Anest Iwata SLE-2 User manual

INSTRUCTION MANUAL
OIL-FREE SCROLL COMPRESSOR
SLE-2/2H
SLE-3/3H
SLE-5/5H
Thank you for purchasing our oil-free scroll air compressor.
●Before operation, be sure to read this instruction manual thoroughly for safe
and efficient use for a long operating lifetime.
●After reading it, store in a convenient place for immediate and future
reading.
Before use, be sure to fill in the blank spaces below for future repair and after service.
MODEL
SERIAL No.
Purchased from
Date of purchase
Date of use

1
Important information and Safety precautions
▪Important information
Read all important information and safety precautions before use. The operator shall be fully knowledgeable of
the requirements stated within this instruction manual, including important warnings, cautions and operation.
Read manual before performing any maintenance.
•Indications of warnings and cautions
WARNING
May cause injury or death.
CAUTION
May result in injury or property damage.
•Examples of warnings and cautions
May cause electric shock.
Do not touch.
Must be grounded.
＊Supplier is not responsible for any injuries or damages caused by disregard of warnings, operating instruction
specifications or maintenance schedules.
l@;
Indicates important notices you must observe.
They are helpful to achieve top performance and functions of the equipment.
Keep this booklet in an appropriate place for immediate reference.
Important

2
Important information and Safety precautions
▪Safety precautions
WARNING
Install in a safe area.
To prevent a fire or explosion, install in an area free of flammable gases or organic solvents.
Never install outdoors.
To prevent fire or electric shock, never install outdoors.
Turn off the main electric source.
To prevent electric shock or serious injury, always turn off the main electric source before
inspecting or wiring the unit.
Ask a qualified electrician.
Only a qualified electrician should perform maintenance on the unit.
Be sure to ground.
Unit must be grounded to prevent electric shock.
Never use to compress anything other than air.
Unit must only be used to compress air.
Do not use with respiratory equipment, which
could cause serious injury or death.

3
Important information and Safety precautions
WARNING
Not for use as life support.
Serious bodily injury and/or death may occur. Unit must only be used to compress air.
Do not touch.
Keep hands and fingers away from fans, pulleys and belts while the power is on.
Serious injury, including entanglement of fingers or hands can occur.
Release pressure.
Release pressure from unit before conducting maintenance and/or inspection.
Failure to do so may cause serious injury.
Conduct maintenance and inspection.
Conduct maintenance and inspection according to this manual to prevent unit failure.

4
Important information and Safety precautions
CAUTION
Use at ambient temperatures of 36°F to 104°F.
Drain will freeze at less than 36°F and will cause unit failure.
Using over 104°F will cause a shorter lifespan or unit damage.
Use in an area free of dirt and dust.
Failure to do so may result in equipment failure.
Use in an area free of corrosive gas.
Failure to do so may result in equipment failure.
Only qualified personnel should perform repairs
to prevent electric shock or fire.
Keep Away.
Keep away from the compressor while it is operating, and allow it to cool before servicing.
Failure to do so may result in serious burns and or bodily harm.
Never alter the compressor
Fire and or electric shock may occur if unit is altered and warranty will be void.
Use genuine parts
Be sure to use only genuine parts during maintenance.
Failure to do so may result in equipment failure.

5
Contents
Important information and Safety precautions
■Important information ----------------------------------
1
■Safety precautions ---------------------------------------
2
■Contents ----------------------------------------------------
5
Before use
■Inspect the product -------------------------------------
6
Installation
■Precaution about installation ----------------------------
7
■Installation space ----------------------------------------
8
■Ventilation -------------------------------------------------
8
■Installation for base cover -----------------------------
8
■Piping -------------------------------------------------------
9
■Electrical wiring -------------------------------------------
10
Test operation
■Operation --------------------------------------------------
12
Problems and remedies
■Compressor -----------------------------------------------------
13
Maintenance and inspection
■Compressor maintenance standards --------------------
14
■How to carry out maintenance ----------------------------
16
Specifications
■Compressor specifications ----------------------------------
17
Appendix
■Outer dimensions ---------------------------------------------
20
■Circuit diagram ------------------------------------------------
21
Warranty
■Warranty and remain ---------------------------------------
24

