Mitsubishi Electric MUZ-A18YV User manual

SERVICE MANUAL
Wireless type
Models
SPLIT-TYPE, HEAT PUMPAIR CONDITIONERS
MUZ-A18YV -
MUZ-A24YV -
MUZ-A26YV - E1
E1
E1
MUZ-A18YV -
MUZ-A24YV -
MUZ-A26YV - E1
E1
E1
Indication of
model name
HFC
utilized
R410A
Revision E:
• ”Check of outdoor thermistors” has been corrected.
Please void OB346 REVISED EDITION-D.
CONTENTS
1. TECHNICAL CHANGES ····································3
2. PART NAMES AND FUNCTIONS······················6
3. SPECIFICATION·················································7
4. NOISE CRITERIA CURVES·····························10
5. OUTLINES AND DIMENSIONS························11
6. WIRING DIAGRAM ··········································12
7. REFRIGERANT SYSTEM DIAGRAM··············14
8. PERFORMANCE CURVES······························16
9. ACTUATOR CONTROL····································31
10. TROUBLESHOOTING······································32
11. DISASSEMBLY INSTRUCTIONS·····················46
12. PARTS LIST······················································50
NOTE:
This service manual describes technical data of the outdoor units.
•As for indoor units MSZ-A18YV - , MSZ-A24YV - and MSZ-A26YV - , refer to the
service manual OB345.
•As for indoor units MCFZ-A18WV - and MCFZ-A24WV - , refer to the service manual
OB344. E1E1
E1E1E1
No. OB346
REVISED EDITION-E
OB346E --1qxp 07.2.8 6:53 PM Page 1

2
Revision B:
• Part number of 4-WAY VALVE has been corrected.
Revision A:
• MUZ-A18YV -can be connected to MCFZ-A18WV -.
• MUZ-A24YV -can be connected to MCFZ-A24WV -.
E1E1
E1E1
Revision C:
• “Check of HPS ” has been corrected.
Model Revise point Part Name
CorrectIncorrect
Part Number
12-1. No.18
12-1. No.18
12-1. No.18
4-WAY VALVE
4-WAY VALVE
4-WAY VALVE
E02 891 961
E02 891 961
E02 891 961
E02 679 961
E02 679 961
E02 679 961
MUZ-A18YV - E1
MUZ-A24YV - E1
MUZ-A26YV - E1
Revision D:
•Compressor has been changed. (MUZ-A18/24YV)
Previous
New
Model
SNB130FLDH
SNB130FLDH1
PARTS LIST number
E02 851 900
E02 939 900
Revision E:
•”Check of outdoor thermistors”of “10. TROUBLESHOOTING”has been corrected.
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3
TECHNICAL CHANGES
1
Refrigeration
oil
Refrigerant
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
Non
Non
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
Non
Refrigerant
Composition (Ratio)
Refrigerant handling
Chlorine
Safety group (ASHRAE)
Molecular weight
Boiling point (:)
Steam pressure [25:](Mpa)
Saturated steam density [25:](Kg/K)
Combustibility
ODP w1
GWP w2
Refrigerant charge method
Additional charge on leakage
Kind
Color
Smell
w1:Ozone Destruction Parameter : based on CFC-11
w2 :Global Warmth Parameter : based on CO2
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 air
conditioners.
1As 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.
2Take 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.
3For refrigerant piping, use clean, pressure-proof parts/materials specifically designed for R410A. (Refer to 2. Refrigerant
piping.)
4Composition change may occur in R410A since it is a mixed refrigerant. When charging, charge liquid refrigerant to prevent
composition change.
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/ff[Gauge])
New Specification Current Specification
The incompatible refrigerating 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
refrigerating oil of the upper layer to flow back to the
compressor.
Since refrigerant and refrigerating oil are compatible each,
refrigerating oil backs to the compressor through the lower
position oil back hole.
Compressor
Suction muffler
Oil back hole
Refrigerating oil
Refrigerant
Compressor
Suction muffler
Oil back hole
Refrigerating oil /Refrigerant
Compressor
OB346E --1qxp 07.2.8 6:53 PM Page 3

4
-30 -20 -10 0 10 20 30 40 50 60
-0.5
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
(MPa [Gauge])
R410A
R22
Conversion chart of refrigerant temperature and pressure
Saturated liquid pressure
(:)
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/ff[Gauge])
R410A tools Can R22 tools be used?
Gas leak detector
R410A has high pressures beyond the measurement range of existing
gauges. Port diameters have been changed to prevent any other refrigerant
from being charged into the unit.
Hose material and cap size have been changed to improve the pressure
resistance.
Dedicated for HFC refrigerant.
6.35 mm and 9.52 mm
Description
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 R410Awith a charging cylinder because the
refrigerant bubbles due to high pressure and high-speed vaporization
No
No
No
Yes
Yes
New
New
New
Gauge manifold
Charge hose
Torque wrench
Flare tool
Flare gauge
Vacuum pump
adapter
Electronic scale for
refrigerant charging
No : Not Substitutable for R410A Yes : Substitutable for R410A
No 12.7 mm and 15.88mm
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.
2.Refrigerant piping
1Specifications
Use the refrigerant pipes that meet the following specifications.
•Use a copper pipe or a copper-alloy seamless pipe with a thickness of 0.8 mm (6.35, 9.52, 12.7), 1.0 mm (15.88).
Never use any pipe with a thickness less than 0.8 mm (6.35, 9.52, 12.7), 1.0 mm (15.88), as the pressure resistance is
insufficient.
Wall
thickness
Outside diameter
Pipe mm
For liquid
For gas
6.35
9.52
12.7
15.88
0.8 mm
0.8 mm
0.8 mm
1.0 mm
Heat resisting foam plastic
Specific gravity 0.045 Thickness 8 mm
Insulation material
OB346E --1qxp 07.2.8 6:53 PM Page 4

