SMC Networks IDFA22E-23-A Installation manual

IDFA22E-TFK18GB-A
IDX-OM-I076
Initial issue Dec. 2004
Rev.N:Apr, 2018
PRODUCT NAME
Refrigerated Air Dryer
MODEL / Series
IDFA22E-23-A,C,K,L,R,T,V
IDFA37E-23- A,C,K,L,R,T,V
IDFA55E-23- A,C,L,R,T,V
IDFA75E-23- A,C,L,R,T,V
Please read this manual prior of using the air dryer.
Kee
p
the manual readil
y
available for reference.
© 2018 SMC CORPORATION All Rights Reserved.

To Customers
Thank you for selecting SMC RefrigeratedAir Dryer.
This operation manual must be read and understood thoroughly before using the product. It provides all essential
information pertaining to safety, as well as, maximizing product efficiencyin order to extend the life of the product.
In addition, it is strongly recommended that you follow all the safety guidelines and regulations set forth by the
local government agency for proper installation and usage.
This manual explains about installation and trial operation of the product. These tasks should be performed only
byindividuals with the proper training and have a good understanding of the air dryer.
There is no production amends or financial compensation due to dryers trouble.
This manual contains confidential information proprietary to SMC. It must not be reproduced or disclosed to
others, or used in anyother way, in part or in whole, except as authorized in writing by SMC.
Note: The contents of this operation manual are subjected to change without prior notice.

Table of Contents
Table of Contents - 1
Chapter i Safety Instructions
i - 1 Warning: Before Using Air Dryer.........................................................i - 1
i - 1 - 1 Hazard, Warning, and Caution Used in This Manual....................................i - 1
i - 2 Danger Classifications/Position of Hazard warning Label........i - 2
i - 2 - 1 Danger Classifications..................................................................................i - 2
i - 2 - 2 Hazard of Electricity .....................................................................................i - 3
i - 2 - 3 Hazard of Hot Surface..................................................................................i - 3
i - 2 - 4 Hazard of Rotating Fan Motor......................................................................i - 3
i - 2 - 5 Danger of CompressedAir Circuit................................................................i - 3
i - 2 - 6 Positions of Hazard Warning Label...............................................................i - 4
i - 2 - 7 Hazard of Refrigerant...................................................................................i - 5
i - 2 - 8 Cautions about Usage..................................................................................i - 6
i - 2 - 9 Other Label ..................................................................................................i - 6
i - 3 Disposal........................................................................................................i - 7
i - 4 Limited warranty and Disclaimer / Compliance Requirements.........i - 8
Chapter 1Parts Name and Functions
1 - 1 Parts Names and Functions................................................................ 1 - 1
Chapter 2Transportation / Installation
2 - 1 Transportation.......................................................................................... 2 - 1
2 - 2 Installation.................................................................................................. 2 - 2
2 - 2 - 1 Location ..................................................................................................... 2 - 2
2 - 2 - 2 Anchorage.................................................................................................. 2 - 3
2 - 2 - 3 Air piping.................................................................................................... 2 - 3
2 - 2 - 4 Drain Tube.................................................................................................. 2 - 3
2 - 2 - 5 Electric Wiring............................................................................................ 2 - 4
2 - 3 Cautions for Reinstallation.................................................................. 2 - 5
Chapter 3Operation / Shutdown
3 - 1 Check points before operation.......................................................... 3 - 1
3 - 2 Operation.................................................................................................... 3 - 1
3 - 3 Shutdown................................................................................................... 3 - 2
3 - 4 Cautions about restart........................................................................... 3 - 2
3 - 5 Check points before restart................................................................. 3 - 2
3 - 6 Precautions for long-term non-operation...................................... 3 - 2
Chapter 4Maintenance
4 - 1 Daily inspection....................................................................................... 4 - 1
4 - 2 Periodical maintenance........................................................................ 4 - 1
4 - 2 - 1 Cleaning of ventilation grille (suction grille)................................................. 4 - 1
4 - 2 - 2 Service parts.............................................................................................. 4 - 1
4 - 2 - 3 Cleaning of the case assembly................................................................... 4 - 1
Chapter 5Troubleshooting
5 - 1 Cause and countermeasure of errors............................................. 5 - 1
5 - 2 How to reset the thermal relay and high pressure switch ...... 5 - 3
Table of Contents

