FILE NO.SVM-04015
SUPPLEMENT
SERVICE MANUAL
AIR-CONDITIONER
SPLIT TYPE
RAS-M10UKV-E3, RAS-M13UKV-E3, RAS-M16UKV-E3
RAS-4M27YAV-E
RAS-M10UKCV-E3, RAS-M13UKCV-E3, RAS-M16UKCV-E3
RAS-4M27YACV-E
RAS-M10UKV-E3, RAS-M13UKV-E3, RAS-M16UKV-E3
RAS-3M26YAV-E
R410A
May 2004
CONTENTS
1. SPECIFICATIONS....................................................................................... 3
2. REFRIGERANT R410A ............................................................................ 26
3. CONSTRUCTION VIEWS ......................................................................... 34
4. WIRING DIAGRAM ................................................................................... 36
5. SPECIFICATIONS OF ELECTRICAL PARTS .......................................... 38
6. REFRIGERANT CYCLE DIAGRAM ......................................................... 40
7. CONTROL BLOCK DIAGRAM ................................................................. 48
8. OPERATION DESCRIPTION .................................................................... 50
9. INSTALLATION PROCEDURE ................................................................. 64
10. HOW TO DIAGNOSE THE TROUBLE ....................................................... 79
11. HOW TO REPLACE THE MAIN PARTS ................................................... 100
12. EXPLODED VIEWS AND PARTS LIST .................................................. 110
–2–
1. SPECIFICATIONS
1-1. Specifications
RAS-M10UKV-E3, RAS-M13UKV-E3, RAS-M16UKV-E3/RAS-4M27YAV-E, RAS-3M26YAV-E
Unit model
Indoor
Outdoor
Cooling capacity
Cooling capacity range
Heating capacity
Heating capacity range
Power supply
Electric
Indoor
characteristics
Total
(kW)
(kW)
(kW)
(kW)
Unit model
Running current
Power consumption
Power factor
Operation mode
Running current
Power consumption
Power factor
Starting current
C.O.P. (Cooling/Heating)
Operating
Indoor
Unit model
(Cooling/Heating) High
noise
Medium
Low
Unit model
Outdoor
(Cooling/Heating) Full indoor units operating
Indoor unit
Unit model
Dimension
Height
Width
Depth
Net weight
Fan motor output
Air flow rate (Cooling/Heating)
Outdoor unit Unit model
Dimension
Height
Width
Depth
Net weight
Compressor
Motor output
Type
Model
Fan motor output
Air flow rate
Piping
Type
connection
Indoor unit
Unit model
Liquid side
Gas side
Outdoor unit
Unit model
A unit liquid side/gas side
B unit liquid side/gas side
C unit liquid side/gas side
D unit liquid side/gas side
Maximum length (per unit)
Maximum length (total)
Maximum chargeless length
Maximum height difference
Refrigerant
Name of refrigerant
Weight
Wiring connection
Power supply
Interconnection
Usable temperature range
Indoor
Outdoor
Accessory
Indoor unit
Installation plate
Wireless remote controller
Label
Remote controller holder
Pan head wood screw
Purifying filter
Deodorizing filter
Battery
Mounting screw
Installation manual
Installation manual
Outdoor unit
Owner's manual
(A)
(W)
(%)
(A)
(W)
(%)
(A)
dB (A)
dB (A)
dB (A)
dB (A)
(mm)
(mm)
(mm)
(kg)
(W)
(m³/h)
(mm)
(mm)
(mm)
(kg)
(W)
(W)
(m³/h)
(m)
(m)
(m)
(m)
(kg)
(°C)
(°C)
RAS-M10UKV-E3, RAS-M13UKV-E3, RAS-M16UKV-E3
RAS-4M27YAV-E
RAS-3M26YAV-E
8.0
7.5
1.4 – 9.2
1.4 – 8.9
9.0
9.0
0.8 – 11.0
0.8 – 10.8
220/230/240V, 1Ph, 50/60Hz
RAS-M10UKV-E3
RAS-M13UKV-E3
RAS-M16UKV-E3
0.15
0.15
0.15
30
30
30
91/87/83
91/87/83
91/87/83
Cooling
Heating
Cooling
Heating
11.60/11.09/10.63 10.44/9.98/9.57
10.44/9.98/9.57 11.83/11.31/10.84
2500
2250
2250
2550
98
98
98
98
11.60/11.09/10.63
11.83/11.31/10.84
3.20/4.00
3.33/3.53
RAS-M10UKV-E3
RAS-M13UKV-E3
RAS-M16UKV-E3
36/39
39/40
42/42
33/35
35/35
39/39
28/29
28/29
33/33
RAS-4M27YAV-E
RAS-3M26YAV-E
48/48
48/48
RAS-M10UKV-E3
RAS-M13UKV-E3
RAS-M16UKV-E3
275
275
275
790
790
790
208
208
208
10
10
10
19
19
19
470/520
520/560
600/600
RAS-4M27YAV-E
RAS-3M26YAV-E
795
795
900
900
320
320
65
64
2000
Twin rotary type with DC-inverter variable speed control
DA220A2F-20L
60
High : 3000, Medium : 2800
Flare connection
RAS-M10UKV-E3
RAS-M13UKV-E3
RAS-M16UKV-E3
Ø6.35
Ø6.35
Ø6.35
Ø9.52
Ø9.52
Ø12.7
RAS-4M27YAV-E
RAS-3M26YAV-E
Ø6.35/Ø12.7
Ø6.35/Ø12.7
Ø6.35/Ø9.52
Ø6.35/Ø9.52
Ø6.35/Ø9.52
Ø6.35/Ø9.52
Ø6.35/Ø9.52
—
25
25
70
50
70
50
15
15
R410A
2.4
3 wires : includes earth
4 wires : includes earth
21 – 32/0 – 28
10 – 43/–10– 21
1
1
2
1
2 (Ø3.1 x 16L)
1
1
2
6 (Ø4 x 25L)
1
1
1
• For performance when each indoor unit is combined with other unit, refer to the separate table.
• The specifications may be subject to change without notice for purpose of improvement.
–3–
RAS-M10UKCV-E3, RAS-M13UKCV-E3, RAS-M16UKCV-E3/RAS-4M27YACV-E
Unit model
Indoor
Outdoor
Cooling capacity
Cooling capacity range
Power supply
Electric
Indoor
characteristics
Total
C.O.P.
Operating
noise
Indoor
Outdoor
Indoor unit
Unit model
Dimension
(kW)
(kW)
Unit model
Running current
Power consumption
Power factor
Running current
Power consumption
Power factor
Starting current
Unit model
High
Medium
Low
Unit model
4 indoor units operating
Height
Width
Depth
(A)
(W)
(%)
(A)
(W)
(%)
(A)
dB (A)
dB (A)
B (A)
dB (A)
(mm)
(mm)
(mm)
(kg)
(W)
(m³/h)
Net weight
Fan motor output
Air flow rate
Outdoor unit
Unit model
Dimension
Height
(mm)
Width
(mm)
Depth
(mm)
Net weight
(kg)
Compressor
Motor output
(W)
Type
Model
Fan motor output
(W)
Air flow rate
(m³/h)
Piping
Type
connection
Indoor unit
Unit model
Liquid side
Gas side
Outdoor unit
Unit model
A unit liquid side/gas side
B unit liquid side/gas side
C unit liquid side/gas side
D unit liquid side/gas side
Maximum length (per unit)
(m)
Maximum length (total)
(m)
Maximum chargeless length
(m)
Maximum height difference
(m)
Refrigerant
Name of refrigerant
Weight
(kg)
Wiring connection
Power supply
Interconnection
Usable temperature range
Indoor
(°C)
Outdoor
(°C)
Accessory
Indoor unit
Installation plate
Wireless remote controller
Label
Remote controller holder
Pan head wood screw
Purifying filter
Deodorizing filter
Battery
Mounting screw
Installation manual
Installation manual
Outdoor unit
Owner's manual
RAS-M10UKCV-E3, RAS-M13UKCV-E3, RAS-M16UKCV-E3
RAS-4M27YACV-E
8.0
1.4 – 9.2
220/230/240V, 1Ph, 50/60Hz
RAS-M10UKCV-E3
RAS-M13UKCV-E3
RAS-M16UKCV-E3
0.15
0.15
0.15
30
30
30
91/87/83
91/87/83
91/87/83
11.60/11.09/10.63
2500
98
11.60/11.09/10.63
3.20
RAS-M10UKCV-E3
RAS-M13UKCV-E3
RAS-M16UKCV-E3
36
39
42
33
35
39
28
28
33
RAS-4M27YACV-E
48
RAS-M10UKCV-E3
RAS-M13UKCV-E3
RAS-M16UKCV-E3
275
275
275
790
790
790
208
208
208
10
10
10
19
19
19
470
520
600
RAS-4M27YACV-E
795
900
320
63
2000
Twin rotary type with DC-inverter variable speed control
DA220A2F-20L
60
High : 3000, Medium : 2800
Flare connection
RAS-M10UKCV-E3
RAS-M13UKCV-E3
RAS-M16UKCV-E3
Ø6.35
Ø6.35
Ø6.35
Ø9.52
Ø9.52
Ø12.7
RAS-4M27YACV-E
Ø6.35/Ø12.7
Ø6.35/Ø9.52
Ø6.35/Ø9.52
Ø6.35/Ø9.52
25
70
70
15
R410A
2.2
3 wires : includes earth
4 wires : includes earth
21 – 32
10 – 43
1
1
2
1
2 (Ø3.1 x 16L)
1
1
2
6 (Ø4 x 25L)
1
1
1
• For performance when each indoor unit is combined with other unit, refer to the separate table.
• The specifications may be subject to change without notice for purpose of improvement.
–4–
1-2. Specifications of Performance When Each Indoor Unit is Combined with other Unit
Outdoor Unit : RAS-4M27YAV-E
<Cooling/220V>
Cooling
capacity
(kW)
Power
consumption
(W)
Operating
current
(A)
Outdoor
noise
(dB)
–
2.7
(1.4 to 3.2)
750
(640 to 950)
3.87
(3.68 to 4.64)
48
–
–
3.7
(1.4 to 4.4)
1200
(640 to 1520)
5.74
(3.68 to 7.20)
48
–
–
–
4.5
(1.4 to 5.0)
1650
(640 to 2000)
7.81
(3.68 to 9.28)
48
2.70
2.70
–
–
5.4
(2.5 to 6.3)
1530
(640 to 2040)
7.10
(3.64 to 9.46)
48
–
3.41
2.49
–
–
5.9
(2.7 to 6.6)
1810
(660 to 2220)
8.40
(3.75 to 10.30)
48
–
–
3.94
2.36
–
–
6.3
(2.9 to 6.9)
2040
(670 to 2400)
9.46
(3.81 to 11.13)
48
13
–
–
3.15
3.15
–
–
6.3
(2.9 to 6.9)
2040
(670 to 2400)
9.46
(3.81 to 11.13)
48
16
13
–
–
3.73
3.07
–
–
6.8
(3.0 to 7.2)
2320
(690 to 2570)
10.76
(3.92 to 11.92)
48
16
16
–
–
3.60
3.60
–
–
7.2
(3.2 to 7.5)
2550
(700 to 2750)
11.83
(3.98 to 12.76)
48
10
10
10
–
2.53
2.53
2.53
–
7.6
(3.8 to 8.2)
2400
(950 to 2720)
11.13
(4.80 to 12.62)
48
13
10
10
–
3.13
2.28
2.28
–
7.7
(3.9 to 8.3)
2410
(960 to 2740)
11.18
(4.85 to 12.71)
48
16
10
10
–
3.50
2.10
2.10
–
7.7
(4.0 to 8.5)
2410
(960 to 2790)
11.18
(4.85 to 12.94)
48
13
13
10
–
2.82
2.82
2.06
–
7.7
(4.0 to 8.5)
2410
(960 to 2790)
11.18
(4.85 to 12.94)
48
16
13
10
–
3.22
2.65
1.93
–
7.8
(4.1 to 8.6)
2430
(970 to 2810)
11.27
(4.90 to 13.03)
48
13
13
13
–
2.60
2.60
2.60
–
7.8
(4.1 to 8.6)
2430
(970 to 2810)
11.27
(4.90 to 13.03)
48
16
16
10
–
3.04
3.04
1.82
–
7.9
(4.1 to 8.7)
2440
(970 to 2830)
11.32
(4.90 to 13.13)
48
16
13
13
–
2.99
2.46
2.46
–
7.9
(4.1 to 8.7)
2440
(970 to 2830)
11.32
(4.90 to 13.13)
48
16
16
13
–
2.80
2.80
2.30
–
7.9
(4.2 to 8.9)
2440
(970 to 2880)
11.32
(4.90 to 13.36)
48
16
16
16
–
2.67
2.67
2.67
–
8.0
(4.3 to 9.0)
2450
(980 to 2900)
11.36
(4.95 to 13.45)
48
10
10
10
10
1.98
1.98
1.98
1.98
7.9
(4.0 to 8.7)
2450
(930 to 2800)
11.36
(4.70 to 12.99)
48
13
10
10
10
2.48
1.81
1.81
1.81
7.9
(4.1 to 8.8)
2450
(940 to 2820)
11.36
(4.75 to 13.08)
48
16
10
10
10
2.86
1.71
1.71
1.71
8.0
(4.1 to 9.0)
2500
(940 to 2860)
11.60
(4.75 to 13.27)
48
13
13
10
10
2.31
2.31
1.69
1.69
8.0
(4.1 to 9.0)
2500
(940 to 2860)
11.60
(4.75 to 13.27)
48
16
13
10
10
2.65
2.18
1.59
1.59
8.0
(4.2 to 9.1)
2500
(950 to 2880)
11.60
(4.80 to 13.36)
48
13
13
13
10
2.14
2.14
2.14
1.57
8.0
(4.2 to 9.1)
2500
(950 to 2880)
11.60
(4.80 to 13.36)
48
16
13
13
10
2.47
2.03
2.03
1.48
8.0
(4.2 to 9.2)
2500
(950 to 2900)
11.60
(4.80 to 13.45)
48
13
13
13
13
2.00
2.00
2.00
2.00
8.0
(4.2 to 9.2)
2500
(950 to 2900)
11.60
(4.80 to 13.45)
48
16
16
10
10
2.50
2.50
1.50
1.50
8.0
(4.2 to 9.2)
2500
(950 to 2900)
11.60
(4.80 to 13.45)
48
Power
supply
(V)
Operating
status
A
B
C
D
A
B
C
D
220
1 unit
10
–
–
–
2.7
–
–
13
–
–
–
3.7
–
16
–
–
–
4.5
10
10
–
–
13
10
–
16
10
13
2 units
3 units
4 units
Indoor unit
Unit capacity (kW)
• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/
WB=35/–°C.
• Indoor unit 10 : RAS-M10UKV-E3, 13 : RAS-M13UKV-E3, 16 : RAS-M16UKV-E3
–5–
Outdoor Unit : RAS-4M27YAV-E
<Cooling/230V>
D
Cooling
capacity
(kW)
Power
consumption
(W)
Operating
current
(A)
Outdoor
noise
(dB)
–
–
2.7
(1.4 to 3.2)
750
(640 to 950)
3.71
(3.52 to 4.44)
48
–
–
–
3.7
(1.4 to 4.4)
1200
(640 to 1520)
5.49
(3.52 to 6.88)
48
4.5
–
–
–
4.5
(1.4 to 5.0)
1650
(640 to 2000)
7.47
(3.52 to 8.87)
48
–
2.70
2.70
–
–
5.4
(2.5 to 6.3)
1530
(640 to 2040)
6.79
(3.48 to 9.05)
48
–
–
3.41
2.49
–
–
5.9
(2.7 to 6.6)
1810
(660 to 2220)
8.03
(3.59 to 9.85)
48
10
–
–
3.94
2.36
–
–
6.3
(2.9 to 6.9)
2040
(670 to 2400)
9.05
(3.64 to 10.65)
48
13
13
–
–
3.15
3.15
–
–
6.3
(2.9 to 6.9)
2040
(670 to 2400)
9.05
(3.64 to 10.65)
48
16
13
–
–
3.73
3.07
–
–
6.8
(3.0 to 7.2)
2320
(690 to 2570)
10.29
(3.75 to 11.40)
48
16
16
–
–
3.60
3.60
–
–
7.2
(3.2 to 7.5)
2550
(700 to 2750)
11.31
(3.80 to 12.20)
48
10
10
10
–
2.53
2.53
2.53
–
7.6
(3.8 to 8.2)
2400
(950 to 2720)
10.65
(4.59 to 12.07)
48
13
10
10
–
3.13
2.28
2.28
–
7.7
(3.9 to 8.3)
2410
(960 to 2740)
10.69
(4.64 to 12.16)
48
16
10
10
–
3.50
2.10
2.10
–
7.7
(4.0 to 8.5)
2410
(960 to 2790)
10.69
(4.64 to 12.38)
48
13
13
10
–
2.82
2.82
2.06
–
7.7
(4.0 to 8.5)
2410
(960 to 2790)
10.69
(4.64 to 12.38)
48
16
13
10
–
3.22
2.65
1.93
–
7.8
(4.1 to 8.6)
2430
(970 to 2810)
10.78
(4.69 to 12.47)
48
13
13
13
–
2.60
2.60
2.60
–
7.8
(4.1 to 8.6)
2430
(970 to 2810)
10.78
(4.69 to 12.47)
48
16
16
10
–
3.04
3.04
1.82
–
7.9
(4.1 to 8.7)
2440
(970 to 2830)
10.83
(4.69 to 12.56)
48
16
13
13
–
2.99
2.46
2.46
–
7.9
(4.1 to 8.7)
2440
(970 to 2830)
10.83
(4.69 to 12.56)
48
16
16
13
–
2.80
2.80
2.30
–
7.9
(4.2 to 8.9)
2440
(970 to 2880)
10.83
(4.69 to 12.78)
48
16
16
16
–
2.67
2.67
2.67
–
8.0
(4.3 to 9.0)
2450
(980 to 2900)
10.87
(4.73 to 12.87)
48
10
10
10
10
1.98
1.98
1.98
1.98
7.9
(4.0 to 8.7)
2450
(930 to 2800)
10.87
(4.49 to 12.42)
48
13
10
10
10
2.48
1.81
1.81
1.81
7.9
(4.1 to 8.8)
2450
(940 to 2820)
10.87
(4.54 to 12.51)
48
16
10
10
10
2.86
1.71
1.71
1.71
8.0
(4.1 to 9.0)
2500
(940 to 2860)
11.09
(4.54 to 12.69)
48
13
13
10
10
2.31
2.31
1.69
1.69
8.0
(4.1 to 9.0)
2500
(940 to 2860)
11.09
(4.54 to 12.69)
48
16
13
10
10
2.65
2.18
1.59
1.59
8.0
(4.2 to 9.1)
2500
(950 to 2880)
11.09
(4.59 to 12.78)
48
13
13
13
10
2.14
2.14
2.14
1.57
8.0
(4.2 to 9.1)
2500
(950 to 2880)
11.09
(4.59 to 12.78)
48
16
13
13
10
2.47
2.03
2.03
1.48
8.0
(4.2 to 9.2)
2500
(950 to 2900)
11.09
(4.59 to 12.87)
48
13
13
13
13
2.00
2.00
2.00
2.00
8.0
(4.2 to 9.2)
2500
(950 to 2900)
11.09
(4.59 to 12.87)
48
16
16
10
10
2.50
2.50
1.50
1.50
8.0
(4.2 to 9.2)
2500
(950 to 2900)
11.09
(4.59 to 12.87)
48
Power
supply
(V)
Operating
status
A
B
C
D
A
B
C
230
1 unit
10
–
–
–
2.7
–
13
–
–
–
3.7
16
–
–
–
10
10
–
13
10
16
2 units
3 units
4 units
Indoor unit
Unit capacity (kW)
• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/
WB=35/–°C.
• Indoor unit 10 : RAS-M10UKV-E3, 13 : RAS-M13UKV-E3, 16 : RAS-M16UKV-E3
–6–
Outdoor Unit : RAS-4M27YAV-E
<Cooling/240V>
D
Cooling
capacity
(kW)
Power
consumption
(W)
Operating
current
(A)
Outdoor
noise
(dB)
–
–
2.7
(1.4 to 3.2)
750
(640 to 950)
3.55
(3.38 to 4.26)
48
–
–
–
3.7
(1.4 to 4.4)
1200
(640 to 1520)
5.26
(3.38 to 6.60)
48
4.5
–
–
–
4.5
(1.4 to 5.0)
1650
(640 to 2000)
7.16
(3.38 to 8.50)
48
–
2.70
2.70
–
–
5.4
(2.5 to 6.3)
1530
(640 to 2040)
6.51
(3.33 to 8.67)
48
–
–
3.41
2.49
–
–
5.9
(2.7 to 6.6)
1810
(660 to 2220)
7.70
(3.44 to 9.44)
48
10
–
–
3.94
2.36
–
–
6.3
(2.9 to 6.9)
2040
(670 to 2400)
8.67
(3.49 to 10.20)
48
13
13
–
–
3.15
3.15
–
–
6.3
(2.9 to 6.9)
2040
(670 to 2400)
8.67
(3.49 to 10.20)
48
16
13
–
–
3.73
3.07
–
–
6.8
(3.0 to 7.2)
2320
(690 to 2570)
9.86
(3.59 to 10.93)
48
16
16
–
–
3.60
3.60
–
–
7.2
(3.2 to 7.5)
2550
(700 to 2750)
10.84
(3.65 to 11.69)
48
10
10
10
–
2.53
2.53
2.53
–
7.6
(3.8 to 8.2)
2400
(950 to 2720)
10.20
(4.40 to 11.56)
48
13
10
10
–
3.13
2.28
2.28
–
7.7
(3.9 to 8.3)
2410
(960 to 2740)
10.25
(4.44 to 11.65)
48
16
10
10
–
3.50
2.10
2.10
–
7.7
(4.0 to 8.5)
2410
(960 to 2790)
10.25
(4.44 to 11.86)
48
13
13
10
–
2.82
2.82
2.06
–
7.7
(4.0 to 8.5)
2410
(960 to 2790)
10.25
(4.44 to 11.86)
48
16
13
10
–
3.22
2.65
1.93
–
7.8
(4.1 to 8.6)
2430
(970 to 2810)
10.33
(4.49 to 11.95)
48
13
13
13
–
2.60
2.60
2.60
–
7.8
(4.1 to 8.6)
2430
(970 to 2810)
10.33
(4.49 to 11.95)
48
16
16
10
–
3.04
3.04
1.82
–
7.9
(4.1 to 8.7)
2440
(970 to 2830)
10.37
(4.49 to 12.03)
48
16
13
13
–
2.99
2.46
2.46
–
7.9
(4.1 to 8.7)
2440
(970 to 2830)
10.37
(4.49 to 12.03)
48
16
16
13
–
2.80
2.80
2.30
–
7.9
(4.2 to 8.9)
2440
(970 to 2880)
10.37
(4.49 to 12.24)
48
16
16
16
–
2.67
2.67
2.67
–
8.0
(4.3 to 9.0)
2450
(980 to 2900)
10.42
(4.54 to 12.33)
48
10
10
10
10
1.98
1.98
1.98
1.98
7.9
(4.0 to 8.7)
2450
(930 to 2800)
10.42
(4.31 to 11.90)
48
13
10
10
10
2.48
1.81
1.81
1.81
7.9
(4.1 to 8.8)
2450
(940 to 2820)
10.42
(4.35 to 11.99)
48
16
10
10
10
2.86
1.71
1.71
1.71
8.0
(4.1 to 9.0)
2500
(940 to 2860)
10.63
(4.35 to 12.16)
48
13
13
10
10
2.31
2.31
1.69
1.69
8.0
(4.1 to 9.0)
2500
(940 to 2860)
10.63
(4.35 to 12.16)
48
16
13
10
10
2.65
2.18
1.59
1.59
8.0
(4.2 to 9.1)
2500
(950 to 2880)
10.63
(4.40 to 12.24)
48
13
13
13
10
2.14
2.14
2.14
1.57
8.0
(4.2 to 9.1)
2500
(950 to 2880)
10.63
(4.40 to 12.24)
48
16
13
13
10
2.47
2.03
2.03
1.48
8.0
(4.2 to 9.2)
2500
(950 to 2900)
10.63
(4.40 to 12.33)
48
13
13
13
13
2.00
2.00
2.00
2.00
8.0
(4.2 to 9.2)
2500
(950 to 2900)
10.63
(4.40 to 12.33)
48
16
16
10
10
2.50
2.50
1.50
1.50
8.0
(4.2 to 9.2)
2500
(950 to 2900)
10.63
(4.40 to 12.33)
48
Power
supply
(V)
Operating
status
A
B
C
D
A
B
C
240
1 unit
10
–
–
–
2.7
–
13
–
–
–
3.7
16
–
–
–
10
10
–
13
10
16
2 units
3 units
4 units
Indoor unit
Unit capacity (kW)
• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/
WB=35/–°C.
• Indoor unit 10 : RAS-M10UKV-E3, 13 : RAS-M13UKV-E3, 16 : RAS-M16UKV-E3
–7–
Outdoor Unit : RAS-4M27YAV-E
<Heating/220V>
D
Heating
capacity
(kW)
Power
consumption
(W)
Operating
current
(A)
Outdoor
noise
(dB)
–
–
4.0
(0.8 to 5.2)
1450
(300 to 1980)
6.73
(1.87 to 9.18)
48
–
–
–
5.0
(0.8 to 6.5)
2050
(310 to 2750)
9.51
(1.93 to 12.76)
48
5.5
–
–
–
5.5
(0.8 to 6.9)
2400
(310 to 3000)
11.13
(1.93 to 13.91)
48
–
3.60
3.60
–
–
7.2
(1.5 to 10.0)
2100
(320 to 3200)
9.74
(1.94 to 14.84)
48
–
–
4.22
3.38
–
–
7.6
(1.5 to 10.1)
2320
(320 to 3210)
10.76
(1.94 to 14.89)
48
10
–
–
4.57
3.33
–
–
7.9
(1.5 to 10.1)
2480
(320 to 3230)
11.50
(1.94 to 14.98)
48
13
13
–
–
3.95
3.95
–
–
7.9
(1.5 to 10.1)
2480
(320 to 3230)
11.50
(1.94 to 14.98)
48
16
13
–
–
4.35
3.95
–
–
8.3
(1.5 to 10.2)
2700
(320 to 3240)
12.52
(1.94 to 15.03)
48
16
16
–
–
4.30
4.30
–
–
8.6
(1.5 to 10.2)
2860
(320 to 3250)
13.27
(1.94 to 15.07)
48
10
10
10
–
2.87
2.87
2.87
–
8.6
(2.0 to 10.4)
2300
(380 to 2750)
10.67
(2.16 to 12.76)
48
13
10
10
–
3.35
2.68
2.68
–
8.7
(2.0 to 10.5)
2350
(380 to 2760)
10.90
(2.16 to 12.80)
48
16
10
10
–
3.54
2.58
2.58
–
8.7
(2.0 to 10.5)
2350
(380 to 2760)
10.90
(2.16 to 12.80)
48
13
13
10
–
3.11
3.11
2.49
–
8.7
(2.0 to 10.5)
2350
(380 to 2760)
10.90
(2.16 to 12.80)
48
16
13
10
–
3.34
3.03
2.43
–
8.8
(2.0 to 10.6)
2400
(380 to 2780)
11.13
(2.16 to 12.89)
48
13
13
13
–
2.93
2.93
2.93
–
8.8
(2.0 to 10.6)
2400
(380 to 2780)
11.13
(2.16 to 12.89)
48
16
16
10
–
3.26
3.26
2.37
–
8.9
(2.0 to 10.7)
2450
(380 to 2790)
11.36
(2.16 to 12.94)
48
16
13
13
–
3.16
2.87
2.87
–
8.9
(2.0 to 10.7)
2450
(380 to 2790)
11.36
(2.16 to 12.94)
48
16
16
13
–
3.06
3.06
2.78
–
8.9
(2.0 to 10.7)
2450
(380 to 2790)
11.36
(2.16 to 12.94)
48
16
16
16
–
3.00
3.00
3.00
–
9.0
(2.0 to 10.8)
2500
(380 to 2800)
11.60
(2.16 to 12.99)
48
10
10
10
10
2.23
2.23
2.23
2.23
8.9
(2.2 to 10.8)
2100
(450 to 2810)
9.74
(2.56 to 13.03)
48
13
10
10
10
2.62
2.09
2.09
2.09
8.9
(2.2 to 10.9)
2100
(460 to 2830)
9.74
(2.61 to 13.13)
48
16
10
10
10
2.83
2.06
2.06
2.06
9.0
(2.2 to 10.9)
2250
(460 to 2830)
10.44
(2.61 to 13.13)
48
13
13
10
10
2.50
2.50
2.00
2.00
9.0
(2.2 to 10.9)
2250
(470 to 2830)
10.44
(2.67 to 13.13)
48
16
13
10
10
2.68
2.43
1.95
1.95
9.0
(2.2 to 11.0)
2250
(480 to 2850)
10.44
(2.73 to 13.22)
48
13
13
13
10
2.37
2.37
2.37
1.89
9.0
(2.2 to 11.0)
2250
(480 to 2850)
10.44
(2.73 to 13.22)
48
16
13
13
10
2.54
2.31
2.31
1.85
9.0
(2.2 to 11.0)
2250
(490 to 2850)
10.44
(2.78 to 13.22)
48
13
13
13
13
2.25
2.25
2.25
2.25
9.0
(2.2 to 11.0)
2250
(490 to 2850)
10.44
(2.78 to 13.22)
48
16
16
10
10
2.61
2.61
1.89
1.89
9.0
(2.2 to 11.0)
2250
(500 to 2850)
10.44
(2.84 to 13.22)
48
Power
supply
(V)
Operating
status
A
B
C
D
A
B
C
220
1 unit
10
–
–
–
4.0
–
13
–
–
–
5.0
16
–
–
–
10
10
–
13
10
16
2 units
3 units
4 units
Indoor unit
Unit capacity (kW)
• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/
WB=35/–°C.
