Mitsubishi OC322F Service Manual

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

TECHNICAL & SERVICE MANUAL

R410A

Outdoor unit
[model names]

SUZ-KA25VA SUZ-KA25VA.TH SUZ-KA25VAR1.TH
SUZ-KA35VA SUZ-KA35VA.TH SUZ-KA35VAR1.TH
SUZ-KA25VAH SUZ-KA25VAH.TH
SUZ-KA35VAH SUZ-KA35VAH.TH
SUZ-KA50VA SUZ-KA50VA.TH

SUZ-KA50VAR2.TH

SUZ-KA60VA SUZ-KA60VA.TH

SUZ-KA60VAR2.TH

SUZ-KA71VA SUZ-KA71VA.TH

[Service Ref.]

SUZ-KA50VA

SUZ-KA60VA

1.TH

1.TH

SUZ-KA71VA1.TH

SUZ-KA25VAHR1.TH
SUZ-KA35VAHR1.TH

October 2009

No.OC322

REVISED EDITION-F

HFC

utilized

R410A

Revision:

• "15. RoHS PARTS
LIST" has been
revised in REVISED

EDITION-F.

.• Some descriptions

have been modified.

• Please void OC322
REVISED EDITION-E.

Indication of
model name

SUZ-KA25VA(H).TH SUZ-KA25VA(H)R1.TH
SUZ-KA35VA(H).TH SUZ-KA35VA(H)R1.TH

NOTE:

This service manual describes technical data of the
outdoor units.
RoHS compliant products have <G> mark on the spec
name plate.
For servicing of RoHS compliant products, refer to the
RoHS Parts List.

CONTENTS

1.

COMBINATION OF INDOOR AND OUTDOOR UNITS

2. TECHNICAL CHANGES

3. PART NAMES AND FUNCTIONS

4. SPECIFICATION

5. NOISE CRITERIA CURVES

6. OUTLINES AND DIMENSIONS

7. WIRING DIAGRAM

8. REFRIGERANT SYSTEM DIAGRAM

9. PERFORMANCE CURVES

10. ACTUATOR CONTROL

11. SERVICE FUNCTIONS

12. TROUBLESHOOTING

13. DISASSEMBLY INSTRUCTIONS

14. PARTS LIST

15. RoHS PARTS LIST

.................................................

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...................

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.......

103

113
119

2

3
7
8

12
13
15

23
29

57
58
58

Revision:

"15. RoHS PARTS LIST" has been modifi ed on page 123.

Page Revise point Service Ref. Incorrect Correct

1

OUTDOOR UNIT

123

ELECTRICAL PARTS
No.10
INVERTER P.C. BOARD

COMBINATION OF INDOOR AND OUTDOOR UNITS

SUZ-KA25VAHR1.TH E12 575 451 E17 575 451

SUZ-KA35VAHR1.TH E12 576 451 E17 576 451

1-1. INDOOR UNIT SERVICE MANUAL

Indoor unit

Service Ref.

SLZ-KA25VA(L).TH

SLZ-KA35VA(L).TH

SLZ-KA50VA(L).TH

Service

Manual No.

OC320

KA25VA(H).TH
KA25VA(H)R1.TH

—

—

Heat pump type

KA35VA(H).TH
KA35VA(H)R1.TH

—

—

Outdoor unit

SUZ-

KA50VA

(1)

.TH

KA50VAR2.TH

—

—

KA60VA

(1)

.TH

KA60VAR2.TH

—

—

—

KA71VA

—

—

—

(1)

.TH

SEZ-KC25VA.W

SEZ-KA35VA.TH

SEZ-KA50VA.TH

—

—

—

—

—

—

—

—

—

—

OC321

SEZ-KA60VA.TH

SEZ-KA71VA.TH

—

—

SEZ-KD25VA(L).TH

SEZ-KD35VA(L).TH

SEZ-KD50VA(L).TH

HWE0711

SEZ-KD60VA(L).TH

Heat pump without electric heater

SEZ-KD71VA(L).TH

—

—

—

—

MFZ-KA25VA-E1

MFZ-KA35VA-E1

OB409

MFZ-KA50VA-E1

(NOTE) • Please refer to the service manual of indoor unit or the technical data book for the combination data.

• Only MFZ-KA·VA series can be connected to SUZ-KA·VAH series.

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

1-2. TECHNICAL DATA BOOK

OCS03

2

2

TECHNICAL CHANGES

SUZ-KA25VA.TH SUZ-KA25VAR1.TH
SUZ-KA25VAH.TH SUZ-KA25VAHR1.TH
SUZ-KA35VA.TH SUZ-KA35VAR1.TH
SUZ-KA35VAH.TH SUZ-KA35VAHR1.TH

1. Inverter P.C. board and Power P.C. board have been changed.

2. Refrigerant circuit has been changed.

• Compressor has been changed. (KNB073FDVH(C) ĺ KNB073FFDHC : SUZ-KA25VA(H)R1.TH)
(KNB092FCAH ĺ KNB092FFAHC : SUZ-KA35VA(H)R1.TH)

• Muffler of liquid pipe side has been deleted.

• Muffler of gas pipe side has been changed.

• Capillary tube of liquid pipe side has been added. (SUZ-KA35VA(H)R1.TH)

• 4-way valve and R.V. coil have been changed.

• Specification of LEV body has been changed.

• Stop valve has been changed.

3. Precharged refrigerant amount has been changed. (900g ĺ 800g : SUZ-KA25VA(H)R1.TH)

4. Fan motor has been changed. (RC0J50-AL ĺ RC0J50-DB)

5. Outdoor heat exchanger temperature thermistor (RT68) has been added.

SUZ-KA50VA1.TH SUZ-KA50VAR2.TH
SUZ-KA60VA

1. OUTDOOR ELECTRONIC CONTROL P.C. BOARD has been changed.

2. Compressor has been changed. (SNB130FLDH(1) ĺ SNB130FGBH)

3. High pressure switch has been added. (SUZ-KA60VAR2.TH)

4. Thermistors (RT61, 62, 64, 65, 68) have been changed. (SUZ-KA50VAR2.TH)

1.TH SUZ-KA60VAR2.TH

SUZ-KA50VA.TH SUZ-KA50VA1.TH
SUZ-KA60VA.TH SUZ-KA60VA
SUZ-KA71VA.TH SUZ-KA71VA

1. OUTDOOR ELECTRONIC CONTROL P.C. BOARD has been changed.

2. Max. height difference 15m

3. Guaranteed operating range
Lower limit (Cooling/Outdoor) -10:DB

ĺ

30m (Except when combined with MFZ).

1.TH

1.TH

ĺ

-15:DB (Except when combined with MFZ)

SUZ-KA25VA.TH
SUZ-KA35VA.TH

Lower limit (Heating/Outdoor) -10:DBĺ-15:DB.

SUZ-KA35VAH.TH

Defrost finish temperature has been changed (Refer to 11).

SUZ-A09VR.TH SUZ-KA25VA.TH
SUZ-A12VR.TH SUZ-KA35VA.TH

1. Indication of capacity has been changed.(BTU base ĺ kW base)

2. Control method between indoor and outdoor unit has been changed.

3. Power supply method has been changed (change to supply from outdoor unit).

4. Terminal block for power supply has been added.

5. Power P.C.board has been changed.

6. Inverter P.C. board has been changed.

7. Refrigerant circuit has been changed.

•

Compressor has been changed.(KNB073FBVH ĺ KNB073FDVH:SUZ-KA25VA) (KNB092FAAH ĺ KNB092FCAH:SUZ-KA35VA)

• Specification and position of muffler have been changed.

• Path of outdoor heat exchanger has been changed.

• 4-way valve and R.V. coil have been changed.

• Stop valve has been changed.

8. Fan motor has been changed.(AC ĺ DC)

9. Shape of grille has been changed.

10. Shape of service panel has been changed.

11. Shape of propeller has been changed.

12. Symbol on terminal block has been changed (to S1/S2/S3).

3

SUZ-A18VR SUZ-KA50VA.TH
SUZ-A24VR SUZ-KA60VA.TH

1. Indication of capacity has been changed.(BTU base ĺ kW base)

2. Power supply method has been changed (change to supply from outdoor unit).

3. Outdoor electronic control P.C. board has been changed.

4. Noise filter P.C. board has been changed.

5. Length of fan motor lead wire has been changed.

6. Shape of relay panel has been changed.

7. Symbol on terminal block has been changed (to S1/S2/S3).

8. Control method between indoor and outdoor unit has been changed.

INFORMATION FOR THE AIR CONDITIONER WITH R410A REFRIGERANT

• This room air conditioner adopts an HFC refrigerant (R410A) which never destroys the ozone layer.

• Pay particular attention to the following points, though the basic installation procedure is same as that for R22 conditioners.
1 As R410A has working pressure approximate 1.6 times as high as that of R22, some special tools and piping parts/
materials are required. Refer to the table below.
2 Take sufficient care not to allow water and other contaminations to enter the R410A refrigerant during storage and
installation, since it is more susceptible to contaminations than R22.
3 For refrigerant piping, use clean, pressure-proof parts/materials specifically designed for R410A. (Refer to 2. Refrigerant
piping.)
4 Composition change may occur in R410A since it is a mixed refrigerant. When charging, charge liquid refrigerant to prevent
composition change.

Refrigerant
Composition (Ratio)
Refrigerant handling
Chlorine
Safety group (ASHRAE)
Molecular weight
Boiling point ()
Steam pressure [25](Mpa)
Saturated steam density [25](Kg/*)

Refrigerant

Combustibility
ODP +1
GWP +2
Refrigerant charge method
Additional charge on leakage
Kind
Color

oil

Smell

Refrigerant

+1: Ozone Depletion Potential : based on CFC-11
+2: Global Warming Potential : based on CO

2

New refrigerant

R410A

HFC-32: HFC-125 (50%:50%)

Pseudo-azeotropic refrigerant

Not included

A1/A1

72.6

-51.4

1.557
64

Non combustible

0

1730

From liquid phase in cylinder

Possible

Incompatible oil

None
None

Previous refrigerant

R22

R22 (100%)

Single refrigerant

Included

A1

86.5

-40.8

0.94

44.4

Non combustible

0.055
1700

Gas phase

Possible

Compatible oil

Light yellow

None

4

New Specification Current Specification

The incompatible refrigerant oil easily separates from
refrigerant and is in the upper layer inside the suction muffler.
Raising position of the oil back hole enables to back the
refrigerant oil of the upper layer to flow back to the
compressor.

Suction muffler

Since refrigerant and refrigerant oil are compatible with
each other, refrigerant oil backs to the compressor through
the lower position oil back hole.

Suction muffler

Compressor

Compressor

Oil back hole

Refrigerant oil

Refrigerant

Compressor

Oil back hole

Refrigerant oil /Refrigerant

NOTE : The unit of pressure has been changed to MPa on the international system of units (SI unit system).

The conversion factor is: 1 (MPa [Gauge]) =10.2 (kgf/cm2 [Gauge])

Conversion chart of refrigerant temperature and pressure

(MPa [Gauge])

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

Saturated liquid pressure

0.0

R410A

R22

NOTE: The unit of pressure has been changed to MPa on the

international system of units (SI unit system).

The conversion factor is: 1 (MPa [Gauge]) =10.2 (kgf/cm2 [Gauge])

-0.5

-30 -20 -10 0 10 20

30

40 50 60

()

1. Tools dedicated for the air conditioner with R410A refrigerant

The following tools are required for R410A refrigerant. Some R22 tools can be substituted for R410A tools.
The diameter of the service port on the stop valve in outdoor unit has been changed to prevent any other refrigerant being
charged into the unit. Cap size has been changed from 7/16 UNF with 20 threads to 1/2 UNF with 20 threads.

R410A tools

Can R22 tools be used?

R410A has high pressures beyond the measurement range of existing

Gauge manifold

No

gauges. Port diameters have been changed to prevent any other refrigerant
from being charged into the unit.

Charge hose

Gas leak detector

Torque wrench

No

No

Yes

Hose material and cap size have been changed to improve the pressure
resistance.

Dedicated for HFC refrigerant.

6.35 mm and 9.52 mm

No 12.7 mm and 15.88 mm

Flare tool

Flare gauge
Vacuum pump

adapter
Electronic scale for

refrigerant charging

Yes

New

New

New

Clamp bar hole has been enlarged to reinforce the spring strength in the tool.

Provided for flaring work (to be used with R22 flare tool).
Provided to prevent the back flow of oil. This adapter enables you to use

vacuum pumps.
It is difficult to measure R410A with a charging cylinder because the

refrigerant bubbles due to high pressure and high-speed vaporization

No: Not substitutable for R410A Yes: Substitutable for R410A

Description

5

2. Refrigerant piping

1 Specifications
Use the refrigerant pipes that meet the following specifications.

Pipe

For liquid

For gas

• Use a copper pipe or a copper-alloy seamless pipe with a thickness of 0.8 mm. Never use any pipe with a thickness less
than 0.8mm, as the pressure resistance is insufficient.
2 Flaring work and flare nut
Flaring work for R410A pipe differs from that for R22 pipe.
For details of flaring work, refer to Installation manual “FLARING WORK”.

Pipe diameter (mm)

6.35

9.52

12.7

15.88

mm mm

6.35

9.52

9.52

12.7

15.88

Wall thicknessOutside diameter

0.8

0.8

0.8

0.8

1.0

Dimension of flare nut (mm)

R410A

17
22
26
29

Insulation material

Heat resisting foam plastic
Specific gravity 0.045 Thickness
8 mm

R22

17
22
24
27

3. Refrigerant oil

Apply the special refrigerant oil (accessories: packed with indoor unit) to the flare and the union seat surfaces.

4. Air purge

Do not discharge the refrigerant into the atmosphere.
Take care not to discharge refrigerant into the atmosphere during installation, reinstallation, or repairs to the refrigerant
circuit.
Use the vacuum pump for air purging for the purpose of environmental protection.

5. Additional charge

For additional charging, charge the refrigerant from liquid phase of the gas cylinder.
If the refrigerant is charged from the gas phase, composition change may occur in the refrigerant inside the cylinder and the
outdoor unit. In this case, ability of the refrigerating cycle decreases or normal operation can be impossible. However,
charging the liquid refrigerant all at once may cause the compressor to be locked. Thus, charge the refrigerant slowly.

Union

Stop valve

Indoor unit

Refrigerant gas
cylinder
operating valve

Charge hose (for R410A)

Refrigerant gas cylinder
for R410A with siphon

Refrigerant (liquid)

Electronic scale for refrigerant charging

Liquid pipe

Gas pipe

Service port

Gauge manifold
valve (for R410A)

Outdoor unit

6

3

PART NAMES AND FUNCTIONS

SUZ-KA25VA.TH
SUZ-KA35VA.TH
SUZ-KA25VAH.TH
SUZ-KA35VAH.TH

OUTDOOR UNIT

SUZ-KA25VAR1.TH
SUZ-KA35VAR1.TH
SUZ-KA25VAHR1.TH
SUZ-KA35VAHR1.TH

Air inlet

(back and side)

Piping

Drain hose

Air outlet

Drain outlet

ACCESSORIES

Drain socket



SUZ-KA50VA.TH SUZ-KA50VA1.TH SUZ-KA50VAR2.TH
SUZ-KA60VA.TH SUZ-KA60VA
SUZ-KA71VA.TH SUZ-KA71VA

1.TH SUZ-KA60VAR2.TH

1.TH

SUZ-KA25VA.TH
SUZ-KA35VA.TH
SUZ-KA25VAR1.TH
SUZ-KA35VAR1.TH

1

OUTDOOR UNIT

Air inlet

(back and side)

Piping

Drain hose

Air outlet

Drain outlet

ACCESSORIES

Drain socket



Drain cap :33



SUZ-KA50VA
SUZ-KA60VA(1).TH
SUZ-KA71VA
SUZ-KA50VAR2.TH
SUZ-KA60VAR2.TH

(1).TH

(1).TH

1

2

77

4

SPECIFICATION

Outdoor Service Ref.

Function

Power supply

Starting current *1
Compressor motor current *1
Fan motor current *1

Electrical

data

Model
Output
Winding
resistance (at 20)

Compressor

Model

Winding

Fan

motor

resistance(at 20)

Air flow(High/Low+)

Capa-

city

Dimensions WHD
Weight
Sound level
Fan speed(High+/Low+, High+/Med+/Low+)
Fan speed regulator
Refrigerant filling

Special

remarks

capacity(R410A)
Refrigerating oil (Model)

*1

SUZ-KA25VA(H).TH

Cooling

A
A
A

KNB073FDVH(C)

W

U-V 1.53 U-W 1.53



WHT-BLK 37.5



BLK-RED 37.5

RED-WHT 37.5

*/h

2,058

mm

kg

dB

rpm

810+/650

kg

cc

Heating

Single phase

230V, 50Hz

3.65

2.74

0.31

550

V-W 1.53

RC0J50-AL

800%550%285

33

46

+

2

0.90

320 (NEO22)

3.37

0.28

1,938

880+/810+/650

3

SUZ-KA25VA(H)R1.TH

Cooling

KNB073FFDH(C)

U-V 1.70 U-W 1.70

WHT-BLK 37.0

BLK-RED 37.0

RED-WHT 37.0

2,058

+

810+/650

320 (NEO22)

Heating

Single phase

230V, 50Hz

3.65

2.74

0.31

RC0J50-DB

800%550%285

550

V-W 1.70

30
46

+

880+/810+/650

2

0.80

3.37

0.28

1,938

3

+

SUZ-KA35VA(H).TH

Cooling

KNB092FCAH

U-V 0.49 U-W 0.49

WHT-BLK 37.5

BLK-RED 37.5

RED-WHT 37.5

840+/760

320 (NEO22)

Heating

Single phase

230V, 50Hz

4.75

4.22

0.33

650

V-W 0. 49

RC0J50-AL

2,004

800%550%285

37

47

+

880+/800+/630

2

1.05

SUZ-KA35VA(H)R1.TH

Cooling

4.42

0.33
KNB092FFAH(C)

U-V 1.91 U-W 1.91

WHT-BLK 37.0

BLK-RED 37.0

RED-WHT 37.0

800%550%285

48

+

840+/760

3

320 (NEO22)

Heating

Single phase

230V, 50Hz

4.75

4.22

0.33

RC0J50-DB

47

650

V-W 1. 91

2,004

2

1.05

4.42

0.33

33

48

+

880+/800+/630

3

SUZ-KA50VA.TH

SUZ-KA50VA

Cooling

Single phase

230V, 50Hz

6.45

SNB130FLDH or SNB130FLDH1

U-V 0.45 U-W 0.45

RC0J60-AA

WHT-BLK 15.2

BLK-RED 15.2

RED-WHT 15.2

2,940/1,650

840%850%330

53/51

+

800/480

FLDH: 450/FLDH1: 600(NEO22)

Heating

6.75

6.05

0.30

850

V-W 0. 45

+

2,940/2,210

53

+

55/53

+

800/620

2

1.60

1.TH

+

+

+

NOTE : Test conditions are based on ISO 5151
Cooling : Indoor D.B. 27: W.B. 19:
Outdoor D.B. 35: W.B. 24:
Heating : Indoor D.B. 20: W.B. 15:
Outdoor D.B. 7: W.B. 6:
Refrigerant piping length (one way): 5m
*1 Measured under rated operating frequency.

w Reference value

8

Outdoor Service Ref.

SUZ-KA50VAR2.TH

SUZ-KA60VA.TH

SUZ-KA60VA

1.TH

SUZ-KA60VAR2.TH

SUZ-KA71VA.TH

SUZ-KA71VA

1.TH

Function

Power supply

Starting current *1
Compressor motor current *1
Fan motor current *1

Electrical

data

Model
Output
Winding
resistance (at 20)

Compressor

Model

Winding

Fan

motor

resistance(at 20)

Air flow(High/Low+)

Capa-

city

Dimensions WHD
Weight
Sound level

*1

Fan speed(High+/Low+, High+/Med+/Low+)

W

* /h

mm

kg

dB

rpm

Cooling

Single phase

230V, 50Hz
A
A

6.45

A

SNB130FGBH(T)

U-V 0.98 U-W 0.98



V-W 0. 98

RC0J60-AA

WHT-BLK 15.2



BLK-RED 15.2

RED-WHT 15.2

2,940/1,650

840%850%330

+

53/51

800/480

6.75

0.30

900

+

Fan speed regulator
Refrigerant filling

Special

remarks

capacity(R410A)
Refrigerating oil (Model)

kg

cc

1.60

450 (NEO22)

NOTE : Test conditions are based on ISO 5151
Cooling : Indoor D.B. 27: W.B. 19:
Outdoor D.B. 35: W.B. 24:
Heating : Indoor D.B. 20: W.B. 15:
Outdoor D.B. 7: W.B. 6:
Refrigerant piping length (one way): 5m
*1 Measured under rated operating frequency.

w Reference value

Heating

6.05

+

2,940/2,210

53

+

55/53

800/620

2

Cooling

Single phase

Heating

230V, 50Hz

Cooling

Single phase

230V, 50Hz

9.75

8.05

9.45

8.05

0.30

SNB130FLDH or SNB130FLDH1

SNB130FGBH(T)

850

U-V 0.45 U-W 0.45

V-W 0.45

RC0J60-AA

WHT-BLK 15.2

BLK-RED 15.2

RED-WHT 15.2

+

2,940/1650

+

2,940/2,210

840%850%330

U-V 0.98 U-W 0.98

V-W 0. 98

RC0J60-AA

WHT-BLK 15.2

BLK-RED 15.2

RED-WHT 15.2

+

2,940/1650

840%850%330

53

53/51

+

800/480

+

+

55/53

800/620

+

+

53/51

800/480

2

1.80

FLDH: 450/FLDH1: 600 (NEO22)

450 (NEO22)

Heating

9.75

9.45

0.30

900

+

2,940/2,210

53

+

55/53

+

800/620

2

1.80

Cooling

Heating

Single phase

230V, 50Hz

10.30

10.00

0.30

TNB220FMCH(T)

1300

U-V 1.41 U-W 1.41

V-W 1. 41

RC0J60-AA

WHT-BLK 15.2

BLK-RED 15.2

RED-WHT 15.2

+

2,940/1650

+

2,940/2,210

840%850%330

58

53/51

800/480

+

+

55/53

800/620

+

+

2

2.00

870 (NEO22)

9.60

+

+

+

99

Specifications and rating conditions of main electric parts

SUZ-KA25VA.TH SUZ-KA25VAH.TH
SUZ-KA35VA.TH SUZ-KA35VAH.TH

Item

Current transformer

Current transformer

Smoothing capacitor

Diode module

Fuse

Fuse

Defrost heater

Intelligent power module

Expansion valve coil

Reactor

Current-detecting resistor

Current-detecting resistor

Current-limiting resistor

Terminal block

Relay

Relay

Relay

R.V. coil

Heater protector

(CT761, CT781)

C63A, C63B, C63C

(

(DB61, DB65)

(F71, F801, F901)

Model

(CT)

(F61)

(IPM)

(LEV)

(L61)

(R61)

(R831)

(

R64A, R64B

(TB1,TB2)

(X63)

(X64)

(X66)

(21S4)

(26H)

SUZ-KA25VA.TH

)

(H)

)

SUZ-KA25VAH.TH SUZ-KA35VA.TH SUZ-KA35VAH.TH

ETA19Z59BZ

ETQ19Z71AY

620420V

D25×B60

250V 20A

250V 3.15A

—

45m 5W (1 element) 50m 5W (2 elements)

—

—

230V 130W

PS21244-A-203

CAD-MD12ME 12VDC

10A 23.0mH

25m 5W

5.1 5W

3P

G5NB-1a

G4A-1A-PS

G5NB-1a

STF-01AJ503

Open 45

—

—

—

230V 130W

G5NB-1a

Open 45

SUZ-KA50VA.TH SUZ-KA50VA
SUZ-KA60VA.TH SUZ-KA60VA
SUZ-KA71VA.TH SUZ-KA71VA

Item

Smoothing capacitor

Current transformer

Current transformer

Fuse

Fuse

Fuse

Intelligent power module

High pressure switch

Intelligent power module

Reactor

Expansion valve coil

Power factor controller

Resistor

Resistor

Resistor

Solenoid coil relay

Terminal block

Terminal block

Relay

R.V. coil

Model

(CB1,2,3)

(CT1,2)

(CT61)

(F64)

(F801)

(F911)

(HC930)

(HPS)

(IPM)

(L)

(LEV)

(PFC)

(R64A,B)

(R937A,B)

(RS1~4)

(SSR61)

(TB1)

(TB2)

(X64)

(21S4)

1.TH

1.TH SUZ-KA60VAR2.TH

1.TH

SUZ-KA50VA.TH

SUZ-KA50VA

1.TH

— ACB-DB156ACB-DB156 (for R2)

SUZ-KA60VA.TH

SUZ-KA60VA

SUZ-KA60VAR2.TH

560 450V

ETQ19Z68AY

ETQ19Z53AY

250V 3.15A

PS21661-RZ

PS21244-A

340ȝH 20A

PS51259-A

1.12W 2%

AC 220 - 240V

250V 2A

250V 1A

DC12V

1010W

0.04 7W

TLP3506

3P

3P

G4A

1.TH

SUZ-KA71VA.TH

SUZ-KA71VA

1.TH

10

SUZ-KA25VAR1.TH SUZ-KA25VAHR1.TH
SUZ-KA35VAR1.TH SUZ-KA35VAHR1.TH
SUZ-KA50VAR2.TH

Item
Current

transformer

Smoothing
capacitor

Diode module

Fuse

Defrost heater

Intelligent power
module

Expansion valve
coil

Current­detecting
resistor

Current-limiting
PTC thermistor

Relay

Heater protector

Model

(C61)

(C62, C63)

(DB65)

(F701, F801,

F901)

(H)

(IPM)

(R61)

(R61,R62)

(R825)

(R937, R938,

R939)

(PTC64,

PTC65)

(X63)
(X64)

(X66)

(21S4)R.V. coil

(26H)

(TR821)IGBT

SUZ-KA25VAR1.TH SUZ-KA25VAHR1.TH

——

45 mȍ 5 W

(1 element) (2 elements)

——

——

230 V

130 W

3 A 250 V

Open 45°C

SUZ-KA35VAR1.TH SUZ-KA35VAHR1.TH

20 A(CT)
15 A(CT761, CT781)

—

620 ȝF 420 V

25 A 600 V

T20AL250V(F61)

T3.15AL250V

—

15 A 600 V 20 A 600 V

DC 12 V(LEV)

23 mH(L61)Reactor

100 mȍ 5 W

—

25 mȍ 5 W

430 mȍ 2 W

—(R937A, R937B)

33 ȍ

3 P(TB1, TB2)Terminal block

3 A 250 V

20 A 250 V

—

AC 220 - 240 V

—

30 A 600 V

230 V

130 W

3 A 250 V

Open 45°C

SUZ-KA50VAR2.TH

620

ȝ

F 420 V

25 A 600 V15 A 600 V(DB61)

—

180 mȍ 5 W

(2 elements)

—

1.1 ȍ 2 W

11

5

NOISE CRITERIA CURVES

SUZ-KA25VA.TH
SUZ-KA25VAH.TH

FAN SPEED

High

Med.

Test conditions,
Cooling : Dry-bulb temperature 35Wet-bulb temperature (24)

Heating : Dry-bulb temperature 7Wet-bulb temperature 6

90

80

70

60

50

40

30

APPROXIMATE

20

THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

10

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

SUZ-KA25VAR1.TH
SUZ-KA25VAHR1.TH

FUNCTION

COOLING

HEATING

SPL(dB(A))

46

46

LINE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

SUZ-KA35VA.TH
SUZ-KA35VAH.TH

FAN SPEED

High
Med.

Test conditions,
Cooling : Dry-bulb temperature 35Wet-bulb temperature (24)

Heating : Dry-bulb temperature 7Wet-bulb temperature 6

90

80

70

60

50

40

30

APPROXIMATE

20

THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

10

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

SUZ-KA35VAR1.TH
SUZ-KA35VAHR1.TH

FUNCTION

COOLING

HEATING

SPL(dB(A))

47

48

LINE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

SUZ-KA50VA.TH SUZ-KA50VA1.TH SUZ-KA50VAR2.TH
SUZ-KA60VA.TH SUZ-KA60VA
SUZ-KA71VA.TH SUZ-KA71VA

FAN SPEED

Test conditions,
Cooling : Dry-bulb temperature 35Wet-bulb temperature (24)

Heating : Dry-bulb temperature 7Wet-bulb temperature 6

90

80

70

60

50

40

30

APPROXIMATE

20

THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

10

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

High

FUNCTION

COOLING

HEATING

1.TH SUZ-KA60VAR2.TH

1.TH

SPL(dB(A)) LINE

53

55

MICROPHONE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

OUTDOORUNIT

1m

12

6

OUTLINES AND DIMENSIONS

SUZ-KA25VA.TH SUZ-KA25VAH.TH SUZ-KA25VAR1.TH SUZ-KA25VAHR1.TH
SUZ-KA35VA.TH SUZ-KA35VAH.TH SUZ-KA35VAR1.TH SUZ-KA35VAHR1.TH

OUTDOOR UNIT

44

Air in

285

344.5

2 holes 10×21

22.3

Handle

550

280

10

150

Drain hole :42 (SUZ-KA25/KA35VA)

400

Air in

Air out

302.5

500 Bolt pitch for installation

Drain hole :33 (SUZ-KA25/KA35VAH)

800

Unit: mm

REQUIRED SPACE

100mm

or more

304~325

installation

Bolt pitch for

40

69

17.5

23

164.5

99.5
Service port

Service panel

Liquid refrigerant pipe joint
Refrigerant pipe (flared) :6.35

Gas refrigerant pipe joint
Refrigerant pipe (flared) :9.52

170.5

200mm or more

Open two sides of left,
right, or rear side.

35

43

Basically open 100mm or more
without any obstruction in front
and on both sides of the unit.

100mm or more

350mm or more

13

SUZ-KA50VA.TH SUZ-KA50VA1.TH SUZ-KA50VAR2.TH
SUZ-KA60VA.TH SUZ-KA60VA
SUZ-KA71VA.TH SUZ-KA71VA

1.TH SUZ-KA60VAR2.TH

1.TH

Unit: mm

OUTDOOR UNIT

515

299

66

51

34

330

850

430

121

500
840

Drain holes :33

40

Open as a rule

80

500mm or more if the back,
both sides and top are open

REQUIRED SPACE

100mm or more

360

155

90

198

Open as a rule
500mm or more if
the front and both
sides are open

100mm or more
200mm or more if
there are obstacles
to both sides

350mm or more

Service panel

Liquid refrigerant
pipe joint
Refrigerant pipe(flared)

:6.35·····(SUZ-KA50/KA60VA)
:9.52·····(SUZ-KA71VA)

30

35

Gas refrigerant
pipe joint
Refrigerant pipe(flared)

:12.7·····(SUZ-KA50VA)
:15.88···(SUZ-KA60/KA71VA)

14

7

WIRING DIAGRAM

SUZ-KA25VA.TH
SUZ-KA35VA.TH

OUTDOOR UNIT

MODELS WIRING DIAGRAM

W

2

V

F801

wc

RED

3

RED

N

C63C

C63B

C63A

CN61

LD-W

CT781

W

R61

V

WHT

IPM

T801

CN724

6

LEV

IC801

F901

TR821

IC932

R831

DB65

CN932

315
2

42
3

CN931

1

CN642

21213412

CN641

INVERTER P.C. BOARD

CN643

LDY

45

231

CN601

BLK

U

DB61

U

1

WHT

BLK

LD-V

LD-U

CT761

P

+++

5
42

13

GRN

MF

NOTES:1. About the indoor side electric wiring, refer to

the indoor unit electric wiring diagram for

servicing.

2. Use copper conductors only. (For field wiring)

3. Symbols below indicate.

/: Terminal block, : Connector

RT61 RT62 RT64RT65

NAME

CURRENT-DETECTING RESISTOR

CURRENT-LIMITING RESISTOR

TERMINAL BLOCK

SWITCHING POWER TRANSISTOR

TRANSFORMER

RELAY

REVERSING VALVE COIL

EXPANSION VALVE COIL

L61

BLK

BLK

TAB63

L63

L62

TAB61

WHT

F61

WHT

TB2

S1

230V~

R64AR64B

BLU

S2

LD70

X64

TAB62

RED

S3

12-24V

3

4

LD69

TB800

BLK

X63

F71

NR63

NR64

TB1

CIRCUIT BREAKER

21S4

1

DSA61

L

2

BLU

CT

CONNECTING
TO INDDOR UNIT

CN727

CN721

LDE

GRN

GRN/YLW

N

~/N

230V 50Hz

6

PE

POWER

SUPPLY

CN725

4

CN726

POWER P.C. BOARD

WHITE

BLU

RED

R61,R831

R64A,R64B

SYMBOL

NAME

SYMBOL

NAME

SYMBOL

TB1,TB2

REACTOR

CMC COIL

COMPRESSOR

L61

L62,L63MCMF

CURRENT TRANSFORMER

SMOOTHING CAPACITOR

DIODE MODULE

CT,CT761,CT781

C63A,C63B,C63C

DB61,DB65

TR821

T801

X63,X64

21S4

LEV

OUTDOOR FAN MOTOR

VAR ISTO R

DEFROST THERMISTOR

DISCHARGE TEMPERATURE THERMISTOR

FIN TEMPERATURE THERMISTOR

AMBIENT TEMPERATURE THERMISTOR

NR63,NR64

RT61

RT62

RT64

RT65

SURGE ABSORBER

FUSE (T20AL250V)

FUSE (T3.15AL250V)

FUSE (T3.15AL250V)

INTELLIGENT POWER DEVICE

INTELLIGENT POWER MODULE

DSA61

F61

F71

F801,F901

IC801

IPM,IC932

1515

SUZ-KA25VAR1.TH
SUZ-KA35VAR1.TH

OUTDOOR UNIT

NOTES:1. About the indoor side electric wiring, refer to

the indoor unit electric wiring diagram for

servicing.

2. Use copper conductors only. (For field wiring)

3. Symbols below indicate.

: Terminal block

16

SUZ-KA25VAH.TH
SUZ-KA35VAH.TH

OUTDOOR UNIT

MODELS WIRING DIAGRAM

U

V

BLK

DB61

1

WHT

BLK

LD-V

LD-U

CT761

U

P

+++

W

RED

2

V

F801

MC

3

RED

N

C63C

C63B

C63A

CN61

LD-W

CT781

W

R61

WHT

IPM

T801

CN724

6

LEV

F901

IC801

TR821

IC932

INVERTER P.C. BOARD

R831

LDY

DB65

CN932

3
212 4
1

5

3

CN931

431212

CN641 CN642

21

CN643

23145

CN601

5

3

12 4

MF

RT65 RT64RT62RT61

GRN

NOTES:1. About the indoor side electric wiring, refer to

the indoor unit electric wiring diagram for

servicing.

2. Use copper conductors only. (For field wiring)

3. Symbols below indicate.

/: Terminal block, : Connector

NAME

CURRENT-LIMITING RESISTOR

TERMINAL BLOCK

SWITCHING POWER TRANSISTOR

TRANSFORMER

RELAY

REVERSING VALVE COIL

DEFROST HEATER

HEATER PROTECTOR

L61

BLK

BLK

TAB63

L63

L62

TAB61

WHT

F61

WHT

TB2

S1

~

230V

R64A

R64B

BLU

S2

LD70

X64

TAB62

RED

S3

12-24V

3

4

LD69

TB800

BLK

BLU

21S4

1

2

X63

CT

F71

DSA61

NR64 NR63

GRN

TB1

L

N

CONNECTING
TO INDDOR UNIT

CIRCUIT BREAKER

~/N

230V 50Hz

6

CN721

CN727

LDE

GRN/YLW

POWER

SUPPLY

CN725

4

CN726

X66

POWER P.C. BOARD

CN722

RED

1

2

BLKBLK

BLK BLK

PE

312

YLW

26H

BLK

H

1

BLK

BLK

2

WHITE

BLU

RED

SYMBOL

R64A,R64B

TB1,TB2

TR821

NAME

REACTOR

CMC COIL

COMPRESSOR

SYMBOL

L61

L62,L63MCMF

NAME

CURRENT TRANSFORMER

SMOOTHING CAPACITOR

DIODE MODULE

SYMBOL

CT,CT761,CT781

C63A,C63B,C63C

DB61,DB65

T801

X63,X64,X66

21S4H26H

OUTDOOR FAN MOTOR

VAR ISTO R

DEFROST THERMISTOR

DISCHARGE TEMPERATURE THERMISTOR

FIN TEMPERATURE THERMISTOR

AMBIENT TEMPERATURE THERMISTOR

NR63,NR64

RT61

RT62

RT64

RT65

SURGE ABSORBER

FUSE (T20AL250V)

FUSE (T3.15AL250V)

FUSE (T3.15AL250V)

INTELLIGENT POWER DEVICE

INTELLIGENT POWER MODULE

DSA61

F61

F71

F801,F901

IC801

IPM,IC932

CURRENT-DETECTING RESISTOR

R61,R831

EXPANSION VALVE COIL

LEV

17

SUZ-KA25VAHR1.TH
SUZ-KA35VAHR1.TH

OUTDOOR UNIT

NOTES:1. About the indoor side electric wiring, refer to

the indoor unit electric wiring diagram for

servicing.