Table of Contents
Table of Contents - 2
Chapter 6 References
6 - 1 Specifications........................................................................................... 6 - 1
6 - 2 Refrigerant with GWP reference ....................................................... 6 - 1
6 - 3 Dimensions................................................................................................ 6 - 2
6 - 4 Electrical Circuit ...................................................................................... 6 - 3
6 - 5 Compressed Air and Refrigerant Circuit / Operation Principles.....6 - 4
Chapter 7 Option Specification A
7 - 1 Safety instructions.................................................................................. 7 - 1
7 - 2 Specifications........................................................................................... 7 - 1
7 - 3 Air piping.................................................................................................... 7 - 1
7 - 4 Air flow capacity...................................................................................... 7 - 1
7 - 5 CompressedAir and RefrigerantCircuit/ OperationPrinciples... 7 - 2
Chapter 8 Option Specification C
8 - 1 Safety instructions.................................................................................. 8 - 1
8 - 2 Precautions for the installation and handlingof the product...... 8 - 1
8 - 3 Specifications........................................................................................... 8 - 1
Chapter 9 Option Specification K
9 - 1 Safety instructions.................................................................................. 9 - 1
9 - 2 Specifications........................................................................................... 9 - 2
Chapter 10 Option Specification L
10 - 1 Safety instructions................................................................................ 10 - 1
10 - 2 Specifications......................................................................................... 10 - 1
10 - 3 Maintenance............................................................................................ 10 - 2
Chapter 11 Option Specification R
11 - 1 Safety instructions.................................................................................11 - 1
11 - 2 Specifications of GFCI .........................................................................11 - 1
11 - 3 How to connect the power supply...................................................11 - 2
11 - 4 Cautions for handling the GFCI........................................................11 - 2
11 - 5 Electrical Circuit.....................................................................................11 - 2
Chapter 12 Specification for Option T
12 - 1 Safety instructions................................................................................ 12 - 1
12 - 2 Specifications......................................................................................... 12 - 1
12 - 3 Remote operation................................................................................. 12 - 1
12 - 4 How to connect the power supply and signal cable................ 12 - 2
12 - 5 How to re-start the operation............................................................ 12 - 2
12 - 6 Electric circuit......................................................................................... 12 - 3
Chapter 13 Specification for Option V
13 - 1 Safety instructions................................................................................ 13 - 1
13 - 2 Specifications......................................................................................... 13 - 2
13 - 3 How to perform maintenance........................................................... 13 - 3
13 - 4 Electric circuit.......................................................................................... 13 - 3
Chapter 14 Service Record
14 - 1 Service Record....................................................................................... 14 - 1

Air Dryer i Safety Instructions
iSafety Instructions
i- 1
IDX-OM-I076
IDFA Series
iSafety Instructions
Be sure to read and comprehend important cautionary
notifications in this operation manual before use
i-1 Warning: Before Using Air Dryer
In this chapter, the stated contents are especially about safety.
This Air Dryer is installed downstream of the air compressor to remove moisture. The manufacturer is not
responsible for any misuses or misapplications.
This air dryer operates with high voltage and hot surfaces during operation. In addition, this air dryer
has high speed rotating fan and motor, which can cause serious injury upon accidental contact. It is
advised that you contact the factory or SMC authorized dealer for spare parts or other servicing needs.
We strongly recommend that any one who is working with this air dryer need to read and understand the
instructions in this manual beforehand. Often, it’s necessary for the people involved, to receive training
in order to address the issues of safety and proper application.
When short period power shortage (including instantly recovered shortage) is recovered, it may take a
longer starting period than usual starting or may not start due to the protective devices.
In this case, turn off the Switch with lamp on dryer panel and wait 3 minutes. After this step, turn on the
switch to restart. When the cover panel of this unit is open, the Switch with lamp must be in the off
position, because dryer may start itself when the power supply is recovered.
Connections to a power source where the product is exposed to transient stresses exceeding
overvoltage category II (as defined in IEC60664-1).
Only connect to TN-S power distribution systems with N conductively connected to PE.
i-1-1 Hazard, Warning, and Caution Used in This Manual
This product is designed with the first priority on safety. However, there are some inherent risks
that cannot be eliminated. This manual classifies these risks into the following three categories
according to the severity: DANGER, WARNING and CAUTION. Read these statements carefully
and thoroughly understand them before operating or performing maintenance on the unit.
DANGER
“DANGER”indicates that there is an imminent hazard that will cause serious
injury or death if not avoided.
Do not operate the product without the cover panel.
WARNING
“WARNING”indicates that there is a hazard that may cause serious injury or
death if not avoided.
CAUTION
“CAUTION”indicates that there is a hazard that may cause minor injury.

