (not caused by dryer’s fan) (Air-Cooled).
4. The temperature of the cooling water is too low – restore nominal conditions (Water-
Cooled).
5. The cooling water flow adjusting valve requires re-adjusting - contact a specialized
technician to restore nominal setting (Water-Cooled).
6. Refrigerant gas leak - contact a refrigeration engineer.
7. Compressor does not work – see specific point.

ACT 180 – 1500 35 – EN

 Maintenance, troubleshooting, spare parts and dismantling

SYMPTOM POSSIBLE CAUSE - SUGGESTED ACTION

◆ Electronic
 With led flashing : one or more alarms are active and the display shows
instrument
DMC24 and the active alarms.

The led is
 With led lighted : one or more alarms are waiting to be reset and the display
on or flashes. shows and the alarms that are no longer active but not yet reset.
 The alarms are displayed with the following messages :
1. : HP - HPS pressure switch tripped (refrigerant high pressure) for condensing
pressure too high - see specific paragraph (NOTE : when problem is solved press reset key
on HPS pressure switch).
2. : LP - LPS pressure switch tripped (low pressure) due to refrigerant pressure too low
- see specific paragraph.
3. : Con – during first startup – power phases of compressor are not connected
properly (see RPP on the electric diagram) – Change rotating direction swapping two
phases of the power supply of dryer. These changes have to be done only by a qualified
electrician. DO NOT BY PASS RPP PROTECTION: BY OPERATING THE MACHINE IN
WRONG ROTATING DIRECTION, THE COMPRESSOR WILL FAIL IMMEDIATELY AND
THE WARRANTY WILL BE VOIDED.
4. : Con – one phase of power supply of dryer is missing (see RPP on the electric
diagram) – restore the missing phase.
5. : Con – Reverse Phase Protector (RPP) is faulty – replace it.
6. : Con – electric protection of compressor tripped (see Q1/QC1 on the electric
diagram)– reset and verify the dryer’s proper operation.
7. : Con - if installed - thermal protection inside the compressor tripped (see MC1 on
wiring diagram – wait 30 minutes and try again.
8. : FAn - electric protection of fan tripped (see QV1 on the electric diagram) - reset and
verify the dryer’s proper operation (Air-Cooled).
9. : FAn – thermal protection inside the fan/s tripped (see MF on wiring diagram – wait
30 minutes and try again (Air-Cooled).
10. : Hdt – compressor discharge temperature protection tripped due to very high
temperature (probe T4) – see specific paragraph.
11. : ICE – temperature inside exchanger (probe T1) too low – DewPoint is too low - see
specific paragraph.
12. : LCP - condensing pressure too low – see specific paragraph.
13. : PF4 – failure temperature probe T4 (compressor discharge) – verify electric wiring
and/or replace probe.
14. : PFP – failure pressure transducer BHP (condensing pressure) – verify electric
wiring and/or replace transducer.

NOTE: after solving the problem, the alarms must be reset (press the keys
reset
log
simultaneously for 3 seconds). NOTE: if the led is powered it
means that the dryer is in remote mode and it is not possible to reset the alarm
from the panel. Switch the dryer in “local mode” to reset the alarm.

36 – EN ACT 180 – 1500

 Maintenance, troubleshooting, spare parts and dismantling

SYMPTOM POSSIBLE CAUSE - SUGGESTED ACTION

◆ Electronic
 With led flashing: one or more service warnings are active.
instrument
DMC24  With led lighted: one or more service warnings are waiting to be reset. The
display shows the DewPoint temperature and the active or not reset service
The led is
warning.
on or flashes.
 The service warnings are displayed with the following messages :
1. : PF1 – temperature probe failure T1 (DewPoint) – verify electric wiring and/or
replace probe.
2. : PF2 - temperature probe failure T2 (air IN) – verify electric wiring and/or replace
probe.
3. : PF3 - temperature probe failure T3 (compressor suction) – verify electric wiring
and/or replace probe.
4. : Hdp – DewPoint too high (higher than set HdA value) – see specific paragraph.
5. : Ldp - DewPoint too low - see specific paragraph.
6. : drn – the condensate drainer does not work properly (DRN contact open- if
electronic drainer is installed) - see specific paragraph.
7. : SrV - Service – maintenance notice time expired (parameter SrV) – carry out
planned maintenance and reset hour counter.
8. : dt – compressor supply temperature too high (probe T4) – see specific paragraph.
9. : HCP – condensing pressure too high – see specific paragraph.

