Daikin AKZ8 Series User manual

Built-in breaker
model
Built-in tank
model
Different-voltage
model
CE model
Built-in heater
model
Installation
Models
Oil Cooling Unit and Accessories 4
Precautions for Installation 5
Reference for Pipe Selection 6
Electric Wiring 7
CONTENTS
1
Circulating type
Standard
model
Menu
Series
Built-in
breaker
model (–B)
CE model
(–C)
Built-in
heater
model (–H)
Built-in
tank model
(–T1, –T)
Different-
voltage
model (–E)
AKZ148
AKZ328
AKZ438
AKZ568
AKZ908
Instruction Manual
AKZ8 Series
If the air filter is clogged, the cooling performance deteriorates,
causing excess power consumption.
Clean the air filter periodically to reduce power consumption.
Thank you for purchasing DAIKIN Oil Cooling Unit (“OILCON”).
This instruction manual includes instructions for using the Oil
Cooling Unit.
To ensure proper use of this product, be sure to read through this
instruction manual before using it.
After reading this manual, keep it handy for your future reference.
Monitor Items 23
Timer Operation 24
Additional Setting Functions 25
Setting Additional Function 27
For Temperature Control Improvement 30
Alarm/Warning Output Logic 33
Alarm Settings for Optional Protection
Devices (Installed by User) 33
Handling
Before Operation
12Model Identification and Specifications
14
Part Names and Functions 15
Names and Functions of the Control Panel Parts 16
Checking Initial Operating Conditions 18
Operation Setting 19
Holding Constant Oil Temperature 20
Tuning Oil Temperature to Room Temperature
(or Machine Temperature)
21
Cooling Oil at Constant Capacity (%) 22
Optional Parts
Machine temperature tuning control 34
Returned oil temperature control 35
Communication with main machine 36
Maintenance
37
38
Maintenance/Inspection
• Daily maintenance/inspection
• Periodic maintenance/inspection
• To leave the unit unused for a long period
Troubleshooting
• When the unit operation seems abnormal
although no alarm is activated
• When an alarm is activated
Safety Precautions
Installation Procedure
Before Operation
Useful Functions
Maintenance
Troubleshooting
Optional Functions
Operating Procedure
DAIKIN Oil Cooling Unit
(“OILCON”)
Proper use results in power saving
PIM00116C
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PIM00116C_EN.fm 0 ページ ２００８年９月２９日 月曜日 午前１１時５１分

1
Mandatory Mandatory
Forbidden Ground cable
connection
Mandatory
Forbidden
Forbidden
7
n The instructions described below are intended to prevent injury or damage to you and other people.
Possible conditions that may result from improper handling are classified as follows:
n All these instructions include important information on safety. Be sure to observe the instructions.
n After reading this manual, be sure to keep it in place so that users can read it whenever required.
n If this product is transferred to another person, be sure to attach this manual to the product.
n To use this product safely, be sure to observe the following instructions, and safety laws and regulations for the
relevant standards listed below.
Safety Precautions
Before using this product, read the following instructions carefully to ensure proper use.
This category indicates urgently
hazardous conditions that may
result in death or serious injury.
DANGER
This category indicates potentially
hazardous conditions that may
result in death or serious injury.
WARNING
This category indicates potentially
hazardous conditions that may result
in injury or property damage only.
CAUTION
Transportation, installation, piping, electric wiring,
operation, maintenance and inspection of the
unit must be conducted by qualified people.
Check the power supply (voltage, frequency and
current).
DANGER
1. Industrial Safety and Health Law 2. Fire Service Law 3. JIS B8361 General Rules for Hydraulic Systems
Precautions for installation
Only qualified people can handle the unit.
Connect the power cable according to the procedure
described in “Electric Wiring” on page
.
Connect the power cable according to the
procedure described in this instruction manual.
Check the weight of the unit with the nameplate
to make sure that it does not exceed the rated
load capacity of the carrier. Hang the unit by the
points specified in the outline drawing. Failure to
observe this instruction may result in fall or
overturn of the unit, causing injury or property
damage.
Check the weight, and hang the unit by the
specified points.
If the unit is not grounded, you may get an
electric shock.
Ground the unit securely.
Conduct electric wiring according to “Regulation
on Electrical Facilities” and “Internal Wiring
Regulations”. Improper wiring may result in
burnout or fire.
For overseas use, conduct electric wiring
according to the local wiring standard.
WARNING
Conduct electric wiring according to the
ratings.
Never get close to the unit when it is being
carried with slings. Failure to observe this
instruction may result in fall or overturn of the
unit, causing injury or property damage.
Keep away from the unit when it is being
carried with slings.
Check the fastening points with the outline
drawing, and fasten the unit securely with bolts
or foundation bolts. Failure to observe this
instruction may result in fall or overturn of the
unit, if this unit is installed at an elevated position.
Fasten the unit during operation.
PIM00116C_EN.fm 1 ページ ２００８年９月２９日 月曜日 午前１１時５１分

2
Mandatory
Forbidden
Forbidden
Forbidden
Mandatory Mandatory
Mandatory
Mandatory Mandatory
Do not
disassemble
Mandatory
Forbidden
Forbidden
Before handling this unit, be sure to turn OFF the
power supply.
Handling this unit in live conditions may result in
electric shock.
DANGER
Precautions for use
Before handling this unit, turn OFF the power supply.
Do not operate the Oil Cooling Unit with the unit
casing or terminal covers of the motor or other
electric parts removed. Failure to observe this
instruction may result in electric shock.
Do not operate the unit with the covers opened.
Do not use this unit in any condition other than
those specified in the catalog or delivery
specifications. Failure to observe this instruction
may result in a serious accident, such as damage
to the main machine, injury, fire and electric shock.
Do not use the unit beyond specified operating conditions.
Do not modify this unit.
Any person other than DAIKIN authorized service personnel must
not disassemble or repair this unit. Failure to observe this
instruction causes fire, electric shock or injury.
If this unit is disassembled, repaired or modified by an
unauthorized person, it shall not be beyond the scope of warranty.
Do not disassemble or repair the unit.
During operation, the external panel may
become extremely hot. Be careful that your hand
or body does not directly touch it. Otherwise, you
may get a burn.
Keep your hand or body away from the unit during operation.
Do not immerse this unit in water, or splash
water on the unit. Failure to observe this
instruction may result in short-circuit or electric
shock.
Do not splash water.
During this period, electric discharge from the
internal high-voltage parts (capacitors) has not
been completed. Failure to observe this instruction
may result in electric shock.
Dot not handle the unit for 5 minutes after power supply is turned OFF.
Do not install this unit in a place where evolution,
inflow, retention or leak of inflammable gas may be
expected, or where airborne carbon fiber is present.
Failure to observe this instruction causes fire.
Do not use the unit in explosive atmosphere.
The Oil Cooling Unit is not equipped with a
circuit breaker. A circuit breaker exclusively for
the Oil Cooling Unit should be provided by user.
To ensure safety, it is recommended to use an
earth leakage breaker. To use an earth leakage
breaker, select an inverter-compatible type.
(Recommended: 15 mA or 20 mA)
CAUTION
Prepare a circuit breaker at user’s site.
If the oil pump operation system has a fault, oil
cannot be supplied to the main machine. Normally
in this case, the Oil Cooling Unit detects the fault
and outputs an alarm signal. However, it may not
be detected depending on the fault mode. If the
main machine must be protected even in such a
case, provide a flow switch for the oil flow path of
the main machine to watch the oil flow.