5
Electronic scale for refrigerant charging
Outdoor unit
Refrigerant gas
cylinder
operating valve
Refrigerant gas cylinder
for R410A with siphon
Refrigerant (liquid)
Service port
Gauge manifold
valve (for R410A)
Union
Liquid pipe
Gas pipe
Stop valve
Indoor unit
Charge hose (for R410A)
R410A
Pipe diameter
mm
6.35
9.52
12.7
15.88
17
22
26
29
Dimension of flare nut
R22
17
22
24
27
2Flaring 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”.
3.Refrigerant oil
Apply the special refrigeration 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, capacity 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.
OB346E --1qxp 07.2.8 6:53 PM Page 5

6
2PART NAMES AND FUNCTIONS
OUTDOOR UNIT
Air inlet
Piping
Air outlet
(back and side)
Drain hose
Drain outlet
ACCESSORIES
1
2
Drain socket
Drain cap [33 1
2
MUZ-A18YV - E1
MUZ-A24YV - E1
MUZ-A26YV - E1
MUZ-A18YV -
MUZ-A24YV -
MUZ-A26YV - E1
E1
E1
OB346E --1qxp 07.2.8 6:53 PM Page 6

7
SPECIFICATION
3
Single phase
230V,50Hz
20
7.38
0.30
SNB130FLDH or SNB130FLDH1
850
U-V 0.45 W-U 0.45
V-W 0.45
PM8H60-UB
BLK-WHT 15.2
WHT-RED 15.2 RED-BLK15.2
840o850o330
53
2
1.8
NEO22
13.4
10.0
17.0
10.0
Cooling
5.0(0.9~5.9)
2.5
2,940/1,650W
6.62
1,500
98.5
6.32
3.21
53/51W
800/480W
Heating
5.9(0.9~7.8)
—
2,940/2,210W
7.38
1,670
98.4
7.08
3.41
55/53W
800/620W
Single phase
230V,50Hz
20
98
8.87
0.30
SNB130FLDH or SNB130FLDH1
850
U-V 0.45 W-U 0.45
V-W 0.45
PM8H60-UB
BLK-WHT 15.2
WHT-RED 15.2 RED-BLK15.2
840o850o330
53
2
1.8
NEO22
13.4
10.0
17.0
10.0
Cooling
4.8(10.9~5.5)
2.4
2,940/1,650W
7.76
1,750
7.46
2.62
53/51W
800/480W
Heating
6.0(0.9~7.5)
—
2,940/2,210W
8.87
2,000
8.57
2.88
55/53W
800/620W
Outdoor model
Function
Power supply
Capacity Rated frequency(Min.~Max.)
Dehumidification
Air flow(High/LowW)
Power outlet
Running current
Power input
Power factor
Starting current ✽1
Compressor motor current ✽1
Fan motor current
Model
Output
Winding
resistance(at 20:)
Model
Winding
resistance(at 20:)
Dimensions WOHOD
Weight
Sound level(High/LowW)
Fan speed(High/LowW)
Fan speed regulator
Refrigerant filling
capacity(R410A)
Refrigeration oil(Model)
Thermistor RT61(at 100:)
Thermistor RT62(at 25:)
Thermistor RT65(at 50:)
Thermistor RT68(at 25:)
kW
r/h
K/h
A
A
W
%
A
A
A
W
"
"
mm
kg
dB
rpm
kg
k"
k"
k"
k"
Compressor
Fan motor
Special remarks
Coefficient of performance(C.O.P) ✽1
Capacity
Electrical data
MUZ-A18YV - E1
E1
MSZ-A18YV -
Indoor model MUZ-A18YV - E1
E1
MCFZ-A18WV -
Indoor model
NOTE : Test conditions are based on ISO 5151.
Cooling : Indoor DB 27:WB 19:
Outdoor DB 35:WB (24:)
Heating : Indoor DB 20:WB 15:
Outdoor DB 7:WB 6:
Refrigerant piping length (one way): 5m
✽1 Measured under rated operating frequency.
wReference value
OB346E --1qxp 07.2.8 6:53 PM Page 7

8
NOTE : Test conditions are based on ISO 5151.
Cooling : Indoor DB 27:WB 19:
Outdoor DB 35:WB (24:)
Heating : Indoor DB 20:WB 15:
Outdoor DB 7:WB 6:
Refrigerant piping length (one way): 5m
✽1 Measured under rated operating frequency.
wReference value
Single phase
230V,50Hz
20
98.4
8.75
0.30
SNB130FLDH or SNB130FLDH1
850
U-V 0.45 W-U 0.45
V-W 0.45
PM8H60-UB
BLK-WHT 15.2
WHT-RED 15.2 RED-BLK15.2
840o850o330
53
2
1.8
NEO22
13.4
10.0
17.0
10.0
Cooling
6.0(0.9~6.7)
3.0
2,940/1,650W
8.49
1,921
8.19
3.02
53/51W
800/480W
Heating
6.8(0.9~8.1)
—
2,940/2,210W
8.75
1,981
8.45
3.32
55/53W
800/620W
Single phase
230V,50Hz
20
98
10.47
0.30
SNB130FLDH or SNB130FLDH1
850
U-V 0.45 W-U 0.45
V-W 0.45
PM8H60-UB
BLK-WHT 15.2
WHT-RED 15.2 RED-BLK15.2
840o850o330
53
2
1.8
NEO22
13.4
10.0
17.0
10.0
Cooling
5.5(0.9~6.1)
3.1
2,940/1,650W
10.38
2,340
10.08
2.27
53/51W
800/480W
Heating
6.4(0.9~7.9)
—
2,940/2,210W
10.47
2,360
10.17
2.62
55/53W
800/620W
Single phase
230V,50Hz
20
98.3
11.42
0.30
TNB220FMCH
1,300
U-V 1.41 W-U 1.41
V-W 1.41
PM8H60-UB
BLK-WHT 15.2
WHT-RED 15.2 RED-BLK15.2
840o850o330
58
2
2.0
NEO22
13.4
10.0
17.0
10.0
Cooling
7.1(0.9~8.3)
3.8
2,940/1,650W
10.75
2,431
10.45
2.84
53/51W
800/480W
Heating
8.1(0.9~9.6)
—
2,940/2,210W
11.42
2,581
11.12
3.06
55/53W
800/620W
Outdoor model
Function
Power supply
Capacity Rated frequency(Min.~Max.)
Dehumidification
Air flow(High/LowW)
Power outlet
Running current
Power input
Power factor
Starting current ✽1
Compressor motor current ✽1
Fan motor current
Model
Output
Winding
resistance(at 20:)
Model
Winding
resistance(at 20:)
Dimensions WOHOD
Weight
Sound level(High/LowW)
Fan speed(High/LowW)
Fan speed regulator
Refrigerant filling
capacity(R410A)
Refrigeration oil(Model)
Thermistor RT61(at 100:)
Thermistor RT62(at 25:)
Thermistor RT65(at 50:)
Thermistor RT68(at 25:)
kW
r/h
K/h
A
A
W
%
A
A
A
W
"
"
mm
kg
dB
rpm
kg
k"
k"
k"
k"
Compressor
Fan motor
Special remarks
Coefficient of performance(C.O.P) ✽1
Capacity
Electrical data
MUZ-A24YV - E1
E1
MSZ-A24YV -
Indoor model MUZ-A26YV - E1
E1
MSZ-A26YV -
Indoor model
MUZ-A24YV - E1
E1
MCFZ-A24WV -
Indoor model
OB346E --1qxp 07.2.8 6:53 PM Page 8