• Indoor unit 10 : RAS-M10UKV-E3, 13 : RAS-M13UKV-E3, 16 : RAS-M16UKV-E3
–8–
Outdoor Unit : RAS-4M27YAV-E
<Heating/230V>
D
Heating
capacity
(kW)
Power
consumption
(W)
Operating
current
(A)
Outdoor
noise
(dB)
–
–
4.0
(0.8 to 5.2)
1450
(300 to 1980)
6.43
(1.79 to 8.78)
48
–
–
–
5.0
(0.8 to 6.5)
2050
(310 to 2750)
9.09
(1.85 to 12.20)
48
5.5
–
–
–
5.5
(0.8 to 6.9)
2400
(310 to 3000)
10.65
(1.85 to 13.31)
48
–
3.60
3.60
–
–
7.2
(1.5 to 10.0)
2100
(320 to 3200)
9.32
(1.86 to 14.20)
48
–
–
4.22
3.38
–
–
7.6
(1.5 to 10.1)
2320
(320 to 3210)
10.29
(1.86 to 14.24)
48
10
–
–
4.57
3.33
–
–
7.9
(1.5 to 10.1)
2480
(320 to 3230)
11.00
(1.86 to 14.33)
48
13
13
–
–
3.95
3.95
–
–
7.9
(1.5 to 10.1)
2480
(320 to 3230)
11.00
(1.86 to 14.33)
48
16
13
–
–
4.35
3.95
–
–
8.3
(1.5 to 10.2)
2700
(320 to 3240)
11.98
(1.86 to 14.37)
48
16
16
–
–
4.30
4.30
–
–
8.6
(1.5 to 10.2)
2860
(320 to 3250)
12.69
(1.86 to 14.42)
48
10
10
10
–
2.87
2.87
2.87
–
8.6
(2.0 to 10.4)
2300
(380 to 2750)
10.20
(2.07 to 12.20)
48
13
10
10
–
3.35
2.68
2.68
–
8.7
(2.0 to 10.5)
2350
(380 to 2760)
10.43
(2.07 to 12.24)
48
16
10
10
–
3.54
2.58
2.58
–
8.7
(2.0 to 10.5)
2350
(380 to 2760)
10.43
(2.07 to 12.24)
48
13
13
10
–
3.11
3.11
2.49
–
8.7
(2.0 to 10.5)
2350
(380 to 2760)
10.43
(2.07 to 12.24)
48
16
13
10
–
3.34
3.03
2.43
–
8.8
(2.0 to 10.6)
2400
(380 to 2780)
10.65
(2.07 to 12.33)
48
13
13
13
–
2.93
2.93
2.93
–
8.8
(2.0 to 10.6)
2400
(380 to 2780)
10.65
(2.07 to 12.33)
48
16
16
10
–
3.26
3.26
2.37
–
8.9
(2.0 to 10.7)
2450
(380 to 2790)
10.87
(2.07 to 12.38)
48
16
13
13
–
3.16
2.87
2.87
–
8.9
(2.0 to 10.7)
2450
(380 to 2790)
10.87
(2.07 to 12.38)
48
16
16
13
–
3.06
3.06
2.78
–
8.9
(2.0 to 10.7)
2450
(380 to 2790)
10.87
(2.07 to 12.38)
48
16
16
16
–
3.00
3.00
3.00
–
9.0
(2.0 to 10.8)
2500
(380 to 2800)
11.09
(2.07 to 12.42)
48
10
10
10
10
2.23
2.23
2.23
2.23
8.9
(2.2 to 10.8)
2100
(450 to 2810)
9.32
(2.45 to 12.47)
48
13
10
10
10
2.62
2.09
2.09
2.09
8.9
(2.2 to 10.9)
2100
(460 to 2830)
9.32
(2.50 to 12.56)
48
16
10
10
10
2.83
2.06
2.06
2.06
9.0
(2.2 to 10.9)
2250
(460 to 2830)
9.98
(2.50 to 12.56)
48
13
13
10
10
2.50
2.50
2.00
2.00
9.0
(2.2 to 10.9)
2250
(470 to 2830)
9.98
(2.55 to 12.56)
48
16
13
10
10
2.68
2.43
1.95
1.95
9.0
(2.2 to 11.0)
2250
(480 to 2850)
9.98
(2.61 to 12.64)
48
13
13
13
10
2.37
2.37
2.37
1.89
9.0
(2.2 to 11.0)
2250
(480 to 2850)
9.98
(2.61 to 12.64)
48
16
13
13
10
2.54
2.31
2.31
1.85
9.0
(2.2 to 11.0)
2250
(490 to 2850)
9.98
(2.66 to 12.64)
48
13
13
13
13
2.25
2.25
2.25
2.25
9.0
(2.2 to 11.0)
2250
(490 to 2850)
9.98
(2.66 to 12.64)
48
16
16
10
10
2.61
2.61
1.89
1.89
9.0
(2.2 to 11.0)
2250
(500 to 2850)
9.98
(2.72 to 12.64)
48
Power
supply
(V)
Operating
status
A
B
C
D
A
B
C
230
1 unit
10
–
–
–
4.0
–
13
–
–
–
5.0
16
–
–
–
10
10
–
13
10
16
2 units
3 units
4 units
Indoor unit
Unit capacity (kW)
• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/
WB=35/–°C.
• Indoor unit 10 : RAS-M10UKV-E3, 13 : RAS-M13UKV-E3, 16 : RAS-M16UKV-E3
–9–
Outdoor Unit : RAS-4M27YAV-E
<Heating/240V>
D
Heating
capacity
(kW)
Power
consumption
(W)
Operating
current
(A)
Outdoor
noise
(dB)
–
–
4.0
(0.8 to 5.2)
1450
(300 to 1980)
6.16
(1.71 to 8.42)
48
–
–
–
5.0
(0.8 to 6.5)
2050
(310 to 2750)
8.72
(1.77 to 11.69)
48
5.5
–
–
–
5.5
(0.8 to 6.9)
2400
(310 to 3000)
10.20
(1.77 to 12.76)
48
–
3.60
3.60
–
–
7.2
(1.5 to 10.0)
2100
(320 to 3200)
8.93
(1.78 to 13.61)
48
–
–
4.22
3.38
–
–
7.6
(1.5 to 10.1)
2320
(320 to 3210)
9.86
(1.78 to 13.65)
48
10
–
–
4.57
3.33
–
–
7.9
(1.5 to 10.1)
2480
(320 to 3230)
10.54
(1.78 to 13.73)
48
13
13
–
–
3.95
3.95
–
–
7.9
(1.5 to 10.1)
2480
(320 to 3230)
10.54
(1.78 to 13.73)
48
16
13
–
–
4.35
3.95
–
–
8.3
(1.5 to 10.2)
2700
(320 to 3240)
11.48
(1.78 to 13.78)
48
16
16
–
–
4.30
4.30
–
–
8.6
(1.5 to 10.2)
2860
(320 to 3250)
12.16
(1.78 to 13.82)
48
10
10
10
–
2.87
2.87
2.87
–
8.6
(2.0 to 10.4)
2300
(380 to 2750)
9.78
(1.98 to 11.69)
48
13
10
10
–
3.35
2.68
2.68
–
8.7
(2.0 to 10.5)
2350
(380 to 2760)
9.99
(1.98 to 11.73)
48
16
10
10
–
3.54
2.58
2.58
–
8.7
(2.0 to 10.5)
2350
(380 to 2760)
9.99
(1.98 to 11.73)
48
13
13
10
–
3.11
3.11
2.49
–
8.7
(2.0 to 10.5)
2350
(380 to 2760)
9.99
(1.98 to 11.73)
48
16
13
10
–
3.34
3.03
2.43
–
8.8
(2.0 to 10.6)
2400
(380 to 2780)
10.20
(1.98 to 11.82)
48
13
13
13
–
2.93
2.93
2.93
–
8.8
(2.0 to 10.6)
2400
(380 to 2780)
10.20
(1.98 to 11.82)
48
16
16
10
–
3.26
3.26
2.37
–
8.9
(2.0 to 10.7)
2450
(380 to 2790)
10.42
(1.98 to 11.86)
48
16
13
13
–
3.16
2.87
2.87
–
8.9
(2.0 to 10.7)
2450
(380 to 2790)
10.42
(1.98 to 11.86)
48
16
16
13
–
3.06
3.06
2.78
–
8.9
(2.0 to 10.7)
2450
(380 to 2790)
10.42
(1.98 to 11.86)
48
16
16
16
–
3.00
3.00
3.00
–
9.0
(2.0 to 10.8)
2500
(380 to 2800)
10.63
(1.98 to 11.90)
48
10
10
10
10
2.23
2.23
2.23
2.23
8.9
(2.2 to 10.8)
2100
(450 to 2810)
8.93
(2.34 to 11.95)
48
13
10
10
10
2.62
2.09
2.09
2.09
8.9
(2.2 to 10.9)
2100
(460 to 2830)
8.93
(2.40 to 12.03)
48
16
10
10
10
2.83
2.06
2.06
2.06
9.0
(2.2 to 10.9)
2250
(460 to 2830)
9.57
(2.40 to 12.03)
48
13
13
10
10
2.50
2.50
2.00
2.00
9.0
(2.2 to 10.9)
2250
(470 to 2830)
9.57
(2.45 to 12.03)
48
16
13
10
10
2.68
2.43
1.95
1.95
9.0
(2.2 to 11.0)
2250
(480 to 2850)
9.57
(2.50 to 12.12)
48
13
13
13
10
2.37
2.37
2.37
1.89
9.0
(2.2 to 11.0)
2250
(480 to 2850)
9.57
(2.50 to 12.12)
48
16
13
13
10
2.54
2.31
2.31
1.85
9.0
(2.2 to 11.0)
2250
(490 to 2850)
9.57
(2.55 to 12.12)
48
13
13
13
13
2.25
2.25
2.25
2.25
9.0
(2.2 to 11.0)
2250
(490 to 2850)
9.57
(2.55 to 12.12)
48
16
16
10
10
2.61
2.61
1.89
1.89
9.0
(2.2 to 11.0)
2250
(500 to 2850)
9.57
(2.60 to 12.12)
48
Power
supply
(V)
Operating
status
A
B
C
D
A
B
C
240
1 unit
10
–
–
–
4.0
–
13
–
–
–
5.0
16
–
–
–
10
10
–
13
10
16
2 units
3 units
4 units
Indoor unit
Unit capacity (kW)
• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/
WB=35/–°C.
• Indoor unit 10 : RAS-M10UKV-E3, 13 : RAS-M13UKV-E3, 16 : RAS-M16UKV-E3
– 10 –
Outdoor Unit : RAS-4M27YACV-E
<Cooling/220V>
D
Cooling
capacity
(kW)
Power
consumption
(W)
Operating
current
(A)
Outdoor
noise
(dB)
–
–
2.7
(1.4 to 3.2)
750
(640 to 950)
3.87
(3.68 to 4.64)
48
–
–
–
3.7
(1.4 to 4.4)
1200
(640 to 1520)
5.74
(3.68 to 7.20)
48
4.5
–
–
–
4.5
(1.4 to 5.0)
1650
(640 to 2000)
7.81
(3.68 to 9.28)
48
–
2.70
2.70
–
–
5.4
(2.5 to 6.3)
1530
(640 to 2040)
7.10
(3.64 to 9.46)
48
–
–
3.41
2.49
–
–
5.9
(2.7 to 6.6)
1810
(660 to 2220)
8.40
(3.75 to 10.30)
48
10
–
–
3.94
2.36
–
–
6.3
(2.9 to 6.9)
2040
(670 to 2400)
9.46
(3.81 to 11.13)
48
13
13
–
–
3.15
3.15
–
–
6.3
(2.9 to 6.9)
2040
(670 to 2400)
9.46
(3.81 to 11.13)
48
16
13
–
–
3.73
3.07
–
–
6.8
(3.0 to 7.2)
2320
(690 to 2570)
10.76
(3.92 to 11.92)
48
16
16
–
–
3.60
3.60
–
–
7.2
(3.2 to 7.5)
2550
(700 to 2750)
11.83
(3.98 to 12.76)
48
10
10
10
–
2.53
2.53
2.53
–
7.6
(3.8 to 8.2)
2400
(950 to 2720)
11.13
(4.80 to 12.62)
48
13
10
10
–
3.13
2.28
2.28
–
7.7
(3.9 to 8.3)
2410
(960 to 2740)
11.18
(4.85 to 12.71)
48
16
10
10
–
3.50
2.10
2.10
–
7.7
(4.0 to 8.5)
2410
(960 to 2790)
11.18
(4.85 to 12.94)
48
13
13
10
–
2.82
2.82
2.06
–
7.7
(4.0 to 8.5)
2410
(960 to 2790)
11.18
(4.85 to 12.94)
48
16
13
10
–
3.22
2.65
1.93
–
7.8
(4.1 to 8.6)
2430
(970 to 2810)
11.27
(4.90 to 13.03)
48
13
13
13
–
2.60
2.60
2.60
–
7.8
(4.1 to 8.6)
2430
(970 to 2810)
11.27
(4.90 to 13.03)
48
16
16
10
–
3.04
3.04
1.82
–
7.9
(4.1 to 8.7)
2440
(970 to 2830)
11.32
(4.90 to 13.13)
48
16
13
13
–
2.99
2.46
2.46
–
7.9
(4.1 to 8.7)
2440
(970 to 2830)
11.32
(4.90 to 13.13)
48
16
16
13
–
2.80
2.80
2.30
–
7.9
(4.2 to 8.9)
2440
(970 to 2880)
11.32
(4.90 to 13.36)
48
16
16
16
–
2.67
2.67
2.67
–
8.0
(4.3 to 9.0)
2450
(980 to 2900)
11.36
(4.95 to 13.45)
48
10
10
10
10
1.98
1.98
1.98
1.98
7.9
(4.0 to 8.7)
2450
(930 to 2800)
11.36
(4.70 to 12.99)
48
13
10
10
10
2.48
1.81
1.81
1.81
7.9
(4.1 to 8.8)
2450
(940 to 2820)
11.36
(4.75 to 13.08)
48
16
10
10
10
2.86
1.71
1.71
1.71
8.0
(4.1 to 9.0)
2500
(940 to 2860)
11.60
(4.75 to 13.27)
48
13
13
10
10
2.31
2.31
1.69
1.69
8.0
(4.1 to 9.0)
2500
(940 to 2860)
11.60
(4.75 to 13.27)
48
16
13
10
10
2.65
2.18
1.59
1.59
8.0
(4.2 to 9.1)
2500
(950 to 2880)
11.60
(4.80 to 13.36)
48
13
13
13
10
2.14
2.14
2.14
1.57
8.0
(4.2 to 9.1)
2500
(950 to 2880)
11.60
(4.80 to 13.36)
48
16
13
13
10
2.47
2.03
2.03
1.48
8.0
(4.2 to 9.2)
2500
(950 to 2900)
11.60
(4.80 to 13.45)
48
13
13
13
13
2.00
2.00
2.00
2.00
8.0
(4.2 to 9.2)
2500
(950 to 2900)
11.60
(4.80 to 13.45)
48
16
16
10
10
2.50
2.50
1.50
1.50
8.0
(4.2 to 9.2)
2500
(950 to 2900)
11.60
(4.80 to 13.45)
48
Power
supply
(V)
Operating
status
A
B
C
D
A
B
C
220
1 unit
10
–
–
–
2.7
–
13
–
–
–
3.7
16
–
–
–
10
10
–
13
10
16
2 units
3 units
4 units
Indoor unit
Unit capacity (kW)
• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/
WB=35/–°C.
• Indoor unit 10 : RAS-M10UKCV-E3, 13 : RAS-M13UKCV-E3, 16 : RAS-M16UKCV-E3
– 11 –
Outdoor Unit : RAS-4M27YACV-E
<Cooling/230V>
D
Cooling
capacity
(kW)
Power
consumption
(W)
Operating
current
(A)
Outdoor
noise
(dB)
–
–
2.7
(1.4 to 3.2)
750
(640 to 950)
3.71
(3.52 to 4.44)
48
–
–
–
3.7
(1.4 to 4.4)
1200
(640 to 1520)
5.49
(3.52 to 6.88)
48
4.5
–
–
–
4.5
(1.4 to 5.0)
1650
(640 to 2000)
7.47
(3.52 to 8.87)
48
–
2.70
2.70
–
–
5.4
(2.5 to 6.3)
1530
(640 to 2040)
6.79
(3.48 to 9.05)
48
–
–
3.41
2.49
–
–
5.9
(2.7 to 6.6)
1810
(660 to 2220)
8.03
(3.59 to 9.85)
48
10
–
–
3.94
2.36
–
–
6.3
(2.9 to 6.9)
2040
(670 to 2400)
9.05
(3.64 to 10.65)
48
13
13
–
–
3.15
3.15
–
–
6.3
(2.9 to 6.9)
2040
(670 to 2400)
9.05
(3.64 to 10.65)
48
16
13
–
–
3.73
3.07
–
–
6.8
(3.0 to 7.2)
2320
(690 to 2570)
10.29
(3.75 to 11.40)
48
16
16
–
–
3.60
3.60
–
–
7.2
(3.2 to 7.5)
2550
(700 to 2750)
11.31
(3.80 to 12.20)
48
10
10
10
–
2.53
2.53
2.53
–
7.6
(3.8 to 8.2)
2400
(950 to 2720)
10.65
(4.59 to 12.07)
48
13
10
10
–
3.13
2.28
2.28
–
7.7
(3.9 to 8.3)
2410
(960 to 2740)
10.69
(4.64 to 12.16)
48
16
10
10
–
3.50
2.10
2.10
–
7.7
(4.0 to 8.5)
2410
(960 to 2790)
10.69
(4.64 to 12.38)
48
13
13
10
–
2.82
2.82
2.06
–
7.7
(4.0 to 8.5)
2410
(960 to 2790)
10.69
(4.64 to 12.38)
48
16
13
10
–
3.22
2.65
1.93
–
7.8
(4.1 to 8.6)
2430
(970 to 2810)
10.78
(4.69 to 12.47)
48
13
13
13
–
2.60
2.60
2.60
–
7.8
(4.1 to 8.6)
2430
(970 to 2810)
10.78
(4.69 to 12.47)
48
16
16
10
–
3.04
3.04
1.82
–
7.9
(4.1 to 8.7)
2440
(970 to 2830)
10.83
(4.69 to 12.56)
48
16
13
13
–
2.99
2.46
2.46
–
7.9
(4.1 to 8.7)
2440
(970 to 2830)
10.83
(4.69 to 12.56)
48
16
16
13
–
2.80
2.80
2.30
–
7.9
(4.2 to 8.9)
2440
(970 to 2880)
10.83
(4.69 to 12.78)
48
16
16
16
–
2.67
2.67
2.67
–
8.0
(4.3 to 9.0)
2450
(980 to 2900)
10.87
(4.73 to 12.87)
48
10
10
10
10
1.98
1.98
1.98
1.98
7.9
(4.0 to 8.7)
2450
(930 to 2800)
10.87
(4.49 to 12.42)
48
13
10
10
10
2.48
1.81
1.81
1.81
7.9
(4.1 to 8.8)
2450
(940 to 2820)
10.87
(4.54 to 12.51)
48
16
10
10
10
2.86
1.71
1.71
1.71
8.0
(4.1 to 9.0)
2500
(940 to 2860)
11.09
(4.54 to 12.69)
48
13
13
10
10
2.31
2.31
1.69
1.69
8.0
(4.1 to 9.0)
2500
(940 to 2860)
11.09
(4.54 to 12.69)
48
16
13
10
10
2.65
2.18
1.59
1.59
8.0
(4.2 to 9.1)
2500
(950 to 2880)
11.09
(4.59 to 12.78)
48
13
13
13
10
2.14
2.14
2.14
1.57
8.0
(4.2 to 9.1)
2500
(950 to 2880)
11.09
(4.59 to 12.78)
48
16
13
13
10
2.47
2.03
2.03
1.48
8.0
(4.2 to 9.2)
2500
(950 to 2900)
11.09
(4.59 to 12.87)
48
13
13
13
13
2.00
2.00
2.00
2.00
8.0
(4.2 to 9.2)
2500
(950 to 2900)
11.09
(4.59 to 12.87)
48
16
16
10
10
2.50
2.50
1.50
1.50
8.0
(4.2 to 9.2)
2500
(950 to 2900)
11.09
(4.59 to 12.87)
48
Power
supply
(V)
Operating
status
A
B
C
D
A
B
C
230
1 unit
10
–
–
–
2.7
–
13
–
–
–
3.7
16
–
–
–
10
10
–
13
10
16
2 units
3 units
4 units
Indoor unit
Unit capacity (kW)
• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/
WB=35/–°C.
• Indoor unit 10 : RAS-M10UKCV-E3, 13 : RAS-M13UKCV-E3, 16 : RAS-M16UKCV-E3
– 12 –
Outdoor Unit : RAS-4M27YACV-E
<Cooling/240V>
D
Cooling
capacity
(kW)
Power
consumption
(W)
Operating
current
(A)
Outdoor
noise
(dB)
–
–
2.7
(1.4 to 3.2)
750
(640 to 950)
3.55
(3.38 to 4.26)
48
–
–
–
3.7
(1.4 to 4.4)
1200
(640 to 1520)
5.26
(3.38 to 6.60)
48
4.5
–
–
–
4.5
(1.4 to 5.0)
1650
(640 to 2000)
7.16
(3.38 to 8.50)
48
–
2.70
2.70
–
–
5.4
(2.5 to 6.3)
1530
(640 to 2040)
6.51
(3.33 to 8.67)
48
–
–
3.41
2.49
–
–
5.9
(2.7 to 6.6)
1810
(660 to 2220)
7.70
(3.44 to 9.44)
48
10
–
–
3.94
2.36
–
–
6.3
(2.9 to 6.9)
2040
(670 to 2400)
8.67
(3.49 to 10.20)
48
13
13
–
–
3.15
3.15
–
–
6.3
(2.9 to 6.9)
2040
(670 to 2400)
8.67
(3.49 to 10.20)
48
16
13
–
–
3.73
3.07
–
–
6.8
(3.0 to 7.2)
2320
(690 to 2570)
9.86
(3.59 to 10.93)
48
16
16
–
–
3.60
3.60
–
–
7.2
(3.2 to 7.5)
2550
(700 to 2750)
10.84
(3.65 to 11.69)
48
10
10
10
–
2.53
2.53
2.53
–
7.6
(3.8 to 8.2)
2400
(950 to 2720)
10.20
(4.40 to 11.56)
48
13
10
10
–
3.13
2.28
2.28
–
7.7
(3.9 to 8.3)
2410
(960 to 2740)
10.25
(4.44 to 11.65)
48
16
10
10
–
3.50
2.10
2.10
–
7.7
(4.0 to 8.5)
2410
(960 to 2790)
10.25
(4.44 to 11.86)
48
13
13
10
–
2.82
2.82
2.06
–
7.7
(4.0 to 8.5)
2410
(960 to 2790)
10.25
(4.44 to 11.86)
48
16
13
10
–
3.22
2.65
1.93
–
7.8
(4.1 to 8.6)
2430
(970 to 2810)
10.33
(4.49 to 11.95)
48
13
13
13
–
2.60
2.60
2.60
–
7.8
(4.1 to 8.6)
2430
(970 to 2810)
10.33
(4.49 to 11.95)
48
16
16
10
–
3.04
3.04
1.82
–
7.9
(4.1 to 8.7)
2440
(970 to 2830)
10.37
(4.49 to 12.03)
48
16
13
13
–
2.99
2.46
2.46
–
7.9
(4.1 to 8.7)
2440
(970 to 2830)
10.37
(4.49 to 12.03)
48
16
16
13
–
2.80
2.80
2.30
–
7.9
(4.2 to 8.9)
2440
(970 to 2880)
10.37
(4.49 to 12.24)
48
16
16
16
–
2.67
2.67
2.67
–
8.0
(4.3 to 9.0)
2450
(980 to 2900)
10.42
(4.54 to 12.33)
48
10
10
10
10
1.98
1.98
1.98
1.98
7.9
(4.0 to 8.7)
2450
(930 to 2800)
10.42
(4.31 to 11.90)
48
13
10
10
10
2.48
1.81
1.81
1.81
7.9
(4.1 to 8.8)
2450
(940 to 2820)
10.42
(4.35 to 11.99)
48
16
10
10
10
2.86
1.71
1.71
1.71
8.0
(4.1 to 9.0)
2500
(940 to 2860)
10.63
(4.35 to 12.16)
48
13
13
10
10
2.31
2.31
1.69
1.69
8.0
(4.1 to 9.0)
2500
(940 to 2860)
10.63
(4.35 to 12.16)
48
16
13
10
10
2.65
2.18
1.59
1.59
8.0
(4.2 to 9.1)
2500
(950 to 2880)
10.63
(4.40 to 12.24)
48
13
13
13
10
2.14
2.14
2.14
1.57
8.0
(4.2 to 9.1)
2500
(950 to 2880)
10.63
(4.40 to 12.24)
48
16
13
13
10
2.47
2.03
2.03
1.48
8.0
(4.2 to 9.2)
2500
(950 to 2900)
10.63
(4.40 to 12.33)
48
13
13
13
13
2.00
2.00
2.00
2.00
8.0
(4.2 to 9.2)
2500
(950 to 2900)
10.63
(4.40 to 12.33)
48
16
16
10
10
2.50
2.50
1.50
1.50
8.0
(4.2 to 9.2)
2500
(950 to 2900)
10.63
(4.40 to 12.33)
48
Power
supply
(V)
Operating
status
A
B
C
D
A
B
C
240
1 unit
10
–
–
–
2.7
–
13
–
–
–
3.7
16
–
–
–
10
10
–
13
10
16
2 units
3 units
4 units
Indoor unit
Unit capacity (kW)
• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/
WB=35/–°C.
• Indoor unit 10 : RAS-M10UKCV-E3, 13 : RAS-M13UKCV-E3, 16 : RAS-M16UKCV-E3
– 13 –
Outdoor Unit : RAS-3M26YAV-E
<Cooling/220V>
C
Cooling
capacity
(kW)
Power
consumption
(W)
Operating
current
(A)
Outdoor
noise
(dB)
–
–
2.7
(1.4 to 3.2)
750
(640 to 950)
3.87
(3.68 to 4.64)
48
3.7
–
–
3.7
(1.4 to 4.4)
1200
(640 to 1520)
5.74
(3.68 to 7.20)
48
–
4.5
–
–
4.5
(1.4 to 5.0)
1650
(640 to 2000)
7.81
(3.68 to 9.28)
48
10
–
2.70
2.70
–
5.4
(2.5 to 6.3)
1530
(640 to 2040)
7.10
(3.64 to 9.46)
48
13
10
–
3.41
2.49
–
5.9
(2.7 to 6.6)
1810
(660 to 2220)
8.40
(3.75 to 10.30)
48
16
10
–
3.94
2.36
–
6.3
(2.9 to 6.9)
2040
(670 to 2400)
9.46
(3.81 to 11.13)
48
13
13
–
3.15
3.15
–
6.3
(2.9 to 6.9)
2040
(670 to 2400)
9.46
(3.81 to 11.13)
48
16
13
–
3.73
3.07
–
6.8
(3.0 to 7.2)
2320
(690 to 2570)
10.76
(3.92 to 11.92)
48
16
16
–
3.60
3.60
–
7.2
(3.2 to 7.5)
2550
(700 to 2750)
11.83
(3.98 to 12.76)
48
10
10
10
2.47
2.47
2.47
7.4
(3.8 to 8.2)
2230
(950 to 2720)
10.34
(4.80 to 12.62)
48
13
10
10
3.01
2.20
2.20
7.4
(3.9 to 8.3)
2230
(950 to 2750)
10.34
(4.80 to 12.76)
48
16
10
10
3.36
2.02
2.02
7.4
(4.0 to 8.5)
2230
(950 to 2820)
10.34
(4.80 to 13.08)
48
13
13
10
2.71
2.71
1.98
7.4
(4.0 to 8.5)
2230
(950 to 2820)
10.34
(4.80 to 13.08)
48
16
13
10
3.10
2.55
1.86
7.5
(4.0 to 8.6)
2250
(980 to 2850)
10.44
(4.95 to 13.22)
48
13
13
13
2.50
2.50
2.50
7.5
(4.0 to 8.6)
2250
(980 to 2850)
10.44
(4.95 to 13.22)
48
16
16
10
2.88
2.88
1.73
7.5
(4.1 to 8.8)
2250
(980 to 2920)
10.44
(4.95 to 13.54)
48
16
13
13
2.84
2.33
2.33
7.5
(4.1 to 8.8)
2250
(980 to 2920)
10.44
(4.95 to 13.54)
48
16
16
13
2.66
2.66
2.19
7.5
(4.2 to 8.9)
2250
(980 to 2950)
10.44
(4.95 to 13.68)
48
Power
supply
(V)
Operating
status
A
B
C
A
B
220
1 unit
10
–
–
2.7
13
–
–
16
–
10
2 units
3 units
Indoor unit
Unit capacity (kW)
• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/
WB=35/–°C.
