Hitachi CA47TLA-D2PE3 User manual

Scroll Compressor Specifications for Vehicle Air Conditioning
December 1, 2021
Compressor model
CA47TLA-D2PE3
CA56TLA-D2PE3
Displacement
47cm3/rev
56cm3/rev
Refrigerant
R134a
Power supply
3φ380-415V 50Hz
3φ380-415V 50Hz
Applicable standards
CE、RoHS
<Related Documents>
Detailed precautions when using: Engineering Manual
Installation details: Installation Manual
Be sure to read the above attached documents.
Hitachi-Johnson Controls Air Conditioning, Inc Shimizu Factory
390 Muramatsu, Shimizu-ku, Shizuoka-City, Shizuoka Prefecture
Note: These Specifications are subject to change without notice according to our company’s circumstances. However, this may
not apply in a case where contracts are signed and concluded by both the supplier and the purchaser. Notice of change will
be provided by the supplier in advance based on the items specified in this document.
Approval and signature by customer
Signature by supplier
Specification No.: SSTSM-19013
Hitachi-JohnsonControls
Air Conditioning,Inc.
SHIMIZU WORKS
2021
12
01

Contents
1．SCOPE OF APPLICATION
2．RANGE OF DELIVERY AND SPECIFICATIONS
3．GENERAL SPECIFICATIONS
4．RELATED LAWS AND REGULATIONS
5．COMMON SPECIFICATIONS FOR COMPRESSORS
6．WORKING RANGE
7．PERFORMANCE DATA
7-1．Model: CA47TLA-D2PE3
7-2．Model: CA56TLA-D2PE3
8．DIMENSIONAL DRAWING OF SCROLL COMPRESSOR
9．OPTIONAL PARTS LIST
10．ASSEMBLY DRAWING FOR COMPRESSOR VIBRATION PROOF RUBBER
11．DISCHARGE GAS THERMOSTAT SET
11-1．DISCHARGE GAS THERMOSTAT SET
11-2．FIXING PLATE
12．PROTECTION RATING OF THE POWER SUPPLY TERMINAL BOX (IP CODES)
12-1．PROTECTION RATING (IP CODES)
12-2．IP65 CRITERIA FOR JUDGEMENT
12-3．SCOPE OF IP65 APPLICATION
13．NAMEPLATE MARKING CONTENTS
13-1．Model: CA47TLA-D2PE3
13-2．Model: CA56TLA-D2PE3
14．PACKING SPECIFICATIONS
Revision History
Date
Page of
revision
Reason
Description
Nov. 28, 2019
1, 9
Correction of errors. The addition of
the parts model.
The error in writing of the identification
mark of “Vibration Proof Rubber Set“.
June 9, 2021
Cover
4
Added “S“ to the top of specification No.
Reviewed the sentence expression of
Clause 5.13.
Dec. 1, 2021
2
Review of harmonized standards.

1
1．SCOPE OF APPLICATION
These Specifications shall be applied to scroll compressors for vehicle air conditioning and optional
products.
2．RANGE OF DELIVERY AND SPECIFICATIONS
The relationship between the range of delivery and specifications for parts are as follows.
Model
Quantity
Remarks
Compressor
Compressor
CA47TLA
-D2PE3
CA56TLA
-D2PE3
1
*Nitrogen gas filling for
rustproofing
*Enclosing refrigerant oil
(The enclosed amount is
described in the nameplate.)
Optional
parts
Vibration Proof
Rubber Set
VPR-A2
1
Discharge Gas
Thermostat set
DGT-D or
DGT-E
1
*DGT-D is a standard product.
DGT-D: Lead wire 300 mm
DGT-E: Lead wire 2,500 mm
3．GENERAL SPECIFICATIONS
Type
Hermetic type scroll compressor
Model
CA47TLA-D2PE3
CA56TLA-D2PE3
Power supply
AC three-phase, 380-415V 50Hz
Operating voltage range
V
342 –456
Refrigerant
R134a
Standard performance (*1)
Refrigerating capacity
Input
COP
kW
kW
5.51 (- 7% Min.)
1.96 (+ 7% Max.)
2.8
6.50 (- 7% Min.)
2.25 (+ 7% Max.)
2.9
Displacement per rotation
Rated revolution
cm3/rev
rpm
47
2,880
56
2,880
Refrigerant oil
Product name
Type
Density
Specified enclosed oil quantity
g/cm3
liter
IDEMITSU Duphni Hermetic Oil FVC68D
PVE
0.937 (when at 15 ℃)
1.4
1.5
Product weight
kg
33 (after enclosing oil)
34 (after enclosing oil)
Motor
Type
Number of poles
Three-phase induction motor
2 poles
Start current
A
38 (when at 415V)
48 (when at 415V)
Wiring resistance
Ω
5.07±0.50
(when at 20 ℃)
3.79±0.38
(when at 20 ℃)
Insulation class
E
Maximum allowable current of
compressor (*2)
A
6
7
Protector
(1) Discharge gas thermostat
(2) Internal motor protector
Piping connections
Type
Suction
Discharge
mm
mm
Copper pipes for brazing connection
Outside diameter Φ19.05
Outside diameter Φ12.7
IP rating (*3)
IP65