NOTE: after solving the problem, the services must be reset (press the keys
reset
log
simultaneously for at least 3 seconds). NOTE: if the led is
powered it means that the dryer is in remote mode and it is not possible to reset
the service warning from the panel. Switch the dryer in “local mode” to reset
the service warning.

ACT 180 – 1500 37 – EN

 8.3

38 – EN
ACT & ACT-R
ID N. DESCRIPTION
180 210 250 300 360 400 500 600 720 900 1100 1200 1500
2 LPS Pressure switch 1 1 1 1 1 1 1 1 1 1 1 1 1
4 HPS Pressure switch 1 1 1 1 1 1 1 1 1 1 1 1 1
Spare parts

6 MC Compressor 1 1 1 1 1 1 1 1 1 1 1 1 1
Hot gas by-pass valve 2 2 2 2 2 1 1 1 1 1 1 1 1
7
Pilot valve 1 1 1
9 MV Complete fan 1 1 1 1 1 2 2 2 2 3 3 4 4
10 Filter drier 1 1 1 1 1 1 1 1 1 1 1 1 1
12 BTn Temperature probe 4 4 4 4 4 4 4 4 4 4 4 4 4
Display module 1 1 1 1 1 1 1 1 1 1 1 1 1
Main module (air cooled) 1 1 1 1 1 1 1 1 1 1 1 1 1
17 DMC24
Main module (water cooled) 1 1 1 1 1 1 1 1 1 1 1 1 1
Cable main module to display 1 1 1 1 1 1 1 1 1 1 1 1 1
19 Water regulating valve (water cooled) 1 1 1 1 1 1 1 1 1 1 1 1 2
Electronic drainer 1 1 1 1 1 2 2 2 2 3 3 4 4
21 ELD
Service unit for electronic drainer 1 1 1 1 1 2 2 2 2 3 3 4 4
22 QS Main switch 1 1 1 1 1 1 1 1 1 1 1 1 1
37 BHP Pressure transducer 1 1 1 1 1 1 1 1 1 1 1 1 1
Q1 1 1 1 1 1
QC1 1 1 1 1 1 1 1 1
Circuit breaker
QV1 1 1 1 1
QF1 1 1 1 1
Q1 1 1 1 1 1
QC1-QV1 Auxiliary contact 2 2 2 2
QC1-QF1 2 2 2 2
1 1 1 1 1 1 1 1 1
FU Fuse kit
1 1 1 1
KC1-KV1-KV2 3 3 3 3 3
60 KC1 1 1 1 1
Contactor
KV0-KV1-KV2 3 3 3 3 3 3 3 3
KC1 1 1 1 1
KC1 Auxiliary contact 1 1 1 1 1 1 1 1
KV1-KV2 Mechanical interlock 1 1 1 1 1 1 1 1 1 1 1 1 1
Maintenance, troubleshooting, spare parts and dismantling

KHP 1 1 1 1 1 1 1 1 1
KHP-KDR Relay 2 2 2 2
KDR 1 1 1 1
1 1 1 1 1 1 1 1 1
ID Numbers and exploded drawings Ref. with their description and quantity installed in the dryers.

TF Transformer
1 1 1 1
RPP Reverse phase protector 1 1 1 1 1 1 1 1 1 1 1 1 1
Spare parts list is printed on a dedicated sticker applied inside the dryer. On this sticker each spare part is
identified with its ID Number and related Spare Part Number. Here below the cross reference table between

ACT 180 – 1500

 Maintenance, troubleshooting, spare parts and dismantling
8.4 Maintenance operation on the refrigeration circuit
Maintenance and service on refrigerating systems must be carried out only by certified refrigerating
engineers only, according to local rules.
All the refrigerant of the system must be recovered for its recycling, reclamation or destruction.
Do not dispose the refrigerant fluid in the environment.
This dryer comes ready to operate and filled with R407C type refrigerant fluid.
In case of refrigerant leak contact a certified refrigerating engineer. Room is to be aired before any
intervention.
If is required to re-fill the refrigerating circuit, contact a certified refrigerating engineers.
Refer to the dryer nameplate for refrigerant type and quantity.
Characteristics of refrigerants used:
Refrigerant Chemical formula TLV GWP
R32/125/134a (23/25/52)
R407C - HFC 1000 ppm 1773.85
CHF2CF3/CH2F2/CH2FCF3

8.5 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 R407C, Oil
Canopy and Supports Carbon steel, Epoxy paint
Refrigerating compressor Steel, Copper, Aluminium, Oil
Alu-Dry Module Aluminium
Condenser Unit Aluminium, Copper, Carbon steel
Pipe Copper
Fan Aluminium, Copper, Steel
Valve Brass, Steel
Electronic Level Drain PVC, Aluminium, Steel
Insulation Material Synthetic rubber without CFC, Polystyrene, Polyurethane
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.
Refrigerant contains droplets of lubrication oil released by the refrigerating compressor.
Do not dispose 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.