• Indoor unit 10 : RAS-M10UKV-E3, 13 : RAS-M13UKV-E3, 16 : RAS-M16UKV-E3
– 14 –
Outdoor Unit : RAS-3M26YAV-E
<Cooling/230V>
C
Cooling
capacity
(kW)
Power
consumption
(W)
Operating
current
(A)
Outdoor
noise
(dB)
–
–
2.7
(1.4 to 3.2)
750
(640 to 950)
3.71
(3.52 to 4.44)
48
3.7
–
–
3.7
(1.4 to 4.4)
1200
(640 to 1520)
5.49
(3.52 to 6.88)
48
–
4.5
–
–
4.5
(1.4 to 5.0)
1650
(640 to 2000)
7.47
(3.52 to 8.87)
48
10
–
2.70
2.70
–
5.4
(2.5 to 6.3)
1530
(640 to 2040)
6.79
(3.48 to 9.05)
48
13
10
–
3.41
2.49
–
5.9
(2.7 to 6.6)
1810
(660 to 2220)
8.03
(3.59 to 9.85)
48
16
10
–
3.94
2.36
–
6.3
(2.9 to 6.9)
2040
(670 to 2400)
9.05
(3.64 to 10.65)
48
13
13
–
3.15
3.15
–
6.3
(2.9 to 6.9)
2040
(670 to 2400)
9.05
(3.64 to 10.65)
48
16
13
–
3.73
3.07
–
6.8
(3.0 to 7.2)
2320
(690 to 2570)
10.29
(3.75 to 11.40)
48
16
16
–
3.60
3.60
–
7.2
(3.2 to 7.5)
2550
(700 to 2750)
11.31
(3.80 to 12.20)
48
10
10
10
2.47
2.47
2.47
7.4
(3.8 to 8.2)
2230
(950 to 2720)
9.89
(4.59 to 12.07)
48
13
10
10
3.01
2.20
2.20
7.4
(3.9 to 8.3)
2230
(950 to 2750)
9.89
(4.59 to 12.20)
48
16
10
10
3.36
2.02
2.02
7.4
(4.0 to 8.5)
2230
(950 to 2820)
9.89
(4.59 to 12.51)
48
13
13
10
2.71
2.71
1.98
7.4
(4.0 to 8.5)
2230
(950 to 2820)
9.89
(4.59 to 12.51)
48
16
13
10
3.10
2.55
1.86
7.5
(4.0 to 8.6)
2250
(980 to 2850)
9.98
(4.73 to 12.64)
48
13
13
13
2.50
2.50
2.50
7.5
(4.0 to 8.6)
2250
(980 to 2850)
9.98
(4.73 to 12.64)
48
16
16
10
2.88
2.88
1.73
7.5
(4.1 to 8.8)
2250
(980 to 2920)
9.98
(4.73 to 12.95)
48
16
13
13
2.84
2.33
2.33
7.5
(4.1 to 8.8)
2250
(980 to 2920)
9.98
(4.73 to 12.95)
48
16
16
13
2.66
2.66
2.19
7.5
(4.2 to 8.9)
2250
(980 to 2950)
9.98
(4.73 to 13.09)
48
Power
supply
(V)
Operating
status
A
B
C
A
B
230
1 unit
10
–
–
2.7
13
–
–
16
–
10
2 units
3 units
Indoor unit
Unit capacity (kW)
• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/
WB=35/–°C.
• Indoor unit 10 : RAS-M10UKV-E3, 13 : RAS-M13UKV-E3, 16 : RAS-M16UKV-E3
– 15 –
Outdoor Unit : RAS-3M26YAV-E
<Cooling/240V>
C
Cooling
capacity
(kW)
Power
consumption
(W)
Operating
current
(A)
Outdoor
noise
(dB)
–
–
2.7
(1.4 to 3.2)
750
(640 to 950)
3.55
(338 to 4.26)
48
3.7
–
–
3.7
(1.4 to 4.4)
1200
(640 to 1520)
5.26
(3.38 to 6.60)
48
–
4.5
–
–
4.5
(1.4 to 5.0)
1650
(640 to 2000)
7.16
(3.38 to 8.50)
48
10
–
2.70
2.70
–
5.4
(2.5 to 6.3)
1530
(640 to 2040)
6.51
(3.33 to 8.67)
48
13
10
–
3.41
2.49
–
5.9
(2.7 to 6.6)
1810
(660 to 2220)
7.70
(3.44 to 9.44)
48
16
10
–
3.94
2.36
–
6.3
(2.9 to 6.9)
2040
(670 to 2400)
8.67
(3.49 to 10.20)
48
13
13
–
3.15
3.15
–
6.3
(2.9 to 6.9)
2040
(670 to 2400)
8.67
(3.49 to 10.20)
48
16
13
–
3.73
3.07
–
6.8
(3.0 to 7.2)
2320
(690 to 2570)
9.86
(3.59 to 10.93)
48
16
16
–
3.60
3.60
–
7.2
(3.2 to 7.5)
2550
(700 to 2750)
10.84
(3.65 to 11.69)
48
10
10
10
2.47
2.47
2.47
7.4
(3.8 to 8.2)
2230
(950 to 2720)
9.48
(4.40 to 11.56)
48
13
10
10
3.01
2.20
2.20
7.4
(3.9 to 8.3)
2230
(950 to 2750)
9.48
(4.40 to 11.69)
48
16
10
10
3.36
2.02
2.02
7.4
(4.0 to 8.5)
2230
(950 to 2820)
9.48
(4.40 to 11.99)
48
13
13
10
2.71
2.71
1.98
7.4
(4.0 to 8.5)
2230
(950 to 2820)
9.48
(4.40 to 11.99)
48
16
13
10
3.10
2.55
1.86
7.5
(4.0 to 8.6)
2250
(980 to 2850)
9.57
(4.54 to 12.12)
48
13
13
13
2.50
2.50
2.50
7.5
(4.0 to 8.6)
2250
(980 to 2850)
9.57
(4.54 to 12.12)
48
16
16
10
2.88
2.88
1.73
7.5
(4.1 to 8.8)
2250
(980 to 2920)
9.57
(4.54 to 12.41)
48
16
13
13
2.84
2.33
2.33
7.5
(4.1 to 8.8)
2250
(980 to 2920)
9.57
(4.54 to 12.41)
48
16
16
13
2.66
2.66
2.19
7.5
(4.2 to 8.9)
2250
(980 to 2950)
9.57
(4.54 to 12.54)
48
Power
supply
(V)
Operating
status
A
B
C
A
B
240
1 unit
10
–
–
2.7
13
–
–
16
–
10
2 units
3 units
Indoor unit
Unit capacity (kW)
• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/
WB=35/–°C.
• Indoor unit 10 : RAS-M10UKV-E3, 13 : RAS-M13UKV-E3, 16 : RAS-M16UKV-E3
– 16 –
Outdoor Unit : RAS-3M26YAV-E
<Heating/220V>
C
Heating
capacity
(kW)
Power
consumption
(W)
Operating
current
(A)
Outdoor
noise
(dB)
–
–
4.0
(0.8 to 5.2)
1500
(300 to 1980)
6.96
(1.87 to 9.18)
48
5.0
–
–
5.0
(0.8 to 6.5)
2050
(310 to 2750)
9.51
(1.93 to 12.76)
48
–
5.5
–
–
5.5
(0.8 to 6.9)
2400
(310 to 3000)
11.13
(1.93 to 13.91)
48
10
–
3.60
3.60
–
7.2
(1.5 to 10.0)
2050
(320 to 3200)
9.51
(1.94 to 14.84)
48
13
10
–
4.22
3.38
–
7.6
(1.5 to 10.1)
2240
(320 to 3210)
10.39
(1.94 to 14.89)
48
16
10
–
4.57
3.33
–
7.9
(1.5 to 10.1)
2380
(320 to 3230)
11.04
(1.94 to 14.98)
48
13
13
–
3.95
3.95
–
7.9
(1.5 to 10.1)
2380
(320 to 3230)
11.04
(1.94 to 14.98)
48
16
13
–
4.35
3.95
–
8.3
(1.5 to 10.2)
2560
(320 to 3240)
11.87
(1.94 to 15.03)
48
16
16
–
4.30
4.30
–
8.6
(1.5 to 10.2)
2700
(320 to 3250)
12.52
(1.94 to 15.07)
48
10
10
10
2.87
2.87
2.87
8.6
(2.0 to 10.4)
2300
(380 to 2750)
10.67
(2.16 to 12.76)
48
13
10
10
3.35
2.68
2.68
8.7
(2.0 to 10.5)
2360
(380 to 2760)
10.95
(2.16 to 12.80)
48
16
10
10
3.59
2.61
2.61
8.8
(2.0 to 10.6)
2430
(380 to 2780)
11.27
(2.16 to 12.89)
48
13
13
10
3.14
3.14
2.51
8.8
(2.0 to 10.6)
2430
(380 to 2780)
11.27
(2.16 to 12.89)
48
16
13
10
3.34
3.03
2.43
8.8
(2.0 to 10.6)
2430
(380 to 2780)
11.27
(2.16 to 12.89)
48
13
13
13
2.93
2.93
2.93
8.8
(2.0 to 10.6)
2430
(380 to 2780)
11.27
(2.16 to 12.89)
48
16
16
10
3.26
3.26
2.37
8.9
(2.0 to 10.7)
2490
(380 to 2790)
11.55
(2.16 to 12.94)
48
16
13
13
3.16
2.87
2.87
8.9
(2.0 to 10.7)
2490
(380 to 2790)
11.55
(2.16 to 12.94)
48
16
16
13
3.09
3.09
2.81
9.0
(2.0 to 10.8)
2550
(380 to 2800)
11.83
(2.16 to 12.99)
48
Power
supply
(V)
Operating
status
A
B
C
A
B
220
1 unit
10
–
–
4.0
13
–
–
16
–
10
2 units
3 units
Indoor unit
Unit capacity (kW)
• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/
WB=35/–°C.
• Indoor unit 10 : RAS-M10UKV-E3, 13 : RAS-M13UKV-E3, 16 : RAS-M16UKV-E3
– 17 –
Outdoor Unit : RAS-3M26YAV-E
<Heating/230V>
C
Heating
capacity
(kW)
Power
consumption
(W)
Operating
current
(A)
Outdoor
noise
(dB)
–
–
4.0
(0.8 to 5.2)
1500
(300 to 1980)
6.65
(1.79 to 8.78)
48
5.0
–
–
5.0
(0.8 to 6.5)
2050
(310 to 2750)
9.09
(1.85 to 12.20)
48
–
5.5
–
–
5.5
(0.8 to 6.9)
2400
(310 to 3000)
10.65
(1.85 to 13.31)
48
10
–
3.60
3.60
–
7.2
(1.5 to 10.0)
2050
(320 to 3200)
9.09
(1.86 to 14.20)
48
13
10
–
4.22
3.38
–
7.6
(1.5 to 10.1)
2240
(320 to 3210)
9.94
(1.86 to 14.24)
48
16
10
–
4.57
3.33
–
7.9
(1.5 to 10.1)
2380
(320 to 3230)
10.56
(1.86 to 14.33)
48
13
13
–
3.95
3.95
–
7.9
(1.5 to 10.1)
2380
(320 to 3230)
10.56
(1.86 to 14.33)
48
16
13
–
4.35
3.95
–
8.3
(1.5 to 10.2)
2560
(320 to 3240)
11.36
(1.86 to 14.37)
48
16
16
–
4.30
4.30
–
8.6
(1.5 to 10.2)
2700
(320 to 3250)
11.98
(1.86 to 14.42)
48
10
10
10
2.87
2.87
2.87
8.6
(2.0 to 10.4)
2300
(380 to 2750)
10.20
(2.07 to 12.20)
48
13
10
10
3.35
2.68
2.68
8.7
(2.0 to 10.5)
2360
(380 to 2760)
10.47
(2.07 to 12.24)
48
16
10
10
3.59
2.61
2.61
8.8
(2.0 to 10.6)
2430
(380 to 2780)
10.78
(2.07 to 12.33)
48
13
13
10
3.14
3.14
2.51
8.8
(2.0 to 10.6)
2430
(380 to 2780)
10.78
(2.07 to 12.33)
48
16
13
10
3.34
3.03
2.43
8.8
(2.0 to 10.6)
2430
(380 to 2780)
10.78
(2.07 to 12.33)
48
13
13
13
2.93
2.93
2.93
8.8
(2.0 to 10.6)
2430
(380 to 2780)
10.78
(2.07 to 12.33)
48
16
16
10
3.26
3.26
2.37
8.9
(2.0 to 10.7)
2490
(380 to 2790)
11.05
(2.07 to 12.38)
48
16
13
13
3.16
2.87
2.87
8.9
(2.0 to 10.7)
2490
(380 to 2790)
11.05
(2.07 to 12.38)
48
16
16
13
3.09
3.09
2.81
9.0
(2.0 to 10.8)
2550
(380 to 2800)
11.31
(2.07 to 12.42)
48
Power
supply
(V)
Operating
status
A
B
C
A
B
230
1 unit
10
–
–
4.0
13
–
–
16
–
10
2 units
3 units
Indoor unit
Unit capacity (kW)
• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/
WB=35/–°C.
• Indoor unit 10 : RAS-M10UKV-E3, 13 : RAS-M13UKV-E3, 16 : RAS-M16UKV-E3
– 18 –
Outdoor Unit : RAS-3M26YAV-E
<Heating/240V>
C
Heating
capacity
(kW)
Power
consumption
(W)
Operating
current
(A)
Outdoor
noise
(dB)
–
–
4.0
(0.8 to 5.2)
1500
(300 to 1980)
6.38
(1.71 to 8.42)
48
5.0
–
–
5.0
(0.8 to 6.5)
2050
(310 to 2750)
8.72
(1.77 to 11.69)
48
–
5.5
–
–
5.5
(0.8 to 6.9)
2400
(310 to 3000)
10.20
(1.77 to 12.76)
48
10
–
3.60
3.60
–
7.2
(1.5 to 10.0)
2050
(320 to 3200)
8.72
(1.78 to 13.61)
48
13
10
–
4.22
3.38
–
7.6
(1.5 to 10.1)
2240
(320 to 3210)
9.52
(1.78 to 13.65)
48
16
10
–
4.57
3.33
–
7.9
(1.5 to 10.1)
2380
(320 to 3230)
10.12
(1.78 to 13.73)
48
13
13
–
3.95
3.95
–
7.9
(1.5 to 10.1)
2380
(320 to 3230)
10.12
(1.78 to 13.73)
48
16
13
–
4.35
3.95
–
8.3
(1.5 to 10.2)
2560
(320 to 3240)
10.88
(1.78 to 13.78)
48
16
16
–
4.30
4.30
–
8.6
(1.5 to 10.2)
2700
(320 to 3250)
11.48
(1.78 to 13.82)
48
10
10
10
2.87
2.87
2.87
8.6
(2.0 to 10.4)
2300
(380 to 2750)
9.78
(1.98 to 11.69)
48
13
10
10
3.35
2.68
2.68
8.7
(2.0 to 10.5)
2360
(380 to 2760)
10.03
(1.98 to 11.73)
48
16
10
10
3.59
2.61
2.61
8.8
(2.0 to 10.6)
2430
(380 to 2780)
10.33
(1.98 to 11.82)
48
13
13
10
3.14
3.14
2.51
8.8
(2.0 to 10.6)
2430
(380 to 2780)
10.33
(1.98 to 11.82)
48
16
13
10
3.34
3.03
2.43
8.8
(2.0 to 10.6)
2430
(380 to 2780)
10.33
(1.98 to 11.82)
48
13
13
13
2.93
2.93
2.93
8.8
(2.0 to 10.6)
2430
(380 to 2780)
10.33
(1.98 to 11.82)
48
16
16
10
3.26
3.26
2.37
8.9
(2.0 to 10.7)
2490
(380 to 2790)
10.59
(1.98 to 11.86)
48
16
13
13
3.16
2.87
2.87
8.9
(2.0 to 10.7)
2490
(380 to 2790)
10.59
(1.98 to 11.86)
48
16
16
13
3.09
3.09
2.81
9.0
(2.0 to 10.8)
2550
(380 to 2800)
10.84
(1.98 to 11.90)
48
Power
supply
(V)
Operating
status
A
B
C
A
B
240
1 unit
10
–
–
4.0
13
–
–
16
–
10
2 units
3 units
Indoor unit
Unit capacity (kW)
• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/
WB=35/–°C.
• Indoor unit 10 : RAS-M10UKV-E3, 13 : RAS-M13UKV-E3, 16 : RAS-M16UKV-E3
– 19 –
1-2-1. Operation Characteristic Curve
<Cooling>
<Heating>
14
• Conditions
14 Indoor
: DB27˚C/WB19˚C
Outdoor : DB35˚C
: High
12 Air flow
Pipe length : 5m x 4
10 4 units operating
240V
8
230V
6
220V
240V
6
230V
4
4
2
2
0
0
• Conditions
Indoor
: DB20˚C
Outdoor : DB7˚C / WB6˚C
Air flow
: High
10 Pipe length: 5m x 4
4 units operating
8
12
220V
Current (A)
Current (A)
16
10
20
30
40
50
60
70
0
0
80
10
Inverter output frequency (rps)
20
30
40
50
60
70
80
90
100
Inverter output frequency (rps)
1-2-2. Capacity Variation Ratio According to Outdoor Temperature
110
Current limited start
100
Heating capacity ratio (%)
Cooling capacity ratio (%)
110
90
80
70 • Conditions
Indoor
: DB27˚C/WB19˚C
Indoor air flow : High
60 Pipe length
: 5m x 4
4 units operating
50
32 33 34 35 36 37 38 39 40 41 42
• Conditions
Indoor
: DB20˚C
Air flow
: High
Pipe length
: 5m x 4
90 4 units operating
100
80
70
60
50
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10
43 44
Outdoor temp. (˚C)
Outdoor temp. (˚C)
1-2-3. Capacity Variation Ratio According to Pipe Length
110
105
Heating capacity ratio (%)
Coolimg capacity ratio (%)
110
Standard pipe length 20m
100
95
90
85
80
0
• Conditions
Indoor
: DB27˚C/WB19˚C
Outdoor
: DB35˚C
Indoor air flow : High
4 units operating
10
20
30
40
50
60
70
80
Total pipe length (m)
105
Standard pipe length 20m
100
95
90
85
80
0
• Conditions
Indoor
: DB20˚C
Outdoor
: DB7˚C/WB6˚C
Indoor air flow : High
4 units operating
10
20
30
40
50
Total pipe length (m)
– 20 –
60
70
80
1-3. Electrical Data
Outdoor Unit : RAS-4M27YAV-E
<Cooling>
System
Combination of
indoor unit operation
1 unit
2 units
3 units
Hz
Voltage range
Power supply
Min.
MCA
ICF
Max.
Fan motor FLA
MOCP
(Amps)
MSC
RLA
Indoor
Outdoor
10
–
–
–
4.48
4.48
20
3.06
3.06
0.15 x 1 = 0.15
0.5
13
–
–
–
6.70
6.70
20
4.84
4.84
0.15 x 1 = 0.15
0.5
16
–
–
–
9.18
9.18
20
6.82
6.82
0.15 x 1 = 0.15
0.5
10
10
–
–
8.29
8.29
20
5.99
5.99
0.15 x 2 = 0.30
0.5
13
10
–
–
9.84
9.84
20
7.23
7.23
0.15 x 2 = 0.30
0.5
16
10
–
–
11.11
11.11
20
8.25
8.25
0.15 x 2 = 0.30
0.5
13
13
–
–
11.11
11.11
20
8.25
8.25
0.15 x 2 = 0.30
0.5
16
13
–
–
12.66
12.66
20
9.49
9.49
0.15 x 2 = 0.30
0.5
16
16
–
–
13.94
13.94
20
10.51
10.51
0.15 x 2 = 0.30
0.5
10
10
10
–
13.08
13.08
20
9.70
9.70
0.15 x 3 = 0.45
0.5
13
10
10
–
13.13
13.13
20
9.74
9.74
0.15 x 3 = 0.45
0.5
16
10
10
–
13.13
13.13
20
9.74
9.74
0.15 x 3 = 0.45
0.5
13
13
10
–
13.13
13.13
20
9.74
9.74
0.15 x 3 = 0.45
0.5
16
13
10
–
13.24
13.24
20
9.83
9.83
0.15 x 3 = 0.45
0.5
50 or 60
4 units
VoltsPh.
Compressor
230–1
198
264
13
13
13
–
13.24
13.24
20
9.83
9.83
0.15 x 3 = 0.45
0.5
16
16
10
–
13.30
13.30
20
9.88
9.88
0.15 x 3 = 0.45
0.5
16
13
13
–
13.30
13.30
20
9.88
9.88
0.15 x 3 = 0.45
0.5
16
16
13
–
13.30
13.30
20
9.88
9.88
0.15 x 3 = 0.45
0.5
16
16
16
–
13.35
13.35
20
9.92
9.92
0.15 x 3 = 0.45
0.5
10
10
10
10
13.31
13.31
20
9.77
9.77
0.15 x 4 = 0.60
0.5
13
10
10
10
13.31
13.31
20
9.77
9.77
0.15 x 4 = 0.60
0.5
16
10
10
10
13.59
13.59
20
9.99
9.99
0.15 x 4 = 0.60
0.5
13
13
10
10
13.59
13.59
20
9.99
9.99
0.15 x 4 = 0.60
0.5
16
13
10
10
13.59
13.59
20
9.99
9.99
0.15 x 4 = 0.60
0.5
13
13
13
10
13.59
13.59
20
9.99
9.99
0.15 x 4 = 0.60
0.5
16
13
13
10
13.59
13.59
20
9.99
9.99
0.15 x 4 = 0.60
0.5
13
13
13
13
13.59
13.59
20
9.99
9.99
0.15 x 4 = 0.60
0.5
16
16
10
10
13.59
13.59
20
9.99
9.99
0.15 x 4 = 0.60
0.5
NOTE :
Model of Indoor unit 10 : RAS-M10UKV-E3, 13 : RAS-M13UKV-E3, 16 : RAS-M16UKV-E3
MCA : Minimum Circuit Amps.
ICF
: Maximum Instantaneous Current Flow (Equivalent to MCA in case of inverter air conditioner)
MOCP : Maximum Overcurrent Protection (Fuse only)
MSC : Maximum Starting Current
Indoor temp. (°C)
FLA : Full Load Amps.
Outdoor temp. (°C)
RLA : Rated Load Amps. RLA under conditions on the right.
– 21 –
DB
27
35
WB
19
—
Outdoor Unit : RAS-4M27YAV-E
<Heating>
System
Combination of
indoor unit operation
1 unit
2 units
3 units
Hz
Voltage range
Power supply
Min.
MCA
ICF
Max.
Fan motor FLA
MOCP
(Amps)
MSC
RLA
Indoor
Outdoor
10
–
–
–
7.88
7.88
20
5.78
5.78
0.15 x 1 = 0.15
0.5
13
–
–
–
11.20
11.20
20
8.44
8.44
0.15 x 1 = 0.15
0.5
16
–
–
–
13.15
13.15
20
10.00
10.00
0.15 x 1 = 0.15
0.5
10
10
–
–
11.45
11.45
20
8.52
8.52
0.15 x 2 = 0.30
0.5
13
10
–
–
12.66
12.66
20
9.49
9.49
0.15 x 2 = 0.30
0.5
16
10
–
–
13.55
13.55
20
10.20
10.20
0.15 x 2 = 0.30
0.5
13
13
–
–
13.55
13.55
20
10.20
10.20
0.15 x 2 = 0.30
0.5
16
13
–
–
14.78
14.78
20
11.18
11.18
0.15 x 2 = 0.30
0.5
16
16
–
–
15.66
15.66
20
11.89
11.89
0.15 x 2 = 0.30
0.5
10
10
10
–
12.51
12.51
20
9.25
9.25
0.15 x 3 = 0.45
0.5
13
10
10
–
12.80
12.80
20
9.48
9.48
0.15 x 3 = 0.45
0.5
16
10
10
–
12.80
12.80
20
9.48
9.48
0.15 x 3 = 0.45
0.5
13
13
10
–
12.80
12.80
20
9.48
9.48
0.15 x 3 = 0.45
0.5
16
13
10
–
13.08
13.08
20
9.70
9.70
0.15 x 3 = 0.45
0.5
50 or 60
4 units
VoltsPh.
Compressor
230–1
198
264
13
13
13
–
13.08
13.08
20
9.70
9.70
0.15 x 3 = 0.45
0.5
16
16
10
–
13.35
13.35
20
9.92
9.92
0.15 x 3 = 0.45
0.5
16
13
13
–
13.35
13.35
20
9.92
9.92
0.15 x 3 = 0.45
0.5
16
16
13
–
13.35
13.35
20
9.92
9.92
0.15 x 3 = 0.45
0.5
16
16
16
–
13.63
13.63
20
10.14
10.14
0.15 x 3 = 0.45
0.5
10
10
10
10
11.38
11.38
20
8.22
8.22
0.15 x 4 = 0.60
0.5
13
10
10
10
11.38
11.38
20
8.22
8.22
0.15 x 4 = 0.60
0.5
16
10
10
10
12.20
12.20
20
8.88
8.88
0.15 x 4 = 0.60
0.5
13
13
10
10
12.20
12.20
20
8.88
8.88
0.15 x 4 = 0.60
0.5
16
13
10
10
12.20
12.20
20
8.88
8.88
0.15 x 4 = 0.60
0.5
13
13
13
10
12.20
12.20
20
8.88
8.88
0.15 x 4 = 0.60
0.5
16
13
13
10
12.20
12.20
20
8.88
8.88
0.15 x 4 = 0.60
0.5
13
13
13
13
12.20
12.20
20
8.88
8.88
0.15 x 4 = 0.60
0.5
16
16
10
10
12.20
12.20
20
8.88
8.88
0.15 x 4 = 0.60
0.5
NOTE :
Model of Indoor unit 10 : RAS-M10UKV-E3, 13 : RAS-M13UKV-E3, 16 : RAS-M16UKV-E3
MCA : Minimum Circuit Amps.
ICF
: Maximum Instantaneous Current Flow (Equivalent to MCA in case of inverter air conditioner)
MOCP : Maximum Overcurrent Protection (Fuse only)
MSC : Maximum Starting Current
Indoor temp. (°C)
FLA : Full Load Amps.
Outdoor temp. (°C)
RLA : Rated Load Amps. RLA under conditions on the right.
– 22 –
DB
20
7
WB
—
6
Outdoor Unit : RAS-4M27YACV-E
<Cooling>
System
Combination of
indoor unit operation
1 unit
2 units
3 units
Hz
Voltage range
Power supply
Min.
MCA
ICF
Max.
Fan motor FLA
MOCP
(Amps)
MSC
RLA
Indoor
Outdoor
10
–
–
–
4.48
4.48
20
3.06
3.06
0.15 x 1 = 0.15
0.5
13
–
–
–
6.70
6.70
20
4.84
4.84
0.15 x 1 = 0.15
0.5
16
–
–
–
9.18
9.18
20
6.82
6.82
0.15 x 1 = 0.15
0.5
10
10
–
–
8.29
8.29
20
5.99
5.99
0.15 x 2 = 0.30
0.5
13
10
–
–
9.84
9.84
20
7.23
7.23
0.15 x 2 = 0.30
0.5
16
10
–
–
11.11
11.11
20
8.25
8.25
0.15 x 2 = 0.30
0.5
13
13
–
–
11.11
11.11
20
8.25
8.25
0.15 x 2 = 0.30
0.5
16
13
–
–
12.66
12.66
20
9.49
9.49
0.15 x 2 = 0.30
0.5
16
16
–
–
13.94
13.94
20
10.51
10.51
0.15 x 2 = 0.30
0.5
10
10
10
–
13.08
13.08
20
9.70
9.70
0.15 x 3 = 0.45
0.5
13
10
10
–
13.13
13.13
20
9.74
9.74
0.15 x 3 = 0.45
0.5
16
10
10
–
13.13
13.13
20
9.74
9.74
0.15 x 3 = 0.45
0.5
13
13
10
–
13.13
13.13
20
9.74
9.74
0.15 x 3 = 0.45
0.5
16
13
10
–
13.24
13.24
20
9.83
9.83
0.15 x 3 = 0.45
0.5
50 or 60
4 units
VoltsPh.