6
Before use
▪Inspect the product
•Inspect the product to be sure you have the model you ordered.
•Check that there is no deformity or damage which occurred during transportation. Any shipping damage must be
immediately filed with the freight carrier.
•Check that the following accessories are included.
oCompressor instruction manual
oPump instruction manual
oAuto drainer instruction manual
oBase cover x 2
oRubber mat x 4
oBall valve
-
SL; Scroll 2; 2HP 208; 208V
3; 3HP 230; 230V
E; Enclosure 5; 5HP 460; 460V
S; Single phase
T; Three phase
N/A;
115psi (Maximum pressure)
H;
145psi (Maximum pressure)
SL
E
5
-
T
230

7
Installation
▪Precautions about installation
WARNING!
Do not use in an area which is exposed to rain, steam or high humidity.
High humidity can cause electric shock or fire.
Do not install in an area with corrosive gas (ammonia, acid, salinity, ozone gas and sulfur dioxide)
preventing a shorter lifespan of the unit.
WARNING!
To prevent a fire or explosion, install in an area free of flammable gases or organic solvents.
Ambient temperature
Use at ambient temperatures of 36°F to 104°F.
Using at less than 36°F will cause unit failure or freezing.
CAUTION!
Install this product on a level floor to prevent vibration and noise, causing damage to the unit.
CAUTION!
Install in an area which is free of dust. Dust can cause increased temperature and wear,
resulting in a shorter lifespan and/or unit failure.

8
Installation
▪Installation space
Secure the space around the compressor for safe inspection and maintenance.
Installation space
(inch)
Above
24
Front side
40
Other Sides
20
▪Ventilation
When using in an enclosed closed room, install a fan for ventilation.
Model
British Thermal Unit
(BTU)
SLE-2
SLE-2H
5120
SLE-3
SLE-3H
7680
SLE-5
SLE-5H
12800
▪Installation for base cover
Please install the base covers by using the tapping screws at the base as shown below.

9
Installation
▪
▪Piping
(1) Take pressure loss into consideration and decide the piping diameter of the exhaust piping.
(2) Connect the outlet of the compressor and piping by using a rubber hose and flexible tube.
Direct connection to a steel pipe can transfer vibration of the compressor to the pipe causing issues for the
print board of the compressor. Only use a rubber hose for the oil-free compressor.
(3) When there is a riser or concave section in the piping, be sure to install a drain valve at the low end.
Install a drain valve at the low end of the main piping as well.

10
Installation
▪Electrical wiring
❖Precautions about wiring
Turn off main electric source.
Be sure to turn off main electric source before inspection or wiring job.
If not, it can cause electric shock or serious bodily injury.
Ask qualified electrician.
Ask qualified electrician to perform electric wiring job.
If not, it can cause electric shock or fire.
Be careful about wiring.
Do not use cable of less than designated size.
If done, overheat of cable can cause fire.
Be sure to ground.
Be sure to do the grounding on the wiring job.
If not, it can cause electric shock or fire.
❖How to run the wire
(1) Remove the cubicle cover panel on the right side panel.
(2) Remove the lid on the right.
(3) Be sure to securely connect the electric source（L1, L2, L3）and ground to the terminal in the cubicle.

11
Installation
❖Wiring material
Use the correct size of cable and applicable breaker shown in the chart below.
208-230V, 1Phase
Model
Load specifications
Circuit protection Max Size
Motor load
each
(FLA)
Unit load
total
(FLA)
Non-time
delay fuse
(A)
Time delay
fuse
(A)
Inverse time
circuit
breaker
(A)
SLE-2/SLE-2H
(VFD starter)
13.2 - 12.0
17 - 16
40 - 40
25 - 25
35 - 30
208-230V, 3Phase
Model
Load specifications
Circuit protection Max Size
Motor load
each
(FLA)
Unit load
total
(FLA)
Non-time
delay fuse
(A)
Time delay
fuse
(A)
Inverse time
circuit
breaker
(A)
SLE-2/SLE-2H
(VFD starter)
7.5 - 6.8
10 - 9
25 - 25
15 - 15
20 - 20
SLE-3/SLE-3H
(VFD starter)
10.6 - 9.6
14 - 13
35 - 30
20 - 20
30 - 25
SLE-5
SLE-5H
16.7 - 15.2
21 - 20
60 - 50
30 - 30
45 - 40
460V, 3Phase
Model
Load specifications
Circuit protection Max Size
Motor load
each
(FLA)
Unit load
total
(FLA)
Non-time
delay fuse
(A)
Time delay
fuse
(A)
Inverse time
circuit
breaker
(A)
SLE-2
SLE-2H
3.4
5
15
15
15
SLE-3
SLE-3H
4.8
6
15
15
15
SLE-5
SLE-5H
7.6
10
25
15
20

