Air Techniques AirStar Eco5 ASE121A User manual

ASE121A • ASE122A • ASE220A • ASE250A • ASE450A • ASE600A
ASE121D • ASE122D • ASE220D • ASE250D • ASE450D • ASE600D
DENTAL AIR SYSTEM
OPERATING INSTRUCTIONS

Page 3Air Techniques, Inc.Air Techniques, Inc. Page 2
The present operating instructions give you all the necessary advice for the proper and
safe handling of the oil-free air compressor units.
Please read and carefully observe the operating instructions to avoid mistakes and
dangerous situations.
The operating instructions are arranged as follows:
Chapter Planned Purpose Target group
Chapter 1 Gives you safety advice and important
general information for the products.
Installer, Operator, Qualified
Personnel, User
Chapter 2 Contains detailed instructions and advice
for the transport, storage, installation and
the initial operation of the product.
Operator, Installer and Qualied
Personnel
Chapter 3 Contains instruction and advice for safe
technical handling of the product.
User
Chapters 4
& 5
Provides detailed instruction for cleaning,
maintenance and servicing the product.
Operator, Qualied Personnel
Appendix In the appendix you will nd important
technical information.
Qualied Personnel
This operating manual is valid for oil-free air compressor units, hereinafter called product.
The operating manual is only valid so long as your product complies with the information
described within.
These instructions contain all details required for the transport, installation, operation,
shut-down and maintenance of the product.
Therefore, please read the operating instructions carefully prior to the rst operation, thus
ensuring the safe and economic application of the products.
When a fault occurs or maintenance is required, which is not covered by this operating
manual, you should contact your authorized distributor. Therefore, it is essential to hold
the exact product description in readiness.
Important: All service and maintenance work must be carried out by
Qualied Personnel.
If service and maintenance work is neglected or carried out improperly, our warranty will
be invalidated. Should you have any problems understanding the operating instructions
please contact your local Air Techniques representative or distributor from which the unit
was purchased.
Preface

Page 3Air Techniques, Inc.Air Techniques, Inc. Page 2
Table of Contents
1. Introduction and General Advice . . . . . . . . . . . . . . . . . . . . . 4
1.1 Symbol explanation and denition . . . . . . . . . . . . . . . . . . . . .4
1.1.1 Symbol explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.1.2 Denitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.2 General safety advice . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.3 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.3.1 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.3.2 Function description without drying installation (A-Units) . . . . . . . . .6
1.3.3 Function description with drying installation (D-Units) . . . . . . . . . . .7
2. Transport, Storage, Initial Operation . . . . . . . . . . . . . . . . . . . . 9
2.1 Transport and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
2.2 Transport and storage requirements . . . . . . . . . . . . . . . . . . . .9
2.3 Assembly advice and initial operation . . . . . . . . . . . . . . . . . . .9
2.3.1 Environmental conditions . . . . . . . . . . . . . . . . . . . . . . . . . . .9
2.3.2 Compressed air connection . . . . . . . . . . . . . . . . . . . . . . . . .10
2.3.3 Electrical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
2.3.4 Motor protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.3.5 Circuit diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.4 Electromagnetic Compatibility (EMC) Compliance Information . . . .13
2.5 Initial operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
3. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.1 Switching on the product . . . . . . . . . . . . . . . . . . . . . . . . . .15
3.2 Switching off the product . . . . . . . . . . . . . . . . . . . . . . . . . .15
3.3 Switching on the product after a power supply interruption . . . . . . .15
4. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.1 Maintenance, Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . .16
4.2 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
4.2.1 Drain condensate water from pressure tank . . . . . . . . . . . . . . . .16
4.2.2 Changing suction lters . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
4.2.3 Check safety valve function . . . . . . . . . . . . . . . . . . . . . . . . .17
4.3 Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
5. Shutdown and disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Appendix
Appendix 1: Technical data . . . . . . . . . . . . . . . . . . . . . . .20
Appendix 2: Trouble shooting . . . . . . . . . . . . . . . . . . . . . . .22
Appendix 3: Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . .23