9
OUTDOOR UNIT
Model
Item
Smoothing capacitor
Current transformer
Current transformer
Fuse
Fuse
Fet array
High pressure switch
Power transistor module
Reactor
Expansion valve
Power factor controller
Resistor
Resistor
Resistor
Solenoid coil relay
Terminal block
Terminal block
Relay
R.V. coil
MUZ-A18YV - E1
(CB1,2,3)
(CT1,2)
(CT61)
(F801, F912)
(F911)
(HC932)
(HPS)
(IPM)
(L)
(LEV)
(PFC)
(R64)
(R934A,B)
(RS1~4)
(SSR61)
(TB1)
(TB2)
(X64)
(21S4)
MUZ-A24YV - E1 MUZ-A26YV - E1
560+450V
ETQ19Z68AY
ETQ19Z53AY
250V 3.15A
250V 1A
SLA5075
PS21244-A
340µH 20A
PS51259-A
10"20W
1.1"2W 2%
0.04"7W
TLP3506
3P
2P
G4A
LD30013
ACB-DB156
CAM-40YGME 12VDC
–
CAM-30YGME 12VDC
Specifications and rating conditions of main electric parts
OB346E --1qxp 07.2.8 6:53 PM Page 9

10
NOISE CRITERIA CURVES
4
COOLING
FUNCTION SPL(dB(A)) LINE
High
SPEED
HEATING
53
55
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
BAND CENTER FREQUENCIES, Hz
Test conditions,
Cooling : Dry-bulb temperature 35: Wet-bulb temperature (24:)
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
Heating : Dry-bulb temperature 7: Wet-bulb temperature 6:
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
MUZ-A18YV -
MUZ-A24YV -
MUZ-A26YV - E1
E1
E1
OUTDOOR UNIT
MICROPHONE
1m
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11
5OUTLINES AND DIMENSIONS
Unit: mm
OUTDOOR UNIT
MUZ-A18YV -
MUZ-A24YV -
MUZ-A26YV - E1
E1
E1
30-
35-
155
90
198
40
515
299
66
34
51
330
360
850
430
500 80
121
840
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
Open as a rule
500mm or more if the back,
both sides and top are open 350mm or more
100mm or more
Service panel
Gas refrigerant
pipe joint
Refrigerant pipe
(flared) [12.7 (MUZ-A18YV)
[15.88 (MUZ-A24/A26YV)
Liquid refrigerant
pipe joint
Refrigerant pipe
(flared) [6.35 (MUZ-A18/A24YV)
[9.52 (MUZ-A26YV)
REQUIRED SPACE
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12
WIRING DIAGRAM
6
MUZ-A18YV -
MUZ-A24YV -E1
E1
PFC
GRN
LD9 POWER
BOARD RT65
21
CN3
RED
WHT
RS2 RS1
R64
RS3 RS4
F801
CN901
NR63
ELECTRONIC P.C. BOARD CONTROL
CB1
CB2
CB3
HC932
IPM
NF
NOISE FILTER P.C. BOARD
BLK BLK BLK
BLK WHT RED YLW BLU ORN PNK GRY
BLU RED
GRN
GRN
BLU
BLU
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK RED
BRN
BLU
LCT2
CT1
SSR61
U
6
CN795
4123 78
CN661
W
CN4
TB2
3
TO INDOOR UNIT CONNECTING 12V
1
CN601
3
N
1567
CN702
5321 CN781 13
CN701
12
12
CN931
LD1LD2
T801 R934A
R934B
CN801
23134512
MF
CN932
4X64
5123
LDE2
13
CT61
TAB1
F912
F911
LDE1
CN912
21S4
POWER SUPPLY ~/N 230V 50Hz
TAB2
GRN/YLW
NPE
L
TB1
CIRCUIT BREAKER 4
1
RED YLW
3 2
RED S
R
21
CN903
21
CN902
21
CN5
6543 1
CN2 27
TAB4 YLW VMC
W
U
V
WHT
RT62 RT61 RT68 LEV
:Terminal block :Connector 3.Symbols below indicate. 2.Use copper conductors only (for field wiring).
diagram for servicing.
refer to the indoor unit electric wiring
1.About the indoor side electric wiringNOTES:
SYMBOL
NAME
SYMBOL
NAME
CURRENT TRANSFORMER
FUSE (250V 3.15A)
FUSE (250V 1A)
LEV EXPANSION VALVE COIL
LREACTOR
IPM POWER TRANSISTOR MODULE
CT61
CT1, 2 CURRENT TRANSFORMER
HC932 FET ARRAY
F912
F911
F801 FUSE (250V 3.15A)
SMOOTHING CAPACITOR
CB1~3
OUTDOOR FAN MOTOR (INNER FUSE)
POWER FACTOR CONTROLLER
NOISE FILTER
RT61
DISCHARGE TEMPERATURE THERMISTOR
RS1~4 RESISTOR
R934A, B
RESISTOR
MF
MC COMPRESSOR
R64 RESISTOR
PFC
NF
NR63 VARISTOR
FIN TEMPERATURE THERMISTOR
SOLENOID COIL RELAY
21S4 R.V. COIL
X64 RELAY
TB1 TERMINAL BLOCK TB2 TERMINAL BLOCK
RT65
T801 TRANSFORMER
SSR61
RT68 OUTDOOR HEAT EXCHANGER
TEMPERATURE THERMISTOR
DEFROST THERMISTOR
RT62
NAME
SYMBOL
MODELS WIRING DIAGRAM
OUTDOOR UNIT
OB346E --1qxp 07.2.8 6:53 PM Page 12