12
Test operation
▪Operation
❖Preparation
(1) Check to be sure the air receiver piping has been firmly connected.
(2) Open the ball valve of the compressor air outlet.
❖Operation and check pressure increase
(1) Push the start button to operate the compressor.
(2) Be sure the pressure increases when the compressor starts.
CAUTI0N
If the pressure does not increase and an abnormal sound is heard during reverse rotation, stop the
compressor. Turn off the main electric source and then change two out of the three phases to get the correct
rotation.
Be sure to push the stop switch to stop the compressor and cut the leak breaker to avoid electric shock.
❖Check maximum control pressure
Operate the unit while the ball valve of the air receiver is closed.
Be sure the compressor stops at the pressure shown below.
Model
Max. pressure (psi)
SLE-2, SLE-3 and SLE-5
116
SLE-2H, SLE-3H and SLE-5H
145
❖Check minimum control pressure
When maximum pressure is reached and compressor stops, open outlet valve and gradually reduce pressure.
Check that compressor restarts at below pressures.
Model
Min. pressure (psi)
SLE-2, SLE-3 and SLE-5
96
SLE-2H, SLE-3H and SLE-5H
125
＊In case the minimum pressure is changed to 96/125 psi, the volume of the air receiver must be 1.5 times larger than
the recommendation at 86/115 psi.
❖Stop
Push the stop switch and stop the compressor.
After the test operation ends, open the stop valve of the air outlet.

13
Problems and remedies
If you have any problems, please refer to the chart below.
If the (*) marked items are difficult for you to fix, please contact the shop you purchased it from.
▪Compressor
Problems
Causes
Remedies
Compressor unit does not start
•Electric source is not ON.
•Turn on electric source
•Electric source is not connected
correctly.
•Connect it correctly
Power is at supply connection
and compressor does not start
•Over load relay has tripped
•See last entry of Troubleshooting guide
•Wrong or low voltage
•Inspect incoming power supply and unit power rating.
•Starter has failed
•Inspect, repair or replace contactor assembly *
•Pressure switch has failed
•Inspect, repair or replace pressure switch assembly *
•Motor has failed
•Inspect, repair or replace motor *
Caution is displayed
•High ambient temperature, bad
ventilation
•Improve installation environment and ventilation.
•Clogging of fins of after cooler or
intake metallic wire
•Clean
•Failure of ventilating fan
•Inspect
•Damage to intake hose
•Replace *
•Cooling passage of air end clogs.
•Inspect *
Condition is displayed.
•Low voltage
•Check electric source capacity, size of electric source
cable and change to proper one.
•Motor failure
•Inspect, repair or replace *
•Air end failure
•Disassemble, inspect or repair *
•Loosened wiring screw
•Tighten
•Pressure increases higher than
designated one.
•Readjust
•Failure of thermal relay.
•Replace *
Exhaust pressure does not
increase.
•Air leaks from air piping.
•Inspect or repair
•Reverse revolution
•Change phases.
•Failure of pressure setting
•Readjust *
•Clogged intake filter
•Clean or replace
•Failure of pressure sensor
•Replace *
Safety valve activates.
•Failure of safety valve
•Replace *
•Failure of pressure setting
•Readjust *
•Failure of pressure sensor
•Replace *
Abnormal sound
•Reverse revolution
•Check revolving direction and change phases.
•Air end failure
•Inspect, repair or replace *
•Belt slips.
•Check tension and readjust
•Motor failure
•Inspect, repair or replace *
•Cooling fan contacted
•Inspect and repair
•Loosened bolts
•Inspect and tighten