Page 5Air Techniques, Inc.Air Techniques, Inc. Page 4
1 INTRODUCTION AND GENERAL ADVICE
1.1 Symbol explanation and denition
1.1.1 Symbol explanation
In the manual and on the product hand symbols and pictograms are used whose
meaning you should memorize. These symbols help you to understand the information
in this manual quicker and make you aware of potential danger or important advice.
Introduction and General Advice
1.1.2 Denitions
User, Operator: The responsible person who has the authorization to use the product.
The user must have been given instructions on the safe handling of the unit from the
appropriate authority.
Operator Authority: Responsible for the safe installation, regular servicing and cleaning of
the product.
Qualied personnel: Trained by the operating authority or by authorized Air Techniques
personnel who are aware of the dangers of the product and familiar with the technical
aspects of the product. Qualied personnel are trained to carry out service and repair on
the product.
Product: General term used for oil-free compressor stations.
1.2 General safety advice
During use, care and maintenance of the product, the following fundamental safety
measures must be observed for the protection of the operator, maintenance and service
engineers as well as the product:
Attention! Danger sign. It points out danger as well as rules and bans to
prevent personal and /or danger to property.
Advice! Attention is brought to advise on the handling and economic use of
product.
Warning against electric energy! Your life could be in danger. Make sure

Warning advice. The product can start without warning! On the product
and in the operating instruction special information signs and warning sym-
bols with following meaning are used
Warning of hot surfaces! There is a danger of burns! Observe especially
󰀨
󰀨
Warning! When electrical equipment is being used, the basic safety precau-

Please read the manual prior to starting work. Keep this manual within reach
for the engineer and the operator. The information should be passed on to
any successor.

Page 5Air Techniques, Inc.Air Techniques, Inc. Page 4
Introduction and General Advice
During operation of the product the relevant laws and regulations for the place of deployment
must be observed. In the interest of safe operation, the authorized operator and the supervisory
personnel are responsible for keeping within the regulations.
Check during all work on the product for possible dangers. All parts must be correctly t-
ted and all requirements fullled to ensure safe operation. Should the product be damaged
in any way, the product should no longer be used. The product should only be repaired by
experts. Mark the defect clearly and put Main power / pressure switch to the OFF position, so
that until the repair is effected, no accidents or damage can occur through the defective
product.
Take account of environmental inuences!
Do not operate the product in a wet or damp environment.
The Main power / pressure switch is the Mains Disconnect that can be manually set to
the OFF position to remove power. The tank must be depressurized prior to repairing
items after the check valve.
Attention! In dangerous situations or during technical problems, turn the
󰀨
Regularly check the power supply line and the casings of electrical components and if they

-
aged. If there is damage, do not operate the product.
Warning! If there is damage, do not operate the product. Remove power by
placing the Main power / pressure switch to the OFF position.
Attention! Work on electrical equipment must only be carried out by a quali-


Warning! The use of other spare parts and other accessories, as stated in

manufacturer
Warning of hot surfaces! Do not touch hot surfaces. The surfaces of the
machine can still be hot after shutdown. Mind this especially at mobile com-
pressor stations.
1.3 Product description
1.3.1 Intended use
The AirStar ECO is intended to generate and supply dry compressed air that is 100% oil-less
for use in dental setting.
Warning! Do not operate the product around harmful chemicals or explosive


The product is designed for operation in a dry, well ventilated room. Never expose the
compressor station to rain. The product should not operate in a damp or wet environment.
In addition, never operate the product near gases or ammable uids.