2
Notes:
1. Standard performance (*1) is based on the following operating conditions. Temperature is based
on the dew point.
2. The maximum allowable current (*2) is based on the following over-load condition.
Overload condition should not be continuous.
3. IP rating (*3) does not take the cable gland into consideration.
To connect power lines with the terminals in the power supply terminal box, a cable gland specified
in 12-3 should be prepared and installed by each customer. The cable gland should be applied to
specified IP code (*3) and its level should be confirmed at prototype test.
4. Shock & vibration test
This compressor was examined under the standard installation environment using Vibration Proof
Rubber, which is the Hitachi standard mounting assembly and was confirmed to meet the
standards “IEC61373 (1999), Category 1, Class B.”When you use a product other than the
specified rubber hardness product, it is necessary to confirm that the above standards are met.
Otherwise, there may be problems such as, in the worst case scenario, breakage of legs of the
compressor due to abnormal vibrations.
5. Purpose of Use
The compressor shall not be used for purposes other than vehicle air conditioning.
4．RELATED LAWS AND REGULATIONS
IEC60335-1(2010)/ EN60335-1(2012) and IEC60335-2-34(2012)/ EN60335-2-34(2013) shall
apply.
5．COMMON SPECIFICATIONS FOR COMPRESSORS
5.1 Appearance
Black coating shall be applied to the entire surface of the compressor, and there should be no
significant scratches, dents, peeled paint, and rust in appearance.
5.2 Marking
The nameplate that describes the following contents shall be attached in a visible position on
the surface of the compressor using a method that is difficult to peel off:
Compressor model, type of refrigerant, number of poles, number of phases, rated voltage,
rated frequencies, production month and year, rated output of motor, locked rotor current,
refrigerant oil enclosed capacity, compressor weight, production number, maximum allowable
pressure (design pressure), maximum/minimum allowable temperature, IP codes.
Refer to Clause 13 “Nameplate Marking Contents” for details.
Evaporating temperature
7.2 ℃
Condensing temperature
54.4 ℃
Degree of subcooling for liquid refrigerants
8.3 K
Degree of superheat of suction gas
11.1 K
Ambient temperature
35.0 ℃
Cooling of the compressor
Natural convection
Evaporating temperature
(suction gas pressure)
15.2 ℃(0.39 MPaG)
Condensing temperature
(discharge gas pressure)
70 ℃(2.02 MPaG)
Operating voltage
342V

3
5.3 Insulation Distance
IEC60335-2-34 shall apply.
5.4 Insulation Resistance
Insulation resistance should be measured between the charging part and non-charging metal
part using the 500V insulation resistance tester at room temperature and normal humidity,
and it should be 10MΩor higher.
5.5 Withstand Voltage
After the test in 5.4 is complete, apply AC voltage using the gradually ramp method between
the charging part and non-charging metal part (2E + 1000)V, (E: rated voltage). The
compressor shall withstand for one minute continuously.
5.6 Test Pressure
The compressor shall comply with IEC60335-1 and IEC60335-2-34.
5.7 Operating Noise and Vibration
There shall be no abnormal noise and vibration when the compressor is operated or starts
and stops within the usage conditions of the compressor.
5.8 Storage
* The compressor should be stored in a clean and dry place.
* The compressor is a horizontal type. It should be transported and stored in the horizontal
position.
* Do not store the compressor outdoors and in a place where water-drops from the
circumferences will pour onto it.
There may be the following harmful influence under conditions in which water-drops are
poured:
・Corrosion on the surface of the compressor (rust or blisters)
・Water entry into the terminal box.
* The compressor should be stored on a double stack at most based on the packing
specifications when shipping. Refer to Clause 14 “Packing Specifications” for details.
* The storage temperature should be within - 20 ℃to + 50 ℃.
* The oil in this compressor is synthetic oil, which has higher moisture absorbency than
conventional oil. Do not leave it exposed to the air for a long time, and it should be limited
within 3 to 5 minutes as a guide.
5.9 Moving and Transportation
* Falling, dragging and being impacted during work are prohibited. The compressor should
be handled carefully so as not to apply force locally to the convex part, such as the pipes, the
power supply terminal box (including terminal plugs), and the legs. Also the compressor
should not be moved when holding the power supply terminal box.
* In the case of horizontal type compressors, they should be handled in the horizontal position
at the time of storage and transport.
5.10Change and Addition
When there is a need to change or add to the items prescribed in these specifications, both
parties shall communicate the contents and the reasons in writing promptly and obtain
approval.
5.11 Discontinued Production
For models that are already delivered, production may be discontinued according to our
company’s circumstances.