2. Use copper conductors only. (For field wiring)

3. Symbols below indicate.

: Terminal block

18

SUZ-KA50VA.TH SUZ-KA50VA1.TH
SUZ-KA60VA.TH SUZ-KA60VA1.TH

OUTDOOR UNIT

MODELS WIRING DIAGRAM

RED

W

CT2

PFC

R

RED

1

L

2

RED

3X64

TAB 1

BRN

TB1

CIRCUIT

BREAKER

POWER SUPPLY

~/N 230V 50Hz

S

F64

W

CB3

CB2

CB1

YLW

4

3

TAB 4

R64B

R64A

NF

BLU

L

V

V

IPM

BLK

YLW

NR64

MC

CN5

21

BLK

N

U

BLK

WHT

U

CT1

RS3

RS1

27

BLK

21

CN903

CT61

TAB 2

PE

21

CN902

SSR61

F911

GRN/YLW

21

RS4

RS2

CN2

CN901

CN61

CN3

CN4

6543 1

5123

12

CN912

LDE2

LDE1

13

NOISE

FILTER

P.C.BOARD

RT64

POWER

BOARD

LD9

LD1LD2

12

BLU
BLU

GRN

WHT

RED

BLK
BLK

BLK
BLK
BLK

BLK

BLK

BLK
BLK
BLK

21S4

GRN

GRN

BLU
WHT

TO INDOOR

UNIT

CONNECTING

BLU

ORN

PNK

GRY

CN931

CN801

13

12

CN701

CN702

1567

5321

CN661

CN781

CN663

ELECTRONIC

CONTROL

P.C.BOARD

CN601

1

3

BLU

WHT

TB2

230V~

S1

S2

MF

YLW

F801

T801

CN7954123 78

21

5

RED

S3

12-24V

WHT

RED

R937A

6

BLK

231 34512

CN932

HC930

R937B

LEV

RT61 RT62 RT68

RT65

diagram for servicing.

refer to the indoor unit electric wiring

1. About the indoor side electric wiring,NOTES:

NAME

FIN TEMPERATURE THERMISTOR

RT64

SYMBOL

NAME

COMPRESSOR

MC

SYMBOL

NAME

SMOOTHING CAPACITOR

:Terminal block :Connector

3. Symbols below indicate.

2. Use copper conductors only (for field wiring).

TERMINAL BLOCK

TERMINAL BLOCK

TRANSFORMER

SOLENOID COIL RELAY

AMBIENT TEMPERATURE THERMISTOR

OUTDOOR HEAT EXCHANGER

TEMPERATURE THERMISTOR

RT65

OUTDOOR FAN MOTOR

MF

CURRENT TRANSFORMER

T801

RT68

SSR61

VAR ISTOR

NOISE FILTER

POWER FACTOR CONTROLLER

RESISTOR

NF

PFC

NR64

R64A,B

CURRENT TRANSFORMER

FUSE (T2AL 250V)

FUSE (T1AL 250V)

FUSE (T3.15AL 250V)

REVERSING VALVE COIL

RELAY

X64

TB1

TB2

21S4

DEFROST THERMISTOR

DISCHARGE TEMPERATURE THERMISTOR

RESISTOR

RESISTOR

RT62

RT61

RS1~4

R937A, B

EXPANSION VALVE COIL

INTELLIGENT POWER MODULE

REACTOR

INTELLIGENT POWER MODULE

19

CT1, 2

CB1~3

SYMBOL

F64

CT61

F911

F801

IPM

HC930

L

LEV

SUZ-KA50VAR2.TH

OUTDOOR UNIT

BLK

TB1

S3S1S2

RED

CONNECTING
UNIT
TO INDOOR

230V~

BLU

BRN

~/N 230V 50Hz
POWER SUPPLY

BREAKER

TB2

BRN

BLU

12-24V

CIRCUIT

L

N

GRN/YLW

L61

ORN YLW

21S4

CN721

2

1

X63

LD66LD70

X64

C61

C62C63

F701

IC802

T801

LD-E1

PTC64

LD63

F801

PTC65

CT

R937B

R937A

R61

DSA

L62

U

INVERTER P.C. BOARD

HC930

F901

LD-S

LD62

U

U

LD61

6

CN724

1
4

CN641CN643CN644CN642

1
2

1
3

1
2

1

1

3

CN932

5

CN931

1

F61

BRN

diagram for servicing.

refer to the indoor unit electric wiring

2. Use copper conductors only (for field wiring).

1. About the indoor side electric wiring,NOTES:

3. Symbols below indicate.

6

:Terminal block

M

LEV

NAME

RT62

RT61

RT65

CURRENT-DETECTING RESISTOR

CURRENT-DETECTING RESISTOR

R61

R825

SYMBOL

CURRENT-DETECTING RESISTOR

TERMINAL BLOCK

SWITCHING POWER TRANSISTOR

TR821

TB1,TB52

R937A, B

TRANSFORMER

REVERSING VALVE COIL

RELAY

T801

21S4

X63,X64

RT68

RT64

NAME

3

MF

MS

3~

5

EXPANSION VALVE COIL

FAN MOTOR

COMPRESSOR

MF

MC

LEV

SYMBOL

DEFROST THERMISTOR

CIRCUIT PROTECTION

DISCHARGE TEMP. THERMISTOR

AMBIENT TEMP. THERMISTOR

FIN TEMP. THERMISTOR

RT65

RT64

RT62

RT61

PTC64,PTC65

OUTDOOR HEAT EXCHANGER

TEMP. THERMISTOR

RT68

DB61

DB65

R825

N

W

TR821

RED

3

3

RED

W

V

LDW

WHT

WHT

V

MS

LDV

BLKBLK

3~

P

U

LDU

1

1

U

MC

IPM

20

NAME

DIODE MODULE

SMOOTHING CAPACITOR

CURRENT TRANSFORMER

CT

SYMBOL

FUSE (T20AL 250V)

SURGE ABSORBER

F61

DSA

C61,62,63

DB61,DB65

FUSE (T3.15AL 250V)

REACTOR

INTELLIGENT POWER DEVICE

INTELLIGENT POWER MODULE

REACTOR

L61

L62

IC802

HC930,IPM

F701,F801,F901

SUZ-KA60VAR2.TH

OUTDOOR UNIT

:Terminal block

diagram for servicing.

refer to the indoor unit electric wiring

3. Symbols below indicate.

2. Use copper conductors only (for field wiring).

1. About the indoor side electric wiringNOTES:

NAME

RESISTOR

AMBIENT TEMP. THERMISTOR

OUTDOOR HEAT EXCHANGER TEMP. THERMISTOR

RT68

RT65

SYMBOL

R64A,B

NAME

EXPANSION VALVE

COMPRESSOR

FAN MOTOR

MF

MC

LEV

SYMBOL

NAME

TRANSFORMER

TERMINAL BLOCK

TERMINAL BLOCK

RESISTOR

SOLENOID COIL RELAY

TB1

TB2

T801

SSR61

R937A, B

VAR ISTOR

NOISE FILTER

NF

DEFROST THERMISTOR

POWER FACTOR CONTROLLER

RESISTOR

PFC

RT61

NR64

RS1~4

REVERSING VALVE COIL

RELAY

X64

21S4

DISCHARGE TEMP. THERMISTOR

FIN TEMP. THERMISTOR

RT64

RT62

21

CURRENT TRANSFORMER

CURRENT TRANSFORMER

SMOOTHING CAPACITOR

CT61

CT1, 2

CB1~3

SYMBOL

FUSE (T2AL 250V)

FUSE (T1AL 250V)

INTELLIGENT POWER MODULE

FUSE (T3.15AL 250V)

F64

F911

F801

HC930

HIGH PRESSURE SWITCH

REACTOR

INTELLIGENT POWER MODULE

L

IPM

HPS

SUZ-KA71VA.TH SUZ-KA71VA1.TH

OUTDOOR UNIT

MODEL WIRING DIAGRAM

RED

W

CT2

PFC

R

RED

1

L

2

RED

X64 3

TAB1

BRN

TB1

CIRCUIT

BREAKER

POWER SUPPLY

~/N 230V 50Hz

S

F64

W

CB3

CB2

CB1

YLW

4

3

TAB4

R64A R64B

NF

BLU

L

MC

V

V

IPM

BLK

YLW

NR64

N

CN5

21

BLK

12

CT61

TAB 2

PE

U

BLK

WHT

U

CT1

RS1 RS3

27

BLK

12

CN903

SSR61

F911

GRN/YLW

21

RS4

RS2

CN2

CN902

CN901

CN61

NOISE

RT64

CN3

POWER

BOARD

LD9

LD1LD2

12

CN4

6543 1

5123

12

CN912

LDE2

LDE1

13

FILTER

P.C.BOARD

BLU
BLU

GRN

GRN

TO INDOOR

GRN

GRY

WHT

RED

13

BLK

12

BLK

BLK
BLK
BLK

BLK

1567

5321

BLK

BLK
BLK
BLK

21S4

ELECTRONIC

1

WHT

BLU
WHT

TB2

230V~

UNIT

CONNECTING

MF

YLW

BLU

ORN

PNK

CN931

CN801

F801

CN701

CN702

CN661

CN781

CN663

CONTROL

P.C.BOARD

CN681

CN601

3

RED

BLU

S2

S1

12-24V

RED

T801

CN7954123 78

21

12

5

S3

BLK

WHT

23134512

HC930

R937A

6

RED

CN932

LEV

RED

HPS

R937B

RT61 RT62 RT68

RT65

diagram for servicing.

refer to the indoor unit electric wiring

1. About the indoor side electric wiring,NOTES:

NAME

AMBIENT TEMPERATURE THERMISTOR

RT65

SYMBOL

NAME

COMPRESSOR

MC

SYMBOL

NAME

:Terminal block :Connector

3. Symbols below indicate.

2. Use copper conductors only (for field wiring).

TERMINAL BLOCK

TERMINAL BLOCK

TRANSFORMER

SOLENOID COIL RELAY

OUTDOOR HEAT EXCHANGER

TEMPERATURE THERMISTOR

T801

RT68

SSR61

OUTDOOR FAN MOTOR

POWER FACTOR CONTROLLER

NOISE FILTER

VAR ISTOR

NF

MF

PFC

NR64

TB1

TB2

RESISTOR

R64A,B RESISTOR

R937A, B

REVERSING VALVE COIL

RELAY

X64

21S4

RESISTOR

DEFROST THERMISTOR

RT61

RS1~4

DISCHARGE TEMPERATURE THERMISTOR

RT62

FIN TEMPERATURE THERMISTOR

RT64

22

CURRENT TRANSFORMER

SMOOTHING CAPACITORCB1~3

CURRENT TRANSFORMER

FUSE (T2AL 250V)

F64

CT61

CT1, 2

SYMBOL

HIGH PRESSURE SWITCH

FUSE (T1AL 250V)

INTELLIGENT POWER MODULE

FUSE (T3.15AL 250V)

F911

F801

HC930

EXPANSION VALVE COIL

REACTOR

INTELLIGENT POWER MODULE

L

IPM

LEV

HPS

8

REFRIGERANT SYSTEM DIAGRAM

SUZ-KA25VA.TH
SUZ-KA25VAH.TH

OUTDOOR UNIT

Refrigerant pipe :9.52
(with heat insulator)

Flared connection

Flared connection

Refrigerant pipe :6.35
(with heat insulator)

Muffler

Stop valve
(with service port)

Capillary tube
:3.0×:2.0×240

Stop valve
(with strainer)

4-way valve

Discharge
temperature
thermistor
RT62

LEV

Muffler

Compressor

Defrost
thermistor
RT61

Muffler

Outdoor
heat
exchanger

Ambient
temperature
thermistor
RT65

Strainer
#100

R.V. coil
heating ON
cooling OFF

Refrigerant flow in cooling
Refrigerant flow in heating

Unit: mm

SUZ-KA25VAR1.TH
SUZ-KA25VAHR1.TH

OUTDOOR UNIT

Refrigerant pipe ø9.52
(with heat insulator)

Flared connection

Flared connection

Refrigerant pipe ø6.35
(with heat insulator)

Muffler

Stop valve
(with service port)

Capillary tube
ø3.0×ø2.0×240

Stop valve
(with strainer)

4-way valve

Discharge
temperature
thermistor
RT62

LEV

Muffler

Compressor

Defrost
thermistor
RT61

Outdoor heat
exchanger

temperature
Outdoor
heat
exchanger

Refrigerant flow in cooling
Refrigerant flow in heating

thermistor

RT68

Ambient
temperature
thermistor
RT65

Strainer
#100

R.V. coil
heating ON
cooling OFF

Unit: mm

2323

SUZ-KA35VA.TH
SUZ-KA35VAH.TH

OUTDOOR UNIT

Unit: mm

Refrigerant pipe :9.52
(with heat insulator)

Flared connection

Flared connection

Refrigerant pipe :6.35
(with heat insulator)

Muffler

Stop valve
(with service port)

Muffler

Stop valve
(with strainer)

4-way valve

Discharge
temperature
thermistor
RT62

LEV

Muffler

Compressor

Defrost
thermistor
RT61

Capillary tube
:3.0×:1.8×600(×2)

Refrigerant flow in cooling
Refrigerant flow in heating

Outdoor
heat
exchanger

Strainer
#100

R.V. coil
heating ON
cooling OFF

Ambient
temperature
thermistor
RT65

SUZ-KA35VAR1.TH
SUZ-KA35VAHR1.TH

OUTDOOR UNIT

Refrigerant pipe ø9.52
(with heat insulator)

Flared connection

Flared connection

Refrigerant pipe ø6.35
(with heat insulator)

Muffler

Stop valve
(with service port)

Capillary tube
ø3.0×ø2.0×240

Stop valve
(with strainer)

4-way valve

Discharge
temperature
thermistor
RT62

LEV

Muffler

Compressor

Defrost
thermistor
RT61

Capillary tube
ø3.0×ø1.8×600(×2)

Refrigerant flow in cooling
Refrigerant flow in heating

Outdoor
heat
exchanger

Strainer
#100

R.V. coil
heating ON
cooling OFF

Outdoor heat
exchanger
temperature
thermistor
RT68

Ambient
temperature
thermistor
RT65

Unit: mm

24

SUZ-KA50VA.TH SUZ-KA50VA1.TH
SUZ-KA60VA.TH SUZ-KA60VA1.TH

OUTDOOR UNIT

Refrigerant pipe :12.7 (SUZ-KA50VA)
(with heat insulator) :15.88 (SUZ-KA60VA)

Stop valve
(with service port)

Flared connection

Flared connection

Receiver

Stop valve

Refrigerant pipe :6.35
(with heat insulator)

4-way valve

Strainer

#100

Capillary tube
:3.6

Muffler

#100

Discharge
temperature
thermistor
RT62

Compressor

×:2.4×50

LEV

Defrost
thermistor
RT61

Strainer

#100

Outdoor
heat
exchanger

Outdoor heat
exchanger
temperature
thermistor
RT68

Ambient
temperature
thermistor
RT65

R.V. coil
heating ON
cooling OFF

Refrigerant flow in cooling
Refrigerant flow in heating

Unit: mm

SUZ-KA50VAR2.TH

OUTDOOR UNIT

Refrigerant pipe ø12.7
(with heat insulator)

Flared connection

Flared connection

Refrigerant pipe ø6.35
(with heat insulator)

4-way valve

Stop valve
(with service port)

Receiver

Stop valve
(with strainer)

Muffler

#100

Discharge
temperature
thermistor
RT62

Compressor

Capillary tube
ø3.6×ø2.4×50

LEV

Strainer

#100

Outdoor
heat

Defrost
thermistor
RT61

exchanger

Outdoor heat
exchanger
temperature
thermistor
RT68

R.V. coil
heating ON
cooling OFF

Refrigerant flow in cooling
Refrigerant flow in heating

Ambient
temperature
thermistor
RT65

Unit: mm

25

SUZ-KA60VAR2.TH

OUTDOOR UNIT

Unit:mm

Refrigerant pipe :15.88
(with heat insulator)

Flared connection

Flared connection

Refrigerant pipe :6.35
(with heat insulator)

4-way valve

Stop valve
(with service port)

Receiver

Stop valve

Strainer

#100

Capillary tube
:3.6:2.450

Muffler

#100

Discharge
temperature
thermistor
RT62

Compressor

LEV

High-pressure
switch

Defrost
thermistor
RT61

Strainer

#100

Refrigerant flow in cooling
Refrigerant flow in heating

Outdoor
heat
exchanger

Outdoor heat
exchanger
temperature
thermistor
RT68

R.V. coil
heating ON
cooling OFF

Ambient
temperature
thermistor
RT65

SUZ-KA71VA.TH SUZ-KA71VA1.TH

OUTDOOR UNIT

Refrigerant pipe :15.88
(with heat insulator)

Stop valve
(with service port)

Flared connection

Flared connection

Receiver

Stop valve

Refrigerant pipe :9.52
(with heat insulator)

Capillary tube
:1.8

×:0.6×1000

4-way valve

Strainer

#100

Oil separator

Compressor

Capillary tube
:3.6×:2.4×50

High-pressure
switch

Strainer

#100

Discharge
temperature
thermistor
RT62

LEV

Strainer

#100

Defrost
thermistor
RT61

Outdoor
heat
exchanger

Outdoor
heat
exchanger
temperature
thermistor
RT68

R.V. coil
heating ON
cooling OFF

Refrigerant flow in cooling
Refrigerant flow in heating

Unit:mm

Ambient
temperature
thermistor
RT65

26

SUZ-KA25VA.TH SUZ-KA25VAH.TH SUZ-KA25VAR1.TH SUZ-KA25VAHR1.TH
SUZ-KA35VA.TH SUZ-KA35VAH.TH SUZ-KA35VAR1.TH SUZ-KA35VAHR1.TH

MAX. REFRIGERANT PIPING LENGTH

Models

SUZ-KA25VA.TH
SUZ-KA35VA.TH
SUZ-KA25VAH.TH
SUZ-KA35VAH.TH
SUZ-KA25VAR1.TH
SUZ-KA35VAR1.TH
SUZ-KA25VAHR1.TH
SUZ-KA35VAHR1.TH

MAX. HEIGHT DIFFERENCE

Indoor
unit

+ Max. Height
difference 12m

(SLZ/SEZ)

Refrigerant piping

Max. length: m

A

20

Refrigerant Piping
Max. length
A

Piping size O.D: mm

Gas

9.52

Liquid

6.35

+ Height difference should be within 12m regardless of which unit, indoor or outdoor position is high.

ADDITIONAL REFRIGERANT CHARGE (R410A: g)

Models

SUZ-KA25VA.TH
SUZ-KA25VAH.TH

SUZ-KA25VAR1.TH
SUZ-KA25VAHR1.TH

SUZ-KA35VA.TH
SUZ-KA35VAH.TH
SUZ-KA35VAR1.TH
SUZ-KA35VAHR1.TH

Outdoor unit

precharged

900

800

1,050

5m

0

0

6m

0

0

Refrigerant piping length (one way)

7m

8m

0

90

0

90

Calculation : Xg=30g/m%(Refrigerant piping length(m) - 5)

9m

120

120

Outdoor unit

11m

10m

180

150

180

150

12m

210

210

13m

240

240

14m

270

270

15m

300

300

20m

450

450

27

SUZ-KA50VA.TH SUZ-KA50VA1.TH SUZ-KA50VAR2.TH
SUZ-KA60VA.TH SUZ-KA60VA
SUZ-KA71VA.TH SUZ-KA71VA

1.TH SUZ-KA60VAR2.TH

1.TH

MAX. REFRIGERANT PIPING LENGTH

Model

SUZ-KA50VA.TH

SUZ-KA50VA

1.TH

SUZ-KA50VAR2.TH

SUZ-KA60VA.TH

SUZ-KA60VA

1.TH

SUZ-KA60VAR2.TH

SUZ-KA71VA.TH

SUZ-KA71VA

1.TH

MAX. HEIGHT DIFFERENCE

Indoor
unit

+ Max. Height
difference 30m

Refrigerant piping

Max. length: m

A

30

(SLZ/SEZ)

Piping size O.D: mm

Gas

12.7

15.88

Refrigerant Piping
Max. length
A

Liquid

6.35

9.52

Outdoor unit

+ Height difference should be within 30m regardless of which unit, indoor or outdoor position is high.
Max. Height difference of SUZ-KA50/60/71VA.TH : 15m

SUZ-KA50/60/71VA
SUZ-KA50/60VAR2.TH : 30m

ADDITIONAL REFRIGERANT CHARGE(R410A: g)

Model

SUZ-KA50VA.TH

SUZ-KA50VA

1.TH

SUZ-KA50VAR2.TH

SUZ-KA60VA.TH

SUZ-KA60VA

1.TH

SUZ-KA60VAR2.TH

Model

SUZ-KA71VA.TH
SUZ-KA71VA

1.TH

Outdoor unit

precharged

1,600

1,800

Outdoor unit

precharged

2,000

7m

0

0

0 165 440 715 990 1,265

Refrigerant piping length (one way)

10m

60

60

Refrigerant piping length (one way)

1.TH : 30m

15m

160

160

20m

260

260

25m

360

360

30m

460

460

Calculation : Xg=20g/m o (Refrigerant piping length(m)–7)

15m10m7m

20m

25m 30m

Calculation : Xg=55g/m o (Refrigerant piping length(m)-7)

28

9

PERFORMANCE CURVES

Model

SLZ-KA25VA(L)/SUZ-KA25VA
SLZ-KA35VA(L)/SUZ-KA35VA
SLZ-KA50VA(L)/SUZ-KA50VA

The standard data contained in these specifications applies only to the operation of the air conditioner under normal condition.
Operating conditions vary according to the areas where these units are installed. The following information has been provided
to clarify the operating characteristics of the air conditioner under the conditions indicated by the performance curve.

(1) GUARANTEED VOLTAGE

Rated voltage: ±10% (207~253V), 50Hz

(2) AIR FLOW

Air flow should be set at MAX.

(3) MAIN READINGS

COOLING HEATING
(1) Indoor intake air wet-bulb temperature: W.B. ˚C (1) Indoor intake air dry-bulb temperature: D.B. ˚C
(2) Indoor outlet air wet-bulb temperature: W.B. ˚C (2) Indoor outlet air dry-bulb temperature: D.B. ˚C
(3) Outdoor intake air dry-bulb temperature: D.B. ˚C (3) Outdoor intake air wet-bulb temperature: W.B. ˚C
(4) Total input: W (4) Total input: W

Indoor air wet/dry-bulb temperature difference on the side of the chart on page shows the difference between the

indoor intake air wet/dry-bulb temperature and the indoor outlet air wet/dry-bulb temperature for your reference at service.

How to measure the indoor air wet-bulb/dry-bulb temperature difference

1. Attach at least 2 sets of wet-and-dry-bulb thermometers to the indoor air inlet as shown in the figure, and at least 2 sets of
wet-and-dry-bulb thermometers to the indoor air outlet. The thermometers must be attached to the position where air speed
is high.

2. Attach at least 2 sets of wet-and-dry-bulb thermometers to the outdoor air inlet.

Cover the thermometers to prevent direct rays of the sun.

3. Check that the air filter is cleaned.

4. Open windows and doors of the room.

5. Press the EMERGENCY OPERATION switch once to start the EMERGENCY COOL (HEAT) MODE.

6. When system stabilizes after more than 15 minutes, measure temperature and take an average temperature.

7. 10 minutes later, measure temperature again and check that the temperature does not change.

INDOOR UNIT

OUTDOOR UNIT

Wet-and dry-bulb
thermometers

BACK VIEW

2929

6.4

5.9

5.4

5.0

4.5

difference (degree)

4.1

Indoor air Wet-bulb temperature

SUZ-KA25VA(H)

at Rated frequency

Indoor intake air Wet-bulb
temperature()

-10-5 0 5 101520253035404546

-10-5 0 5 101520253035404546

Indoor intake air Wet-bulb temperature(

Outdoor intake air Dry-bulb temperature () Outdoor intake air Dry-bulb temperature ()



)

8.4

7.8

7.2

6.6

6.0

difference (degree)

5.4

Indoor air Wet-bulb temperature

SUZ-KA35VA(H)

at Rated frequency

10.8

10.0

9.2

8.5

7.7

difference (degree)

6.9

Indoor air Wet-bulb temperature

Indoor intake air Wet-bulb
temperature()

-10-5 0 5 101520253035404546

Outdoor intake air Dry-bulb temperature ()

Indoor intake air Wet-bulb
temperature()

-10-15 -5 0 5 101520253035404546

Outdoor intake air Dry-bulb temperature ()

Indoor intake air Wet-bulb temperature(

-10-5 0 5 101520253035404546



)

Outdoor intake air Dry-bulb temperature ()

Indoor intake air Wet-bulb temperature(

-15-10-5 0 5 101520253035404546



)

Outdoor intake air Dry-bulb temperature ()

SUZ-KA50VA

at Rated frequency

30

23.9

20.8

19.2

17.6

16.0

14.4

12.8

difference (degree)

11.2

9.6

Indoor air Dry-bulb temperature

22.1

20.2

18.4

16.5

14.7

12.9

11.0

28.2

26.0

23.9

21.7

19.5

17.4

15.2

13.0

Indoor intake air Dry-bulb temperature (

)

Indoor intake air Dry-bulb temperature (

)

Outdoor intake air Wet-bulb temperature ()

SUZ-KA25VA(H)

at Rated frequency

SUZ-KA25VA(H)

Correction of Cooling capacity

1.5

1.0

0.5

Capacity correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

SUZ-KA35VA(H) SUZ-KA35VA(H) SUZ-KA35VA(H) SUZ-KA35VA(H)

Correction of Cooling capacity

1.5

1.0

0.5

Capacity correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

SUZ-KA50VA

SUZ-KA35VA(H)

at Rated frequency

at Rated frequency

SUZ-KA25VA(H) SUZ-KA25VA(H) SUZ-KA25VA(H)

Correction of Cooling total input

2.0

1.5

1.0

0.5

Input correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

Correction of Cooling total input

1.5

1.0

0.5

Input correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

NOTE: The above curves are for the heating operation without any frost.

Correction of Heating capacity

2.0

1.5

1.0

0.5

Capacity correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

Correction of Heating capacity

2.0

1.5

1.0

0.5

Capacity correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

Outdoor intake air Wet-bulb temperature ()

Correction of Heating total input

2.0

1.5

1.0

0.5

Input correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

Correction of

2.0

1.5

1.0

0.5

Input correction factors

0.0

0 50 100 150(Hz)

The operational frequency of compressor

Heating total input

SUZ-KA50VA SUZ-KA50VA SUZ-KA50VA SUZ-KA50VA

Correction of Cooling capacity

1.5

1.0

0.5

Capacity correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

Correction of Cooling total input

1.5

1.0

0.5

Input correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

Correction of Heating capacity

2.0

1.5

1.0

0.5

Capacity correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

Correction of

2.5

2.0

1.5

1.0

0.5

Input correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

Heating total input

OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT

<How to operate fixed-frequency operation (Test run operation)>

1. Press the EMERGENCY OPERATION switch or the Test button to COOL or HEAT mode.

2. Test run operation starts and continues to operate for 30 minutes.

3. Compressor starts at rated frequency in COOL mode or 58Hz in HEAT mode.

4. Indoor fan operates at High speed.

5. After 30 minutes, test run operation finishes and EMERGENCY OPERATION starts.

6. To cancel test run operation (EMERGENCY OPERATION), press the EMERGENCY OPERATION switch or the ON/OFF
button on remote controller.

NOTE : The unit of pressure has been changed to MPa on the international system of units (SI unit system).

2

The conversion factor is: 1 (MPa [Gauge]) =10.2 (kgf/cm

[Gauge])

31

OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT
COOL operation

1 Both indoor and outdoor units are under the
same temperature/humidity condition.

2 Air flow : High speed
3 Operation: TEST RUN OPERATION

Dry-bulb temperature

20

25

30

Relative humidity(%)

50

60

70

(kgf/% [Gauge])

14

12

10

8

6

Outdoor low pressure

4

2

Ambient temperature(°C) Ambient humidity(%)

(MPa [Gauge])

1.4

1.2

1.0

0.8

0.6

0.4

0.2
15 2050256030

18 32

70 (%)

SUZ-KA25VA(H)

4

3.5

3

2.5

Outdoor unit current(A)

SUZ-KA25VA(H)

2

15 205025

18

Ambient temperature(°C) Ambient humidity(%)

60

30

35(°C)

32

70 (%)

35(°C)

SUZ-KA35VA(H)

(kgf/% [Gauge])

14

12

10

8

6

Outdoor low pressure

4

2

Ambient temperature(°C) Ambient humidity(%)

(MPa [Gauge])

1.4

1.2

1.0

0.8

0.6

0.4

0.2
15 2050256030

18 32

70 (%)

SUZ-KA35VA(H)

5

4.5

4

3.5

Outdoor unit current(A)

3

15 2050256030

18

Ambient temperature(°C) Ambient humidity(%)

35(°C)

32

70 (%)

35(°C)

SUZ-KA50VA

(kgf/% [Gauge])

14

12

10

8

6

Outdoor low pressure

4

2

Ambient temperature(°C) Ambient humidity(%)

(MPa [Gauge])

1.4

1.2

1.0

0.8

0.6

0.4

0.2
15 2050256030

18 32

70 (%)

SUZ-KA50VA

9.0

8.0

7.0

6.0

Outdoor unit current(A)

5.0
15 2050256030

18

Ambient temperature(°C) Ambient humidity(%)

35(°C)

32

70 (%)

35(°C)

HEAT operation

Condition indoor: Dry bulb temperature 20.0°C
Wet bulb temperature 14.5°C
Condition outdoor: Dry bulb temperature 2,7,15,20.0°C
Wet bulb temperature 1,6,12,14.5°C

SUZ-KA25VA(H)

3.0

2.5

2.0

1.5

1.0

0.5

Outdoor unit current (A)

0.0
2

5 10 15 20 25()

Ambient temperature(°C)

SUZ-KA35VA(H)

4.0

3.5

3.0

2.5

2.0

1.5

Outdoor unit current (A)

1.0
2

5 10 15 20 25()

Ambient temperature(°C)

32

SUZ-KA50VA

7.0

6.0

5.0

4.0

3.0

2.0

Outdoor unit current (A)

1.0
2

5 10 15 20 25()

Ambient temperature(°C)

Model

SEZ-KC25VA/SUZ-KA25VA
SEZ-KA35VA/SUZ-KA35VA
SEZ-KA50VA/SUZ-KA50VA
SEZ-KA60VA/SUZ-KA60VA
SEZ-KA71VA/SUZ-KA71VA

The standard data contained in these specifications applies only to the operation of the air conditioner under normal condition.
Operating conditions vary according to the areas where these units are installed. The following information has been provided
to clarify the operating characteristics of the air conditioner under the conditions indicated by the performance curve.

(1) GUARANTEED VOLTAGE

Rated voltage: ±10% (207~253V), 50Hz

(2) AIR FLOW

Air flow should be set at MAX.

(3) MAIN READINGS

COOLING HEATING
(1) Indoor intake air wet-bulb temperature: W.B.˚C (1) Indoor intake air dry-bulb temperature: D.B.˚C
(2) Indoor outlet air wet-bulb temperature: W.B.˚C (2) Indoor outlet air dry-bulb temperature: D.B.˚C
(3) Outdoor intake air dry-bulb temperature: D.B.˚C (3) Outdoor intake air wet-bulb temperature: W.B.˚C
(4) Total input: W (4) Total input: W

Indoor air wet/dry-bulb temperature difference on the side of the chart on page shows the difference between the

indoor intake air wet/dry-bulb temperature and the indoor outlet air wet/dry-bulb temperature for your reference at service.

How to measure the indoor air wet-bulb/dry-bulb temperature difference

1. Attach at least 2 sets of wet-and-dry-bulb thermometers to the indoor air inlet as shown in the figure, and at least 2 sets of
wet-and-dry-bulb thermometers to the indoor air outlet. The thermometers must be attached to the position where air speed

is high.

2. Attach at least 2 sets of wet-and-dry-bulb thermometers to the outdoor air inlet.

Cover the thermometers to prevent direct rays of the sun.

3. Check that the air filter is cleaned.

4. Open windows and doors of the room.

5. Press the TEST button twice to start the COOL (HEAT) MODE.

6. When system stabilizes after more than 15 minutes, measure temperature and take an average temperature.

7. 10 minutes later, measure temperature again and check that the temperature does not change.

INDOOR UNIT

Air outlet

Wet-and dry-bulb
thermometers

OUTDOOR UNIT

Air inlet

w The picture is SEZ-KA35, 50, 60, 71VA.
SEZ-KC25VA is similar to SEZ-KA35, 50, 60, 71VA.

Wet-and dry-bulb
thermometers

BACK VIEW

33

8.4

7.8

7.2

6.6

6.0

difference (degree)

5.4

Indoor air Wet-bulb temperature

SUZ-KA25VA(H)

at Rated frequency

Indoor intake air Wet-bulb
temperature()

-10-5 0 5 101520253035404546

-10-5 0 5 101520253035404546

Indoor intake air Wet-bulb temperature(

Outdoor intake air Dry-bulb temperature () Outdoor intake air Dry-bulb temperature ()



)

7.9

7.3

6.7

6.2

5.6

difference (degree)

5.1

Indoor air Wet-bulb temperature

SUZ-KA35VA(H)

at Rated frequency

8.4

8.6

7.8

8.0

7.2

7.4

6.6

6.8

6.0

5.4

6.2

5.5

difference (degree)

Indoor air Wet-bulb temperature

Indoor intake air Wet-bulb
temperature()

-10-5 0 5 101520253035404546

Outdoor intake air Dry-bulb temperature ()

10.5

9.6

8.8

7.9

7.1

6.3

-10-15 -5 0 5 101520253035404546

Outdoor intake air Dry-bulb temperature ()

-10-5 0 5 101520253035404546

Outdoor intake air Dry-bulb temperature ()

Indoor intake air Wet-bulb
temperature()

Indoor intake air Wet-bulb temperature(

-15-10-5 0 5 101520253035404546



)

Indoor intake air Wet-bulb temperature(



)

Outdoor intake air Dry-bulb temperature ()

SUZ-KA50VA

SUZ-KA60VA

at Rated frequency

at Rated frequency

SUZ-KA71VA

at Rated frequency

34

25.2

22.7

24.5

23.2

20.9

22.6

21.3

19.2

20.7

19.4

17.4

18.9

17.4

15.7

17.0

15.5

14.0

15.1

difference (degree)

13.6

12.2

13.2

11.6

10.5

Indoor air Dry-bulb temperature

11.3

25.3

23.3

21.4

19.4

17.5

15.5

13.6

11.7

Heating capacity

Indoor intake air Dry-bulb temperature ()

Total input (heating)

intake air Dry-

Indoor

)

bulb temperature (

SUZ-KA25VA(H)

SUZ-KA35VA(H)

at Rated frequency

at Rated frequency

Outdoor intake air Wet-bulb temperature ()

SUZ-KA50VA

SUZ-KA60VA

at Rated frequency

at Rated frequency

25.3

23.3

21.4

19.4

17.5

15.5

difference (degree)

13.6

11.7

Indoor air Dry-bulb temperature

Outdoor intake air Wet-bulb temperature ()

SUZ-KA71VA

at Rated frequency

Heating capacity

Indoor intake air Dry-bulb temperature ()

NOTE: The above curves are for the heating operation without any frost.

Outdoor intake air Wet-bulb temperature ()

Total input (heating)

)

Indoor intake air Dry-bulb temperature (

Outdoor intake air Wet-bulb temperature ()

35

SUZ-KA25VA(H)

Correction of Cooling capacity

1.5

SUZ-KA25VA(H) SUZ-KA25VA(H) SUZ-KA25VA(H)

Correction of Cooling total input

2.0

Correction of Heating capacity

2.0

Correction of

2.0

Heating total input

1.0

0.5

Capacity correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

SUZ-KA35VA(H)

Correction of Cooling capacity

1.5

1.0

0.5

Capacity correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

SUZ-KA50VA

Correction of Cooling capacity

1.5

1.0

0.5

Capacity correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

1.5

1.0

0.5

Input correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

SUZ-KA35VA(H) SUZ-KA35VA(H) SUZ-KA35VA(H)

Correction of Cooling total input

1.5

1.0

0.5

Input correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

SUZ-KA50VA SUZ-KA50VA SUZ-KA50VA

Correction of Cooling total input

1.5

1.0

0.5

Input correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

1.5

1.0

0.5

Capacity correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

Correction of Heating capacity

2.0

1.5

1.0

0.5

Capacity correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

Correction of Heating capacity

2.0

1.5

1.0

0.5

Capacity correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

1.5

1.0

0.5

Input correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

Correction of

2.0

1.5

1.0

0.5

Input correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

Correction of

2.0

1.5

1.0

0.5

Input correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

Heating total input

Heating total input

SUZ-KA60VA

Correction of Cooling capacity

1.5

1.0

0.5

Capacity correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

SUZ-KA71VA

Correction of Cooling capacity

1.5

1.0

0.5

Capacity correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

SUZ-KA60VA SUZ-KA60VA SUZ-KA60VA

Correction of Cooling total input

1.5

1.0

0.5

Input correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

SUZ-KA71VA SUZ-KA71VA SUZ-KA71VA

Correction of Cooling total input

1.5

1.0

0.5

Input correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

Correction of Heating capacity

2.0

1.5

1.0

0.5

Capacity correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

Correction of Heating capacity

2.0

1.5

1.0

0.5

Capacity correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

Correction of

2.0

1.5

1.0

0.5

Input correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

Correction of

2.0

1.5

1.0

0.5

Input correction factors

0.0
0 50 100 150(Hz)

The operational frequency of compressor

Heating total input

Heating total input

36

OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT

<How to operate fixed-frequency operation (Test run operation)>

1. Press the TEST button to COOL or HEAT mode.

2. Test run operation starts and continues to operate for 30 minutes.

3. Compressor starts at rated frequency in COOL mode or 58Hz in HEAT mode.

4. Indoor fan operates at High speed.

5. After 30 minutes, test run operation finishes and EMERGENCY OPERATION starts.

6. To cancel test run operation (EMERGENCY OPERATION), press the ON/OFF button on remote controller.

NOTE : The unit of pressure has been changed to MPa on the international system of units (SI unit system).