Provide a flow switch for the main machine.
Before or immediately after connection of the Oil Cooling Unit, make sure that the oil piping of the main machine is not
blocked (fully closed). If the unit is operated with the oil piping blocked (fully closed), the oil hose may break due to an
oil temperature rise, causing oil to flow out of the Oil Cooling Unit. When the oil temperature abnormally rises, the FE or
FH alarm is activated. In this case, stop operation of the main machine as soon as possible.
Check the oil piping.
The optional CE model (AKZ∗∗8–C) Oil Cooling Unit
is classified as an auxiliary machine of the main
machine (Overvoltage Category II). It has been
self-declared under the following conditions. Be sure
to follow the specifications of the main machine.
(1) Provide a main power supply circuit breaker for
the main machine according to the EN60204-1
requirement.
(2) Connect the power supply via a transformer
with basic insulation rating
∗
.
∗Basic insulation: Insulation provided for live parts
to ensure fundamental protection against electric
shock (under IEC Standard 60335-1)
Precaution for using the CE model (optional)
During transportation (including storage), do not
tilt the Oil Cooling Unit more than 30˚.
If the unit is tilted more than 30˚, the compressor
may have a fault.
Do not tilt the unit.
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3
Mandatory
Mandatory
Mandatory
Mandatory
Mandatory
Forbidden
Forbidden
Caution
Forbidden
Mandatory
Mandatory
Mandatory
Forbidden
Mandatory
Mandatory
Check
CAUTION
If a large quantity of refrigerant is filled in the site,
people in the site may be anesthetized or
suffocated. With the CE model, MSDS (Material
Safety Data Sheet) for the refrigerant is attached to
the product. Take an action according to the MSDS.
WARNING
If refrigerant leaks, provide thorough ventilation.
If an abnormal condition occurs, stop operation
of the unit, and leave it unused until the cause of
the trouble is securely removed. Failure to
observe this instruction may result in damage to
the unit, electric shock, fire or injury.
If an abnormal condition occurs, stop operation immediately.
Be sure to use a commercial power supply.
Using an inverter power supply may result in
burnout.
Use a commercial power supply.
To ensure safety, a cover or casing is mounted to
rotary parts. Do not put a finger or foreign object
in an aperture of the cover or casing. Failure to
observe this instruction may result in injury.
Do not put a finger or foreign object in an aperture of the unit.
After stopping operation, be sure to turn OFF the
circuit breaker.
Turn OFF the circuit breaker.
Oil pollution causes a fault or shortened service
life of the pump. Use thorough caution about oil
pollution to maintain the pollution degree at
NAS10 or lower level.
Perform daily check for oil pollution.
Before you start running the main machine,
cancel the operation lock status with the Oil
Cooling Unit operation panel. If you start the main
machine in the operation lock status, it cannot be
supplied with oil, causing damage to the machine.
Cancel operation lock before running the main machine.
Do not use this unit in a special atmosphere
including dust, oil mist or corrosive gas (H
2 S, SO 2 ,
NO
2 , Cl 2 , etc.), or at a high temperature or high
humidity.
Do not use the unit in special atmosphere.
Before executing a trial run, make sure that the
main machine is set in safe conditions (the main
machine will not run, or no accident occurs even
if the main machine runs.)
Failure to observe this instruction may result in
injury or damage to the machine.
Ensure safety of the main machine before trial run.
Do not put an obstacle within 500 mm from the
air intake/exhaust port.
If air intake/exhaust flow is blocked, this unit may
not provide the specified cooling capacity.
Do not put an obstacle near the air intake/exhaust port.
Clean the air filter at least every two weeks.
If the air filter is clogged, the cooling capacity
deteriorates, and power consumption increases.
Clean the air filter periodically.
Do not sit or step on this unit. Failure to observe
this instruction may result in fall or overturn of
the unit, causing injury.
Do not step on the unit.
Before start of operation, make sure that the oil
pipe is properly connected, and the tank is filled
with oil to an appropriate level.
Running the pump without oil results in damage
to the pump.
Do not run the pump without oil.
Fasten this unit securely so that it will not be moved
by vibration or external force during transportation.
If storing vibration or external force is applied to the
unit, the internal equipment may be damaged.
During transportation, fasten the unit securely.
Before start of operation, make sure that the oil
piping and electric wiring are properly conducted,
and connecting parts are securely tightened.
Check the unit before operation.
Otherwise, you may cut your hand with the
condenser fin edges. Furthermore, the internal
compressor or motor frames and the refrigerant
piping become extremely hot. If you touch these
parts with bare hands, you may get a burn.
When cleaning the unit, wear gloves.
PIM00116C_EN.fm 3 ページ ２００８年９月２９日 月曜日 午前１１時５１分

4
Installation Procedure
Installation
Built-inbreaker
model
Built-intank
model
Different-voltage
model
CEmodel
Built-inheater
model
Installation
Models
OilCooling Unit and Accessories 4
Precautionsfor Installation 5
Referencefor Pipe Selection 6
ElectricWiring 7
CONTENTS
1
Circulating type
Standard
model
Menu
Series
Built-in
breaker
model(–B)
CEmodel
(–C)
Built-in
heater
model(–H)
Built-in
tankmodel
(–T1,–T)
Different-
voltage
model(–E)
AKZ148
AKZ328
AKZ438
AKZ568
AKZ908
Instruction Manual
AKZ8 Series
Ifthe air filter is clogged, the cooling performance deteriorates,
causingexcess power consumption.
Cleanthe air filter periodically to reduce power consumption.
Thankyou for purchasing DAIKIN Oil Cooling Unit (“OILCON”).
Thisinstruction manual includes instr uctions forusing the Oil
CoolingUnit.
Toensure proper use of this product, be sure to read through this
instructionmanual before using it.
Afterreading this manual, keep it handy for your future reference.
MonitorItems 23
TimerOperation 24
AdditionalSetting Functions 25
SettingAdditional Function 27
ForTemperature Control Improvement 30
Alarm/WarningOutput Logic 33
AlarmSettings for Optional Protection
Devices(Installed by User) 33
Handling
BeforeOperation
12ModelIdentification and Specifications
14
PartNames and Functions 15
Namesand Functions of the Control Panel Parts 16
CheckingInitial Operating Conditions 18
OperationSetting 19
HoldingConstant Oil Temperature 20
TuningOil Temperatureto Room Temperature
(orMachine Temperature)
21
CoolingOil at Constant Capacity (%) 22
Optional Parts
Machinetemperature tuning control 34
Returnedoil temperature control 35
Communicationwith main machine 36
Maintenance
37
38
Maintenance/Inspection
•Daily maintenance/inspection
•Periodic maintenance/inspection
•To leave the unit unused fora long period
Troubleshooting
•When the unit operation seems abnormal
althoughno alarm is activated
•When an alarm is activated
SafetyPrecautions
Installation Procedure
Before Operation
Useful Functions
Maintenance
Troubleshooting
Optional Functions
Operating Procedure
DAIKIN Oil Cooling Unit
(“OILCON”)
Proper use results in power saving
PIM00116A
Built-inbreaker
model
Built-intank
model
Different-voltage
model
CEmodel
Built-inheater
model
Installation
Models
OilCooling Unit and Accessories 4
Precautionsfor Installation 5
Referencefor Pipe Selection 6
ElectricWiring 7
CONTENTS
1
Circulating type
Standard
model
Menu
Series
Built-in
breaker
model(–B)
CEmodel
(–C)
Built-in
heater
model(–H)
Built-in
tankmodel
(–T1,–T)
Different-
voltage
model(–E)
AKZ148
AKZ328
AKZ438
AKZ568
AKZ908
Instruction Manual
AKZ8 Series
Ifthe air filter is clogged, the cooling performance deteriorates,
causingexcess power consumption.