Compressor
230–1
198
264
13
13
13
–
13.24
13.24
20
9.83
9.83
0.15 x 3 = 0.45
0.5
16
16
10
–
13.30
13.30
20
9.88
9.88
0.15 x 3 = 0.45
0.5
16
13
13
–
13.30
13.30
20
9.88
9.88
0.15 x 3 = 0.45
0.5
16
16
13
–
13.30
13.30
20
9.88
9.88
0.15 x 3 = 0.45
0.5
16
16
16
–
13.35
13.35
20
9.92
9.92
0.15 x 3 = 0.45
0.5
10
10
10
10
13.31
13.31
20
9.77
9.77
0.15 x 4 = 0.60
0.5
13
10
10
10
13.31
13.31
20
9.77
9.77
0.15 x 4 = 0.60
0.5
16
10
10
10
13.59
13.59
20
9.99
9.99
0.15 x 4 = 0.60
0.5
13
13
10
10
13.59
13.59
20
9.99
9.99
0.15 x 4 = 0.60
0.5
16
13
10
10
13.59
13.59
20
9.99
9.99
0.15 x 4 = 0.60
0.5
13
13
13
10
13.59
13.59
20
9.99
9.99
0.15 x 4 = 0.60
0.5
16
13
13
10
13.59
13.59
20
9.99
9.99
0.15 x 4 = 0.60
0.5
13
13
13
13
13.59
13.59
20
9.99
9.99
0.15 x 4 = 0.60
0.5
16
16
10
10
13.59
13.59
20
9.99
9.99
0.15 x 4 = 0.60
0.5
NOTE :
Model of Indoor unit 10 : RAS-M10UKCV-E3, 13 : RAS-M13UKCV-E3, 16 : RAS-M16UKCV-E3
MCA : Minimum Circuit Amps.
ICF
: Maximum Instantaneous Current Flow (Equivalent to MCA in case of inverter air conditioner)
MOCP : Maximum Overcurrent Protection (Fuse only)
MSC : Maximum Starting Current
Indoor temp. (°C)
FLA : Full Load Amps.
Outdoor temp. (°C)
RLA : Rated Load Amps. RLA under conditions on the right.
– 23 –
DB
27
35
WB
19
—
Outdoor Unit : RAS-3M26YAV-E
<Cooling>
System
Combination of
indoor unit operation
1 unit
2 units
Hz
Voltage range
Power supply
Min.
MCA
ICF
Max.
Fan motor FLA
MOCP
(Amps)
MSC
RLA
Indoor
Outdoor
10
–
–
4.48
4.48
20
3.06
3.06
0.15 x 1 = 0.15
0.5
13
–
–
6.70
6.70
20
4.84
4.84
0.15 x 1 = 0.15
0.5
16
–
–
9.18
9.18
20
6.82
6.82
0.15 x 1 = 0.15
0.5
10
10
–
8.29
8.29
20
5.99
5.99
0.15 x 2 = 0.30
0.5
13
10
–
9.84
9.84
20
7.23
7.23
0.15 x 2 = 0.30
0.5
16
10
–
11.11
11.11
20
8.25
8.25
0.15 x 2 = 0.30
0.5
13
13
–
11.11
11.11
20
8.25
8.25
0.15 x 2 = 0.30
0.5
16
13
–
12.66
12.66
20
9.49
9.49
0.15 x 2 = 0.30
0.5
16
16
–
13.94
13.94
20
10.51
10.51
0.15 x 2 = 0.30
0.5
50 or 60
3 units
VoltsPh.
Compressor
230–1
198
264
10
10
10
12.13
12.13
20
8.94
8.94
0.15 x 3 = 0.45
0.5
13
10
10
12.13
12.13
20
8.94
8.94
0.15 x 3 = 0.45
0.5
16
10
10
12.13
12.13
20
8.94
8.94
0.15 x 3 = 0.45
0.5
13
13
10
12.13
12.13
20
8.94
8.94
0.15 x 3 = 0.45
0.5
16
13
10
12.24
12.24
20
9.03
9.03
0.15 x 3 = 0.45
0.5
13
13
13
12.24
12.24
20
9.03
9.03
0.15 x 3 = 0.45
0.5
16
16
10
12.24
12.24
20
9.03
9.03
0.15 x 3 = 0.45
0.5
16
13
13
12.24
12.24
20
9.03
9.03
0.15 x 3 = 0.45
0.5
16
16
13
12.24
12.24
20
9.03
9.03
0.15 x 3 = 0.45
0.5
NOTE :
Model of Indoor unit 10 : RAS-M10UKV-E3, 13 : RAS-M13UKV-E3, 16 : RAS-M16UKV-E3
MCA : Minimum Circuit Amps.
ICF
: Maximum Instantaneous Current Flow (Equivalent to MCA in case of inverter air conditioner)
MOCP : Maximum Overcurrent Protection (Fuse only)
MSC : Maximum Starting Current
Indoor temp. (°C)
FLA : Full Load Amps.
Outdoor temp. (°C)
RLA : Rated Load Amps. RLA under conditions on the right.
– 24 –
DB
27
35
WB
19
—
Outdoor Unit : RAS-3M26YAV-E
<Heating>
System
Combination of
indoor unit operation
1 unit
2 units
Hz
Voltage range
Power supply
Min.
MCA
ICF
Max.
Fan motor FLA
MOCP
(Amps)
MSC
RLA
Indoor
Outdoor
10
–
–
8.15
8.15
20
6.00
6.00
0.15 x 1 = 0.15
0.5
13
–
–
11.20
11.20
20
8.44
8.44
0.15 x 1 = 0.15
0.5
16
–
–
13.15
13.15
20
10.00
10.00
0.15 x 1 = 0.15
0.5
10
10
–
11.16
11.16
20
8.29
8.29
0.15 x 2 = 0.30
0.5
13
10
–
12.23
12.23
20
9.14
9.14
0.15 x 2 = 0.30
0.5
16
10
–
13.00
13.00
20
9.76
9.76
0.15 x 2 = 0.30
0.5
13
13
–
13.00
13.00
20
9.76
9.76
0.15 x 2 = 0.30
0.5
16
13
–
14.00
14.00
20
10.56
10.56
0.15 x 2 = 0.30
0.5
16
16
–
14.78
14.78
20
11.18
11.18
0.15 x 2 = 0.30
0.5
50 or 60
3 units
VoltsPh.
Compressor
230–1
198
264
10
10
10
12.51
12.51
20
9.25
9.25
0.15 x 3 = 0.45
0.5
13
10
10
12.85
12.85
20
9.52
9.52
0.15 x 3 = 0.45
0.5
16
10
10
13.24
13.24
20
9.83
9.83
0.15 x 3 = 0.45
0.5
13
13
10
13.24
13.24
20
9.83
9.83
0.15 x 3 = 0.45
0.5
16
13
10
13.24
13.24
20
9.83
9.83
0.15 x 3 = 0.45
0.5
13
13
13
13.24
13.24
20
9.83
9.83
0.15 x 3 = 0.45
0.5
16
16
10
13.58
13.58
20
10.10
10.10
0.15 x 3 = 0.45
0.5
16
13
13
13.58
13.58
20
10.10
10.10
0.15 x 3 = 0.45
0.5
16
16
13
13.90
13.90
20
10.36
10.36
0.15 x 3 = 0.45
0.5
NOTE :
Model of Indoor unit 10 : RAS-M10UKV-E3, 13 : RAS-M13UKV-E3, 16 : RAS-M16UKV-E3
MCA : Minimum Circuit Amps.
ICF
: Maximum Instantaneous Current Flow (Equivalent to MCA in case of inverter air conditioner)
MOCP : Maximum Overcurrent Protection (Fuse only)
MSC : Maximum Starting Current
Indoor temp. (°C)
FLA : Full Load Amps.
Outdoor temp. (°C)
RLA : Rated Load Amps. RLA under conditions on the right.
– 25 –
DB
20
7
WB
—
6
2. REFRIGERANT R410A
This air conditioner adopts the new refrigerant HFC
(R410A) which does not damage the ozone layer.
The working pressure of the new refrigerant R410A
is 1.6 times higher than conventional refrigerant
(R22). The refrigerating oil is also changed in
accordance with change of refrigerant, so be careful
that water, dust, and existing refrigerant or refrigerating oil are not entered in the refrigerant cycle of the
air conditioner using the new refrigerant during
installation work or servicing time.
The next section describes the precautions for air
conditioner using the new refrigerant. Conforming to
contents of the next section together with the
general cautions included in this manual, perform
the correct and safe work.
(6) When an air conditioning system charged with a
large volume of refrigerant is installed in a small
room, it is necessary to exercise care so that,
even when refrigerant leaks, its concentration
does not exceed the marginal level.
If the refrigerant gas leakage occurs and its
concentration exceeds the marginal level, an
oxygen starvation accident may result.
(7) Be sure to carry out installation or removal
according to the installation manual.
2-1. Safety During Installation/Servicing
Improper installation may cause refrigeration
trouble, water leakage, electric shock, fire, etc.
As R410A’s pressure is about 1.6 times higher than
that of R22, improper installation/servicing may
cause a serious trouble. By using tools and materials exclusive for R410A, it is necessary to carry out
installation/servicing safely while taking the following
precautions into consideration.
(8) Unauthorized modifications to the air conditioner
may be dangerous. If a breakdown occurs
please call a qualified air conditioner technician
or electrician.
Improper repair’s may result in water leakage,
electric shock and fire, etc.
(1) Never use refrigerant other than R410A in an air
conditioner which is designed to operate with
R410A.
If other refrigerant than R410A is mixed, pressure in the refrigeration cycle becomes abnormally high, and it may cause personal injury, etc.
by a rupture.
2-2. Refrigerant Piping Installation
2-2-1. Piping Materials and Joints Used
For the refrigerant piping installation, copper pipes
and joints are mainly used. Copper pipes and joints
suitable for the refrigerant must be chosen and
installed. Furthermore, it is necessary to use clean
copper pipes and joints whose interior surfaces are
less affected by contaminants.
(2) Confirm the used refrigerant name, and use
tools and materials exclusive for the refrigerant
R410A.
The refrigerant name R410A is indicated on the
visible place of the outdoor unit of the air conditioner using R410A as refrigerant. To prevent
mischarging, the diameter of the service port
differs from that of R22.
(3) If a refrigeration gas leakage occurs during
installation/servicing, be sure to ventilate fully.
If the refrigerant gas comes into contact with fire,
a poisonous gas may occur.
(4) When installing or removing an air conditioner,
do not allow air or moisture to remain in the
refrigeration cycle. Otherwise, pressure in the
refrigeration cycle may become abnormally high
so that a rupture or personal injury may be
caused.
(5) After completion of installation work, check to
make sure that there is no refrigeration gas
leakage.
If the refrigerant gas leaks into the room, coming
into contact with fire in the fan-driven heater,
space heater, etc., a poisonous gas may occur.
(1) Copper Pipes
It is necessary to use seamless copper pipes
which are made of either copper or copper alloy
and it is desirable that the amount of residual oil
is less than 40 mg/10 m. Do not use copper
pipes having a collapsed, deformed or discolored portion (especially on the interior surface).
Otherwise, the expansion valve or capillary tube
may become blocked with contaminants.
As an air conditioner using R410A incurs
pressure higher than when using R22, it is
necessary to choose adequate materials.
Thicknesses of copper pipes used with R410A
are as shown in Table 2-2-1. Never use copper
pipes thinner than 0.8 mm even when it is
available on the market.
– 26 –
Table 2-2-1 Thicknesses of annealed copper pipes
Thickness (mm)
Nominal diameter
Outer diameter (mm)
R410A
R22
1/4
6.35
0.80
0.80
3/8
9.52
0.80
0.80
1/2
12.70
0.80
0.80
(2) Joints
For copper pipes, flare joints or socket joints are
used. Prior to use, be sure to remove all contaminants.
a) Flare Joints
Flare joints used to connect the copper pipes
cannot be used for pipings whose outer
diameter exceeds 20 mm. In such a case,
socket joints can be used.
Sizes of flare pipe ends, flare joint ends and
flare nuts are as shown in Tables 2-2-3 to 22-6 below.
b) Socket Joints
Socket joints are such that they are brazed
for connections, and used mainly for thick
pipings whose diameter is larger than 20 mm.
Thicknesses of socket joints are as shown in
Table 2-2-2.
Table 2-2-2 Minimum thicknesses of socket joints
Nominal diameter
Reference outer diameter of
copper pipe jointed (mm)
Minimum joint thickness (mm)
1/4
6.35
0.50
3/8
9.52
0.60
1/2
12.70
0.70
2-2-2. Processing of Piping Materials
When performing the refrigerant piping installation,
care should be taken to ensure that water or dust
does not enter the pipe interior, that no other oil
other than lubricating oils used in the installed air
conditioner is used, and that refrigerant does not
leak. When using lubricating oils in the piping
processing, use such lubricating oils whose water
content has been removed. When stored, be sure to
seal the container with an airtight cap or any other
cover.
(1) Flare Processing Procedures and Precautions
a) Cutting the Pipe
By means of a pipe cutter, slowly cut the pipe
so that it is not deformed.
b) Removing Burrs and Chips
If the flared section has chips or burrs,
refrigerant leakage may occur. Carefully
remove all burrs and clean the cut surface
before installation.
– 27 –
c) Insertion of Flare Nut
d) Flare Processing
Make certain that a clamp bar and copper
pipe have been cleaned.
By means of the clamp bar, perform the flare
processing correctly.
Use either a flare tool for R410A or conventional flare tool.
Flare processing dimensions differ according
to the type of flare tool. When using a conventional flare tool, be sure to secure “dimension A” by using a gauge for size adjustment.
ØD
A
Fig. 2-2-1 Flare processing dimensions
Table 2-2-3 Dimensions related to flare processing for R410A
A (mm)
Outer
diameter
(mm)
Thickness
(mm)
1/4
6.35
3/8
1/2
Nominal
diameter
Conventional flare tool
Flare tool for
R410A clutch type
Clutch type
Wing nut type
0.8
0 to 0.5
1.0 to 1.5
1.5 to 2.0
9.52
0.8
0 to 0.5
1.0 to 1.5
1.5 to 2.0
12.70
0.8
0 to 0.5
1.0 to1.5
2.0 to 2.5
Table 2-2-4 Dimensions related to flare processing for R22
A (mm)
Outer
diameter
(mm)
Thickness
(mm)
1/4
6.35
3/8
1/2
Nominal
diameter
Conventional flare tool
Flare tool for
R22 clutch type
Clutch type
Wing nut type
0.8
0 to 0.5
0.5 to 1.0
1.0 to 1.5
9.52
0.8
0 to 0.5
0.5 to 1.0
1.0 to 1.5
12.70
0.8
0 to 0.5
0.5 to1.0
1.5 to 2.0
Table 2-2-5 Flare and flare nut dimensions for R410A
Nominal
diameter
Outer diameter
(mm)
Thickness
(mm)
A
B
C
D
Flare nut
width
(mm)
1/4
6.35
0.8
9.1
9.2
6.5
13
17
3/8
9.52
0.8
13.2
13.5
9.7
20
22
1/2
12.70
0.8
16.6
16.0
12.9
23
26
Dimension (mm)
– 28 –
Table 2-2-6 Flare and flare nut dimensions for R22
Nominal
diameter
Outer diameter
(mm)
Thickness
(mm)
A
B
C
D
Flare nut
width
(mm)
1/4
6.35
0.8
9.0
9.2
6.5
13
17
3/8
9.52
0.8
13.0
13.5
9.7
20
22
1/2
12.70
0.8
16.2
16.0
12.9
20
24
to
45˚
Dimension (mm)
46˚
B
A
C
43˚
D
to 4
5˚
Fig. 2-2-2 Relations between flare nut and flare seal surface
(2) Flare Connecting Procedures and Precautions
a) Make sure that the flare and union portions
do not have any scar or dust, etc.
b) Correctly align the processed flare surface
with the union axis.
c) Tighten the flare with designated torque by
means of a torque wrench. The tightening
torque for R410A is the same as that for
conventional R22. Incidentally, when the
torque is weak, the gas leakage may occur.
When it is strong, the flare nut may crack and
may be made non-removable. When choosing the tightening torque, comply with values
designated by manufacturers. Table 2-2-7
shows reference values.
Note :
When applying oil to the flare surface, be sure to use
oil designated by the manufacturer. If any other oil is
used, the lubricating oils may deteriorate and cause
the compressor to burn out.
Table 2-2-7 Tightening torque of flare for R410A [Reference values]
Nominal
diameter
Outer diameter
(mm)
Tightening torque
N•m (kgf•cm)
Tightening torque of torque
wrenches available on the market
N•m (kgf•cm)
1/4
6.35
14 to 18 (140 to 180)
16 (160), 18 (180)
3/8
9.52
33 to 42 (330 to 420)
42 (420)
1/2
12.70
50 to 62 (500 to 620)
55 (550)
– 29 –
2-3. Tools
2-3-1. Required Tools
The service port diameter of packed valve of the outdoor unit in the air conditioner using R410A is changed to
prevent mixing of other refrigerant. To reinforce the pressure-resisting strength, flare processing dimensions and
opposite side dimension of flare nut (For Ø12.7 copper pipe) of the refrigerant piping are lengthened.
The used refrigerating oil is changed, and mixing of oil may cause a trouble such as generation of sludge,
clogging of capillary, etc. Accordingly, the tools to be used are classified into the following three types.
(1) Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22))
(2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22)
(3) Tools commonly used for R410A and for conventional refrigerant (R22)
The table below shows the tools exclusive for R410A and their interchangeability.
Tools exclusive for R410A (The following tools for R410A are required.)
Tools whose specifications are changed for R410A and their interchangeability
R410A
air conditioner installation
No.
Usage
Used tool
Conventional air
conditioner installation
Existence of
new equipment
for R410A
Whether conventional
equipment can be used
Whether new equipment
can be used with
conventional refrigerant
①
Flare tool
Pipe flaring
Yes
* (Note 1)
○
②
Copper pipe gauge for
adjusting projection
margin
Flaring by conventional
flare tool
Yes
* (Note 1)
* (Note 1)
③
Torque wrench
(For Ø12.7)
Connection of flare nut
Yes
×
×
④
Gauge manifold
Yes
×
×
⑤
Charge hose
Evacuating, refrigerant
charge, run check, etc.
⑥
Vacuum pump adapter
Vacuum evacuating
Yes
×
○
⑦
Electronic balance for
refrigerant charging
Refrigerant charge
Yes
×
○
⑧
Refrigerant cylinder
Refrigerant charge
Yes
×
⑨
Leakage detector
Gas leakage check
Yes
⑩
Charging cylinder
Refrigerant charge
(Note 2)
×
×
×
○
×
(Note 1) When flaring is carried out for R410A using the conventional flare tools, adjustment of projection
margin is necessary. For this adjustment, a copper pipe gauge, etc. are necessary.
(Note 2) Charging cylinder for R410A is being currently developed.
General tools (Conventional tools can be used.)
In addition to the above exclusive tools, the following equipments which serve also for R22 are necessary.
as the general tools.
(1) Vacuum pump
(4) Reamer
(9) Hole core drill (Ø65)
Use vacuum pump by
(5) Pipe bender
(10) Hexagon wrench
attaching vacuum pump adapter. (6) Level vial
(Opposite side 4mm)
(2) Torque wrench (For Ø6.35)
(11) Tape measure
(7) Screwdriver (+, –)
(3) Pipe cutter
(8) Spanner or Monkey wrench (12) Metal saw
Also prepare the following equipments for other installation method and run check.
(3) Insulation resistance tester
(1) Clamp meter
(4) Electroscope
(2) Thermometer
– 30 –
2-4. Recharging of Refrigerant
When it is necessary to recharge refrigerant, charge the specified amount of new refrigerant according to the
following steps.
Recover the refrigerant, and check no refrigerant
remains in the equipment.
When the compound gauge’s pointer has indicated
–0.1 Mpa (–76 cmHg), place the handle Low in the
fully closed position, and turn off the vacuum
pump’s power switch.
Connect the charge hose to packed valve service
port at the outdoor unit’s gas side.
Keep the status as it is for 1 to 2 minutes, and ensure
that the compound gauge’s pointer does not return.
Connect the charge hose of the vacuum pump
adapter.
Set the refrigerant cylinder to the electronic balance,
connect the connecting hose to the cylinder and the
connecting port of the electronic balance, and charge
liquid refrigerant.
Open fully both packed valves at liquid and gas
sides.
Place the handle of the gauge manifold Low in the
fully opened position, and turn on the vacuum
pump’s power switch. Then, evacuating the
refrigerant in the cycle.
(For refrigerant charging, see the figure below.)
Q Never charge refrigerant exceeding the specified amount.
R If the specified amount of refrigerant cannot be charged, charge refrigerant bit by bit in COOL mode.
S Do not carry out additional charging.
When additional charging is carried out if refrigerant leaks, the refrigerant composition changes in the
refrigeration cycle, that is characteristics of the air conditioner changes, refrigerant exceeding the specified amount is charged, and working pressure in the refrigeration cycle becomes abnormally high pressure, and may cause a rupture or personal injury.
(INDOOR unit)
(Liquid side)
(OUTDOOR unit)
Opened
(Gas side)
Refrigerant cylinder
(With siphon pipe)
Check valve
Closed
Open/Close valve
for charging
Service port
Electronic balance for refrigerant charging
Fig. 2-4-1 Configuration of refrigerant charging
– 31 –
Q Be sure to make setting so that liquid can be charged.
R When using a cylinder equipped with a siphon, liquid can be charged without turning it upside down.
It is necessary for charging refrigerant under condition of liquid because R410A is mixed type of refrigerant.
Accordingly, when charging refrigerant from the refrigerant cylinder to the equipment, charge it turning the
cylinder upside down if cylinder is not equipped with siphon.
[ Cylinder with siphon ]
[ Cylinder without siphon ]
Gauge manifold
Gauge manifold
OUTDOOR unit
OUTDOOR unit
Refrigerant
cylinder
Refrigerant
cylinder
Electronic
balance
Electronic
balance
Siphon
R410A refrigerant is HFC mixed refrigerant.
Therefore, if it is charged with gas, the composition of the charged refrigerant changes and
the characteristics of the equipment varies.
Fig. 2-4-2
2-5. Brazing of Pipes
Q Phosphor bronze brazing filler tends to react
2-5-1. Materials for Brazing
with sulfur and produce a fragile compound
water solution, which may cause a gas leakage. Therefore, use any other type of brazing
filler at a hot spring resort, etc., and coat the
surface with a paint.
R When performing brazing again at time of
servicing, use the same type of brazing filler.
(1) Silver brazing filler
Silver brazing filler is an alloy mainly composed
of silver and copper. It is used to join iron, copper
or copper alloy, and is relatively expen-sive
though it excels in solderability.
(2) Phosphor bronze brazing filler
Phosphor bronze brazing filler is generally used
to join copper or copper alloy.
(3) Low temperature brazing filler
Low temperature brazing filler is generally called
solder, and is an alloy of tin and lead. Since it is
weak in adhesive strength, do not use it for
refrigerant pipes.
2-5-2. Flux
(1) Reason why flux is necessary
• By removing the oxide film and any foreign
matter on the metal surface, it assists the flow
of brazing filler.
• In the brazing process, it prevents the metal
surface from being oxidized.
• By reducing the brazing filler’s surface tension,
the brazing filler adheres better to the treated
metal.
– 32 –
(2) Characteristics required for flux
• Activated temperature of flux coincides with the
brazing temperature.
• Due to a wide effective temperature range, flux
is hard to carbonize.
• It is easy to remove slag after brazing.
• The corrosive action to the treated metal and
brazing filler is minimum.
• It excels in coating performance and is harmless to the human body.
As the flux works in a complicated manner as
described above, it is necessary to select an
adequate type of flux according to the type and
shape of treated metal, type of brazing filler and
brazing method, etc.
(3) Types of flux
• Noncorrosive flux
Generally, it is a compound of borax and boric
acid.
It is effective in case where the brazing temperature is higher than 800°C.
• Activated flux
Most of fluxes generally used for silver brazing
are this type.
It features an increased oxide film removing
capability due to the addition of compounds
such as potassium fluoride, potassium chloride and sodium fluoride to the borax-boric acid
compound.
2-5-3. Brazing
As brazing work requires sophisticated techniques,
experiences based upon a theoretical knowledge, it
must be performed by a person qualified.
In order to prevent the oxide film from occurring in
the pipe interior during brazing, it is effective to
proceed with brazing while letting dry Nitrogen gas
(N2) flow.
Never use gas other than Nitrogen gas.
(1) Brazing method to prevent oxidation
Q Attach a reducing valve and a flow-meter to
the Nitrogen gas cylinder.
R Use a copper pipe to direct the piping material, and attach a flow-meter to the cylinder.
S Apply a seal onto the clearance between the
piping material and inserted copper pipe for
Nitrogen in order to prevent backflow of the
Nitrogen gas.
T When the Nitrogen gas is flowing, be sure to
keep the piping end open.
U Adjust the flow rate of Nitrogen gas so that it
is lower than 0.05 m³ /Hr or 0.02 MPa (0.2kgf/
cm²) by means of the reducing valve.
V After performing the steps above, keep the
Nitrogen gas flowing until the pipe cools down
to a certain extent (temperature at which
pipes are touchable with hands).
W Remove the flux completely after brazing.
(4) Piping materials for brazing and used brazing filler/flux
Piping
material
Used brazing
filler
Used
flux
Copper - Copper
Phosphor copper
Do not use
Copper - Iron
Silver
Paste flux
Iron - Iron
Silver
Vapor flux
M Flow meter
Stop valve
Nitrogen gas
cylinder
From Nitrogen cylinder
Q Do not enter flux into the refrigeration cycle.
R When chlorine contained in the flux remains
within the pipe, the lubricating oil deteriorates. Therefore, use a flux which does not
contain chlorine.
S When adding water to the flux, use water
which does not contain chlorine (e.g. distilled
water or ion-exchange water).
T Remove the flux after brazing.
Pipe
Nitrogen
gas
Rubber plug
Fig. 2-5-1 Prevention of oxidation during brazing
– 33 –
3. CONSTRUCTION VIEWS
3-1. Indoor Unit
RAS-M10UKV-E3, RAS-M13UKV-E3, RAS-M16UKV-E3
RAS-M10UKCV-E3, RAS-M13UKCV-E3, RAS-M16UKCV-E3
Front panel
Air filter
Air inlet
Heat exchanger
208
790
48
Air outlet
6
6
60
60
275
Back body
Knock out system
48
Knock out system
64 53
590
120
80
Hanger
Drain hose (0.54m)
Connecting pipe (0.43m)
(Flare ∅6.35)
Connecting pipe (0.33m)
(For 10,13 series ; Flare ∅9.52
For 16 series ; Flare ∅12.7)
320
Hanger
620
For stud bolt (∅6)
26
Hanger
170 or more
160
170 or more
190
Minimum
distance
to ceiling
40
Minimum
distance
to ceiling
Hanger
Hanger
90
150
160
160
90
150
Installation plate outline
Center line
– 34 –
32
275
45
45
Minimum
distance
to ceiling
For stud bolt
(∅8~∅10)
235
215
65 or more
235
215
57
18
Wireless remote control
3-2. Outdoor Unit
RAS-4M27YAV-E/RAS-4M27YACV-E/RAS-3M26YAV-E
17.5
116
87
12
3-Ø3. 5 hole
21
120 40
280
40
17.5
365
(For anchor bolt)
92
Ø25 hole
Ø8 hole
19
Knock out
Ø20 x 60hole
12
40 58
86 12
50
150
50
150
600
Anchor bolt
(4-Ø12 x 17 hole)
Fan guard
Knock out
25
Handle
320
164
91
Gas valve
38
Ø
51
0
Liquid valve
25
410
514
795
90 53 53 53 53 53 53 53
Service port
400
95
900
Outdoor air temperature sensor
Handle
4 Units Multi Model Only
A unit
Z view
600
Air inlet
Air inlet
Visible outline
of the product
100
or
more
Air outlet
600
or
more
B unit
100
or
more
C unit
Connecting pipe port (Ø6.35)
Connecting pipe port (Ø9.52)
Connecting pipe port (Ø6.35)
Connecting pipe port (Ø9.52)
Connecting pipe port (Ø6.35)
Connecting pipe port (Ø9.52)
Connecting pipe port (Ø6.35)
Connecting pipe port (Ø12.7)
365
D unit
600
or
more
Ø8-Ø10 anchor bolt
Mounting dimension of anchor bolt
– 35 –
Z
4. WIRING DIAGRAM
4-1. Indoor Unit
RAS-M10UKV-E3, RAS-M13UKV-E3, RAS-M16UKV-E3
RAS-M10UKCV-E3, RAS-M13UKCV-E3, RAS-M16UKCV-E3
or MCC-5014
Table 4-1-1 Simple check points for diagnosing faults
Check items
Diagnosis result
1
OPERATION
INDICATOR
Check to see if the OPERATION indicator goes on and off when the main switch
or breaker is turned on. (Check the primary and secondary voltage of transformer.)