Air Dryer i Safety Instructions
i-2 Danger Classifications & Position of Hazard warning Labels
i- 2
IDFA Series
IDX-OM-I076
i-2 Danger Classifications & Position of Hazard warning Labels
To help you recognize the hazards, the unit utilizes special graphics to indicate different hazards. Confirm the
contents of the hazards and the location of the labels before operation.
Warning
- Only properly trained, qualified personnel are allowed to perform tasks such as:
Operation, installation, relocation of product and maintenance works.
- Should any problem occurs, address it according to instruction in this manual.
- Identify problems following the guidelines in Chapter 5 for Troubleshooting before
proceed with maintenance works.
- In the event of any problems the product should not be turned on. When the product
fails or a fault occurs, shutdown immediately, and contact for service.
i-2-1 Danger Classifications
Specific danger classifications of this product are as follows.
Hazard of Electricity
Since this product operates with high voltage, there is the danger of electric
shock. This special symbol is used, along with key words: “CAUTION”, “WARNING”
or “DANGER”, on the product and in this manual.
Hazard of Hot Surface
Since this product becomes hot while running, there is the danger of burn injury.
This special symbol is used, along with key words: “CAUTION”,“WARNING” or
“DANGER”, on the product and in this manual.
Hazard of Rotating Object
Since this product has parts that rotate at high speed while running, there is the
danger of bodily injury. This special symbol is used, along with key words: “CAUTION”,
“WARNING” or “DANGER”, on the product and in this manual.

Air Dryer i Safety Instructions
i-2 Danger Classifications & Position of Hazard warning Labels
i- 3
IDFA Series
IDX-OM-I076
i-2-2 Hazard of Electricity
Warning
Inside of this product, there is a power-supplying section with high voltage separated
by the cover panel. Do not operate the product with the cover panel off.
i-2-3 Hazard of Hot Surface
Warning
Since this product has parts that become hot during operation, there is the danger of
burn-associated injuries. These parts remain hot even after power is off. Wait until the
unit has cooled down before touching.
i-2-4 Hazard of Rotating Fan Motor
Warning
Since this product has parts that rotate during operation, there is the danger of injury
resulting from direct contact. The fan and rotor will start/stop automatically. Thus, do
not work on them when power is on.
i-2-5 Danger of Compressed Air Circuit
Warning
Before replacing or cleaning parts, be sure to relief the pressure remained inside of the
product until the gauge indicates “0”. High pressure can propel object at high velocity
and cause injury.

Air Dryer i Safety Instructions
i-2 Danger Classifications & Position of Hazard warning Labels
i- 4
IDFA Series
IDX-OM-I076
i-2-6 Positions of Danger Warning Label
Warning
- Read with caution and pay attention to the notations of danger warning labels.
- Do not remove or modify danger warning labels.
- Confirm the positions of danger warning labels.
Front
WARNING 警告
!
1 Remove panels for maintenance only.
2 Never insert anything into product to ensure
safety.
3 Cut power prior to maintenance to prevent
electric shock.
4 Settle product to room temp.before main-
tenance toprevent burn or frostbite.
5 Ensure zero air pressure before replacing parts.
1 点検以外はﾊﾟﾈﾙを取り外さないこと。
2 回転物があるので指、棒状の物を差し
込まないこと。
3 感電の恐れがあるので、点検の前には電源を
切ること。
4 火傷の恐れがあるので、点検の前には装置を
常温にすること。
5 部品交換の前には必ず、空気圧力を"0"に
すること。
!