4
5.12Occurrence of Problems
If problems occur after delivery, both parties shall raise them promptly and solve them in good
faith.
5.13Warranty
Only when production defects are found within two years after production of the compressor,
and our company recognizes the production defects, will a replacement product be supplied.
Any defects occurred by other causes are not covered by the warranty: ex) when scroll
compressors are operated under conditions that deviate from the delivery specifications and
the Engineering Manual, or in an environment where moisture, dust, liquid return and
vibrations are observed in the refrigerant cycle.
When a different warranty condition is agreed in a sales contract or other documentation, that
shall take precedence.
5.14 Compressor Specifications
These specifications shall become effective on the date of issuance by our company. A
customer shall put a seal of receipt or sign in the specified location, and return them by the
time the order is accepted by our company. If they are not returned by the time the order is
accepted, the contents of these specifications shall be deemed approved.

5
6．WORKING RANGE (Pressure and Temperature)
Notes:
1. ε: Pressure ratio ( Discharge gas pressure abs/ Suction gas pressure abs )
2. Temperature is based on the dew point.
Suction Pressure Ps ( MPaG )
Discharge Pressure Pd ( MPaG )
ET= 15.2, Ps = 0.39
ET= -15.5, Ps = 0.06
CT = 46.7
Pd = 1.11
ET = -1.0
Ps = 0.182
ET = 7.9
Ps = 0.285
CT = 38.7
Pd = 0.88
Continuously
Working Range
Evaporating Temperature ET ( ℃)
Condensing Temperature CT ( ℃)

6
7．PERFORMANCE DATA
7-1. Model: CA47TLA-D2PE3
Cooling capacity〔kW〕
ET〔℃〕
CT〔℃〕
-10
-5
0
5
10
15
35
3.35
4.20
5.18
6.32
7.63
-
40
3.13
3.96
4.91
6.00
7.27
8.73
45
2.90
3.70
4.62
5.68
6.90
8.30
50
2.66
3.43
4.32
5.34
6.51
7.86
55
2.40
3.15
4.01
4.99
6.12
7.41
60
-
2.85
3.68
4.62
5.70
6.94
65
－
-
3.34
4.25
5.28
6.46
Power consumption〔kW〕
ET〔℃〕
CT〔℃〕
-10
-5
0
5
10
15
35
1.17
1.20
1.22
1.26
1.29
-
40
1.33
1.35
1.37
1.41
1.44
1.48
45
1.50
1.51
1.54
1.57
1.61
1.65
50
1.71
1.71
1.72
1.76
1.79
1.84
55
1.96
1.93
1.94
1.96
2.00
2.04
60
-
2.28
2.20
2.18
2.19
2.23
65
－
-
2.46
2.46
2.48
2.53
Current〔A〕
ET〔℃〕
CT〔℃〕
-10
-5
0
5
10
15
35
2.6
2.7
2.7
2.7
2.8
-
40
2.8
2.8
2.9
2.9
2.9
3.0
45
3.0
3.0
3.1
3.1
3.2
3.2
50
3.3
3.3
3.3
3.3
3.4
3.4
55
3.6
3.6
3.6
3.6
3.7
3.7
60
-
4.1
3.9
3.9
3.9
4.0
65
－
-
4.4
4.3
4.3
4.3
Notes:
1. CT: Condensing temperature
2. ET: Evaporating temperature
3. Performance is the calculated value of the above conditions.
4. Temperature is based on the dew point.
5. C1-C10: Regression coefficient specified in AHRI540_Sec5.2
Coefficient
Cooling Capacity 〔kW〕
Power consumption 〔kW〕
Current 〔A〕
C1
6.852E+00
1.043E-01
1.111E+00
C2
2.607E-01
-2.886E-02
-8.111E-02
C3
-4.247E-02
4.813E-02
8.458E-02
C4
4.280E-03
-9.651E-04
-1.361E-03
C5
-1.423E-03
1.801E-03
4.220E-03
C6
-1.189E-04
-7.816E-04
-1.798E-03
C7
2.727E-05
-3.365E-06
-3.602E-06
C8
-3.236E-05
2.558E-05
3.529E-05
C9
2.705E-07
-2.296E-05
-4.982E-05
C10
-9.067E-07
9.324E-06
1.960E-05
Rating Conditions
Power Source
Three-phase 380V
Frequency
50Hz
Refrigerant
R134a
Return Gas Superheating
11.1K
Liquid Subcooling
8.3K