2
TERMINAL
BLOCK
Check for power supply voltage between  and ‚. (Refer to the name plate.)
(Check the primary and secondary voltage of transformer.)
Check for fluctuate voltage between ‚ – ƒ. (DC 15 ~ 60V)
3
FUSE
6.3A
Check to see if the fuse blows out.
(Check the R04 of the varistor.)
4
DC 5V
Check the voltage at the No.4 pin on CN13 connector of the infrared receiver.
(Check the transformer and the power supply circuit of the rated voltage.)
5
DC 12V
Check for voltage at the while lead of louver motor.
(Check the transformer and the power supply circuit of the rated voltage.)
6
(DC310 ~ 340V)
DC 35V
Check the voltage at the No.1 pin on CN10 connector.
(Check the DB01, R05 and C03.)
Refer to the service data for the detailed failure diagnosis.
– 36 –
Color
Identification
BRW : BROWN
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GRY : GRAY
PNK : PINK
ORN : ORANGE
GRN : GREEN &
&YEL YELLOW
GRN : GREEN
Color Identification
4-2. Outdoor Unit
BLK
BLU
RED
GRY
PNK
GRN
RAS-4M27YAV-E/RAS-4M27YACV-E/RAS-3M26YAV-E
NOTE
IGBT
: Insulated Gate Bipolar
Transistor
PMV
: Pulse Modulating Valve
TD
: Discharge Temp. sensor
TGa to TGd : Temp. sensor at A to D unit
gas side
TO
: Outdoor Temp. sensor
TE
: Evaporator Temp. sensor
TS
: SuctionTemp. sensor
1
: 4 Units Multi model only
2
: Heat Pump model only
*
*
Thermostat for
compressor
ORN
2 2
ORN 1 1
3 3
3
1 1
1
FM
*
*2
*
PMV
C
PMV
B
PMV
A
6
5
4
3
2
1
6
5
4 CN702
3 WHI
2
1
6
5
4
3
2
1
1 2 3
To
Indoor
unit A
BLK
CN11
+
T03 CT
BU
EU
BV
EV
IGBT
BW module
EW
BX
BY
BZ
T04 CT
TGd
BLU
P.C. Board
(MCC-1359)
TGc
–
Q200
P20
YEL
3 3
CN606 2
1 1
BRN
P19
TGb
P18
2 2
CN604
1 1
2
2 2
CN603
1 1
YEL
TGa
C13
F04
Fuse
3.15A
TS
BLK
C11
C10
F02
Fuse, 15A
TD
Power relay
BLU
YEL
1 1
5
4
3
2
1
BLK
WHI
BLU
RED
PNK
CN303 2 2
1 1
PUR
ORN
3 3
DB01
RY01
CN04
1 1
5
4
3
2
1
P10
R05
5
4
3
CN06
2
1
ORN
P11
R06
P13
GRY
P12
Reactor
(Main)
2 2
1 1 CN05
T02 CT
5 5
Photo coupler
WHI
3 3
CN501
RED
1 1
3 3
RED
ORN
1 2 3
To
Indoor
unit B
P05
Reactor (Sub) PNK
CN13
L01
Varistor
Surge
absorber
CN01
CN02
CN03
BLK
WHI
BLK
1
F01
Fuse
30A
P06
YEL
WHI
1 2 3
To
Indoor
unit C
P15
P14
*
P04
P09
P08
1 1
F500
Fuse
6.3A
1 2 3
To
Indoor unit D
– 37 –
G
E
A
~ Converter
– module
~
+
L02
TO
2 2
1 1
5
4
CN800 3
2
1
C12
BLU
3 3
F300
Fuse
3.15A
P17
TE
CN302
6
5
4 CN701
3 YEL
2
1
P07 P03
WHI
CN10
3 3
CN607 2
GRN
1 1
CN601
Fan
circuit
*
6
5
4 CN703
3 RED
2
1
WHI
3 3
CN602 2
1 1
6
1
5
4 CN704
3 BLU
2
1
6
5
4
3
2
1
CN09
WHITE
BROWN
ORANGE
YELLOW
PURPLE
BLU
3 3
2 2 CN300
1 1
PMV
D
CN608 2 2
1 1
1
3 3
CN605 2
1 1
5 5
4 4
3 CN301
2
1 1
6
5
4
3
2
1
RED
CM
CN705
Fan motor
RED
2 2
1 1
2 2
1 1
Compressor
SUB P.C. Board
(MCC-818)
P501
P500
4-way valve coil
CN802
WHI :
BRN:
ORN:
YEL :
PUR:
: BLACK
: BLUE
: RED
: GRAY
: PINK
: GREEN
BLK
Terminal block L N
Power supply
50/60Hz
AC 220–240V
2 2
1 1
Reactor
(Main)
2 2
1 1
5. SPECIFICATIONS OF ELECTRICAL PARTS
5-1. Indoor Unit
RAS-M10UKV-E3, RAS-M13UKV-E3, RAS-M16UKV-E3
RAS-M10UKCV-E3, RAS-M13UKCV-E3, RAS-M16UKCV-E3
No.
Parts name
Type
1
Fan motor (for indoor)
ICF-35-19-4
2
Thermo. sensor (TA-sensor)
3
DC-DC transformer (T01)
4
Microcomputer
(–)
5
Heat exchanger sensor
(TC-sensor)
(–)
6
Line filter (L01)
7
Diode (DB01)
8
Capacitor (C03)
9
Fuse (F01)
10
Power supply IC (IC01)
STR-L472
11
Varistor (R21, R109)
15G561K
12
Resistor (R01)
13
Louver motor
(–)
SWT-70
SS11V-06270
D3SBA60
Specifications
DC 340V, 30W
10kΩ at 25°C
DC 390V, Secondary DC 15V, 12V, 7V
10kΩ at 25°C
27mH, AC 0.64A
4A, 600V
KMH450VNSN120M25C
120µF, 450V
FCU250V3.15A
T3.15A, 250V
RF-5TK4R7
MP24GA
– 38 –
560V
4.7Ω, 5W
Output (Rated) 1W, 16 poles, 1 phase DC12V
5-2. Outdoor Unit
RAS-4M27YAV-E, RAS-4M27YACV-E, RAS-3M26YAV-E
No.
1
Parts name
Model name
SC coil (Noise filter) (L01)
SC-20-01J-A
AC2 50V, 20A, 0.15mH
SC coil (Noise filter) (L02)
SC-20-S03J
AC 250V, 20A, 0.3mH
Primary side DC 280V
Secondary side :
7.5V x 1, 13V x 1
26.5V x 3, 16V x 1, 15V x 1
2
DC-DC transformer
3
Outside fan motor
4
Relay (4-way valve)
G5N-1A
Coil
: DC 12V
Contact : 2A, AC250V
5
Relay (Power relay)
G4A-1A-PE
Coil
: DC 12V
Contact : 20A, AC250V
6
Discharge temp. sensor
(TD-sensor)
(Inverter attached)
64kΩ (20°C)
7
Outside air temp. sensor
(TO-sensor)
(Inverter attached)
10kΩ (25°C)
8
Temp. sensor at A room
gas side (TGA-sensor)
(Inverter attached)
10kΩ (25°C)
9
Temp. sensor at B room
gas side (TGB-sensor)
(Inverter attached)
10kΩ (25°C)
10
Temp. sensor at C room
gas side (TGC-sensor)
(Inverter attached)
10kΩ (25°C)
*1
11
Temp. Sensor at D room
gas side (TGD-sensor)
(Inverter attached)
10kΩ (25°C)
*2
12
Evaporator temp. sensor
(TE-sensor)
(Inverter attached)
10kΩ (25°C)
*2
13
Suction temp. sensor
(TS-sensor)
(Inverter attached)
10kΩ (25°C)
14
Terminal block (6P)
—
20A, AC 250V
15
Terminal block (3P)
—
20A, AC 250V
*2
16
Fuse
SWT-43
Rating
ICF-140-60-1
DC 140V, 60W
For protection of switching power source (F04)
3.15A, AC 250V
For protection of converter module breakage
15A, AC 250V
For protection of inverter input overcurrent
30A, AC 250V
For protection of switching power source (F300) 3.15A, AC 250V
For protection of power source
6.3A, AC 250V
17
Electrolytic capacitor
LLQ2G761KHUATF
DC 400V, 760µF
18
Transistor module
6MBI40SS-060-01
600V, 40A
19
Compressor
DA220A2F-20L
3 phases, 4 poles, 2000W
20
Compressor thermo.
US622KXTMQO
OFF : 125 ± 4°C, ON : 90 ± 5°C
21
Converter module
22
Reactor (Main)
CH-47-Z-K
L = 8mH, 16A
23
Reactor (Sub)
CH-43-Z-K
L = 10mH, 1A
NOTE :
MP7004
unit multi model only
*12 :: 4Heat
pump model only
*
– 39 –
Diode : 600V, 20A
IGBT : 600V, 40A
6. REFRIGERANT CYCLE DIAGRAM
RAS-M10UKV-E3, RAS-M13UKV-E3, RAS-M16UKV-E3
RAS-4M27YAV-E
Temp. measurement T1
TCa
Evaporator
To
To
To
D room C room B room
Allowable height
difference : 15m
Allowable pipe length
Indoor unit A
To
To
To
D room C room B room
Cross flow fan
TA
Connecting pipe
Thickness : 0.8mm
Ø12.7 :
RAS-M16UKV-E
Connecting pipe
Thickness : 0.8mm
Ø6.35
Per 1 unit
Max. : 25m
Min. : 2m
Total
Max. : 70m
Ø9.52 :
RAS-M10UKV-E
RAS-M13UKV-E
Sectional shape
of heat insulator
(Ø9.52) (Ø9.52) (Ø9.52) (Ø12.7)
(Ø6.35) (Ø6.35) (Ø6.35) (Ø6.35)
Strainer
TGd
TGc
P Pressure
measurement
Gauge attaching port
Vacuum pump
connecting port
Accumulating
tank 1500cc
TGb
Pulse modulating
valve at liquid side
(SKV18D26)
TGa
Packed valve (Liquid side)
(Ø9.52)
Packed valve (Gas side)
(Ø12.7)
TS
Muffler
Ø25 x 160L
TD
Compressor
DA220A2F-20L
TE
Temp. measurement T2
TO
Propeller fan
Outdoor unit
Refrigerant amount : 2.4kg (R410A)
NOTE :
Gas leak check position
Refrigerant flow (Cooling)
Refrigerant flow (Heating)
NOTE
• The maximum pipe length of this air conditioner is 70 m. The additional charging of refrigerant is unnecesary
because this conditioner is designed with charge-less specification.
• Connection of only one indoor unit is unavailable. Two or more indoor units should be connected.
– 40 –
RAS-M10UKCV-E3, RAS-M13UKCV-E3, RAS-M16UKCV-E3
RAS-4M27YACV-E
Temp. measurement T1
To
D room
To
C room
To
B room
TCa
Indoor unit A
To
D room
To
C room
To
B room
Allowable height
difference : 15m
Allowable pipe length
Evaporator
Cross flow fan
TA
Connecting pipe
Thickness : 0.8mm
Ø12.7 :
RAS-M16UKCV-E
Connecting pipe
Thickness : 0.8mm
Ø6.35
Per 1 unit
Max. : 25m
Min. : 2m
Total
Max. : 70m
Ø9.52 :
RAS-M10UKCV-E
RAS-M13UKCV-E
(Ø9.52)
(Ø9.52)
(Ø9.52)
Sectional shape
of heat insulator
(Ø12.7)
(Ø6.35)
(Ø6.35)
(Ø6.35)
(Ø6.35)
Strainer
TGd
TGc
P Pressure
measurement
Gauge attaching port
Vacuum pump
connecting port
TGb
Pulse modulating
valve at liquid side
(SKV18D26)
TGa
Packed valve (Gas side)
(Ø12.7)
Packed valve (Liquid side)
(Ø9.52)
Muffler
Ø25 x 160L x
Accumulating
tank 1500cc
TD
Compressor
DA220A2F-20L
Temp. measurement T2
TO
Propeller fan
Refrigerant amount : 2.2kg (R410A)
Outdoor unit
NOTE :
Gas leak check position
Refrigerant flow
NOTE
• The maximum pipe length of this air conditioner is 70 m. The additional charging of refrigerant is unnecesary
because this conditioner is designed with charge-less specification.
– 41 –
RAS-M10UKV-E3, RAS-M13UKV-E3, RAS-M16UKV-E3
RAS-3M26YAV-E
Temp. measurement T1
To
B room
To
C room
TCa
To
C room
Indoor unit A
To
B room
Allowable height
difference : 15m
Allowable pipe length
Evaporator
Cross flow fan
TA
Connecting pipe
Thickness : 0.8mm
Ø12.7 :
RAS-M16UKV-E
Connecting pipe
Thickness : 0.8mm
Ø6.35
Per 1 unit
Max. : 25m
Min. : 2m
Total
Max. : 50m
Ø9.52 :
RAS-M10UKV-E
RAS-M13UKV-E
Sectional shape
of heat insulator
(Ø9.52)
(Ø9.52)
(Ø12.7)
(Ø6.35)
(Ø6.35)
(Ø6.35)
Strainer
TGc
P Pressure
measurement
Gauge attaching port
Vacuum pump
connecting port
TGb
Pulse modulating
valve at liquid side
(SKV18D26)
TGa
Packed valve (Gas side)
(Ø12.7)
Packed valve
(Liquid side)
(Ø9.52)
Muffler
Ø25 x 160L
Accumulating
tank 1500cc
TS
TD
Compressor
DA220A2F-20L
TE
Temp. measurement T2
TO
Propeller fan
Outdoor unit
Refrigerant amount : 2.4kg (R410A)
NOTE :
Gas leak check position
Refrigerant flow (Cooling)
Refrigerant flow (Heating)
NOTE
• The maximum pipe length of this air conditioner is 50 m. The additional charging of refrigerant is unnecesary
because this conditioner is designed with charge-less specification.
• Connection of only one indoor unit is unavailable. Two or more indoor units should be connected.
– 42 –
6-1. Operation Data
Outdoor Unit : RAS-4M27YAV-E
<Cooling>
Temperature
condition
Indoor
Outdoor
No. of
operating
units
1 unit
2 units
3 units
27 /19
35 / –
4 units
Operating combination
(Unit)
A
B
C
D
10
–
–
–
13
–
–
16
–
10
Standard
pressure
P (MPa)
Heat exchanger
pipe temp.
Indoor
fan
Outdoor Compressor
revolution
fan
(rps)
T1 (°C)
T2 (°C)
0.8 to 1.0
9 to 11
45 to 47
High
MED
22
–
0.7 to 0.9
8 to 10
46 to 48
High
MED
35
–
–
0.6 to 0.8
7 to 9
47 to 49
High
MED
45
10
–
–
0.8 to 1.0
10 to 12
47 to 49
High
MED
42
13
10
–
–
0.8 to 1.0
10 to 12
48 to 50
High
MED
46
16
10
–
–
0.8 to 1.0
10 to 12
49 to 51
High
MED
50
13
13
–
–
0.8 to 1.0
10 to 12
50 to 52
High
MED
54
16
13
–
–
0.7 to 0.9
9 to 11
51 to 53
High
MED
58
16
16
–
–
0.7 to 0.9
9 to 11
52 to 54
High
MED
62
10
10
10
–
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
13
10
10
–
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
16
10
10
–
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
13
13
10
–
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
16
13
10
–
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
13
13
13
–
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
16
16
10
–
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
16
13
13
–
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
16
16
13
–
0.8 to 1.0
12 to 14
51 to 53
High
MED
60
16
16
16
–
0.8 to 1.0
12 to 14
51 to 53
High
MED
60
10
10
10
10
0.9 to 1.1
12 to 14
51 to 53
High
MED
61
13
10
10
10
0.9 to 1.1
12 to 14
51 to 53
High
MED
61
16
10
10
10
0.9 to 1.1
12 to 14
51 to 53
High
MED
61
13
13
10
10
0.9 to 1.1
12 to 14
51 to 53
High
MED
61
16
13
10
10
0.9 to 1.1
12 to 14
51 to 53
High
MED
61
13
13
13
10
0.9 to 1.1
12 to 14
51 to 53
High
MED
61
16
13
13
10
0.9 to 1.1
12 to 14
51 to 53
High
MED
62
16
16
10
10
0.9 to 1.1
12 to 14
51 to 53
High
MED
62
NOTES :
Model of Indoor unit 10 : RAS-M10UKV-E3, 13 : RAS-M13UKV-E3, 16 : RAS-M16UKV-E3
NOTES :
(1) Measure surface temperature of heat exchanger pipe around center of heat exchanger path U bend.
(Thermistor thermometer)
(2) Connecting piping condition : 5 meters x 4 units (5m/each indoor unit)
– 43 –
Outdoor Unit : RAS-4M27YAV-E
<Heating>
Temperature
condition
Indoor
Outdoor
No. of
operating
units
1 unit
2 units
3 units
20 / –
7/6
4 units
Operating combination
(Unit)
A
B
C
D
10
–
–
–
13
–
–
16
–
10
Standard
pressure
P (MPa)
Heat exchanger
pipe temp.
Indoor
fan
Outdoor Compressor
revolution
fan
(rps)
T1 (°C)
T2 (°C)
2.7 to 2.9
44 to 46
2 to 4
High
MED
41
–
3.2 to 3.4
52 to 54
2 to 4
High
MED
52
–
–
3.6 to 3.9
53 to 55
2 to 4
High
MED
56
10
–
–
2.7 to 2.9
45 to 47
0 to 2
High
MED
62
13
10
–
–
2.8 to 3.0
45 to 47
0 to 2
High
MED
64
16
10
–
–
2.9 to 3.1
46 to 48
0 to 2
High
MED
66
13
13
–
–
2.9 to 3.1
46 to 48
0 to 2
High
MED
67
16
13
–
–
3.0 to 3.2
47 to 49
–1 to 1
High
MED
69
16
16
–
–
3.1 to 3.3
48 to 50
–1 to 1
High
MED
71
10
10
10
–
2.3 to 2.5
38 to 40
–1 to 1
High
MED
72
13
10
10
–
2.3 to 2.5
38 to 40
–1 to 1
High
MED
72
16
10
10
–
2.3 to 2.5
38 to 40
–1 to 1
High
MED
72
13
13
10
–
2.3 to 2.5
38 to 40
–1 to 1
High
MED
73
16
13
10
–
2.3 to 2.5
38 to 40
–1 to 1
High
MED
73
13
13
13
–
2.3 to 2.5
38 to 40
–1 to 1
High
MED
73
16
16
10
–
2.3 to 2.5
38 to 40
–1 to 1
High
MED
73
16
13
13
–
2.5 to 2.7
37 to 39
–2 to 0
High
MED
74
16
16
13
–
2.5 to 2.7
37 to 39
–2 to 0
High
MED
74
16
16
16
–
2.5 to 2.7
37 to 39
–2 to 0
High
MED
74
10
10
10
10
2.0 to 2.2
33 to 35
–2 to 0
High
MED
72
13
10
10
10
2.0 to 2.2
33 to 35
–2 to 0
High
MED
72
16
10
10
10
2.0 to 2.2
33 to 35
–2 to 0
High
MED
73
13
13
10
10
2.0 to 2.2
33 to 35
–2 to 0
High
MED
73
16
13
10
10
2.0 to 2.2
33 to 35
–2 to 0
High
MED
73
13
13
13
10
2.0 to 2.2
33 to 35
–2 to 0
High
MED
73
16
13
13
10
2.0 to 2.2
33 to 35
–2 to 0
High
MED
74
16
16
10
10
2.0 to 2.2
33 to 35
–2 to 0
High
MED
74
NOTES :
Model of Indoor unit 10 : RAS-M10UKV-E3, 13 : RAS-M13UKV-E3, 16 : RAS-M16UKV-E3
NOTES :
(1) Measure surface temperature of heat exchanger pipe around center of heat exchanger path U bend.
(Thermistor thermometer)
(2) Connecting piping condition : 5 meters x 4 units (5m/each indoor unit)
– 44 –
Outdoor Unit : RAS-4M27YACV-E
<Cooling>
Temperature
condition
Indoor
Outdoor
No. of
operating
units
1 unit
2 units
3 units
27 /19
35 / –
4 units
Operating combination
(Unit)
A
B
C
D
10
–
–
–
13
–
–
16
–
10
Standard
pressure
P (MPa)
Heat exchanger
pipe temp.
Indoor
fan
Outdoor Compressor
revolution
fan
(rps)
T1 (°C)
T2 (°C)
0.8 to 1.0
9 to 11
45 to 47
High
MED
22
–
0.7 to 0.9
8 to 10
46 to 48
High
MED
35
–
–
0.6 to 0.8
7 to 9
47 to 49
High
MED
45
10
–
–
0.8 to 1.0
10 to 12
47 to 49
High
MED
42
13
10
–
–
0.8 to 1.0
10 to 12
48 to 50
High
MED
46
16
10
–
–
0.8 to 1.0
10 to 12
49 to 51
High
MED
50
13
13
–
–
0.8 to 1.0
10 to 12
50 to 51
High
MED
54
16
13
–
–
0.7 to 0.9
9 to 11
51 to 53
High
MED
58
16
16
–
–
0.7 to 0.9
9 to 11
52 to 54
High
MED
62
10
10
10
–
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
13
10
10
–
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
16
10
10
–
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
13
13
10
–
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
16
13
10
–
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
13
13
13
–
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
16
16
10
–
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
16
13
13
–
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
16
16
13
–
0.8 to 1.0
12 to 14
51 to 53
High
MED
60
16
16
16
–
0.8 to 1.0
12 to 14
51 to 53
High
MED
60
10
10
10
10
0.9 to 1.1
12 to 14
51 to 53
High
MED
61
13
10
10
10
0.9 to 1.1
12 to 14
51 to 53
High
MED
61
16
10
10
10
0.9 to 1.1
12 to 14
51 to 53
High
MED
61
13
13
10
10
0.9 to 1.1
12 to 14
51 to 53
High
MED
61
16
13
10
10
0.9 to 1.1
12 to 14
51 to 53
High
MED
61
13
13
13
10
0.9 to 1.1
12 to 14
51 to 53
High
MED
61
16
13
13
10
0.9 to 1.1
12 to 14
51 to 53
High
MED
62
16
16
10
10
0.9 to 1.1
12 to 14
51 to 53
High
MED
62
NOTES :
Model of Indoor unit 10 : RAS-M10UKCV-E3, 13 : RAS-M13UKCV-E3, 16 : RAS-M16UKCV-E3
NOTES :
(1) Measure surface temperature of heat exchanger pipe around center of heat exchanger path U bend.
(Thermistor thermometer)
(2) Connecting piping condition : 5 meters x 4 units (5m/each indoor unit)
– 45 –
Outdoor Unit : RAS-3M26YAV-E
<Cooling>
Temperature
condition
Indoor
Outdoor
No. of
operating
units
1 unit
2 units
27 /19
Operating combination
(Unit)
A
B
C
10
–
–
13
–
16
Standard
pressure
P (MPa)
Heat exchanger
pipe temp.
Indoor
fan
Outdoor Compressor
revolution
fan
(rps)
T1 (°C)
T2 (°C)
0.8 to 1.0
9 to 11
45 to 47
High
MED
22
–
0.7 to 0.9
8 to 10
46 to 48
High
MED
35
–
–
0.6 to 0.8
7 to 9
47 to 49
High
MED
45
10
10
–
0.8 to 1.0
10 to 12
47 to 49
High
MED
42
13
10
–
0.8 to 1.0
10 to 12
48 to 50
High
MED
46
16
10
–
0.8 to 1.0
10 to 12
49 to 51
High
MED
50
13
13
–
0.8 to 1.0
10 to 12
50 to 51
High
MED
54
16
13
–
0.7 to 0.9
9 to 11
51 to 53
High
MED
58
16
16
–
0.7 to 0.9
9 to 11
52 to 54
High
MED
62
10
10
10
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
13
10
10
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
16
10
10
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
13
13
10
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
16
13
10
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
13
13
13
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
16
16
10
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
16
13
13
0.8 to 1.0
11 to 13
51 to 53
High
MED
60
16
16
13
0.8 to 1.0
12 to 14
51 to 53
High
MED
60
35 / –
3 units
NOTES :
Model of Indoor unit 10 : RAS-M10UKV-E3, 13 : RAS-M13UKV-E3, 16 : RAS-M16UKV-E3
NOTES :
(1) Measure surface temperature of heat exchanger pipe around center of heat exchanger path U bend.
(Thermistor thermometer)
(2) Connecting piping condition : 5 meters x 3 units (5m/each indoor unit)
– 46 –
Outdoor Unit : RAS-3M26YAV-E
<Heating>
Temperature
condition
Indoor
Outdoor
No. of
operating
units
1 unit
2 units
27 / –
Operating combination
(Unit)
A
B
C
10
–
–
13
–
16
Standard
pressure
P (MPa)
Heat exchanger
pipe temp.
Indoor
fan
Outdoor Compressor
revolution
fan
(rps)
T1 (°C)
T2 (°C)
2.6 to 2.8
44 to 46
2 to 4
High
MED
40
–
3.3 to 3.5
52 to 54
1 to 3
High
MED
50
–
–
3.5 to 3.7
55 to 57
1 to 3
High
MED
53
10
10
–
2.7 to 2.9
45 to 47
0 to 2
High
MED
62
13
10
–
2.8 to 3.0
45 to 47
0 to 2
High
MED
63
16
10
–
2.9 to 3.1
46 to 48
0 to 2
High
MED
65
13
13
–
2.9 to 3.1
46 to 48
0 to 2
High
MED
66
16
13
–
3.1 to 3.3
47 to 49
0 to 2
High
MED
68
16
16
–
3.3 to 3.5
50 to 52
0 to 2
High
MED
70
10
10
10
2.3 to 2.5
38 to 40
–1 to 1
High
MED
72
13
10
10
2.3 to 2.5
38 to 40
–1 to 1
High
MED
72
16
10
10
2.3 to 2.5
38 to 40
–1 to 1
High
MED
72
13
13
10
2.3 to 2.5
38 to 40
–1 to 1
High
MED
73
16
13
10
2.3 to 2.5
38 to 40
–1 to 1
High
MED
73
13
13
13
2.3 to 2.5
38 to 40
–1 to 1
High
MED
73
16
16
10
2.3 to 2.5
38 to 40
–1 to 1
High
MED
73
16
13
13
2.5 to 2.7
37 to 39
–2 to 0
High
MED
74
16
16
13
2.5 to 2.7
37 to 39
–2 to 0
High
MED
74
7/6
3 units
NOTES :
Model of Indoor unit 10 : RAS-M10UKV-E3, 13 : RAS-M13UKV-E3, 16 : RAS-M16UKV-E3
NOTES :
(1) Measure surface temperature of heat exchanger pipe around center of heat exchanger path U bend.
(Thermistor thermometer)
(2) Connecting piping condition : 5 meters x 3 units (5m/each indoor unit)
– 47 –
7. CONTROL BLOCK DIAGRAM
Indoor Unit Control Panel
7-1. Indoor Unit
M.C.U.
Heat Exchanger Sensor
Temperature Sensor
Functions
• Louver Control
Operation
Display
• 3-minute Delay at Restart for Compressor
Timer
Display
• Motor Revolution Control
Infrared Rays Signal Receiver
Initiallizing Circuit
Infrared
Rays
Clock Frequency
Oscillator Circuit
Filter Sign
Display
• Processing
(Temperature Processing)
• Timer
Fan Only
Sign Display
Indoor Fan
Motor
Power Supply
Circuit
Remote
Control
Outdoor unit
ON/OFF Signal
Louver ON/OFF Signal
Louver Driver
Noise Filter
From Outdoor Unit
Louver Motor
Outdoor Unit
REMOTE CONTROLLER
RAS-M10UKV-E3, RAS-M13UKV-E3, RAS-M16UKV-E3
RAS-M10UKCV-E3, RAS-M13UKCV-E3, RAS-M16UKCV-E3
(Heat pump model)
(Cooling only model)
Infrared
Rays
Remote Controller
Remote Controller
Operation (START/STOP)
Operation (START/STOP)
Operation Mode Selection
AUTO, COOL, DRY, HEAT
Operation Mode Selection
AUTO, COOL, DRY, FAN ONLY
Thermo. Setting
Thermo. Setting
Fan Speed Selection
Fan Speed Selection
ON TIMER Setting
ON TIMER Setting
OFF TIMER Setting
OFF TIMER Setting
Louver AUTO Swing
Louver AUTO Swing
Louver Direction Setting
Louver Direction Setting
ECONO.