Page 7Air Techniques, Inc.Air Techniques, Inc. Page 6
Introduction and General Advice
1.3.2 Function description without drying installation (A-Units)
The following provides the functional description for product units ASE121A, ASE122A,
ASE220A, ASE250A, ASE450A and ASE600A.
Each product consists of a (multiple) piston compressor(s), a pressure tank and tank outlet
assembly (control gear) with operating and safety elements. See Figure 1a. Via the intake
lter (7), atmospheric air is aspirated. This air is compressed by the piston in the cylinder(s)
(1). The inlet or outlet valve shuts off ow in one direction, so the compressed air is made
to lead into the pressure hose (8) through the check valve into the pressure tank (2).
The compressor aggregate (1) supplies compressed air until the set cut-out pressure of 8
bar (116 psi) is indicated in the Main power / pressure switch (3) before switching off. The
tank pressure is indicated by the pressure gauge (5). Excessive pressure is released by the
integrated safety relief valve (6).
The tank pressure reduces when being used for procedures. On reaching the start-up
pressure the compressor aggregate will be automatically restarted by the Main power /
pressure switch.
1 5 Pressure Gauge 9 Damping Mount
2Pressure Tank 6 Safety Relief Valve 10 Damping Foot
3Pressure Switch/
Mains Disconnect 7 Intake Filter 11 Air Water Separator
4 Air Outlet 8 Pressure Hose
Figure 1a. Dryer-less Compressor Key Components
1
9
3
2
11
10
5
6
4
87 7

Page 7Air Techniques, Inc.Air Techniques, Inc. Page 6
Introduction and General Advice
1.3.3 Function description with drying installation (D-Units)
The following provides the functional description for product units ASE121D, ASE122D,
ASE220D, ASE250D, ASE450D and ASE600D.
Each product consists of a (multiple) piston compressor(s), a pressure tank, a tank outlet
assembly (control gear) with operating and safety elements, a cooler and a membrane
dryer.
See Figure 1b. Via the air intake lter (9), atmospheric air is aspirated. This air will be
compressed by the piston in the cylinder(s) (1). The inlet or outlet valve shuts off ow in
one direction, so the compressed air is made to lead into the pressure hose (10) which
leads the compressed air to the cooler (7), then the membrane dryer (8) through the
check valve into the pressure tank (2).
The temperature of the air entering the cooler is lowered substantially prior to entering
the unit’s membrane dryer. At this point, the majority of liquid water is condensed from
the air stream by the coalescent lter and is removed through the automatic drain valve.
The remaining moisture in the air is nally purged from the air-stream using hundreds of tiny
membrane bers that wick away all remaining saturation. The 100% moisture-free air ows
through the check valve to the tank.
For regeneration, a small portion of air is directed via the purge nozzle to the outside
walls of the membrane bers. This regeneration happens continuously during operation.
The compressor aggregate (1) generates compressed air as long as the Main power /
pressure switch (3) signals that the adjusted cut-out pressure is not reached. The pressure is
indicated by the pressure gauge (5). Excessive pressure will be released by the integrated
safety relief valve (6).
The tank pressure reduces when being used for procedures. On reaching the cut-in
pressure the compressor aggregate will be automatically restarted by the Main power /
pressure switch.

Page 9Air Techniques, Inc.Air Techniques, Inc. Page 8
1 5 Pressure Gauge 9 Intake Filter
2Pressure Tank 6 Safety Relief Valve 10 Pressure Hose
3Pressure Switch/
Mains Disconnect 7 11 Damping Mount
4 Air Outlet 8 Membrane Dryer 12 Damping Foot
Introduction and General Advice
Figure 1b. Compressor with Dryer Key Components
1
2
4
3
11
8
7
12
56
10
99