Cleanthe air filter periodically to reduce power consumption.
Thankyou for purchasing DAIKIN Oil Cooling Unit (“OILCON”).
Thisinstruction manual includes instr uctions forusing the Oil
CoolingUnit.
Toensure proper use of this product, be sure to read through this
instructionmanual before using it.
Afterreading this manual, keep it handy for your future reference.
MonitorItems 23
TimerOperation 24
AdditionalSetting Functions 25
SettingAdditional Function 27
ForTemperature Control Improvement 30
Alarm/WarningOutput Logic 33
AlarmSettings for Optional Protection
Devices(Installed by User) 33
Handling
BeforeOperation
12ModelIdentification and Specifications
14
PartNames and Functions 15
Namesand Functions of the Control Panel Parts 16
CheckingInitial Operating Conditions 18
OperationSetting 19
HoldingConstant Oil Temperature 20
TuningOil Temperatureto Room Temperature
(orMachine Temperature)
21
CoolingOil at Constant Capacity (%) 22
Optional Parts
Machinetemperature tuning control 34
Returnedoil temperature control 35
Communicationwith main machine 36
Maintenance
37
38
Maintenance/Inspection
•Daily maintenance/inspection
•Periodic maintenance/inspection
•To leave the unit unused fora long period
Troubleshooting
•When the unit operation seems abnormal
althoughno alarm is activated
•When an alarm is activated
SafetyPrecautions
Installation Procedure
Before Operation
Useful Functions
Maintenance
Troubleshooting
Optional Functions
Operating Procedure
DAIKIN Oil Cooling Unit
(“OILCON”)
Proper use results in power saving
PIM00116A
Oil Cooling Unit and Accessories
Check the following items:
Check the model name and serial No. (MFG. No.) on the nameplate attached to the right side of the Oil Cooling Unit.
Oil Cooling Unit
1
An accessory package
∗1
is attached to the top plate of the Oil Cooling Unit. Make sure that the following items are included
in the accessory package.
1. Instruction manual (This document): 1 volume
Keep this manual in place where users can read it whenever required.
2. Rubber bushing for electric wiring (Large size, with cross slit): 1 pc.
When connecting the power cable, remove the resin cable hole cap in the side plate of the unit, and attach the rubber
bushing. It is only for provisional use.
∗2
3. Rubber bushing for electric wiring (Small size, with cross slit): 1 pc.
When connecting the signal cable, remove the resin cable hole cap in the side plate of the unit, and attach the rubber
bushing. It is only for provisional use.
∗2
Accessories
2
∗1: Before operation, be sure to remove the accessory package. Otherwise, the package blocks exhaust air flow, resulting in cooling
capacity deterioration.
∗2: When connecting each cable finally, place the cable in a conduit. If the rubber bushing is used, the dust-proof effect of the electrical
equipment box deteriorates, causing a fault. For details, refer to “Wiring procedure” on page .
8
+
Accessory package
Instruction manual
(This document)
Machine nameplate
Rubber bushing
(Large and small, 1 pc. each)
Model
name
Type of
refrigerant
Manufacture
No.
Oil Cooling Unit
PIM00116C_EN.fm 4 ページ ２００８年９月２９日 月曜日 午前１１時５１分

5
Installation Procedure
Installation
Precautions for Installation
1. Make sure that the pressure loss at the oil inlet/outlet is within the following range:
• Suction pressure (at oil inlet) .......................... –30.7 to 0 kPa
• Discharge pressure (at oil outlet) .................... 0.5 MPa or less
2. Avoid using a valve in the middle of the piping.
If a valve is used, it causes a large pressure loss even when it is fully opened.
3. If the oil viscosity is high, or if there is a large pressure loss in external piping (other than the piping for the Oil Cooling
Unit), use a pipe with a larger diameter to reduce the pressure loss. (To change the pipe size, refer to “Reference for
Pipe Selection” on page .)
If the operating condition exceeds the specified range, it causes noise or fault of the unit. Use thorough caution about
the operating condition. Keep the oil viscosity at 1.4 to 200 mm
2
/s.
4. Wrap the pipe joints with sealing tape to prevent air entry or oil leak.
5. Make sure that the oil piping of the main machine is not blocked (fully closed).
Installation place and oil piping
To install this unit, select a place that meets the following conditions:
Do not place an object that may block air flow within 500 mm from the air intake/exhaust port.
Oil piping: Locations of the oil inlet, oil outlet and oil drain are shown below.
• If the evaporator (cooler) in the Oil Cooling Unit is clogged with dust, it causes not only cooling capacity deterioration, but also
a fault of the compressor or oil pump.
• During adjustment at trial run, the strainer gathers much dust from the oil piping system. Clean the strainer before starting
actual operation. Check the strainer periodically.
Suction strainer (Line filter)
Attach a strainer (mesh size: 100 to 150) with a small pressure loss to the oil piping system.
Oil tank
Right side view Rear view
OIL OUTLET
Exhaust air
Intake air
OIL DRAIN
(No connection)
OIL INLET
• To receive oil from the main machine oil piping system, provide an oil tank that can accept an increase/decrease in oil
quantity.
• Consider the tank structure so that inside of the tank can be easily cleaned. (For example, the tank top plate is detachable.)
1. Level, rigid floor (Inclination: 5˚ max.)
2.
A place where the unit is not exposed to direct sunlight or heat
3. A place with proper ventilation and little humidity
4. A place where exhaust air does not circulate (exhaust air will
not be taken into the unit)
5. A place that allows easy access to piping and wiring
6. A place with little contaminant, waste, dust particles or
oil mist
7. A place free from explosive atmosphere (evolution, inflow,
retention or leak of inflammable gas)
6
PIM00116C_EN.fm 5 ページ ２００８年９月２９日 月曜日 午前１１時５１分

6
Installation Procedure
Installation
10
mm
2
/s
10,00050,000
SUS
Saybolt second
Kinematic viscosity coefficient
5,000
3,000
2,000
1,000
500
400
300
200
150
100
75
50
40
30
20
15
10
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
–10 0 10 20 30 40 50 60
–10 0 10 20 30 40 50 60 70˚C
20 30 40 50 60
Temperature
70 80 90 100 110 120 130 140 150 ˚F
10 20 30 40 50 60
Temperature
70 80 90 100 110 120 130 140 150 ˚F
30,000
20,000
10,000
5,000
3,000
2,000
1,000
68
46
32
22
10
5
2
500
300
200
150
100
80
60
50
45
40
35
ISO VG
Reference for Pipe Selection
Connection pipe diameter (Standard model)
Condition: ISO VG32, Viscosity: 200 mm2/s
∗1: The above pipe size may not be applied to the unit, depending on the pipe specifications. For details, contact DAIKIN.
∗2: Refer to the pipe resistance calculation formula.
Pipe resistance calculation method
To determine the oil pipe size, calculate it based on the following
formula:
Pipe resistance: ∆P = 0.595 × V × Q × L/D4
(For general hydraulic oil/lubrication oil)
∆P: Pipe resistance (MPa)
V: Kinematic viscosity coefficient (mm2/s)
.....See “Viscosity vs.Temperature” chart.