2

The conversion factor is: 1 (MPa [Gauge]) =10.2 (kgf/cm

[Gauge])

OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT
COOL operation

1 Both indoor and outdoor units are under the
same temperature/humidity condition.

2 Air flow : High speed
3 Operation: TEST RUN OPERATION

Dry-bulb temperature

20

25

30

Relative humidity(%)

50

60

70

(kgf/% [Gauge])

14

12

10

8

6

Outdoor low pressure

4

2

Ambient temperature(°C) Ambient humidity(%)

(MPa [Gauge])

1.4

1.2

1.0

0.8

0.6

0.4

0.2
15 2050256030

18 32

70 (%)

SUZ-KA71VA

SUZ-KA25VA(H)

(kgf/% [Gauge])

14

12

10

8

6

Outdoor low pressure

4

2

Ambient temperature(°C) Ambient humidity(%)

3.5

(MPa [Gauge])

1.4

1.2

1.0

0.8

0.6

0.4

0.2
15 2050256030

18 32

SUZ-KA25VA(H)

4

3

70 (%)

(kgf/% [Gauge])

14

12

10

8

6

Outdoor low pressure

4

2

35(°C)

Ambient temperature(°C) Ambient humidity(%)

35(°C)

(MPa [Gauge])

1.4

1.2

1.0

0.8

0.6

0.4

0.2
15 2050256030

18 32

SUZ-KA35VA(H)

5

4.5

4

SUZ-KA35VA(H)

35(°C)

70 (%)

(kgf/% [Gauge])

14

12

10

8

6

Outdoor low pressure

4

2

Ambient temperature(°C) Ambient humidity(%)

(MPa [Gauge])

1.4

1.2

1.0

0.8

0.6

0.4

0.2
15 2050256030

18 32

SUZ-KA50VA

10

9

8

70 (%)

SUZ-KA50VA

SUZ-KA60VA

35(°C)

(kgf/% [Gauge])

14

12

10

Outdoor low pressure

(MPa [Gauge])

1.4

1.2

1.0

0.8

8

0.6

6

0.4

4

2

0.2
15 2050256030

18 32

Ambient temperature(°C) Ambient humidity(%)

SUZ-KA60VA

12

10

8

35(°C)

70 (%)

2.5

Outdoor unit current(A)

2

15 205025

18

Ambient temperature(°C) Ambient humidity(%)

SUZ-KA71VA

12

10

8

6

Outdoor unit current(A)

4

15 205025

18

Ambient temperature(°C) Ambient humidity(%)

60

60

30

35(°C)

32

70 (%)

30

35(°C)

32

70 (%)

3.5

Outdoor unit current(A)

3

15 205025

18

Ambient temperature(°C) Ambient humidity(%)

60

30

35(°C)

32

70 (%)

37

7

Outdoor unit current(A)

6

15 205025

18

Ambient temperature(°C) Ambient humidity(%)

60

30

35(°C)

32

70 (%)

6

Outdoor unit current(A)

4

15 205025

18

Ambient temperature(°C) Ambient humidity(%)

60

30

35(°C)

32

70 (%)

HEAT operation

)

Condition indoor: Dry bulb temperature 20.0°C
Wet bulb temperature 14.5°C
Condition outdoor: Dry bulb temperature 2,7,15,20.0°C
Wet bulb temperature 1,6,12,14.5°C

SUZ-KA25VA(H)

4.0

3.5

3.0

2.5

2.0

1.5

Outdoor unit current (A)

1.0
2

5 10 15 20 25()

Ambient temperature(°C)

SUZ-KA71VA

13.0

12.0

11. 0

10.0

9.0

8.0

Outdoor unit current (A)

7.0

2

5 10 15 20 25()

Ambient temperature(°C)

SUZ-KA35VA(H)

4.0

3.5

3.0

2.5

2.0

1.5

Outdoor unit current (A)

1.0
2

5 10 15 20 25()

Ambient temperature(°C)

SUZ-KA50VA

7.0

6.0

5.0

4.0

3.0

2.0

Outdoor unit current (A)

1.0
2

5 10 15 20 25()

Ambient temperature(°C)

SUZ-KA60VA

7.0

6.0

5.0

4.0

3.0

2.0

Outdoor unit current (A)

1.0
2

5 10 15 20 25(

Ambient temperature(°C)

38

PERFORMANCE DATA
COOLING operation at Rated frequency
SLZ-KA25VA(L)/SUZ-KA25VA(H)

CAPACITY : 2.5(kW) INPUT : 690(W) SHF : 0.86

OUTDOOR D.B.()

INDOOR INDOOR

D.B.() W.B.()

21
21
22
22
22
23
23
23
24
24
24
24
25
25
25
26
26
26
26
26
27
27
27
27
27
28
28
28
28
28
29
29
29
29
29
30
30
30
30
30
31
31
31
31
31
32
32
32
32
32

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature
SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB : Wet-bulb temperature

18
20
18
20
22
18
20
22
18
20
22
24
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

2.94 2.00 0.68 552 2.81 1.91 0.68 580 2.70 1.84 0.68 607 2.60 1.77 0.68 635

3.06 1.72 0.56 580 2.94 1.65 0.56 614 2.85 1.60 0.56 628 2.75 1.54 0.56 656

2.94 2.12 0.72 552 2.81 2.03 0.72 580 2.70 1.94 0.72 607 2.60 1.87 0.72 635

3.06 1.84 0.60 580 2.94 1.76 0.60 614 2.85 1.71 0.60 628 2.75 1.65 0.60 656

3.19 1.53 0.48 600 3.08 1.48 0.48 638 3.00 1.44 0.48 656 2.88 1.38 0.48 683

2.94 2.23 0.76 552 2.81 2.14 0.76 580 2.70 2.05 0.76 607 2.60 1.98 0.76 635

3.06 1.96 0.64 580 2.94 1.88 0.64 614 2.85 1.82 0.64 628 2.75 1.76 0.64 656

3.19 1.66 0.52 600 3.08 1.60 0.52 638 3.00 1.56 0.52 656 2.88 1.50 0.52 683

2.94 2.35 0.80 552 2.81 2.25 0.80 580 2.70 2.16 0.80 607 2.60 2.08 0.80 635

3.06 2.08 0.68 580 2.94 2.00 0.68 614 2.85 1.94 0.68 628 2.75 1.87 0.68 656

3.19 1.79 0.56 600 3.08 1.72 0.56 638 3.00 1.68 0.56 656 2.88 1.61 0.56 683

3.35 1.47 0.44 628 3.23 1.42 0.44 662 3.15 1.39 0.44 683 3.05 1.34 0.44 718

3.06 2.21 0.72 580 2.94 2.12 0.72 614 2.85 2.05 0.72 628 2.75 1.98 0.72 656

3.19 1.91 0.60 600 3.08 1.85 0.60 638 3.00 1.80 0.60 656 2.88 1.73 0.60 683

3.35 1.61 0.48 628 3.23 1.55 0.48 662 3.15 1.51 0.48 683 3.05 1.46 0.48 718

2.94 2.59 0.88 552 2.81 2.48 0.88 580 2.70 2.38 0.88 607 2.60 2.29 0.88 635

3.06 2.33 0.76 580 2.94 2.23 0.76 614 2.85 2.17 0.76 628 2.75 2.09 0.76 656

3.19 2.04 0.64 600 3.08 1.97 0.64 638 3.00 1.92 0.64 656 2.88 1.84 0.64 683

3.35 1.74 0.52 628 3.23 1.68 0.52 662 3.15 1.64 0.52 683 3.05 1.59 0.52 718

3.45 1.38 0.40 662 3.35 1.34 0.40 697 3.30 1.32 0.40 718 3.20 1.28 0.40 738

2.94 2.70 0.92 552 2.81 2.59 0.92 580 2.70 2.48 0.92 607 2.60 2.39 0.92 635

3.06 2.45 0.80 580 2.94 2.35 0.80 614 2.85 2.28 0.80 628 2.75 2.20 0.80 656

3.19 2.17 0.68 600 3.08 2.09 0.68 638 3.00 2.04 0.68 656 2.88 1.96 0.68 683

3.35 1.88 0.56 628 3.23 1.81 0.56 662 3.15 1.76 0.56 683 3.05 1.71 0.56 718

3.45 1.52 0.44 662 3.35 1.47 0.44 697 3.30 1.45 0.44 718 3.20 1.41 0.44 738

2.94 2.82 0.96 552 2.81 2.70 0.96 580 2.70 2.59 0.96 607 2.60 2.50 0.96 635

3.06 2.57 0.84 580 2.94 2.47 0.84 614 2.85 2.39 0.84 628 2.75 2.31 0.84 656

3.19 2.30 0.72 600 3.08 2.21 0.72 638 3.00 2.16 0.72 656 2.88 2.07 0.72 683

3.35 2.01 0.60 628 3.23 1.94 0.60 662 3.15 1.89 0.60 683 3.05 1.83 0.60 718

3.45 1.66 0.48 662 3.35 1.61 0.48 697 3.30 1.58 0.48 718 3.20 1.54 0.48 738

2.94 2.94 1.00 552 2.81 2.81 1.00 580 2.70 2.70 1.00 607 2.60 2.60 1.00 635

3.06 2.70 0.88 580 2.94 2.59 0.88 614 2.85 2.51 0.88 628 2.75 2.42 0.88 656

3.19 2.42 0.76 600 3.08 2.34 0.76 638 3.00 2.28 0.76 656 2.88 2.19 0.76 683

3.35 2.14 0.64 628 3.23 2.06 0.64 662 3.15 2.02 0.64 683 3.05 1.95 0.64 718

3.45 1.79 0.52 662 3.35 1.74 0.52 697 3.30 1.72 0.52 718 3.20 1.66 0.52 738

2.94 2.94 1.00 552 2.81 2.81 1.00 580 2.70 2.70 1.00 607 2.60 2.60 1.00 635

3.06 2.82 0.92 580 2.94 2.70 0.92 614 2.85 2.62 0.92 628 2.75 2.53 0.92 656

3.19 2.55 0.80 600 3.08 2.46 0.80 638 3.00 2.40 0.80 656 2.88 2.30 0.80 683

3.35 2.28 0.68 628 3.23 2.19 0.68 662 3.15 2.14 0.68 683 3.05 2.07 0.68 718

3.45 1.93 0.56 662 3.35 1.88 0.56 697 3.30 1.85 0.56 718 3.20 1.79 0.56 738

2.94 2.94 1.00 552 2.81 2.81 1.00 580 2.70 2.70 1.00 607 2.60 2.60 1.00 635

3.06 2.94 0.96 580 2.94 2.82 0.96 614 2.85 2.74 0.96 628 2.75 2.64 0.96 656

3.19 2.68 0.84 600 3.08 2.58 0.84 638 3.00 2.52 0.84 656 2.88 2.42 0.84 683

3.35 2.41 0.72 628 3.23 2.32 0.72 662 3.15 2.27 0.72 683 3.05 2.20 0.72 718

3.45 2.07 0.60 662 3.35 2.01 0.60 697 3.30 1.98 0.60 718 3.20 1.92 0.60 738

2.94 2.94 1.00 552 2.81 2.81 1.00 580 2.70 2.70 1.00 607 2.60 2.60 1.00 635

3.06 3.06 1.00 580 2.94 2.94 1.00 614 2.85 2.85 1.00 628 2.75 2.75 1.00 656

3.19 2.81 0.88 600 3.08 2.71 0.88 638 3.00 2.64 0.88 656 2.88 2.53 0.88 683

3.35 2.55 0.76 628 3.23 2.45 0.76 662 3.15 2.39 0.76 683 3.05 2.32 0.76 718

3.45 2.21 0.64 662 3.35 2.14 0.64 697 3.30 2.11 0.64 718 3.20 2.05 0.64 738

21 25 27 30

39

PERFORMANCE DATA
COOLING operation at Rated frequency
SLZ-KA25VA(L)/SUZ-KA25VA(H)

CAPACITY : 2.5(kW) INPUT : 690(W) SHF : 0.86

OUTDOOR D.B.()

INDOOR INDOOR

D.B.() W.B.()

21
21
22
22
22
23
23
23
24
24
24
24
25
25
25
26
26
26
26
26
27
27
27
27
27
28
28
28
28
28
29
29
29
29
29
30
30
30
30
30
31
31
31
31
31
32
32
32
32
32

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature
SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB : Wet-bulb temperature

18
20
18
20
22
18
20
22
18
20
22
24
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

2.45 1.67 0.68 676 2.25 1.53 0.68 718 2.08 1.41 0.68 745

2.58 1.44 0.56 704 2.40 1.34 0.56 738 2.23 1.25 0.56 780

2.45 1.76 0.72 676 2.25 1.62 0.72 718 2.08 1.49 0.72 745

2.58 1.55 0.60 704 2.40 1.44 0.60 738 2.23 1.34 0.60 780

2.73 1.31 0.48 731 2.55 1.22 0.48 773 2.38 1.14 0.48 800

2.45 1.86 0.76 676 2.25 1.71 0.76 718 2.08 1.58 0.76 745

2.58 1.65 0.64 704 2.40 1.54 0.64 738 2.23 1.42 0.64 780

2.73 1.42 0.52 731 2.55 1.33 0.52 773 2.38 1.24 0.52 800

2.45 1.96 0.80 676 2.25 1.80 0.80 718 2.08 1.66 0.80 745

2.58 1.75 0.68 704 2.40 1.63 0.68 738 2.23 1.51 0.68 780

2.73 1.53 0.56 731 2.55 1.43 0.56 773 2.38 1.33 0.56 800

2.88 1.27 0.44 759 2.70 1.19 0.44 794 2.55 1.12 0.44 828

2.58 1.85 0.72 704 2.40 1.73 0.72 738 2.23 1.60 0.72 780

2.73 1.64 0.60 731 2.55 1.53 0.60 773 2.38 1.43 0.60 800

2.88 1.38 0.48 759 2.70 1.30 0.48 794 2.55 1.22 0.48 828

2.45 2.16 0.88 676 2.25 1.98 0.88 718 2.08 1.83 0.88 745

2.58 1.96 0.76 704 2.40 1.82 0.76 738 2.23 1.69 0.76 780

2.73 1.74 0.64 731 2.55 1.63 0.64 773 2.38 1.52 0.64 800

2.88 1.50 0.52 759 2.70 1.40 0.52 794 2.55 1.33 0.52 828

3.03 1.21 0.40 787 2.85 1.14 0.40 821 2.68 1.07 0.40 856

2.45 2.25 0.92 676 2.25 2.07 0.92 718 2.08 1.91 0.92 745

2.58 2.06 0.80 704 2.40 1.92 0.80 738 2.23 1.78 0.80 780

2.73 1.85 0.68 731 2.55 1.73 0.68 773 2.38 1.62 0.68 800

2.88 1.61 0.56 759 2.70 1.51 0.56 794 2.55 1.43 0.56 828

3.03 1.33 0.44 787 2.85 1.25 0.44 821 2.68 1.18 0.44 856

2.45 2.35 0.96 676 2.25 2.16 0.96 718 2.08 1.99 0.96 745

2.58 2.16 0.84 704 2.40 2.02 0.84 738 2.23 1.87 0.84 780

2.73 1.96 0.72 731 2.55 1.84 0.72 773 2.38 1.71 0.72 800

2.88 1.73 0.60 759 2.70 1.62 0.60 794 2.55 1.53 0.60 828

3.03 1.45 0.48 787 2.85 1.37 0.48 821 2.68 1.28 0.48 856

2.45 2.45 1.00 676 2.25 2.25 1.00 718 2.08 2.08 1.00 745

2.58 2.27 0.88 704 2.40 2.11 0.88 738 2.23 1.96 0.88 780

2.73 2.07 0.76 731 2.55 1.94 0.76 773 2.38 1.81 0.76 800

2.88 1.84 0.64 759 2.70 1.73 0.64 794 2.55 1.63 0.64 828

3.03 1.57 0.52 787 2.85 1.48 0.52 821 2.68 1.39 0.52 856

2.45 2.45 1.00 676 2.25 2.25 1.00 718 2.08 2.08 1.00 745

2.58 2.37 0.92 704 2.40 2.21 0.92 738 2.23 2.05 0.92 780

2.73 2.18 0.80 731 2.55 2.04 0.80 773 2.38 1.90 0.80 800

2.88 1.96 0.68 759 2.70 1.84 0.68 794 2.55 1.73 0.68 828

3.03 1.69 0.56 787 2.85 1.60 0.56 821 2.68 1.50 0.56 856

2.45 2.45 1.00 676 2.25 2.25 1.00 718 2.08 2.08 1.00 745

2.58 2.47 0.96 704 2.40 2.30 0.96 738 2.23 2.14 0.96 780

2.73 2.29 0.84 731 2.55 2.14 0.84 773 2.38 2.00 0.84 800

2.88 2.07 0.72 759 2.70 1.94 0.72 794 2.55 1.84 0.72 828

3.03 1.82 0.60 787 2.85 1.71 0.60 821 2.68 1.61 0.60 856

2.45 2.45 1.00 676 2.25 2.25 1.00 718 2.08 2.08 1.00 745

2.58 2.58 1.00 704 2.40 2.40 1.00 738 2.23 2.23 1.00 780

2.73 2.40 0.88 731 2.55 2.24 0.88 773 2.38 2.09 0.88 800

2.88 2.19 0.76 759 2.70 2.05 0.76 794 2.55 1.94 0.76 828

3.03 1.94 0.64 787 2.85 1.82 0.64 821 2.68 1.71 0.64 856

35 40 46

40

PERFORMANCE DATA
COOLING operation at Rated frequency
SLZ-KA35VA(L)/SUZ-KA35VA(H)

CAPACITY : 3.5(kW) INPUT : 1060(W) SHF : 0.77

OUTDOOR D.B.()

INDOOR INDOOR

D.B.() W.B.()

21
21
22
22
22
23
23
23
24
24
24
24
25
25
25
26
26
26
26
26
27
27
27
27
27
28
28
28
28
28
29
29
29
29
29
30
30
30
30
30
31
31
31
31
31
32
32
32
32
32

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature
SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB : Wet-bulb temperature

18
20
18
20
22
18
20
22
18
20
22
24
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

4.11 2.43 0.59 848 3.94 2.32 0.59 890 3.78 2.23 0.59 933 3.64 2.15 0.59 975

4.29 2.02 0.47 890 4.11 1.93 0.47 943 3.99 1.88 0.47 965 3.85 1.81 0.47 1007

4.11 2.59 0.63 848 3.94 2.48 0.63 890 3.78 2.38 0.63 933 3.64 2.29 0.63 975

4.29 2.19 0.51 890 4.11 2.10 0.51 943 3.99 2.03 0.51 965 3.85 1.96 0.51 1007

4.46 1.74 0.39 922 4.31 1.68 0.39 981 4.20 1.64 0.39 1007 4.03 1.57 0.39 1049

4.11 2.76 0.67 848 3.94 2.64 0.67 890 3.78 2.53 0.67 933 3.64 2.44 0.67 975

4.29 2.36 0.55 890 4.11 2.26 0.55 943 3.99 2.19 0.55 965 3.85 2.12 0.55 1007

4.46 1.92 0.43 922 4.31 1.85 0.43 981 4.20 1.81 0.43 1007 4.03 1.73 0.43 1049

4.11 2.92 0.71 848 3.94 2.80 0.71 890 3.78 2.68 0.71 933 3.64 2.58 0.71 975

4.29 2.53 0.59 890 4.11 2.43 0.59 943 3.99 2.35 0.59 965 3.85 2.27 0.59 1007

4.46 2.10 0.47 922 4.31 2.02 0.47 981 4.20 1.97 0.47 1007 4.03 1.89 0.47 1049

4.69 1.64 0.35 965 4.52 1.58 0.35 1018 4.41 1.54 0.35 1049 4.27 1.49 0.35 1102

4.29 2.70 0.63 890 4.11 2.59 0.63 943 3.99 2.51 0.63 965 3.85 2.43 0.63 1007

4.46 2.28 0.51 922 4.31 2.20 0.51 981 4.20 2.14 0.51 1007 4.03 2.05 0.51 1049

4.69 1.83 0.39 965 4.52 1.76 0.39 1018 4.41 1.72 0.39 1049 4.27 1.67 0.39 1102

4.11 3.25 0.79 848 3.94 3.11 0.79 890 3.78 2.99 0.79 933 3.64 2.88 0.79 975

4.29 2.87 0.67 890 4.11 2.76 0.67 943 3.99 2.67 0.67 965 3.85 2.58 0.67 1007

4.46 2.45 0.55 922 4.31 2.37 0.55 981 4.20 2.31 0.55 1007 4.03 2.21 0.55 1049

4.69 2.02 0.43 965 4.52 1.94 0.43 1018 4.41 1.90 0.43 1049 4.27 1.84 0.43 1102

4.83 1.50 0.31 1018 4.69 1.45 0.31 1071 4.62 1.43 0.31 1102 4.48 1.39 0.31 1134

4.11 3.41 0.83 848 3.94 3.27 0.83 890 3.78 3.14 0.83 933 3.64 3.02 0.83 975

4.29 3.04 0.71 890 4.11 2.92 0.71 943 3.99 2.83 0.71 965 3.85 2.73 0.71 1007

4.46 2.63 0.59 922 4.31 2.54 0.59 981 4.20 2.48 0.59 1007 4.03 2.37 0.59 1049

4.69 2.20 0.47 965 4.52 2.12 0.47 1018 4.41 2.07 0.47 1049 4.27 2.01 0.47 1102

4.83 1.69 0.35 1018 4.69 1.64 0.35 1071 4.62 1.62 0.35 1102 4.48 1.57 0.35 1134

4.11 3.58 0.87 848 3.94 3.43 0.87 890 3.78 3.29 0.87 933 3.64 3.17 0.87 975

4.29 3.22 0.75 890 4.11 3.08 0.75 943 3.99 2.99 0.75 965 3.85 2.89 0.75 1007

4.46 2.81 0.63 922 4.31 2.71 0.63 981 4.20 2.65 0.63 1007 4.03 2.54 0.63 1049

4.69 2.39 0.51 965 4.52 2.30 0.51 1018 4.41 2.25 0.51 1049 4.27 2.18 0.51 1102

4.83 1.88 0.39 1018 4.69 1.83 0.39 1071 4.62 1.80 0.39 1102 4.48 1.75 0.39 1134

4.11 3.74 0.91 848 3.94 3.58 0.91 890 3.78 3.44 0.91 933 3.64 3.31 0.91 975

4.29 3.39 0.79 890 4.11 3.25 0.79 943 3.99 3.15 0.79 965 3.85 3.04 0.79 1007

4.46 2.99 0.67 922 4.31 2.88 0.67 981 4.20 2.81 0.67 1007 4.03 2.70 0.67 1049

4.69 2.58 0.55 965 4.52 2.48 0.55 1018 4.41 2.43 0.55 1049 4.27 2.35 0.55 1102

4.83 2.08 0.43 1018 4.69 2.02 0.43 1071 4.62 1.99 0.43 1102 4.48 1.93 0.43 1134

4.11 3.91 0.95 848 3.94 3.74 0.95 890 3.78 3.59 0.95 933 3.64 3.46 0.95 975

4.29 3.56 0.83 890 4.11 3.41 0.83 943 3.99 3.31 0.83 965 3.85 3.20 0.83 1007

4.46 3.17 0.71 922 4.31 3.06 0.71 981 4.20 2.98 0.71 1007 4.03 2.86 0.71 1049

4.69 2.77 0.59 965 4.52 2.66 0.59 1018 4.41 2.60 0.59 1049 4.27 2.52 0.59 1102

4.83 2.27 0.47 1018 4.69 2.20 0.47 1071 4.62 2.17 0.47 1102 4.48 2.11 0.47 1134

4.11 4.07 0.99 848 3.94 3.90 0.99 890 3.78 3.74 0.99 933 3.64 3.60 0.99 975

4.29 3.73 0.87 890 4.11 3.58 0.87 943 3.99 3.47 0.87 965 3.85 3.35 0.87 1007

4.46 3.35 0.75 922 4.31 3.23 0.75 981 4.20 3.15 0.75 1007 4.03 3.02 0.75 1049

4.69 2.95 0.63 965 4.52 2.84 0.63 1018 4.41 2.78 0.63 1049 4.27 2.69 0.63 1102

4.83 2.46 0.51 1018 4.69 2.39 0.51 1071 4.62 2.36 0.51 1102 4.48 2.28 0.51 1134

4.11 4.11 1.00 848 3.94 3.94 1.00 890 3.78 3.78 1.00 933 3.64 3.64 1.00 975

4.29 3.90 0.91 890 4.11 3.74 0.91 943 3.99 3.63 0.91 965 3.85 3.50 0.91 1007

4.46 3.53 0.79 922 4.31 3.40 0.79 981 4.20 3.32 0.79 1007 4.03 3.18 0.79 1049

4.69 3.14 0.67 965 4.52 3.03 0.67 1018 4.41 2.95 0.67 1049 4.27 2.86 0.67 1102

4.83 2.66 0.55 1018 4.69 2.58 0.55 1071 4.62 2.54 0.55 1102 4.48 2.46 0.55 1134

21 25 27 30

41

PERFORMANCE DATA
COOLING operation at Rated frequency
SLZ-KA35VA(L)/SUZ-KA35VA(H)

CAPACITY : 3.5(kW) INPUT : 1060(W) SHF : 0.77

OUTDOOR D.B.()

INDOOR INDOOR

D.B.() W.B.()

21
21
22
22
22
23
23
23
24
24
24
24
25
25
25
26
26
26
26
26
27
27
27
27
27
28
28
28
28
28
29
29
29
29
29
30
30
30
30
30
31
31
31
31
31
32
32
32
32
32

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature
SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB : Wet-bulb temperature

18
20
18
20
22
18
20
22
18
20
22
24
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

3.43 2.02 0.59 1039 3.15 1.86 0.59 1102 2.91 1.71 0.59 1145

3.61 1.69 0.47 1081 3.36 1.58 0.47 1134 3.12 1.46 0.47 1198

3.43 2.16 0.63 1039 3.15 1.98 0.63 1102 2.91 1.83 0.63 1145

3.61 1.84 0.51 1081 3.36 1.71 0.51 1134 3.12 1.59 0.51 1198

3.82 1.49 0.39 1124 3.57 1.39 0.39 1187 3.33 1.30 0.39 1230

3.43 2.30 0.67 1039 3.15 2.11 0.67 1102 2.91 1.95 0.67 1145

3.61 1.98 0.55 1081 3.36 1.85 0.55 1134 3.12 1.71 0.55 1198

3.82 1.64 0.43 1124 3.57 1.54 0.43 1187 3.33 1.43 0.43 1230

3.43 2.44 0.71 1039 3.15 2.24 0.71 1102 2.91 2.06 0.71 1145

3.61 2.13 0.59 1081 3.36 1.98 0.59 1134 3.12 1.84 0.59 1198

3.82 1.79 0.47 1124 3.57 1.68 0.47 1187 3.33 1.56 0.47 1230

4.03 1.41 0.35 1166 3.78 1.32 0.35 1219 3.57 1.25 0.35 1272

3.61 2.27 0.63 1081 3.36 2.12 0.63 1134 3.12 1.96 0.63 1198

3.82 1.95 0.51 1124 3.57 1.82 0.51 1187 3.33 1.70 0.51 1230

4.03 1.57 0.39 1166 3.78 1.47 0.39 1219 3.57 1.39 0.39 1272

3.43 2.71 0.79 1039 3.15 2.49 0.79 1102 2.91 2.29 0.79 1145

3.61 2.42 0.67 1081 3.36 2.25 0.67 1134 3.12 2.09 0.67 1198

3.82 2.10 0.55 1124 3.57 1.96 0.55 1187 3.33 1.83 0.55 1230

4.03 1.73 0.43 1166 3.78 1.63 0.43 1219 3.57 1.54 0.43 1272

4.24 1.31 0.31 1208 3.99 1.24 0.31 1261 3.75 1.16 0.31 1314

3.43 2.85 0.83 1039 3.15 2.61 0.83 1102 2.91 2.41 0.83 1145

3.61 2.56 0.71 1081 3.36 2.39 0.71 1134 3.12 2.21 0.71 1198

3.82 2.25 0.59 1124 3.57 2.11 0.59 1187 3.33 1.96 0.59 1230

4.03 1.89 0.47 1166 3.78 1.78 0.47 1219 3.57 1.68 0.47 1272

4.24 1.48 0.35 1208 3.99 1.40 0.35 1261 3.75 1.31 0.35 1314

3.43 2.98 0.87 1039 3.15 2.74 0.87 1102 2.91 2.53 0.87 1145

3.61 2.70 0.75 1081 3.36 2.52 0.75 1134 3.12 2.34 0.75 1198

3.82 2.40 0.63 1124 3.57 2.25 0.63 1187 3.33 2.09 0.63 1230

4.03 2.05 0.51 1166 3.78 1.93 0.51 1219 3.57 1.82 0.51 1272

4.24 1.65 0.39 1208 3.99 1.56 0.39 1261 3.75 1.46 0.39 1314

3.43 3.12 0.91 1039 3.15 2.87 0.91 1102 2.91 2.64 0.91 1145

3.61 2.85 0.79 1081 3.36 2.65 0.79 1134 3.12 2.46 0.79 1198

3.82 2.56 0.67 1124 3.57 2.39 0.67 1187 3.33 2.23 0.67 1230

4.03 2.21 0.55 1166 3.78 2.08 0.55 1219 3.57 1.96 0.55 1272

4.24 1.82 0.43 1208 3.99 1.72 0.43 1261 3.75 1.61 0.43 1314

3.43 3.26 0.95 1039 3.15 2.99 0.95 1102 2.91 2.76 0.95 1145

3.61 2.99 0.83 1081 3.36 2.79 0.83 1134 3.12 2.59 0.83 1198

3.82 2.71 0.71 1124 3.57 2.53 0.71 1187 3.33 2.36 0.71 1230

4.03 2.37 0.59 1166 3.78 2.23 0.59 1219 3.57 2.11 0.59 1272

4.24 1.99 0.47 1208 3.99 1.88 0.47 1261 3.75 1.76 0.47 1314

3.43 3.40 0.99 1039 3.15 3.12 0.99 1102 2.91 2.88 0.99 1145

3.61 3.14 0.87 1081 3.36 2.92 0.87 1134 3.12 2.71 0.87 1198

3.82 2.86 0.75 1124 3.57 2.68 0.75 1187 3.33 2.49 0.75 1230

4.03 2.54 0.63 1166 3.78 2.38 0.63 1219 3.57 2.25 0.63 1272

4.24 2.16 0.51 1208 3.99 2.03 0.51 1261 3.75 1.91 0.51 1314

3.43 3.43 1.00 1039 3.15 3.15 1.00 1102 2.91 2.91 1.00 1145

3.61 3.28 0.91 1081 3.36 3.06 0.91 1134 3.12 2.83 0.91 1198

3.82 3.01 0.79 1124 3.57 2.82 0.79 1187 3.33 2.63 0.79 1230

4.03 2.70 0.67 1166 3.78 2.53 0.67 1219 3.57 2.39 0.67 1272

4.24 2.33 0.55 1208 3.99 2.19 0.55 1261 3.75 2.06 0.55 1314

35 40 46

42

PERFORMANCE DATA
COOLING operation at Rated frequency
SLZ-KA50VA(L)/SUZ-KA50VA

CAPACITY : 4.6(kW) INPUT : 1630(W) SHF : 0.68

OUTDOOR D.B.()

INDOOR INDOOR

D.B.() W.B.()

21
21
22
22
22
23
23
23
24
24
24
24
25
25
25
26
26
26
26
26
27
27
27
27
27
28
28
28
28
28
29
29
29
29
29
30
30
30
30
30
31
31
31
31
31
32
32
32
32
32

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature
SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB : Wet-bulb temperature

18
20
18
20
22
18
20
22
18
20
22
24
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

5.41

5.64

5.41

5.64

5.87

5.41

5.64

5.87

5.41

5.64

5.87

6.16

5.64

5.87

6.16

5.41

5.64

5.87

6.16

6.35

5.41

5.64

5.87

6.16

6.35

5.41

5.64

5.87

6.16

6.35

5.41

5.64

5.87

6.16

6.35

5.41

5.64

5.87

6.16

6.35

5.41

5.64

5.87

6.16

6.35

5.41

5.64

5.87

6.16

6.35

21 25 27 30

2.70

2.14

2.92

2.37

1.76

3.13

2.59

1.99

3.35

2.82

2.23

1.60

3.04

2.46

1.85

3.78

3.27

2.70

2.10

1.40

4.00

3.49

2.93

2.34

1.65

4.22

3.72

3.17

2.59

1.90

4.43

3.94

3.40

2.84

2.16

4.65

4.17

3.64

3.08

2.41

4.86

4.40

3.87

3.33

2.67

5.08

4.62

4.11

3.58

2.92

0.50

0.38

0.54

0.42

0.30

0.58

0.46

0.34

0.62

0.50

0.38

0.26

0.54

0.42

0.30

0.70

0.58

0.46

0.34

0.22

0.74

0.62

0.50

0.38

0.26

0.78

0.66

0.54

0.42

0.30

0.82

0.70

0.58

0.46

0.34

0.86

0.74

0.62

0.50

0.38

0.90

0.78

0.66

0.54

0.42

0.94

0.82

0.70

0.58

0.46

1304
1369
1304
1369
1418
1304
1369
1418
1304
1369
1418
1483
1369
1418
1483
1304
1369
1418
1483
1565
1304
1369
1418
1483
1565
1304
1369
1418
1483
1565
1304
1369
1418
1483
1565
1304
1369
1418
1483
1565
1304
1369
1418
1483
1565
1304
1369
1418
1483
1565

5.18

5.41

5.18

5.41

5.66

5.18

5.41

5.66

5.18

5.41

5.66

5.93

5.41

5.66

5.93

5.18

5.41

5.66

5.93

6.16

5.18

5.41

5.66

5.93

6.16

5.18

5.41

5.66

5.93

6.16

5.18

5.41

5.66

5.93

6.16

5.18

5.41

5.66

5.93

6.16

5.18

5.41

5.66

5.93

6.16

5.18

5.41

5.66

5.93

6.16

2.59

2.05

2.79

2.27

1.70

3.00

2.49

1.92

3.21

2.70

2.15

1.54

2.92

2.38

1.78

3.62

3.13

2.60

2.02

1.36

3.83

3.35

2.83

2.25

1.60

4.04

3.57

3.06

2.49

1.85

4.24

3.78

3.28

2.73

2.10

4.45

4.00

3.51

2.97

2.34

4.66

4.22

3.73

3.20

2.59

4.86

4.43

3.96

3.44

2.84

0.50

0.38

0.54

0.42

0.30

0.58

0.46

0.34

0.62

0.50

0.38

0.26

0.54

0.42

0.30

0.70

0.58

0.46

0.34

0.22

0.74

0.62

0.50

0.38

0.26

0.78

0.66

0.54

0.42

0.30

0.82

0.70

0.58

0.46

0.34

0.86

0.74

0.62

0.50

0.38

0.90

0.78

0.66

0.54

0.42

0.94

0.82

0.70

0.58

0.46

1369
1451
1369
1451
1508
1369
1451
1508
1369
1451
1508
1565
1451
1508
1565
1369
1451
1508
1565
1646
1369
1451
1508
1565
1646
1369
1451
1508
1565
1646
1369
1451
1508
1565
1646
1369
1451
1508
1565
1646
1369
1451
1508
1565
1646
1369
1451
1508
1565
1646

4.97

5.24

4.97

5.24

5.52

4.97

5.24

5.52

4.97

5.24

5.52

5.80

5.24

5.52

5.80

4.97

5.24

5.52

5.80

6.07

4.97

5.24

5.52

5.80

6.07

4.97

5.24

5.52

5.80

6.07

4.97

5.24

5.52

5.80

6.07

4.97

5.24

5.52

5.80

6.07

4.97

5.24

5.52

5.80

6.07

4.97

5.24

5.52

5.80

6.07

2.48

1.99

2.68

2.20

1.66

2.88

2.41

1.88

3.08

2.62

2.10

1.51

2.83

2.32

1.74

3.48

3.04

2.54

1.97

1.34

3.68

3.25

2.76

2.20

1.58

3.88

3.46

2.98

2.43

1.82

4.07

3.67

3.20

2.67

2.06

4.27

3.88

3.42

2.90

2.31

4.47

4.09

3.64

3.13

2.55

4.67

4.30

3.86

3.36

2.79

0.50

0.38

0.54

0.42

0.30

0.58

0.46

0.34

0.62

0.50

0.38

0.26

0.54

0.42

0.30

0.70

0.58

0.46

0.34

0.22

0.74

0.62

0.50

0.38

0.26

0.78

0.66

0.54

0.42

0.30

0.82

0.70

0.58

0.46

0.34

0.86

0.74

0.62

0.50

0.38

0.90

0.78

0.66

0.54

0.42

0.94

0.82

0.70

0.58

0.46

1434
1483
1434
1483
1549
1434
1483
1549
1434
1483
1549
1614
1483
1549
1614
1434
1483
1549
1614
1695
1434
1483
1549
1614
1695
1434
1483
1549
1614
1695
1434
1483
1549
1614
1695
1434
1483
1549
1614
1695
1434
1483
1549
1614
1695
1434
1483
1549
1614
1695

4.78

5.06

4.78

5.06

5.29

4.78

5.06

5.29

4.78

5.06

5.29

5.61

5.06

5.29

5.61

4.78

5.06

5.29

5.61

5.89

4.78

5.06

5.29

5.61

5.89

4.78

5.06

5.29

5.61

5.89

4.78

5.06

5.29

5.61

5.89

4.78

5.06

5.29

5.61

5.89

4.78

5.06

5.29

5.61

5.89

4.78

5.06

5.29

5.61

5.89

2.39

1.92

2.58

2.13

1.59

2.77

2.33

1.80

2.97

2.53

2.01

1.46

2.73

2.22

1.68

3.35

2.93

2.43

1.91

1.30

3.54

3.14

2.65

2.13

1.53

3.73

3.34

2.86

2.36

1.77

3.92

3.54

3.07

2.58

2.00

4.11

3.74

3.28

2.81

2.24

4.31

3.95

3.49

3.03

2.47

4.50

4.15

3.70

3.25

2.71

0.50

0.38

0.54

0.42

0.30

0.58

0.46

0.34

0.62

0.50

0.38

0.26

0.54

0.42

0.30

0.70

0.58

0.46

0.34

0.22

0.74

0.62

0.50

0.38

0.26

0.78

0.66

0.54

0.42

0.30

0.82

0.70

0.58

0.46

0.34

0.86

0.74

0.62

0.50

0.38

0.90

0.78

0.66

0.54

0.42

0.94

0.82

0.70

0.58

0.46

1500
1549
1500
1549
1614
1500
1549
1614
1500
1549
1614
1695
1549
1614
1695
1500
1549
1614
1695
1744
1500
1549
1614
1695
1744
1500
1549
1614
1695
1744
1500
1549
1614
1695
1744
1500
1549
1614
1695
1744
1500
1549
1614
1695
1744
1500
1549
1614
1695
1744

43

PERFORMANCE DATA
COOLING operation at Rated frequency
SLZ-KA50VA(L)/SUZ-KA50VA

CAPACITY : 4.6(kW) INPUT : 1630(W) SHF : 0.68

OUTDOOR D.B.()