ECONO.
– 48 –
Infrared
Rays
7-2. Outdoor Unit (Inverter Assembly)
RAS-4M27YAV-E, RAS-4M27YACV-E, RAS-3M26YAV-E
*2
Outdoor air temp. Sensor
Gas side pipe temp. Sensor
Suction temp. Sensor
Evaporator temp. Sensor
Discharge temp. Sensor
MCC-818 (SUB-P.C. B)
A unit P.M.V.
A unit
send/receive
circuit
M.C.U
• Inverter outdoor frequency control
B unit P.M.V.
• A/D converter function
Driver
circuit of
P.M.V.
C unit P.M.V.
B unit
send/receive
circuit
• P.M.V. control
• Discharge temp. control
*1
D unit P.M.V.
*2
4-Way valve
C unit
send/receive
circuit
• Error display
• Signal communication to MCU
• PWM synthesis function
Relay circuit
Rotor position
detect circuit
Outdoor
fan
motor
Inverter
(DC
AC)
Gate drive
circuit
Over current
sensor
Over current
detect circuit
D unit
send/receive
circuit
*1
Clock frequency
oscillator circuit
16MHz
Signal communication
to MCU
220–240V, 50/60Hz
MCC-1359 (MAIN-P.C. B)
Noise filter
Clock frequency
oscillator circuit
10MHz
Input current
sensor
M.C.U (DSP)
• PWM synthesis function
• Input current release control
High power factor
correction circuit
• IGBT over current detect control
• High power factor correction control
• Signal communication to MCU
Converter
(AC
DC)
• Output current release control
• A/D converter function
Over current
sensor
Over current
detect circuit
Inverter
(DC
AC)
Gate drive
circuit
Output current
sensor
Compressor
NOTE :
P.M.V : Pulse modulating valve
PWM : Pulse width modulation
*1 : 4 unit multi model only *2 : Heat pump model only
– 49 –
IGBT : Insulated gate bipolar
transistor
DSP : Digital signal processor
8. OPERATION DESCRIPTION
8-1. Outline of Air Conditioner Control
This air conditioner is a capacity-variable type air
conditioner, which uses DC motors for the indoor fan
motors and the outdoor fan motor. And the capacityproportional control compressor which can change
the motor speed in the range from 15 to 90 rps is
mounted. The DC motor drive circuit is mounted to
the indoor unit. The compressor and the inverter to
control fan motor are mounted to the outdoor unit.
The entire air conditioner is mainly controlled by the
indoor unit controller.
The indoor unit controller drives the indoor fan motor
based upon command sent from the remote controller, and transfers the operation command to the
outdoor unit controller.
The outdoor unit controller receives operation
command from the indoor unit side, and controls the
outdoor fan and the pulse modulating valve.
Besides, detecting revolution position of the compressor motor, the outdoor unit controller controls
speed of the compressor motor by controlling output
voltage of the inverter and switching timing of the
supply power (current transfer timing) so that motors
drive according to the operation command.
And then, the outdoor unit controller transfers
reversely the operating status information of the
outdoor unit to control the indoor unit controller.
As the compressor adopts four-pole
brushless DC motor, the frequency of the
supply power from inverter to compressor
is two-times cycles of the actual number of
revolution.
(1) Role of indoor unit controller
The indoor unit controller judges the operation
commands from the remote controller and
assumes the following functions.
• Judgment of suction air temperature of the
indoor heat exchanger by using the indoor
temp. sensor.
• Temperature setting of the indoor heat exchanger by using heat exchanger sensor
(Prevent-freezing control)
• Louver motor control
• Indoor fan motor operation control
• LED display control
• Transferring of operation command signal
(Serial signal) to the outdoor unit
• Reception of information of operation status
(Serial signal including outside temp. data) to
the outdoor unit and judgment/display of error
(2) Role of outdoor unit controller
Receiving the operation command signal (Serial
signal) from the indoor controller, the outdoor
unit performs its role.
• Compressor operation
Operations followed
control
to judgment of
• Operation control of
serial signal from
outdoor fan motor
indoor side.
• P.M.V. control



• Detection of inverter input current and current
release operation
• Over-current detection and prevention operation to transistor module (Compressor stop
function)
• Compressor and outdoor fan stop function
when serial signal is off (when the serial signal
does not reach the board assembly of outdoor
control by trouble of the signal system)
• Transferring of operation information (Serial
signal) from outdoor unit to indoor unit
• Detection of outdoor temperature and operation revolution control
• Defrost control in heating operation (Temp.
measurement by outdoor heat exchanger and
control for 4-way valve and outdoor fan)
(3) Contents of operation command signal (Serial
signal) from indoor unit controller to outdoor unit
controller
The following three types of signals are sent
from the indoor unit controller.
• Operation mode set on the remote controller
• Compressor revolution command signal
defined by indoor temperature and set temperature
(Correction along with variation of room
temperature and correction of indoor heat
exchanger temperature are added.)
• For these two types of signals ( [Operation
mode] and [Compressor revolution] ), the
outdoor unit controller monitors the input
current to the inverter, and performs the
followed operation within the range that current
does not exceed the allowable value.
• Temperature of indoor heat exchanger by
indoor heat exchanger sensor
(Minimum revolution control)
– 50 –
(4) Contents of operation command signal (Serial
signal) from outdoor unit controller to indoor unit
controller
The following signals are sent from the outdoor
unit controller.
• The current operation mode
• The current compressor revolution
• Outdoor temperature
• Existence of protective circuit operation
For transferring of these signals, the indoor unit
controller monitors the contents of signals, and
judges existence of trouble occurrence.
Contents of judgment are described below.
• Whether distinction of the current operation
status meets to the operation command
signal
• Whether protective circuit operates
When no signal is received from the outdoor
unit controller, it is assumed as a trouble.
8-1-1. Capacity Control
The cooling capacity is varied by changing compressor motor speed. The inverter changes compressor
motor speed by changing AC 220–240V power to
DC once, and controls capacity by changing supply
power status to the compressor with transis-tor
module (includes 6 transistors). The outline of the
control is as follows : The revolution position and
revolution speed of the motor are detected by
detecting winding electromotive force of the com
pressor motor under operation, and the revolution
speed is changed so that the motor drives based
upon revolution speed of the operation command by
changing timing (current transfer timing) to ex
change inverter output voltage and supply power
winding.
Detection of the revolution position for controlling is
performed 12 times per 1 revolution of compressor.
The range of supply power frequency to the com
pressor differs according to the operation status
(COOL, DRY).
Table 8-1-1 Compressor revolution range
No. of
Operation
operating
mode
unit
1 unit
Combination
of indoor units
Compressor
revolution
(rps)
M10
20 to 28
M13
20 to 43
M16
20 to 53
No. of
Operation
operating
mode
unit
1 unit
COOL
Combination
of indoor units
Compressor
revolution
(rps)
M10
15 to 52
M13
15 to 63
M16
15 to 67
HEAT
2 units
○*
20 to 66
2 units
○*
15 to 90
3 units
○*
31 to 69
3 units
○*
17 to 90
4 units
○*
31 to 69
4 units
○*
22 to 90
* : In case that any multiple indoor units are combined.
8-1-2. Current Release Control
8-1-3. Power Factor Improvement Control
The outdoor main circuit control section (Inverter
assembly) detects the input current to the outdoor
unit. If the current value with compressor motor
speed instructed from indoor side exceeds the
specified value, the outdoor main circuit control
section controls compressor motor speed by reducing motor speed so that value becomes closest to
the command within the limited value.
Power factor improvement control is performed
mainly aiming to reduce the current on much power
consumption of cooling/heating operation. Controlling starts from the time when input power has
reached at a certain point. To be concrete, IGBT of
the power factor improvement circuit is used, and the
power factor is improved by keeping IGBT on for an
arbitrary period to widen electro-angle of the input
current.
– 51 –
8-1-4. Prevent-Freezing Control
8-1-6. Louver Control
The indoor heat exchanger sensor detects refrigerant vapor temperature in COOL/DRY operation. If
the temperature is below the specified value, compressor motor speed is reduced so that operation is
performed in temperature below the specified value
to prevent-freezing of indoor heat exchanger.
(1) Vertical air flow louvers
Positions of vertical air flow louvers are automatically controlled according to the operation status
(AUTO, COOL, DRY, HEAT). Besides, positions of
vertical air flow louvers can be arbitrarily set by
pressing the [SET] button. The louver position which
has been set by the [SET] button is stored in microcomputer, and the louver is automatically set at the
stored position in the next operation.
8-1-5. P. M. V. (Pulse Modulating Valve)
Using P.M.V., refrigerant flow of refrigeration cycle is
varied for the optimum temperature. Controlling
each unit separately by four P.M.V. corresponds to
difference of pipe length, fan speed, and unit temperature.
If an error occurs on cycle temperature when power
source of the air conditioner has been turned on,
and if start/stop times of the outdoor unit are 30
times, move the valve once until it hits on the stopper
for positioning of the valve. In this case, ticktack
sound may be heard.
(2) Swing
If the [AUTO] button is pressed during running
operation, vertical air flow louvers start swinging.
When the [AUTO] button is pressed again, swinging
stops.
8-1-7. Indoor Fan Control (DC Fan Motor)
The indoor fan is operated by motor speed non-step
variable DC drive system motor. For flow rate, motor
speed is controlled manually in three steps (LOW,
MED, HIGH), and with the unit of 10 rpm from upper
limit to lower limit in AUTO mode as described in
Table 8-1-2. It is not selected by relay, so selecting
sound does not generate.
Table 8-1-2
Operation
mode
Cooling
and Fan
only
DRY
Heating
and Fan
only
Fan
mode
H
M+
M
L+
L
LL+
L
LUL
SUL
H
M+
M
L+
L
L-
Remote
Control
HIGH
M10
Motor speed
( rpm )
MED+
MED
LOW+
LOW
HIGH
MED+
MED
LOW+
LOW
1190
1080
1100
1000
960
950
910
850
950
910
850
720
660
1250
1200
1160
1060
1010
1050
940
930
Air flow rate
( m3/h )
560
510
510
460
440
430
400
370
430
400
370
300
260
610
580
550
500
460
490
430
420
NOTE :
• UL : Ultra Low, SUL : Super Ultra Low
– 52 –
M13
Motor speed
( rpm )
1210
1130
1130
1050
990
950
910
850
950
910
850
750
700
1290
1280
1190
1100
1030
1050
940
930
Air flow rate
( m3/h )
590
530
530
490
460
430
400
370
430
400
370
310
280
630
620
560
510
480
490
430
420
M16
Motor speed
( rpm )
1350
1250
1250
1150
1070
1050
980
920
1050
980
920
920
800
1370
1360
1270
1180
1110
1150
1020
1000
Air flow rate
( m3/h )
670
610
610
550
500
490
450
410
490
450
410
410
340
690
680
620
560
510
550
480
460
8-1-7. Outdoor Fan Control (DC Fan Motor)
Although the outdoor fan motor drives the outdoor fan by non-step variable system of the revolution speed, the
revolution speed is restricted to three steps on the convenience of controlling.
If a strong wind is lashing outside of the room, the operation may be continued as the outdoor fan stops in order
to protect the outdoor fan motor.
If a fan lock occurred due to entering of foreign matter, the air conditioner stops and an alarm is displayed.
<COOL, DRY>
Table 8-1-3
Compressor revolution (rps)
TO ≥ 38°C
Outdoor temp.
sensor
1 to 2 units
TO < 38°C
TO
3 to 4 units
TO
≥
38°C
ECONO.
operation
TO < 38°C
TO is abnormal
20.3
390 (rpm)
390 (rpm)
390 (rpm)
390 (rpm)
390 (rpm)
500 (rpm)
~ 50.3
700 (rpm)
640 (rpm)
500 (rpm)
640 (rpm)
500 (rpm)
640 (rpm)
~ 62.8
700 (rpm)
640 (rpm)
640 (rpm)
640 (rpm)
500 (rpm)
640 (rpm)
~ 33.3
~ 33.9
640 (rpm)
640 (rpm)
500 (rpm)
500 (rpm)
500 (rpm)
640 (rpm)
640 (rpm)
500 (rpm)
500 (rpm)
640 (rpm)
63.4 ~
700 (rpm)
700 (rpm)
700 (rpm)
640 (rpm)
500 (rpm)
640 (rpm)
<HEAT>
Table 8-1-4
Compressor revolution (rps)
Outdoor temp. sensor
TO ≥ 5°C
TO
TO < 5°C
TO ≥ 5°C
ECONO. operation
TO < 5°C
TO is abnormal
20.3
390 (rpm)
500 (rpm)
390 (rpm)
390 (rpm)
390 (rpm)
8-2. Description of Operation Circuit
• Turning [ON] the breaker flashes the operation lamp.
This is the display of power-ON (or notification of power failure).
• When pushing [START/STOP] button of the remote controller, receive sound is issued from the main unit, and
the next operations are performed together with opening the vertical air flow louvers.
• This mode is only for the cooling only model.
• Once the setting is made, the operation mode is
memorized in the microcomputer so that the same
operation can be effected thereafter simply by
pushing [START/STOP] button.
• When the FAN button is set to the AUTO position,
the indoor fan motor operates as shown in Fig. 82-1. When the FAN SPEED button is set to LOW,
MED, or HIGH, the motor operates with a constant
air flow.
• ECONO. mode cannot be set.
Set
temp.
(Room temp.) – (Set temp.)
˚C
8-2-1. Fan Only Operation
(The Remote controller MODE Button
is Set to the FAN ONLY Operation)
+3
M+
+2.5
*1
+2
*1
+1.5
*1
+1
L–
+0.5
0
(Set temp.) 25˚C
NOTE :
*1: Calculated from difference in motor speed of M+
and L–, and controlled.
Fig. 8-2-1 Auto setting of air flow
– 53 –
8-2-2. Cooling Operation
(The Remote controller MODE Button
is Set to the COOL Position)
Set
temp.
˚C
+3
+2.5
+2
+1.5
+1
+0.5
0
–0,5
M+
*1
*1
*1
L–
(2) Prevent-freezing control
If temperature of indoor heat exchanger detected
by the indoor heat exchanger sensor is 5°C or
lower, compressor motor speed is gradually
lowered to prevent freezing of the indoor heat
exchanger. If temperature is 7°C or higher, return
the operation to the above item (1).
(3) Current release control
The input current of compressor and outdoor fan
motor (Precisely inverter main circuit control
section) which occupy most of air conditioner
input is detected by the outdoor current sensor,
and compressor motor speed is gradually lowered
so that current value does not exceed 11.5A if
current value exceeds 11.5A. When the current
value lowers to 11.0A, return the operation to the
above item (1).
In normal
operation
Current value
(Room temp.) – (Set temp.)
• Once the setting is made, the operation mode is
memorized in the microcomputer so that the same
operation can be effected thereafter simply by
pushing [START/STOP] button.
• A cooling operation signal is transmitted to outdoor
unit.
• The indoor fan motor operates as shown in Fig.82-2 when FAN button is set to AUTO.
• The motor operates with a constant air flow when
the FAN button is set to LOW, MED, or HIGH.
• The outdoor unit controls the outdoor fan relay
R01, R02 and R03, and the compressor motor
speed according to the operation command signal
sent from the indoor unit.
(1) Cooling capacity control
• The cooling capacity and room temperature
are controlled by changing the compressor
motor speed according to both the difference
between the temperature detected by the room
temperature sensor and the temperature set by
TEMP button and also any change in room
temperature.
• When compressor has been activated or
reactivated, it operates with Max. 33 rps for 2
minutes and with Max. 57 rps from 2 to 4
minutes passed.
• When room temperature is lower than set
temperature and indoor fan motor is operated
at fan speed L– as shown in Fig. 8-2-2 while
the outdoor unit stops.
NOTE :
*1: Calculated from difference in motor speed of M+
and L–, and controlled.
Fig. 8-2-2 Setting of air flow [Air Flow AUTO]
Comp. motor
speed down
14.2
Comp. motor
speed keep
13.7
Normal control
Fig. 8-2-3
(4) Outdoor temperature release control
The outdoor temperature release is controlled by
changing the current release points 14.2 and 13.7
in the above item according to temperature
detected by the outdoor temperature sensor.
For example, if the outdoor temperature is 43°C,
the value of current release points becomes 9.6A.
– 54 –
(5) Limit for maximum compressor motor speed
by indoor fan speed
When outdoor temperature sensor detected
32°C or lower, and indoor heat exchanger
sensor detected 17°C or lower, the maximum
compressor motor speed is limited by the indoor
fan speed.
For example, when 1 unit only operates, the
compressor motor speed is limited as described
in the table below.
Table 8-2-1
Air flow
rate
M10
(rps)
M13
(rps)
M16
(rps)
HIGH
32
48
54
M+
29
42
46
MED
24
28
38
L
20
20
30
L–
20
20
30
UL
20
20
20
SUL
20
20
20
(6) Louver control
The vertical air flow louvers are automatically set
to horizontal or cool memory position.
When temperature of indoor heat exchanger
becomes 5°C or lower by the prevent-freezing
control and the compressor is turned off, the
vertical air flow louvers close once and then
return to the position of previous time.
TD
(˚C)
120
115
111
108
101
(7) Discharge temperature control
The discharge temperature of refrigerant gas
from the compressor is detected by the discharge temperature sensor, and controls operating compressor motor speed.
1) Control 1 (A zone) : Normal operation zone
When TD detect value is 101°C or lower, the
operation is performed with operating motor
speed instructed by the serial signal.
2) Control 2 (B zone) : Slow-up zone of motor
speed
When TD detect value is 101°C or higher,
operating motor speed is slowly up.
3) Control 3 (C zone) : Keep zone
When TD detect value is 108°C or higher,
operating motor speed is not changed if
raising operation speed.
4) Control 4 (D zone) : Slow down zone of motor
speed
When TD detect value is 111°C or higher,
operating motor speed is slowly down.
5) Control 5 (E zone) : Normal down of motor
speed
When TD detect value is 115°C or higher,
operating motor speed is down.
6) Control 6 (F zone) : Operation stop zone
If TD detect value exceeds 120°C during
operation, stop the operation immediately.
Then, restart the operation when TD detect
value becomes 108°C or lower.
Zone
F
Operation stop zone
E
Normal down zone of motor speed
D
Slow down of motor speed
C
Keep zone : Motor speed is not changed.
B
Slow-up zone of motor speed
A
Normal operation zone
Fig. 8-2-4 Compressor motor speed control
– 55 –
Release of motor speed
(8) ECONO. operation control
When the ECONO. button of the remote controller is pushed, quiet and mild operation is performed by
restraining air flow and operating motor speed.
1) Indoor air flow is controlled between SUL and L– (Low air (–)).
2) Setting M10 at 20 rps, M13 at 20 rps and M16 at 20 rps as the maximum operating compressor motor
speed, the minimum capacity operation range is widened every 1 hour and 2 hours have passed after
ECONO. operation had started.
3) Maximum operating compressor motor speed lowers up to 37 rps when the ECONO. instruction is sent
from even a room.
1 unit
(Room temp.) – (Set temp.)
Compressor motor speed
Air volume
M10
M13
M16
L–
20 rps
20 rps
20 rps
(L– + UL)/2
20 rps
20 rps
20 rps
SUL
20 rps
20 rps
20 rps
2 units
3 units
4 units
33 rps
37 rps
32 rps
3.5
20 to 33 rps 31 to 37 rps 31 to 32 rps
3
2.5
2
1.5
20 rps
31 rps
31 rps
1
0,5
1H
2H
Time
Fig. 8-2-5
8-2-3. DRY Operation
(The Remote controller MODE Button
is Set to the DRY Position)
(Room temp.) – (Set temp.)
• Once the setting is made, the operation mode is
memorized in the microcomputer so that the same
operation can be effected thereafter simply by
pushing [START/STOP] button.
• Dry operation signal is transmitted to outdoor unit.
• The Cooling operation giving priority to dehumidifying, which restrains the indoor fan speed and
compressor motor speed, is performed.
• The indoor fan motor operates as shown in Fig. 82-6. (Fan speed is AUTO only.)
• The outdoor unit controls the outdoor fan relay
R01, R02 and R03, and the compressor motor
speed according to the operation command signal
sent from the indoor unit.
+2.5
Set
temp.
+2.0
L–
+1.5
*1
+1.0
SUL
+0.5
0
–0.5
NOTE :
*1 : Middle motor speed between L– and SUL
Fig. 8-2-6 Setting of air flow
– 56 –
(1) Dehumidifying-preferential Cooling capacity
control
• The cooling capacity and room temperature are
controlled by changing the compressor motor
speed according to both the difference between
the temperature detected by the room temperature
sensor and the temperature set by TEMP button
and also any change in room temperature.
• When the air conditioner operates in Dry mode, the
maximum compressor motor speed is restricted.
M10 : Max. 20 rps
M13 : Max. 20 rps
M16 : Max. 22 rps
While multiple indoor units operate, compressor
motor speed is calculated in the outdoor unit to
operate.
• When room temperature is lower than set temperature, indoor fan motor is operated at fan speed SUL
as shown in Fig. 8-2-6 while the outdoor unit stops.
• ECONO. mode cannot be set.
• Other controls than the above-mentioned controls
are common to those of Cooling operation.
[Cold draft preventing control]
The upper limit of fan revolution speed is shown
below.
HIGH
44
43
33
32
31
30
Approximate
revolution speed
of HIGH and SUL
linear by Tc.
20
19
SUL*
A+4
A–8
A*2
A–8
FAN
AUTO
Starting
of FAN
Manual
3
SUL ( NOTE : *1)
Stop
Fig. 8-2-8 Cold draft preventing control
NOTES :
(1) Stops for 2 minutes after thermostat-OFF.
(2) 24°C when the set temp. is 24°C or more
Set temp. when the set temp. is below 24°C
(3) SUL : Super ultra low
8-2-4. Heating Operation
[In starting and in stability]
Transferring of heating operation signal from indoor
unit to outdoor unit starts.
The indoor fan motor operates by the room temperature when selecting “AUTO” of “FAN” as shown in
Fig. 8-2-7, and operates with a set air flow when
selecting “Low” to “High”.
However, to prevent cold draft, revolution speed of
the fan is restricted by indoor heat exchanger when
air flow is AUTO (Fig. 8-2-8) and starting of FAN
Manual.
In starting
• Until 12 minutes
passed after
operation start
FAN
AUTO
[Basic control]
(Room temp.) –
(Set temp.)
Set
temp.
0
–0.5
–1
–1.5
–2
FAN
• Room temp. ≤
Manual
Set temp. –4°C
LOW
* 12
*
–5.0
–5.5
HIGH
*1, *2 : Approximate revolution speed of M+ and L to
linear according to temperature.
Fig. 8-2-7 Setting of air flow
• When 12 to 25
minutes passed
after operation start
and room temp. is
higher than (set
temp. –3°C)
• When 25 minutes or
more passed after
operation start
• Room temp. >
Set temp. –3,5°C
The outdoor unit controls the outdoor fan based
upon the operation signal sent from the indoor unit,
and also controls revolution speed of the compressor motor.
The power coupler (IC20) for four-way valve is
turned on, and turned off in defrost operation.
M+
[FAN AUTO]
• When 12 to 25
minutes passed
after operation start
and room temp. is
3°C or lower than
set temp.
In stability
(1) Heating capacity control
Calculate the difference between temperature
detected by room temp. sensor every minute and
the set temp. set on “Temp. indicator” and
variation amount of room temp.
Then, obtain the correction amount of the
command signal, and correct the current frequency command signal.
– 57 –
(2) High-temp. release control
If temperature of the indoor heat exchanger
detected by the indoor heat exchanger sensor is
55°C or higher, compressor motor speed is
gradually lowered to prevent over-temp. rising of
compressed pressure.
If temperature becomes below 48°C, return to
above item (1).
c. The counted time is 34 minutes or more,
and status that temperature of the outdoor
heat exchanger detected by the outdoor
heat exchanger is –5°C or lower and
temperature lowered by 3.0 °C than the
minimum value of the outdoor heat exchanger during 10 to 15 minutes count
time continued for 3 minutes or more.
d. The counted time is 4 hours or more, and
status that temperature of the outdoor heat
exchanger detected by the outdoor heat
exchanger is 0°C or lower and temperature
lowered by 1.0 °C than the minimum value
of the outdoor heat exchanger during 10 to
15 minutes count time continued for 3
minutes or more.
e. If the following three conditions are satisfied, defrost operation (Timer defrost)
starts after heating operation for 48
minutes.
 Setting on remote control, HEAT
(mode), HIGH (Fan), 30°C (temp.).
(3) Current release control
The input current of compressor and outdoor fan
motor (Precisely inverter main circuit control
section) which occupy most of air conditioner
input is detected by the outdoor current sensor.
The compressor motor speed is lowered gradually according to the range of TO (outside air
temp.) if the input current exceeds the current
value determined in each zone as shown in Fig.
8-2-9 so that the input current does not exceed
the set value.
In case that the current lowered by approx. 0.3A to
0.5A than each set value, return to above item (1).
Outside air temp. (˚C)
‚ Room temp. is 19°C to 24°C, and
outside air temp. is 5°C or lower.
ƒ Defrost operation has been already
performed once.
TO
10.8A
16.0
2) Defrost operation
Operation of the compressor is stopped
once, turn off power coupler for four-way
valve after 10 seconds, and then exchange
the four-way valve.
After 20 seconds, restart operation of the
compressor. Turn off the outdoor fan just
when the compressor stopped.
15.5
10.3A
11.0
10.5
9.8A
Fig. 8-2-9
If temperature of the indoor heat exchanger
lowered than 38°C, stop the indoor fan.
(4) Defrost control
1) Detection of frost
In heating operation, time duration while the
compressor operates is counted, and defrost
operation starts by any condition described
below.
a. The counted time is 28 minutes or more,
and status that temperature of the outdoor
heat exchanger detected by the outdoor
heat exchanger is –20°C or lower continued for 3 minutes or more.
b. The counted time is 28 minutes or more,
and status that temperature of the outdoor
heat exchanger detected by the outdoor
heat exchanger is –8°C or lower and
temperature lowered by 2.5 °C than the
minimum value of the outdoor heat exchanger during 10 to 15-minutes count
time continued for 3 minutes or more.
3) Defrost reset
Resetting operation from defrost to heating is
performed when any one of the following
conditions is satisfied.
a. Temperature of the outdoor heat exchanger rose to +8°C or higher.
b. A status that temperature of the outdoor
heat exchanger is +5°C or higher continued for 80 seconds.
c. Defrost operation continued for 10 minutes.
In resetting defrost operation, the compressor
stops for 50 seconds if defrost has started
under condition a. to d. in item 1), but the
compressor is reset to heating operation
keeping operated if defrost has started under
condition e. in item 1).
– 58 –
(5) Louver control
The vertical air flow louvers are automatically set
to heating position or heat memory position.
When the compressor is turned off by high-temp.
release control, the vertical air flow louvers close
once and then return to the position of previous
time.
8-3. Temporary Operation
• Temporary Auto operation, existence of Auto
Restart, and Temporary Cooling operation can be
set by the TEMPORARY button of the indoor
controller.
8-2-5. Auto Operation
(1) As shown in Fig. 8-2-10, the operation mode
(COOL, DRY, HEAT) is selected according to the
outside temperature when the operation has
started.
The operation in Fan mode continues until an
operation mode is selected.
If the room temperature is 20°C or higher when
“AUTO” operation started within 2 hours after
“HEAT” operation had stopped, select an operation mode after Fan operation of ultra low fan.
In AUTO operation, the set temperature of each
operation can be corrected by the remote
controller in the range of △Ts = ± 5°C.
TEMPORARY button
Fig. 8-3-2
Outdoor
temp.
(˚C)
Powerful Cool mode
32
TEMPORARY button
Control
OFF → ON
Temporary Auto operation start
After pushing button
for 3 seconds
Auto Restart control select
After pushing button
for 10 seconds
Temporary Cooling
operation start
Cool mode
22
8-3-1. Temporary Auto Operation
Fan mode
20
Heat mode
Fig. 8-2-10
(2) After selecting the operation mode (COOL, DRY,
HEAT), select an operation mode again when a
status that the compressor was turned off by the
room temperature or outside air temperature
continues for 15 minutes.
(3) After selecting DRY operation, a status that the
room temperature is the set temp. –2°C continues for 15 minutes, select an operation mode
again.
(4) Powerful Cool mode control
When the outside temperature is above 32°C
and indoor temperature is above 28°C, select
Cool mode control. In Cool mode, the air flow
louver directs downward. When the room temperature gains access to the set temperature, it
becomes cool memory position.
• When the TEMPORARY button is pushed, the
Auto operation with set temperature fixed at 24°C
starts. Controlling is same as that of Auto operation by the remote controller.
• When the TEMPORARY button is pushed again,
the operation stops.
• During Temporary Auto operation, operation by the
remote controller is accepted.