Q: Flow rate (L/min)
L: Pipe length (m)
D: Pipe inner diameter (mm)
∗For flow rate (Q), refer to “Oil pump discharge rate” in
“Model Identification and Specifications” on page .
Oil Inlet
Model
Connection pipe
AKZ148 AKZ328/438 AKZ568/908
Oil Drain
Oil Outlet
Rc3/4
Rc3/4
Rc1/4
Rc1 1/4
Rc1 1/4
Pipe size/maximum pipe length chart
Suction pipe (Hose inner diameter) Unit: m
AKZ148
φ19
Size (mm)
Model
φ25.4 φ31.8 φ38.1
AKZ568
AKZ908
AKZ328
AKZ438
(15)∗1
(12)∗1
6.7
5.5
5
4
6.3
5.1
2.8
2.3
–
–
2.1
1.7
–
–
–
–
–
–
10
8
50 Hz
60 Hz
50 Hz
60 Hz
50 Hz
60 Hz
–
–
Discharge pipe Unit: m
AKZ148
φ12.7 φ19 φ25.4 φ31.8
AKZ568
AKZ908
AKZ328
AKZ438
∗2
∗2
28
23
20
16
21
17
9
7
–
–
4.2
3.4
1.8
1.4
–
–
–
–
48
40
50 Hz
60 Hz
50 Hz
60 Hz
50 Hz
60 Hz
–
–
∗For menu models, refer to “Model Identification and Specifications” on page .
Example of viscosity (Kinematic viscosity coefficient)
(1) In winter: 195 mm2/s (ISO VG32, Oil temperature: 5˚C)
(2) In summer: 29 mm2/s (ISO VG32, Oil temperature: 40˚C)
(2)
(1)
12 · 13
12 · 13
Size (mm)
Model
PIM00116C_EN.fm 6 ページ ２００８年９月２９日 月曜日 午前１１時５１分

7
Installation Procedure
Installation
Main machine (Machining center)
Power line
Circuit breaker
Power line
Signal
Main machine (Machining center)
Power line
Main machine (Machining center)
Circuit breaker
Remote control switch
Circuit breaker
Control panel
Electric Wiring
n Conduct electric wiring according to the local wiring standard.
n The Oil Cooling Unit (except for the “–B” model) is not equipped with a circuit breaker. A circuit breaker exclusively for the unit
should be mounted to the main machine.
n For electric wiring, refer to the electric wiring diagram on the nameplate attached to the rear of the electrical equipment box cover.
n Do not change the wiring in the Oil Cooling Unit. Do not touch the protection devices.
To turn ON the power supply for the Oil Cooling Unit, the following three methods are available:
When the circuit breaker for the main machine is turned ON, the Oil Cooling Unit starts operation. To stop the unit, turn
OFF the circuit breaker for the main machine.
Directly starting/stopping the Oil Cooling Unit with the main machine power supply
Starting/stopping the Oil Cooling Unit
When the remote control switch is turned ON, the Oil Cooling Unit starts operation. To stop the unit, turn OFF the remote
control switch.
Starting/stopping the Oil Cooling Unit with the remote control contact (see page )
If you keep pressing the and keys for at least 2 seconds in the “operation lock” mode, the Oil Cooling Unit starts
operation according to preset conditions. If you keep pressing the and keys for at least 2 seconds during
operation, “Loc” blinks on the data display, and the Oil Cooling Unit will be stopped (locked).
Starting/stopping the Oil Cooling Unit with the control panel
9
1
2
3
PIM00116C_EN.fm 7 ページ ２００８年９月２９日 月曜日 午前１１時５１分

8
Installation Procedure
Installation
Transformer box
Different-voltage
model (–E)
Power cable insertion
hole (φ28)
Top plate mounting screw
Top plate
Standard model,
–B, –C, –H, –T
For inside of the electrical
equipment box, refer to the top
view of the electrical equipment
box in “Outline of electrical
equipment box” (page ).
For inside of the transformer
box, refer to the transformer
power supply terminal block in
“
Outline of electrical equipment
box
” (page ).
Different-voltage model (–E)
To use an earth leakage breaker, select an inverter-compatible type.
If the earth leakage breaker is not inverter-compatible, it may malfunction due to high-frequency noise of the
inverter. (Recommended product: 15 mA or 20 mA)
CAUTION
Remove the top plate mounting screws, and
remove the top plate.
1. Insert the power cable into the power cable
insertion hole (φ28) in the side plate of the unit.
When using the different-voltage model (–E),
insert the power cable into the transformer box.
2. Insert the remote control signal cable and
external output signal cable into the signal cable
insertion hole (φ22) in the side plate of the unit.
Connect the power cable to the power supply
terminal block. Connect the ground cable to the
PE (ground) terminal.
 The cable size should conform to those listed below, or a larger size.
Model/Series name
Cable type
AKZ148/328/438/568
series
Heat-resistant vinyl,
2.0 mm
2
UL1015 AWG#14
(equivalent to 2.0 mm
2
)
2.5 mm
2
245 IEC53/H05RR-F
AKZ908 series
Heat-resistant vinyl,
3.5 mm
2
UL1015 AWG#12
(equivalent to 3.3 mm
2
)
4.0 mm
2
245 IEC53/H05RR-F
JIS
UL cable
IEC/CENELEC cable
To connect each cable, use M4 (AKZ908: M5) shielded round crimp
terminal.
Place the power cable in a conduit.

For remote control input connecting procedure, refer to page .
 For external output contact connecting procedure, refer to page .
∗ When inserting each cable from the left side of the unit (when viewed
from the front of the unit), place the cable along the guide rail in the
electrical equipment box. Then, fasten the cable to the cable anchor
at the bottom of the electrical equipment box by using a tie band etc.
Re-mount the top plate, and fasten it with the
screws.
∗Mount a circuit breaker exclusively for the Oil Cooling Unit.
The Oil Cooling Unit is not equipped with a circuit breaker. Be sure to mount a 3-pole circuit breaker exclusively for the Oil
Cooling Unit to the main machine. For the breaker capacity, refer to the specifications of each model (see page ).
To ensure safety, it is recommended to use an earth leakage breaker.
(1)(4)
(3)
(2)
(2)
Mounting a circuit breaker
Wiring procedure
1
2
3
4
12 · 13
9
9
9
10
Power cable
insertion hole (φ28)
Signal cable
insertion hole (φ28)
Power cable
insertion hole (φ28)
Signal cable
insertion hole (φ22)
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9
Installation Procedure
Installation
Top view
OFF ON
Operation setting and parameter setting
are enabled. (Standard factory setting)
Transformer power supply terminal block
For different-voltage model (–E) only
Alarm output
L1 L2 L3
Control
board
60 61 62 63 64 65 66 67 9 10 11 12 13 30 31
Operation setting and parameter
setting cannot be changed.
Conducted
by user
Temperature range
warning output
Remote control input
For connection of optional protection
device (OP)
For connection of machine
temperature tuning sensor
No connection
No connection
Power supply
terminal block
CN11
(Ground terminal)
PROTECT SW
(Erroneous operation prevention)
Signal cable terminal block
Short-circuit bar
CN2
Outline of electrical equipment box (Typical)
Connection of remote control input
To execute remote control, connect the cable according to the procedure below.
Local procurement items
Remove the short-circuit bar (between terminals [10] and [11]) on the terminal block in
the electrical equipment box.