INDOOR INDOOR

D.B.() W.B.()

21
21
22
22
22
23
23
23
24
24
24
24
25
25
25
26
26
26
26
26
27
27
27
27
27
28
28
28
28
28
29
29
29
29
29
30
30
30
30
30
31
31
31
31
31
32
32
32
32
32

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature
SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB : Wet-bulb temperature

18
20
18
20
22
18
20
22
18
20
22
24
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

4.51

4.74

4.51

4.74

5.01

4.51

4.74

5.01

4.51

4.74

5.01

5.29

4.74

5.01

5.29

4.51

4.74

5.01

5.29

5.57

4.51

4.74

5.01

5.29

5.57

4.51

4.74

5.01

5.29

5.57

4.51

4.74

5.01

5.29

5.57

4.51

4.74

5.01

5.29

5.57

4.51

4.74

5.01

5.29

5.57

4.51

4.74

5.01

5.29

5.57

35 40 46

2.25

1.80

2.43

1.99

1.50

2.61

2.18

1.70

2.79

2.37

1.91

1.38

2.56

2.11

1.59

3.16

2.75

2.31

1.80

1.22

3.34

2.94

2.51

2.01

1.45

3.52

3.13

2.71

2.22

1.67

3.70

3.32

2.91

2.43

1.89

3.88

3.51

3.11

2.65

2.12

4.06

3.70

3.31

2.86

2.34

4.24

3.89

3.51

3.07

2.56

0.50

0.38

0.54

0.42

0.30

0.58

0.46

0.34

0.62

0.50

0.38

0.26

0.54

0.42

0.30

0.70

0.58

0.46

0.34

0.22

0.74

0.62

0.50

0.38

0.26

0.78

0.66

0.54

0.42

0.30

0.82

0.70

0.58

0.46

0.34

0.86

0.74

0.62

0.50

0.38

0.90

0.78

0.66

0.54

0.42

0.94

0.82

0.70

0.58

0.46

1597
1663
1597
1663
1728
1597
1663
1728
1597
1663
1728
1793
1663
1728
1793
1597
1663
1728
1793
1858
1597
1663
1728
1793
1858
1597
1663
1728
1793
1858
1597
1663
1728
1793
1858
1597
1663
1728
1793
1858
1597
1663
1728
1793
1858
1597
1663
1728
1793
1858

4.14

4.42

4.14

4.42

4.69

4.14

4.42

4.69

4.14

4.42

4.69

4.97

4.42

4.69

4.97

4.14

4.42

4.69

4.97

5.24

4.14

4.42

4.69

4.97

5.24

4.14

4.42

4.69

4.97

5.24

4.14

4.42

4.69

4.97

5.24

4.14

4.42

4.69

4.97

5.24

4.14

4.42

4.69

4.97

5.24

4.14

4.42

4.69

4.97

5.24

2.07

1.68

2.24

1.85

1.41

2.40

2.03

1.60

2.57

2.21

1.78

1.29

2.38

1.97

1.49

2.90

2.56

2.16

1.69

1.15

3.06

2.74

2.35

1.89

1.36

3.23

2.91

2.53

2.09

1.57

3.39

3.09

2.72

2.29

1.78

3.56

3.27

2.91

2.48

1.99

3.73

3.44

3.10

2.68

2.20

3.89

3.62

3.28

2.88

2.41

0.50

0.38

0.54

0.42

0.30

0.58

0.46

0.34

0.62

0.50

0.38

0.26

0.54

0.42

0.30

0.70

0.58

0.46

0.34

0.22

0.74

0.62

0.50

0.38

0.26

0.78

0.66

0.54

0.42

0.30

0.82

0.70

0.58

0.46

0.34

0.86

0.74

0.62

0.50

0.38

0.90

0.78

0.66

0.54

0.42

0.94

0.82

0.70

0.58

0.46

1695
1744
1695
1744
1826
1695
1744
1826
1695
1744
1826
1875
1744
1826
1875
1695
1744
1826
1875
1940
1695
1744
1826
1875
1940
1695
1744
1826
1875
1940
1695
1744
1826
1875
1940
1695
1744
1826
1875
1940
1695
1744
1826
1875
1940
1695
1744
1826
1875
1940

3.82

4.09

3.82

4.09

4.37

3.82

4.09

4.37

3.82

4.09

4.37

4.69

4.09

4.37

4.69

3.82

4.09

4.37

4.69

4.92

3.82

4.09

4.37

4.69

4.92

3.82

4.09

4.37

4.69

4.92

3.82

4.09

4.37

4.69

4.92

3.82

4.09

4.37

4.69

4.92

3.82

4.09

4.37

4.69

4.92

3.82

4.09

4.37

4.69

4.92

1.91

1.56

2.06

1.72

1.31

2.21

1.88

1.49

2.37

2.05

1.66

1.22

2.21

1.84

1.41

2.67

2.37

2.01

1.60

1.08

2.83

2.54

2.19

1.78

1.28

2.98

2.70

2.36

1.97

1.48

3.13

2.87

2.53

2.16

1.67

3.28

3.03

2.71

2.35

1.87

3.44

3.19

2.88

2.53

2.07

3.59

3.36

3.06

2.72

2.26

0.50

0.38

0.54

0.42

0.30

0.58

0.46

0.34

0.62

0.50

0.38

0.26

0.54

0.42

0.30

0.70

0.58

0.46

0.34

0.22

0.74

0.62

0.50

0.38

0.26

0.78

0.66

0.54

0.42

0.30

0.82

0.70

0.58

0.46

0.34

0.86

0.74

0.62

0.50

0.38

0.90

0.78

0.66

0.54

0.42

0.94

0.82

0.70

0.58

0.46

1760
1842
1760
1842
1891
1760
1842
1891
1760
1842
1891
1956
1842
1891
1956
1760
1842
1891
1956
2021
1760
1842
1891
1956
2021
1760
1842
1891
1956
2021
1760
1842
1891
1956
2021
1760
1842
1891
1956
2021
1760
1842
1891
1956
2021
1760
1842
1891
1956
2021

44

PERFORMANCE DATA
COOLING operation at Rated frequency
SEZ-KC25VA/SUZ-KA25VA(H)

CAPACITY : 2.5(kW) INPUT : 730(W) SHF : 0.74

OUTDOOR D.B.()

INDOOR INDOOR

D.B.() W.B.()

21
21
22
22
22
23
23
23
24
24
24
24
25
25
25
26
26
26
26
26
27
27
27
27
27
28
28
28
28
28
29
29
29
29
29
30
30
30
30
30
31
31
31
31
31
32
32
32
32
32

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature
SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB : Wet-bulb temperature

18
20
18
20
22
18
20
22
18
20
22
24
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

2.94 1.65 0.56 584 2.81 1.58 0.56 613 2.70 1.51 0.56 642 2.60 1.46 0.56 672

3.06 1.35 0.44 613 2.94 1.29 0.44 650 2.85 1.25 0.44 664 2.75 1.21 0.44 694

2.94 1.76 0.60 584 2.81 1.69 0.60 613 2.70 1.62 0.60 642 2.60 1.56 0.60 672

3.06 1.47 0.48 613 2.94 1.41 0.48 650 2.85 1.37 0.48 664 2.75 1.32 0.48 694

3.19 1.15 0.36 635 3.08 1.11 0.36 675 3.00 1.08 0.36 694 2.88 1.04 0.36 723

2.94 1.88 0.64 584 2.81 1.80 0.64 613 2.70 1.73 0.64 642 2.60 1.66 0.64 672

3.06 1.59 0.52 613 2.94 1.53 0.52 650 2.85 1.48 0.52 664 2.75 1.43 0.52 694

3.19 1.28 0.40 635 3.08 1.23 0.40 675 3.00 1.20 0.40 694 2.88 1.15 0.40 723

2.94 2.00 0.68 584 2.81 1.91 0.68 613 2.70 1.84 0.68 642 2.60 1.77 0.68 672

3.06 1.72 0.56 613 2.94 1.65 0.56 650 2.85 1.60 0.56 664 2.75 1.54 0.56 694

3.19 1.40 0.44 635 3.08 1.35 0.44 675 3.00 1.32 0.44 694 2.88 1.27 0.44 723

3.35 1.07 0.32 664 3.23 1.03 0.32 701 3.15 1.01 0.32 723 3.05 0.98 0.32 759

3.06 1.84 0.60 613 2.94 1.76 0.60 650 2.85 1.71 0.60 664 2.75 1.65 0.60 694

3.19 1.53 0.48 635 3.08 1.48 0.48 675 3.00 1.44 0.48 694 2.88 1.38 0.48 723

3.35 1.21 0.36 664 3.23 1.16 0.36 701 3.15 1.13 0.36 723 3.05 1.10 0.36 759

2.94 2.23 0.76 584 2.81 2.14 0.76 613 2.70 2.05 0.76 642 2.60 1.98 0.76 672

3.06 1.96 0.64 613 2.94 1.88 0.64 650 2.85 1.82 0.64 664 2.75 1.76 0.64 694

3.19 1.66 0.52 635 3.08 1.60 0.52 675 3.00 1.56 0.52 694 2.88 1.50 0.52 723

3.35 1.34 0.40 664 3.23 1.29 0.40 701 3.15 1.26 0.40 723 3.05 1.22 0.40 759

3.45 0.97 0.28 701 3.35 0.94 0.28 737 3.30 0.92 0.28 759 3.20 0.90 0.28 781

2.94 2.35 0.80 584 2.81 2.25 0.80 613 2.70 2.16 0.80 642 2.60 2.08 0.80 672

3.06 2.08 0.68 613 2.94 2.00 0.68 650 2.85 1.94 0.68 664 2.75 1.87 0.68 694

3.19 1.79 0.56 635 3.08 1.72 0.56 675 3.00 1.68 0.56 694 2.88 1.61 0.56 723

3.35 1.47 0.44 664 3.23 1.42 0.44 701 3.15 1.39 0.44 723 3.05 1.34 0.44 759

3.45 1.10 0.32 701 3.35 1.07 0.32 737 3.30 1.06 0.32 759 3.20 1.02 0.32 781

2.94 2.47 0.84 584 2.81 2.36 0.84 613 2.70 2.27 0.84 642 2.60 2.18 0.84 672

3.06 2.21 0.72 613 2.94 2.12 0.72 650 2.85 2.05 0.72 664 2.75 1.98 0.72 694

3.19 1.91 0.60 635 3.08 1.85 0.60 675 3.00 1.80 0.60 694 2.88 1.73 0.60 723

3.35 1.61 0.48 664 3.23 1.55 0.48 701 3.15 1.51 0.48 723 3.05 1.46 0.48 759

3.45 1.24 0.36 701 3.35 1.21 0.36 737 3.30 1.19 0.36 759 3.20 1.15 0.36 781

2.94 2.59 0.88 584 2.81 2.48 0.88 613 2.70 2.38 0.88 642 2.60 2.29 0.88 672

3.06 2.33 0.76 613 2.94 2.23 0.76 650 2.85 2.17 0.76 664 2.75 2.09 0.76 694

3.19 2.04 0.64 635 3.08 1.97 0.64 675 3.00 1.92 0.64 694 2.88 1.84 0.64 723

3.35 1.74 0.52 664 3.23 1.68 0.52 701 3.15 1.64 0.52 723 3.05 1.59 0.52 759

3.45 1.38 0.40 701 3.35 1.34 0.40 737 3.30 1.32 0.40 759 3.20 1.28 0.40 781

2.94 2.70 0.92 584 2.81 2.59 0.92 613 2.70 2.48 0.92 642 2.60 2.39 0.92 672

3.06 2.45 0.80 613 2.94 2.35 0.80 650 2.85 2.28 0.80 664 2.75 2.20 0.80 694

3.19 2.17 0.68 635 3.08 2.09 0.68 675 3.00 2.04 0.68 694 2.88 1.96 0.68 723

3.35 1.88 0.56 664 3.23 1.81 0.56 701 3.15 1.76 0.56 723 3.05 1.71 0.56 759

3.45 1.52 0.44 701 3.35 1.47 0.44 737 3.30 1.45 0.44 759 3.20 1.41 0.44 781

2.94 2.82 0.96 584 2.81 2.70 0.96 613 2.70 2.59 0.96 642 2.60 2.50 0.96 672

3.06 2.57 0.84 613 2.94 2.47 0.84 650 2.85 2.39 0.84 664 2.75 2.31 0.84 694

3.19 2.30 0.72 635 3.08 2.21 0.72 675 3.00 2.16 0.72 694 2.88 2.07 0.72 723

3.35 2.01 0.60 664 3.23 1.94 0.60 701 3.15 1.89 0.60 723 3.05 1.83 0.60 759

3.45 1.66 0.48 701 3.35 1.61 0.48 737 3.30 1.58 0.48 759 3.20 1.54 0.48 781

2.94 2.94 1.00 584 2.81 2.81 1.00 613 2.70 2.70 1.00 642 2.60 2.60 1.00 672

3.06 2.70 0.88 613 2.94 2.59 0.88 650 2.85 2.51 0.88 664 2.75 2.42 0.88 694

3.19 2.42 0.76 635 3.08 2.34 0.76 675 3.00 2.28 0.76 694 2.88 2.19 0.76 723

3.35 2.14 0.64 664 3.23 2.06 0.64 701 3.15 2.02 0.64 723 3.05 1.95 0.64 759

3.45 1.79 0.52 701 3.35 1.74 0.52 737 3.30 1.72 0.52 759 3.20 1.66 0.52 781

21 25 27 30

45

PERFORMANCE DATA
COOLING operation at Rated frequency
SEZ-KC25VA/SUZ-KA25VA(H)

CAPACITY : 2.5(kW) INPUT : 730(W) SHF : 0.74

OUTDOOR D.B.()

INDOOR INDOOR

D.B.() W.B.()

21
21
22
22
22
23
23
23
24
24
24
24
25
25
25
26
26
26
26
26
27
27
27
27
27
28
28
28
28
28
29
29
29
29
29
30
30
30
30
30
31
31
31
31
31
32
32
32
32
32

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature
SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB : Wet-bulb temperature

18
20
18
20
22
18
20
22
18
20
22
24
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

2.45 1.37 0.56 715 2.25 1.26 0.56 759 2.08 1.16 0.56 788

2.58 1.13 0.44 745 2.40 1.06 0.44 781 2.23 0.98 0.44 825

2.45 1.47 0.60 715 2.25 1.35 0.60 759 2.08 1.25 0.60 788

2.58 1.24 0.48 745 2.40 1.15 0.48 781 2.23 1.07 0.48 825

2.73 0.98 0.36 774 2.55 0.92 0.36 818 2.38 0.86 0.36 847

2.45 1.57 0.64 715 2.25 1.44 0.64 759 2.08 1.33 0.64 788

2.58 1.34 0.52 745 2.40 1.25 0.52 781 2.23 1.16 0.52 825

2.73 1.09 0.40 774 2.55 1.02 0.40 818 2.38 0.95 0.40 847

2.45 1.67 0.68 715 2.25 1.53 0.68 759 2.08 1.41 0.68 788

2.58 1.44 0.56 745 2.40 1.34 0.56 781 2.23 1.25 0.56 825

2.73 1.20 0.44 774 2.55 1.12 0.44 818 2.38 1.05 0.44 847

2.88 0.92 0.32 803 2.70 0.86 0.32 840 2.55 0.82 0.32 876

2.58 1.55 0.60 745 2.40 1.44 0.60 781 2.23 1.34 0.60 825

2.73 1.31 0.48 774 2.55 1.22 0.48 818 2.38 1.14 0.48 847

2.88 1.04 0.36 803 2.70 0.97 0.36 840 2.55 0.92 0.36 876

2.45 1.86 0.76 715 2.25 1.71 0.76 759 2.08 1.58 0.76 788

2.58 1.65 0.64 745 2.40 1.54 0.64 781 2.23 1.42 0.64 825

2.73 1.42 0.52 774 2.55 1.33 0.52 818 2.38 1.24 0.52 847

2.88 1.15 0.40 803 2.70 1.08 0.40 840 2.55 1.02 0.40 876

3.03 0.85 0.28 832 2.85 0.80 0.28 869 2.68 0.75 0.28 905

2.45 1.96 0.80 715 2.25 1.80 0.80 759 2.08 1.66 0.80 788

2.58 1.75 0.68 745 2.40 1.63 0.68 781 2.23 1.51 0.68 825

2.73 1.53 0.56 774 2.55 1.43 0.56 818 2.38 1.33 0.56 847

2.88 1.27 0.44 803 2.70 1.19 0.44 840 2.55 1.12 0.44 876

3.03 0.97 0.32 832 2.85 0.91 0.32 869 2.68 0.86 0.32 905

2.45 2.06 0.84 715 2.25 1.89 0.84 759 2.08 1.74 0.84 788

2.58 1.85 0.72 745 2.40 1.73 0.72 781 2.23 1.60 0.72 825

2.73 1.64 0.60 774 2.55 1.53 0.60 818 2.38 1.43 0.60 847

2.88 1.38 0.48 803 2.70 1.30 0.48 840 2.55 1.22 0.48 876

3.03 1.09 0.36 832 2.85 1.03 0.36 869 2.68 0.96 0.36 905

2.45 2.16 0.88 715 2.25 1.98 0.88 759 2.08 1.83 0.88 788

2.58 1.96 0.76 745 2.40 1.82 0.76 781 2.23 1.69 0.76 825

2.73 1.74 0.64 774 2.55 1.63 0.64 818 2.38 1.52 0.64 847

2.88 1.50 0.52 803 2.70 1.40 0.52 840 2.55 1.33 0.52 876

3.03 1.21 0.40 832 2.85 1.14 0.40 869 2.68 1.07 0.40 905

2.45 2.25 0.92 715 2.25 2.07 0.92 759 2.08 1.91 0.92 788

2.58 2.06 0.80 745 2.40 1.92 0.80 781 2.23 1.78 0.80 825

2.73 1.85 0.68 774 2.55 1.73 0.68 818 2.38 1.62 0.68 847

2.88 1.61 0.56 803 2.70 1.51 0.56 840 2.55 1.43 0.56 876

3.03 1.33 0.44 832 2.85 1.25 0.44 869 2.68 1.18 0.44 905

2.45 2.35 0.96 715 2.25 2.16 0.96 759 2.08 1.99 0.96 788

2.58 2.16 0.84 745 2.40 2.02 0.84 781 2.23 1.87 0.84 825

2.73 1.96 0.72 774 2.55 1.84 0.72 818 2.38 1.71 0.72 847

2.88 1.73 0.60 803 2.70 1.62 0.60 840 2.55 1.53 0.60 876

3.03 1.45 0.48 832 2.85 1.37 0.48 869 2.68 1.28 0.48 905

2.45 2.45 1.00 715 2.25 2.25 1.00 759 2.08 2.08 1.00 788

2.58 2.27 0.88 745 2.40 2.11 0.88 781 2.23 1.96 0.88 825

2.73 2.07 0.76 774 2.55 1.94 0.76 818 2.38 1.81 0.76 847

2.88 1.84 0.64 803 2.70 1.73 0.64 840 2.55 1.63 0.64 876

3.03 1.57 0.52 832 2.85 1.48 0.52 869 2.68 1.39 0.52 905

35 40 46

46

PERFORMANCE DATA
COOLING operation at Rated frequency
SEZ-KA35VA/SUZ-KA35VA(H)

CAPACITY : 3.5(kW) INPUT : 1060(W) SHF : 0.77

OUTDOOR D.B.()

INDOOR INDOOR

D.B.() W.B.()

21
21
22
22
22
23
23
23
24
24
24
24
25
25
25
26
26
26
26
26
27
27
27
27
27
28
28
28
28
28
29
29
29
29
29
30
30
30
30
30
31
31
31
31
31
32
32
32
32
32

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature
SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB : Wet-bulb temperature

18
20
18
20
22
18
20
22
18
20
22
24
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

4.11 2.43 0.59 848 3.94 2.32 0.59 890 3.78 2.23 0.59 933 3.64 2.15 0.59 975

4.29 2.02 0.47 890 4.11 1.93 0.47 943 3.99 1.88 0.47 965 3.85 1.81 0.47 1007

4.11 2.59 0.63 848 3.94 2.48 0.63 890 3.78 2.38 0.63 933 3.64 2.29 0.63 975

4.29 2.19 0.51 890 4.11 2.10 0.51 943 3.99 2.03 0.51 965 3.85 1.96 0.51 1007

4.46 1.74 0.39 922 4.31 1.68 0.39 981 4.20 1.64 0.39 1007 4.03 1.57 0.39 1049

4.11 2.76 0.67 848 3.94 2.64 0.67 890 3.78 2.53 0.67 933 3.64 2.44 0.67 975

4.29 2.36 0.55 890 4.11 2.26 0.55 943 3.99 2.19 0.55 965 3.85 2.12 0.55 1007

4.46 1.92 0.43 922 4.31 1.85 0.43 981 4.20 1.81 0.43 1007 4.03 1.73 0.43 1049

4.11 2.92 0.71 848 3.94 2.80 0.71 890 3.78 2.68 0.71 933 3.64 2.58 0.71 975

4.29 2.53 0.59 890 4.11 2.43 0.59 943 3.99 2.35 0.59 965 3.85 2.27 0.59 1007

4.46 2.10 0.47 922 4.31 2.02 0.47 981 4.20 1.97 0.47 1007 4.03 1.89 0.47 1049

4.69 1.64 0.35 965 4.52 1.58 0.35 1018 4.41 1.54 0.35 1049 4.27 1.49 0.35 1102

4.29 2.70 0.63 890 4.11 2.59 0.63 943 3.99 2.51 0.63 965 3.85 2.43 0.63 1007

4.46 2.28 0.51 922 4.31 2.20 0.51 981 4.20 2.14 0.51 1007 4.03 2.05 0.51 1049

4.69 1.83 0.39 965 4.52 1.76 0.39 1018 4.41 1.72 0.39 1049 4.27 1.67 0.39 1102

4.11 3.25 0.79 848 3.94 3.11 0.79 890 3.78 2.99 0.79 933 3.64 2.88 0.79 975

4.29 2.87 0.67 890 4.11 2.76 0.67 943 3.99 2.67 0.67 965 3.85 2.58 0.67 1007

4.46 2.45 0.55 922 4.31 2.37 0.55 981 4.20 2.31 0.55 1007 4.03 2.21 0.55 1049

4.69 2.02 0.43 965 4.52 1.94 0.43 1018 4.41 1.90 0.43 1049 4.27 1.84 0.43 1102

4.83 1.50 0.31 1018 4.69 1.45 0.31 1071 4.62 1.43 0.31 1102 4.48 1.39 0.31 1134

4.11 3.41 0.83 848 3.94 3.27 0.83 890 3.78 3.14 0.83 933 3.64 3.02 0.83 975

4.29 3.04 0.71 890 4.11 2.92 0.71 943 3.99 2.83 0.71 965 3.85 2.73 0.71 1007

4.46 2.63 0.59 922 4.31 2.54 0.59 981 4.20 2.48 0.59 1007 4.03 2.37 0.59 1049

4.69 2.20 0.47 965 4.52 2.12 0.47 1018 4.41 2.07 0.47 1049 4.27 2.01 0.47 1102

4.83 1.69 0.35 1018 4.69 1.64 0.35 1071 4.62 1.62 0.35 1102 4.48 1.57 0.35 1134

4.11 3.58 0.87 848 3.94 3.43 0.87 890 3.78 3.29 0.87 933 3.64 3.17 0.87 975

4.29 3.22 0.75 890 4.11 3.08 0.75 943 3.99 2.99 0.75 965 3.85 2.89 0.75 1007

4.46 2.81 0.63 922 4.31 2.71 0.63 981 4.20 2.65 0.63 1007 4.03 2.54 0.63 1049

4.69 2.39 0.51 965 4.52 2.30 0.51 1018 4.41 2.25 0.51 1049 4.27 2.18 0.51 1102

4.83 1.88 0.39 1018 4.69 1.83 0.39 1071 4.62 1.80 0.39 1102 4.48 1.75 0.39 1134

4.11 3.74 0.91 848 3.94 3.58 0.91 890 3.78 3.44 0.91 933 3.64 3.31 0.91 975

4.29 3.39 0.79 890 4.11 3.25 0.79 943 3.99 3.15 0.79 965 3.85 3.04 0.79 1007

4.46 2.99 0.67 922 4.31 2.88 0.67 981 4.20 2.81 0.67 1007 4.03 2.70 0.67 1049

4.69 2.58 0.55 965 4.52 2.48 0.55 1018 4.41 2.43 0.55 1049 4.27 2.35 0.55 1102

4.83 2.08 0.43 1018 4.69 2.02 0.43 1071 4.62 1.99 0.43 1102 4.48 1.93 0.43 1134

4.11 3.91 0.95 848 3.94 3.74 0.95 890 3.78 3.59 0.95 933 3.64 3.46 0.95 975

4.29 3.56 0.83 890 4.11 3.41 0.83 943 3.99 3.31 0.83 965 3.85 3.20 0.83 1007

4.46 3.17 0.71 922 4.31 3.06 0.71 981 4.20 2.98 0.71 1007 4.03 2.86 0.71 1049

4.69 2.77 0.59 965 4.52 2.66 0.59 1018 4.41 2.60 0.59 1049 4.27 2.52 0.59 1102

4.83 2.27 0.47 1018 4.69 2.20 0.47 1071 4.62 2.17 0.47 1102 4.48 2.11 0.47 1134

4.11 4.07 0.99 848 3.94 3.90 0.99 890 3.78 3.74 0.99 933 3.64 3.60 0.99 975

4.29 3.73 0.87 890 4.11 3.58 0.87 943 3.99 3.47 0.87 965 3.85 3.35 0.87 1007

4.46 3.35 0.75 922 4.31 3.23 0.75 981 4.20 3.15 0.75 1007 4.03 3.02 0.75 1049

4.69 2.95 0.63 965 4.52 2.84 0.63 1018 4.41 2.78 0.63 1049 4.27 2.69 0.63 1102

4.83 2.46 0.51 1018 4.69 2.39 0.51 1071 4.62 2.36 0.51 1102 4.48 2.28 0.51 1134

4.11 4.11 1.00 848 3.94 3.94 1.00 890 3.78 3.78 1.00 933 3.64 3.64 1.00 975

4.29 3.90 0.91 890 4.11 3.74 0.91 943 3.99 3.63 0.91 965 3.85 3.50 0.91 1007

4.46 3.53 0.79 922 4.31 3.40 0.79 981 4.20 3.32 0.79 1007 4.03 3.18 0.79 1049

4.69 3.14 0.67 965 4.52 3.03 0.67 1018 4.41 2.95 0.67 1049 4.27 2.86 0.67 1102

4.83 2.66 0.55 1018 4.69 2.58 0.55 1071 4.62 2.54 0.55 1102 4.48 2.46 0.55 1134

21 25 27 30

47

PERFORMANCE DATA
COOLING operation at Rated frequency
SEZ-KA35VA/SUZ-KA35VA(H)

CAPACITY : 3.5(kW) INPUT : 1060(W) SHF : 0.77

OUTDOOR D.B.()

INDOOR INDOOR

D.B.() W.B.()

21
21
22
22
22
23
23
23
24
24
24
24
25
25
25
26
26
26
26
26
27
27
27
27
27
28
28
28
28
28
29
29
29
29
29
30
30
30
30
30
31
31
31
31
31
32
32
32
32
32

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature
SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB : Wet-bulb temperature

18
20
18
20
22
18
20
22
18
20
22
24
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

3.43 2.02 0.59 1039 3.15 1.86 0.59 1102 2.91 1.71 0.59 1145

3.61 1.69 0.47 1081 3.36 1.58 0.47 1134 3.12 1.46 0.47 1198

3.43 2.16 0.63 1039 3.15 1.98 0.63 1102 2.91 1.83 0.63 1145

3.61 1.84 0.51 1081 3.36 1.71 0.51 1134 3.12 1.59 0.51 1198

3.82 1.49 0.39 1124 3.57 1.39 0.39 1187 3.33 1.30 0.39 1230

3.43 2.30 0.67 1039 3.15 2.11 0.67 1102 2.91 1.95 0.67 1145

3.61 1.98 0.55 1081 3.36 1.85 0.55 1134 3.12 1.71 0.55 1198

3.82 1.64 0.43 1124 3.57 1.54 0.43 1187 3.33 1.43 0.43 1230

3.43 2.44 0.71 1039 3.15 2.24 0.71 1102 2.91 2.06 0.71 1145

3.61 2.13 0.59 1081 3.36 1.98 0.59 1134 3.12 1.84 0.59 1198

3.82 1.79 0.47 1124 3.57 1.68 0.47 1187 3.33 1.56 0.47 1230

4.03 1.41 0.35 1166 3.78 1.32 0.35 1219 3.57 1.25 0.35 1272

3.61 2.27 0.63 1081 3.36 2.12 0.63 1134 3.12 1.96 0.63 1198

3.82 1.95 0.51 1124 3.57 1.82 0.51 1187 3.33 1.70 0.51 1230

4.03 1.57 0.39 1166 3.78 1.47 0.39 1219 3.57 1.39 0.39 1272

3.43 2.71 0.79 1039 3.15 2.49 0.79 1102 2.91 2.29 0.79 1145

3.61 2.42 0.67 1081 3.36 2.25 0.67 1134 3.12 2.09 0.67 1198

3.82 2.10 0.55 1124 3.57 1.96 0.55 1187 3.33 1.83 0.55 1230

4.03 1.73 0.43 1166 3.78 1.63 0.43 1219 3.57 1.54 0.43 1272

4.24 1.31 0.31 1208 3.99 1.24 0.31 1261 3.75 1.16 0.31 1314

3.43 2.85 0.83 1039 3.15 2.61 0.83 1102 2.91 2.41 0.83 1145

3.61 2.56 0.71 1081 3.36 2.39 0.71 1134 3.12 2.21 0.71 1198

3.82 2.25 0.59 1124 3.57 2.11 0.59 1187 3.33 1.96 0.59 1230

4.03 1.89 0.47 1166 3.78 1.78 0.47 1219 3.57 1.68 0.47 1272

4.24 1.48 0.35 1208 3.99 1.40 0.35 1261 3.75 1.31 0.35 1314

3.43 2.98 0.87 1039 3.15 2.74 0.87 1102 2.91 2.53 0.87 1145

3.61 2.70 0.75 1081 3.36 2.52 0.75 1134 3.12 2.34 0.75 1198

3.82 2.40 0.63 1124 3.57 2.25 0.63 1187 3.33 2.09 0.63 1230

4.03 2.05 0.51 1166 3.78 1.93 0.51 1219 3.57 1.82 0.51 1272

4.24 1.65 0.39 1208 3.99 1.56 0.39 1261 3.75 1.46 0.39 1314

3.43 3.12 0.91 1039 3.15 2.87 0.91 1102 2.91 2.64 0.91 1145

3.61 2.85 0.79 1081 3.36 2.65 0.79 1134 3.12 2.46 0.79 1198

3.82 2.56 0.67 1124 3.57 2.39 0.67 1187 3.33 2.23 0.67 1230

4.03 2.21 0.55 1166 3.78 2.08 0.55 1219 3.57 1.96 0.55 1272

4.24 1.82 0.43 1208 3.99 1.72 0.43 1261 3.75 1.61 0.43 1314

3.43 3.26 0.95 1039 3.15 2.99 0.95 1102 2.91 2.76 0.95 1145

3.61 2.99 0.83 1081 3.36 2.79 0.83 1134 3.12 2.59 0.83 1198

3.82 2.71 0.71 1124 3.57 2.53 0.71 1187 3.33 2.36 0.71 1230

4.03 2.37 0.59 1166 3.78 2.23 0.59 1219 3.57 2.11 0.59 1272

4.24 1.99 0.47 1208 3.99 1.88 0.47 1261 3.75 1.76 0.47 1314

3.43 3.40 0.99 1039 3.15 3.12 0.99 1102 2.91 2.88 0.99 1145

3.61 3.14 0.87 1081 3.36 2.92 0.87 1134 3.12 2.71 0.87 1198

3.82 2.86 0.75 1124 3.57 2.68 0.75 1187 3.33 2.49 0.75 1230

4.03 2.54 0.63 1166 3.78 2.38 0.63 1219 3.57 2.25 0.63 1272

4.24 2.16 0.51 1208 3.99 2.03 0.51 1261 3.75 1.91 0.51 1314

3.43 3.43 1.00 1039 3.15 3.15 1.00 1102 2.91 2.91 1.00 1145

3.61 3.28 0.91 1081 3.36 3.06 0.91 1134 3.12 2.83 0.91 1198

3.82 3.01 0.79 1124 3.57 2.82 0.79 1187 3.33 2.63 0.79 1230

4.03 2.70 0.67 1166 3.78 2.53 0.67 1219 3.57 2.39 0.67 1272

4.24 2.33 0.55 1208 3.99 2.19 0.55 1261 3.75 2.06 0.55 1314

35 40 46

48

PERFORMANCE DATA
COOLING operation at Rated frequency
SEZ-KA50VA/SUZ-KA50VA

CAPACITY : 5.0(kW) INPUT : 1780(W) SHF : 0.75

OUTDOOR D.B.()

INDOOR INDOOR

D.B.() W.B.()

21
21
22
22
22
23
23
23
24
24
24
24
25
25
25
26
26
26
26
26
27
27
27
27
27
28
28
28
28
28
29
29
29
29
29
30
30
30
30
30
31
31
31
31
31
32
32
32
32
32

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature
SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB : Wet-bulb temperature

18
20
18
20
22
18
20
22
18
20
22
24
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

5.88

6.13

5.88

6.13

6.38

5.88

6.13

6.38

5.88

6.13

6.38

6.70

6.13

6.38

6.70

5.88

6.13

6.38

6.70

6.90

5.88

6.13

6.38

6.70

6.90

5.88

6.13

6.38

6.70

6.90

5.88

6.13

6.38

6.70

6.90

5.88

6.13

6.38

6.70

6.90

5.88

6.13

6.38

6.70

6.90

5.88

6.13

6.38

6.70

6.90

21 25 27 30

3.35

2.76

3.58

3.00

2.36

3.82

3.25

2.61

4.05

3.49

2.87

2.21

3.74

3.12

2.48

4.52

3.98

3.38

2.75

2.00

4.76

4.23

3.63

3.02

2.28

4.99

4.47

3.89

3.28

2.55

5.23

4.72

4.14

3.55

2.83

5.46

4.96

4.40

3.82

3.11

5.70

5.21

4.65

4.09

3.38

5.88

5.45

4.91

4.36

3.66

0.57

0.45

0.61

0.49

0.37

0.65

0.53

0.41

0.69

0.57

0.45

0.33

0.61

0.49

0.37

0.77

0.65

0.53

0.41

0.29

0.81

0.69

0.57

0.45

0.33

0.85

0.73

0.61

0.49

0.37

0.89

0.77

0.65

0.53

0.41

0.93

0.81

0.69

0.57

0.45

0.97

0.85

0.73

0.61

0.49

1.00

0.89

0.77

0.65

0.53

1424
1495
1424
1495
1549
1424
1495
1549
1424
1495
1549
1620
1495
1549
1620
1424
1495
1549
1620
1709
1424
1495
1549
1620
1709
1424
1495
1549
1620
1709
1424
1495
1549
1620
1709
1424
1495
1549
1620
1709
1424
1495
1549
1620
1709
1424
1495
1549
1620
1709

5.63

5.88

5.63

5.88

6.15

5.63

5.88

6.15

5.63

5.88

6.15

6.45

5.88

6.15

6.45

5.63

5.88

6.15

6.45

6.70

5.63

5.88

6.15

6.45

6.70

5.63

5.88

6.15

6.45

6.70

5.63

5.88

6.15

6.45

6.70

5.63

5.88

6.15

6.45

6.70

5.63

5.88

6.15

6.45

6.70

5.63

5.88

6.15

6.45

6.70

3.21

2.64

3.43

2.88

2.28

3.66

3.11

2.52

3.88

3.35

2.77

2.13

3.58

3.01

2.39

4.33

3.82

3.26

2.64

1.94

4.56

4.05

3.51

2.90

2.21

4.78

4.29

3.75

3.16

2.48

5.01

4.52

4.00

3.42

2.75

5.23

4.76

4.24

3.68

3.02

5.46

4.99

4.49

3.93

3.28

5.63

5.23

4.74

4.19

3.55

0.57

0.45

0.61

0.49

0.37

0.65

0.53

0.41

0.69

0.57

0.45

0.33

0.61

0.49

0.37

0.77

0.65

0.53

0.41

0.29

0.81

0.69

0.57

0.45

0.33

0.85

0.73

0.61

0.49

0.37

0.89

0.77

0.65

0.53

0.41

0.93

0.81

0.69

0.57

0.45

0.97

0.85

0.73

0.61

0.49

1.00

0.89

0.77

0.65

0.53

1495
1584
1495
1584
1647
1495
1584
1647
1495
1584
1647
1709
1584
1647
1709
1495
1584
1647
1709
1798
1495
1584
1647
1709
1798
1495
1584
1647
1709
1798
1495
1584
1647
1709
1798
1495
1584
1647
1709
1798
1495
1584
1647
1709
1798
1495
1584
1647
1709
1798

5.40

5.70

5.40

5.70

6.00

5.40

5.70

6.00

5.40

5.70

6.00

6.30

5.70

6.00

6.30

5.40

5.70

6.00

6.30

6.60

5.40

5.70

6.00

6.30

6.60

5.40

5.70

6.00

6.30

6.60

5.40

5.70

6.00

6.30

6.60

5.40

5.70

6.00

6.30

6.60

5.40

5.70

6.00

6.30

6.60

5.40

5.70

6.00

6.30

6.60

3.08

2.57

3.29

2.79

2.22

3.51

3.02

2.46

3.73

3.25

2.70

2.08

3.48

2.94

2.33

4.16

3.71

3.18

2.58

1.91

4.37

3.93

3.42

2.84

2.18

4.59

4.16

3.66

3.09

2.44

4.81

4.39

3.90

3.34

2.71

5.02

4.62

4.14

3.59

2.97

5.24

4.85

4.38

3.84

3.23

5.40

5.07

4.62

4.10

3.50

0.57

0.45

0.61

0.49

0.37

0.65

0.53

0.41

0.69

0.57

0.45

0.33

0.61

0.49

0.37

0.77

0.65

0.53

0.41

0.29

0.81

0.69

0.57

0.45

0.33

0.85

0.73

0.61

0.49

0.37

0.89

0.77

0.65

0.53

0.41

0.93

0.81

0.69

0.57

0.45

0.97

0.85

0.73

0.61

0.49

1.00

0.89

0.77

0.65

0.53

1566
1620
1566
1620
1691
1566
1620
1691
1566
1620
1691
1762
1620
1691
1762
1566
1620
1691
1762
1851
1566
1620
1691
1762
1851
1566
1620
1691
1762
1851
1566
1620
1691
1762
1851
1566
1620
1691
1762
1851
1566
1620
1691
1762
1851
1566
1620
1691
1762
1851