ACT 180 – 1500 39 – EN

 Attachments
9 Attachments
Exploded views – List of components
1 Alu-Dry module 36 Liquid separator
1.1 Insulation material 37 Refrigerant pressure transducer
2 Refrigerant pressure switch LPS 43 Oil separator
4 Refrigerant pressure switch HPS 51 Front panel
6 Compressor 52 Back panel
7 Hot-gas bypass valve 53 Right lateral panel
8 Condenser (Air-Cooled) 54 Left lateral panel
9 Condenser fan (Air-Cooled) 55 Cover
10 Filter dryer 56 Base plate
11 Capillary tube 58 Support beam
13 Condensate drain service valve 59 Support bracket
17 Electronic instrument 60 Control panel
18 Condenser (Water-Cooled) 65 Condenser filter
19 Condenser water-regulating valve (Water-Cooled) 66 QE door
20 Refrigerant accumulator 81 Flow diagram sticker
21 Electronic drainer 83 Refrigerant service valve – H.P. side
22 Main switch 84 Refrigerant service valve – L.P. side

Electric diagrams – List of components

MC1 Compressor LPS Low pressure switch
MV1 - 4 Condensers fans HPS High pressure switch
DMC24 Electronic instr. DMC24 – Display module ELD Electronic drainer
DMC24MA Electronic instr. DMC24 – Main module QS Main switch with door block
BT1 - 4 Temperature probes RC Compressor crankcase heater
BHP Refrigerant pressure transducer RPP Reverse phase protector

NT1 Air-Cooled only NT5 Limit of equipment

NT2 Verify transformer connection according
NT6 Timed drain output
to power supply voltage
NT3 Jump if not installed NT7 Water Cooled only
NT4 Provided and wired by customer

BN Brown OR Orange
BU Blue RD Red
BK Black WH White
YG Yellow / Green WH / BK White / Black

40 – EN ACT 180 – 1500

 Attachments
9.1 Dryers dimensions
9.1.1 ACT 180 – 360

ACT 180 – 1500 41 – EN

 Attachments
9.1.2 ACT 400 – 720

42 – EN ACT 180 – 1500

 Attachments
9.1.3 ACT 900 - 1100

ACT 180 – 1500 43 – EN

 Attachments
9.1.4 ACT 1200 – 1500

44 – EN ACT 180 – 1500

 Attachments
9.2 Exploded views
9.2.1 ACT 180 – 360 Air Cooled

ACT 180 – 1500 45 – EN

 Attachments
9.2.2 ACT 180 – 360 Water Cooled

46 – EN ACT 180 – 1500

 Attachments
9.2.3 ACT 400 – 720 Air Cooled

ACT 180 – 1500 47 – EN

 Attachments
9.2.4 ACT 400 – 720 Water Cooled

48 – EN ACT 180 – 1500

 Attachments
9.2.5 ACT 900 – 1100 Air Cooled

ACT 180 – 1500 49 – EN

 Attachments
9.2.6 ACT 900 – 1100 Water Cooled

50 – EN ACT 180 – 1500

 Attachments
9.2.7 ACT 1200 – 1500 Air Cooled

ACT 180 – 1500 51 – EN

 Attachments
9.2.8 ACT 1200 – 1500 Water Cooled

52 – EN ACT 180 – 1500

 9.3
9.3.1
0 1 2 3 4 5 6 7 8 9

ACT 180 – 1500

TR 3/400V/50Hz+PE
QS
FU1
Electric diagrams

QC1
3/400V/50Hz+PE (*)
OR [2-6] 3/460V/60Hz+PE OR
3/460V/60Hz+PE (*) 3/380V/60Hz+PE
OR
3/380V/60Hz+PE (*) (1) TF
ACT 180 – 360 Sheet 1 of 3