Connect the cable specified in above between terminals [10] and [11].
∗12 VDC is applied across these terminals (Terminal [10]: negative polarity, [11]: positive polarity).
Component
Single-pole, single-throw remote control switch, or “a” contact that enables operation command output
Note) Select a switch whose minimum allowable load is 12 VDC and 5 mA.
Single-core cable: φ1.2 (AWG16), or twisted cable: 1.25 mm
2
(AWG16), M3 crimp terminal Wiring material
2
3
1
1
E3:
E2:
E1:
Select a terminal according to the main power supply voltage.
415
480
415
480
415
480440V 460 440 460 440 460
380V 400 380 400 380 400
220V
(Ground) 220220230 230 230
WVU
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10
Installation Procedure
Installation
Normal Normal or power failure
Alarm or power failure Alarm
60
61
63
60
61
63
60
61
63
60
61
63
The contact capacity is as follows:
Resistance load: 30 VDC, 2 A
The minimum allowable load is as follows:
10 µA, 10 mV
To connect an inductive load, be sure to use a
surge absorber.
CAUTION
To output the Oil Cooling Unit operation status signal to the main machine, connect the required signal cable to the signal
terminal block according to the procedure below. For details of alarms, refer to “Alarm list” (page ).
To use an output contact, change the parameter setting, and make sure that the output contact normally operates.
(For parameter setting changing procedure, refer to page .)
External output circuit
Alarm output logic
The alarm output logic can be changed depending on the
parameter setting. (See page
.)
When the power supply is turned ON,
external output becomes unstable.
Set up the main machine sequence program so that the external
output signal is ignored for one second after power-ON.
Value of the first digit in alarm output logic parameter (n01)
0 (Factory setting)
[Positive action]
1
[“b” contact]
Operation status Power OFF
(including power failure)
Power ON
Run Run Run
Alarm
level 2
Alarm
level 1
Power supply
Remote control
contact
Operation panel
Normal (“a” contact)
Alarm/Stop (Power
OFF) (“b” contact)
Pump run
(“a” contact)
Alarm level
Alarm (“a” contact)
Normal/Stop (Power
OFF) (“b” contact)
Between terminals
60 and 63
Between terminals
60 and 63
Pump run
(“a” contact)
Alarm level
Between terminals
60 and 61
[LOCK] key
Between terminals
10 and 11
Between terminals
61 and 62
Between terminals
60 and 64
Between terminals
60 and 61
Between terminals
61 and 62
Between terminals
60 and 64
Preset condition
Output logic parameter setting: “0”
Mode and terminal symbol of external output contact
Output logic parameter setting: “1”
OFF
OFF
OFF
ON
ON
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ONON
ON
ON
OFF
ON ON
ON
ON
ON ON ON
OFF
ON
Reset Reset
External output timing chart
1
2
3
Connection of external output contact
1. Screw terminal and cable size 2. Connect each cable by using a round crimp terminal.
3. Use a twisted cable.
4. When a 2-core IEC cable is used, the cable size should be
0.5 to 1.5 mm
2
.
60 61 62 63 64 65 66 67 9 10 11 12 13 30 31
RY30Y
RY52PAX
RY30W
RY30X
Normal Pump run
Alarm/Power failure
Alarm level output (OFF: Level 1, ON: Level 2)
Not used (No connection)
Not used (No connection)
Temperature
range warning
output
Remote
control
For connection of machine
temperature tuning thermistor
For connection of optional
protection device (OP)
“–H” model: Oil lack prevention
flow switch is connected.
(X2M)
Cable size
UL cableIEC cable
M3
0.25 mm
2
– 1.25 mm
2
0.3 mm
2
– 1.5 mm
2
AWG
#
22 –
#
16
JIS cable
Screw
terminal
Inside of Oil Cooling Unit
(For alarm levels, refer to page .)
26
33
39
39·40
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11
Installation Procedure
Installation
(Standard)
Th–4
TH01
A1P
Th–Fin Th–10 Th–8 Th–7
M3F FU1~5
Th–2
CN C1,C2 M2C A2P
X1M~X2M
NF Y1E
Th–3 Th–6
M1P L1 F1M
60 61 62 63 64 66 67 10 11 12 13 30 31
X2M
X4M
S4B1
23 24
S5P
1
Tr
W V U2
4 6
A4PA3P
Th–10
Th-Fin
TH01
LED1
250V 3.15A
250V 6.3A
CN16
X3M
RST
H1M
J1H
U2 V2 W2
Y1E
M
CN18 CN100
CN19 CN20
CN12 CN14
LED3LED2
CN16CN13
SW1
FU3 FU2 FU1
FU4
SA
E2E1TSR
––
+
––
+
L1
HL1 HL2
–
–
C2C1
FU5
CN15
WC NC UC VC RP SP TP
Th–8
Th–7 Th–6 Th–2 Th–3 Th–4
RY30W
RY30Y
RY52PAX
RY30X
6160 62 63 64 65 66 67 9 10 11 12 13 30 31
X2M
CN17
A1P
F1M
T1 T2 T3 L1 L2 L3 U1 V1
W1
NU WV
CN7 CN11 CN8 CN9 CN10
95 96
F1M
CN4 CN5 CN6CN3CN2
M1P M3F
M2C
M
3-
M
DC
M
3N-
A2P
LED4 LED5 LED6 LED7
LED1 LED2 LED3
CN1
SS1 SS2 SS3 SS4
NF MCCB
3 5 1
M2C
H
S3PH
Th–5
250V 3.15A
L2 L3 L1
X1M
3- 440 · 460 · 480 V 50/60 Hz 3- 380 · 400 · 415 V 50/60 Hz 3- 220 · 230 V 50/60 Hz
–E2 –E3 –E1
Standard, –B, –C, –T1, –H
3- 200/200 · 220 V 50/60 Hz
(Power supply)
Power supplyModel
White
Blue
Red
Other than
“–B” model
“–B” model only
“–B” model
Red
White
Black
(Optional parts) (Optional parts)
Main board Motor (Fan) Fuse
Operation panel board Connector Capacitor Motor (Compressor) Reactor Noise filter Motor (Pump) Over-current relay
Outlet oil temperature thermistor
Air (room temperature) thermistor Inlet oil temperature thermistor
Condenser temperature thermistor Exhaust gas temperature thermistor
EV valve outlet temperature thermistor Pump outlet temperature thermistor Fin temperature thermistor Control box temperature thermistor Electronic expansion valve Terminal block
Alarm and run signals
Pump runNormal
Alarm level output
Alarm/Power failure
ON:
Level 2
OFF: Level 1
Temperature range
warning
For connection
of optional
protection
device (OP)
Remote
control
For connection
of machine
temperature
tuning thermistor
“–H” model only
(Optional)
A4P A3P Th–5
Part symbolType
AKZ8 – OP – CSP AKZ8 – OP – CS AKZ8 – OP – A10 AKZ8 – OP – A5 AKZ8 – OP – K10 AKZ8 – OP – K5
Machine temperature tuning thermistor
Expansion board for communication with main machine
(Optional parts)
Name
Oil lack preventive pressure switch Overheat preventive temperature switch M1P ground Magnetic contactor Transformer Electric heater High-pressure pressure switch No-fuse breaker Compressor protection thermostat
Additional part symbol
S5P S4B1 H1M S3PH MCCB Tr S2B J1H
(Menu model)
–E1, E2, E3 (Different-voltage model)
Model
–B (Built-in breaker model) –C (CE model) –H (Built-in heater)
“–H” model only
CE model only
Short-circuit bar Short-circuit bar
Protection device input circuit
Communication Inverter CPUControl CPU
CPU normal indicator
Erroneous operation
prevention SW
(Except for AKZ908)
CE model only
θS2B CE model only
Brown
Blue
Yellow
Red
Red
Black
White
Red White Blue
Red Brown Blue Yellow
Power supply circuit
Surge absorber
Blue White Red
+
++
Note) 1. To use the optional oil temperature control thermistor (Th-9), substitute it for the outlet oil temperature
thermistor (Th-2) on CN11.