Air Dryer i Safety Instructions
i-2 Danger Classifications & Position of Hazard warning Labels
i- 5
IDFA Series
IDX-OM-I076
Front
i-2-7 Hazard of Refrigerant
Caution
- This product uses Fluorocarbon (HFC) as a refrigerant.
- It is strictly forbidden to emit Fluorocarbon into the atmosphere. Before you repair the
refrigerant circuit, you should collect the refrigerant with proper evacuation system.
The collected refrigerant should be properly recycled by qualified agency. Only
personnel with proper credentials are allowed to handle refrigerant.
- Only properly trained qualified personnel are allowed to remove the cover panel of the
product.
- The quantity and the type of Fluorocarbon are mentioned on the specification label.
See Page i - 6.

Air Dryer i Safety Instructions
i-2 Danger Classifications & Position of Hazard warning Labels
i- 6
IDFA Series
IDX-OM-I076
i-2-8 Cautions about Usage
Warning
Please follow the instructions on the warning labels. Do not remove or deface
warning labels, and confirm the location of all warning labels.
i-2-9 Other Label
Front
Front
CAUTION 注意
!
1 Read manual before operation.
2 Ensure vantilation and maintenance
space.
3 Keep water away from the product.
4 Secure In / Out connector with spanner
during piping.
5 Wait 3 minutes before restart.
6 Ensure Running Condition / Evaporating
Temp. in green zone.
1 ご使用前に必ず取扱説明書を読んでください。
2 通風、メンテナンススペースを確保して
ください。
3 雨や水滴がかからないようにしてください。
4 ＩＮ／ＯＵＴポートをスパナで固定して
配管してください。
5 再起動は運転停止３分後に行ってください。
6 ＲＵＮＮＩＮＧ ＣＯＮＤＩＴＩＯＮ・蒸発温度計は
グリーン帯で使用してください。
Specification Label

Air Dryer i Safety Instructions
i-3 Disposal
i - 7
IDX-OM-I076
IDFA Series
i-3 Disposal
When you dispose of the product, you should collect the refrigerant and the compressor oil inside the
refrigerant circuit.
Caution
This product contains Fluorocarbon HFC.
It is strictly forbidden to emit Fluorocarbon into the atmosphere. Before you repair the
refrigerant circuit, you should collect the refrigerant with proper evacuation system.
The collected refrigerant should be properly recycled by qualified agency. Only
personnel with proper credentials are allowed to handle refrigerant.
Only properly trained and qualified personnel are allowed to remove the cover panel of
the product.
The quantity and the type of Fluorocarbon are mentioned on the specification label.
See Page i - 6.
Caution
Dispose of the refrigerant and compressor oil according to the regulation of local
government.
Only personnel with proper credentials are allowed to collect refrigerant and
compressor oil.
Only properly trained and qualified personnel are allowed to remove the cover panel of
the product.
For any questions, please contact an SMC authorized dealers.

Air Dryer i Safety Instructions
i-4 Limited warranty and Disclaimer / Compliance Requirements
i - 8
IDFA Series
IDX-OM-I076
i-4 Limited warranty and Disclaimer / Compliance Requirements
The product used subject to the following “Limited warranty and Disclaimer“and “Compliance
Requirements.
Read and accept them before using the product.
Limited warranty and Disclaimer
1. The warranty period of the product is 1 year in service or 1.5 years after the product is delivered.
Also, the product may have specified durability, running distance or replacement parts. Please consult
your nearest sales branch.
2. For any failure or damage reported within the warranty period which is clearly our responsibility, a
replacement product or necessary parts will be provided.
This limited warranty applies only to our product independently, and not to any other damage incurred
due to the failure of the product.
3. Prior to using SMC products, please read and understand the warranty terms and disclaimers noted in
the specified catalog for the particular products.
Compliance Requirements
1. The use of SMC products with production equipment for the manufacture of weapons of mass
destruction (WMD) or other weapon is strictly prohibited.
2. The exports of SMC products or technology from one country to another are govemed by the relevant
security laws and regulation of the countries involved in the transaction. Prior to the shipment of a SMC
product of a SMC product to another country, assure that all local rules goveming that export are known
and followed.
Caution
The Product is provided use in manufacturing industries.
The product herein described is basically provided for peaceful use in manufacturing industries.
If considering using the product in other industries, consult SMC beforehand and exchange
specifications or a contact if necessary.
If anything is unclear, contact your nearest sales branch.