7
7-2. Model: CA56TLA-D2PE3
Cooling capacity〔kW〕
ET〔℃〕
CT〔℃〕
-10
-5
0
5
10
15
35
4.12
5.16
6.37
7.76
9.38
-
40
3.85
4.86
6.02
7.37
8.93
10.72
45
3.56
4.54
5.67
6.97
8.46
10.19
50
3.26
4.21
5.29
6.55
7.98
9.64
55
2.93
3.86
4.91
6.11
7.49
9.07
60
-
3.49
4.50
5.66
6.98
8.49
65
－
-
4.08
5.19
6.45
7.90
Power consumption〔kW〕
ET〔℃〕
CT〔℃〕
-10
-5
0
5
10
15
35
1.36
1.38
1.42
1.45
1.49
-
40
1.53
1.55
1.58
1.62
1.66
1.70
45
1.73
1.74
1.77
1.81
1.85
1.90
50
1.97
1.96
1.99
2.02
2.07
2.11
55
2.26
2.22
2.23
2.26
2.30
2.35
60
-
2.62
2.52
2.50
2.52
2.56
65
－
-
2.82
2.82
2.85
2.89
Current〔A〕
ET〔℃〕
CT〔℃〕
-10
-5
0
5
10
15
35
3.1
3.1
3.2
3.2
3.3
-
40
3.3
3.3
3.4
3.4
3.4
3.5
45
3.5
3.5
3.6
3.6
3.7
3.7
50
3.8
3.8
3.8
3.9
3.9
4.0
55
4.1
4.1
4.1
4.1
4.2
4.3
60
-
4.6
4.5
4.5
4.5
4.5
65
－
-
5.0
4.9
4.9
4.9
Notes:
1. CT: Condensing temperature
2. ET: Evaporating temperature
3. Performance is the calculated value of the above conditions.
4. Temperature is based on the dew point.
5. C1-C10: Regression coefficient specified in AHRI540_Sec5.2
Coefficient
Cooling Capacity 〔kW〕
Power consumption 〔kW〕
Current 〔A〕
C1
8.438E+00
1.452E-01
1.519E+00
C2
3.216E-01
-3.252E-02
-8.659E-02
C3
-5.247E-02
5.405E-02
8.868E-02
C4
5.277E-03
-1.094E-03
-1.450E-03
C5
-1.791E-03
2.038E-03
4.496E-03
C6
-1.562E-04
-8.654E-04
-1.901E-03
C7
3.337E-05
-3.851E-06
-3.758E-06
C8
-4.047E-05
2.901E-05
3.756E-05
C9
4.775E-07
-2.601E-05
-5.303E-05
C10
-1.038E-06
1.039E-05
2.084E-05
Rating Conditions
Power Source
Three-phase 380V
Frequency
50Hz
Refrigerant
R134a
Return Gas Superheating
11.1K
Liquid Subcooling
8.3K

8
8．DIMENSIONAL DRAWING OF SCROLL COMPRESSOR
Model: CA47TLA-D2PE3, CA56TLA-D2PE3
.
Note:
1.Unit is mm.
Terminal Box
Refrigerant Discharge
Connection
Name Plate
Refrigerant Suction
Connection