14
Maintenance and inspection
Carry out the following maintenance and inspection items according to the schedule below.
This interval is based on conditions where ambient temperature is at around 86°F.
If your location is warmer or running condition is severe, maintain at a shorter period.
During warmer conditions, shorten the period approximately 30 % from our recommendation at every 9°F.
The maintenance time differs from guarantee period.
▪Compressor maintenance standards (SLE - 2, 3 and 5)
Inspect and check operational hours or number of years, whichever comes first.
Items
Contents
Maintenance time
Remarks
Operational
hours
Daily
Every
400hrs,
Every
2 months
Every
2,500hrs,
Every
1 year
Every
5,000hrs,
Every
2 years
Every
10,000hrs
Every
4 years
Every
20,000hrs
Every
8 years
Every
30,000hrs
Every
12years
Period
Drain
Drain
air receiver
○
Replace if abnormal.
abnormal sound/
vibration
○
Ventilation fan
Smooth
rotation
○
Replace if abnormal.
Intake filter
○
●
Replace when it is dirty.
Intake metal wire
Clean
○
Clean when it is dirty.
Safety valve
Check
operation
○
Belt
Inspect,
replace
○
Initial
only
○
●☆
No looseness, no
abnormal sound
Intake hose
Nylon pipe
Inspect,
replace
○☆
Replace if there are
cracks or hardening
Magnet switch
Inspect,
replace
○☆
●☆
Motor insulation
Check
insulation
○☆
Replace if abnormal.
Motor
Inspect,
replace
●☆
Pulley
Check groove.
○☆
Replace if abnormal.
Temperature sensor
Measure
resistance
○☆
Replace if abnormal.
Pressure sensor
Check
operation
○☆
Check display figure.
Replace if abnormal.
After cooler
Clean outside
○☆
Replace if abnormal.
O rings
Replace
●☆
Check valve
Replace
●☆
Air end
seal parts,
Re-grease
Inspect,
replace
●☆
Use Iwata genuine grease.
Air end fan
FS･OS fins
Clean
○☆
Replace when it is dirty.
Air end
Replace
●☆
○Inspect, ●Replace ☆Consult with distributor who sold it to you.
Air intake filters are not covered under warranty. You may want to keep extra filters on hand.

15
Maintenance and inspection
▪Compressor maintenance standards (SLE - 2H, 3H and 5H)
Inspect and check operational hours or number of years, whichever comes first.
Items
Contents
Maintenance time
Remarks
operational hours
daily
Every
400hrs,
Every
2 months
Every
2,500hrs,
Every
1 year
Every
5,000hrs,
Every
2 years
Every
10,000hrs,
Every
4 years
Every
15,000hrs,
Every
6 years
Every
20,000hrs,
Every
8 years
period
(Drain)
Drain
air receiver
○
abnormal
sound/
vibration
○
Ventilation fan
Smooth rotation
○
Replace if
abnormal.
Intake filter
○
●
Replace when
it is dirty.
Intake metal
wire
Clean
○
Clean when it
is dirty.
Safety valve
Check operation
○
Belt
Inspect,
readjust, replace
○
Initial only
○
●☆
No looseness,
no abnormal
sound
Intake hose
Nylon pipe
Inspect, replace
○☆
Replace
if there are
cracks or
hardening
Magnet switch
Inspect, replace
○☆
●☆
Motor insulation
Check insulation
○☆
Replace
If abnormal.
Motor
Inspect, replace
●☆
Pulley
Check groove.
○☆
Replace if
abnormal.
Temperature
sensor
Measure
resistance
○☆
Replace if
abnormal.
Pressure sensor
Check operation
○☆
Check display
figure.
Replace if
abnormal.
After cooler
Clean outside
○☆
Replace if
abnormal.
O rings
Replace
●☆
Check valve
Replace
●☆
Air end
seal parts,
Re-grease
Inspect, replace
●☆
Use Iwata
genuine
grease.
Air end fan
FS･OS fins
Clean
○☆
Replace when
it is dirty.
Air end
Replace
●☆
○Inspect, ●Replace ☆Consult with distributor who sold it to you.
Air intake filters are not covered under warranty. You may want to keep extra filters on hand.

16
Maintenance and inspection
▪How to carry out maintenance
•Intake filter
Blow dust off the filter with an air gun and replace if it is dirty.
•Safety valve
Lift up the stem of the safety valve at around maximum pressure and check if air blows out.
•Belt tension
If the V belt makes a slipping sound at the startup, due to decrease of V belt tension, readjust the belt tension or
replace it.
If the belt tension is less than the figure in the chart below, adjust the belt tension again.
An exclusive tool is necessary to measure belt tension.
Ask our distributor to readjust belt tension when needed.
Model
Readjustment
standard load / Hz
Readjustment
target load / Hz
Tolerance ±5
Replacement new belt
target load / Hz
Tolerance ±5
SLE-2(H)
SLE-3(H)
SLE-5(H)
75
98
105