Page 9Air Techniques, Inc.Air Techniques, Inc. Page 8
Transport, Storage, Initial Operation
2 TRANSPORT, STORAGE, INITIAL OPERATION
2.1 Transport and Storage
All AirStar ECO products are sent from the factory fully packaged to prevent transit
damage. Always use the original packaging of the product as necessary. Transport the
product in an upright position. Do not pick up the unit by the membrane dryer or cooler
assembly.
Protect the equipment during transport and storage against damp and extreme temperatures.
Take special care that the electrical equipment does not get damp or wet.
Only transport products depressurized! 
containers and hoses prior to shipment.
Before transporting or storage, the condensate water in the tank and dryer condensate
bowl must be drained completely (see chapter 4: maintenance and service). The
products are delivered for immediate assembly. Products still in the original packing
can be stored in warm, dry and dust free rooms. If the products should be stored long
term, e.g. as a replacement product, it must be protected against dust and humidity.
Keep packaging if at all possible
Environmental rules regarding the disposal of the packaging must be observed and to
assist this please note the labels on the packaging.
2.2 Transport and storage requirements
Temperature: 0 to 150°F (-18 to 65°C)
Relative humidity: 0% to 90% (without condensation).
2.3 Assembly advice and initial operation
The installation and initial operation must only be carried out by a specialist familiar with
the handling of the product.
2.3.1 Environmental conditions
The product must only be installed and operated in dry, well ventilated rooms.
Take care when choosing the site for installation that the product is easily accessible
for operating, cleaning and maintenance. Especially the connection piece and the
operational parts must be easily accessible.
The product should be installed on a level and solid surface. To reduce vibration, the
supplied vibration dampers should be mounted. If the product is built into a machine or
housing, it must be noted that the identication plate is visible and readable, without
having to dismantle the product. Also ensure that the connection clamps are easily
accessible when taking off or opening the housing.

󰀩
from the side wall distance.

Page 11Air Techniques, Inc.Air Techniques, Inc. Page 10
Transport, Storage, Initial Operation
2.3.2 Compressed air connection
The compressor units are tted as standard with control gear, consisting of a Main
power / pressure switch, pressure gauge, safety valve, check valve and condensate
drain.
The compressed air connection (D units) or outlet of the air water separator (A units).
takes place at the Main power / pressure switch via a ¼ inch (0.635 cm) tapered
thread. A quick coupling with hose nozzle is included in the scope of delivery. Fasten the
pressure hose at the hose nozzle with the help of a hose clamp.
Approximately 70% of the products induced electrical energy is converted into heat and is
󰀨
To prevent vibration transference, it is advisable to install a exible pressure hose between
the outlet connection and user’s line. As a further accessory, a pressure reducer unit (see
gure 4) can be connected.
Attention! The connection to the mains voltage supply must only be carried out by a quali-

2.3.3 Electrical installation
Observe closely the local regulations for power undertakings. The connection must only be
carried out on a power supply with correctly installed protective conductor.
The equipment is hard wired to the power supply, a switch arrangement must be arranged
with at least a 0.1 inch (3 mm) wide contact opening (e.g. heavy duty switch).
Prior to making the electrical connection, check the mains voltage and frequency. They
should correspond with the specications on the model label.
Please observe that the relevant circuit is protected by the correct breaker. The following
lists the current, breaker rating, line cord size and length required for each model.
Important: Due to harmonics and icker data requirements, the product should be installed
in a location with a maximum permissible system impedance, Zsys, of:
Z = 0.109 Ohm + j 0.068 Ohm (0.109 Ohm + 216 µH).
 ASE121
(A/D)
ASE122
(A/D)
ASE220
(A/D)
ASE250
(A/D)
ASE450
(A/D)
ASE600
(A/D)
 110 230 230 230 230 230
Frequency (Hz) 50 / 60 50 / 60 50 / 60 50 / 60 50 / 60 50 / 60
 9.2 / 9.2 4.3 / 4.3 6.7 / 8.3 6.7 / 8.3 13.3 / 16.6 20.0 / 24.8
Device Breaker Rating (Amps) 15 6 10 10 20 25
Max Panel Breaker Rating (Amps) *see note 20 15 15 15 30 30
Minimum Wire Size (AWG) *see note 14 18 18 18 12 10
 666666
*Note: Ratings are for North America only. Follow all local codes when installing at other locations.