Air Dryer 1 Name and Functions Parts
1-1 Parts Name and Functions
1 - 1
IDX-OM-I076
IDFA Series
1 Parts Name and Functions
1-1 Parts Name and Functions
IDFA22E,37E,55E,75E
Front
Switch with Lamp
(ON /OFF Switch)
The lamp is continuously ON
during normal operation.
Evaporation Thermometer
Indicates the evaporating
temperature of refrigerant on
low-pressure side.
During normal operation, the
indicator remains in the
green zone.
Ventilation Grille
(Exhaust)
Hot air will be
exhausted by
condenser fan. Do not
block these vents.
Panel Lock (x 2)
Another one is on opposite side.
Drain Tube
Discharges drain.
Auto Drain
Check if drained correctly
once a day.
Compressed Air (IN)
Compressed Air (OUT)
Ball Valve
Front Panel
You can see the terminal block
when you remove this cover.
Connect the power cable through
the rubber grommet.
L
N
PE
（）
Customer Connection Side
Terminal Connecting Screw: M3
Applicable electrical wire:
1.25mm2 or more
(Width 6.5mm and below)
Thermal Relay
(Only for IDFA55E and IDFA75E)
(The thermal relay is placed at the
inside of a front panel.) Refer to page
5-3 to reset the thermal relay.
High Pressure Switch
(Only for IDFA55E and IDFA75E)
(The high pressure switch is placed at
the inside of a front panel.) Refer to page
5-3 to reset the high pressure switch.

Air Dryer 1 Name and Functions Parts
1-1 Parts Name and Functions
1 - 2
IDX-OM-I076
IDFA Series
Front
Rubber Grommet
Power cord outlet
Panel Lock (x 2)
Another one is on
opposite side.
Ventilation Grille (Suction)
Ambient air will be sucked by
condenser fan. Do not block
these vents.
Panel Lock (x 2)
(Only for IDFA75E)
Another one is on opposite side.

Air Dryer 2 Transportation / Installation
2-1 Transportation
2 - 1
IDX-OM-I076
IDFA Series
2 Transportation/Installation
Warning
Use the product in the right way. During Installation, operation, maintenance, and check,
you should be careful in keeping the safety of human body.
Caution
Transportation, installation, and maintenance including dangerous work must be done by
a personnel who has enough knowledge and experience about the product and the
sysytem.
2-1 Transportation
When you transport the product, you should follow the instructions below:
You should lift the product from the base surface with careful attention to prevent tipping over.
Do not lay the product sideways, or you will damage the product.
Do not suspend the product from the ceiling or hang from the wall.
Do not transport the product with any part such as an air filter mounted on the fittings at the air inlet or
outlet port of the product. If it is unavoidable to transport the product with such a part mounted, support
the mounted part with a bracket to prevent the product from being affected by vibration during
transportation.
Warning
This product is heavy.
Each model weights about 50kg or more. More than one person is required to move it, a forklift is
necessary.