17
Specifications
▪Compressor specifications
•2 HP
Model
Item
SLE-2
SLE-2H
Compressor
Pump model
SL-165E
SL-1651E
Control system
Pressure switch
Discharge pressure (psi)
85 to 115
115 to 145
Air delivery (cfm)
*1 5.3
*1 4.5
Driving system
V-belt
Discharge air temperature (°F)
Intake temperature
+ less than 30
Intake temperature
+ less than 30
Air outlet
NPT 1/2” (Ball valve)
Air receiver (GAL)
7
7
Noise level
at 4.9 ft from front panel (dB A)
*2 46
Ground vibration (dB )
*3 less than 45
Motor
Operating voltage
1Phase, 208-230V, 60HZ with VFD soft starter
3Phase, 208-230V, 60Hz with VFD soft starter
3Phase, 460V, 60Hz with Magnetic starter
Output (HP)
2
Protection
Over current
Magnetic starter : Equipped （Thermal protector）
VFD soft starter : VFD Equipped
Others
Dimensions (W × L × H) (inch)
*4 22 × 24 × 42
Approx. mass (Lbs.)
260
260
Note
*1) Air delivery means average discharge air volume at 115 psi / 145 psi (maximum operating pressure) converted into
atmospheric pressure. It is not a warranted figure.
*2) Noise level is measured in an anechoic room.
*3) The ground vibration is measured at the position of 0.4 inch from compressor side. (The ground vibration changes by the
ground condition. This data is a reference value when compressor is left on a usual concrete floor.
*4) Dimensions are outer dimensions excluding extruding parts.

18
Specifications
▪Compressor specifications
•3 HP
Model
Item
SLE-3
SLE-3H
Compressor
Pump model
SL-165E
SL-1651E
Control system
Pressure switch
Discharge pressure (psi)
85 to 115
115 to 145
Air delivery (cfm)
*1 7.8
*1 6.4
Driving system
V-belt
Discharge air temperature (°F)
Intake temperature
+ less than 30
Intake temperature
+ less than 30
Air outlet
NPT 1/2” (Ball valve)
Air receiver (GAL)
7
7
Noise level
at 4.9 ft from front panel (dB A)
*2 50
Ground vibration (dB )
*3 less than 45
Motor
Operating voltage
1Phase, 208-230V, 60HZ with VFD soft starter
3Phase, 208-230V, 60Hz with VFD soft starter
1Phase, 460V, 60Hz with Magnetic starter
3Phase, 460V, 60Hz with Magnetic starter
Output (HP)
3
Protection
Over current
Magnetic starter : Equipped （Thermal protector）
VFD soft starter : VFD Equipped
Others
Dimensions (W × L × H) (inch)
*4 22 × 24 × 42
Approx. mass (Lbs.)
270
270
Note
*1) Air delivery means average discharge air volume at 115 psi / 145 psi (maximum operating pressure) converted into
atmospheric pressure. It is not a warranted figure.
*2) Noise level is measured in an anechoic room.
*3) The ground vibration is measured at the position of 0.4 inch from compressor side. (The ground vibration changes by the
ground condition. This data is a reference value when compressor is left on a usual concrete floor.
*4) Dimensions are outer dimensions excluding extruding parts.

19
Specifications
▪Compressor specifications
•5 HP
Model
Item
SLE-5
SLE-5H
Compressor
Pump model
SL-165E
SL-1651E
Control system
Pressure switch
Discharge pressure (psi)
85 to 115
115 to 145
Air delivery (cfm)
*1 14.8
*1 11.7
Driving system
V-belt
Discharge air temperature (°F)
Intake temperature
+ less than 30
Intake temperature
+ less than 30
Air outlet
NPT 1/2” (Ball valve)
Air receiver (GAL)
7
7
Noise level
at 4.9 ft from front panel (dB A)
*2 50
Ground vibration (dB )
*3 less than 45
Motor
Operating voltage
3Phase, 208-230/460V, 60Hz Magnetic Starter
Output (HP)
5
Protection
Over current
Equipped （Thermal protector）
Others
Dimensions (W × L × H) (inch)
*4 22 × 24 × 42
Approx. mass (Lbs.)
280
280
Note
*1) Air delivery means average discharge air volume at 115 psi / 145 psi (maximum operating pressure) converted into
atmospheric pressure. It is not a warranted figure.
*2) Noise level is measured in an anechoic room.
*3) The ground vibration is measured at the position of 0.4 inch from compressor side. (The ground vibration changes by the
ground condition. This data is a reference value when compressor is left on a usual concrete floor.
*4) Dimensions are outer dimensions excluding extruding parts.