13
MUZ-A26YV -E1
PFC
GRN
LD9 POWER
BOARD RT65
21
CN3
RED
WHT
RS2 RS1
R64
RS3 RS4
F801
CN901
NR63
ELECTRONIC P.C. BOARD CONTROL
CB1
CB2
CB3
HC932
IPM
NF
NOISE FILTER P.C. BOARD
BLK BLK BLK
BLK WHT RED YLW BLU ORN PNK GRY
BLU RED
GRN
GRN
BLU
BLU
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK RED
BRN
BLU
LCT2
CT1
SSR61
U
6
CN795
41212
RED
RED
HPS
378
CN661CN681
W
CN4
TB2
3
TO INDOOR UNIT CONNECTING 12V
1
CN601
3
N
1567
CN702
5321 CN781 13
CN701
12
12
CN931
LD1LD2
T801 R934A
R934B
CN801
23134512
MF
CN932
4X64
5123
LDE2
13
CT61
TAB1
F912
F911
LDE1
CN912
21S4
POWER SUPPLY ~/N 230V 50Hz
TAB2
GRN/YLW
NPE
L
TB1
CIRCUIT BREAKER 4
1
RED YLW
3 2
RED S
R
21
CN903
21
CN902
21
CN5
6543 1
CN2 27
TAB4 YLW VMC
W
U
V
WHT
RT62 RT61 RT68 LEV
:Terminal block :Connector 3.Symbols below indicate. 2.Use copper conductors only (for field wiring).
diagram for servicing.
refer to the indoor unit electric wiring
1.About the indoor side electric wiringNOTES:
SYMBOL
NAME
SYMBOL
NAME
CURRENT TRANSFORMER
FUSE (250V 3.15A)
FUSE (250V 1A)
LEV EXPANSION VALVE COIL
LREACTOR
IPM POWER TRANSISTOR MODULE
HPS HIGH PRESSURE SWITCH
CT61
CT1, 2 CURRENT TRANSFORMER
HC932 FET ARRAY
F912
F911
F801 FUSE (250V 3.15A)
SMOOTHING CAPACITORCB1~3
OUTDOOR FAN MOTOR (INNER FUSE)
POWER FACTOR CONTROLLER NOISE FILTER
RT61
DISCHARGE TEMPERATURE THERMISTOR
RS1~4 RESISTOR
R934A, B
RESISTOR
MF
MC COMPRESSOR
R64 RESISTOR
PFC
NF
NR63 VARISTOR
FIN TEMPERATURE THERMISTOR
SOLENOID COIL RELAY
21S4 R.V. COIL
X64 RELAY
TB1 TERMINAL BLOCK TB2 TERMINAL BLOCK
RT65
T801 TRANSFORMER
SSR61
RT68 OUTDOOR HEAT EXCHANGER
TEMPERATURE THERMISTOR
DEFROST THERMISTOR
RT62
NAME
SYMBOL
MODEL WIRING DIAGRAM
OUTDOOR UNIT
OB346E --1qxp 07.2.8 6:53 PM Page 13

14
REFRIGERANT SYSTEM DIAGRAM
7
MUZ-A18YV -
MUZ-A24YV - E1
E1
OUTDOOR UNIT
Unit:mm
Outdoor
heat
exchanger
Flared connection
Defrost
thermistor
RT62
Discharge
temperature
thermistor
RT61
Flared connection
Stop valve
Stop valve
(with service port)
Capillary tube
[3.6✕[2.4✕50 Refrigerant flow in cooling
Compressor
4-way valve
Refrigerant flow in heating
Refrigerant pipe [12.7 (MUZ-A18YV)
(with heat insulator) [15.88 (MUZ-A24YV)
Refrigerant pipe [6.35
(with heat insulator)
LEV R.V. coil
heating ON
cooling OFF
Muffler
#100
Strainer
#100
Receiver
Outdoor heat
exchanger
temperature
thermistor
RT68
Strainer
#100
MUZ-A26YV - E1
OUTDOOR UNIT Unit:mm
Outdoor
heat
exchanger
Flared connection
Defrost
thermistor
RT62
Discharge
temperature
thermistor
RT61
Flared connection
Stop valve
Stop valve
(with service port)
Capillary tube
[3.6✕[2.4✕50
Capillary tube
[1.8✕[0.6✕1000
Refrigerant flow in cooling
Compressor
4-way valve
Refrigerant flow in heating
Refrigerant pipe [15.88
(with heat insulator)
Refrigerant pipe [9.52
(with heat insulator)
LEV R.V. coil
heating ON
cooling OFF
Oil separator High-pressure
switch
Strainer
#100
Receiver
Outdoor
heat
exchanger
temperature
thermistor
RT68
Strainer
#100
Strainer
#100
OB346E --1qxp 07.2.8 6:53 PM Page 14