Air Dryer 2 Transportation / Installation
2-2 Installation
2 - 2
IDX-OM-I076
IDFA Series
2-2 Installation
2-2-1 Location
The product should not be used or stored in the circumstances as follows. Those
circumstances will cause not only malfunction but also failures.
Environment where the product is exposed to
rainwater, moisture vapor, salty water, oil and
so on.
Locations where dust or particles are.
Locations where inflammable or explosive gas
are.
Locations where corrosive gas, solvent,
combustible gas are.
Locations that receive direct sunlight or where
radiant heat is generated.
Locations where ambient temperature is
beyond following range:
On-stream: 2 to 40oC
Storage: 0 to 50oC (when there is no drain
water inside of the piping)
Locations where temperature changes rapidly.
Locations where strong electromagnetic noise
is generated (locations where electromagnetic
field, strong magnetic field, surge is generated)
Circumstances where static electricity is
produced or discharged through the body of the
product.
Locations where strong high frequency wave is
generated.
Locations where danger of thunder is apparent.
Locations by loading on vehicles, marine
vessels, and so on.
Locations whose altitude is higher than 2,000
meters.
Circumstances where strong vibration or impact
are transmitted.
Circumstances where too much force and
weight are put on the body of the product that
causes it to deform.
Circumstances where enough spaces cannot
be taken to do maintenance (in the plant where
the product is operated).
Spaces needed for maintenance
Front : 600 mm
Rear : 600 mm
Top : 600 mm
Right : 600 mm
Left : 600 mm
Locations the ventilation grille of the product
can be blocked.
Place where rejection style air of air
compressor or other driers (hot wind) is inhaled.
Condition which has sudden pressure/flow rate
changes.
2-2-2 Anchorage
The air dryer should be installed on a vibration-free, stable, horizontal flat surface.
Refer to “Chapter6 6-3 Dimensions” for the dimensions.
This model should be installed using anchor bolts (not included) to prevent shifting during a potential
earthquake (Recommended size of anchor bolt: M12 x 20L 4pieces).
2-2-3 Air piping
Connection to the inlet and outlet of compressed air should be made removable by using union and
so on.
Pressing the hexagonal fitting with screw wrench and so on, connect the air piping fittings to the
body.
When mounting any part such as an air filter on the fitting at the compressed air inlet or outlet port,
support the part to prevent excessive force from being applied to the product.
Be careful not to let the vibration of the air compressor transmit.

2 Transportation / Installation
2-2 Installation
2 - 2
IDFA Series
If the temperature of compressed air on the inlet side is higher than 50oC, place an aftercooler after
the air compressor. Or, make the temperature of the place where the air compressor is installed
lower than 50oC.
If the air supply makes high pressure fluctuation (pulsation), take any countermeasures such as installing air
tank.
Flash the piping sufficiently in order to avoid any foreign substances such as dust, sealing tape, liquid
gasket, etc. when piping before piping connection. Foreign substances in the piping can cause
cooling failure or drainage failure.
Use pipes and fittings that have enough endurance against the operating pressure and temperature.
And connect it firmly to prevent air leakage.
Provide bypass piping to make it possible to do maintenance without stopping the air compressor.
2-2-4 Drain Tube
A polyurethane tube (10mm) O.D. is attached to the auto drain. The end of the tube is open to
atmosphere to let drain flow through the tube into a collector or drain pipe.
The compressed air is used to push out the drain periodically. Fix the outlet end of the tube in order to
prevent whipping action during discharge.
Install the drain tube in such a way so that no drain is trapped.
During installation, make sure the dryer does not sit on the drain tube which is at the bottom of the unit. Be
careful to avoid the dryer from crushing the tube during installation.
Warning
・To handle drain discharge, follow the safety guidelines such as wearing protective
goggles, apron, and gloves.
・In cases where oil is mixed in the wastewater discharged from the auto drain, the liquid
would be considered as toxic waste and treatment is necessary in accordance with local
regulations.
We recommend installing the bypass piping
set that is available separately as an
accessory. The part number of bypass
piping is shown in the Catalogue.
Compressed Air (OUT)
Compressed Air (IN)
Valve (IN)
Valve (OUT)
Union Joint
Union Joint
Bypass valve