FUSE MAX 16 A
RCD Id 0.03A suggested
Smin 2.5sqmm/14AWG

FU3
RPP
L1 L2 L3 KV1 FU2
1 3 5 1 3 5 [2-2] 1 3 5
KC1 KV2
[2-1] [2-3]
2 4 6 11 12 14 2 4 6 2 4 6

[2-6] 11
Attachments

KC1
[2-1] 12

U V W1 V2
W
M V1
M U2
3 3
U1 W2
TK TK

MC1 [2-7] RC
MV1 A B

(*) See dryer nameplate

(1) With Auto-Transformer TR installed
Technical modifications are subject to change without notice; errors not excluded.
Drawing no. : Rev.
FRACT5478QCD001 02
Note :
Sheet 01 of 03

53 – EN
 0 1 2 3 4 5 6 7 8 9
9.3.2

54 – EN
A

DMC24RU
LPS MV1
12 14 13
HPS P
Q1 [2-6]
KHP [1-3]
11 14
[2-0]
P
BHP BT1 BT2 BT3 BT4
P
mA
12 14
RPP [2-6]
11
ACT 180 – 360 Sheet 2 of 3

[1-4]

14 29 28 27 26 25 24 23 22 21 20 19 18 17 16
J2 J1
EXP DISPLAY
DMC24MA
K J3-RS485
I II T ZL
15 13 9 12 11 10 8 7 1 2 3 4 5 6 A B

A
Attachments

MAX 2A - 48V

A
[2-8]
4 5 6 4 5 6

22 24 ELD NO Alarm Alarm

and or
X3.1 X1.1 X2.1 Power ON Power OFF
KHP IN1 L/+ NO
[2-0] 21
GND N/- CO
X3.2 X1.2 X2.2

A1 A1 A1 A1
KHP KC1 KV1 KV2
A2 A2 A2 A2 [2-8]
B
14 11 1 2 1 2 1 2
12
[2-5] [1-3] [1-6] [1-5]
3 4 3 4 3 4
24 21
[1-3] [1-6] [1-5]
[2-1] 5 6 5 6 5 6
22 [1-3] [1-6] [1-5]
11 12 11 12 11 12
[1-9] NU NU

Technical modifications are subject to change without notice; errors not excluded.
Drawing no. : Rev.
FRACT5478QCD001 02
Note :
Sheet 02 of 03

ACT 180 – 1500

55 – EN ACT 180 – 1500
WIRE
TYPE

TERMINAL
TERMINAL
0

1 024 DAS.4
HIGH PRESSURE SWITCH
2 12
HPS

3 CDI
LOW PRESSURE SWITCH
4 DI2
LPS

5 CDI
FAN THERMAL PROTECTION
AIR COOLED ONLY - JUMP IF NOT INSTALLED 6 DI4
MV1
1

7 UDT
8 00
9 024
10 00
11 DR1
ELECTRONIC LEVEL DRAINER
12 DR2
ELD

13 CDI
14 DI5
2

RC1 00 DAS.4
COMPRESSOR CRANKCASE HEATER
RC2 10
RC

R L1
3

CBC.4
FROM TR TANSFORMER - 460V SIDE S L2
T L3
4
5
6
7

Note :
Drawing no. :
L1 L2 L3
PE
8

FRACT5478QCD001

Sheet
03
9

of
03
02
Rev.
Technical modifications are subject to change without notice; errors not excluded.
ACT 180 – 360 Sheet 3 of 3 9.3.3
Attachments
 0 1 2 3 4 5 6 7 8 9 9.3.4

56 – EN
TR 3/400V/50Hz+PE
QS
FU1
QC1 QV1
3/400V/50Hz+PE (*)
OR [2-6] [2-7] 3/460V/60Hz+PE OR
3/460V/60Hz+PE (*) 3/380V/60Hz+PE
OR
3/380V/60Hz+PE (*) (1) TF
ACT 400 – 720 Sheet 1 of 4

FUSE MAX 32 A
RCD Id 0.03A suggested
Smin 6sqmm/10AWG

FU3
RPP
L1 L2 L3
FU2
1 3 5
KC1 KV0 KV2 KV1
[2-1] 11 12 14 [2-1] [2-3] [2-2]
2 4 6
[2-6] 11
KC1
Attachments

[2-1] 12

U/T1 V/T2 W1 V2
W/T3
M MV1 V1
M U2
3 3
U1 W2
TK TK
MC1 [2-7]