2. For details, refer to the electric wiring diagram for each model.
Electric wiring diagram (Typical: AKZ328)
PIM00116C_EN.fm 11 ページ ２００８年９月２９日 月曜日 午前１１時５１分

12
Before Operation
Handling
Model Identification and Specifications
Specifications (AKZ148/328/438)
Model identification
AKZ 8
-
(Note 1) Menu symbol
• B : Circuit breaker (with built-in breaker)
• C : CE-conformable
• H : Built-in heater
• T : Built-in tank
• E : Different voltage (Built-in transformer)
• 14 : 1.4 kW
• 32 : 3.2 kW
• 43 : 4.3 kW
• 56 : 5.6 kW
• 90 : 9.0 kW
E1 : 220 VAC, 230 VAC 50/60 Hz
E2 : 380 VAC, 400 VAC, 415 VAC 50/60 Hz
E3 : 440 VAC, 460 VAC, 480 VAC 50/60 Hz
(Note 2) Nominal cooling capacity
Indicates cooling capacity at standard point with commercial
power supply frequency of 60 Hz. (Inlet oil temperature and
room temperature: 35˚C, VG32-equivalent oil is used.)
Series name AKZ: Energy-saving high-precision
inverter oil cooling unit
Nominal cooling capacity (Note 2)
Series symbol (8 series)
Menu symbol (Note 1)
Oil Cooling Unit equivalent horsepower (HP) 0.5 1.2 1.5
AKZ148
–H
–C
–B
–T1
AKZ328 AKZ438
1.3/1.4 2.8/3.2
3-phase 200/200 · 220 VAC 50/60 Hz
White
Shell & coil type
Cross fin coil type
φ300, 75 W
0.4 kW × 4P
Room temperature or machine temperature∗4(Factory setting: Room temperature: Mode 3)
Inlet oil temperature or outlet oil temperature (Factory setting: Inlet oil temperature)
Within ±9.9 relative to reference temperature (Factory setting: 0.0)
Inlet oil temperature or outlet oil temperature
5–50
Over-current relay (Pump motor), Reverse-phase protector, Restart prevention timer, Low room temperature protection thermostat,
High oil temperature protection thermostat, Low oil temperature protection thermostat, Pump relief valve, Discharge pipe temperature
thermostat, Condenser temperature thermostat, Refrigerant leak detector, Inverter protector, High-pressure pressure switch (“–C” only),
Compressor protection thermostat (“–C” only), Overheat prevention temperature thermostat (“–H” only), Oil lack prevention switch (“–H” only)
Inverter compressor rotation speed + Electronic expansion valve opening
5–45
5–50
1.4–200 (ISO VG2–32)
0.5 MPa or less
Within –30.7 kPa
Lubrication oil, Mineral hydraulic oil (Phosphoric ester hydraulic oil, water/water-soluble liquid, chemical, food, fuel, cutting/grinding fluid cannot be used.)
Rc3/4
Rc1 1/4 Rc1 1/4Rc3/4 Rc3/4 Rc3/4 Rc3/4Rc1 1/4
Rc1/4 (Fastened with plug)
12/24 VDC
3.8/4.3
1.20 kVA/3.5 A
12/14.4 24/28.8
0.5 0.6
1.70 kVA/5.3 A 2.31 kVA/6.6 A
1.32 kVA/3.7 A 1.73 kVA/5.5 A 2.35 kVA/6.8 A
1.33 kVA/3.9 A 1.75 kVA/5.7 A 2.45 kVA/7.0 A
0.49 0.72 0.98
62 65
Equivalent to 0.4 kW Equivalent to 0.75 kW Equivalent to 1.1 kW
Cooling capacity (50/60 Hz)∗1kW
kW
200 V 50 Hz
200 V 60 Hz
220 V 60 Hz
mm
L/min
MPa
K
˚C
˚C
Discharge
Suction
˚C
Heater
Power supply∗2
Transformer capacity
Exterior color
Outer dimensions (H × W × D)
Compressor (Fully-enclosed DC swing type)
Evaporator
Condenser
Propeller fan Motor
Refrigerant control
Vertical: 14.7 m/s2(1.5 G) × 2.5 hr (10 to 100 Hz sweep/5 min)
Transportation vibration resistance
10 (Required for the models other than “–B”)
Local procurement item Circuit breaker (Rated current)
Refrigerant (New refrigerant: R410A)∗5Loading weight kg
Applicable oil
Sound level (Measured at 1 m from front of unit,
at 1 m height, in anechoic room)
Protection device
Temperature
control
Tuning
type
Fixed
type
Reference
Control target
Tuning range
Control target
Range
Oil pump
Motor
Discharge rate
Clacking pressure
Max. power consumption
Max. current consumption
Main circuit
Operation circuit
Circuit voltage
Model
(Selectable)
Operating range
External
pressure loss
Oil viscosity mm
2
/s
Inlet oil temperature
Room temperature
Oil inlet
Oil drain
Oil outlet
Connection pipe
–E∗3–H –C–B –T1 –E∗3–H –C–B
Stand-
ard
Stand-
ard
Stand-
ard
–T1 –E∗3
10 10 10
950 × 360 × 440650 × 360 × 440 820 × 360 × 465 950 × 360 × 440 1090 × 360 × 440790 × 360 × 440 1055 × 360 × 465 1090 × 360 × 440 1290 × 360 × 440990 × 360 × 440 1225 × 360 × 465 1290 × 360 × 440
kgWeight
A
Internal circuit breaker (Rated current)
6252 67 110 6858 73 116 7767 82 125
L
A
Oil tank (Volume) 15 20 20
2.6 kVA
∗3
3-phase 200/200 · 220 VAC 50/60 Hz
∗3
3-phase 200/200 · 220 VAC 50/60 Hz
∗3
3-phase 200/200 · 220 VAC 50/60 Hz
1
2.6 kVA 2.6 kVA
1 1
dB (A)
PIM00116C_EN.fm 12 ページ ２００８年９月２９日 月曜日 午前１１時５１分

13
Before Operation
Handling
Note) ∗1: Cooling capacity is the value at standard point (inlet oil temperature and room temperature: 35˚C, ISO VG32 oil). The product tolerance is
approx. ±5%.
∗2: Be sure to use a commercial power supply. Using an inverter power supply may result in burnout. Voltage fluctuation range should be
within ±10%.
If voltage fluctuation exceeds ±10%, consult DAIKIN.
∗3: For the different-voltage model, three types (–E1, –E2 and –E3) are available depending on the power supply voltage.
∗4: The optional machine temperature tuning thermistor is required. (For details, see page .)
∗5: The “–C” model is supplied with MSDS (Material Safety Data Sheet) for refrigerant R410A.
∗6: This product is not equipped with a circuit breaker. The user must prepare a circuit breaker.