• Using the Auto Restart function, the Temporary
Auto operation starts when power failure is reset.
8-3-2. Temporary Cooling Operation
• When the TEMPORARY operation button keeps
pushed for 10 seconds, Cooling operation of which
compressor motor speed and the indoor fan speed
are fixed starts.
Compressor motor speed : 24.5 rps
Indoor fan speed : Low
• When the TEMPORARY operation button is
pushed again, the operation stops.
• Auto Restart function is unavailable.
– 59 –
8-4. Auto Restart Function
8-4-1. How to Set the Auto Restart
This unit is equipped with an Automatic restarting
facility which allows the unit to restart and resume
the set operating conditions in the event of a power
supply shutdown without the use of the hand
control.
The operation will resume without warning three
minutes after the power is restored.
The Auto Restart function is set not to work on
shipment from the factory, and so it is necessary to
set it to function as required.
To set the Auto Restart function, proceed as follows:
Access the TEMPORARY button located in the lower
right hand corner beneath the hinged front panel of
the indoor unit (please refer to section on PARTS
NAME). The power supply to the unit must be on the function will not be set if the power is off.
To enable the Auto Restart function, push the
TEMPORARY button continuously for three seconds.
The unit will acknowledge the setting and beep three
times. The system will now restart automatically.
The above Auto Restart settings can be carried out:
• When the system is stand-by (not operating)
Motion
Operation
Push the TEMPORARY button
continuously more than three
seconds.
0
3S
Stand-by
↓
The system starts to operate.
↓ about three seconds after
The unit beeps three times.
↓
The system is operating.
The green light goes on.
The orange light goes on.
If the system is not required to run at this time, push the TEMPORARY button once more or use the remote controller and the unit will
stop.
TEMPORARY button
• When the system is operating
Operation
Motion
Push the TEMPORARY button
continuously more than three
seconds.
0
3S
TEMPORARY button
Operating
↓
The system stops to operate.
↓ about three seconds after
The unit beeps three times.
↓
The system stops.
The green light goes on.
The green light goes off.
If the system is not required to stop at this time, use the remote
controller and to restart.
During subsequent operation, the orange light goes on.
• The Auto Restart function will not accept an instruction if timer operation with the remote controller is selected.
(Please refer to the section on setting the timer or setting the louver.)
• During louver swing (AUTO) operation, after restart by the Auto Restart function the louver swing stops.
– 60 –
8-4-2. How to Cancel the Auto Restart
To cancel the Auto Restart function, proceed as follows:
Repeat the setting procedure: the unit will acknowledge the instruction and beep three times.
The system will now be required to manually restart with the remote controller after the main supply is turned off.
Cancellation is carried out:
• When the system is stand-by (not operating)
Operation
Motion
Push the TEMPORARY button
continuously more than three
seconds.
0
3S
Stand-by
↓
The system starts to operate.
↓ about three seconds after
The unit beeps three times.
↓
The system is operating.
The orange light goes on.
The green light goes on.
If the system is not required to run at this time, push the TEMPORARY
button once more or use the remote controller and the unit will stop.
TEMPORARY button
• When the system is operating
Operation
Motion
Push the TEMPORARY button
continuously more than three
seconds.
0
3S
TEMPORARY button
Operating
↓
The system stops to operate.
↓ about three seconds after
The unit beeps three times.
↓
The system stops.
The orange light goes on.
The orange light goes off.
If the system is not required to stop at this time, use the remote
controller and to restart.
During subsequent operation, the green light is lighting.
8-4-3. In Case of Power Failure during the Timer Operation
(1) If ON-TIMER operation is reserved with setting of Auto Restart operation, it is cancelled with power failure.
(The OPERATION lamp on the main unit goes on and off to inform of power failure.) In that case, try to
reserve ON-TIMER operation once again.
(2) If OFF-TIMER operation is reserved without setting of Auto Restart operation, the reservation is cancelled
with power failure. (The OPERATION lamp on the main unit goes on and off to inform of power failure.) In
that case, try to reserve OFF-TIMER operation. When Auto Restart operation is set, OFF-TIMER reservation is also cancelled with power failure.
– 61 –
8-5. Remote control
$
8-5-1. Remote control and its functions
RAS-M10UKCV, RAS-M13UKCV, RAS-M16UKCV
1 Infrared signal emitter
Transmits a signal to the indoor unit.
2 START/STOP button
Press the button to start operation.
(A receiving beep is heard.)
Press the button again to stop operation.
(A receiving beep is heard.)
If no receiving sound is heard from the indoor unit,
press the button twice.
3 Mode select button (MODE)
Press this button to select a mode.
Each time you press the button, a mode is
selected in a sequence that goes from A : Auto
changeover control, : Cool, : Dry,
: Heat, : Fan only, and back to A.
(A receiving beep is heard.)
4 Temperature button (
)
,.......The set temperature is increased up to 30°C.
9.......The set temperature is dropped down to 17°C.
(A receiving beep is heard.)
5 Fan speed button (FAN)
Press this button to select fan speed. When you
select AUTO, the fan speed is automatically
adjusted according to the room temperature.
You can also manually select the desired fan
speed from among five settings.
, MED
,
(LOW , LOW+
MED+
, HIGH
)
(A receiving beep is heard.)
6 Auto louver button (SWING)
Press this button to swing the louver.
(A receiving beep is heard.)
Press the FIX button to stop the louver swinging.
(A receiving beep is heard.)
7 Set louver button (FIX)
Press this button to adjust the air flow direction.
(A receiving beep is heard.)
8 Off timer button (OFF)
Press this button to set the OFF timer.
9 On timer button (ON)
Press this button to set the ON timer.
! Reserve button (SET)
Press this button to reserve time settings.
(A receiving beep is heard.)
" Cancel button (CLR)
Press this button to cancel ON timer and OFF
timer. (A receiving beep is heard.)
# High power button (Hi POWER)
Press this button to start the high power
operation.
%
&
(
)
~
– 62 –
Memory button (MEMO)
Press this button to stand by memorizing the
settings.
Press the button again for more than 4 seconds
to memorize the setting indicated on the remote
control and mark is indicated.
Automatic operation button (AUTO)
Press this button to operate the air conditioner
automatically.
(A receiving beep is heard.)
ECO timer button (ECO)
Press this button to start the ECO timer (OFF
timer) operation.
You can select the OFF timer time from among
four settings (1,3,5 or 9 hours).
FILTER button
Press this button to turn off the filter cleaning
lamp on the indoor unit.
Press this button after cleaning the air filter.
PRESET button
Press this button to operate the air conditioner
according to settings memorized by the MEMO
button.
TIMER button
Use this button to change the clock, ON timer,
and OFF timer times.
To forward the time, press the “TIMER ” button.
To set back the time, press the “TIMER ” button.
1
AUTOA
A
B
4
PRESET
13
17
2
START/STOP
5
FAN
6
SWING
7
9
8
AUTO
ECO
Hi-POWER
TIMER
FIX
ON
MODE
OFF
MEMO
SET
CLR
FILTER
RESET CLOCK CHECK
16
3
14
15
12
13
17
11
10
18
8-5-2. Names and functions of indications on remote control
Display
All indications, except for clock time indication, are indicated by pressing the START/STOP button.
1 Transmission mark
This transmission mark (,) indicates when the remote control transmits signals to the indoor unit.
2 Mode display
Indicates the current operation mode.
3 1
2 8
4
(AUTO : Automatic control, A : Auto changeover control, : Cool,
: Dry, : Heat, : Fan only)
3 Temperature display
Indicates the temperature setting (17°C to 30°C).
AUTOA
When you set the operating mode to : Fan only, no temperature
A
B
setting is indicated.
4 Louver operation display
Indicates the louver positioning and operation.
Swing
Five selectable positions , , , , Automatic
5 FAN speed display
Indicates the selected fan speed. AUTO or one of five fan speed levels
9 7
6
5
(LOW , LOW+
, MED+
, HIGH
)
, MED
can be indicated.
• In the illustration, all indications
Indicates AUTO when the operating mode is either AUTO or : Dry.
are indicated for explanation.
6 TIMER and clock time display
During operation, only the
The time set for timer operation or clock time is indicated.
relevant indications will be
The present time is always indicated except for TIMER operation.
indicated on the remote control.
7 Hi POWER display
Indicates when the Hi POWER operation starts.
Press the Hi POWER button to start and press it again to stop
A
A
the operation.
B
8
(MEMORY) display
Flashes for 4 seconds when the MEMO button is pressed during
operation.
mark is indicated when keeping the button depressed for more
than 4 seconds while the mark is flashing.
Press another button to turn off the mark.
9 ECO TIMER display
Indicates when the ECO TIMER is in operation.
Each time you press the ECO button, the display changes in the sequence of 1,3,5 or 9h.
– 63 –
9. INSTALLATION PROCEDURE
9-1. Safety Cautions
For general public use
Power supply cord of parts of appliance for Outdoor use shall be more than polychloroprene sheathed flexible cord (design H07RN-F), or cord
designation 245IEC66. (1.5 mm2 or more)
CAUTION
New Refrigerant Air Conditioner Installation
• THIS AIR CONDTIONER ADOPTS THE NEW HFC REFRIGERANT (R-410A) WHICH DOES NOT DESTROY OZONE LAYER.
R-410A refrigerant is apt to be affected by impurity such as water, oxidizing membrane, and oils because pressure of R-410A refrigerant
is approx. 1,6 times of refrigerant R-22. Accompanied with adoption of the new refrigerant, refrigerating machine oil has been also changed.
Therefore, during installation work, be sure that water, dust, former refrigerant, or refrigerating machine oil does not enter into the refrigerating
cycle or new-refrigerant air coditioner.
To prevent mixin of refrigerant or refrigerating machine oil, the sizes of connecting sections of charging port of the main unit or installation tools are
different from those for the coventional refrigerant. Accordingly, the exclusive tools are required for the new refrigerant (R-410A) as shown below.
For conecting pipes, use new and clean piping materials with high pressure-tight force, which were made fro R-410A only, so that water or dust
does not enter. Moreover, do not use the existing piping because there are problems about pressure-tight forec and inner impurity in the existing
piping.
CAUTION
TO DISCONNECT THE APPLIANCE FROM THE MAIN POWER SUPPLY.
This appliance must be connected to the main power supply by means of a circuit breaker or a switch with a contact separation of at least 3 mm.
The installation fuse (25A D type
) must be used for the power supply line of this air conditioner.
DANGER
• FOR USE BY QUALIFIED PERSONS ONLY.
• TURN OFF MAIN POWER SUPPLY BEFORE ATTEMPTING ANY ELECTRICAL WORK. MAKE SURE ALL POWER SWITCHES ARE OFF.
FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK.
• CONNECT THE CONNECTING CABLE CORRECTLY. IF THE CONNECTING CABLE IS CONNECTED BY WRONG WAY, ELECTRIC PARTS
MAY BE DAMAGED.
• CHECK THE EARTH WIRE IS NOT BROKEN OR DISCONNECTED BEFORE INSTALLATION.
• DO NOT INSTALL NEAR CONCENTRATIONS OF COMBUSTIBLE GAS OR GAS VAPORS.
FAILURE TO FOLLOW THIS INSTRUCTION CAN RESULT IN FIRE OR EXPLOSION.
• TO PREVENT OVERHEATING THE INDOOR UNIT AND CAUSING A FIRE HAZARD, PLACE THE UNIT WELL AWAY (MORE THAN 2 M)
FROM HEAT SOURCES SUCH AS RADIATORS, HEAT REGISTORS, FURNACE, STOVES, ETC.
• WHEN MOVING THE AIR-CONDITIONER FOR INSTALLING IT IN ANOTHER PLACE AGAIN, BE VERY CAREFUL NOT TO GET THE
SPECIFIED REFRIGERANT WITH ANY OTHER GASEOUS BODY INTO THE REFRIGERATION CYCLE. IF AIR OR ANY OTHER GAS IS
MIXED IN THE REFRIGERANT, THE GAS PRESSURE IN THE REFRIGERATION CYCLE BECOMES ABNORMALLY HIGH AND IT
RESULTINGLY CAUSES BURST OF THE PIPE AND INJURIES ON PERSONS.
• IN THE EVENT THAT THE REFRIGERANT GAS LEAKS OUT OF THE PIPE DURING THE INSTALLATION WORK, IMMEDIATELY LET
FRESH AIR INTO THE ROOM. IF THE REFRIGERANT GAS IS HEATED BY FIRE OR SOMETHING ELSE, IT CAUSES GENERATION OF
POISONOUS GAS.
WARNING
• Never modify this unit by removing any of the safety guards or by by-passing any of the safety interlock switches.
• Do not install in a place which cannot bear the weight of the unit.
Personal injury and property damage can result if the unit falls.
• Before doing the electrical work, attach an approved plug to the power supply cord.
And, make sure the equipment to be earthed.
• Appliance shall be installed in accordance with national wiring regulations.
If you detect any damage, do not install the unit. Contact your Toshiba dealer immediately.
CAUTION
• Exposure of unit to water or other moisture before installation will result in an electrical short.
Do not store in a wet basement or expose to rain or water.
• After unpacking the unit, examine it carefully for possible damage.
• Do not install in a place that can increase the vibration of the unit. Do not install in a place that can amplify the noise level of the unit or where
noise and discharged air might disturb neighbors.
• To avoid personal injury, be careful when handling parts with sharp edges.
• Please read this installation manual carefully before installing the unit. It contains further important instructions for proper installation.
– 64 –
9-1-1. Installation/Servicing Tools
Changes in the product and components
In the case of an air condition using R-410A, in order to prevent any other refrigerant from being charged accidentally, the service port diameter
of the outdoor unit control valve (3 way valve) has been changed. (1/2 UNF 20 threads per inch)
• In order to increase the pressure resisting strength of the refrigerant piping, flare processing diameter and size of opposite side of flare nuts
has been changed. (for copper pipes with nominal dimensions 1/2 and 5/8)
New tools for R-410A
New tools for R-410A
Applicable to R-22 model
Changes
Gauge manifold
As pressure is high, it is impossible to measure by means of conventional gauge.
In order to prevent any other refrigerant from being charged, each port diameter
has been changed.
Charge hose
In order to increase pressure resisting strength, hose materials and port size
have been changed (to 1/2 UNF 20 threads per inch).
When purchasing a charge hose, be sure to confirm the port size.
Electronic balance for
refrigerant charging
As pressure is high and gasification speed is fast, it is difficult to read the
indicated value by means of charging cylinder, as air bubbles occur.
Torque wrench
(nominal diam. 1/2, 5/8)
The size of opposite sides of flare nuts have been increased. Incidentally,
a common wrench is used for nominal diameters 1/4 and 3/8.
Flare tool
(clutch type)
By increasing the clamp bar's receiving hole, strength of spring in the tool has
been improved.
Gauge for projection adjustment
Used when flare is made by using conventional flare tool.
Vacuum pump adapter
Connected to conventional vacuum pump. It is necessary to use an adapter to
prevent vacuum pump oil from flowing back to the charge hose.
The charge hose connecting part has two ports-one for conventional refrigerant
(7/16 UNF 20 threads per inch) and one for R410A. If the vacuum pump oil
(mineral) mixes with R-410A a sludge may occur and damage the equipment.
Gas leakage detector
Exclusive for HFC refrigerant.
• Incidentally, the “refrigerant cylinder” comes with the refrigerant designation (R-410A) and protector coating in the U.S's ARI specified rose color
(ARI color code: PMS 507).
• Also, the “charge port and packing for refrigerant cylinder” require 1/2 UNF 20 threads per inch corresponding to the charge hose's port size.
– 65 –
9-2. Indoor unit
65 mm or more
RAS-M10UKV-E3,RAS-M13UKV-E3,RAS-M16UKV-E3
RAS-M10UKCV-E3,RAS-M13UKCV-E3,RAS-M16UKCV-E3
170
or m mm
ore
For the rear left and left piping
Hook
1 Installation
Wall
plate
Hoo
k
Air
170
mm
or m
ore
Insert the cushion between
the indoor unit and wall,
and tilt the indoor unit for better
operation.
filte
r
Do not allow the drain hose to
get slack.
(At
tac
h to
Shield pipe
the
fron
t pa
5 Zeolite filter
nel
)
Cut the piping hole
sloped slightly
6 Bioenzyme filter
8 Flat head wood screw
Before installing the wireless
remote control
• With the remote control cover
open, load the batteries supplied
correctly, observing their
polarity.
Make sure to run the drain hose
sloped downward.
2 Wireless remote
4 Remote control holder
The auxiliary piping can be
connected the left, rear left,
rear right, right, bottom right or
bottom left.
control
2 Wireless remote control
Cover
Insulate the refrigerant
pipes separately with insulation,
not together.
3 Batteries
Right
Rear right
Rear left
Bottom right
Left
Bottom left
6 mm thick heat resisting
polyethylene foam
9-2-1. Accessory and Installation Parts
Part
No.
Part name (Q'ty)
1
Part
No.
4
2
8
6
Battery x 2
Flat head wood screw ∅3.1 x 16 s x 2
B
9
Bioenzyme filter x 1
Name
This model is not equipped with an extension drain hose.
Owner's manual
Option :
For the extension drain hose, use an optionally available
RB-821SW or commercially available one.
Installation manual
Mounting screw ∅4 x 25 s x 6
Zeolite filter x 1
Wireless remote control x 1
Part name (Q'ty)
7
5
3
Part
No.
Remote control holder x 1
Installation plate x 1
Others
Part name (Q'ty)
– 66 –
B Label x 1
Mounting the Installation Plate
• A place which provides the spaces around the indoor unit as shown in
the above diagram.
• A place where there is no obstacle near the air inlet and outlet.
• A place which allows easy installation of the piping to the outdoor unit.
• A place which allows the front panel to be opened.
• The indoor unit shall be installed as top of the indoor unit comes to at
least 2m height.
Also it must be avoided to put anything on the top of the indoor unit.
For installation of the indoor unit, use the paper pattern on the back.
Anchor bolt holes
62
Hook
82.5
170
85
CAUTION
1
• Direct sunlight to the indoor unit wireless receiver should be
avoided.
• The microprocessor in the indoor unit should not be too close to
r-f noise sources.
(For details, see the owner's manual.)
7 Mounting screw
Indoor unit
Weight
Fig. 9-2-3
• A place where there are no obstacles such as a curtain that may block
the signal from the indoor unit.
• Do not install the remote control in a place exposed to direct sunlight
or close to a heating source, such as a stove.
• Keep the remote control at least 1 m apart from the nearest TV set or
stereo equipment. (This is necessary to prevent image disturbances or
noise interference.)
• The location of the remote control should be determined as shown
below.
(Top view)
45°
1. Securely fit the installation plate onto the wall by screwing it in the
upper and lower parts to hook up the indoor unit.
2. To mount the installation plate on a concrete wall with anchor bolts,
utilize the anchor bolt holes as illustrated in the above figure.
3. Install the installation plate horizontally in the wall.
CAUTION
*7m
m
m
Indoor unit 5
7m
When the installation plate is directly mounted on the wall
When installing the installation plate with a mounting screw, do not
use the anchor bolt hole. Otherwise the unit may fall down and result
in personal injury and property damage.
5
Indoor unit
Pipe hole
Pipe hole
Remote controller
(Side view)
Installation
plate
Hook
Hook Thread
2 m or more from floor
9-2-2. Installation Place
45°
°
75
Reception
range
Remote
control
Reception range
Anchor bolt
Remote control
Projection
15 mm or less
5 mm dia. hole
* : Axial distance
Fig. 9-2-1
7 Mounting
screw
∅4 x 25 s
9-2-3. Cutting a Hole and Mounting Installation Plate
Clip anchor
(local parts)
Cutting a Hole
Fig. 9-2-4
When install the refrigerant pipes from the rear.
CAUTION
Failure to firmly install the unit may result in personal injury and
property damage if the unit falls.
• In case of block, brick, concrete or similar type walls, make 5 mm dia.
holes in the wall.
• Insert clip anchors for appropriate 7 mounting screws.
Pipe
hole
∅65 mm
NOTE
The center of the pipe
hole is above the arrow.
• Install the installation plate using 4 to 6 pieces of mounting screw
securing four corners with screws.
100 mm
Fig. 9-2-2
9-2-4. Electrical Work
1. After determining the pipe hole position on the mounting plate (A)
drill the pipe hole (∅65 mm) at a slight downward slant to the outdoor
side.
1. The supply voltage must be the same as the rated voltage of the air
conditioner.
2. Prepare the power source for exclusive use with the air conditioner.
NOTE
NOTE
• When drilling a wall that contains a metal lath, wire lath or metal plate,
be sure to use a pipe hole brim ring sold separately.
• Wire type : More than H07RN-F or 245IEC66 (1.0 mm2 or more)
– 67 –
9-2-6 Piping and Drain Hose Installation
CAUTION
Piping and Drain Hose Forming
• This appliance can be connected to the mains in either of the
following two ways.
(1) Connection to fixed wiring :
A switch or circuit breake which disconnects all poles and
has a contact separation of at least 3 mm must be incorporate in the fixed wiring. An approved circuit breaker or
switches must used.
(2) Connection with power supply plug :
Attach power supply plug with power cord and plug it into
wall outlet. An approved power supply cord and plug must
be used.
* Since dewing results in a machine trouble, make sure to insulate both
the connecting pipes. (Use polyethylene foam as insulating material.)
Die-cutting
Front panel slit
Bottom left
Left
NOTE
• Perform wiring works so as to allow a generous wiring capacity.
Bottom right
9-2-5. Wiring Connection
Right
Piping preparation
Rear left
Changing
drain hose
Rear right
How to connect the connecting cable
Wiring of the connecting cable can be carried out without
removing the front panel.
1. Remove the air inlet grille.
Open the air inlet grille upward and pull it toward you.
2. Remove the terminal cover and cord clamp.
3. Insert the connecting cable (according to the local cords) into the pipe
hole on the wall.
4. Take out the connecting cable through the cable slot on the rear panel
so that it protrudes about 15 cm from the front.
5. Insert the connecting cable fully into the terminal block and secure it
tightly with screws.
6. Tightening torque :1.2 N·m (0.12 kgf·m)
7. Secure the connecting cable with the cord clamp.
8. Fix the terminal cover, rear plate bushing and air inlet grille on the
indoor unit.
1. Die-cutting Front panel slit
Cut out the slit on the left or right side of the front panel for the left or
right connection and the slit on the bottom left or right side of the front
panel for the bottom left or right connection with a pair of nippers.
2. Changing drain hose
For left connection, left-bottom connection and rear-left connection’s
piping, it is necessary to change the drain hose and drain cap.
How to remove the Drain Cap
Clip drain cap by needle-nose plier, and pull out.
Fig. 9-2-6
CAUTION
• Be sure to refer to the wiring system diagram labeled inside the
front panel.
• Check local electrical cords and also any specific wiring instructions or limitations.
How to install the Drain Hose
Firmly insert drain hose connecting part until hitting on a heat insulator.
Heat insulator
Drain hose
Fig. 9-2-7
How to fix the Drains Cap
1) Insert hexagonal wrench (4 mm) in a center head.
4 mm
Fig. 9-2-8
2) Firmly insert drains cap.
No gap
Do not apply lubricating oil (refrigerant
machine oil) when inserting the drain cap.
Application causes deterioration and
drain leakage of the plug.
Insert a hexagon wrench (4 mm)
Fig. 9-2-9
NOTE
• Use stranded wire only.
• Wire type : H07RN-F or more.
CAUTION
Fig. 9-2-5
Firmly insert the drain hose and drain cap; otherwise, water may leak.
– 68 –
9-2-6 Indoor Unit Fixing
In case of right or left piping
• After scribing slits of the front panel
with a knife or a making-off pin, cut
them with a pair of nippers or an
equivalent tool.
1. Pass the pipe through the hole in the wall, and hook the indoor unit on
the installation plate at the upper hooks.
2. Swing the indoor unit to right and left to confirm that it is firmly hooked
up on the installation plate.
3. While pressing the indoor unit onto the wall, hook it at the lower part
on the installation plate. Pull the indoor unit toward you to confirm that
it is firmly hooked up on the installation plate.
Slit
Fig. 9-2-10
In case of bottom right or bottom left piping
Hook here
1
• After scribing slits of the front panel
with a knife or a making-off pin, cut
them with a pair of nippers or an
equivalent tool.
1 Installation plate
2
Slit
Hook
Fig. 9-2-11
Press
(unhook)
Fig. 9-2-14
Left-hand connection with piping
Bend the connecting pipe so that it is laid within 43 mm above the wall
surface. If the connecting pipe is laid exceeding 43 mm above the wall
surface, the indoor unit may unstably be set on the wall. When bending
the connecting pipe, make sure to use a spring bender so as not to
crush the pipe.
• For detaching the indoor unit from the installation plate pull the indoor
unit toward you while pushing its bottom up at the specified parts.
Bend the connection pipe within a radius of 30 mm (Ø6.35) 40 mm
(Ø9.52).
Push
To connect the pipe after installation of the unit (figure)
(To the forefront of flare)
270 mm
170 mm
Push
Fig. 9-2-15
9-2-7 Drainage
Liquid side
Gas side
1. Run the drain hose sloped downwards.
NOTE
43 mm
Outward form of indoor unit
• Hole should be made at a slight downward slant on the outdoor side.
R30 or less (Ø6.35) R40 or less (Ø9.52) (Use polisin
(polyethylene core or the like for bending pipe.)
°
80
Do not rise the drain hose.
Do not form the drain hose into the
waved shape.
50 mm
or more
Use the handle of screwdriver, etc.
Fig. 9-2-12
NOTE
If the pipe is bent incorrectly, the indoor unit may unstably be set on the
wall.
After passing the connecting pipe through the pipe hole, connect the
connecting pipe to the auxiliary pipes and wrap the facing tape around
them.
CAUTION
• Bind the auxiliary pipes (two) and connecting cable with facing tape
tightly. In case of leftward piping and rear-leftward piping, bind the
auxiliary pipes (two) only with facing tape.
Do not put the
drain hose end
in the drainage
ditch.
Do not put the
drain hose end
into water.
Fig. 9-2-16
2. Put water in the drain pan and make sure that the water is drained out
of doors.
3. When connecting extension drain hose, insulate the connecting part
of extension drain hose with shield pipe.
Shield pipe
Drain hose
Indoor unit
Auxiliary pipes
Inside the room
Extension drain hose
Fig. 9-2-17
Connecting cable
CAUTION
Installation plate
Arrange the drain pipe for proper drainage from the unit.
Improper drainage can result in dew-dropping.
Fig. 9-2-13
• Carefully arrange pipes so that any pipe does not stick out of the
rear plate of the indoor unit.
• Carefully connect the auxiliary pipes and connecting pipes to each
other and cut off the insulating tape wound on the connecting pipe
to avoid double-taping at the joint, moreover, seal the joint with the
vinyl tape, etc.
• Since dewing results in a machine trouble, make sure to insulate
both the connecting pipes. (Use polyethylene foam as insulating
material.)
• When bending a pipe, carefully do it not to crush it.
This air conditioner has the structure
designed to drain water collected from
dew, which forms on the back of the
indoor unit, to the drain pan.
Therefore, do not store the power cord
and other parts at a height above the
drain guide.
Space for pipes
– 69 –
Wall
Fig. 9-2-18
Drain
guide
9-2-8. Setting of Remote Controller Selector
Switch
When two indoor units are installed in the
separated rooms, there is no need to change
the select switches.
(1) Stop the operation of the air conditioner and turn
turn off its main power supply.
(2) Pull the air inlet grille toward you to open it and
remove the air inlet grille.
(3) First open the horizontal louver and then remove
the front panel from the back body by pulling it
toward you.
Remote Controller Selector Switch
Position of Remote Control Selector Switch
• When two indoor units are installed in the
same room or adjacent two rooms, if operating
a unit, two units may receive the remote
controller signal simultaneously and operate. In
this case, the operation can be preserved by
setting either one indoor unit and remote
controller to B setting
(Both are set to A setting in factory shipment).
• The remote control signal is not received
when the settings of indoor unit and remote
controller are different.
• There is no relation between A setting/B
setting and A room/B room when connecting
the piping and cables.
1. Setting of remote controller switch at the
indoor unit side
How to remove the front cabinet
Fig. 9-2-20
How to mount the front panel
Push the front panel back in and make sure all hook
are locked.
Adhesion of B label (When setting to [B])
Be sure to affix the B label on the front panel same
as the below figure.
Fig. 9-2-21
Fig. 9-2-19
– 70 –
2. Setting of remote controller selector at the
remote controller side
[B] of the remote controller is displayed with
liquid crystal only when it is set to [B].
There is no display of [A].
9-2-9. Check and Test Operation
¨ 1. Check the unit is firmly hooked up on the
¨
• Enter the batter.
• Push the [CHK] button by something with thin
edge. ([00] is displayed.)
• If [MODE] button is pushed while pushing [CHK]
button, the small [B] is displayed at the right of the
setting temperature indication section.
* To reset [A] setting, push the [MODE] button
again while pusing the [CHK] button.