W1 V2

MV2 V1
M U2
3 RC
U1 W2 A B
TK TK
[2-8]
(*) See dryer nameplate
(1) With Auto-Transformer TR installed
Technical modifications are subject to change without notice; errors not excluded.
Drawing no. : Rev.
FRACT5478QCD002 02
Note :
Sheet 01 of 04

ACT 180 – 1500

 0 1 2 3 4 5 6 7 8 9
9.3.5

ACT 180 – 1500

DMC24RU
13
LPS QV1
[1-5]
12 14 13 14
HPS P
QC1 [3-1]
KHP [1-3]
11 14
[2-0]
P MV2
BHP BT1 BT2 BT3 BT4
P
mA MV1
12 14
RPP [3-4]
11
ACT 400 – 720 Sheet 2 of 4

[1-4]

14 29 28 27 26 25 24 23 22 21 20 19 18 17 16
J2 J1
EXP DISPLAY
DMC24MA
K J3-RS485
I II T ZL
15 13 9 12 11 10 8 7 1 2 3 4 5 6 A B
Attachments

MAX 2A - 48V

4 5 6 4 5 6
A 22 24 A
NO Alarm Alarm
and or
KHP Power ON Power OFF
[2-0] 21

A1 A1 A1 A1 A1 A1
KHP KV0 KC1 KV1 KV2 KDR
A2 A2 A2 A2 A2 00 A2
B
14 11 1 2 1 2 1 2 1 2 14 11
[2-4] [1-5] [1-3] [1-7] [1-6] [3-0]
12 3 4 3 4 3 4 3 4 12
[1-5] [1-3] [1-7] [1-6]
24 21 5 6 5 6 5 6 5 6 24 21
22
[2-1] [1-5] [1-3] [1-7] [1-6] 22
[3-2]
11 12 11 12 11 12 11 12
N.U. [1-9] N.U. N.U.

Technical modifications are subject to change without notice; errors not excluded.
Drawing no. : Rev.
FRACT5478QCD002 02
Note :
Sheet 02 of 04

57 – EN
 0 1 2 3 4 5 6 7 8 9
9.3.6

58 – EN
A

[2-8]
[2-8]
12 14 22 24
KDR KDR
[2-5] 11 [2-5] 21
ACT 400 – 720 Sheet 3 of 4

ELD1 ELD2
X3.1 X1.1 X2.1 X3.1 X1.1 X2.1
IN1 L/+ NO IN1 L/+ NO

GND N/- CO GND N/- CO

X3.2 X1.2 X2.2 X3.2 X1.2 X2.2
Attachments

Technical modifications are subject to change without notice; errors not excluded.
Drawing no. : Rev.
FRACT5478QCD002 02
Note :
Sheet 03 of 04

ACT 180 – 1500

59 – EN ACT 180 – 1500
WIRE
TYPE

TERMINAL
TERMINAL
0

1 024 DAS.4
HIGH PRESSURE SWITCH
2 12
HPS

3 CDI
LOW PRESSURE SWITCH
4 DI2
LPS

5 35
FAN THERMAL PROTECTION
AIR COOLED ONLY - JUMP IF NOT INSTALLED 6
MV1
1

7
FAN THERMAL PROTECTION
AIR COOLED ONLY - JUMP IF NOT INSTALLED 8 DI4
MV2

9 UDT
10 00
11 024
12 00
13 31
2

ELECTRONIC LEVEL DRAINER

14 32
15 CDI
ELD1

16
17 024
18 00
19 33
ELECTRONIC LEVEL DRAINER
20 34
3

21 DI5
ELD2

22
RC1 00 DAS.4
COMPRESSOR CRANKCASE HEATER
RC2 10
RC
4

R L1 CBC.4
FROM TR TANSFORMER - 460V SIDE S L2
T L3
5
6
7

Note :
Drawing no. :
L1
8

L2
L3
PE

FRACT5478QCD002

Sheet
04
9

of
04
02
Rev.
Technical modifications are subject to change without notice; errors not excluded.
ACT 400 – 720 Sheet 4 of 4 9.3.7
Attachments
 0 1 2 3 4 5 6 7 8 9
9.3.8

60 – EN
[2-0]

TR 3/400V/50Hz+PE
QS
FU1
QC1
3/400V/50Hz+PE (*)
OR [3-6] 3/460V/60Hz+PE OR
3/460V/60Hz+PE (*) 3/380V/60Hz+PE
OR
3/380V/60Hz+PE (*) (1) TF
FUSE MAX 63A
ACT 900 – 1500 Sheet 1 of 7