15
Refrigerant Piping
Max. length
A
wHeight difference should be within 15m regardless of which unit, indoor or outdoor position is high.
wMax. Height
difference 15m
Indoor
unit
Outdoor unit
MAX. HEIGHT DIFFERENCE
MAX. REFRIGERANT PIPING LENGTH
Model Piping size O.D : mm Length of connecting pipe : m
Refrigerant piping
Max. length : m
A
30
Indoor unit
Gas 0.43
Liquid 0.5
Gas
12.7
15.88
Liquid
6.35
9.52
MUZ-A18YV - E1
MUZ-A24YV - E1
MUZ-A26YV - E1
Outdoor unit
Gas 0
Liquid 0
Model
MUZ-A18YV - E1
Refrigerant piping length (one way)
Outdoor unit
precharged
1,800
15m
160
20m
260
25m
360
30m
460
7m
0
10m
60
ADDITIONAL REFRIGERANT CHARGE(R410A : g)
Calculation : Xg=20g/m ✕ (Refrigerant piping length (m)–7)
Model
MUZ-A24YV - E1
Refrigerant piping length (one way)
15m
160
20m
260
25m
360
7m
0
10m
60
Outdoor unit
precharged
1,800
30m
460
Calculation : Xg=20g/m ✕ (Refrigerant piping length (m)–7)
Outdoor unit
precharged
2,000
0 165 440 715 990 1,265
Refrigerant piping length (one way)
15m10m7m
Model
MUZ-A26YV - E1
20m 25m 30m
Calculation : Xg=55g/mo(Refrigerant piping length(m)-7)
OB346E --1qxp 07.2.8 6:53 PM Page 15

16
PERFORMANCE CURVES8
The standard data contained in these specifications apply only to the operation of the air conditioner under normal conditions.
Since 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
207 ~ 253V, 50Hz
(2) AIR FLOW
Air flow should be set at MAX.
(3) MAIN READINGS
(1) Indoor intake air wet-bulb temperature : °C WB
(2) Indoor outlet air wet-bulb temperature : °C WB
(3) Outdoor intake air dry-bulb temperature : °C DB
(4) Total input : W
(5) Indoor intake air dry-bulb temperature : °C DB
(6) Outdoor intake air wet-bulb temperature : °C WB
(7) Total input : W
Indoor air wet/dry-bulb temperature difference on the left side of the chart on this page and next page shows the differ-
ence between the indoor intake air wet/dry-bulb temperature and the indoor outlet air wet/dry-bulb temperature for your
reference at service.
}
}
Cooling
Heating
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 intake 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 intake.
Cover the thermometers to prevent direct rays of the sun.
3. Check that the air filter is cleaned.
4. Open windows and doors of room.
5. Press the EMERGENCY OPERATION switch once (twice) 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 Wet and dry-bulb
thermometers
MUZ-A18YV -
MUZ-A24YV -
MUZ-A26YV - E1
E1
E1
11.1
10.2
9.2
8.3
7.5
6.6
MCFZ-A18WV - E1 MUZ-A18YV - E1 Rated frequency 84Hz
11.3
10.3
9.3
8.4
7.5
6.7
MSZ-A24YV - E1 MUZ-A24YV - E1 Rated frequency 88Hz
Indoor airWet-bulb temperature
difference (degree)
MSZ-A18YV - E1 MUZ-A18YV - E1
11.4
10.5
9.5
8.6
7.7
6.8
12.9
11.7
10.6
9.6
8.6
7.6
Rated frequency 73Hz MCFZ-A24WV - E1 MUZ-A24YV - E1 Rated frequency 102Hz MSZ-A26YV - E1 MUZ-A26YV - E1 Rated frequency 63Hz
Outdoor intake air Dry-bulb temperature (:) Outdoor intake air Dry-bulb temperature (:)
13.9
12.7
11.4
10.3
9.2
8.1
Indoor intake airWet-bulb temperature (:)
Indoor intake airWet-bulb temperature (:)
OB346E --1qxp 07.2.8 6:53 PM Page 16

17
28.0
25.9
23.7
21.6
19.4
17.2
15.1
12.9
MCFZ-A18WV - E1 MUZ-A18YV - E1 Rated frequency 86Hz
29.9
27.6
25.3
23.0
20.7
18.4
16.1
13.8
MCFZ-A24WV - E1 MUZ-A24YV - E1 Rated frequency 95Hz
25.7
23.7
21.8
19.8
17.8
15.8
13.8
11.9
26.2
24.1
22.1
20.1
18.1
16.1
14.1
12.1
Indoor air Dry-bulb temperature
difference (degree)
Indoor intake air Dry-bulb temperature (:)
Outdoor intake air Wet-bulb temperature (:) Outdoor intake air Wet-bulb temperature (:)
Indoor intake air Dry-bulb temperature (:)
MSZ-A18YV - E1 MUZ-A18YV - E1 Rated frequency 82Hz MSZ-A24YV - E1 MUZ-A24YV - E1 Rated frequency 96Hz MSZ-A26YV - E1 MUZ-A26YV - E1 Rated frequency 65Hz
31.2
28.8
26.4
24.0
21.6
19.2
16.8
14.4
NOTE:The above curves are for the heating operation without any frost.
Capacity correction factors
Input correction factors
Input correction factors
Capacity correction factors
Correction of Cooling capacity
The operational frequency of compressor
Correction of Cooling total input
The operational frequency of compressor
Correction of Heating total input
The operational frequency of compressor
Correction of Heating capacity
The operational frequency of compressor
Capacity correction factors
Input correction factors
Correction of Cooling capacity
The operational frequency of compressor
Correction of Cooling total input
The operational frequency of compressor
Capacity correction factors
Input correction factors
Input correction factors
Capacity correction factors
Correction of Cooling capacity
The operational frequency of compressor
Correction of Cooling total input
The operational frequency of compressor
Correction of Heating total input
The operational frequency of compressor
Correction of Heating capacity
The operational frequency of compressor
( )
MUZ-A18YV - E1
Indoor unit :
MSZ-A18 YV - E1
E1
( )
MUZ-A18YV - E1
Indoor unit :
MSZ-A18YV - E1
E1
( )
MUZ-A18YV - E1
Indoor unit :
MSZ-A18YV - E1
E1
( )
MUZ-A18YV - E1
Indoor unit :
MSZ-A18YV - E1
E1
( )
MUZ-A18YV - E1
Indoor unit :
MCFZ-A18WV - E1
E1
( )
MUZ-A18YV - E1
Indoor unit :
MCFZ-A18WV - E1
E1
( )
MUZ-A18YV - E1
Indoor unit :
MCFZ-A18WV - E1
E1
( )
MUZ-A18YV - E1
Indoor unit :
MCFZ-A18WV - E1
E1
( )
MUZ-A24YV - E1
Indoor unit :
MSZ-A24YV - E1
E1
( )
MUZ-A24YV - E1
Indoor unit :
MSZ-A24YV - E1
E1
( )
MUZ-A24YV - E1
Indoor unit :
MSZ-A24YV - E1
E1
( )
MUZ-A24YV - E1
Indoor unit :
MSZ-A24YV - E1
E1
Input correction factors
Capacity correction factors
Correction of Heating total input
The operational frequency of compressor
Correction of Heating capacity
The operational frequency of compressor
0 50 100 150
0.5
1.0
1.5
(Hz) 0 50 100 150
0.5
1.0
1.5
(Hz) 0 50 100 150
0.5
1.0
1.5
(Hz) 0 50 100 150
0.5
1.0
1.5
(Hz)
0 50 100 150
0.5
1.0
1.5
(Hz) 0 50 100 150
0.5
1.0
1.5
(Hz)
0 50 100 150
0.5
1.0
1.5
(Hz) 0 50 100 150
0.5
1.0
1.5
(Hz) 0 50 100 150
0.5
1.0
1.5
(Hz) 0 50 100 150(Hz)
0.5
1.0
1.5
0 50 100 150(Hz)
0.5
1.0
1.5
0 50 100 150(Hz)
0.5
1.0
1.5
OB346E --1qxp 07.2.8 6:53 PM Page 17