∗7: Conventional “1 HP”-equivalent models (AKS105AK/AKZ(S)257 class) have been integrated into AKZ328 (“1.2 HP”-equivalent).
Oil Cooling Unit equivalent horsepower (HP)
Cooling capacity (50/60 Hz)∗1kW
kW
200 V 50 Hz
200 V 60 Hz
220 V 60 Hz
mm
L/min
MPa
K
˚C
˚C
Discharge
Suction
˚C
Heater
Power supply∗2
Transformer capacity
Exterior color
Outer dimensions (H × W × D)
Compressor (Fully-enclosed DC swing type)
Evaporator
Condenser
Propeller fan Motor
Refrigerant control
Transportation vibration resistance
Local procurement item Circuit breaker (Rated current)
Refrigerant (New refrigerant: R410A)∗5Loading weight
Applicable oil
Sound level (Measured at 1 m from front of unit,
at 1 m height, in anechoic room)
Protection device
Temperature
control
Tuning
type
Fixed
type
Reference
Control target
Tuning range
Control target
Range
Oil pump
Motor
Discharge rate
Clacking pressure
Max. power consumption
Max. current consumption
Main circuit
Operation circuit
Circuit voltage
Model
(Selectable)
Operating range
External
pressure loss
Oil viscosity mm2/s
Inlet oil temperature
Room temperature
Oil inlet
Oil drain
Oil outlet
Connection pipe
kgWeight
A
Internal circuit breaker (Rated current)
L
A
Oil tank (Volume)
Specifications (AKZ568/908)
2.0 3.0
5.0/5.6 8.0/9.0
AKZ568 AKZ908
3.21 kVA/9.4 A 5.02 kVA/15.2 A
3.30 kVA/9.5 A 5.14 kVA/15.6 A
3.34 kVA/9.2 A 5.20 kVA/14.5 A
Equivalent to 1.5 kW Equivalent to 2.2 kW
–H –T –E∗3 –B –C
1410 × 470 × 560 1375 × 470 × 580 1360 × 470 × 5901110 × 470 × 560 1520 × 560 × 680 1485 × 560 × 700 1470 × 560 × 6951220 × 560 × 620
115 130 18297
50 70
150 160 210125
3-phase 200/200 · 220 VAC 50/60 Hz ∗33-phase 200/200 · 220 VAC 50/60 Hz
3-phase 200/200 · 220 VAC 50/60 Hz
12/24 VDC
White
Shell & coil type
Cross fin coil type
0.75 kW × 4P
30/36
0.6
Room temperature or machine temperature∗4(Factory setting: Room temperature: Mode 3)
Inlet oil temperature or outlet oil temperature (Factory setting: Inlet oil temperature)
Within ±9.9 relative to reference temperature (Factory setting: 0.0)
Inlet oil temperature or outlet oil temperature
5–50
5–45
5–50
1.4–200 (ISO VG2–32)
0.5 MPa or less
Within –30.7 kPa
Lubrication oil, Mineral hydraulic oil (Phosphoric ester hydraulic oil, water/water-soluble liquid, chemical, food, fuel, cutting/grinding fluid cannot be used.)
Rc 11/4 Rc 11/4 Rc 11/4Rc 1Rc 1Rc 11/4
Rc 11/4
Rc1/4 (Fastened with plug)
Vertical: 14.7 m/s2(1.5 G) × 2.5 hr (10 to 100 Hz sweep/5 min)
Over-current relay (Pump motor), Reverse-phase protector, Restart prevention timer, Low room temperature protection thermostat,
High oil temperature protection thermostat, Low oil temperature protection thermostat, Pump relief valve, Discharge pipe temperature
thermostat, Condenser temperature thermostat, Refrigerant leak detector, Inverter protector, High-pressure pressure switch (“–C” only),
Compressor protection thermostat (“–C” only), Overheat prevention temperature thermostat (“–H” only), Oil lack prevention switch (“–H” only)
Inverter compressor rotation speed + Electronic expansion valve opening
∗3
5 kVA 6 kVA
–H –T –E∗3 –B –C
2 3
φ400, 90 W × 4P φ450, 150 W × 4P
1.25 1.53
65 67
15 (Required for the models other than “–B”) 20 (Required for the models other than “–B”)
15 20
Stand-
ard Stand- ard
34
kg
dB (A)
PIM00116C_EN.fm 13 ページ ２００８年９月２９日 月曜日 午前１１時５１分

14
Before Operation
Handling
50
40
45
30
20
10
51020304050
5
Room temperature
Oil Cooling Unit inlet oil temperature (˚C)
(˚C)
Allowable operating range
Before Operation
Before operating the Oil Cooling Unit, check the following items:
Operating environment
1
• Check the atmosphere for any factor (dust, oil mist, high temperature, high humidity, etc.) that may adversely affect the unit.
•
Check if the unit is not installed in explosive atmosphere (that may cause evolution, inflow, retention or leak of inflammable gas).
• The operating range is limited. Make sure that the operating conditions are within the following range.
(Note: If this unit is operated out of the specified range, the protection devices may be activated, or the service life may be shortened.)
Installation
2• Check if the unit has been securely fastened with bolts or foundation bolts.
• Check for any obstacle that blocks air intake or exhaust flow.
(Do not put an obstacle within 500 mm from the air intake/exhaust port.)
Electric wiring
5
Applicable oil
4
• Check if the cable size is larger than the specified size. (Refer to “Wiring procedure” on page .)
• Check if the ground cable is securely connected.
• Be sure to use a commercial power supply. Using an inverter power supply may result in burnout.
• Check if the power supply voltage is within the following range:
50 Hz...........200 V ±10%
60 Hz...........200/220 V ±10%
• Check if a circuit breaker is provided exclusively for each Oil Cooling Unit.
Oil piping
3• Check the oil piping for leak.
•
Check if an appropriate quantity of oil is filled in the tank. (Never run the pump without oil. Otherwise, the oil pump may be damaged.)
• Check if the main machine oil piping is not blocked (fully closed). (If the unit is operated with the main machine oil piping
blocked (fully closed), the oil temperature rises, causing an alarm.)
• Check if the pressure loss is within the specified range. (Refer to “Precautions for Installation” on page .)
• Check if the main machine oil piping is equipped with a flow switch.
(To protect the main machine, it is recommended to mount a flow switch.)
• The Oil Cooling Unit is intended for lubrication oil and hydraulic oil (mineral oil). (Oils that belong to Class 3 petroleum and Class
4 petroleum among Class 4 dangerous substances prescribed by the Fire Service Law, and correspond to Discoloration No. 1
under “Petroleum Products–Corrosiveness to Copper–Copper Strip Test (JIS K2513)” and the pollution degree of NAS Class 10.)
The following oils (liquids) cannot be used for this unit.
1. Flame-resistant hydraulic oil (Phosphoric ester / chlorinated hydrocarbon / water + glycol / W/O, O/W emulsion type oils)
2. Water and water-soluble liquids
3. Chemical and food liquids
4. Cutting oil (fluid) and grinding oil (fluid)
5. Fuels (kerosene, gasoline, etc.)
Before operating the Oil Cooling Unit, be sure
to read through this instruction manual and
understand the contents of this manual.