RCD Id 0.03A suggested

Smin 16sqmm/6AWG

FU3
RPP
L1 L2 L3
FU2
1 3 5
KC1
[3-2] 11 12 14
2 4 6
[3-6] 11
KC1
Attachments

[3-2] 12

U/T1 V/T2
W/T3
M
3
TK TK
[3-6] U/T1 V/T2 L1 L2 L3
W/T3
MC1 M
3 L N S1 S2 M1 M2

[3-6]
RC
A B

(*) See dryer nameplate

(1) With Auto-Transformer TR installed
Technical modifications are subject to change without notice; errors not excluded.
Drawing no. : Rev.
FRACT5478QCD003 01
Note :
Sheet 01 of 07

ACT 180 – 1500

 0 1 2 3 4 5 6 7 8 9 9.3.9

[1-9]

ACT 180 – 1500

QV1
[3-7]
ACT 900 – 1500 Sheet 2 of 7

KV0 KV2 KV1

[3-1] [3-3] [3-2]
Attachments

W1 V2 W1 V2

MV1 V1
M U2 MV3 V1
M U2
3 3
U1 W2 U1 W2
TK TK TK TK
[3-7] [3-8]

W1 V2 W1 V2

MV2 V1
M U2 MV4 V1
M U2
3 3
U1 W2 U1 W2
TK TK TK TK
[3-7] [3-8]

Technical modifications are subject to change without notice; errors not excluded.
Drawing no. : Rev.
FRACT5478QCD003 01
Note :
Sheet 02 of 07

61 – EN
 0 1 2 3 4 5 6 7 8 9

62 – EN
A

13 13
QC1 QV1
[1-3] [1-5] MV3
14 14

DMC24RU
12 14
LPS MV1 [4-1]
12 14 RPP
[1-4] 11
HPS P
KHP
11

CONDENSING PRESS.
DEWPOINT TEMP.
AIR IN TEMP.
COMPRES. SUCTION TEMP.
COMPRES. DISCHARGE TEMP.
[3-0]
P
BHP BT1 BT2 BT3 BT4 MV4
MC1
P
mA
9.3.10 ACT 900 – 1500 Sheet 3 of 7

MV2
[4-8]

14 29 28 27 26 25 24 23 22 21 20 19 18 17 16
J2 J1
EXP DISPLAY
DMC24MA
K J3-RS485
I II T ZL
15 13 9 12 11 10 8 7 1 2 3 4 5 6 A B
Attachments

MAX 2A - 48V
A A
22 24
KHP
[3-0] 21 4 5 6 4 5 6
NO Alarm Alarm
and or
Power ON Power OFF

A1 A1 A1 A1 A1 A1
KHP KV0 KC1 KV1 KV2 KDR
A2 A2 A2 A2 A2 00 A2
B
14 11 1 2 1 2 1 2 1 2 14 11
[3-4] [2-1] [1-3] [2-3] [2-2] [4-0]
12 3 4 3 4 3 4 3 4 12
[2-1] [1-3] [2-3] [2-2]
24 21 5 6 5 6 5 6 5 6 24 21
22
[3-2] [2-1] [1-3] [2-3] [2-2] 22
[4-2]
11 12 11 12 11 12 11 12
N.U. [1-9] N.U. N.U. 34 31
32 [4-5]
44 41
42 [4-7]
Technical modifications are subject to change without notice; errors not excluded.
Drawing no. : Rev.
FRACT5478QCD003 01
Note :
Sheet 03 of 07

ACT 180 – 1500

 0 1 2 3 4 5 6 7 8 9

ACT 180 – 1500

[3-8]
12 14 22 24 32 34 42 44 [3-8]
KDR KDR KDR KDR
[3-5] 11 [3-5] 21 [3-5] 31 [3-5] 41
9.3.11 ACT 900 – 1500 Sheet 4 of 7

ELD1 ELD2 ELD3 ELD4

X3.1 X1.1 X2.1 X3.1 X1.1 X2.1 X3.1 X1.1 X2.1 X3.1 X1.1 X2.1
IN1 L/+ NO IN1 L/+ NO IN1 L/+ NO IN1 L/+ NO

GND N/- CO GND N/- CO GND N/- CO GND N/- CO

X3.2 X1.2 X2.2 X3.2 X1.2 X2.2 X3.2 X1.2 X2.2 X3.2 X1.2 X2.2
Attachments

Technical modifications are subject to change without notice; errors not excluded.
Drawing no. : Rev.
FRACT5478QCD003 01
Note :
Sheet 04 of 07