18
<How to operate fixed-frequency operation (Test run operation)>
1. Press the EMERGENCY OPERATION switch to COOL or HEAT mode (COOL : Press once, HEAT : Press twice).
2. Test run operation starts and continue to operate for 30 minutes.
3. Compressor starts at fixed-frequency.
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 any button on
remote controller.
OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT
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/ff[Gauge])
MUZ-A26YV - E1 MUZ-A26YV - E1 MUZ-A26YV - E1 MUZ-A26YV - E1
Capacity correction factors
Input correction factors
Input correction factors
Capacity correction factors
Correction of Cooling capacity
The operational frequency of compressor
Correction of Cooling total input
The operational frequency of compressor
Correction of Heating total input
The operational frequency of compressor
Correction of Heating capacity
The operational frequency of compressor
0 50 100 150
0.5
1.0
1.5
(Hz) 0 50 100 150
0.5
1.0
1.5
(Hz) 0 50 100 150
0.5
1.0
1.5
(Hz) 0 50 100 150
0.5
1.0
1.5
(Hz)
Capacity correction factors
Input correction factors
Input correction factors
Capacity correction factors
Correction of Cooling capacity
The operational frequency of compressor
Correction of Cooling total input
The operational frequency of compressor
Correction of Heating total input
The operational frequency of compressor
Correction of Heating capacity
The operational frequency of compressor
( )
MUZ-A24YV - E1
Indoor unit :
MCFZ-A24WV - E1
E1
( )
MUZ-A24YV - E1
Indoor unit :
MCFZ-A24WV - E1
E1
( )
MUZ-A24YV - E1
Indoor unit :
MCFZ-A24WV - E1
E1
( )
MUZ-A24YV - E1
Indoor unit :
MCFZ-A24WV - E1
E1
0 50 100 150
0.5
1.0
1.5
(Hz) 0 50 100 150
0.5
1.0
1.5
(Hz) 0 50 100 150
0.5
1.0
1.5
(Hz) 0 50 100 150
0.5
1.0
1.5
(Hz)
2Air flow : High speed
3Operational frequency : 25Hz(MUZ-A18YV)
25Hz(MUZ-A24YV)
24Hz(MUZ-A26YV)
(MPa [Gauge])
(kgf/F[Gauge])
18 32
15 20
50 25 60 30 70 (%)
35(˚C)
0.4
0.6
0.8
1.0
1.2
1.4 25Hz
4
6
8
10
12
14
16 1.6
Ambient temperature(˚C) Ambient humidity(%)
Outdoor low pressure
15 20
50 25 60 30 70 (%)
35(˚C)
1
1.5
2
2.5
3
25Hz
32
18
Outdoor unit current(A)
Ambient temperature(˚C) Ambient humidity(%)
(MPa [Gauge])
(kgf/F[Gauge])
18 32
15 20
50 25 60 30 70 (%)
35(˚C)
0.4
0.6
0.8
1.0
1.2
1.4 25Hz
4
6
8
10
12
14
16 1.6
Ambient temperature(˚C) Ambient humidity(%)
Outdoor low pressure
15 20
50 25 60 30 70 (%)
35(˚C)
1
1.5
2
2.5
3
25Hz
32
18
Outdoor unit current(A)
Ambient temperature(˚C) Ambient humidity(%)
( )
MUZ-A18YV - E1
Indoor unit :
MCFZ-A18WV - E1
E1
( )
MUZ-A18YV - E1
Indoor unit :
MCFZ-A18WV - E1
E1
( )
MUZ-A18YV - E1
Indoor unit :
MSZ-A18YV - E1
E1
( )
MUZ-A18YV - E1
Indoor unit :
MSZ-A18YV - E1
E1
OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT
COOL operation
1Both indoor and outdoor unit are under the
same temperature/humidity condition. Dry-bulb temperature(°C) Relative humidity(%)
20 50
25 60
30 70
OB346E --1qxp 07.2.8 6:53 PM Page 18