2 Transportation / Installation
2-2 Installation
2 - 4
IDFA Series
2-2-5 Electric Wiring
Warning
Only properly trained and qualified personnel are allowed to perform wiring
work.
Before wiring, you must disconnect the power. Do not work under any
energized conditions.
Supply power from a stable source that is free from the effect of surge.
Ensure that a Ground Fault Circuit Interrupter (GFCI) with appropriate capacity
for earth leakage and load is used in the power supply of the product to prevent
electrical shock and burnout of the compressor motor. See “6-1 List of
specifications” for details.
Supply power of the product should meet the specifications on page 6-1.
The product must be grounded for safety.
Do not connect ground wire to a water pipe, a gas pipe, or a lightening rod.
Take care not to overload the power supply by connecting multiple units to one
supply.
The customer must prepare for countermeasures of the power failure.
The dryer may not start normally at the moment of power failure.
Circuit breaker must be properly selected to meet safety standard of local
regulations.
Always be sure to connect the protective conductor first, disconnect it last in
respect to the other connections.
Be sure that the protective conductor has some additional length in respect to
the live conductors, so that it is not subject to mechanical stresses.
Be sure to install the circuit breaker correctly so that it disconnects all live
conductors and so that the operating handle can be easily accessible.
Specification of power cable
Prepare following power cable.
Power cable: 1.25mm2(16AWG), Three-cores (including the ground cable), External diameter: about 8
to 12mm.
Additional length of about 0.1m (4in) is needed to wire inside of the product.
Length of the power cable
The maximum length of the power cable should be no more than 98ft (30m).
Connecting to the power supply
Connect the power cable and the ground to the terminal block. Make sure to use the ring terminals for
M3 screws.
Applicable crimped terminal: 1.25-3 (Width: 6.5mm and below)
Wiring procedure
Remove the terminal block cover or the rear panel.
Insert the cord through the rubber grommet and connect it to the terminal block (refer to the label on
the terminal block). M3 screw tightening torque: 0.6 to 1Nm
During wiring work, do not touch other sections except terminal block.
Re-attach the cover or real panel after wiring is done.

2 Transportation / Installation
2-3 Cautions for Reinstallation
2 - 5
IDFA Series
2-3 Cautions for Reinstallation
Caution
Only properly trained, qualified personnel are allowed to perform reinstallation.
If the product is moved and reinstalled in another place after some trial operations, the following instructions
must be followed as well as procedures in Chapter 2.
Removing the power cable
Disconnect the power source before removing the power cable.
Warning
・Only properly trained, qualified personnel are allowed to perform wiring.
・Disconnect the power source before wiring. Do not work under energized
condition
Disconnecting air pipes
Warning
・Only properly trained, qualified personnel are allowed to perform piping works.
・Separate the compressor from the product before disconnecting the air pipe.
・Do not disconnect any piping when there is residual air pressure inside of the pipe.
Remove the seal tape completely after removing the piping. Loose seal tape can clog up the system.
Releasing residual pressure
・Bypass valve should open even after the dryer has been removed.
・Close the compressed air inlet and outlet valve.
・Unscrew the front panel screws (in 2 places) and remove the front panel.
・Open the auto drain residual pressure release valve to release air pressure inside the product. Refer to the
Figure of right.

Air Dryer 3 Operation / Shutdown
3-1 Check points before operation
3- 1
IDX-OM-I076
IDFA Series
3 Operation/Shutdown
Caution
Only properly trained and qualified personnel are allowed to perform operation/shutdown
of the product.
3-1 Check points before operation
Before trial run, check the following points:
- Installed Conditions:
By visual inspection check that the product is level.
Make sure the product is fixed down with anchor bolts.
Do not place heavy objects on the top of the product.
Ensure the piping does not apply load to the unit.
- Power cord, and the ground should be connected firmly.
- Drain tube should be connected correctly.
- Make sure the piping for compressed air is connected correctly.
- Make sure the ball valve located next to the auto drain opened.
3-2 Operation
Start operation according to the procedure below.
- Turn on the breaker of the main power supply. Then, turn ON the Switch with lamp.
- The lamp will light up. Few minutes later, the cooling fan will rotate and hot air will be exhausted from the
ventilation grille.
Location of the ventilation grille: Right Side
- Open the IN/OUT side valve slowly. Make sure the bypass valve is completely closed. Confirm there are
no air leaks.
- Depending on the condition of compressed air or ambient temperature, the cooling fan sometimes
alternates between start/stop at the beginning. Then, the refrigerant compressor will start and the
pointer of the evaporating temperature will indicate in the green zone. If the pointer indicates higher than
the green zone, refer to “Chapter 5 Troubleshooting.”
- After running for a while, moisture will be discharging from the drain tube automatically.
Caution
Avoid frequent On/Off operation, which may cause problems.
The auto drain used for the product has a structure that closes the valve with air
pressure higher than 0.15MPa. Therefore, until the pressure increase, air will be emitting
from the drain outlet at the start of opening the “IN”valve. Keep in mind that sometimes
the pressure cannot increase due to under-sized air compressor.
Avoid using this product under the condition which has sudden pressure/flow rate
changes. Otherwise, drain (condensed water) may flow out to the secondary piping.