63 – EN
ACT 180 – 1500 64 – EN
WIRE
TYPE

TERMINAL
TERMINAL
0

1 024 DAS.4
HIGH PRESSURE SWITCH
2 12
HPS

3 CDI
LOW PRESSURE SWITCH
4 DI2
LPS

5 15
COMPRESSOR THERMAL PROTECTION
mod. 1500 ONLY - JUMP IF NOT INSTALLED 6 DI3
1

7 35
FAN THERMAL PROTECTION
AIR COOLED ONLY - JUMP IF NOT INSTALLED 8
MC1 MV1

9
FAN THERMAL PROTECTION
AIR COOLED ONLY - JUMP IF NOT INSTALLED 10
MV2

11
FAN THERMAL PROTECTION 12
AIR COOLED ONLY - JUMP IF NOT INSTALLED
MV3

13
FAN THERMAL PROTECTION
2

AIR COOLED ONLY - JUMP IF NOT INSTALLED 14 DI4

MV4

15 UDT
16 00
17 024
18 00
19 41
ELECTRONIC LEVEL DRAINER
20 42
3

21 CDI
ELD1

22
23 024
24 00
25 43
ELECTRONIC LEVEL DRAINER 26 44
4

27
ELD2

28
29 024
30 00
31 45
ELECTRONIC LEVEL DRAINER 32 46
33
ELD3
5

34
35 024
36 00
37 47
ELECTRONIC LEVEL DRAINER 38 48
39 DI5
ELD4

40
6
7

Note :
Drawing no. :
8

FRACT5478QCD003

Sheet
05
9

of
07
01
Rev.
Technical modifications are subject to change without notice; errors not excluded.
9.3.12 ACT 900 – 1500 Sheet 5 of 7
Attachments
65 – EN ACT 180 – 1500
WIRE
TYPE

TERMINAL
TERMINAL
0

RC1 00 DAS.4
COMPRESSOR CRANKCASE HEATER
RC2 10
RC

00 00
COMPRESSOR THERMAL PROTECTION SUPPLY
mod. 1500 ONLY 230 230
MC1
1

U1.1 R3 DAS.4
V1.1 S3
W1.1 T3
3

W2.1 R4
M

2x FAN MOTOR
U2.1 S4
MV2
MV1

V2.1 T4
U1.2 R3
2

V1.2 S3
W1.2 T3
3

W2.2 R4
M

2x FAN MOTOR
MV4 mod. 1200-1500 ONLY U2.2 S4
MV4
MV3

V2.2 T4
3

R L1 CBC.4
FROM TR TANSFORMER - 460V SIDE S L2
T L3
4
5
6
7

Note :
Drawing no. :
8

FRACT5478QCD003

Sheet
06
9

of
07
01
Rev.
Technical modifications are subject to change without notice; errors not excluded.
9.3.13 ACT 900 – 1500 Sheet 6 of 7
Attachments
 0 1 2 3 4 5 6 7 8 9

66 – EN
L1
L2
L3
PE
9.3.14 ACT 900 – 1500 Sheet 7 of 7
Attachments

Technical modifications are subject to change without notice; errors not excluded.
Drawing no. : Rev.
FRACT5478QCD003 01
Note :
Sheet 07 of 07

ACT 180 – 1500

COSTRUTTORE / MANUFACTURER :
FRIULAIR S.r.l.
Sede Legale:
34077 - Ronchi dei Legionari (GO) – ITALY
Via Joze Srebernic, 10
Cap.Soc. € 12.480 i.v.
P.IVA 00430110312
Export MGO001913
COD.ID.CEE IT 00430110312
R.E.A.GO n.51691
Cod.Fisc.e Reg.Impr. 00430110312
Sede Operativa:
33050 - Cervignano del Friuli (UD) – ITALY
Via Cisis, 36 - S.S.352 Km 21 Fraz. Strassoldo

www.friulair.com

Istruzioni originali in ITALIANO - Con riserva di modifiche ed errori

Original instructions are in ITALIAN - Subject to technical changes without prior notice; errors not excluded

EN - Subject to technical changes without prior notice; errors not excluded / Translation of original instructions