Page 11Air Techniques, Inc.Air Techniques, Inc. Page 10
Transport, Storage, Initial Operation
When using outside of normal operating conditions the installation of an over current switch
is absolutely essential!
Should the installation procedures be disregarded or carried out incorrectly the warranty
will be invalidated!
Motor protection for 1-stage AC-current motors:
The motors are equipped with a thermal protection switch to prevent overheating of the
motor windings. In the case of too high an ambient temperature, the thermal protection
switch shuts down the unit by cutting off the operating current.
2.3.5 Circuit diagram
The connection to the mains voltage supply must only be carried out by a qualied
electrician!
2.3.4 Motor protection
Attention! 󰀨
Warning! If the motor locks for example on starting against pressure or a short circuit in

switch might get damaged. This can only be controlled in a safe way by the installation of an
external overload protector.

Page 13Air Techniques, Inc.Air Techniques, Inc. Page 12
Model ASE121
(A/D)
ASE122
(A/D)
ASE220
(A/D)
ASE250
(A/D)
ASE450
(A/D)
ASE650
(A/D)
Motor A-100 A-100 A-200 A-200 A-200 A-200
Number of Motors 1 1 1 1 2 3
Nominal Voltage (V) 110 230 230 230 230 230
Frequency (Hz) 50/60 50/60 50/60 50/60 50/60 50/60
 9.2/9.2 4.3/4.3 6.7/8.3 6.7/8.3 13.3/16.6 20.0/24.8
Device Breaker Rating (A) 15 6 10 10 20 25
Panel Breaker Rating (A) 20 15 15 15 30 30
Max Wire Size (AWG) 14 18 18 18 12 10
 666666
Figure 2. Circuit diagram for one-phase alternating current
Transport, Storage, Initial Operation
Model ASE121 ASE122 ASE220 ASE250 ASE450 ASE600
Nominal Voltage (V)
Frequency (Hz)
Max Running Current (A)
Device Breaker Rating (A)
110 230
A-100 A-100 A-200 A-200 A-200
15 610102025
14 18
Table 1
Panel Breaker Rating (A)
Max Wire Size (AWG)
50/60
9.2/9.2
20
Line Cord Length (ft)
Motor
50/60
4.3/4.3
15
A-100
666666
6.7/8.3 13.3/16.6 20.0/24.86.7/8.3
230
50/60 50/60 50/60 50/60
230 230 230
15 15 30 30
18 18 12 10
CB1
COOLER FAN
MOTOR 1
CB2
MOTOR 3
MOTOR 2
L1
L2
1 2 1 2
PRESSURE SWITCH MANIFOLD POWER DISTRIBUTION ENCLOSURE
BLU(WHT)
BRN(BLK)
WHT
BLK
GRN/YEL(GRN)
See Table 1 For Models
See Table 1 For Models
Factory wired Line Cord,
Jacketed Service Cable
GRN
GRN/YEL(GRN)
BRN(BLK)
BLU(WHT)
GRN/YEL(GRN)
BLU(WHT)
BRN(BLK)
GRN/YEL(GRN)
BLU(WHT)
BRN(BLK)
NOTE: Wire colors in parenthesis are for units sold in North America.
111Number of Motors 213
Used only on D-Units

Page 13Air Techniques, Inc.Air Techniques, Inc. Page 12
Phenomenon Basic EMC
standard or test method IMMUNITY TEST LEVELS

  8 kV contact
± 2 kV, ± 4 kV, ± 8 kV, ± 15 kV air
 
3 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz

communications equipment  See 8.10.
RATED power frequency magnetic
  30 A/m 50 Hz or 60 Hz
Electrical fast transients / bursts  ± 2 kV
100 kHz repetition frequency
Surges Line-to-line  ± 0,5 kV, ± 1 kV
Surges Line-to-ground  ± 0,5 kV, ± 1 kV, ± 2 kV