9
9．OPTIONAL PARTS LIST
Optional parts are sold separately. Refer to the following table and place an order as needed.
Product name
Quantity
Vibration Proof Rubber
Set
(Model: VPR-A2)
1
Vibration Proof Rubber 1
4
Vibration Proof Rubber 2
4
Spacer
4
Washer
4
M10 Bolt
4
Spring Washer
4
M10 Nut
4
Discharge Gas
Thermostat Set
(Model: DGT-D)
1
-
Standard specifications
Discharge gas thermostat
1
-
Lead wire 300 mm
Fixing Plate
1
-
Discharge Gas
Thermostat Set
(Model: DGT-E)
-
1
Discharge gas thermostat
-
1
Lead wire 2,500 mm
Fixing Plate
-
1
Notes:
1. A Vibration Proof Rubber Set includes a set of Vibration Proof Rubber, a spacer, washer, M10 bolt,
spring washer and M10 nut, which are required to install a compressor.
2. A Discharge Gas Thermostat Set is a set of the Discharge Gas Thermostat and the Fixing Plate.
Lead wire length for the Discharge Gas Thermostat is 300 mm (standard product).
Model: DGT-E (lead wire length: 2,500 mm) is also available.
The Fixing Plate is common for both.

10
10．ASSEMBLY DRAWING FOR COMPRESSOR VIBRATION
PROOF RUBBER
Note:
Parts with (*) are optional.
Base of Unit
No. 2
Vibration Proof
Rubber 1
No. 3
Vibration Proof
Rubber 2
No.
Name
Remarks
1
Compressor (leg)
※2
Vibration Proof Rubber 1
Rubber hardness
55°
※3
Vibration Proof Rubber 2
Rubber hardness
55°
※4
Spacer
※5
Washer
※6
M10 Bolt
tightening torque
35 N･m
※7
Spring Washer
※8
M10 nut
No. 4
Spacer
No. 5
Washer
No. 8
M10 Nut
No. 6
M10 Bolt
No. 7
Washer

11
11．DISCHARGE GAS THERMOSTAT SET
11-1. DISCHARGE GAS THERMOSTAT
Contact capacity ：AC250V 3.0A or less ( resistance load )
Thermostat model ：UT-430K
Set temperature ：OPEN 130 ℃± 5 ℃, CLOSE 100 ℃± 15°C
Operating voltage range ：AC180-220V, 0.005 - 3.0A
and current range DC5 - 24V, 0.005 - 0.020A
Applicable standards ：UL FILE No. E222361
11-2. FIXING PLATE
300
34
10.6
7.6

12
12．PROTECTION RATING OF THE POWER SUPPLY TERMINAL BOX
(IP CODES)
Protection rating of the power supply terminal box of this compressor is specified as follows:
12-1．PROTECTION RATING (IP CODES)
12-2．IP65 CRITERIA FOR JUDGEMENT
“Protection against water,” according to IEC60529, is specified as follows:
* Ingress of water drops inside is permitted.
* The allowable amount of water drops when they enter inside, and withstand voltage
test conditions shall be decided by users.
* The criteria for judgement of this compressor are described in Table12-1.
Table 12-1
Item
Test conditions
Criteria for judgement
Remarks
Item
Conditions
“Protection
against access
to dangerous
parts (IP6X)”
Proximity probe
Diameter: 1.0 mm
Length: 100 mm
Bottoming force: 1 N
There is no hole in 1 mm or
greater diameter on the
terminal box.
“Protection
against solid
foreign objects”
(IP6X)
Test environment
Temperature range:
15-35℃
Atmospheric
pressure: 86-106 kPa
There is no ingress of dust
inside.
The
compressor
stops.
Floating dust on
the exterior of the
terminal box
Talcum powder of 75
μm or less
Internal pressure
of the terminal
box
Negative pressure
(Max. 2 kPa)
Test duration
8 hours
“Protection
against water”
(IPX5)
Test environment
Temperature range:
15-35℃
Atmospheric
pressure: 86-106 kPa
(1) Observing ingress of
water
Even if water enters, it will
not stick to the following:
- Connector Block
- Silicon Rubber of
Hermetic Terminals
(Filled part in Fig. 12-1)
(2) Withstand voltage test
Even if water enters,
insulation between power
terminals and earthing
terminals will be maintained
in the following withstand
voltage test:
- Voltage AC 1920V
- Application time: 1 minute
The
compressor
stops.
Drainage
Fresh water with
temperature
difference from the
compressor within
5℃
Drainage nozzle
size
6.3 mm
Drainage volume
12.5 ± 0.625 Litter per
minute
Drainage
direction
Horizontal direction
(drainage position is
fixed; rotate the
compressor
horizontally)
Drainage
distance
2.5-3 m
Test duration
3 minutes
Applicable standards
IEC60529: 2001
Protection rating
IP65