5.20

5.50

5.20

5.50

5.75

5.20

5.50

5.75

5.20

5.50

5.75

6.10

5.50

5.75

6.10

5.20

5.50

5.75

6.10

6.40

5.20

5.50

5.75

6.10

6.40

5.20

5.50

5.75

6.10

6.40

5.20

5.50

5.75

6.10

6.40

5.20

5.50

5.75

6.10

6.40

5.20

5.50

5.75

6.10

6.40

5.20

5.50

5.75

6.10

6.40

2.96

2.48

3.17

2.70

2.13

3.38

2.92

2.36

3.59

3.14

2.59

2.01

3.36

2.82

2.26

4.00

3.58

3.05

2.50

1.86

4.21

3.80

3.28

2.75

2.11

4.42

4.02

3.51

2.99

2.37

4.63

4.24

3.74

3.23

2.62

4.84

4.46

3.97

3.48

2.88

5.04

4.68

4.20

3.72

3.14

5.20

4.90

4.43

3.97

3.39

0.57

0.45

0.61

0.49

0.37

0.65

0.53

0.41

0.69

0.57

0.45

0.33

0.61

0.49

0.37

0.77

0.65

0.53

0.41

0.29

0.81

0.69

0.57

0.45

0.33

0.85

0.73

0.61

0.49

0.37

0.89

0.77

0.65

0.53

0.41

0.93

0.81

0.69

0.57

0.45

0.97

0.85

0.73

0.61

0.49

1.00

0.89

0.77

0.65

0.53

1638
1691
1638
1691
1762
1638
1691
1762
1638
1691
1762
1851
1691
1762
1851
1638
1691
1762
1851
1905
1638
1691
1762
1851
1905
1638
1691
1762
1851
1905
1638
1691
1762
1851
1905
1638
1691
1762
1851
1905
1638
1691
1762
1851
1905
1638
1691
1762
1851
1905

49

PERFORMANCE DATA
COOLING operation at Rated frequency
SEZ-KA50VA/SUZ-KA50VA

CAPACITY : 5.0(kW) INPUT : 1780(W) SHF : 0.75

OUTDOOR D.B.()

INDOOR INDOOR

D.B.() W.B.()

21
21
22
22
22
23
23
23
24
24
24
24
25
25
25
26
26
26
26
26
27
27
27
27
27
28
28
28
28
28
29
29
29
29
29
30
30
30
30
30
31
31
31
31
31
32
32
32
32
32

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature
SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB : Wet-bulb temperature

18
20
18
20
22
18
20
22
18
20
22
24
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

4.90

5.15

4.90

5.15

5.45

4.90

5.15

5.45

4.90

5.15

5.45

5.75

5.15

5.45

5.75

4.90

5.15

5.45

5.75

6.05

4.90

5.15

5.45

5.75

6.05

4.90

5.15

5.45

5.75

6.05

4.90

5.15

5.45

5.75

6.05

4.90

5.15

5.45

5.75

6.05

4.90

5.15

5.45

5.75

6.05

4.90

5.15

5.45

5.75

6.05

35 40 46

2.79

2.32

2.99

2.52

2.02

3.19

2.73

2.23

3.38

2.94

2.45

1.90

3.14

2.67

2.13

3.77

3.35

2.89

2.36

1.75

3.97

3.55

3.11

2.59

2.00

4.17

3.76

3.32

2.82

2.24

4.36

3.97

3.54

3.05

2.48

4.56

4.17

3.76

3.28

2.72

4.75

4.38

3.98

3.51

2.96

4.90

4.58

4.20

3.74

3.21

0.57

0.45

0.61

0.49

0.37

0.65

0.53

0.41

0.69

0.57

0.45

0.33

0.61

0.49

0.37

0.77

0.65

0.53

0.41

0.29

0.81

0.69

0.57

0.45

0.33

0.85

0.73

0.61

0.49

0.37

0.89

0.77

0.65

0.53

0.41

0.93

0.81

0.69

0.57

0.45

0.97

0.85

0.73

0.61

0.49

1.00

0.89

0.77

0.65

0.53

1744
1816
1744
1816
1887
1744
1816
1887
1744
1816
1887
1958
1816
1887
1958
1744
1816
1887
1958
2029
1744
1816
1887
1958
2029
1744
1816
1887
1958
2029
1744
1816
1887
1958
2029
1744
1816
1887
1958
2029
1744
1816
1887
1958
2029
1744
1816
1887
1958
2029

4.50

4.80

4.50

4.80

5.10

4.50

4.80

5.10

4.50

4.80

5.10

5.40

4.80

5.10

5.40

4.50

4.80

5.10

5.40

5.70

4.50

4.80

5.10

5.40

5.70

4.50

4.80

5.10

5.40

5.70

4.50

4.80

5.10

5.40

5.70

4.50

4.80

5.10

5.40

5.70

4.50

4.80

5.10

5.40

5.70

4.50

4.80

5.10

5.40

5.70

2.57

2.16

2.75

2.35

1.89

2.93

2.54

2.09

3.11

2.74

2.30

1.78

2.93

2.50

2.00

3.47

3.12

2.70

2.21

1.65

3.65

3.31

2.91

2.43

1.88

3.83

3.50

3.11

2.65

2.11

4.01

3.70

3.32

2.86

2.34

4.19

3.89

3.52

3.08

2.57

4.37

4.08

3.72

3.29

2.79

4.50

4.27

3.93

3.51

3.02

0.57

0.45

0.61

0.49

0.37

0.65

0.53

0.41

0.69

0.57

0.45

0.33

0.61

0.49

0.37

0.77

0.65

0.53

0.41

0.29

0.81

0.69

0.57

0.45

0.33

0.85

0.73

0.61

0.49

0.37

0.89

0.77

0.65

0.53

0.41

0.93

0.81

0.69

0.57

0.45

0.97

0.85

0.73

0.61

0.49

1.00

0.89

0.77

0.65

0.53

1851
1905
1851
1905
1994
1851
1905
1994
1851
1905
1994
2047
1905
1994
2047
1851
1905
1994
2047
2118
1851
1905
1994
2047
2118
1851
1905
1994
2047
2118
1851
1905
1994
2047
2118
1851
1905
1994
2047
2118
1851
1905
1994
2047
2118
1851
1905
1994
2047
2118

4.15

4.45

4.15

4.45

4.75

4.15

4.45

4.75

4.15

4.45

4.75

5.10

4.45

4.75

5.10

4.15

4.45

4.75

5.10

5.35

4.15

4.45

4.75

5.10

5.35

4.15

4.45

4.75

5.10

5.35

4.15

4.45

4.75

5.10

5.35

4.15

4.45

4.75

5.10

5.35

4.15

4.45

4.75

5.10

5.35

4.15

4.45

4.75

5.10

5.35

2.37

2.00

2.53

2.18

1.76

2.70

2.36

1.95

2.86

2.54

2.14

1.68

2.71

2.33

1.89

3.20

2.89

2.52

2.09

1.55

3.36

3.07

2.71

2.30

1.77

3.53

3.25

2.90

2.50

1.98

3.69

3.43

3.09

2.70

2.19

3.86

3.60

3.28

2.91

2.41

4.03

3.78

3.47

3.11

2.62

4.15

3.96

3.66

3.32

2.84

0.57

0.45

0.61

0.49

0.37

0.65

0.53

0.41

0.69

0.57

0.45

0.33

0.61

0.49

0.37

0.77

0.65

0.53

0.41

0.29

0.81

0.69

0.57

0.45

0.33

0.85

0.73

0.61

0.49

0.37

0.89

0.77

0.65

0.53

0.41

0.93

0.81

0.69

0.57

0.45

0.97

0.85

0.73

0.61

0.49

1.00

0.89

0.77

0.65

0.53

1922
2011
1922
2011
2065
1922
2011
2065
1922
2011
2065
2136
2011
2065
2136
1922
2011
2065
2136
2207
1922
2011
2065
2136
2207
1922
2011
2065
2136
2207
1922
2011
2065
2136
2207
1922
2011
2065
2136
2207
1922
2011
2065
2136
2207
1922
2011
2065
2136
2207

50

PERFORMANCE DATA
COOLING operation at Rated frequency
SEZ-KA60VA/SUZ-KA60VA

CAPACITY : 5.5(kW) INPUT : 1960(W) SHF : 0.75

OUTDOOR D.B.()

INDOOR INDOOR

D.B.() W.B.()

21
21
22
22
22
23
23
23
24
24
24
24
25
25
25
26
26
26
26
26
27
27
27
27
27
28
28
28
28
28
29
29
29
29
29
30
30
30
30
30
31
31
31
31
31
32
32
32
32
32

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature
SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB : Wet-bulb temperature

18
20
18
20
22
18
20
22
18
20
22
24
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

6.46

6.74

6.46

6.74

7.01

6.46

6.74

7.01

6.46

6.74

7.01

7.37

6.74

7.01

7.37

6.46

6.74

7.01

7.37

7.59

6.46

6.74

7.01

7.37

7.59

6.46

6.74

7.01

7.37

7.59

6.46

6.74

7.01

7.37

7.59

6.46

6.74

7.01

7.37

7.59

6.46

6.74

7.01

7.37

7.59

6.46

6.74

7.01

7.37

7.59

21 25 27 30

3.68

3.03

3.94

3.30

2.59

4.20

3.57

2.88

4.46

3.84

3.16

2.43

4.11

3.44

2.73

4.98

4.38

3.72

3.02

2.20

5.23

4.65

4.00

3.32

2.50

5.49

4.92

4.28

3.61

2.81

5.75

5.19

4.56

3.91

3.11

6.01

5.46

4.84

4.20

3.42

6.27

5.73

5.12

4.50

3.72

6.46

6.00

5.40

4.79

4.02

0.57

0.45

0.61

0.49

0.37

0.65

0.53

0.41

0.69

0.57

0.45

0.33

0.61

0.49

0.37

0.77

0.65

0.53

0.41

0.29

0.81

0.69

0.57

0.45

0.33

0.85

0.73

0.61

0.49

0.37

0.89

0.77

0.65

0.53

0.41

0.93

0.81

0.69

0.57

0.45

0.97

0.85

0.73

0.61

0.49

1.00

0.89

0.77

0.65

0.53

1568
1646
1568
1646
1705
1568
1646
1705
1568
1646
1705
1784
1646
1705
1784
1568
1646
1705
1784
1882
1568
1646
1705
1784
1882
1568
1646
1705
1784
1882
1568
1646
1705
1784
1882
1568
1646
1705
1784
1882
1568
1646
1705
1784
1882
1568
1646
1705
1784
1882

6.19

6.46

6.19

6.46

6.77

6.19

6.46

6.77

6.19

6.46

6.77

7.10

6.46

6.77

7.10

6.19

6.46

6.77

7.10

7.37

6.19

6.46

6.77

7.10

7.37

6.19

6.46

6.77

7.10

7.37

6.19

6.46

6.77

7.10

7.37

6.19

6.46

6.77

7.10

7.37

6.19

6.46

6.77

7.10

7.37

6.19

6.46

6.77

7.10

7.37

3.53

2.91

3.77

3.17

2.50

4.02

3.43

2.77

4.27

3.68

3.04

2.34

3.94

3.31

2.63

4.76

4.20

3.59

2.91

2.14

5.01

4.46

3.86

3.19

2.43

5.26

4.72

4.13

3.48

2.73

5.51

4.98

4.40

3.76

3.02

5.75

5.23

4.67

4.04

3.32

6.00

5.49

4.94

4.33

3.61

6.19

5.75

5.21

4.61

3.91

0.57

0.45

0.61

0.49

0.37

0.65

0.53

0.41

0.69

0.57

0.45

0.33

0.61

0.49

0.37

0.77

0.65

0.53

0.41

0.29

0.81

0.69

0.57

0.45

0.33

0.85

0.73

0.61

0.49

0.37

0.89

0.77

0.65

0.53

0.41

0.93

0.81

0.69

0.57

0.45

0.97

0.85

0.73

0.61

0.49

1.00

0.89

0.77

0.65

0.53

1646
1744
1646
1744
1813
1646
1744
1813
1646
1744
1813
1882
1744
1813
1882
1646
1744
1813
1882
1980
1646
1744
1813
1882
1980
1646
1744
1813
1882
1980
1646
1744
1813
1882
1980
1646
1744
1813
1882
1980
1646
1744
1813
1882
1980
1646
1744
1813
1882
1980

5.94

6.27

5.94

6.27

6.60

5.94

6.27

6.60

5.94

6.27

6.60

6.93

6.27

6.60

6.93

5.94

6.27

6.60

6.93

7.26

5.94

6.27

6.60

6.93

7.26

5.94

6.27

6.60

6.93

7.26

5.94

6.27

6.60

6.93

7.26

5.94

6.27

6.60

6.93

7.26

5.94

6.27

6.60

6.93

7.26

5.94

6.27

6.60

6.93

7.26

3.39

2.82

3.62

3.07

2.44

3.86

3.32

2.71

4.10

3.57

2.97

2.29

3.82

3.23

2.56

4.57

4.08

3.50

2.84

2.11

4.81

4.33

3.76

3.12

2.40

5.05

4.58

4.03

3.40

2.69

5.29

4.83

4.29

3.67

2.98

5.52

5.08

4.55

3.95

3.27

5.76

5.33

4.82

4.23

3.56

5.94

5.58

5.08

4.50

3.85

0.57

0.45

0.61

0.49

0.37

0.65

0.53

0.41

0.69

0.57

0.45

0.33

0.61

0.49

0.37

0.77

0.65

0.53

0.41

0.29

0.81

0.69

0.57

0.45

0.33

0.85

0.73

0.61

0.49

0.37

0.89

0.77

0.65

0.53

0.41

0.93

0.81

0.69

0.57

0.45

0.97

0.85

0.73

0.61

0.49

1.00

0.89

0.77

0.65

0.53

1725
1784
1725
1784
1862
1725
1784
1862
1725
1784
1862
1940
1784
1862
1940
1725
1784
1862
1940
2038
1725
1784
1862
1940
2038
1725
1784
1862
1940
2038
1725
1784
1862
1940
2038
1725
1784
1862
1940
2038
1725
1784
1862
1940
2038
1725
1784
1862
1940
2038

5.72

6.05

5.72

6.05

6.33

5.72

6.05

6.33

5.72

6.05

6.33

6.71

6.05

6.33

6.71

5.72

6.05

6.33

6.71

7.04

5.72

6.05

6.33

6.71

7.04

5.72

6.05

6.33

6.71

7.04

5.72

6.05

6.33

6.71

7.04

5.72

6.05

6.33

6.71

7.04

5.72

6.05

6.33

6.71

7.04

5.72

6.05

6.33

6.71

7.04

3.26

2.72

3.49

2.96

2.34

3.72

3.21

2.59

3.95

3.45

2.85

2.21

3.69

3.10

2.48

4.40

3.93

3.35

2.75

2.04

4.63

4.17

3.61

3.02

2.32

4.86

4.42

3.86

3.29

2.60

5.09

4.66

4.11

3.56

2.89

5.32

4.90

4.36

3.82

3.17

5.55

5.14

4.62

4.09

3.45

5.72

5.38

4.87

4.36

3.73

0.57

0.45

0.61

0.49

0.37

0.65

0.53

0.41

0.69

0.57

0.45

0.33

0.61

0.49

0.37

0.77

0.65

0.53

0.41

0.29

0.81

0.69

0.57

0.45

0.33

0.85

0.73

0.61

0.49

0.37

0.89

0.77

0.65

0.53

0.41

0.93

0.81

0.69

0.57

0.45

0.97

0.85

0.73

0.61

0.49

1.00

0.89

0.77

0.65

0.53

1803
1862
1803
1862
1940
1803
1862
1940
1803
1862
1940
2038
1862
1940
2038
1803
1862
1940
2038
2097
1803
1862
1940
2038
2097
1803
1862
1940
2038
2097
1803
1862
1940
2038
2097
1803
1862
1940
2038
2097
1803
1862
1940
2038
2097
1803
1862
1940
2038
2097

51

PERFORMANCE DATA
COOLING operation at Rated frequency
SEZ-KA60VA/SUZ-KA60VA

CAPACITY : 5.5(kW) INPUT : 1960(W) SHF : 0.75

OUTDOOR D.B.()

INDOOR INDOOR

D.B.() W.B.()

21
21
22
22
22
23
23
23
24
24
24
24
25
25
25
26
26
26
26
26
27
27
27
27
27
28
28
28
28
28
29
29
29
29
29
30
30
30
30
30
31
31
31
31
31
32
32
32
32
32

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature
SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB : Wet-bulb temperature

18
20
18
20
22
18
20
22
18
20
22
24
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

5.39

5.67

5.39

5.67

6.00

5.39

5.67

6.00

5.39

5.67

6.00

6.33

5.67

6.00

6.33

5.39

5.67

6.00

6.33

6.66

5.39

5.67

6.00

6.33

6.66

5.39

5.67

6.00

6.33

6.66

5.39

5.67

6.00

6.33

6.66

5.39

5.67

6.00

6.33

6.66

5.39

5.67

6.00

6.33

6.66

5.39

5.67

6.00

6.33

6.66

35 40 46

3.07

2.55

3.29

2.78

2.22

3.50

3.00

2.46

3.72

3.23

2.70

2.09

3.46

2.94

2.34

4.15

3.68

3.18

2.59

1.93

4.37

3.91

3.42

2.85

2.20

4.58

4.14

3.66

3.10

2.46

4.80

4.36

3.90

3.35

2.73

5.01

4.59

4.14

3.61

2.99

5.23

4.82

4.38

3.86

3.26

5.39

5.04

4.62

4.11

3.53

0.57

0.45

0.61

0.49

0.37

0.65

0.53

0.41

0.69

0.57

0.45

0.33

0.61

0.49

0.37

0.77

0.65

0.53

0.41

0.29

0.81

0.69

0.57

0.45

0.33

0.85

0.73

0.61

0.49

0.37

0.89

0.77

0.65

0.53

0.41

0.93

0.81

0.69

0.57

0.45

0.97

0.85

0.73

0.61

0.49

1.00

0.89

0.77

0.65

0.53

1921
1999
1921
1999
2078
1921
1999
2078
1921
1999
2078
2156
1999
2078
2156
1921
1999
2078
2156
2234
1921
1999
2078
2156
2234
1921
1999
2078
2156
2234
1921
1999
2078
2156
2234
1921
1999
2078
2156
2234
1921
1999
2078
2156
2234
1921
1999
2078
2156
2234

4.95

5.28

4.95

5.28

5.61

4.95

5.28

5.61

4.95

5.28

5.61

5.94

5.28

5.61

5.94

4.95

5.28

5.61

5.94

6.27

4.95

5.28

5.61

5.94

6.27

4.95

5.28

5.61

5.94

6.27

4.95

5.28

5.61

5.94

6.27

4.95

5.28

5.61

5.94

6.27

4.95

5.28

5.61

5.94

6.27

4.95

5.28

5.61

5.94

6.27

2.82

2.38

3.02

2.59

2.08

3.22

2.80

2.30

3.42

3.01

2.52

1.96

3.22

2.75

2.20

3.81

3.43

2.97

2.44

1.82

4.01

3.64

3.20

2.67

2.07

4.21

3.85

3.42

2.91

2.32

4.41

4.07

3.65

3.15

2.57

4.60

4.28

3.87

3.39

2.82

4.80

4.49

4.10

3.62

3.07

4.95

4.70

4.32

3.86

3.32

0.57

0.45

0.61

0.49

0.37

0.65

0.53

0.41

0.69

0.57

0.45

0.33

0.61

0.49

0.37

0.77

0.65

0.53

0.41

0.29

0.81

0.69

0.57

0.45

0.33

0.85

0.73

0.61

0.49

0.37

0.89

0.77

0.65

0.53

0.41

0.93

0.81

0.69

0.57

0.45

0.97

0.85

0.73

0.61

0.49

1.00

0.89

0.77

0.65

0.53

2038
2097
2038
2097
2195
2038
2097
2195
2038
2097
2195
2254
2097
2195
2254
2038
2097
2195
2254
2332
2038
2097
2195
2254
2332
2038
2097
2195
2254
2332
2038
2097
2195
2254
2332
2038
2097
2195
2254
2332
2038
2097
2195
2254
2332
2038
2097
2195
2254
2332

4.57

4.90

4.57

4.90

5.23

4.57

4.90

5.23

4.57

4.90

5.23

5.61

4.90

5.23

5.61

4.57

4.90

5.23

5.61

5.89

4.57

4.90

5.23

5.61

5.89

4.57

4.90

5.23

5.61

5.89

4.57

4.90

5.23

5.61

5.89

4.57

4.90

5.23

5.61

5.89

4.57

4.90

5.23

5.61

5.89

4.57

4.90

5.23

5.61

5.89

2.60

2.20

2.78

2.40

1.93

2.97

2.59

2.14

3.15

2.79

2.35

1.85

2.99

2.56

2.08

3.52

3.18

2.77

2.30

1.71

3.70

3.38

2.98

2.52

1.94

3.88

3.57

3.19

2.75

2.18

4.06

3.77

3.40

2.97

2.41

4.25

3.96

3.61

3.20

2.65

4.43

4.16

3.81

3.42

2.88

4.57

4.36

4.02

3.65

3.12

0.57

0.45

0.61

0.49

0.37

0.65

0.53

0.41

0.69

0.57

0.45

0.33

0.61

0.49

0.37

0.77

0.65

0.53

0.41

0.29

0.81

0.69

0.57

0.45

0.33

0.85

0.73

0.61

0.49

0.37

0.89

0.77

0.65

0.53

0.41

0.93

0.81

0.69

0.57

0.45

0.97

0.85

0.73

0.61

0.49

1.00

0.89

0.77

0.65

0.53

2117
2215
2117
2215
2274
2117
2215
2274
2117
2215
2274
2352
2215
2274
2352
2117
2215
2274
2352
2430
2117
2215
2274
2352
2430
2117
2215
2274
2352
2430
2117
2215
2274
2352
2430
2117
2215
2274
2352
2430
2117
2215
2274
2352
2430
2117
2215
2274
2352
2430

52

PERFORMANCE DATA
COOLING operation at Rated frequency
SEZ-KA71VA/SUZ-KA71VA

CAPACITY : 7.1(kW) INPUT : 2460(W) SHF : 0.74

OUTDOOR D.B.()

INDOOR

D.B.(

INDOOR

)

W.B.()



21
21 20 8.70 3.83 0.44 2066 8.34 3.67 0.44 2189 8.09 3.56 0.44 2239 7.81 3.44 0.44 2337
22 18 8.34 5.01 0.60 1968 7.99 4.79 0.60 2066 7.67 4.60 0.60 2165 7.38 4.43 0.60 2263
22 20 8.70 4.17 0.48 2066 8.34 4.00 0.48 2189 8.09 3.89 0.48 2239 7.81 3.75 0.48 2337
22 22 9.05 3.26 0.36 2140 8.73 3.14 0.36 2276 8.52 3.07 0.36 2337 8.17 2.94 0.36 2435
23 18 8.34 5.34 0.64 1968 7.99 5.11 0.64 2066 7.67 4.91 0.64 2165 7.38 4.73 0.64 2263
23 20 8.70 4.52 0.52 2066 8.34 4.34 0.52 2189 8.09 4.21 0.52 2239 7.81 4.06 0.52 2337
23 22 9.05 3.62 0.40 2140 8.73 3.49 0.40 2276 8.52 3.41 0.40 2337 8.17 3.27 0.40 2435
24 18 8.34 5.67 0.68 1968 7.99 5.43 0.68 2066 7.67 5.21 0.68 2165 7.38 5.02 0.68 2263
24 20 8.70 4.87 0.56 2066 8.34 4.67 0.56 2189 8.09 4.53 0.56 2239 7.81 4.37 0.56 2337
24 22 9.05 3.98 0.44 2140 8.73 3.84 0.44 2276 8.52 3.75 0.44 2337 8.17 3.59 0.44 2435
24 24 9.51 3.04 0.32 2239 9.16 2.93 0.32 2362 8.95 2.86 0.32 2435 8.66 2.77 0.32 2558
25 20 8.70 5.22 0.60 2066 8.34 5.01 0.60 2189 8.09 4.86 0.60 2239 7.81 4.69 0.60 2337
25 22 9.05 4.35 0.48 2140 8.73 4.19 0.48 2276 8.52 4.09 0.48 2337 8.17 3.92 0.48 2435
25 24 9.51 3.43 0.36 2239 9.16 3.30 0.36 2362 8.95 3.22 0.36 2435 8.66 3.12 0.36 2558
26 18 8.34 6.34 0.76 1968 7.99 6.07 0.76 2066 7.67 5.83 0.76 2165 7.38 5.61 0.76 2263
26 20 8.70 5.57 0.64 2066 8.34 5.34 0.64 2189 8.09 5.18 0.64 2239 7.81 5.00 0.64 2337
26 22 9.05 4.71 0.52 2140 8.73 4.54 0.52 2276 8.52 4.43 0.52 2337 8.17 4.25 0.52 2435
26 24 9.51 3.81 0.40 2239 9.16 3.66 0.40 2362 8.95 3.58 0.40 2435 8.66 3.46 0.40 2558
26 26 9.80 2.74 0.28 2362 9.51 2.66 0.28 2485 9.37 2.62 0.28 2558 9.09 2.54 0.28 2632
27 18 8.34 6.67 0.80 1968 7.99 6.39 0.80 2066 7.67 6.13 0.80 2165 7.38 5.91 0.80 2263
27 20 8.70 5.91 0.68 2066 8.34 5.67 0.68 2189 8.09 5.50 0.68 2239 7.81 5.31 0.68 2337
27 22 9.05 5.07 0.56 2140 8.73 4.89 0.56 2276 8.52 4.77 0.56 2337 8.17 4.57 0.56 2435
27 24 9.51 4.19 0.44 2239 9.16 4.03 0.44 2362 8.95 3.94 0.44 2435 8.66 3.81 0.44 2558
27 26 9.80 3.14 0.32 2362 9.51 3.04 0.32 2485 9.37 3.00 0.32 2558 9.09 2.91 0.32 2632
28 18 8.34 7.01 0.84 1968 7.99 6.71 0.84 2066 7.67 6.44 0.84 2165 7.38 6.20 0.84 2263
28 20 8.70 6.26 0.72 2066 8.34 6.01 0.72 2189 8.09 5.83 0.72 2239 7.81 5.62 0.72 2337
28 22 9.05 5.43 0.60 2140 8.73 5.24 0.60 2276 8.52 5.11 0.60 2337 8.17 4.90 0.60 2435
28 24 9.51 4.57 0.48 2239 9.16 4.40 0.48 2362 8.95 4.29 0.48 2435 8.66 4.16 0.48 2558
28 26 9.80 3.53 0.36 2362 9.51 3.43 0.36 2485 9.37 3.37 0.36 2558 9.09 3.27 0.36 2632
29 18 8.34 7.34 0.88 1968 7.99 7.03 0.88 2066 7.67 6.75 0.88 2165 7.38 6.50 0.88 2263
29 20 8.70 6.61 0.76 2066 8.34 6.34 0.76 2189 8.09 6.15 0.76 2239 7.81 5.94 0.76 2337
29 22 9.05 5.79 0.64 2140 8.73 5.59 0.64 2276 8.52 5.45 0.64 2337 8.17 5.23 0.64 2435
29 24 9.51 4.95 0.52 2239 9.16 4.76 0.52 2362 8.95 4.65 0.52 2435 8.66 4.50 0.52 2558
29 26 9.80 3.92 0.40 2362 9.51 3.81 0.40 2485 9.37 3.75 0.40 2558 9.09 3.64 0.40 2632
30 18 8.34 7.68 0.92 1968 7.99 7.35 0.92 2066 7.67 7.05 0.92 2165 7.38 6.79 0.92 2263
30 20 8.70 6.96 0.80 2066 8.34 6.67 0.80 2189 8.09 6.48 0.80 2239 7.81 6.25 0.80 2337
30 22 9.05 6.16 0.68 2140 8.73 5.94 0.68 2276 8.52 5.79 0.68 2337 8.17 5.55 0.68 2435
30 24 9.51 5.33 0.56 2239 9.16 5.13 0.56 2362 8.95 5.01 0.56 2435 8.66 4.85 0.56 2558
30 26 9.80 4.31 0.44 2362 9.51 4.19 0.44 2485 9.37 4.12 0.44 2558 9.09 4.00 0.44 2632
31 18 8.34 8.01 0.96 1968 7.99 7.67 0.96 2066 7.67 7.36 0.96 2165 7.38 7.09 0.96 2263
31 20 8.70 7.31 0.84 2066 8.34 7.01 0.84 2189 8.09 6.80 0.84 2239 7.81 6.56 0.84 2337
31 22 9.05 6.52 0.72 2140 8.73 6.29 0.72 2276 8.52 6.13 0.72 2337 8.17 5.88 0.72 2435
31 24 9.51 5.71 0.60 2239 9.16 5.50 0.60 2362 8.95 5.37 0.60 2435 8.66 5.20 0.60 2558
31 26 9.80 4.70 0.48 2362 9.51 4.57 0.48 2485 9.37 4.50 0.48 2558 9.09 4.36 0.48 2632
32 18 8.34 8.34 1.00 1968 7.99 7.99 1.00 2066 7.67 7.67 1.00 2165 7.38 7.38 1.00 2263
32 20 8.70 7.65 0.88 2066 8.34 7.34 0.88 2189 8.09 7.12 0.88 2239 7.81 6.87 0.88 2337
32 22 9.05 6.88 0.76 2140 8.73 6.64 0.76 2276 8.52 6.48 0.76 2337 8.17 6.21 0.76 2435
32 24 9.51 6.09 0.64 2239 9.16 5.86 0.64 2362 8.95 5.73 0.64 2435 8.66 5.54 0.64 2558
32 26 9.80 5.09 0.52 2362 9.51 4.95 0.52 2485 9.37 4.87 0.52 2558 9.09 4.73 0.52 2632

18 8.34 4.67 0.56 1968 7.99 4.47 0.56 2066 7.67 4.29 0.56 2165 7.38 4.14 0.56 2263

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

21 25 27

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature
SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB : Wet-bulb temperature

30

53

PERFORMANCE DATA
COOLING operation at Rated frequency
SEZ-KA71VA/SUZ-KA71VA

CAPACITY : 7.1(kW) INPUT : 2460(W) SHF : 0.74

OUTDOOR D.B.()

INDOOR

INDOOR

D.B.()

W.B.()

21 18 6.96 3.90 0.56 2411 6.39 3.58 0.56 2558 5.89 3.30 0.56 2657
21 20 7.31 3.22 0.44 2509 6.82 3.00 0.44 2632 6.32 2.78 0.44 2780
22 18 6.96 4.17 0.60 2411 6.39 3.83 0.60 2558 5.89 3.54 0.60 2657
22 20 7.31 3.51 0.48 2509 6.82 3.27 0.48 2632 6.32 3.03 0.48 2780
22 22 7.74 2.79 0.36 2608 7.24 2.61 0.36 2755 6.75 2.43 0.36 2854
23 18 6.96 4.45 0.64 2411 6.39 4.09 0.64 2558 5.89 3.77 0.64 2657
23 20 7.31 3.80 0.52 2509 6.82 3.54 0.52 2632 6.32 3.29 0.52 2780
23 22 7.74 3.10 0.40 2608 7.24 2.90 0.40 2755 6.75 2.70 0.40 2854
24 18 6.96 4.73 0.68 2411 6.39 4.35 0.68 2558 5.89 4.01 0.68 2657
24 20 7.31 4.10 0.56 2509 6.82 3.82 0.56 2632 6.32 3.54 0.56 2780
24 22 7.74 3.41 0.44 2608 7.24 3.19 0.44 2755 6.75 2.97 0.44 2854
24 24 8.17 2.61 0.32 2706 7.67 2.45 0.32 2829 7.24 2.32 0.32 2952
25 20 7.31 4.39 0.60 2509 6.82 4.09 0.60 2632 6.32 3.79 0.60 2780
25 22 7.74 3.71 0.48 2608 7.24 3.48 0.48 2755 6.75 3.24 0.48 2854
25 24 8.17 2.94 0.36 2706 7.67 2.76 0.36 2829 7.24 2.61 0.36 2952
26 18 6.96 5.29 0.76 2411 6.39 4.86 0.76 2558 5.89 4.48 0.76 2657
26 20 7.31 4.68 0.64 2509 6.82 4.36 0.64 2632 6.32 4.04 0.64 2780
26 22 7.74 4.02 0.52 2608 7.24 3.77 0.52 2755 6.75 3.51 0.52 2854
26 24 8.17 3.27 0.40 2706 7.67 3.07 0.40 2829 7.24 2.90 0.40 2952
26 26 8.59 2.41 0.28 2804 8.09 2.27 0.28 2927 7.60 2.13 0.28 3050
27 18 6.96 5.57 0.80 2411 6.39 5.11 0.80 2558 5.89 4.71 0.80 2657
27 20 7.31 4.97 0.68 2509 6.82 4.63 0.68 2632 6.32 4.30 0.68 2780
27 22 7.74 4.33 0.56 2608 7.24 4.06 0.56 2755 6.75 3.78 0.56 2854
27 24 8.17 3.59 0.44 2706 7.67 3.37 0.44 2829 7.24 3.19 0.44 2952
27 26 8.59 2.75 0.32 2804 8.09 2.59 0.32 2927 7.60 2.43 0.32 3050
28 18 6.96 5.84 0.84 2411 6.39 5.37 0.84 2558 5.89 4.95 0.84 2657
28 20 7.31 5.27 0.72 2509 6.82 4.91 0.72 2632 6.32 4.55 0.72 2780
28 22 7.74 4.64 0.60 2608 7.24 4.35 0.60 2755 6.75 4.05 0.60 2854
28 24 8.17 3.92 0.48 2706 7.67 3.68 0.48 2829 7.24 3.48 0.48 2952
28 26 8.59 3.09 0.36 2804 8.09 2.91 0.36 2927 7.60 2.73 0.36 3050
29 18 6.96 6.12 0.88 2411 6.39 5.62 0.88 2558 5.89 5.19 0.88 2657
29 20 7.31 5.56 0.76 2509 6.82 5.18 0.76 2632 6.32 4.80 0.76 2780
29 22 7.74 4.95 0.64 2608 7.24 4.63 0.64 2755 6.75 4.32 0.64 2854
29 24 8.17 4.25 0.52 2706 7.67 3.99 0.52 2829 7.24 3.77 0.52 2952
29 26 8.59 3.44 0.40 2804 8.09 3.24 0.40 2927 7.60 3.04 0.40 3050
30 18 6.96 6.40 0.92 2411 6.39 5.88 0.92 2558 5.89 5.42 0.92 2657
30 20 7.31 5.85 0.80 2509 6.82 5.45 0.80 2632 6.32 5.06 0.80 2780
30 22 7.74 5.26 0.68 2608 7.24 4.92 0.68 2755 6.75 4.59 0.68 2854
30 24 8.17 4.57 0.56 2706 7.67 4.29 0.56 2829 7.24 4.06 0.56 2952
30 26 8.59 3.78 0.44 2804 8.09 3.56 0.44 2927 7.60 3.34 0.44 3050
31 18 6.96 6.68 0.96 2411 6.39 6.13 0.96 2558 5.89 5.66 0.96 2657
31 20 7.31 6.14 0.84 2509 6.82 5.73 0.84 2632 6.32 5.31 0.84 2780
31 22 7.74 5.57 0.72 2608 7.24 5.21 0.72 2755 6.75 4.86 0.72 2854
31 24 8.17 4.90 0.60 2706 7.67 4.60 0.60 2829 7.24 4.35 0.60 2952
31 26 8.59 4.12 0.48 2804 8.09 3.89 0.48 2927 7.60 3.65 0.48 3050
32 18 6.96 6.96 1.00 2411 6.39 6.39 1.00 2558 5.89 5.89 1.00 2657
32 20 7.31 6.44 0.88 2509 6.82 6.00 0.88 2632 6.32 5.56 0.88 2780
32 22 7.74 5.88 0.76 2608 7.24 5.50 0.76 2755 6.75 5.13 0.76 2854
32 24 8.17 5.23 0.64 2706 7.67 4.91 0.64 2829 7.24 4.63 0.64 2952
32 26 8.59 4.47 0.52 2804 8.09 4.21 0.52 2927 7.60 3.95 0.52 3050

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature
SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB : Wet-bulb temperature

35 40 46

54

PERFORMANCE DATA
HEATING operation
SLZ-KA25VA(L)/SUZ-KA25VA(H) at Rated frequency

CAPACITY : 3.0(kW) INPUT : 830(W)

OUTDOOR W.B.()

INDOOR

D.B.()

15
21
26

-15

Q INPUT

1.50

1.41

1.23

432
460
498

-10

Q INPUT-5Q INPUT0Q INPUT5Q INPUT10Q INPUT15Q INPUT20Q INPUT

2.67

1.89

1.80

1.62

540
581
623

2.28

2.16

2.01

647
689
730

2.55

2.37

SLZ-KA35VA(L)/SUZ-KA35VA(H) at Rated frequency

CAPACITY : 4.0(kW) INPUT : 1100(W)

OUTDOOR W.B.()

2.00

1.88

1.64

-15

-10

Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUTQ INPUT

572

2.52 715 3.04 858 3.56 968 4.08 1045 4.60 1111 5.0 8 1144 5 . 60 11 6 6

609

2.40 770 2.88 913 3.40 1012 3.88 1089 4.40 1144 4.88 1177 5.38 1221

660

2.16 825 2.68 968 3.16 1067 3.68 1144 4.20 1199 4.68 1232 5.20 1265

-5 0 5 10 15 20

INDOOR

D.B.()

15
21
26

SLZ-KA50VA(L)/SUZ-KA50VA at Rated frequency

CAPACITY : 5.0(kW) INPUT : 1550(W)

OUTDOOR W.B.()

INDOOR

D.B.()

15
21
26

3.15

3.00

2.70

-10

1008
1085
1163

-5 0 5 10 15 20

Q INPUT

1209

3.80
1287

3.60
1364

3.35

Q

4.45

4.25

3.95

INPUT Q INPUT Q INPUT Q INPUT Q INPUTQ INPUT

1364
1426
1504

5.10

4.85

4.60

1473
1535
1612

730
764
805

3.06

2.91

2.76

5.75

5.50

5.25

789
822
863

1566
1612
1690

3.45

3.30

3.15

6.35

6.10

5.85

838
863
905

1612
1659
1739

3.81

3.66

3.51

7.00

6.73

6.50

863
888
930

1643
1721
1783

4.20

4.04

3.90

880
921
955

55

SEZ-KC25VA/SUZ-KA25VA(H) at Rated frequency

CAPACITY : 3.0(kW) INPUT : 830(W)

OUTDOOR W.B.()

INDOOR

D.B.()

15
21
26

-15

Q INPUT

1.50

1.41

1.23

-10

Q INPUT-5Q INPUT0Q INPUT5Q INPUT10Q INPUT15Q INPUT20Q INPUT

432

1.89 540 2.28 647 2.67 730 3.06 789 3.45 838 3.81 863 4.20 880

460

1.80 581 2.16 689 2.55 764 2.91 822 3.30 863 3.66 888 4.04 921

498

1.62 623 2.01 730 2.37 805 2.76 863 3.15 905 3.51 930 3.90 955

SEZ-KA35VA/SUZ-KA35VA(H) at Rated frequency

CAPACITY : 4.0(kW) INPUT : 1100(W)

OUTDOOR W.B.()

INDOOR

D.B.()

15
21
26

-15

Q INPUT

2.00

1.88

1.64

-10

Q INPUT-5Q INPUT0Q INPUT5Q INPUT10Q INPUT15Q INPUT20Q INPUT

572

2.52 715 3.04 858 3.56 968 4.08 1045 4.60 1111 5.08 1144 5.60 1166

609

2.40 770 2.88 913 3.40 1012 3.88 1089 4.40 1144 4.88 1177 5.38 1221

660

2.16 825 2.68 968 3.16 1067 3.68 1144 4.20 1199 4.68 1232 5.20 1265

SEZ-KA50VA/SUZ-KA50VA at Rated frequency

CAPACITY : 5.9(kW) INPUT : 1840(W)

OUTDOOR W.B.()

INDOOR

D.B.()

15
21
26

-10

Q INPUT-5Q INPUT0Q INPUT5Q INPUT10Q INPUT15Q INPUT20Q INPUT

3.72

3.54

3.19

1196
1288
1380

4.48

4.25

3.95

1435
1527
1619

5.25

5.02

4.66

1619
1693
1785

6.02

5.72

5.43

1748
1822
1914

6.79

6.49

6.20

1858
1914
2006

7.49

7.20

6.90

1914
1969
2061

8.26

7.94

7.67

1950
2042

2116

SEZ-KA60VA/SUZ-KA60VA at Rated frequency

CAPACITY : 6.9(kW) INPUT : 2450(W)

OUTDOOR W.B.()

INDOOR

D.B.()

15
21
26

-10

Q INPUT-5Q INPUT0Q INPUT5Q INPUT10Q INPUT15Q INPUT20Q INPUT

2156

4.35

4.14

3.73

1593
1715
1838

5.24

4.97

4.62

1911
2034
2156

6.14

5.87

5.45

2254
2377

7.04

6.69

6.35

SEZ-KA71VA/SUZ-KA71VA at Rated frequency

CAPACITY : 8.1(kW) INPUT : 2360(W)

OUTDOOR W.B.()

INDOOR

D.B.()

15
21
26

-10

Q INPUT-5Q INPUT0Q INPUT5Q INPUT10Q INPUT15Q INPUT20Q INPUT

5.10

4.86

4.37

1534
1652
1770

6.16

5.83

5.43

1841
1959
2077

7.21

6.89

6.40

2077
2171
2289

8.26

7.86

7.45

2328
2426
2548

2242
2336
2454

7.94

7.59

7.25

9.32

8.91

8.51

2475
2548
2671

2384
2454
2572

8.76

8.42

8.07

10.29

9.88

9.48

2548
2622
2744

2454
2525
2643

9.66

9.28

8.97

11. 34

10.89

10.53

2597
2720
2818

2502
2620
2714

56

10

ACTUATOR CONTROL

SUZ-KA25VA(H) SUZ-KA35VA(H) SUZ-KA50VA SUZ-KA60VA SUZ-KA71VA

10-1. Outdoor fan motor control

The fan motor turns ON/OFF, interlocking with the compressor.
[ON] The fan motor turns ON 5 seconds before the compressor starts up.
[OFF] The fan motor turns OFF 15 seconds after the compressor has stopped running.