 
3 V
0,15 MHz – 80 MHz
6 V in ISM bands
between 0,15 MHz and
80 MHz
80 % AM at 1 kHz
Voltage dips 
0 % UT; 0,5 cycle
At 0°, 45°, 90°, 135°, 180°, 225°, 270° and 315°
0 % UT; 1 cycle and 70 % UT; 25/30 cycles
Single phase: at 0°
Voltage interruptions  0 % UT; 250/300 cycle
2.4 Electromagnetic Compatibility (EMC) Compliance Information
The following provides the technical data used to show that each AirStar ECO is designed
and manufactured to meet the electromagnetic requirements of International standard
as shown below. The user should ensure that the AirStar ECO unit is indeed used within this
environment to ensure that the system will perform as intended.
Warning! 
avoided because it could result in improper operation. If such use is necessary, this equip-
ment and the other equipment should be observed to verify that they are operating normally.
Warning! 
by the manufacturer of this equipment could result in increased electromagnetic emissions
or decreased electromagnetic immunity of this equipment and result in improper operation.
Warning! Portable RF communications equipment (including peripherals such as antenna
cables and external antennas) should be used no closer than 30 cm (12 inches) to any part

the performance of this equipment could result.
Transport, Storage, Initial Operation

Page 15Air Techniques, Inc.Air Techniques, Inc. Page 14
Test
frequency
(MHz)
Band
(MHz) Service Modulation Maximum power (W)
Distance
(m)
TEST LEVEL
IMMUNITY
(V/m)
385 380 –390 TETRA 400
Pulse
modulation
18 Hz
1,8 0,3 27
450 430 – 470 GMRS 460,
FRS 460
FM ± 5 kHz
deviation
1 kHz sine
2 0,3 28
710
704 – 787 LTE Band
13, 17
Pulse
modulation
217 Hz
0,2 0,3 9745
780
810
800 – 960
GSM 800/900,
TETRA 800,
iDEN 820,

LTE Band 5
Pulse
modulation
18 Hz
2 0,3 28
870
930
1 720
1700 – 1990
GSM 1800;

GSM 1900;

LTE Band 1, 3,
4, 25; UMTS
Pulse
modulation
217 Hz
2 0,3 28
1 845
1 970
2 450 2400 – 2570
Bluetooth,
WLAN,
802.11 b/g/n,
RFID 2450,
LTE Band 7
Pulse
modulation
217 Hz
2 0,3 28
5 240
5100 – 5800 WLAN 802.11
a/n
Pulse
modulation
217 Hz
0,2 0,3 95 500
5 785
Transport, Storage, Initial Operation
Advice: The EMISSIONS characteristics of this equipment make it suitable for use in industri-

󰀨-
dio-frequency communication services. The user might need to take mitigation measures, such
as relocating or re-orienting the equipment.
2.5 Initial operation
• Make sure the product Main power / pressure switch is set to “O” - “OFF” position.
• Check that the connections are correctly made to the compressed air components.
• Make sure the unit is correctly connected to the power supply.
• Check that all air lters are correctly tted.
• Switch the compressor unit on by setting the Main power / pressure switch to the “I” -
AUTO” position switch.
• Listen during operation for unusual noises.
• Check the cut-out pressure of the product 115 PSI +/- 5 PSI.
• Check the cut-in pressure of the unit by releasing the pressure - 85 PSI +/- 5 PSI.
Note: the cut-in and cut-out pressure may be adjusted by removing the plastic
pressure switch cap and adjusting the screw within.