19
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
Outdoor unit current (A)
Outdoor unit current (A)
Ambient temperature(˚C)
Ambient temperature(˚C)
Outdoor unit current (A)
Ambient temperature(˚C)
MUZ-A26YV - E1
( )
MUZ-A18YV - E1
Indoor unit :
MSZ-A18YV - E1
E1
( )
MUZ-A24YV - E1
Indoor unit :
MSZ-A24YV - E1
E1
Outdoor unit current (A)
Outdoor unit current (A)
Ambient temperature(˚C)
Ambient temperature(˚C)
4.0
3.5
3.0
2.5
2.0
1.5
1.0 25 10 15 20 25(:)
32Hz
32Hz
4.0
3.5
3.0
2.5
2.0
1.5
1.0 25 10 15 20 25(:)
( )
MUZ-A18YV - E1
Indoor unit :
MCFZ-A18WV - E1
E1
( )
MUZ-A24YV - E1
Indoor unit :
MCFZ-A24WV - E1
E1
4.0
3.5
3.0
2.5
2.0
1.5
1.0 25 10 15 20 25(:)
32Hz
32Hz
4.0
3.5
3.0
2.5
2.0
1.5
1.0 25 10 15 20 25(:)
6
5.5
5
4.5
4.0
3.5
3.0 25 10 15 20 25(:)
32Hz
Operational frequency : 32Hz(MUZ-A18YV)
32Hz(MUZ-A24YV)
32Hz(MUZ-A26YV)
0.4
0.6
0.8
1.0
1.2
1.4
4
6
8
10
12
14
16 1.6
MUZ-A26YV - E1
15 20
50 25 60 30
70 (%)
35(˚C)
2.5
3
3.5
4
4.5
24Hz
32
18
Outdoor unit current(A)
Ambient temperature(˚C) Ambient humidity(%)
MUZ-A26YV - E1
(MPa [Gauge])
(kgf/F[Gauge])
18 32
15 20
50 25 60 30 70 (%)
35(˚C)
24Hz
Ambient temperature(˚C) Ambient humidity(%)
Outdoor low pressure
0.4
0.6
0.8
1.0
1.2
1.4
4
6
8
10
12
14
16 1.6 (MPa [Gauge])
(kgf/F[Gauge])
18 32
15 20
50 25 60 30 70 (%)
35(˚C)
25Hz
15 20
50 25 60 30
70 (%)
35(˚C)
1
2
3
4
5
25Hz
32
18
Ambient temperature(˚C) Ambient humidity(%)
Outdoor low pressure
Outdoor unit current(A)
Ambient temperature(˚C) Ambient humidity(%)
0.4
0.6
0.8
1.0
1.2
1.4
4
6
8
10
12
14
16 1.6 (MPa [Gauge])
(kgf/F[Gauge])
18 32
15 20
50 25 60 30 70 (%)
35(˚C)
25Hz
15 20
50 25 60 30
70 (%)
35(˚C)
1
2
3
4
5
25Hz
32
18
Ambient temperature(˚C) Ambient humidity(%)
Outdoor low pressure
Outdoor unit current(A)
Ambient temperature(˚C) Ambient humidity(%)
( )
MUZ-A24YV - E1
Indoor unit :
MCFZ-A24YV - E1
E1
( )
MUZ-A24YV - E1
Indoor unit :
MCFZ-A24YV - E1
E1
( )
MUZ-A24YV - E1
Indoor unit :
MSZ-A24YV - E1
E1
( )
MUZ-A24YV - E1
Indoor unit :
MSZ-A24YV - E1
E1
OB346E --1qxp 07.2.8 6:53 PM Page 19