CAUTION
5
8
PIM00116C_EN.fm 14 ページ ２００８年９月２９日 月曜日 午前１１時５１分

15
Before Operation
Handling
Part Names and Functions
Standard (–B, –C)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
Compressor
Condenser
Fan
(for condenser)
Electronic
expansion valve
Evaporator
Oil pump
Relief valve
Rubber hose
Sucks and compresses the low-temperature,
low-pressure gas refrigerant produced in the
evaporator, to produce high-temperature,
high-pressure gas.
Conducts heat exchange between the high-temperature,
high-pressure gas refrigerant produced in the
compressor and the air, to produce high-temperature,
high-pressure liquid refrigerant.
Forcefully blows air to accelerate heat exchange
between the refrigerant in the condenser and the air.
The valve mechanism reduces pressure of the
high-temperature, high-pressure liquid refrigerant
produced in the condenser, to produce low-temperature,
low-pressure liquid/gas mixed refrigerant.
Sucks oil from outside of the unit, and discharges it
from the unit through the evaporator.
Evaporates the low-temperature, low-pressure liquid
refrigerant produced in the electronic expansion valve by
conducting heat exchange between the refrigerant and oil,
to produce low-temperature, low-pressure gas refrigerant.
Limits the oil pump discharge pressure within a
specified level.
A part of the oil piping for suction and discharge of
the oil pump.
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
Air filter
Oil drain
Circuit breaker
(“–B” only)
High-pressure pressure
switch (“–C” only)
Compressor protection
thermostat (“–C” only)
Heater (“–H” only)
Transformer
(“–E” only)
Oil tank
(“–T1” and “–T” only)
Located at the front of the condenser. It is intended
to prevent cooling capacity deterioration by
eliminating dust adhering to the condenser from the
air intake.
Drains oil from the evaporator when the Oil Cooling
Unit is re-located.
Tripped when high-pressure alarm is activated. It is
intended to protect the refrigerant system for the
condenser etc.
Tripped when compressor head high-temperature
alarm is activated. It is intended to protect the
compressor.
Tripped when over-current flows through the circuit.
It is intended to protect the internal electric wiring.
During warm-up in winter, the electric heater heats
up the oil to a preset temperature.
Intended for the different-voltage model.
Receives oil from the main machine oil piping
system. The oil tank can accept an
increase/decrease in oil quantity.
No. Name Function No. Name Function
–T1, –T–E–H
(12)
(9)
(11)
(13)
(10)
(8)
(2)
(4)
(3)
(7)
(6)
(5)
(1)
(16)
(15)
(14)
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16
Before Operation
Handling
(2) (1) (3) (10) (9)
(8)(7)(6)(5)
(4)
Names and Functions of the Control Panel Parts
(1)
(2)
(5)
(4)
(3)
(6)
(7)
(8)
(9)
(10)
Power lamp (Green)
No. Name Description Reference page
Operation mode indicator
Operation mode/data
number display
Data display
[SELECT] (selection) key
[DOWN] key
Timer mode lamp (Red)
[ENTER] (registration) key
[UP] key
Alarm lamp (Red)
Outline of control panel
Lit while power supply is ON.
Used to select each mode.
Registers an operation mode, data number or data changed.
Indicates the control panel operation mode.
NORMAL : Normal mode
SETTING : Operation setting mode
MONITOR : Monitor mode
TIMER : Timer setting mode
When an alarm is activated:
Blinks (Operation stops)
......................... Alarm level 1
Lit (Only the compressor stops).............Alarm level 2
Display the current operation mode (NORMAL/SETTING), or the data number
currently displayed on the data display.
Decrements the number of operation mode or data number/value by one.
If you keep pressing this key, the number is decremented by ten.
Increments the number of operation mode or data number/value by one.
If you keep pressing this key, the number is incremented by ten.
Blinks while the unit is halted in the timer mode.
Displays various data.
The displayed data vary depending on the operation mode and data number.
page 17
page 24
page 39
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17
Before Operation
Handling
Power ON
Normal mode
Timer setting
mode
Operation
lock mode
Parameter
setting mode
Operation
setting mode
Monitor
mode
Keep pressing these
keys simultaneously
for two seconds.
Auto-tuning
mode
Keep pressing these
keys simultaneously
for two seconds.
Keep pressing this key
for two seconds.
Mode Description Reference page Operation mode indicator
Operation lock mode Disables operations of the Oil Cooling Unit regardless of
preset conditions.
18
page
Parameter setting mode “SETTING” lamp blinks.Used to set up basic parameters∗2of the Oil Cooling Unit. 25
page
Auto-tuning mode “NORMAL” lamp blinks.
Used to set up the function for control response improvement.
30
page
Normal mode
∗1“NORMAL” lamp is lit.
Displays the current operation mode and control target value.
18
page
∗1
∗1
∗1
Operation setting mode “SETTING” lamp is lit.Specifies an operation mode and control target value.
19 - 22
page
Monitor mode “MONITOR” lamp is lit.Displays the current value of each thermistor etc. 23
page
Timer setting mode “TIMER” lamp is lit.Used to set up time for the ON timer. 24
page
∗1: The operation modes marked with a circle can be used for normal operation.
∗2: “Parameter” means a constant to be defined for each setting.
Mode changing operation
Normally, the key is used to shift between individual modes.
For special modes, you can change the mode by pressing several keys simultaneously for two seconds.
The control panel provides the following seven operation modes.
Among these seven modes, only four modes are available for normal operations.
In other modes, the Oil Cooling Unit may malfunction depending on operation.
Before using each mode, please understand the description on each mode.
Operation mode
n The factory setting is the “Operation lock” mode.
To start operation, cancel the operation lock mode.
(See page .)
n With the standard model, the initial operating conditions are as follows:
Operation mode: 3 (Room temperature tuning, Inlet oil temperature control)
Temperature difference: 0.0 (K)
CAUTION
18
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18
Before Operation
Handling
19
See page
20
See page
21
See page
22
See page
Checking Initial Operating Conditions
Turn ON the power supply for the Oil
Cooling Unit.
Is “U1” displayed on the control panel?
Check the initial operating conditions.
Changing operation settings
Is the “Operation lock” mode selected? Cancel the operation lock mode.
It means reverse-phase connection.
Exchange two phases out of three
phases (L1, L2 and L3).
(1) Operation mode display: Displays the operation mode.
(2) Data display: Displays the target temperature setting.
Check the current operation settings on the control panel display.
With the standard model, the factory setting of the operation mode is “3” (Room temperature tuning, Inlet oil
temperature control), and the temperature difference is “0.0 (K)”.
(With non-standard models, the factory settings may be different from the above.)
Holding constant oil temperature
Tuning oil temperature to room temperature (or machine temperature)
Cooling oil at constant capacity (%)
Check the indication on the control panel.
The DAIKIN factory setting is the “Operation lock” mode.
∗1:
You hear tick sound after power-ON, while the electronic
expansion valve is under initial setup. This does not mean a
fault.
∗2: For initial setup of the electronic expansion valve and the
microprocessor, the Oil Cooling Unit takes 60 to 90 seconds.
After the initial setup, cooling operation starts (the compressor
runs).
∗The “Operation lock”
mode locks the Oil
Cooling Unit, and disables
any key operation other
than operation lock cancel.
If you keep pressing the and keys
simultaneously for two seconds, the Oil Cooling
Unit starts operation.
Keep pressing
these keys
simultaneously for
two seconds.
Operation lock mode Normal mode
YES
YES
NO
NO
(1) (2)
Example) Room temperature: 35˚C
PIM00116C_EN.fm 18 ページ ２００８年９月２９日 月曜日 午前１１時５１分