Mitsubishi OC322E 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-KA50VA1.TH
SUZ-KA50VAR2.TH
SUZ-KA60VA SUZ-KA60VA.TH
SUZ-KA60VA1.TH
SUZ-KA60VAR2.TH
SUZ-KA71VA SUZ-KA71VA.TH
SUZ-KA71VA1.TH
[Service Ref.]
SUZ-KA25VAHR1.TH
SUZ-KA35VAHR1.TH
April 2009
No.OC322
REVISED EDITION-E
HFC
utilized
R410A
Revision:
•
SUZ-KA25/35VA(H)R1.TH
are added in REVISED
EDITION-E.
• Some descriptions
have been modified.
• Please void OC322
REVISED EDITION-D.
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. ACTUA TOR CONTROL
11. SERVICE FUNCTIONS
12. TROUBLESHOOTING
13. DISASSEMBLY INSTRUCTIONS
14. PARTS LIST
15. RoHS PARTS LIST
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13
15
23
29
57
58
58
103
113
119
2
3
7
8
12
1
COMBINATION OF INDOOR AND OUTDOOR UNITS
1-1. INDOOR UNIT SERVICE MANUAL
Indoor unit
Service Ref.
SLZ-KA25VA(L).TH
Service
Manual No.
KA25VA(H).TH
KA25VA(H)R1.TH
Heat pump type
KA35VA(H).TH
KA35VA(H)R1.TH
—
Outdoor unit
SUZ-
—
(1)
.TH
KA50VA
KA50VAR2.TH
—
(1)
.TH
KA60VA
KA60VAR2.TH
KA71VA
—
(1)
.TH
SLZ-KA35VA(L).TH
SLZ-KA50VA(L).TH
SEZ-KC25VA.W
SEZ-KA35VA.TH
SEZ-KA50VA.TH
SEZ-KA60VA.TH
SEZ-KA71VA.TH
SEZ-KD25VA(L).TH
SEZ-KD35VA(L).TH
SEZ-KD50VA(L).TH
SEZ-KD60VA(L).TH
Heat pump without electric heater
SEZ-KD71VA(L).TH
MFZ-KA25VA-E1
MFZ-KA35VA-E1
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.
OC320
—
OC321
HWE0711
OB409
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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) → KNB073FFDHC : SUZ-KA25VA(H)R1.TH)
(KNB092FCAH → 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 → 800g : SUZ-KA25VA(H)R1.TH)
4. Fan motor has been changed. (RC0J50-AL → 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)
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
→ SNB130FGBH)
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
→
30m (Except when combined with MFZ).
1.TH
1.TH
→
-15:DB (Except when combined with MFZ)
SUZ-KA25VA.TH
SUZ-KA35VA.TH
Lower limit (Heating/Outdoor) -10:DB → -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 → 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 → KNB073FDVH:SUZ-KA25VA) (KNB092FAAH → 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 → 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 → 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)
Outside diameter
mm mm
6.35
9.52
9.52
12.7
15.88
6.35
9.52
12.7
15.88
Wall thickness
0.8
0.8
0.8
0.8
1.0
R410A
17
22
26
29
Insulation material
Heat resisting foam plastic
Specific gravity 0.045 Thickness
8 mm
Dimension of flare nut (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 WHD
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
33
+
2
1.05
4.42
0.33
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 WHD
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
620420V
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
340μH 20A
PS51259-A
1.12W 2%
AC 220 - 240V
250V 2A
250V 1A
DC12V
1010W
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 mΩ 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 μF 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 mΩ 5 W
—
25 mΩ 5 W
430 mΩ 2 W
—(R937A, R937B)
33 Ω
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
μF 420 V
25 A 600 V15 A 600 V(DB61)
—
180 mΩ 5 W
(2 elements)
—
1.1 Ω 2 W
11
5
NOISE CRITERIA CURVES
SUZ-KA25VA.TH
SUZ-KA25VAH.TH
FAN SPEED
High
Med.
Test conditions,
Cooling : Dry-bulb temperature 35Wet-bulb temperature (24)
Heating : Dry-bulb temperature 7Wet-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 35Wet-bulb temperature (24)
Heating : Dry-bulb temperature 7Wet-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 35Wet-bulb temperature (24)
Heating : Dry-bulb temperature 7Wet-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
2
DSA61
L
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
2
1
WHT
BLK
LD-V
LD-U
CT761
U
P
F801
+++
W
RED
V
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-KA60VA
OUTDOOR UNIT
1.TH
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
RESISTOR
POWER FACTOR CONTROLLER
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
230V~
S3S1S2
BLU
CONNECTING
UNIT
TO INDOOR
BRN
~/N 230V 50Hz
POWER SUPPLY
BREAKER
TB2
BRN
BLU
12-24V
RED
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
CN641
1
2
CN643
1
3
CN644
1
2
CN642
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 strainar)
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 strainar)
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-KA60VA
1.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
:3.6:2.450
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 10 15 20 25 30 35 40 4546
)
Outdoor intake air Dry-bulb temperature ()
SUZ-KA50VA
at Rated frequency
30
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