13
12-3．SCOPE OF IP65 APPLICATION
With the power supply terminal box as an outline, it shall apply to the portions excluding the
cable gland part (dust and water ingress routes illustrated in Fig. 12-1.)
＊A customer is requested to examine the cable gland part during the prototype test, and
confirm the protection rating.
＊Use the cable gland with the following specifications.
IP codes
IP66 or IP68 (pressure resistance 0.1 MPa or higher)
Heat resistant temperature
120 ℃or higher
Ａ
Power supply
terminal box
Figure 12-1．Power Supply Terminal Box (View from Ａ)
Cable gland
Plug cover fixing screw (4 places)
(Screw tightening torque = 2 N･m)
Plug cover
Protection
cover
Gasket
Cable
Out of scope: Ingress of
dust and water
Connector block
Sealed type power terminal

14
13．NAMEPLATE MARKING CONTENTS
13-1. Model: CA47TLA-D2PE3
13-2. Model: CA56TLA-D2PE3

15
Plastic bag
14．PACKING SPECIFICATIONS
* Packing specifications are described in the following drawing.
* Eight compressors can be contained per pack. Customers are requested to place
an order for every 8 units excluding sample machines.
Notes:
1. Unit: mm
2. Other specifications are as follows:
Model
Total weight
(reference value)
Package
capacity
Allowable stack
When transporting
When storing
CA47TLA
320 kg
0.54 m3
A double stack
A double stack
CA56TLA
330 kg
Compressor is screwed to the
wooden frame base.
(Coach screw, Washer and Rubber sheet)

–
ENGINEERING
MANUAL
–
CA SERIES AND GA SERIES
SCROLL COMPRESSOR
FOR VEHICLE AIR CONDITIONING
R134a
MODELS
CA47TLA-D2PE3
CA56TLA-D2PE3
GA120TLA-D2PE3
ESTSM-21020
June 9, 2021

Contents
1. RANGE OF APPLICATION AND PRECAUTIONS FOR USE
1-1 RANGE OF APPLICATION
1-2 PRECAUTIONS FOR REFRIGERANT CYCLE DESIGN
1-3．Precautions for Electrical Wiring
1-4．PRECAUTIONS WHEN STORING AND TRANSPORTING
1-5．PRECAUTIONS FOR CONSTRUCTION
2. BASIC ELECTRICAL WIRING DIAGRAM (for 3 phase)
2-1．CONTROL SEQUENCE
2-2. THE METHOD OF MANUAL RESETTING
3. POWER SUPPLY TERMINAL BOX STRUCTURE
4. EXAMPLE OF STANDARD REFRIGERANT CYCLE
Revision History
Date
Page of
revision
Reason
Description
June 9, 2021
Cover
Cover design change. Added to the manual No.

1
IMPORTANT NOTICE
TO USE THE COMPRESSOR PROPERLY, CAREFULLY READ AND FULLY
UNDERSTAND THIS MANUAL.
CAUTIONARY INSTRUCTIONS
IMPORTANT
READ THESE “CAUTIONARY INSTRUCTIONS” CAREFULLY BEFORE
USING THE COMPRESSOR.
1. INSTALLATION
WARNING
WARNING
WARNING
WARNING
WARNING
WARNING
!
!
** TO AVOID ELECTRICALSHOCKAND FIRE**
Use this compressor on an earthed system only.
** TO AVOID ELECTRICITY LEAKAGE, BURNOUTAND FIRE CAUSED BYTHE
ENTRY OF WATER INTO THE TERMINAL BOX **
** TO AVOID ELECTRICAL SHOCK CAUSED BY LEAKAGE OF ELECTRICITY **
** TO AVOID EXPLOSION ACCIDENTS CAUSED BY CORROSION **
DO NOT install and operate the compressor outdoors or in a place where water-drops from
the circumferences are poured on to the compressor or humidity is high.
!
** TO AVOID LEAKAGE OF ELECTRICITY **
Be sure to use an ELB (Earth Leakage Breaker).
!
** TO AVOID BURNOUT **
Make sure there are no abnormalities such as phase interruption before turning on the power
to the compressor.
!
** TO AVOID BREAKAGE CAUSED BY REVERSE ROTATION **
A reverse phase protection relay should be installed for 3 phase compressors.
** TO AVOID OVERPRESSURE HAZARD **
Be sure to install a high-pressure switch or a pressure relief valve in the compressor
discharge line.
!