ON

Compressor

OFF

ON

Outdoor fan

OFF

5 seconds 15 seconds

10-2. R.V. coil control

Heating

Cooling . . . . . . . . . . . . . . . . . OFF

Dry

. . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . .

Compressor

R.V.coil

Outdoor fan

motor

ON

OFF

ON

OFF

ON

OFF

ON

OFF

<COOL>

ON or OFF

NOTE: The 4-way valve reverses for 5 seconds

<HEAT>

5 seconds

10-3. Relation between main sensor and actuator

SUZ-KA25VA(H).TH SUZ-KA35VA(H).TH

Sensor

Discharge temperature thermistor

Indoor pipe temperature thermistor

Defrost thermistor

Fin temperature thermistor

Ambient temperature thermistor

Protection

Cooling: Coil frost prevention

Heating: High pressure protection

Cooling: High pressure protection

Heating: Defrosting

Protection

Cooling: Low ambient temperature operation

Heating: Defrosting (Heater)

Purpose

Compressor

right before start-up of the compressor.

5 seconds

ON or OFF

Actuator

LEV

Outdoor

fan motor

RV-coil

Indoor

fan motor

Defrost

heater

SUZ-KA25VA(H)R1.TH SUZ-KA35VA(H)R1.TH

esopruProsneS

Discharge temperature
thermistor

Indoor coil temperature
thermistor

Defrost thermistor Heating: Defrosting

Fin temperature thermistor Protection

Ambient temperature
thermistor

Outdoor heat exchanger tem­perature thermistor

Protection

Cooling: Coil frost prevention
Heating: High pressure protec-

tion

Cooling: Low ambient tempera­ture operation

Heating: Defrosting (Heater)

Cooling: Low ambient tempera­ture operation

Cooling: High pressure protec­tion

Actuator

Compressor

LEV

Outdoor fan

motor

R.V.coil

Indoor fan

żż
ż

żż
żżżżż

żż
żżż

żżż
żżż

5757

motor

Defrost

heater

ż

SUZ-KA50VA/VA1/VAR2.TH SUZ-KA60VA/VA1/VAR2.TH SUZ-KA71VA/VA1.TH

Actuator

Outdoor
fan motor

4-way

valve

Sensor

Discharge temperature thermistor

Indoor pipe temperature thermistor

Defrost thermistor

Fin temperature thermistor

Ambient temperature thermistor

Outdoor heat exchanger temperature

11

SERVICE FUNCTIONS

Purpose

Protection

Cooling: Coil frost prevention

Heating: High pressure protection

Heating: Defrosting

Protection

Protection

Cooling: High pressure protection

Compressor LEV

SUZ-KA25VA(H) SUZ-KA35VA(H)

CHANGE IN DEFROST SETTING

<JS> When the JS wire of the outdoor Inverter P.C. board is cut/ soldered, the defrost finish temperature is changed.
(Refer to 12-6-1 SUZ-KA25/35VA(H).TH)
(Refer to 12-6-3 SUZ-KA25/35VA(H)R1.TH)

Jumper wire

(Initial setting)

JS

Serial No.

soldered

none

(cut)

SUZ-KA25VAH SUZ-KA35VAHSUZ-KA25VA

5

8

— — — ~67P00330 68P00331~

8

15

Defrost finish temperature

SUZ-KA35VA

10

13

13

15

10

13

12

TROUBLESHOOTING

SUZ-KA25VA(H) SUZ-KA35VA(H)
SUZ-KA50VA SUZ-KA60VA SUZ-KA71VA

12-1. Cautions on troubleshooting

1. Before troubleshooting, check the following:

1) Check the power supply voltage.

2) Check the indoor/outdoor connecting wire for miswiring.

2. Take care the following during servicing.

1)

Before servicing the air conditioner, be sure to turn OFF the main unit first with the remote controller, and turn off the breaker.

2) Be sure to turn OFF the power supply before removing the front panel, the cabinet, the top panel, and the electronic
control P.C. board.

3) When removing the electrical parts, be careful of the residual voltage of smoothing capacitor.

4) When removing the electronic control P.C. board, hold the edge of the board with care NOT to apply stress on the

components.

5) When connecting or disconnecting the connectors, hold the housing of the connector. DO NOT pull the lead wires.

Lead wire

3. Troubleshooting procedure

1) First, check if the OPERATION INDICATOR lamp is blinking on and off to indicate an abnormality. To make sure,
check how many times the abnormality indication is blinking on and off before starting service work.

2) Before servicing check that the connector and terminal are connected properly.

3) If the electronic control P.C. board is supposed to be defective, check the copper foil pattern for disconnection and
the components for bursting and discoloration.

4) When troubleshooting, refer to 12-2. and 12-3.

Housing point

58

12-2. Failure mode recall function

As this air conditioner has a function to memorize all the failures that had happened, the latest failure detail can be
recalled by following the procedures below.
Use this function when the check code is not displayed with wired remote controller or the remote controller at use is
wireless type.

12-2-1. Flow chart of the indoor/outdoor unit failure mode recall function

 While pressing both OPERATION SELECT
button and TOO COOL button on the

O

O

Operational procedure (For wireless remote controller)

Setting up the failure mode recall function

Turn ON the power supply.
 While pressing both OPERATION SELECT button and TOO COOL
button on the remote controller at the same time, press RESET button.
 First, release RESET button.
And release the other two buttons since all LCD in operation display
section of the remote controller is displayed after 3 seconds.

1
Press OPERATE/STOP (ON/OFF) button of the remote controller
(the set temperature is displayed).

Does OPERATION INDICATOR lamp on the indoor
unit blink at the interval of 0.5 seconds?
Blinks: Either indoor or outdoor unit is abnormal.
Beep sounds are emitted at the same timing of the
blinking of OPERATION INDICATOR lamp. 2

Judgment of indoor/outdoor abnormality

Before blinking, does POWER
lamp stay ON for 3 seconds?
Stays ON for 3 seconds (without beep):
The outdoor unit is abnormal.

The indoor unit is abnormal.
Check the blinking pattern, and confirm the
abnormal point.
Make sure to check at least two consecutive blinking cycles. 2

Yes

(Blinks)

No

No

(OFF)

Yes

Indoor unit is normal.
There is a possibility that the plasma or outdoor unit is abnormal.
Confirm the failure detail on the LED display of the outdoor
controller board.(refer to 12-2-4.)

The outdoor unit is abnormal.
Check the blinking pattern, and confirm the abnormal
point(12-2.3.).
Make sure to check at least two consecutive blinking cycles. 3

T
COOL

OO

AU

HEA

L

COO

TO

DR

T

ON/OFF

T

SELECT

N

A

F

E

N

A

V

Y

remote controller at the same time,

E

press RESET button.

TIM

 First, release RESET button.

SET

RE

And release the other two buttons since all LCD
in operation display section of the remote controller
is displayed after 3 seconds.

h

TOO

TOO

WARM

COOL

1. Regardless of normal or abnormal, a short
beep is emitted once as the signal is received.

Releasing the failure mode recall function

Release the failure mode recall function by the following procedures.
With the remote controller headed towards the indoor unit, press any button
that is not used in this failure mode recall function (e.g. TIMER button) .
OR

Turn OFF the power supply and turn ON it again.
Press RESET button of the remote controller.

OPERATION INDICATOR lamp

Repair the defective parts.

Note1. Make sure to release the failure mode recall function once it is set up, otherwise the unit cannot operate properly.

2. If the abnormal condition is not deleted from the memory, the last abnormal condition is kept memorized.

2. Blinking pattern when the indoor unit is abnormal:[Output pattern A]

Beeper sounds

OPERATION
INDICATOR
lamp blink
pattern

Beep

Self-check
starts
(Start signal
received)

Beep Beep Beep Beep Beep Beep

1st2nd3

Off

Approx. 2.5 sec.On0.5 sec.On0.5 sec.On0.5 sec.

Number of blinks/beeps in pattern indicates the check
code in the next page (i.e., n=5 for “P5”)

rd

th

n

On

0.5 sec.

Off

Approx. 2.5 sec.On0.5 sec.On0.5 sec.

nd

1st2

Number of blinks/beeps in pattern indicates
the check code in the next page

··· Repeated

3.Blinking pattern when the outdoor unit is abnormal:[Output pattern B]

Beeper sounds

OPERATION
INDICATOR
lamp blink
pattern

Beep Beep Beep Beep Beep Beep Beep

th

n

Off

Approx. 2.5 sec.OnApprox. 3 sec.On0.5 sec.On0.5 sec.

Self-check
starts
(Start signal
received)

1st2nd3

Off

Approx. 2.5 sec.OnApprox. 3 sec.On0.5 sec.On0.5 sec.On0.5 sec.On0.5 sec.

Number of blinks/beeps in pattern indicates the check
code in the next page (i.e., n=5 for “U2”)

rd

nd

1st2

Number of blinks/beeps in pattern indicates
the check code in the next page

··· Repeated

59

12-2-2. Wired remote controller



 

 Turn on the power.
 Press the [CHECK] button twice.
 Set refrigerant address with [TEMP] button

if system control is used.

 Press the [ON/OFF] button to stop the self-check.



TEMP.

MENU

MONITOR/SET

BACK DAY

PAR-21MAA

°C

CLOCK

ON/OFF

°C

OPERATION

SIMPLE

ON/OFF

FILTER

CHECK

CLEAR

 CHECK button
 Refrigerant address
 TEMP. button
 IC: Indoor unit

OC: Outdoor unit

 Check code

TEST



12-2-3. Failure mode table (Wireless remote controller/Wired remote controller)

[Output pattern A]Errors detected by indoor unit

Wired remote controller

Check code

P1
P2
P9
E6,E7
P4
P5
P6
EE
P8
E4, E5
–
–
Fb
E0, E3
E1, E2

[Output pattern B] Errors detected by unit other than indoor unit (outdoor unit, etc.)

Wired remote controller

Check code

U9,UH

–
–

• If the beeper does not sound again after the initial
does not come on,

• If the beeper sounds three times continuously “beep, beep, beep (0.4 + 0.4 + 0.4 sec.)” after the initial two beeps to confirm the self-check start signal
was received, the specified refrigerant address is incorrect.

• On wireless remote controller
The continuous buzzer sounds from receiving section of indoor unit.
Blink of operation lamp

• On wired remote controller
Check code displayed in the LCD.

Wireless remote controller

Beeper sounds/OPERATION INDICATOR

lamp blinks

(Number of times)

1

2

3
4
5
6
7
8

9
10
11
12

–

–

Wireless remote controller

Beeper sounds/OPERATION INDICATOR

lamp blinks

(Number of times)

1E9

2UP Compressor overcurrent interruption

3U3,U4 Open/short of outdoor unit thermistors

4UF Compressor overcurrent interruption (When compressor locked)

5U2 Abnormal high discharging temperature/insufficient refrigerant

6U1,Ud Abnormal high pressure (63H worked)/Overheating protection operation

7U5 Abnormal temperature of heat sink

8U8 Outdoor unit fan protection stop

9U6 Compressor overcurrent interruption/Abnormal of power module

10U7 Abnormality of super heat due to low discharge temperature

11

12
13
14Others Other errors

there are no error records.

Symptom Remark

Intake sensor error
Pipe (TH2) sensor error
Pipe (TH5) sensor error
Indoor/outdoor unit communication error
Drain sensor error/Float switch connector open
Drain pump error
Freezing/Overheating protection operation
Communication error between indoor and outdoor units
Pipe temperature error
Remote controller signal receiving error

–

–
Indoor unit control system error (memory error, etc.)
Remote controller transmission error
Remote controller control board error

Symptom Remark

Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit)

For details, check the LED display
of the outdoor controller board.

Abnormality such as overvoltage or voltage shortage and abnormal
synchronous signal to main circuit/Current sensor error

–

–

two beeps to confirm the self-check start signal was received and the OPERATION INDICATOR lamp

60

12-2-4. Outdoor unit failure mode table
SUZ-KA25VA(H) SUZ-KA35VA(H)

(Except for SUZ-KA25/35VA(H)R1.TH)

LED indication

(Outdoor unit)

1-time flash every

2.5 seconds
2-time flash

2.5 seconds OFF

3-time flash

2.5 seconds OFF
4-time flash

2.5 seconds OFF
5-time flash

2.5 seconds OFF

7-time flash

2.5 seconds OFF

8-time flash

2.5 seconds OFF
9-time flash

2.5 seconds OFF

10-time flash

2.5 seconds OFF

11-time flash

2.5 seconds OFF

12-time flash

2.5 seconds OFF

Lighting

+ Operation indicator lamp of the indoor unit (only the wireless remote controller use model) blinks twice.
Refer to 12-2-1. +3 and 12-2-3. [Outdoor pattern B].

Abnormal point
(Failure mode)

Outdoor thermistors

Outdoor control
system

Fin temperature/P.C.
board temperature
overheat

Converter control
system

Overcurrent protection

Overcurrent protection

Refrigerant system

High pressure
protection

Low discharge
temperature

Outdoor fan

Outdoor power
system (+)

Details of abnormal

Discharge temperature
Defrost thermistor
Ambient temperature thermistor

Fin temperature thermistor

P.C. board temperature thermistor

Nonvolatile memory data

Fin
temperature/P.C. board
temperature overheat
protection

DC voltage

Compressor each phase
current

Compressor open-phase
protection

Overcurrent protection

Compressor synchronous
abnormality
(Compressor start-up failure
protection)
Discharge temperature
overheat protection

High pressure protection
(Overheat protection)

Low discharge temperature
protection

Outdoor fan protection

Outdoor power system

When thermistors short or open during
compressor running.

When nonvolatile memory data
cannot be read properly, unit stops.

When fin temperature exceeds 83
(SUZ-KA25VA(H))/82 (SUZ-KA35VA(H)),
or P.C. board temperature exceeds 85
(SUZ-KA25VA(H))/81 (SUZ-KA35VA(H)).

When DC voltage of inverter cannot
be detected normally.
When compressor each phase current
cannot be detected normally.

When 14A (SUZ-KA25VA(H))/24A
(SUZ-KA35VA(H)) current flow into
intelligent power module (IPM).
When the open-phase protection of
compressor is detected.
When the interphase short out occurs
in the output of the intelligent power
module (IPM).
When the compressor winding
shorts out.

When 14A (SUZ-KA25VA(H))/24A (SUZ­KA35VA(H)) current flow into intelligent
power module (IPM).

When waveform of compressor
current is distorted.

When discharge temperature
exceeds 116

When the indoor coil thermistor (TH5)
exceeds 70 in HEAT mode.
When the defrost thermistor exceeds
70
When discharge temperature has
been 50

When outdoor fan has stopped within
30 seconds 3 times in a row after
outdoor fan start-up, unit stops.

When it consecutively occurs 3 times
that the compressor stops for
overcurrent protection or start-up
failure protection within 1 minute
after start-up.

Detection method



.



in COOL mode.



or less for 20 minutes.



Check point

•Check the outdoor thermistors

Defective outdoor thermistors can

+

be identified by checking the blinking

pattern of LED.

•Replace the inverter P.C. board.

•Check around outdoor unit.

•Check outdoor unit air passage.

•Check the outdoor fan motor.

•Check the inverter/compressor.

•Reconnect compressor connector.

•Check the inverter/compressor.

•Reconnect compressor connector.

•Check the inverter/compressor.

•Check the stop valve.

•Reconnect compressor connector.

•Check the inverter/compressor.

•Check the refrigerant circuit and
refrigerant amount.

•Check the LEV.

•Check the outdoor thermistors.

•Check refrigerant circuit and
refrigerant amount.

•Check the stop valve.

•Check the refrigerant circuit and
refrigerant amount.

•Check the LEV.

•Check the outdoor fan motor.

•Check the inverter P.C. board.

•Reconnect compressor connector.

•Check the inverter/compressor.

•Check the stop valve.

61

SUZ-KA50VA SUZ-KA60VA SUZ-KA71VA (Except for SUZ-KA50VAR2.TH)

Outdoor LED indication

LED1 LED2

Lighting

5 times

6 times

Once

Twice

3 times

4 times

9 times

5 times

6 times

7 times

Goes out

Goes out

Outdoor thermistors

Outdoor control system

Converter control
system

Abnormal point

(Failure mode)

Details of abnormal

Discharge temperature
thermistor

Defrost thermistor

Ambient temperature
thermistor

Fin temperature thermistor
P.C. board temperature

thermistor

Outdoor heat exchanger
temperature thermistor

EEPROM

Communication error
between P.C. boards

Communication between
P.C. boards protection

Current sensor

Current sensor protection

Zero cross detecting circuit

Zero cross detecting
circuit protection

Converter protection

Bus-bar voltage protection (1)

Bus-bar voltage protection (2)
+Even if this protection
stop is performed
continuously 3 times,
it does not mean the
abnormality in outdoor
power system.

When a short circuit is detected in the
thermistor during operation, or when an
open circuit is detected in the thermistor
after 10 minutes of compressor start-up.
When a short circuit is detected in the
thermistor during operation, or when an
open circuit is detected in the thermistor
after 5 minutes of compressor start-up.
When a short or open circuit is detected
in the thermistor during operation.

When a short circuit is detected in the
thermistor during operation, or when an
open circuit is detected in the thermistor
after 5 minutes (in cooling) and 10 minutes
(in heating) of compressor start-up.
When nonvolatile memory data cannot
be read properly, unit stops.
When the communication between
boards protection stop is continuously
performed twice.

Communication error occurs between
the electronic control P.C.board and
power board for more than 10 seconds.
Current sensor protection stop is
continuously performed twice.
When a short or open circuit is
detected in the current sensor during
compressor operating.
The protection stop of the zero cross
detecting circuit is continuously
performed 10 times.

When zero cross signal cannot be
detected while the compressor is
operating.
When a failure is detected in the
operation of the converter during
operation.
When the bus-bar voltage exceeds
400V or falls to 200V or below during
compressor operating.

When the bus-bar voltage exceeds
400V or falls to 50V or below during
compressor operating.

Detecting method Check point

• Check the outdoor thermistors.

• Replace the outdoor electronic
control P.C. board.

• Check the outdoor thermistors.

• Replace the outdoor electronic
control P.C. board.

• Check the connecting wire
between outdoor electronic
control P.C. board and power board.

• Replace the power board.

• Check the connecting wire among
electronic control P.C. board,
noise filter P.C. board and power
board.

• Replace the power board.

62

Outdoor LED indication

LED1 LED2

Once

3 times

4 times

Lighting

Goes out

Goes out

Goes out

Lighting

Overcurrent protection

Fin temperature/P.C.
board temperature
overheat

Refrigerant system

High pressure
protection

Low discharge
temperature

Outdoor fan

Outdoor power
system

Abnormal point

(Failure mode)

Details of abnormal Detecting method Check point

IPM protection

Lock protection

Fin temperature overheat
protection

P.C.boad temperature
overheat protection

Discharge temperature
overheat protection

HPS protection

High pressure protection
(Overheat protection)

Low discharge
temperature protection

Outdoor fan protection

Outdoor power system

When overcurrent is detected after
30 seconds of compressor start-up.
When overcurrent is detected within
30 seconds after the compressor
gets started.
When the fin temperature exceeds 87
during operation.

When the P.C. board temperature
exceeds 70 during operation.

When discharge temperature exceeds
116 .

When high-pressure is detected with the
high-pressure switch (HPS) during operation.
When the indoor coil thermistor (TH5)
exceeds 70 in HEAT mode.
When the outdoor heat exchanger thermistor
exceeds 70 in COOL mode.
When the frequency of the compressor
is kept 80Hz or more and discharge
temperature is kept under 39 for
more than 20 minutes.
When outdoor fan has stopped within
30 seconds 3 times in a row after
outdoor fan start -up,unit stops.
When IPM protection stop or lock
protection stop is continuously
performed 3 times within 1 minute after
the compressor get started, or when
converter protection stop or bus-bar
voltage protection stop is continuously
performed 3 times within 3 minutes
after start-up.

• Check the connection of the
compressor connecting wire.

• Check the inverter/ compressor.

• Check the stop valve.

• Check around outdoor unit.

• Check outdoor unit air passage.

• Check the outdoor fan motor.

• Check refrigerant circuit and
refrigerant amount.

• Check the LEV.

• Check the outdoor thermistors.

• Check refrigerant circuit and
refrigerant amount.

• Check the stop valve.

• Check refrigerant circuit and
refrigerant amount.

• Check the LEV.

• Check the outdoor fan motor.

• Reconnect compressor connector.

• Check the inverter/ compressor.

• Check the stop valve.

• Check the PAM module.

63

SUZ-KA25VA(H)R1.TH SUZ-KA35VA(H)R1.TH SUZ-KA50VAR2.TH

Abnormal point

(Failure mode/protection)

Outdoor power system

Discharge temperature
thermistor

Defrost thermistor

Fin temperature thermistor 3-time flash

P.C. board temperature
thermistor

Ambient temperature
thermistor

Overcurrent 11-time flash

Compressor synchronous
abnormality (Compressor start­up failure protection)

Discharge temperature

LED indication

(Outdoor P.C. board)

1-time flash every

2.5 seconds

2.5 seconds OFF

4-time flash

2.5 seconds OFF

2-time flash

2.5 seconds OFF

2.5 seconds OFF

12-time flash

2.5 seconds OFF

Condition

Overcurrent protection stop is
continuously performed 3 times within

—

—

1 minute after the compressor gets
started.

Thermistor shorts or opens during
compressor running. of outdoor thermistors".

Large current fl ows into intelligent
power module.

Waveform of compressor current is
distorted.

Temperature of discharge temperature
thermistor exceeds 116°C, compressor
stops.
Compressor can restart if discharge
temperature thermistor reads 100°C or
less 3 minutes later.

Correspondence

———)lamroN(enoN

Reconnect connectors.

•

•

Refer to 12-5. / "How
to check inverter/
compressor".
Check stop valve.

•

•

Refer to 12-5. 5 "Check

Defective outdoor
thermistors can be
identified by checking
the blinking pattern of
LED.

Reconnect compressor

•
connector.

•

Refer to 12-5. / "How
to check inverter/
compressor".
Check stop valve.

•

Reconnect compressor

•
connector.

•

Refer to 12-5. / "How
to check inverter/
compressor".

Check refrigerant circuit

•
and refrigerant amount.

•

Refer to 12-5. 9 "Check
of LEV".

High pressure

Fin temperature/P.C. board
temperature

Outdoor fan motor

Nonvolatile memory data 5-time flash

Discharge temperature

DC voltage 8-time flash

Each phase current of
compressor

Overcurrent Compressor open­phase

Stop valve (Closed valve) 14-time flash

7-time flash

2.5 seconds OFF

2.5 seconds OFF

2.5 seconds OFF

9-time flash

2.5 seconds OFF

10-time flash

2.5 seconds OFF

2.5 seconds OFF

Temperature indoor coil thermistor
exceeds 70°C in HEAT mode.

—

—

—

Temperature defrost thermistor
exceeds 70°C in COOL mode.

Temperature of fi n temperature
thermistor on the inverter P.C. board
exceeds 75 ~ 80°C, or temperature of
P.C. board temperature thermistor on
the inverter P.C. board exceeds 70 ~
75°C.

Outdoor fan has stopped 3 times in a
row within 30 seconds after outdoor
fan start-up.

Nonvolatile memory data cannot be
read properly.

Temperature of discharge temperature
thermistor has been 50°C or less for 20
minutes.

DC voltage of inverter cannot be
detected normally. to check inverter/

Each phase current of compressor
cannot be detected normally.

Large current fl ows into intelligent
power module (IPM).
The open-phase operation of
compressor is detected.
The interphase short out occurs in the
output of the intelligent power module
(IPM).
The compressor winding shorts out.

Closed valve is detected by
compressor current.

Check refrigerant circuit

•
and refrigerant amount.
Check stop valve.

•

Check around outdoor

•
unit.
Check outdoor unit air

•
passage.
Refer to 12-5. 7 "Check

•
of outdoor fan motor".

Refer to 12-5.7 "Check

•
of outdoor fan motor".
Refer to 11-5. < "Check
of inverter P.C. board".

Replace the inverter

•
P.C. board.

Refer to 12-5. 9 "Check

•
of LEV".
Check refrigerant circuit

•
and refrigerant amount.

Refer to 12-5. / "How

•

compressor".

Reconnect compressor

•
connector.
Refer to 12-5. / "How

•
to check inverter/
compressor".

Check stop valve •

NOTE: Blinking patterns of this mode differ from the ones of Troubleshooting check table (12-3.).

64

12-3. Troubleshooting check table
SUZ-KA25VA(H) SUZ-KA35VA(H)

NOTE 1. The location of LED is illustrated at the right figure. Refer to 12-6-1.

2. LED lights up during normal operation.

No.

1

2

3

Symptom

Outdoor unit
does not
operate

LED indication

1-time flash every

2.5 seconds

Abnormal point/ Condition

Outdoor power
system

Outdoor
thermistors

Outdoor control
system

(Except for SUZ-KA25/35VA(H)R1.TH)

When it consecutively occurs 3times that the compressor stops
for overcurrent protection or start-up failure protection within
1minute start-up.

When discharge temperature thermistor, fin temperature
thermistor, defrost thermistor, P.C. board temperature
thermistor or ambient temperature thermistor shorts or opens
during compressor running.When discharge temperature

When nonvolatile memory data cannot be read properly,
compressor stops.

Detection method

Inverter P.C. board (Parts side)

Flashing

LED

Check point

· Check stop valve.
Reconnect connector of compressor.

·

· Refer to 12-5. "How to check
inverter/ compressor".

· Refer to 12-5. "Check of outdoor
thermistors".

Replace inverter P.C. board.

4

5

6

7

8

9

10

11

12

13

'Outdoor unit
stops and
restarts 3
minutes later'
is repeated

6-time flash

2.5 seconds OFF

14-time flash

2.5 seconds OFF

2-time flash

2.5 seconds OFF

3-time flash

2.5 seconds OFF

4-time flash

2.5 seconds OFF

5-time flash

2.5 seconds OFF

8-time flash

2.5 seconds OFF

10-time flash

2.5 seconds OFF

12-time flash

2.5 seconds OFF

13-time flash

2.5 seconds OFF

Serial signal

Outdoor unit
(Other abnormality)

Overcurrent
protection

Discharge
temperature
overheat
protection

Fin temperature
/P.C. board
temperature
thermistor
overheat protection

High pressure
protection

Compressor
synchronous
abnormality

Outdoor fan

Each phase current
of compressor

DC voltage

When the communication failure between the indoor and
outdoor unit for 3 minutes.

When outdoor unit is defective.

When 14A (SUZ-KA25VA(H))/24A (SUZ-KA35VA(H)) current
flows into intelligent power module.

When discharge temperature thermistor exceeds 116,
compressor stops. Compressor can restart if discharge
temperature thermistor reads 100 or less 3 minutes later.

When temperature of fin temperature thermistor on the heat
sink exceeds 83 (SUZ-KA25VA(H))/82 (SUZ-KA35VA(H))
or temperature of P.C. board temperature thermistor exceeds
85 (SUZ-KA25VA(H))/81 (SUZ-KA35VA(H)), compressor
stops and restarts 3 minutes later.

When indoor coil thermistor exceeds 70 in HEAT mode.
When the defrost thermistor exceeds 70 in COOL mode.

When the waveform of compressor current is distorted.

When outdoor fan has stopped within 30 seconds 3 times a
row after outdoor fan start-up, unit stops.

When compressor each phase current cannot be detected
normally

When DC voltage of inverter cannot be detected normally.

Refer to 12-5." "How to check
mis-wiring and serial signal error.

Refer to 12-2-3.
Check [output pattern B]

· Check stop valve.

·

Reconnect connector of compressor.

· Refer to 12-5. "How to check

inverter/compressor".

· Check refrigerant circuit and
refrigerant amount.

· Refer to 12-5. "Check of LEV".

· Check around outdoor unit.

· Check outdoor unit air passage.

· Refer to 12-5. "Check of outdoor

fan motor".

· Check refrigerant circuit and
refrigerant amount.

· Check stop valve.

Reconnect connector of compressor.

·

· Refer to 12-5. "How to check
inverter/compressor".

· Refer to 12-5. "Check of outdoor

fan motor.

· Refer to 12-5.! "Check of inverter

P.C. board.

· Refer to 12-5. "How to check

inverter/compressor".

· Refer to 12-5. "How to check
inverter/compressor".

14

15

16

17

18

19

Outdoor unit
operates

Outdoor unit
operates

1-time flash

2.5 seconds OFF

3-time flash

2.5 seconds OFF

4-time flash

2.5 seconds OFF

7-time flash

2.5 seconds OFF

8-time flash

2.5 seconds OFF

9-time flash

2.5 seconds OFF

Frequency drop by
current protection

Frequency drop by
high pressure
protection

Frequency drop by
defrosting in COOL
mode

Frequency drop by
discharge
temperature
protection

Low discharge
temperature
protection

PAM protection

PAM:
Pulse
Amplitude
Modulation

Inverter check
mode

When current from power outlet exceeds 6.1A
(SUZ-KA25VA(H))/9.2A (SUZ-KA35VA(H)), compressor
frequency lowers.

When indoor coil thermistor exceeds 55 in HEAT mode,
compressor frequency lowers.

When indoor coil thermistor reads 8 or less in COOL mode,
compressor frequency lowers.

When discharge temperature thermistor exceeds 111,
compressor frequency lowers.

When discharge temperature has been 50 or less for 20
minutes.

When the overcurrent flows into IGBT (Insulated Gate Bipolar
transistor : TR821) or when the bus-bar voltage reaches 320V
or more, PAM stops and restarts.

When the connector of compressor is disconnected, inverter
check mode starts.

The flashing frequency shows the number of times the LED blinks after every 2.5-second OFF.
(Example) When the flashing frequency is “2”.

ON

2.5-second OFF

OFF

0.5-second ON

2.5-second OFF

65

The unit is normal, but check the
following.

· Check if indoor filters are clogged.

· Check if refrigerant is short.

· Check if indoor/outdoor unit air
circulation is short cycled.

· Check refrigerant circuit and
refrigerant amount.

· Refer to 12-5. "Check of
LEV".

· Refer to 12-5. "Check of
outdoor thermistors".

· Refer to 12-5. "Check of LEV".

· Check refrigerant circuit and
refrigerant amount.

This is not malfunction.
PAM protection will be activated in
the following cases;
 Instantaneous power voltage drop
(Short time power failure)
 When the power supply voltage is
high.

Check if the connector of the
compressor is correctly connected.
Refer to 12-5. "How to check
inverter/ compressor".

0.5-second ON

SUZ-KA50VA SUZ-KA60VA SUZ-KA71VA (Except for SUZ-KA50VAR2.TH)

Symptom

No.

Outdoor unit
does not

1

operate.

Indication

LED1 (Red)

Lightning Twice Outdoor power system

LED2 (Yellow)

Abnormal point/Condition

Condition

When IPM protection stop or lock protection stop is continuously
performed three times within 1 minute after the compressor gets
started, or when converter protection stop or bus-bar voltage
protection stop is continuously performed three times within 3
minutes after start-up.

• Check the connection of the compressor connecting
wire.

•

Refer to 12-5.( "How to check inverter/compressor".

• Check the stop valve.

Correspondence

2

3

4

5

6

7

8

9

'Outdoor unit
stops and
restarts 3
minutes

10

later' is
repeated.

11

12

13

14

15

16

17

18

19

Lightning 3 times

Lightning 4 times

5 timesLightning

Lightning 6 times Serial signal

Lightning 7 times Nonvolatile memory data • Replace the outdoor electronic control P.C. board.

Lightning 8 times Current sensor • Replace the power board.

Lightning 11 times

Lightning 12 times

Twice

3 times Goes out

4 times Goes out

5 times Goes out

8 times Goes out

9 times Goes out

13 times Goes out Outdoor fan motor • Refer to 12-5.* "Check of outdoor fan motor".

Lighting 8 times

Lighting 11 times

Lighting 12 times

Goes out

Discharge temperature
thermistor

Fin temperature
thermistor

P.C board temperature
thermistor

Ambient temperature
thermistor

Outdoor heat exchanger
temperature thermistor

Defrost thermistor

Communication error
between P.C. boards

Zero cross detecting
circuit

IPM protection

Lock protection

Discharge temperature
protection

Fin temperature
protection
P.C. board temperature
protection

High-pressure
protection

Converter protection

Bus-bar voltage
protection (1)

Bus-bar voltage
protection (2)

Current sensor
protection

Communication between P.C.
boards protection

Zero cross detecting circuit
protection

When a short circuit is detected in the thermistor during operation, or
when an open circuit is detected in the thermistor after 10 minutes
of compressor start-up.

When a short or open circuit is detected in the thermistor during
operation.

When a short or open circuit is detected in the thermistor during
operation.

When a short circuit is detected in the thermistor during operation, or
when an open circuit is detected in the thermistor after 5 minutes (in
cooling) and 10 minutes (in heating) of compressor start-up.

When a short circuit is detected in the thermistor during operation, or
when an open circuit is detected in the thermistor after 5 minutes of
compressor start-up.

When the communication fails between the indoor and outdoor
unit for 3 minutes.

When the nonvolatile memory data cannot be read properly.

Current sensor protection stop is continuously performed twice.

When the communication protection stop between boards is
continuously performed twice.

The protection stop of the zero cross detecting circuit is continuously
performed 10 times.

When over-current is detected after 30 minutes of compressor start-up.

When over-current is detected within 30 minutes of compressor
start-up

When temperature of discharge temperature thermistor exceeds 116:,
compressor stops. Compressor can restart if discharge temperature
thermistor reads 100 or less 3 minutes later.