Page 15Air Techniques, Inc.Air Techniques, Inc. Page 14
Operation
3 OPERATION
The operation of the product is quite simple and is mostly automatic.
Warning! Please always remember that the product has hot surfaces. There is a danger of
burns if the surface is touched.
Warning! In the case of danger, separate the machine from the mains by placing the
Main power / pressure switch to the “O” - “OFF” position.
60 Hz units must operate at a 50% Duty cycle: 15 minutes maximum On time and 15 minutes
󰀨
3.1 Switching ON the product
The product is switched on at the Main power / pressure switch to setting “I” - “AUTO”. The
product starts and the pressure tank lls up. When reaching the switch-off pressure, the
product turns off automatically.
Please watch closely that the maximum permitted operating pressure is not exceeded.
The permitted operating pressure is marked on the tted pressure gauge with a red line.
If the permitted operating pressure is exceeded, you must switch the product off and
separate it from the mains supply. Inform the responsible qualied staff.
3.2 Switching OFF the product
Switch off the product by placing the Main power / pressure switch to the “O” - “OFF”
position.
3.3 Switching ON the product after a power supply interruption
Advice:󰀩

automatic starter valve.
1. Switch off product at the Main power / pressure switch.
2. Check device breakers at back of unit. If breaker has tripped, the white reset button
will be protruding. Re-depress breaker reset button.
3. Restart the machine at the Main power / pressure switch, after the air has been
blown-off of the starting volume (this will take approximately 5 seconds).

Page 17Air Techniques, Inc.Air Techniques, Inc. Page 16
Maintenance
4 MAINTENANCE
Chapter 4 contains all the details which are needed for carrying out the necessary
maintenance procedures. If faults occur or a repair is needed which is not dealt with in
this chapter, contact Air Techniques Technical Support immediately.
Warning! In the case of danger, separate the machine from the mains by placing the Main
power / pressure switch to “O” - “OFF” position.
4.1 Maintenance, Cleaning
For the proper and safe function of the product, regular cleaning and rotational main-
tenance is required. When faults appear or a repair is needed, inform an authorized
qualied service personnel. Before any cleaning work is carried out the product must be
switched off and separated from the mains power supply.
The product has hot surfaces. Please let the product cool down before starting any cleaning.
Clean the surfaces of the product with a dust free cloth. Take care to keep the ventilation
openings of the crankcase chamber and the cylinder head free from dust and dirt.
4.2 Maintenance
The stated maintenance intervals are guidelines for normal working conditions. If there
are extreme working conditions (e.g. long work times under full load, high ambient
temperature, very dusty atmosphere, high humidity) the maintenance intervals will
need to be shorter. When carrying out maintenance work, the product must be
disconnected from the power supply.
The product has hot surfaces. Please let the product cool down before starting any cleaning.
4.2.1 Drain condensate water from pressure tank Mechanical
Automatic condensate drainage:
Compressor types with the auto-purge installation automatically drain the condensate via
the separator.
Compressor types with a membrane dryer automatically drain the condensate via the
membrane.
Table 4-1. Maintenance Intervals
Required
Maintenance Chapter Time interval Auto-Purge Membrane Dryer
 4.2.1 Yearly X X

Membrane Filter 4.2.3 Yearly X

Membrane Bowl 4.2.4 Yearly X

Page 17Air Techniques, Inc.Air Techniques, Inc. Page 16
Maintenance
4.2.2 Changing suction lters
The suction filter (example Figure 3)
needs to be changed only once a year,
if the surrounding conditions are clean.
If the atmosphere is excessively dusty the
suction lter must be changed more often.

the lifespan of your product!
Warning! 
󰀨
pressure switch to “O” - “OFF” position.
To change the air lter, proceed as follows:
1. Turn the lter housing (1) clockwise. The
bayonet lock opens and the lter can
be pulled off.
2. Exchange the air lter insert.
3. Turn the lter housing counterclockwise
until the bayonet lock is closed again
Attention! 
with petrol or oil
4.2.3 Check safety valve function
The safety valve (see Figure 4) is set in the
factory at the tank pressure, tested and lead
sealed according to the current regulations.
Under no circumstance should the seal be
removed or the safety valve be reset. Any
tampering of the seal will invalidate all liability.
The safety valve is to be function tested
semi-annually. With working pressure in the
tank, turn the valve lifter (1) counterclockwise
until blown off compressed air is heard. Turn
the valve lter again in a clockwise direction
until it is closed.
Figure 3. Inlet Filter
Figure 4. Safety Valve 1 Knob
Figure 5. Replace Sintered Filter