20
MSZ-A18YV - : MUZ-A18YV - E1E1
21 18 5.88 2.76 0.47 1248 5.63 2.64 0.47 1310 5.40 2.54 0.47 1373 5.20 2.44 0.47 1435
21 20 6.13 2.14 0.35 1310 5.88 2.06 0.35 1388 5.70 2.00 0.35 1420 5.50 1.93 0.35 1482
22 18 5.88 3.00 0.51 1248 5.63 2.87 0.51 1310 5.40 2.75 0.51 1373 5.20 2.65 0.51 1435
22 20 6.13 2.39 0.39 1310 5.88 2.29 0.39 1388 5.70 2.22 0.39 1420 5.50 2.15 0.39 1482
22 22 6.38 1.72 0.27 1357 6.15 1.66 0.27 1443 6.00 1.62 0.27 1482 5.75 1.55 0.27 1544
23 18 5.88 3.23 0.55 1248 5.63 3.09 0.55 1310 5.40 2.97 0.55 1373 5.20 2.86 0.55 1435
23 20 6.13 2.63 0.43 1310 5.88 2.53 0.43 1388 5.70 2.45 0.43 1420 5.50 2.37 0.43 1482
23 22 6.38 1.98 0.31 1357 6.15 1.91 0.31 1443 6.00 1.86 0.31 1482 5.75 1.78 0.31 1544
24 18 5.88 3.47 0.59 1248 5.63 3.32 0.59 1310 5.40 3.19 0.59 1373 5.20 3.07 0.59 1435
24 20 6.13 2.88 0.47 1310 5.88 2.76 0.47 1388 5.70 2.68 0.47 1420 5.50 2.59 0.47 1482
24 22 6.38 2.23 0.35 1357 6.15 2.15 0.35 1443 6.00 2.10 0.35 1482 5.75 2.01 0.35 1544
24 24 6.70 1.54 0.23 1420 6.45 1.48 0.23 1498 6.30 1.45 0.23 1544 6.10 1.40 0.23 1622
25 18 5.88 3.70 0.63 1248 5.63 3.54 0.63 1310 5.40 3.40 0.63 1373 5.20 3.28 0.63 1435
25 20 6.13 3.12 0.51 1310 5.88 3.00 0.51 1388 5.70 2.91 0.51 1420 5.50 2.81 0.51 1482
25 22 6.38 2.49 0.39 1357 6.15 2.40 0.39 1443 6.00 2.34 0.39 1482 5.75 2.24 0.39 1544
25 24 6.70 1.81 0.27 1420 6.45 1.74 0.27 1498 6.30 1.70 0.27 1544 6.10 1.65 0.27 1622
26 18 5.88 3.94 0.67 1248 5.63 3.77 0.67 1310 5.40 3.62 0.67 1373 5.20 3.48 0.67 1435
26 20 6.13 3.37 0.55 1310 5.88 3.23 0.55 1388 5.70 3.14 0.55 1420 5.50 3.03 0.55 1482
26 22 6.38 2.74 0.43 1357 6.15 2.64 0.43 1443 6.00 2.58 0.43 1482 5.75 2.47 0.43 1544
26 24 6.70 2.08 0.31 1420 6.45 2.00 0.31 1498 6.30 1.95 0.31 1544 6.10 1.89 0.31 1622
26 26 6.90 1.31 0.19 1498 6.70 1.27 0.19 1576 6.60 1.25 0.19 1622 6.40 1.22 0.19 1669
27 18 5.88 4.17 0.71 1248 5.63 3.99 0.71 1310 5.40 3.83 0.71 1373 5.20 3.69 0.71 1435
27 20 6.13 3.61 0.59 1310 5.88 3.47 0.59 1388 5.70 3.36 0.59 1420 5.50 3.25 0.59 1482
27 22 6.38 3.00 0.47 1357 6.15 2.89 0.47 1443 6.00 2.82 0.47 1482 5.75 2.70 0.47 1544
27 24 6.70 2.35 0.35 1420 6.45 2.26 0.35 1498 6.30 2.21 0.35 1544 6.10 2.14 0.35 1622
27 26 6.90 1.59 0.23 1498 6.70 1.54 0.23 1576 6.60 1.52 0.23 1622 6.40 1.47 0.23 1669
28 18 5.88 4.41 0.75 1248 5.63 4.22 0.75 1310 5.40 4.05 0.75 1373 5.20 3.90 0.75 1435
28 20 6.13 3.86 0.63 1310 5.88 3.70 0.63 1388 5.70 3.59 0.63 1420 5.50 3.47 0.63 1482
28 22 6.38 3.25 0.51 1357 6.15 3.14 0.51 1443 6.00 3.06 0.51 1482 5.75 2.93 0.51 1544
28 24 6.70 2.61 0.39 1420 6.45 2.52 0.39 1498 6.30 2.46 0.39 1544 6.10 2.38 0.39 1622
28 26 6.90 1.86 0.27 1498 6.70 1.81 0.27 1576 6.60 1.78 0.27 1622 6.40 1.73 0.27 1669
29 18 5.88 4.64 0.79 1248 5.63 4.44 0.79 1310 5.40 4.27 0.79 1373 5.20 4.11 0.79 1435
29 20 6.13 4.10 0.67 1310 5.88 3.94 0.67 1388 5.70 3.82 0.67 1420 5.50 3.69 0.67 1482
29 22 6.38 3.51 0.55 1357 6.15 3.38 0.55 1443 6.00 3.30 0.55 1482 5.75 3.16 0.55 1544
29 24 6.70 2.88 0.43 1420 6.45 2.77 0.43 1498 6.30 2.71 0.43 1544 6.10 2.62 0.43 1622
29 26 6.90 2.14 0.31 1498 6.70 2.08 0.31 1576 6.60 2.05 0.31 1622 6.40 1.98 0.31 1669
30 18 5.88 4.88 0.83 1248 5.63 4.67 0.83 1310 5.40 4.48 0.83 1373 5.20 4.32 0.83 1435
30 20 6.13 4.35 0.71 1310 5.88 4.17 0.71 1388 5.70 4.05 0.71 1420 5.50 3.91 0.71 1482
30 22 6.38 3.76 0.59 1357 6.15 3.63 0.59 1443 6.00 3.54 0.59 1482 5.75 3.39 0.59 1544
30 24 6.70 3.15 0.47 1420 6.45 3.03 0.47 1498 6.30 2.96 0.47 1544 6.10 2.87 0.47 1622
30 26 6.90 2.42 0.35 1498 6.70 2.35 0.35 1576 6.60 2.31 0.35 1622 6.40 2.24 0.35 1669
31 18 5.88 5.11 0.87 1248 5.63 4.89 0.87 1310 5.40 4.70 0.87 1373 5.20 4.52 0.87 1435
31 20 6.13 4.59 0.75 1310 5.88 4.41 0.75 1388 5.70 4.28 0.75 1420 5.50 4.13 0.75 1482
31 22 6.38 4.02 0.63 1357 6.15 3.87 0.63 1443 6.00 3.78 0.63 1482 5.75 3.62 0.63 1544
31 24 6.70 3.42 0.51 1420 6.45 3.29 0.51 1498 6.30 3.21 0.51 1544 6.10 3.11 0.51 1622
31 26 6.90 2.69 0.39 1498 6.70 2.61 0.39 1576 6.60 2.57 0.39 1622 6.40 2.50 0.39 1669
32 18 5.88 5.35 0.91 1248 5.63 5.12 0.91 1310 5.40 4.91 0.91 1373 5.20 4.73 0.91 1435
32 20 6.13 4.84 0.79 1310 5.88 4.64 0.79 1388 5.70 4.50 0.79 1420 5.50 4.35 0.79 1482
32 22 6.38 4.27 0.67 1357 6.15 4.12 0.67 1443 6.00 4.02 0.67 1482 5.75 3.85 0.67 1544
32 24 6.70 3.69 0.55 1420 6.45 3.55 0.55 1498 6.30 3.47 0.55 1544 6.10 3.36 0.55 1622
32 26 6.90 2.97 0.43 1498 6.70 2.88 0.43 1576 6.60 2.84 0.43 1622 6.40 2.75 0.43 1669
DB(:) WB(:)
INDOOR INDOOR
CAPACITY:5.0(kW) INPUT:1560(W)SHF:0.65
21 OUTDOOR DB(:) 25 27 30
Q SHC SHF Q SHC SHF Q SHC SHF Q SHC SHFINPUT INPUT INPUT INPUT
PERFORMANCE DATA COOL operation Rated frequency 73Hz
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
OB346E --1qxp 07.2.8 6:53 PM Page 20