When the fin temperature exceeds 87 during operation.

When the P.C. board temperature exceeds 70 during operation.

When high-pressure is detected with the high-pressure switch (HPS)
during operation.

When the outdoor heat exchanger temperature exceeds 70
during cooling or when indoor gas pipe temperature exceeds 70
during heating.

When a failure is detected in the operation of the converter during
operation.

When the bus-bar voltage exceeds 400V or falls to 200V or below
during compressor operating.

When the bus-bar voltage exceeds 400V or falls to 50V or below
during compressor operating.

When failure occurs continuously three times within 30 seconds after
the fan gets started.

When a short or open circuit is detected in the current sensor during
compressor operating.

Communication error occurs between the outdoor electronic control P.C.
board and power board for more than 10 seconds.

When zero cross signal cannot be detected while the compressor is
operating.

NOTE 1. The location of LED is illustrated at the right figure.

2. LED is lighted during normal operation.

The flashing frequency shows the number of times the LED blinks after every 2.5-second OFF.
(Example) When the flashing frequency is “2”.

0.5-second ON

• Refer to 12-5.) "Check of outdoor thermistor".

• Refer to 12-5.) "Check of outdoor thermistor".

• Replace the outdoor electronic control P.C. board.

• Refer to 12-5.) "Check of outdoor thermistor".

Refer to 12-5.% "How to check mis-wiring and serial signal
error.

• Check the connecting wire between outdoor electronic control
P.C. board and power board.

• Check the connecting wire among outdoor electronic control
P.C. board, noise filter P.C. board and power board.

• Reconnect compressor connector.

• Refer to 12-5.( "How to check inverter/compressor".

• Check the stop valve.

• Check the power module (PAM module).

• Check the amount of gas and refrigerant circuit.

• Refer to 12-5.'"Check of LEV".

•Check refrigerant circuit and refrigerant amount.

•Refer to 12-5.' "Check of LEV".

• Check around of gas and the refrigerant circuit.

• Check of stop valve.

• Replace the power board.

• Replace the power board.

• Replace the power board.

• Check the connecting wire between outdoor electronic control
P.C. board and power board.

• Check the connecting wire among outdoor electronic control
P.C. board, noise filter P.C. board and power board.

Outdoor electronic control P.C. board (Parts side)

LED1

LED2

Lighting

0.5-second ON

ON

OFF

2.5-second OFF

2.5-second OFF

66

Symptom

No.

Outdoor unit

20

operates.

21

22

Indication

LED1 (Red)

Once Lighting

Twice Lighting

3 times

LED2 (Yellow)

Lighting

Abnormal point/Condition Correspondence

Primary current protection

Secondary current protection

High-pressure protection

Defrosting in cooling

Discharge temperature
protection

When the input current exceeds 15A.

When the current of the compressor exceeds 15A.

When the indoor gas pipe temperature exceeds 45 during heating.

When the indoor gas pipe temperature falls 3 or below during cooling.

When the discharge temperature exceeds 100 during operation.

Condition

These symptoms do not mean any abnormality of the
product, but check the following points.

• Check if indoor filters are clogged.

• Check if refrigerant is short.

• Check if indoor/outdoor unit air circulation is short cycled.

• Check refrigerant circuit and refrigerant amount.

• Refer to 12-5.' "Check of LEV".

• Refer to 12-5.) "Check of outdoor thermistors".

23

24

Outdoor unit
operates

25

26

4 times

5 times

9 times

Lighting

Lighting

Lighting

Lighting

Lighting

Low discharge
temperature protection

Cooling high-pressure
protection

Inverter check mode

Normal

When the frequency of the compressor is kept 80Hz or more and
the discharge temperature is kept under 39 for more than 20
minutes.

When the outdoor heat exchanger temperature exceeds 58
during operation.

When the unit is operated with emergency operation switch.

-

• Refer to 12-5.' "Check of LEV".

• Check refrigerant circuit and refrigerant amount.

This symptom does not mean any abnormality of the
product, but check the following points.

• Check if indoor filters are clogged.

• Check if refrigerant is short.

• Check if indoor/outdoor unit air circulation is short cycled.

-

-

67

SUZ-KA25VA(H)R1.TH SUZ-KA35VA(H)R1.TH SUZ-KA50VAR2.TH

No. Symptom LED indication

Outdoor unit
does not oper-

1

ate.

2

3

4

5

6

'Outdoor unit
stops and

7

restarts 3 min­utes later' is
repeated.

8

9

10

11

12

13

14

Outdoor unit

15

operates.

16

17

Outdoor unit
operates.

18

1-time flash every

2.5 seconds

6-time flash

2.5 seconds OFF
11-time fl ash

2.5 seconds OFF
14-time flash

2.5 seconds OFF

2-time flash

2.5 seconds OFF

3-time ?ash

2.5 seconds OFF

4-time flash

2.5 seconds OFF

5-time flash

2.5 seconds OFF

8-time flash

2.5 seconds OFF

10-time flash

2.5 seconds OFF

12-time flash

2.5 seconds OFF
13-time flash

2.5 seconds OFF verter/compressor".
1-time flash

2.5 seconds OFF
3-time flash

2.5 seconds OFF

4-time flash

2.5 seconds OFF

7-time flash

2.5 seconds OFF

Abnormal point/ Con-

dition

Outdoor power sys­tem

Outdoor thermistors Discharge temperature thermistor, fin temperature thermistor,

Outdoor control sys­tem

Serial signal The communication fails between the indoor and outdoor unit

Stop valve/
Closed valve

Outdoor unit
(Other abnormality)

Overcurrent protec­tion

Discharge tempera­ture overheat protec­tion

Fin temperature/P.C.
board temperature
thermistor overheat
protection

High pressure protec­tion

Compressor synchro­nous abnormality

Outdoor fan motor Outdoor fan has stopped 3 times in a row within 30 seconds

Each phase current
of compressor

DC voltage DC voltage of inverter cannot be detected normally. Refer to 12-5. / "How to check in-

Frequency drop by
current protection

Frequency drop by
high pressure protec­tion

Frequency drop by
defrosting in COOL
mode

Frequency drop by
discharge tempera­ture protection

Low discharge tem­perature protection

Overcurrent protection stop is continuously performed 3 times
within 1 minute after the compressor gets started, or failure of
restart of compressor has repeated 24 times.

defrost thermistor, P.C. board temperature thermistor or ambi­ent temperature thermistor shorts or opens during compressor
running.

Nonvolatile memory data cannot be read properly.

(The left lamp of OPERATION INDICATOR lamp of the indoor
unit lights up or fl ashes 7-time.)

for 3 minutes. wiring and serial signal error.
Closed valve is detected by compressor current. Check stop valve. •

Large current fl ows into intelligent power module, or compres­sor repeats after 15 seconds when overcurrent protection oc­curs within 10 seconds after compressor starts.
(Repeated 24 times at Maximum)

Temperature of discharge temperature thermistor exceeds
116°C, compressor stops. Compressor can restart if discharge
temperature thermistor reads 100°C or less 3 minutes later.

Temperature of fin temperature thermistor on the heat sink
exceeds 75 ~ 80°C or temperature of P.C. board temperature
thermistor on the inverter P.C.board exceeds 70 ~ 75°C.

Indoor coil thermistor exceeds 70°C in HEAT mode. Defrost
thermistor exceeds 70°C in COOL mode.

The waveform of compressor current is distorted. Reconnect connector of compres-

after outdoor fan start-up.

Each phase current of compressor cannot be detected nor­mally verter/compressor".

Current from power outlet reaches the protection current, and
compressor frequency lowers.

Temperature of indoor coil thermistor exceeds 55°C in HEAT
mode, compressor frequency lowers.

Indoor coil thermistor reads 8°C or less in COOL mode, com­pressor frequency lowers.

Temperature of discharge temperature thermistor exceeds
111°C, compressor frequency lowers.

Temperature of discharge temperature thermistor has been
50°C or less for 20 minutes. Check refrigerant circuit and refrig-

ecnednopserroCnoitidnoC

Reconnect connector of compres-

•
sor.

•

Refer to 12-5. / "How to check in­verter/compressor".
Check stop valve.

•

•

Refer to 12-5. 5 "Check of outdoor
thermistors".

Replace inverter P.C. board. •

Refer to 11-5. > "How to check mis-

•

eR.evitcefedsitinuroodtuO

•
detailed outdoor unit failure mode
recall function".

Reconnect connector of compres-

•
sor.

•

Refer to 12-5. / "How to check in­verter/compressor".
Check stop valve.

•
Check refrigerant circuit and refrig-

•
erant amount.

•

Refer to 12-5. 9 "Check of LEV".

Check around outdoor unit.

•
Check outdoor unit air passage.

•

•

Refer to 12-5. 7 "Check of outdoor
fan motor".

Check refrigerant circuit and refrig-

•
erant amount.
Check stop valve.

•

•
sor.

•

Refer to 12-5. / "How to check in­verter/compressor".

Refer to 12-5. 7 "Check of outdoor

•
fan motor.

•

Refer to 12-5. < "Check of inverter
P.C. board.

•

Refer to 12-5. / "How to check in-

•

The unit is normal, but check the
following.
Check if indoor fi lters are clogged.

•
Check if refrigerant is short.

•
Check if indoor/outdoor unit air cir-

•
culation is short cycled.

Check refrigerant circuit and refrig-

•
erant amount.
Refer to 12-5. 9 "Check of LEV".

•

•

Refer to 12-5. 5 "Check of outdoor
thermistors".

•

Refer to 12-5. 9 "Check of LEV".

•
erant amount.

ehtfotrahcwolF".1.2-21otref

8-time flash

2.5 seconds OFF

19

9-time flash

20

NOTE: 1. The location of LED is illustrated at the right fi gure. Refer to 12-6-3. or 12-6-7.

2. LED is lighted during normal operation.

The flashing frequency shows the number of times the LED blinks after every 2.5-second OFF.
(Example) When the fl ashing frequency is “2”.

ON

2.5-second OFF

OFF

2.5 seconds OFF

PAM protection PAM:
Pulse Amplitude
Modulation

Inverter check mode The connector of compressor is disconnected, inverter check

0.5-second ON

2.5-second OFF

The overcurrent fl ows into IGBT (Insulated Gate Bipolar tran­sistor : TR821) or when the bus-bar voltage reaches 320 V or
more, PAM stops and restarts.

mode starts.

68

0.5-second ON

This is not malfunction. PAM protec­tion will be activated in the following
cases;
1 Instantaneous power voltage drop
(Short time power failure)
2 When the power supply voltage is
high.

Check if the connector of the com-

•
pressor is correctly connected.
Refer to 12-5. / "How to check in­verter/ compressor".

Inverter P.C. board(Parts side)

LED

Flashing ĺ

12-4. Trouble criterion of main parts (1)

SUZ-KA25VA.TH SUZ-KA35VA.TH SUZ-KA25VAR1.TH SUZ-KA35VAR1.TH
SUZ-KA25VAH.TH SUZ-KA35VAH.TH SUZ-KA25VAHR1.TH SUZ-KA35VAHR1.TH

Part name

Defrost thermistor (RT61)

Fin temperature
thermistor (RT64)

Ambient temperature
thermistor (RT65)

Outdoor heat exchanger
temperature thermistor(RT68)
(SUZ-KA25/35VA(H)R1.TH)

Discharge temperature
thermistor (RT62)

Compressor

Outdoor fan motor

Check method and criterion

Measure the resistance with a tester.

Refer to 12-6. “Test point diagram and voltage”, 12-6-1. or 12-6-3.
“Inverter P.C. board”, for the chart of thermistor.

Measure the resistance with a tester.
Before measurement, hold the thermistor with your hands to warm it up.
Refer to 12-6. “Test point diagram and voltage”, 12-6-1. or 12-6-3.
“Inverter P.C. board”, for the chart of thermistor.

Measure the resistance between the terminals with a tester.
(Part temperature -20°C ~ 40°C)

Normal

SUZ-KA25VA(H).TH

SUZ-KA35VA(H).TH

SUZ-KA25VA(H)R1.TH

SUZ-KA35VA(H)R1.TH

U-V

U-W

V-W

1.28  ~ 1.66 

0.41  ~ 0.53 

1.36  ~ 1.93 

1.52  ~ 2.17 

Measure the resistance between the terminals with a tester.
(Part temperature -20°C ~ 40°C)

Color of the lead wire

SUZ-KA25/35VA(H).TH

Normal

SUZ-KA25/35VA(H)R1.TH

WHT - BLK
BLK - RED

31  ~ 41 

29  ~ 42 

RED - WHT

Figure

WHT

WHT

RED BLK

23

V

23

V

1

W

U

RED BLK

1

W

U

R.V. coil

Expansion valve coil
(LEV)

Defrost heater
SUZ-KA·VAH

Measure the resistance between the terminals with a tester.
(Part temperature -20°C ~ 40°C)

Normal

SUZ-KA25/35VA(H).TH

1.20 k ~ 1.55 k

SUZ-KA25/35VA(H)R1.TH

1.19 k ~ 1.78 k

Measure the resistance with a tester.
(Part temperature : -20°C ~ 40°C)

Color of the lead wire

Normal
WHT - RED
RED - ORN

YLW - BRN

37  ~ 54 

BRN - BLU

Measure the resistance with a tester.
(Part temperature -20°C ~ 40°C)

Normal

333  ~ 428 

WHT

RED

ORN



LEV

BLU

YLW

BRN

69

12-4. Trouble criterion of main parts (2)
SUZ-KA50VA.TH SUZ-KA50VA1.TH SUZ-KA50VAR2.TH

SUZ-KA60VA.TH SUZ-KA60VA1.TH SUZ-KA60VAR2.TH
SUZ-KA71VA.TH SUZ-KA71VA1.TH

Part name

Defrost thermistor
(RT61)

Fin temperature
thermistor (RT64)

Ambient temperature
thermistor (RT65)

Outdoor heat exchanger
temperature thermistor
(RT68)

Discharge temperature
thermistor (RT62)

Compressor

Outdoor fan motor

Check method and criterion

Measure the resistance with a tester.

Refer to 12-6. “Test point diagram and voltage”, 12-6-4. “Outdoor
electronic control P.C. board” or 12-6-7. “Inverter P.C. board”,
for the chart of thermistor.

Measure the resistance with a tester.
Before measurement, hold the thermistor with your hands to warm it up.

Refer to 12-6. “Test point diagram and voltage”, 12-6-4. “Outdoor
electronic control P.C. board” or 12-6-7. “Inverter P.C. board”,
for the chart of thermistor.

Measure the resistance between the terminals with a tester.
(Part temperature -10°C ~ 40°C)

Normal

SUZ-KA50/60VA(1).TH

0.40  ~ 0.49 

SUZ-KA50/60VAR2.TH

0.86  ~ 1.06 

SUZ-KA71VA(1).TH

1.29  ~ 1.49 

Measure the resistance between lead wires with a tester.
(Part temperature -10°C ~ 40°C)

Color of the lead wire

Normal
RED - BLK
BLK - WHT

13.4  ~ 16.4 

WHT - RED

V

WHT

Figure

W

RED

RED

WHT

BLK

U

BLK

(W)

U

(V)

V

(U)

W

R.V. coil

Expansion valve coil
(LEV)

High pressure switch
(HPS)

SUZ-KA60VAR2.TH
SUZ-KA71VA

(1).TH

Measure the resistance with a tester.
(Part temperature -10°C ~ 40°C)

Normal

SUZ-KA50/60VAR2.TH

1.32 k ~ 1.62 k

Measure the resistance with a tester.
(Part temperature : -10°C ~ 40°C)

Color of the lead wire

WHT - RED
RED - ORN
YLW - BRN

37.4  ~ 53.9 

BRN - BLU

Pressure

3.7 ± 0.15 MPa

+ 0.05

4.8 MPa

- 0.1

2.6 k ~ 3.3 k

Normal

Other models

Close

Open

WHT

RED

ORN

YLW

LEV

BRN

BLU

70

12-5. Troubleshooting flow

Outdoor unit does not operate.

A

How to check inverter/compressor

Disconnect the connector (CN61)
between compressor and the intelligent
power module (IPM).

[SUZ-KA25/35VA(H).TH]

Check the voltage
between terminals.

Are the voltages
balanced?

Yes

Check the
compressor.

B

Check of open phase

See B “Check of open phase”.

No

Check the resistance of the intelligent

power module.

See D “Check of compressor”.

Is the resistance

infinite?

ƔWith the connector between compressor and the intelligent power

module disconnected, activate the inverter and check if the inverter
is normal by measuring the balance of voltage between terminals.

Output voltage [V]

115V

<< Operation method>>
Start cooling or heating operation by pressing the EMERGENCY OPERATION switch

on the indoor unit. (test-run mode : refer to page 31 for SLZ/SUZ and 37 for SEZ/SUZ.)

<<Measurement point>> + Measure AC voltage between the lead wires at 3 points.

BLK (U)-WHT (V)
BLK (U)-RED (W)
WHT(V)-RED (W)

NOTE 1. Output voltage varies according to power supply voltage.

2. Measure the voltage by analog type tester.

3. During this check, LED of inverter P.C. board flashes 9 times.

See C 'Check of intelligent power module'.

No
(0~several

9-time flash

Yes

")

Replace the inverter P.C.
board.

Replace the inverter P.C.
board and compressor.

Inverter P.C. board

LED

2.5-second OFF

Flashing

C

Check of intelligent power module

ƔMeasure the resistance between terminals on the intelligent

power module.
<<Measurement point>>
at 6 points
BLK-WHT, WHT-BLK
BLK-RED, RED-BLK
WHT-RED, RED-WHT

<<Judgement>>
Infinite []···········Normal
0~dozens of ······Abnormal (short)

71

ohmmeter indication



X1



X1

Normal
(infinite)

Abnormal
(0~dozens of )

D

Check of compressor

[SUZ-KA25/35VA(H).TH]

 "Check of compressor

No
winding".
Is the compressor normal?

Yes

 "Check of compressor
operation time". Does the

No

compressor operate
continuously?

Yes

Ok

E

Check of compressor winding

Ɣ Disconnect the connector (CN61) between compressor and intelligent

power module, and measure the resistance between the compressor
terminals.
Measurement point at 3 points of lead wire.
BLK-WHT
BLK-RED
WHT-RED

<<Judgment>>

Refer to 12-4..
0[] ······················Abnormal [short]
Infinite[] ·············Abnormal [open]
NOTE 1. Be sure to zero the ohmmeter before measurement.

2. Winding resistance for each phase at 20.
Refer to 4. SPECIFICATION.

Replace the compressor.

Is the compressor
operation time more than
10 seconds?

Yes

Check the refrigerant circuit.

Ohmmeter indication



X1



X1



X1

No

Replace the compressor.

Normal
(1~several )

Abnormal
(0 ······ short)

Abnormal
(infinite······ open)

WHT

RED BLK

23

V

W

U

Compressor motor

1

Check of compressor operation time

F

ƔConnect the compressor and activate the inverter. Then measure

the time until the inverter stops due to over current.
<<Operation method>>

[For wireless remote controller use model]
Start heating or cooling operation by pressing the EMERGENCY
OPERATION switch on the indoor unit. (Test-run mode)
[For wired remote controller use model]
Start heating or cooling operation by pressing the TEST button

twice on the remote controller. (Test-run mode)
<<Measurement>>
Measure the time from the start of outdoor fan running to the stop of

compressor due to over current.
<<Judgment>>

For reference

0~10 seconds······················Abnormal (compressor short or poor contact)

(compressor lock-out)

10 seconds~5 minutes········Abnormal (refrigerant circuit defect)

more than 5 minutes············Normal

72

0 second

10 seconds

5 min.

Outdoor fan starts
Abnormal
(Compressor winding short or layer short)
(compressor connector poor contact)
(compressor lock-out)

Abnormal
(Refrigerant circuit defect, etc.)

Normal

The thermistors in the outdoor unit are abnormal.

G

Check of outdoor thermistors

Defrost thermistor RT61

Measure the
resistance
between CN641
 and .

Discharge
temperature
thermistor RT62

Measure the
resistance
between CN641
 and .

Fin temperature
thermistor RT64

Measure the
resistance
between CN642
 and .

Ambient
temperature
thermistor RT65

Measure the
resistance
between CN643
 and .

Disconnect the connectors CN641, CN642 and CN643 from the inverter P.C. board.

(Check the characteristics of each thermistor.)

Is the resistance of
thermistor normal?
(Refer to 12-6.1.)

No

Replace the
thermistor
except RT64.
In case that
RT64 is
abnormal,
replace the
inverter P.C.
board, since
RT64 is
combined with
the inverter P.C.
board.

Reconnect the
connectors
CN641, CN642
and CN643.
Turn ON the
power supply and
press
EMERGENCY

Yes

OPERATION
switch (For
wireless remote
controller use
model)./TEST
button twice (For
wired remote
controller use
model).

[SUZ-KA25/35VA(H).TH]

Replace the inverter

P.C. board.

No

Does the unit operate
10 minutes or more?

Yes

OK.
(Cause is poor
contact.)

Check of R.V. coil

H

+First of all, measure the resistance of R.V. coil to check if the coil is defective. Refer to 12-4..
+In case CN721 is not connected or R.V. coil is open, voltage is generated between the terminal pins of the connector although no

signal is being transmitted to R.V. coil. Check if CN721 is connected.

Unit operates COOL mode even if it is set to HEAT mode.

Disconnect connector (CN61) between
compressor and intelligent power module.
[

For wireless remote controller use model
Turn ON the power supply and press the
EMERGENCY OPERATION switch
(HEAT switch).
[For wired remote controller use model]
Turn ON the power supply and press the
TEST button twice (HEAT mode).

]

Is there 230V AC between CN721 and
 on the power P.C. board 3 minutes after
the power supply is turned ON?

Yes

Replace the 4-way valve.

No

Power P.C. board
(soldered side)

Replace the
power P.C. board.

CN721

Unit operates HEAT mode even if it is set to COOL mode.

Disconnect connector (CN61) between
compressor and intelligent power module.
[

For wireless remote controller use model
Turn ON the power supply and press the
EMERGENCY OPERATION switch
(COOL switch).
[For wired remote controller use model]
Turn ON the power supply and press the
TEST button twice (COOL mode).

]

Is there 230V AC between CN721 and
 on the power P.C.board 3 minutes after
the power supply is turned ON?

No

• Defective R.V. coil

• Defective 4-way valve

Yes

Replace the
power P.C. board.

73

Outdoor fan motor does not operate.

I

Check of outdoor fan motor

Is the resistance
between each terminal of
outdoor fan motor normal?
(Refer to 12-4.)

No

Disconnect CN932

Yes

from the inverter
P.C. board.

Inverter P.C. board
(Solder side)

CN931

CN932

Turn ON the
power supply.

No
( Fixed to either 5V or 0V DC)

[SUZ-KA25/35VA(H).TH]

Rotate the outdoor fan slowly
by hand, and measure the
voltage of CN931 (Measurement
of feedback output).
Between (+) and (-)
Between (+) and (-)
Between (+) and (-)

Does the voltage between
each terminal repeat 5V
and 0V DC by turns?

Does the outdoor fan

No

rotate smoothly?

Yes

Replace the outdoor fan
motor.

Inverter does not operate.

Check of power supply

J

Disconnect the connector (CN61)
between compressor and intelligent
power module.
[

For wireless remote controller use model
Turn ON power supply and press
EMERGENCY OPERATION switch.
[

For wired remote controller use model
Turn ON the power supply and press the
TEST button twice.

Does POWER lamp on the
indoor unit light up?

No

]

]

Rectify indoor/outdoor
connecting wire.

Yes

Is there voltage 230V AC

between the indoor
terminal block S1 and
S2?

Replace the indoor

No

electronic control
P.C. board.

Outdoor terminal block

Indoor/outdoor
connecting
wire

Yes

Check the inverter
P.C. board.
(Refer to 12-5.!)

S3

S2

S1

Yes

Is there voltage
280V ~ 370V DC
between DB61 (+) and
DB61 (-) on the
inverter P.C. board?
Refer to 12-6.1.

No

Check the electric
parts in main circuit.

Yes

Dose LED on the inverter
P.C. board light up or
flash? Refer to 12-6-1.

Yes

Ok.
If flash, refer to
12-3.

No

Replace the inverter
P.C. board.

DB61

Inverter P.C. board
(Solder side)

74

280V~370V DC

Outdoor unit does not operate at all or stops immediately due to over current.

Check of current limiting resistor

K

When the current-limiting resistor is open, the rush current limiting relay (X64) may not work properly.

[SUZ-KA25/35VA(H).TH]

Does the current-limiting resistor
(R64A or R64B) on the power P.C.
board short out? (Normal
resistance : 5

5% )

Turn ON the power

No

supply and press
EMERGENCY
OPERATION switch of
the indoor unit.

Does LED on the inverter
P.C. board light up?

Yes

Yes

Does the rush current

Replace the power P.C. board.

limiting relay (X64) work
properly? (Normally it
close 1 minutes after
outdoor unit power ON.)

No

Replace the power P.C.board.

Ɣ Check other electric parts in the main circuit together in the case of the defective current-limiting resistor.

Heating/Cooling does not work sufficiently.

Check of LEV (Expansion valve)

L

Turn ON the power supply.
<Preparation of the remote controller>
 While pressing both OPERATION SELECT
button and TOO COOL button on the remote
controller at the same time, press RESET button.
 First, release RESET button.
And release the other two buttons after all LCD
except the set temperature in operation display
section of the remote controller is displayed after
3 seconds.

(For wireless remote controller use model)

TOO
COOL

TOO

WARM

ON/OFF

SELECT

FAN

COOL

AUTO

TIME

E

VAN

DRY

HEAT

MODE

RESET

Replace the power P.C.

No

board or the inverter P.C.
board.

Yes

Replace the power P.C.
board or the compressor.

Press OPERATE/STOP (ON/OFF) button of the remote
controller (the set temperature is displayed) with the
remote controller headed towards the indoor unit. 1

Expansion valve operates in
full-opening direction.

Do you hear the expansion
valve "click, click·······"?
Do you feel the expansion
valve vibrate on touching it ?

Yes

OK

No

Is LEV properly fixed to the
expansion valve?

Yes

Does the resistance of LEV
have the characteristics?
(Refer to 12-4.)

No

Replace the LEV.

No

Measure each voltage between connector pins
of CN724 on the inverter P.C. board.

1.Pin(-) Pin(+)

Yes

2.Pin(-) Pin(+)

3.Pin(-) Pin(+)

4.Pin(-) Pin(+)
Is there about 3~5V AC between each?
NOTE: Measure the voltage by an analog tester.

Properly fix the LEV to the
expansion valve.

Yes

Replace the
expansion valve.

ON/OFF

TOO

WARM

h

TOO

COOL

No

1. Regardless of normal or abnormal, a short
beep is emitted once as the signal is received.

NOTE : After check of LEV, do the undermentioned
operations.

1. Turn OFF the power supply and
turn ON again.

2. Press the RESET button on the remote
controller.

Replace the
inverter P.C. board.

75

Check of LEV (Expansion valve)

L

(For wired remote controller use model)

Start

Turn on power supply to the outdoor unit after checking LEV coil is mounted to
the LEV body securely.

[SUZ-KA25/35VA(H).TH]

Is "click - click" sound heard?
Or, do you feel vibration of the LEV coil with a hand?

Yes

Normal

No

Disconnect the connector
CN724 is there normal resistance to LEV coil?

Yes

Replace the inverter P.C. board.

No

Replace the LEV coil.

Outdoor base gets frozen.

Check of defrost heater

M

Check the following points before checking electric continuity.

1) Does the resistance of ambient temperature thermistor have the characteristics? Refer to 12-6-1.

2) Is the resistance of defrost heater normal? Refer to 12-4.

3) Does the heater protector remain conducted (not open)?

4) Are both ambient temperature thermistor and circuit of defrost heater securely connected to connectors?

In HEAT mode, for more than 5 minutes, let the ambient temperature thermistor continue to read 5 or less, and let the
defrost thermistor continue to read -1 or less.

Is there 230V AC between CN722  and on the
power P.C. board? Refer to 12-6-2.

Is the voltage between CN726 (+)-(-)on the
power P.C. board 0V DC? Refer to 12-6-2.

Replace the inverter P.C. board.

<SUZ-KA25VAH SUZ-KA35VAH>

NOTE: In case both thermistors are more than the above
temperature, cool them with cold water etc...

Yes

No

Yes

No

No problem of the
power P.C. board.

Replace the power
P.C. board.

23

CN726

3
2
1

CN722

1

2

26H

230V AC

2

1

H

76

Outdoor fan motor does not operate, or stops immediately after starting up.

Check of inverter P.C. board

N

Check the outdoor fan motor.
Refer to12-5..

[SUZ-KA25/35VA(H).TH]

Is the fuse (F901) blown on
the inverter P.C. board?

No

Check the connection of the connectors
(CN931, CN932) of outdoor fan motor.
If the connection is poor, make it correct.

Operate the outdoor unit by starting
EMERGENCY OPERATION.

Check the LED indication on
the inverter P.C. board.
Does the LED blink 10-time?

Yes
(10-time blink)

Yes

No

Inverter P.C.board
(Solder side)

CN931

CN932

Check the corresponding parts
following LED indication.
(Refer to 12-3.)

Replace the inverter P.C. board.

77

[SUZ-KA25/35VA(H).TH]

How to check miswiring and serial signal error (when outdoor unit does not work)

O

(For wireless remote controller use model)

Turn OFF the power supply.

As for indoor unit.

Is there rated voltage in
the power supply?

Yes

Turn ON the power supply.

Is there rated voltage between
outdoor terminal block S1 and
S2?

Yes

Press EMERGENCY OPERATION switch once.

Does the lamp of OPERATION INDICATOR
lamp light up?
<Confirmation of the power to the indoor unit>

Yes

Is serial signal error indicated 6 minutes later?

Yes

A

Turn OFF the power supply.
Check once more if the indoor/outdoor
connecting wire is not mis-wiring.

B

Short-circuit outdoor terminal block is S2
and S3.
1

Turn ON the power supply.

No

No

Check the power
supply.

Check the wiring.

No

Is there any miswiring,
poor contact, or wire

No

disconnection of the
indoor/outdoor
connecting wire?

No

1. Miswiring may damage indoor electronic control
P.C. board during the operation.
Be sure to confirm the wiring is correct before the
operation starts.
3. Be sure to check this within 3 minutes after turning
ON. After 3 minutes, LED blinks 6 times. Even when
the inverter P.C.board or the outdoor electronic control
P.C.board is normal, LED blinks 6 times after 3 minutes.

Yes

Make them correct.

Inverter P.C.board
(Parts side)

LED

Blinking

Yes

A

·

No

·

Reinstall the

unit apart from
inverter-contro
lled lighting
equipment.

Attach a filter

on receiving
section of the
indoor unit.

· Turn OFF inverter-controlled lighting
equipment.

· Turn OFF the power supply and then
turn ON it again.

· Press EMERGENCY OPERATION
switch.

Is serial signal
error indicated
6 minutes later?

B

Does the LED on the inverter P.C. board
or the outdoor electronic control P.C.board
repeat "3.6-second-OFF and 0.8-second­quick blinking"?

Turn OFF the power supply.
Remove the short-circuit between
outdoor terminal block S2 and S3.
Turn ON the power supply.
Is there amplitude of 10 to 20V DC
between outdoor terminal block S2
and S3? <Confirmation of serial
signal>

Is there rated voltage between
indoor terminal block S1 and S2?
<Confirmation of power voltage>

Replace the indoor electronic control P.C. board.

Be sure to release the failure-mode
recall function after checking.

3

Yes

No

Yes

No

Yes

No

(Lighted
or not
lighted)

Replace the inverter P.C. board
or the outdoor electronic control
P.C.board. 2

2 Be careful of the residual
voltage of smoothing capacitor.

Is there any error of the
indoor/outdoor connecting wire,
such as the damage of the wire,
intermediate connection, poor
contact to the terminal block?

No

Is there any error of the
indoor/outdoor connecting wire,
such as the damage of the wire,
intermediate connection, poor
contact to the terminal block?

No

Replace the

Yes

indoor/outdoor
connecting wire.

Replace the

Yes

indoor/outdoor
connecting wire.

78

[SUZ-KA25/35VA(H).TH]

O

How to check miswiring and serial signal error (when outdoor unit does not work)

(For wired remote controller use model)

Turn OFF the power supply.

As for indoor unit.

Is there rated voltage in the
power supply?

Yes

Turn ON the power supply.

Is there rated voltage between
outdoor terminal block S1 and
S2?

Yes

Press TEST button twice.

Does POWER lamp on remote controller light
up? <Confirmation of the power to the indoor
unit>

Yes

Is the self-check of the remote controller
displayed 6 minutes after?

Serial signal error display

POWER lamp blinks.

Turn OFF the power supply.
Check once more if the indoor/outdoor

B

connecting wire is not mis-wiring.
Short-circuit outdoor terminal block is S2
and S3.
1

Turn ON the power supply.

Yes

A

No

No

Check the power
supply.

Check the wiring.

No

Is there any mis
wiring, poor contact,

No

or wire disconnection
of the indoor/outdoor
connecting wire?

No

1. Miswiring may damage indoor electronic control
P.C. board during the operation.
Be sure to confirm the wiring is correct before the
operation starts.
3. Be sure to check this within 3 minutes after turning
ON. After 3 minutes, LED blinks 6 times. Even when
the inverter P.C.board or the outdoor electronic control
P.C.board is normal, LED blinks 6 times after 3 minutes.

Yes

Make them sure.

Inverter P.C.board
(Parts side)

LED

Blinking

· Turn OFF inverter-controlled lighting
equipment.

· Turn OFF the power supply and then
turn ON it again.

· Press TEST button twice.

Is serial signal
error indicated
6 minutes later?

A

·

Reinstall the

unit apart from
inverter-contro
lled lighting

No

equipment.

·

Attach a filter

Yes

B

on receiving
section of the
indoor unit.

Does the LED on the inverter P.C. board
or the outdoor electronic control P.C.board
repeat "3.6-second-OFF and 0.8-second­quick blinking"?

Turn OFF the power supply.
Remove the short-circuit between
outdoor terminal block S2 and S3.
Turn ON the power supply.
Is there amplitude of 10 to 20V DC
between outdoor terminal block S2
and S3? <Confirmation of serial
signal>

Is there rated voltage between
indoor terminal block S1 and S2?
<Confirmation of power voltage>

Replace the indoor electronic control P.C. board.

Be sure to release the failure-mode
recall function after checking.

3

Yes

Yes

Yes

79

Replace the inverter P.C. board
or the outdoor electronic control
P.C.board. 2

2 Be careful of the residual
voltage of smoothing capacitor.

Is there any error of the
indoor/outdoor connecting wire,
such as the damage of the wire,
intermediate connection, poor
contact to the terminal block?

Is there any error of the
indoor/outdoor connecting wire,
such as the damage of the wire,
intermediate connection, poor
contact to the terminal block?

(Lighted
or not
lighted)

No

No

No

No

No

Replace the

Yes

indoor/outdoor
connecting wire.

Replace the

Yes

indoor/outdoor
connecting wire.

[

SUZ-KA25/35VA(H).TH SUZ-KA50/60/71VA(1).TH SUZ-KA60VAR2.TH]

P

Electromagnetic noise enters into TV sets or radios

Is the unit earthed?

Yes

Is the distance between the
antennas and the indoor
unit within 3m, or is the
distance between the
antennas and the outdoor
unit within 3m?

No

Is the distance between the
TV sets or radios and the
indoor unit within 1m, or is
the distance between the TV
sets or radios and the
outdoor unit within 3m?

No

Are the antennas damaged?
Is the coaxial cable damaged?
Is there any poor contact in
the antenna wiring?

No

Is the indoor/outdoor
connecting wire of the air
conditioner and the wiring of
the antennas close?

No

Yes

Yes

Yes

Yes

Earth the unit.

Extend the distance between
the antennas and the indoor
unit, and/or the antennas and
the outdoor unit.

Extend the distance between
the TV sets and/or radios and
the indoor unit, or the TV sets
or radios and the outdoor unit.

Replace or repair the antenna.
Replace or repair the coaxial cable.

Extend the distance between
the indoor/outdoor connecting
wire of the air conditioner and
the wiring of the antennas.

No

Even if all of the above conditions are fulfilled, the electromagnetic noise may enter, depending on
the electric field strength or the installation condition (combination of specific conditions such as
antennas or wiring).
Check the followings before asking for service.

1.Devices affected by the electromagnetic noise
TV sets, radios (FM/AM broadcast, shortwave)

2.Channel, frequency, broadcast station affected by the electromagnetic noise

3.Channel, frequency, broadcast station unaffected by the electromagnetic noise

4.Layout of ;
indoor/outdoor unit of the air conditioner, indoor/outdoor wiring, grounding wire, antennas, wiring
from antennas, receiver

5.Electric field intensity of the broadcast station affected by the electromagnetic noise

6.Presence or absence of amplifier such as booster

7.Operation condition of air conditioner when the electromagnetic noise enters in.

1)Turn OFF the power supply once, and then turn ON the power supply. In this situation check for
the electromagnetic noise.

2)Within 3 minutes after turning ON the power supply, press OPERATE/STOP (ON/OFF) button
on the remote controller for power ON, and check for the electromagnetic noise.

3)After a short time (3 minutes later after turning ON), the outdoor unit starts running. During
operation, check for the electromagnetic noise.

4)Press OPERATE/STOP (ON/OFF) button on the remote controller for power OFF, when the
outdoor unit stops but the indoor/outdoor communication still runs on. In this situation check for
the electromagnetic noise.

After checking the above, consult the service representative.

80

Outdoor unit does not operate. (LED display: display OFF)

Q

Check of power supply

Start

Check the connecting of parts of main power supply circuit.

Turn on power supply.

[SUZ-KA50/60/71VA(1).TH SUZ-KA60VAR2.TH]

Is there voltage of 230V AC in the
power supply terminal block?

Yes

Is the output voltage from the noise
filter P.C. board 230V AC?

Yes

Is the input voltage to the power board
230V AC?

Yes

Is the input voltage to the outdoor
electronic control P.C. board 325V DC?

Yes

Replace the outdoor electronic control
P.C. board.

No

No

No

Check the power supply cable.

Is fuse (F64) blown?