Page 19Air Techniques, Inc.Air Techniques, Inc. Page 18
Maintenance
4.3 Repairs
If the necessary spare parts are not available, the compressor station must be sent to the
manufacturer for repair.
Attention!
compressor station must be sent to the manufacturer for repair for any related issues.
Attention! Only use the spare parts and accessories permitted by the manufacturer. The
use of spare parts and accessories other than the ones stated in the manual could cause

Attention! Before starting repair work, the compressor station must be separated from the
power supply and all lines must be depressurized. Remove power by placing the Main power
/ pressure switch to “O” - “OFF” position.
Attention! 
more often than once a year.
Always dispose of the removed filter in accordance with local codes.
Filter Replacement - Yearly
Refer to Appendix 3: Spare Parts for the location of filters to be replaced using the
preventive maintenance kit for the specific AIRSTAR ECO model listed by Table 4-2.
Replace the filters and associated O-rings in accordance with the instructions provided
with the kit.
Table 4-2. D-Unit Preventative Maintenance Kits
AirStar ECO Model ASE121D &
ASE122D
ASE220D &
ASE250D ASE450D ASE600D
Kit Part No 84701 84702 84703 84704
Component Part No. Qty Qty Qty Qty

Element  1 2 4 6
Bottom Membrane Filter 87367 1 1 1 1
Bottom Membrane Filter
Bowl 87362 1 1 1 1
Filter Bowl O-ring 85529 1 1 1 1
87362
87367

See Table for Kit
Quantities
85529
Table 4-3. A-Unit Preventative Maintenance Kits
AirStar ECO Model ASE121A &
ASE122A
ASE220A &
ASE250A ASE450A ASE600A
Kit Part No 84711 84712 84713 84714
Component Part No. Qty Qty Qty Qty

Element  1 2 4 6

See Table for Kit
Quantities

Page 19Air Techniques, Inc.Air Techniques, Inc. Page 18
Shutdown and Disposal
5 SHUTDOWN and DISPOSAL
If the product is not in operation over a long period, it is recommended to drain off the
condensation from the pressure receiver. This step only applies to D-Units, as the auto
purge feature on A-Units removes water as it is built up. To do so, pressurize the receiver
until the cut-out pressure is achieved. Thereafter, open the drain plug until condensation
stops leaking. Afterwards, remove power by placing the Main power / pressure switch to the
“O” - “OFF” position. Close the condensation drainage, depressurize the machine and
pressure hoses.
The disposal has to be carried out in an appropriate way. The national laws and stipulations
have to be followed. For further questions, please contact Air Techniques.
Maintenance
Table 4-4. Replacement Parts List
Description Part No.
Intake Filter* 
Intake Filter Element* 
 87367
 
 84721
 84722
 84724
 84726

Table 4-5. Preventive Maintenance Kits
AirStar ECO Model Kit Part No.
ASE121D & ASE122D 84701
ASE220D & ASE250D 84702
ASE450D 84703
ASE600D 84704
ASE121D & ASE122A 84711
ASE220D & ASE250A 84712
ASE450A 84713
ASE600A 84714

Page 21Air Techniques, Inc.Air Techniques, Inc. Page 20
Appendix 1: Technical Data
See type plate of the compressors or stations. Details as per documentation attached to the
shipment.
Advice: 
expansion tank
Since our products are subject to a process of continuous improvement, the technical spec-
ication may have changed. If you propose to base your planning on these Directions for
Use, please contact us beforehand for details of current data and dimensions.
Appendix 1