Yes

Replace the fuse.

Replace the reactor.

No

Replace the power board.

Replace the noise

No

filter P.C. board.

81

[SUZ-KA50/60/71VA(1).TH SUZ-KA60VAR2.TH]

When unit cannot operate neither by the remote controller nor by EMERGENCY OPERATION switch.

Indoor unit does not operate.

Outdoor unit does not operate.

How to check miswiring and serial signal error (when outdoor unit does not work)

R

(For wireless remote controller use model)

Press EMERGENCY OPERATION switch once.

Does the lamp of OPERATION INDICATOR
lamp light up?
<Confirmation of the power to the indoor unit>

Is serial signal error indicated 6 minutes later?

Turn OFF the power supply.

Is there rated voltage in
the power supply?

Yes

Turn ON the power supply.

Is there rated voltage between
outdoor terminal block S1 and
S2?

Yes

Yes

Yes

A

No

No

Check the power
supply.

Check the wiring.

No

Is there any miswiring,
poor contact, or wire

No

disconnection of the
indoor/outdoor
connecting wire?

No

As for indoor unit.

Yes

Make them correct.

Outdoor electronic control P.C. board

· Turn OFF inverter-controlled lighting
equipment.

· Turn OFF the power supply and then
turn ON it again.

· Press EMERGENCY OPERATION
switch.

Is serial signal
error indicated
6 minutes later?

(Parts side)

Blinking

Yes

B

LED2

A

No

LED1

·

Reinstall the
unit apart from
inverter-contro
lled lighting
equipment.

·

Attach a filter
on receiving
section of the
indoor unit.

Turn OFF the power supply.
Check once more if the indoor/outdoor
connecting wire is not mis-wiring.

B

Short-circuit outdoor terminal block is S2
and S3.
1

Turn ON the power supply.

Does the LED on the inverter P.C. board
or the outdoor electronic control P.C.board
repeat "3.6-second-OFF and 0.8-second­quick blinking"?

Turn OFF the power supply.
Remove the short-circuit between
outdoor terminal block S2 and S3.
Turn ON the power supply.
Is there amplitude of 10 to 20V DC
between outdoor terminal block S2
and S3? <Confirmation of serial
signal>

Is there rated voltage between
indoor terminal block S1 and S2?
<Confirmation of power voltage>

Replace the indoor electronic control P.C. board.

Be sure to release the failure-mode
recall function after checking.

3

Yes

Yes

Yes

1. Miswiring may damage indoor electronic control
P.C. board during the operation.
Be sure to confirm the wiring is correct before the
operation starts.
3. Be sure to check this within 3 minutes after turning
ON. After 3 minutes, LED blinks 6 times. Even when
the inverter P.C.board or the outdoor electronic control
P.C.board is normal, LED blinks 6 times after 3 minutes.

Replace the inverter P.C. board
or the outdoor electronic control
P.C.board. 2

2 Be careful of the residual
voltage of smoothing capacitor.

Is there any error of the
indoor/outdoor connecting wire,
such as the damage of the wire,
intermediate connection, poor
contact to the terminal block?

No

Is there any error of the
indoor/outdoor connecting wire,
such as the damage of the wire,
intermediate connection, poor
contact to the terminal block?

No

Replace the

Yes

indoor/outdoor
connecting wire.

Replace the

Yes

indoor/outdoor
connecting wire.

No

No

No

(Lighted
or not
lighted)

82

[SUZ-KA50/60/71VA(1).TH SUZ-KA60VAR2.TH]

When unit cannot operate neither by the remote controller.

Indoor unit does not operate.

Outdoor unit does not operate.

R

How to check miswiring and serial signal error (when outdoor unit does not work)

(For wired remote controller use model)

As for indoor unit.

Turn OFF the power supply.

Outdoor electronic control P.C. board

(Parts side)

LED1

LED2

Blinking

Is there rated voltage in the
power supply?

Yes

Turn ON the power supply.

Is there rated voltage between
outdoor terminal block S1 and
S2?

Yes

Press TEST button twice.

Does the left lamp of OPERATION INDICATOR
lamp on remote controller light up?
<Confirmation of the power to the indoor unit>

Yes

Is the self-check of the remote controller
displayed 6 minutes after?

Serial signal error display

The left lamp of
OPERATION INDICATOR
lamp blinks.

Turn OFF the power supply.
Check once more if the indoor/outdoor
connecting wire is not mis-wiring.

B

Short-circuit outdoor terminal block is S2
and S3.
1

Turn ON the power supply.

Yes

A

No

No

Check the power
supply.

Check the wiring.

No

Is there any mis
wiring, poor contact,

No

or wire disconnection
of the indoor/outdoor
connecting wire?

No

1. Miswiring may damage indoor electronic control
P.C. board during the operation.
Be sure to confirm the wiring is correct before the
operation starts.
3. Be sure to check this within 3 minutes after turning
ON. After 3 minutes, LED blinks 6 times. Even when
the inverter P.C.board or the outdoor electronic control
P.C.board is normal, LED blinks 6 times after 3 minutes.

Yes

Make them sure.

· Turn OFF inverter-controlled lighting
equipment.

· Turn OFF the power supply and then
turn ON it again.

· Press TEST button twice.

Is serial signal
error indicated
6 minutes later?

A

·

Reinstall the

unit apart from
inverter-contro
lled lighting

No

equipment.

·

Attach a filter

Yes

B

on receiving
section of the
indoor unit.

Does the LED on the inverter P.C. board
or the outdoor electronic control P.C.board
repeat "3.6-second-OFF and 0.8-second­quick blinking"?

Turn OFF the power supply.
Remove the short-circuit between
outdoor terminal block S2 and S3.
Turn ON the power supply.
Is there amplitude of 10 to 20V DC
between outdoor terminal block S2
and S3? <Confirmation of serial
signal>

Is there rated voltage between
indoor terminal block S1 and S2?
<Confirmation of power voltage>

Replace the indoor electronic control P.C. board.

Be sure to release the failure-mode
recall function after checking.

3

Yes

Yes

Yes

83

Replace the inverter P.C. board

No

(Lighted
or OFF)

No

No

or the outdoor electronic control
P.C.board. 2

2 Be careful of the residual
voltage of smoothing capacitor.

Is there any error of the
indoor/outdoor connecting wire,
such as the damage of the wire,
intermediate connection, poor
contact to the terminal block?

Is there any error of the
indoor/outdoor connecting wire,
such as the damage of the wire,
intermediate connection, poor
contact to the terminal block?

No

No

Replace the

Yes

indoor/outdoor
connecting wire.

Replace the

Yes

indoor/outdoor
connecting wire.

[SUZ-KA50/60/71VA(1).TH SUZ-KA60VAR2.TH]

The cooling operation or heating operation does not operate. (LED display: Both LED1 and LED2 lighting)

S

Check of R.V. coil

• When heating operation does not work.

1. Disconnect the lead wire leading to the compressor.

2. 3 minutes after turning on the power supply, start EMERGENCY
OPERATION in HEAT mode.

Is there voltage of 230V AC between pin1 and
pin 2 at connector CN912? 

Yes

Turn off power supply of indoor and outdoor unit.

Disconnect the connector
CN912 in noise filter P. C.
board. Is there normal
resistance to R.V. coil?

Yes

Replace the 4-way valve.

• When cooling operation does not work.

1. Disconnect the lead wire leading to the compressor.

2. 3 minutes after turning on the power supply, start EMERGENCY
OPERATION in COOL mode.

Is there voltage of 230V AC between pin1 and
pin 2 at connector CN912? 

Yes

No

Replace the R.V. coil.

No

No

1. Turn off power supply of indoor and outdoor unit, and
disconnect the connector CN781 in the outdoor electronic
control P.C. board.

2. 3 minutes after turning on the power supply, start
EMERGENCY OPERATION in HEAT mode.

Is there voltage 12V DC
between the connector CN781
pin 5 (+) and pin 3 (-)?

Replace the noise filter P.C. board.

Replace the 4-way valve.

Yes

No

Replace the electronic
control P.C. board.

 If the connector CN912 is
not connected or R.V. coil
is open, voltage occurs
between terminals even
when the control is OFF.

1. Turn off power supply of indoor and outdoor unit, and
disconnect the connector CN781 in the outdoor electronic
control P.C. board.

2. 3 minutes after turning on the power supply, start
EMERGENCY OPERATION in COOL mode.

Is there voltage 12V DC
between the connector CN781
pin 5 (+) and pin 3 (-)?

Yes

Replace the outdoor electronic control P.C. board.

No

Replace the noise filter P.C. board.

84

When cooling, heat exchanger of non-operating indoor unit frosts.
When heating, non-operating indoor unit get warm.

[SUZ-KA50/60/71VA(1).TH SUZ-KA60VAR2.TH]

Check of LEV

T

LED display:

LED1 LED2

Lighting

Lighting

6 time Goes out

Turn on power supply to the outdoor unit after checking LEV coil is mounted to the
LEV body securely.

Is "click - click" sound heard?
Or, do you feel vibration of the LEV coil with a hand?

No

Disconnect the connector CN795.
Is there normal resistance to LEV coil?

No

Replace the LEV coil.

Yes

Yes

Normal

Replace the outdoor electronic
control P.C. board.

When heating, room does not get warm.
When cooling, room does not get cool.

How to check inverter/ compressor

U

LED display:

LED1 LED2
Lighting Lighting
Lighting

Twice

Twice

Goes out

Disconnect the terminal of the compressor. 3 minutes after turning on the power supply, start

EMERGENCY OPERATION.

 • After the outdoor fan starts running, wait for 1 minutes or more before
Measure the voltage between each
lead wire leading to the compressor.
U (BLK) - V (WHT)
V (WHT) - W (RED)
W (RED) - U (BLK)
Is voltage output on right table?

Yes

Is output balanced?

Yes

Is the input voltage to the outdoor electronic
control P.C. board 370V or more?

Yes

Turn off power supply of indoor and outdoor unit,
and measure the compressor winding resistance
between the compressor terminals.
Is the resistance between each terminal normal?

Yes

Reconnect the lead wire of compressor, and turn on
power supply to indoor and outdoor unit.
3 minutes later, starts EMERGENCY OPERATION.

No

measuring the voltage.

• The output voltage values have the tolerance of $20%.

No

COOL HEAT

150V

(48Hz)

No

Replace the power board.

No

Replace the
compressor.

170V

(64Hz)

Clarify the causes by counting time until the inverter stops.
0 to 10 seconds: compressor rare short
10 to 60 seconds: compressor lock
60 seconds to 5minutes: refrigerant circuit defective
5 minutes or more: normal

85

When thermistor is abnormal.

V

Check of outdoor thermistors

[SUZ-KA50/60/71VA(1).TH SUZ-KA60VAR2.TH]

Disconnect the connector in the outdoor electronic control P.C. board or the outdoor power board
(see below table), and measure the resistance of thermistor. Is the thermistor normal?

No

Reconnect the connector CN661 on the outdoor electronic control P.C. board and CN3 on the power board, and
disconnect the lead wire leading to the compressor.
3 minutes after turning on the power supply, start (EMERGENCY) OPERATION.

No

Does thermistor operate 10 minutes or more though the
thermistor abnormality is not displayed?

Yes

Normal

Thermistor
Defrost thermistor
Discharge temperature thermistor
Outdoor heat exchanger temperature thermistor
Fin temperature thermistor
Ambient temperature thermistor

Fan motor does not operate or stops operating shortly after starting the operation.

Symbol

RT61
RT62
RT68
RT64
RT65

Replace the outdoor electronic
control P.C. board.

Connector, Pin No.
Between CN661 pin1 and pin2 on the outdoor electronic control P.C. board
Between CN661 pin3 and pin4 on the outdoor electronic control P.C. board
Between CN661 pin7 and pin8 on the outdoor electronic control P.C. board
Between CN3 pin1 and pin2 on the outdoor power board
Between CN663 pin1 and pin2 on the outdoor electronic control P.C. board

Yes

Replace the thermistor.

Check of outdoor fan motor

W

Start

Check the connection between the
connector CN931 and CN932.

Is the resistance between each terminal
of outdoor fan motor normal?

No
(Fixed to either 5V or 0V DC)

No

Replace the outdoor DC fan motor.

Yes

Disconnect CN932 from outdoor electronic control P.C. board, and
turn on the power supply.

Rotate the outdoor fan motor manually and measure the voltage of
CN931.
Between (+) and (-)
Between (+) and (-)
Between (+) and (-)

Does the voltage between each terminal become 5V DC and 0V DC
repeatedly?

Yes

Does the outdoor fan motor rotates smoothly?

Yes

Replace the outdoor electronic control P.C. board.

86

[SUZ-KA50/60/71VA(1).TH SUZ-KA60VAR2.TH]

When the operation frequency does not go up from lowest frequency.

X Check of HPS

SUZ-KA60VAR2.TH
SUZ-KA71VA(1).TH

1. Disconnect the connector CN681 in the electronic control P.C. board.

2. Check the resistance of HPS after 1 minutes have passed since the outdoor unit power supply was turned off.

Check the resistance between
each terminal.

Infinity

Replace HPS.

0

Reconnect CN681.
Turn on power supply to the indoor and outdoor unit.
3 minutes later, starts EMERGENCY OPERATION.

Is HPS protection displayed
immediately after compressor

Yes

Replace the electronic control P.C. board.

starts?

No

Normal

Outdoor unit does not operate at all, or stops immediately due to overcurrent.

Check of current-limiting resistor

Y

When the current-limiting resistor is open, the rush current limiting relay (X64) may not work properly.

Is the resistance of current-limiting
resistor (R64A or R64B) on the
noise filter P.C. board normal?
(Normal resistance : 5$5%)

Open

Replace the power P.C. board.

Not
open

Turn ON the power
supply and press
EMERGENCY
OPERATION switch.

Does LED on the outdoor
electronic control P.C. board
light up?

Yes

Does the rush current
limiting relay(X64) work
properly?

No

Replace the noise filter P.C.board.

Replace the noise filter P.C.

No

board or the outdoor
electronic control P.C.
board.

Replace the outdoor

Yes

electronic control P.C.
board or power P.C.board
or the compressor.

87

a How to check inverter/compressor

Disconnect the connector (CN61) between
compressor and the intelligent power module
(IPM).

[SUZ-KA25/35VA(H)R1.TH SUZ-KA50VAR2.TH]

Check the voltage between terminals.

Are the voltages balanced?

Yes

Check the compressor.

No

Seeb “Check of open phase”.

Replace the inverter P.C. board.

Seed “Check of compressor”.

b Check of open phase

With the connector between the compressor and the intelligent power module disconnected, activate the inverter and check if

the inverter is normal by measuring the balance of voltage between the terminals.

The output voltage values have the tolerance of ± 20%.

<< Operation method>>
Start cooling or heating operation by pressing EMERGENCY OPERATION switch on the indoor unit. (TEST RUN OPERATION

: Refer to page 31 for SLZ/SUZ and page 37 for SEZ/SUZ.)
<<Measurement point>>
At 3 points
BLK (U) - WHT (V)
BLK (U) - RED (W)
WHT (V) - RED (W)

9-time flash

2.5-second OFF

NOTE: 1. Output voltage varies according to power supply voltage.

2. Measure the voltage by analog type tester.

3. During this check, LED of the inverter P.C. board fl ashes 9 times. (Refer to 12-6-3. (KA25/35VA) or 12-6-7.)

d Check of compressor

Refer to e “Check of compressor winding”.
Is the compressor normal?

Yes

Refer to f “Check of compressor operation
time”.

Does the compressor operate continuously?

Yes

OK.

No

No

Replace the compressor.

Is the compressor
operation time more than
10 seconds?

Yes

Check the refrigerant circuit.

No

Replace the compressor.

88

[SUZ-KA25/35VA(H)R1.TH SUZ-KA50VAR2.TH]

e Check of compressor winding

Disconnect the connector (CN61) between the compressor and intelligent power module, and measure the resistance between

the compressor terminals.
<<Measurement point>>
at 3 points
BLK-WHT
BLK-RED
WHT-RED
<<Judgement>>
Refer to 12-4.
0 [] ················Abnormal [short]
Infinite [] ·······Abnormal [open]

NOTE: Be sure to zero the ohmmeter before measurement.

Measure the resistance between the lead wires at 3 points.

f Check of compressor operation time

Connect the compressor and activate the inverter. Then measure the

time until the inverter stops due to over current.
<<Operation method>>
Start heating or cooling operation by pressing EMERGENCY

OPERATION switch on the indoor unit.
(TEST RUN OPERATION : Refer to page 31 for SLZ/SUZ and
page 37 SEZ/SUZ.)
<<Measurement>>
Measure the time from the start of compressor to the stop of

compressor due to overcurrent.

g

Check of outdoor thermistors

Disconnect the connector of thermistor in the outdoor P.C. board (see
below table), and measure the resistance of thermistor.

Is the thermistor normal?
(Refer to 12-6-3. or 12-6-7. )

Yes

Reconnect the connector of thermistor.
Turn ON the power supply and press EMERGENCY OPERATION switch.

No

<<Judgement>>

0 second

1 second

2 seconds

10 seconds

10 minutes

Replace the thermistor except RT64.
When RT64 is abnormal, replace the inverter P.C.
board or the outdoor power board.

Compressor starts

Abnormal
(IPM failure)
(Compressor winding short)

Abnormal
(Compressor lock out)
(Starting defect)

Abnormal
(Poor contact,)
(Outdoor P.C. board defect)
(Disconnected connector)

Abnormal
(Refrigerant circuit defect)
(Closed valve)

Normal

Does the unit operate for 10 minutes or more
without showing thermistor abnormality?

Yes

OK.
(Cause is poor contact.)

Thermistor Symbol Connector, Pin No. Board
Defrost RT61 Between CN641 pin1 and pin2
Discharge temperature RT62 Between CN641 pin3 and pin4
Fin temperature RT64 Between CN642 pin1 and pin2
Ambient temperature RT65 Between CN643 pin1 and pin2
Outdoor heat exchanger temperature RT68 Between CN644 pin1 and pin3

No

Replace the inverter P.C. board
or the outdoor power board.

89

Inverter P.C. board

[SUZ-KA25/35VA(H)R1.TH SUZ-KA50VAR2.TH]

h Check of R.V. coil

First of all, measure the resistance of R.V. coil to check if the coil is defective. Refer to 12-4.
In case CN721 is not connected or R.V. coil is open, voltage is generated between the terminal pins of the connector

although any signal is not being transmitted to R.V. coil.

Check if CN721 is connected.

Unit operates COOL mode even if it is set to HEAT mode.

Disconnect connector (CN61)
between the compressor and the
intelligent power module.
Turn ON the power supply and press
EMERGENCY OPERATION switch
twice (HEAT mode).

Is there 230 VAC between CN721 and

on the inverter P.C. board 3 minutes

after the power supply is turned ON?

Yes

Replace the 4-way valve.

Replace the inverter

No

P.C. board.

Unit operates HEAT mode even if it is set to COOL mode.

Disconnect connector (CN61)
between the compressor and the
intelligent power module.
Turn ON the power supply and
press EMERGENCY OPERATION
switch once (COOL mode).

Is there 230 VAC between CN721 and

on the inverter P.C. board 3 minutes

after the power supply is turned ON?

No

Replace the inverter

Yes

P.C. board.

i Check of outdoor fan motor

Check the connection between the
connector CN931 and CN932.

Is the resistance between each ter­minal of outdoor fan motor normal?
(Refer to 12-4.)

No

(Fixed to either 5 or 0 VDC)

Replace the outdoor fan motor.

Yes

Replace the 4-way valve.

Disconnect CN932 from outdoor electronic control P.C. board or
the inverter P.C. board, and turn on the power supply.

Rotate the outdoor fan motor manually and measure the voltage
of CN931.
Between 1(+) and 5(-)
Between 2(+) and 5(-)
Between 3(+) and 5(-)

Does the voltage between each terminal become 5 and 0

No

VDC repeatedly?

Yes

Does the outdoor fan motor rotate smoothly?

No

Replace the outdoor electronic control P.C. board or the inverter
P.C. board.

Yes

90

j

Check of power supply

[SUZ-KA25/35VA(H)R1.TH SUZ-KA50VAR2.TH]

280 - 370 VDC

Disconnect the connector (CN61)
between compressor and intelligent
power module.
Turn ON power supply and press
EMERGENCY OPERATION switch.

Does the left lamp of OPERATION
INDICATOR lamp on the indoor unit
light up?

No

Rectify indoor/outdoor
connecting wire.

Is there voltage 230 VAC
between the indoor terminal
block S1 and S2?

Yes

Is there voltage 280 - 370 VDC
between DB61 (+) and DB61 (–) on
the inverter P.C. board?
(Refer to 12-6-3. or 12-6-7.)

Yes

Dose LED on the inverter P.C.
board light up or fl ash?
(Refer to 12-6-3. or 12-6-7.)

No

Check the electric parts in main circuit.

k Check of LEV

(For wireless remote controller use model)

If light up, OK.
If fl ash, refer to 12-3.

Turn ON the power supply.
<Preparation of the remote controller>

While pressing both OPERATION SELECT button
and TOO COOL button on the remote controller at the
same time, press RESET button.
First, release RESET button.

And release the other two buttons after all LCD except

the set temperature in operation display section of the
remote controller is displayed after 3 seconds.

Yes

Yes

ON/OFF

DB61

Inverter P.C. board
(Solder side)

Replace the indoor
electronic control P.C.

No

board.

Replace the inverter

No

P.C. board.

TOO
COOL

TOO

M

WAR

SELECT

FAN

L

COO

AUTO

TIME

VANE

DRY

HEAT

E

MOD

ET

RES

Press OPERATE/STOP (ON/OFF) button of the remote
controller (the set temperature is displayed) with the
remote controller headed towards the indoor unit. 1

Expansion valve operates in full-opening direction.

Do you hear the expansion valve "click,
click·······"?
Do you feel the expansion valve vibrate

Yes

OK

on touching it ?

No

Is LEV coil properly fi xed to
the expansion valve?

No

Properly fi x the LEV coil to the expansion valve.

Yes

Measure each voltage between connector
pins of CN724 on the inverter P.C. board.

1. Pin (-) — Pin (+)
Does the resistance of LEV
coil have the characteristics?
(Refer to 12-4.)

No

Replace the LEV coil.

Yes

2. Pin (-) — Pin (+)

3. Pin (-) — Pin (+)

4. Pin (-) — Pin (+)

Is there about 3 ~ 5 VAC between each?
NOTE: Measure the voltage by an analog

tester.

Replace the expansion valve.

h

ON/OFF

TOO

TOO

WARM

COOL

1. Regardless of normal or abnormal condition, a short beep
is emitted once the signal is received.

Yes

NOTE : After check of LEV, do the undermentioned operations.

1. Turn OFF the power supply and turn ON it again.

2. Press RESET button on the remote controller.

91

[SUZ-KA25/35VA(H)R1.TH SUZ-KA50VAR2.TH]

m Check of LEV (Expasion valve)

Start

Turn on power supply to the outdoor unit after checking
LEV coil is fi xed to the LEV body securely.

Is "click - click" sound heard?
Or, do you feel vibration of the LEV coil with a hand?

No

Disconnect the connector CN724 is there nor­mal resistance to LEV coil?

No

Replace the LEV coil.

(For wired remote controller use model)

n Check of inverter P.C. board

Yes

Yes

Normal

Replace the inverter P.C. board.

Check the outdoor fan motor.
(Refer to i.)

Is the fuse (F901) blown on the in­verter P.C. board?

No

Check the connection of the connectors
(CN931, CN932) of the outdoor fan mo­tor.
If the connection is poor, make it correct.

Operate the outdoor unit by starting
EMERGENCY OPERATION.

Check the LED indication on the in­verter P.C. board.
Does the LED fl ash 10 times?

Yes
(10-time fl ash)

Yes

No

Check the corresponding parts
following LED indication.
(Refer to 12-3.)

Replace the inverter P.C. board.

92

p

How to check miswiring and serial signal error

Turn OFF the power supply.

[SUZ-KA25/35VA(H)R1.TH SUZ-KA50VAR2.TH]

(For wireless remote controller use model)

As for indoor unit.

A

Turn OFF inverter-controlled lighting

•
equipment.
Turn OFF the power supply and then

•
turn ON again.
Press EMERGENCY OPERATION

•
switch.

Reinstall

•
either the unit
or the light
away from

No

•

each other.
Attach a fi lter
on remote
control receiv­ing section
of the indoor
unit.

Is serial signal
error indicated 6
minutes later?

Yes

B

Is there rated voltage in the
power supply?

Turn ON the power supply.

Is there rated voltage between outdoor termi­nal block S1 and S2?

Press EMERGENCY OPERATION switch once.

Does the left lamp of OPERATION INDICA­TOR lamp light up? <Confi rmation of the
power to the indoor unit>

Is serial signal error indicated 6 minutes later?

Turn OFF the power supply.
Check once more if the indoor/outdoor

B

connecting wire is not miswiring.
Short-circuit outdoor terminal block S2
and S3.

Turn ON the power supply.

Does the LED on the inverter P.C. board or
the outdoor electronic control P.C. board
repeat "3.6-second-OFF and 0.8-second­ON quick blinking"? 3

Turn OFF the power supply.
Remove the short-circuit between
outdoor terminal block S2 and S3.
Turn ON the power supply.
Is there amplitude of 10 to 20 VDC
between outdoor terminal block S2 and
S3? <Confi rmation of serial signal>

Is there rated voltage between
indoor terminal block S1 and S2?
<Confi rmation of power voltage>

Replace the indoor electronic control P.C. board.

Be sure to release the failure-mode recall function after checking.

Yes

Yes

Yes

Yes

A

1

Yes

Yes

Yes

No

No

Check the power supply.

No

No

Is there any miswiring, poor
contact, or wire disconnection
of the indoor/outdoor connect-

No

ing wire?

1. Miswiring may damage indoor electronic control P.C. board
during the operation.

Be sure to confi rm the wiring is correct before the operation

starts.

3. Be sure to check this within 3 minutes after turning ON. After
3 minutes, LED blinks 6 times. Even when the inverter P.C.
board or the outdoor electronic control P.C. board is normal,
LED blinks 6 times after 3 minutes.

No
(Lighted
or not
lighted)

Is there any error of the in­door/outdoor connecting wire,
such as the damage of the wire,

No

intermediate connection, poor
contact to the terminal block?

Is there any error of the in­door/outdoor connecting wire,
such as the damage of the wire,
intermediate connection, poor
contact to the terminal block?

Check the wiring.

Correct them.

Yes

No

Replace the inverter P.C. board or the
outdoor electronic control P.C. board.

2

2. Be careful of the residual voltage of smoothing
capacitor.

Replace the indoor/
outdoor connecting

Yes

wire.

No

Replace the indoor/
outdoor connecting

Yes

wire.

No

93

q

How to check miswiring and serial signal error

Turn OFF the power supply.

[SUZ-KA25/35VA(H)R1.TH SUZ-KA50VAR2.TH]

(For wired remote controller use model)

As for indoor unit.

A

Turn OFF inverter-controlled lighting

•
equipment.
Turn OFF the power supply and then

•
turn ON again.
Press EMERGENCY OPERATION

•
switch.

Reinstall

•
either the unit
or the light
away from

No

•

each other .
Attach a fi lter
on remote
control receiv­ing section
of the indoor
unit.

Is serial signal
error indicated 6
minutes later?

Yes

B

Is there rated voltage in the
power supply?

Turn ON the power supply.

Is there rated voltage between outdoor termi­nal block S1 and S2?

Press TEST button once.

Does the left lamp of OPERATION INDICA­TOR lamp light up? <Confi rmation of the
power to the indoor unit>

Is serial signal error indicated 6 minutes later?

Turn OFF the power supply.
Check once more if the indoor/outdoor

B

connecting wire is not miswiring.
Short-circuit outdoor terminal block S2
and S3.

Does the LED on the inverter P.C. board or
the outdoor electronic control P.C. board
repeat "3.6-second-OFF and 0.8-second­ON quick blinking"? 3

Turn OFF the power supply.
Remove the short-circuit between
outdoor terminal block S2 and S3.
Turn ON the power supply.
Is there amplitude of 10 to 20 VDC
between outdoor terminal block S2 and
S3? <Confi rmation of serial signal>

Replace the indoor electronic control P.C. board.

Be sure to release the failure-mode recall function after checking.

1

Turn ON the power supply.

Is there rated voltage between
indoor terminal block S1 and S2?
<Confi rmation of power voltage>

Yes

Yes

Yes

Yes

A

Yes

Yes

Yes

No

No

Check the power supply.

No

No

Is there any miswiring, poor
contact, or wire disconnection
of the indoor/outdoor connect-

No

ing wire?

1. Miswiring may damage indoor electronic control P.C. board
during the operation.

Be sure to confi rm the wiring is correct before the operation

starts.

3. Be sure to check this within 3 minutes after turning ON. After
3 minutes, LED blinks 6 times. Even when the inverter P.C.
board or the outdoor electronic control P.C. board is normal,
LED blinks 6 times after 3 minutes.

Replace the inverter P.C. board or the

No
(Lighted
or not
lighted)

No

outdoor electronic control P.C. board.

2

2. Be careful of the residual voltage of smoothing

Is there any error of the in­door/outdoor connecting wire,
such as the damage of the wire,
intermediate connection, poor
contact to the terminal block?

Is there any error of the in­door/outdoor connecting wire,
such as the damage of the wire,
intermediate connection, poor
contact to the terminal block?

Check the wiring.

No

capacitor.

No

No

Yes

Replace the indoor/
outdoor connecting

Yes

wire.

Replace the indoor/
outdoor connecting

Yes

wire.

Correct them.

94

r

Electromagnetic noise enters into TV sets or radios

[SUZ-KA25/35VA(H)R1.TH SUZ-KA50VAR2.TH]

Is the unit earthed?

Yes

Is the distance between the antennas
and the indoor unit within 3 m, or is the
distance between the antennas and the
outdoor unit within 3 m?

No

Is the distance between the TV sets or
radios and the indoor unit within 1 m, or
is the distance between the TV sets or
radios and the outdoor unit within 3 m?

No

Are the antennas damaged?
Is the coaxial cable damaged?
Is there any poor contact in the anten­na wiring?

No

Is the indoor/outdoor connecting wire
of the air conditioner and the wiring of
the antennas close?

No

No

Yes

Yes

Yes

Yes

Earth the unit.

Extend the distance between the antennas and
the indoor unit, and/or the antennas and the
outdoor unit.

Extend the distance between the TV sets and/or
radios and the indoor unit, or the TV sets or
radios and the outdoor unit.

Replace or repair the antenna.
Replace or repair the coaxial cable.

Extend the distance between the indoor/outdoor
connecting wire of the air conditioner and the wir­ing of the antennas.

Even if all of the above conditions are fulfi lled, the electromagnetic noise may enter, depending on the electric fi eld strength
or the installation condition (combination of specifi c conditions such as antennas or wiring).
Check the following before asking for service.

1. Devices affected by the electromagnetic noise
TV sets, radios (FM/AM broadcast, shortwave)

2. Channel, frequency, broadcast station affected by the electromagnetic noise

3. Channel, frequency, broadcast station unaffected by the electromagnetic noise

4. Layout of ;
indoor/outdoor unit of the air conditioner, indoor/outdoor wiring, earth wire, antennas, wiring from antennas, receiver

5. Electric fi eld intensity of the broadcast station affected by the electromagnetic noise

6. Presence or absence of amplifi er such as booster

7. Operation condition of air conditioner when the electromagnetic noise enters in

1) Turn OFF the power supply once, and then turn ON the power supply. In this situation, check for the electromagnetic
noise.

2) Within 3 minutes after turning ON the power supply, press OPERATE/STOP (ON/OFF) button on the remote controller
for power ON, and check for the electromagnetic noise.

3) After a short time (3 minutes later after turning ON), the outdoor unit starts running. During operation, check for the
electromagnetic noise.

4) Press OPERATE/STOP (ON/OFF) button on the remote controller for power OFF, when the outdoor unit stops but the
indoor/outdoor communication still runs on. In this situation, check for the electromagnetic noise.

95

)

12-6. Test point diagram and voltage
12-6-1. Inverter P.C. board
SUZ-KA25VA.TH SUZ-KA35VA.TH

SUZ-KA25VAH.TH SUZ-KA35VAH.TH

Back side of unit

DB61
280V ~ 370V
DC

(+)

(-)

Output to
drive
compressor
(LDW,
LDV,
LDU)

230V AC
DB61

Smoothing capacitor
(C63C)

Smoothing capacitor
(C63B)

Smoothing capacitor
(C63A)

Fuse
(F801)

Fuse
(F901)

LED monitor
lamp

1(+)
2(+)
3(+)

5V

4
5

GND

Rotational frequency

feedback signal of outdoor fan motor

(CN931)

Jumper wire for change
in defrost setting (JS)

Front side of unit

Fin temperature thermistor(RT64)

200

180

160

140

120

100

80

60

Resistance(k)

40

20

0

0 1020304050607080

Temperature(

Connecting wire with
power P.C. board
(CN725)

Defrost thermistor(RT61)
Ambient temperature thermistor(RT65)

100

90

80

70

60

50

40

30

Resistance(k)

20

10

0

-20 -10 0 10 20 30 40

LEV
connector
(CN724)

Temperature()

Discharge temperature

Defrost thermistor/RT61

(CN641)

Ambient temperature

thermistor/RT62

(CN641)

700

600

500

400

300

200

Resistance(k)

100

Output to drive
outdoor fan motor
(CN932)

Connector for indoor/
outdoor communication
(CN601)

Fin temperature

thermistor/RT64

thermistor /RT65

(CN643)

Discharge temperature thermistor(RT62)

0

0 10 20 30 40 50 60 70 80 90 100 110 120

(CN642)

Temperature()

96

12-6-2. Power P.C. board

SUZ-KA25VA.TH SUZ-KA35VA.TH
SUZ-KA25VAH.TH SUZ-KA35VAH.TH

Back side of unit

Connecting wire with
inverter P.C.board
(CN726)
Refer to 12-5.M

Varistor
(NR63)

230V AC

Heater connector
(CN722)
Refer to 12-5.M

}

SUZ-KA25VAH
SUZ-KA35VAH

Varistor
(NR62)

Varistor
(NR64)

Front side of unit

230V AC

R.V. coil
(CN721)
230V AC

97

12-6-3. Inverter P.C. board
SUZ-KA25VAR1.TH SUZ-KA35VAR1.TH
SUZ-KA25VAHR1.TH SUZ-KA35VAHR1.TH

Smoothing

Back side of unit

AC 230 V

Fuse (F901)
250 V 3.15 A

Output to
drive
compressor
(LDU,
LDV,
LDW)

DB61
DC 260 - 300 V

(-)

capacitor
(C63)

(+)

Smoothing
capacitor
(C62)

Fuse (F801)
250 V 3.15 A

Smoothing
capacitor
(C61)

Fuse (F701)
250 V 3.15 A

Heater
connector
(CN722)

SUZ-KA25/35
VAHR1.TH

R.V.coil
(CN721)
230 VAC

AC 230 V

Front side of unit

Fin temperature

thermistor /RT64

Output to drive outdoor

fan motor (CN932)

Defrost thermistor(RT61)
Ambient temperature thermistor(RT65)
Outdoor heat exchanger temperature thermistor(RT68)

100

90

80

70

60

50

40

30

Resistance(k)

20

10

0

-20 -10 0 10 20 30 40
Temperature(°C)

(CN642)

Ambient temperature

Outdoor heat exchanger

temperature thermistor

/RT68 (CN644)

Discharge temperature thermistor(RT62)

700

600

500

400

300

200

Resistance(k)

100

0

0 102030405060708090100110120

Defrost thermistor

/RT61(CN641)

thermistor /RT65

(CN643)

Temperature(°C)

Discharge temperature

thermistor /RT62

LEV
connector
(CN724)

(CN641)

LED
monitor
lamp

Fin temperature thermistor(RT64)

200

180

160

140

120

100

80

60

Resistance(k)

40

20

0

0 1020304050607080

Jumper wire for
changing defrost
setting (JS)

Temperature(°C)

98

12-6-4. Outdoor electronic control P.C. board

)

SUZ-KA50VA

Discharge temperature thermistor (RT62)

700

600

500

400

300

200

Resistance (k)

100

0

0 102030405060708090100110120

(1).TH SUZ-KA60VA(1).TH SUZ-KA60VAR2.TH SUZ-KA71VA(1).TH

Temperature ()

To fan

motor

(

Ambient temperature

thermistor (RT65)

CN701

Signal transmission

(

CN663

Outdoor heat exchanger

temperature thermistor (RT68)

CN932

(

20-90V AC

CN931

5V

5V DC

pulse wave

(

GND

Defrost thermistor (RT61)

CN661

(

(

Discharge temperature thermistor (RT62)

(

(

(–)

CN702

Signal reception

(From power board)

(To power board)

5V DC pulse wave

(+)

5V DC pulse wave

(

(+)

(–)

GND

DC

12V

(

Rush current relay

GND (power board)

(–)

CN781

15V

15V

(–) R.V. coil

(+)

LEV

(

(+)

(

CN795

12V DC

pulse wave

(–)

(

Defrost thermistor (RT61)
Ambient temperature thermistor (RT65)
Outdoor heat exchanger temperature
thermistor (RT68)

100

90

80

70

60

50

Resistance (k)

40

30

20

10

0

-20-100 10203040

Temperature ()

Fin temperature thermistor (RT64

200

180

160

140

120

100

80

Resistance (k)

60

40

20

0

0 1020304050607080

Temperature ()

LED 1

LED 2

CN801

325V DC

~

370V DC

Input

F801

FUSE

3.15A/250V

CN601

(

230V AC
50 Hz
Input

(

Serial signal
Room A

5~10V DC

SUZ-KA60VAR2
SUZ-KA71VA

CN681

(

High pressure switch

(1)

99

12-6-5. Noise filter P.C. board
SUZ-KA50VA

CN912
R.V. coil
230V AC

230V AC
50Hz Output

(1).TH SUZ-KA60VA(1).TH SUZ-KA60VAR2.TH SUZ-KA71VA(1).TH

CN901
To electronic
control
P.C. board

{

CN902
To power
board

CN903
To power
board

{

{

230V AC
50Hz
Input

230V

{

AC50Hz
Output

NR64 VARISTOR

F64 FUSE
2A/250V

F911 FUSE
1A/250V

100