¨
¨
¨
¨
¨
installation plate.
2. Check the connecting pipes tightened
securely.
Confirm that there is no gas leakage.
3. Confirm that all connecting cables are
secured and correct.
4. Check the pipes insulation.
5. Check the drainage.
6. Connection of the grounding wire.
7. To switch the TEST RUN (COOL) mode, turn
the switch on.
To switch the TEST RUN (COOL) mode,
press TEMPORARY button for 10 sec.
(The beeper will make a short beep.)
3. Confirm the indoor unit can operate with
the changed setting of the remote controller.
B
B
TEMPORARY button
TEMPORARY
Fig. 9-2-23
PRESET
¨ 8. Operate the unit at cooling operation mode
START/STOP
FAN
MODE button
SWING
AUTO
ECO
Hi-POWER
TIMER
FIX
ON
MODE
OFF
for fifteen minutes or more.
Measure the temperature of the intake and
discharge air. Ensure the difference between
the intake temperature and the discharge one
is more, than 8°C.
MEMO
SET
CLR
NOTE: Three-minutes protection feature
[CHK] button
FILTER
RESET
CLOCK CHECK
¨
A protection feature prevents the air
conditioner from being activated for about 3
minutes when it is restarted immediately
after operation or when the power switch is
turned on.
9. Check the remote controller operation.
When finished the check and test operation,
make sure to return to REMOTE CONTROLLER.
(Push the temporary switch with once again.)
* The above remote controller is one for cooling
only model.
¨ 10. Explain to the customer on the correct usage
of air conditioner simple layman’s terms.
– 71 –
9-3. Outdoor Unit
CAUTION
9-3-1. Accessory and
Installation Parts
1. Install the outdoor unit without anything
blocking the air discharging.
2. When the outdoor unit is installed in a place
exposed always to a strong wind like a coast
or on a high story of a building, secure the
normal fan operation using a duct or a wind
shield.
3. Specially in windy area, install the unit to
prevent the admission of wind.
1
Owner's manual x 1
2
Strong
wind
Outdoor unit installation manual x 1
Fig. 9-3-1
SPECIFICATIONS
4. Installation in the following places may result
in trouble. Do not install the unit in such
places.
• A place full of machine oil.
• A place full of sulfide gas.
• A place where high-frequency waves are
likely to be generated as from audio
equipment, welders, and medical equipment.
3
Specifications x 1
9-3-2. Refrigerant Piping
• Piping kit used for the conventional refrigerant
cannot be used.
• Use copper pipe with 0.8 mm or more thickness.
• Flare nut and flare works are also different from
those of the conventional refrigerant. Take out the
flare nut attached to the main unit of the air conditioner, and use it.
9-3-4. Optional Installation Parts
(Local Supply)
A
9-3-3. Installation Place
• A place which provides the spaces around the
outdoor unit.
• A place where the operation noise and discharged
air do not disturb your neighbors.
• A place which is not exposed to a strong wind.
• A place which does not block a passage.
• When the outdoor unit is to be installed in an
elevated position, be sure to secure its feet.
• There must be sufficient spaces for carrying the
unit into and out of the site.
• A place where the drain water does not raise any
problem.
Parts name
Q’ty
Refrigerant piping
Liquid side : Ø6.35 mm
Gas side
: Ø9.52 mm or Ø12.7 mm
Each one
B
Pipe insulating material
(polyethylene foam, 6 mm thick)
C
Putty, PVC tapes
1
Each one
9-3-5. Optional Installation Parts
(Separate Sold)
Parts name
– 72 –
RB-M43RE
Reducer (Ø12.7 → Ø9.52)
RB-M34EE
Expander (Ø9.52 → Ø12.7)
• Flaring size : A (Unit : mm)
9-3-6. Refrigerant Piping Connection
A +0
- 0.4
Outer dia. of copper pipe
CAUTION
R410A
KEEP IMPORTANT 4 POINTS FOR PIPING
WORK
1. Take away dust and moisture.
(Inside of the connecting pipes)
2. Tight connection (between pipes and unit)
3. Evacuate the air in the connecting pipes using
VACUUM PUMP.
4. Check gas leak. (connected points)
R22
6.35
9.1
9.0
9.52
13.2
13.0
16.6
16.2
12.7
* In the case of flaring for R410A with the conventional flare tool, pull out it approx.
0.5 mm more than that for R22 to
adjust to the specified flare size.
The copper pipe gauge is useful
for adjusting projection margin size.
A
Fig. 9-3-4
Flaring
9-3-7. Installation
1. Cut the pipe with a pipe cutter.
Obliquity
Roughness
600mm or more
90˚
NOTE : For installation, at least 3 dimensions should
be kept free from obstacles (walls).
Warp
100m
from m or mo
re
wall
m or all
100emfrom w
r
o
m
Fig. 9-3-2
2. Insert a flare nut into the pipe, and flare the pipe.
As the flaring sizes of R410A differ from those of
refrigerant R22, the flare tools newly manufactured for R410A are recommended.
However, the conventional tools can be used by
adjusting projection margin of the copper pipe.
m or
600m
600m
from m or mo
re
wall
more
B
As shown in the figure, hang power cord
and connecting cable downward, and
take out it along piping connection port.
Fig. 9-3-3
Fig. 9-3-5
• Projection margin in flaring : B (Unit : mm)
Rigid (Clutch type)
R410A
R22
6.35
0 to 0.5 (Same as left)
1.0 to 1.5
0.5 to 1.0
9.52
0 to 0.5 (Same as left)
1.0 to 1.5
0.5 to 1.0
0 to 0.5 (Same as left)
1.0 to 1.5
0.5 to 1.0
12.7
600
Suction side
Conventional tool used
365
R410A tool used
Outer dia. of
copper pipe R410A
R22
Fixing bolt arrangement of outdoor unit
Diffuser
Imperial (Wing nut type)
Outer dia. of copper pipe
R410A
R22
6.35
1.5 to 2.0
1.0 to 1.5
9.52
1.5 to 2.0
1.0 to 1.5
2.0 to 2.5
1.5 to 2.0
12.7
Fig. 9-3-6
• Secure the outdoor unit with the fixing bolts
and nuts if the unit is likely to be exposed to a
strong wind.
• Use Ø8 mm or Ø10 mm anchor bolts and nuts.
– 73 –
15 m or less
1. Piping connections to the outdoor unit should be
arranged in the sequence A, B, C, D starting from
the bottom.
(For each piping connection, the gas pipe is on
the bottom and the liquid pipe is on the top.)
2. When multiple indoor units are to be connected
to the outdoor unit, make the ends of the pipes
and wires from each indoor unit to ensure that
they will be connected to the outdoor unit correctly.
(Problems caused by indoor units being connected to the outdoor unit incorrectly are very
common in multiple-unit installations.)
3. The length and height difference of the connecting pipes between the indoor and outdoor units
must be within the ranges indicated below.
• Total piping length :
4 units (A + B + C + D) Multi,
Non. Additional refrigerant .......... 70 m
3 units (A + B + C) Multi,
Non. Additional refrigerant .......... 50 m
• Minimum piping length :
A or B or C or D = 2 m or more
• Maximum indoor piping length :
C
A
A or B or C or D = 25 m or less
• Maximum piping height difference :
Outdoor
unit
A or B or C or D = 15 m or less
D
• Maximum piping/height
difference between 2 units
B
= 15 m or less
Fig. 9-3-7
Tightening connection
Align the centers of the connecting pipes and tighten
the flare nut as far as possible with your fingers.
Then tighten the nut with a spanner and torque
wrench as shown in the figure.
CAUTION
• Do not apply excess torque. Otherwise, the
nut may crack depending on the conditions.
(Unit : N·m)
Outer dia. of copper pipe
Tightening torque
Ø6.35 mm
14 to 18 (1.4 to 1.8 kgf•m)
Ø9.52 mm
33 to 42 (3.3 to 4.2 kgf•m)
Ø12.7 mm
50 to 62 (5.0 to 6.2 kgf•m)
• Tightening torque of flare pipe connections
Pressure of R410A becomes higher than that of R22.
(Approx. 1.6 times) Therefore, using a torque
wrench, tighten firmly the flare
Flare at
indoor
pipe connecting sections
unit side
which connect the indoor
and outdoor units up to the
specified tightening torque.
Incorrect connections may
cause not only a gas
leakage, but also a trouble
Flare at
of the refrigeration cycle.
outdoor
4. Connect 2 or more indoor units for heat pump.
5. If the outdoor units is to be mounted on a wall,
make sure that the platform supporting it is
sufficiently strong. The platform should be
designed and manufactured to maintain its
strength over a long period of time, and sufficient
consideration should be given to ensuring that the
outdoor unit will not fall.
6. When the outdoor unit is to be mounted high on a
wall, take particular care to ensure that parts do
not fall installer is protected.
7. When doing installation work on level ground, it is
usual to wiring and piping connections to the
indoor units. And/then make to the outdoor unit.
However if outdoor work is difficult it is possible
instead to make changes to the procedure.
For example by making adjustments to the wiring
and piping length on the inside (rather than the
outside).
unit side
Fig. 9-3-9
Half union
Externally
threaded side
Internally
threaded side
Use a wrench to secure.
Use a torque wrench to tighten.
Fig. 9-3-10
Ø6.35
D
Ø9.52
C
Outdoor
unit
Ø9.52
B
A
4M27
– 74 –
C UNIT
Ø9.52
B UNIT
Ø6.35
3M26
Side panel
D UNIT
Ø6.35
Ø12.7
Fig. 9-3-11
1. Remove 3 screws
of the side panel.
2. Pull the side
panel downward.
4M27 only
Ø6.35
How to remove the side panel
Fig. 9-3-8
Flare nut
A UNIT
Indoor unit
Connectable capacity class
A
B
C
D
Total
10, 13
16
16
—
(with reducer) (with expander) (with expander)
45
16
10, 13
10, 13
—
10, 13
16
16
16
(with reducer) (with expander) (with expander) (with expander) 52
16
10, 13
10, 13
10, 13
9-3-8. Evacuating
Packed valve handling precautions
After the piping has been connected to all indoor
unit(s), you can perform the air purge together at
once.
AIR PURGE
Evacuate the air in the connecting pipes and in
the indoor unit using vacuum pump.
Do not use the refrigerant in the outdoor unit.
For details, see the manual of vacuum pump.
• Open the valve stem all the way out ; do not try to
open it beyond the stopper.
• Securely tighten the valve stem cap in torque is as
follows :
Gas side (Ø12,7 mm)
50 to 62 N•m (5.0 to 6.2 kgf•m)
Gas side (Ø9,52 mm)
33 to 42 N•m (3.3 to 4.2 kgf•m)
Liquid side (Ø6,35 mm)
14 to 18 N•m (1.4 to 1.8 kgf•m)
Service port
14 to 18 N•m (1.4 to 1.8 kgf•m)
Use a vacuum pump
Hexagonal wrench is required.
Be sure to use a vacuum pump with counter-flow
prevention function so that inside oil of the pump
does not flow backward into pipes of the air conditioner when the pump stops.
(If inside oil of the vacuum pump enters into the air
conditioner which adopts R410A, a trouble of the
refrigeration cycle may be caused.)
1. Connect the charge hose from the manifold valve
to the service port of the gas side packed valve.
2. Connect the charge hose to the port of vacuum
pump.
3. Open fully the low pressure side handle of the
gauge manifold valve.
4. Operate the vacuum pump to start for evacuating.
Perform evacuating for about 35 minutes if the
piping length is total 70 meters. (25 minutes for
total 50 meters) (assuming a pump capacity of
27 liters per minute.)
Then confirm that the compound pressure gauge
reading is –101 kPa ( –76 cmHg).
5. Close the low pressure side valve handle of
gauge manifold.
6. Open fully the valve stem of the packed valves
(both sides of Gas and Liquid).
7. Remove the charging hose from the service port.
8. Securely tighten the caps on the packed valves.
Compound pressure gauge
Fig. 9-3-13
9-3-9. Electrical Work
For the air conditioner that has no power cord,
connect a power cord to it as mentioned below.
3 Units Multi
3M26YAV-E
Maximum
running
current
4M27YAV-E
4M27YACV-E
220 – 240 V
Single phase 50/60 Hz
Power supply
14.6 A
14.6 A
Installation
fuse rating
25 A
Power cord
H07 RN-F or 245 IEC 66
(2.5 mm2 or more)
14.2 A
Pressure gauge
How to wire
–101kPa (–76cmHg)
Manifold valve
Handle Lo
Charge hose
(For R410A only)
Packed valve
at liquid side
4 Units Multi
Model
Handle Hi
(Keep full closed)
Charge hose
(For R410A only)
Vacuum pump adapter
for counter-flow prevention
(For R410A only)
Vacuum
pump
Service port
(Valve core (Setting pin))
Packed valve at gas side
Fig. 9-3-12
1. Connect the connecting cable to the terminal as
identified with their respective matched numbers
on the terminal block of indoor and outdoor unit.
H07 RN-F or 245 IEC 66 (1.0 mm2 or more)
2. When connecting the connecting cable to the
outdoor unit terminal, prevent water coming in the
outdoor unit.
3. Insulate the unused cords (conductors) stripped
the sheath of connecting cable with PVC tape.
Process them so that they do not touch any
electrical or metal parts.
4. For inter-unit wiring, do not use a cut wire jointed
to another on the way.
Use wires long enough to cover the entire length.
– 75 –
3 units (A + B + C) Multi
9-3-10. Check and Test Operation
For R410A, use the leak detector exclusively
manufactured for HFC refrigerant (R410A,
R134a, etc.).
Terminal block (Connecting cable)
* The conventional leak detector for HCFC refrigerScrew
Connecting cable
(B unit)
Connecting cable
Connecting cable
(A unit)
(C unit)
Power cord
Fig. 9-3-14
4 units (A + B + C + D) Multi
ant (R22, etc.) cannot be used because its sensitivity for HFC refrigerant lowers to approx. 1/40.
• Pressure of R410A becomes approx. 1.6 times of
that of R22. If installation work is incompletely
finished, a gas leakage may occur in the cases
such as pressure
rise during operation. Therefore, be sure to test
the piping connections for leaking.
Terminal block
(Connecting cable)
Flare nut connections
(Indoor unit)
Screw
Connecting cable
Connecting cable
(B unit)
(D unit)
Connecting cable
Power cord
(C unit)
Connecting cable
(A unit)
Fig. 9-3-15
• Service port cap
connection
• Valve stem cap
connection
Fig. 9-3-17
CAUTION
• Wrong wiring connection may cause some
electrical parts burn out.
• Be sure to use the cord clamps specified
positions with attached to the product.
• Do not damage or scratch the conductive core
and inner insulator of power and inter-connecting cables when peeling them.
• Be sure to comply with local cords on running
the wire from outdoor unit to indoor unit (size of
wire and wiring method etc.)
• Use the power cord and Inter-connecting cable
with specified thickness, specified type, and
protective devices specified.
• Check the flare nut connections, valve stem cap
connections and service port cap connections for
gas leak with a leak detector or soap water.
CAUTION
• Use a circuit breaker of a type that is not
tripped by shock waves.
• If incorrect/incomplete wiring is carried out, it
will cause an electrical fire or smoke.
• Prepare the power supply for exclusive use
with the air conditioner.
• This product can be connected to the mains.
Connection to fixed wiring :
A switch or circuit breaker which disconnects
all poles and has a contact separation of at
least 3 mm must be incorporate in the fixed
wiring.
An approved short circuit breaker or switches
must be used.
* (A breaker having a sensitivity of approximately 0.1 second or less and a capacity of
approximately 30 mA is usually used.)
Stripping length power cord and connecting cable
L N
10
1 2 3
10
10
10
30
Flare nut connections
(Outdoor unit)
40
30
Earth line
Power cord
40
Earth line
Connecting
cable
Fig. 9-3-16
– 76 –
9-3-11. Miswiring (Mispiping) Check
5. During check (Check time 3 to 20 minutes).
• When an error describes in the table below
occurred check operation stops and error code
is displayed on LED.
6. After check, the result of check is displayed on
LED.
• The Comp. stop when miswiring (mispiping)
error occurred.
• Confirm the contents of table below.
• Turn off the power breaker.
• Correct miswiring/mispiping.
• Execute the check operation again.
• Automatically return to the normal operation
when it is normal.
7. Return to normal operation.
• To return to the normal operation during check
operation or after miswiring (mispiping) error is
determined, connect the miswiring check
connector.
Make sure that the wiring and piping for each room
have the same alphabetical codes (A, B, C, D).
Connect and secure the power cord.
Use the power cord/cables with thickness, type and
protective devices specified in this manual.
Insulate the unused cords (conductors) with PVC
tape.
1. Turn on the power breaker.
2. Open side panel of the outdoor unit.
3. Set the all indoor units to COOL mode.
• It is unnecessary to set the temperature.
• Miswiring check can not be executed when
outdoor air temperature is 5°C or less.
4. Start the check.
• Disconnect the miswiring check connector
(color : Red) from P.C. board of inverter.
Miswiring (mispiping) check by LED Indication
• For this outdoor unit, the self-miswiring (mispiping) check is possible by using five LEDs (1 Yellow + 4 Red).
* LEDs (D800 to D804) locate on the sub-control board underneath of the inverter.
LED
D800 D801 D802 D803 D804
During
check
1
*
*1
l
l
l
l
l
Normal operation (no error)
◎
◎
l
l
l
Checking A unit
◎
l
◎
l
l
Checking B unit
◎
l
l
◎
l
Checking C unit
◎
l
l
l
◎
Checking D unit
◎
¤
l
l
l
Crush/Clog of Pipe A
◎
l
¤
l
l
Crush/Clog of Pipe B
◎
l
l
¤
l
Crush/Clog of Pipe C
◎
l
l
l
¤
Crush/Clog of Pipe D
◎
¤
l
l
Miswiring/Mispiping or Crush/Clog of Pipe A, B
l
¤
l
Miswiring/Mispiping or Crush/Clog of Pipe A, C
◎
¤
¤
¤
l
l
¤
Miswiring/Mispiping or Crush/Clog of Pipe A, D
◎
l
¤
l
Miswiring/Mispiping or Crush/Clog of Pipe B, C
◎
l
¤
¤
l
Miswiring/Mispiping or Crush/Clog of Pipe B, D
◎
l
l
◎
¤
¤
l
A, B, C Miswiring/Mispiping
l
◎
l
¤
¤
¤
¤
¤
¤
A, B, D Miswiring/Mispiping
◎
¤
¤
¤
¤
¤
¤
¤
◎
¤
¤
¤
¤
A, B, C, D Miswiring/Mispiping packed valve
keeps closed
◎
*1
Result of
judgement
*1
*1
Description
◎
l
LED
D800 D801 D802 D803 D804
Red
Yellow
MISWIRING (MISPIPING)
CHECK CONNECTOR
(Color:RED)
Check mode
Short
Normal operation
Short
Miswiring/Mispiping or Crush/Clog of Pipe C, D
A, C, D Miswiring/Mispiping
B, C, D Miswiring/Mispiping
– 77 –
Open
Fig. 9-3-18
LED : Light Emitting Diode
¤ : LED ON
l : LED OFF
◎ : LED FLASH
1 : 4 units Multi model only
*
Useful Functions
Self-Diagnosis by LED Indication
• For this outdoor unit, the self-diagnosis is possible by using five LEDs (1 Yellow + 4 Red).
LEDs (D800 to D804) are provided on P.C. board of the inverter.
*
LED indication
Indoor
D800 D801 D802 D803 D804 alarm code
None
l
l
l
l
l
14
l
¤ l l l
16
¤ ¤ l l l
17
l
l
¤ l l
2 ¤
18
l
¤ ¤ l
2 l
18
l
¤ ¤ l
19
l
¤ ¤ l l
1A
¤ ¤ ¤ l l
1B
l
l
l
¤ l
1C
¤ l ¤ l l
1C
¤ ¤ ¤ ¤ l
1C
¤ l l l ¤
1C
¤ ¤ l l ¤
1 l
1C
l
l
l
¤
*
*
*
l
¤
¤
l
¤
¤
¤
l
l
l
¤
¤
¤
l
l
l
l
¤
¤
¤
¤
¤
l
¤
l
¤
¤
l
¤
¤
¤
¤
l
l
l
1C
1C
1C
1C
1D
1E
1F
Contents
Normal running
IGBT short circuit, Compressor motor rare short
Trouble on position detecting circuit
Trouble on current detecting circuit
Outdoor heat exchanger temp. sensor (TE) fault
Suction temp. sensor (TS) fault
Discharge temp. sensor (TD) fault
Trouble on outdoor fan motor
Outdoor temp. sensor (TO) fault
Trouble on compressor system
Temp. sensor (TGa) fault at A room gas side
Temp. sensor (TGb) fault at B room gas side
Temp. sensor (TGc) fault at C room gas side
Temp. sensor (TGd) fault at D room gas side
Gas leakage, TS sensor out of place, PMV,
sensor fault
TE sensor out of place, indoor heat exchanger
sensor (TC) out of place, PMV, sensor fault
Miswiring at indoor or outdoor, Gas leakage,
TS, TC sensor out of place, PMV, sensor fault
Communication trouble between MCU
Compressor lock
Trouble on discharge temp, Gas leakage
Compressor break down
– 78 –
1. If a trouble occurs, LED goes on
according to the contents of trouble
as shown in the left table.
2. When two or more troubles occur,
LEDs go on cyclically (alternately).
3. Usually, LEDs (Red) go off.
LED
D800 D801 D802 D803 D804
Red
Yellow
Fig. 9-3-19
IGBT : Insulated Gate Bipolar Transistor
PMV : Pulse Modulating Valve
LED : Light Emitting Diode
: LED ON
l : LED OFF
1 : 4 units Multi model only
2 : Heat pump model only
¤
*
*
10. HOW TO DIAGNOSE THE TROUBLE
The pulse modulating circuits are mounted to both indoor and outdoor units. Therefore, diagnose troubles
according to the trouble diagnosis procedure as described below. (Refer to the check points in servicing written
on the wiring diagrams attached to the indoor/outdoor units.)
Table 10-1
No.
Troubleshooting Procedure
Page
1
First Confirmation
80
2
Primary Judgment
80
3
Judgment by Flashing LED of Indoor Unit
81
4
Self-Diagnosis by Remote Controller (Check Code)
82
5
Judgment of Trouble by Every Symptom
85
6
Trouble Diagnosis by Outdoor LED
91
7
How to Diagnose Trouble in Outdoor Unit
92
8
How to Check Simply the Main Parts
93
9
How to Simply Judge Whether Outdoor Fan Motor is Good or Bad
99
NOTE :
A large-capacity electrolytic capacitor is used in the
outdoor unit controller (inverter). Therefore, if the
power supply is turned off, charge (charging voltage
DC280V) remains and discharging takes a lot of
time. After turning off the power source, if touching
the charging section before discharging, an electrical
shock may be caused. Discharge the electrolytic
capacitor completely by using soldering iron, etc.
< Discharging method >
(1) Remove the inverter cover (plating) by opening
four mounting claws.
(2) As shown below, connect the discharge
resistance (approx. 100Ω/40W) or plug of the
soldering iron to voltage between + – terminals of
the C13 (“CAUTION HIGH VOLTAGE 320V” is
indicated.) electrolytic capacitor (760µF/400V) on
P.C. board, and then perform discharging.
Discharging position
(Discharging period
10 seconds or more)
Plug of
soldering iron
Inverter cover
P. C. board
(Soldered surface)
Fig. 11-1
– 79 –
10-1. First Confirmation
10-1-3. Operation Which is not a Trouble
(Program Operation)
10-1-1. Confirmation of Power Supply
For controlling the air conditioner, the program
operations are built in the microcomputer as described in the following table. If a claim is made for
running operation, check whether or not it meets to
the contents in the following table. When it does, we
inform you that it is not trouble of equipment, but it is
indispensable for controlling and maintaining of air
conditioner.
Confirm that the power breaker operates (ON) normally.
10-1-2. Confirmation of Power Voltage
Confirm that power voltage is AC 220–240V ± 10%.
If power voltage is not in this range, the unit may not
operate normally.
Table 10-1-1
No.
Operation of air conditioner
Description
1
When power breaker is turned “ON”, the
operation lamp (Green) of the indoor unit
flashes.
The OPERATION lamp of the indoor unit flashes when
power source is turned on. If “START/STOP” button is
operated once, flashing stops. (Flashes also in power
failure)
2
Compressor may not operate even if the
room temperature is within range of
compressor-ON.
The compressor does not operate while compressor
restart delay timer (3-minutes timer) operates.
The same phenomenon is found after power source has
been turned on because 3-minutes timer operates.
3
In DRY and ECONO. mode, FAN (air flow)
display does not change even though FAN
(air flow select) button is operated.
The air flow indication is fixed to [AUTO].
4
Increasing of compressor motor speed
stops approx. 30 seconds after operation
started, and then compressor motor speed
increases again approx. 30 seconds after.
For smooth operation of the compressor, the compressor
motor speed is restricted to Max. 33 rps for 2 minutes and
Max. 57 rps for 2 minutes to 4 minutes, respectively after
the operation has started.
5
The set value of the remote control should
be below the room temperature.
If the set value is above the room temperature, Cooling
operation is not performed. And check whether battery of
the remote control is consumed or not.
10-2. Primary Judgment
To diagnose the troubles, use the following methods.
(1) Judgment by flashing LED of indoor unit
(2) Self-diagnosis by service check remote controller
(3) Judgment of trouble by every symptom
Firstly use the method (1) for diagnosis. Then, use the method (2) or (3) to diagnose the details of troubles.
For any trouble occurred at the outdoor unit side, detailed diagnosis is possible by 5-serial LED on the inverter
P.C. board.
– 80 –
10-3. Judgment by Flashing LED of Indoor Unit
While the indoor unit monitors the operation status of the air conditioner, if the protective circuit operates, the
contents of self-diagnosis are displayed with block on the indoor unit indication section.
Table 10-3-1
Lamps
Self-diagnosis
A
OPERATION lamp is blinking. (1Hz)
Power failure (when the power supply is turning on)
B
OPERATION lamp is blinking. (5Hz)
Thermo sensor (TA) short or break
C
OPERATION lamp is blinking. (5Hz)
Heat exchanger sensor (TC) short or break
D
OPERATION lamp is blinking. (5Hz)
Indoor fan motor lock or failure
E
OPERATION lamp is blinking. (5Hz)
Indoor P.C. board failure
F
OPERATION and TIMER lamps are blinking.
(5Hz)
Wrong wiring of connecting cable
G
OPERATION, TIMER and FAN ONLY lamps
are blinking.
• Gas shortage or other refrigerant cycle trouble
• Heat exchanger sensor open, break or short
• Overload relay or thermostat trouble of compressor
H
OPERATION, TIMER and FAN ONLY lamps
are blinking.
Cycle failure
NOTES:
(1)
(2)
(3)
(4)
The contents of items B and C and a part of item E are displayed when air conditioner operates.
When item B and C, and item B and a part of item E occur concurrently, priority is given to the block of item B.
The check codes can be confirmed on the remote controller for servicing.
When connecting the changing kit, first-push priority control is executed. The secondary operation lamp
continues flashing. For details, refer to the section 10. Changing Kit.
– 81 –
10-4. Self-Diagnosis by Remote Control
(Check Code)
(1) If the lamps are indicated as shown B to H in Table
11-3-1, exchanger the self-diagnosis by the
remote control.
(2) When the remote control is set to the service
mode, the indoor controller diagnoses the operation condition and indicate the information of the
self-diagnosis on the display of the remote control
with the check codes. If a fault is detected, all
lamps on the indoor unit will blink at 5Hz and it will
beep for 10 seconds (Pi, Pi, Pi....). The timer lamp
usually blinks (5Hz) during the self-diagnosis.
10-4-1. How to use remote control in service mode
SET
CLR
RESET CLOCK CHECK
(1) Press [CHECK] button with a tip of pencil to set
the remote control to the service mode.
• “00” is indicated on the display of the remote
control.
• The timer lamp on the indoor unit blinks
continuously. (5 times per 1 sec.)
AUTOA
A
B
PRESET
(2) Press [TIMER 8] button.
If there is no fault with a code, the indoor unit will
beep once (Pi) and the display of the remote
control will change as follows:
; 00 ; 01 ; 02 ··· 1d ; 1E ; 22
START/STOP
FAN
SWING
AUTO
ECO
Hi-POWER
TIMER
FIX
ON
MODE
OFF
• Check the unit with all 35 check codes (00 to
22). as shown in Table 10-4-1.
• Press [TIMER 9] button to change the check
code backwards.
MEMO
SET
If there is a fault, the indoor unit will beep for 10
seconds (Pi, Pi, Pi...).
Note the check code on the display of the remote
control.
• 2-digits alphanumeric will be indicated on the
display.
• All lamps on the indoor unit will blink. (5 times
per 1 sec.)
CLR
FILTER
RESET CLOCK CHECK
(3) Press [CLR] button. After service finish for clear
service code in memory.
• “7F” is indicated on the display of the remote
control.
• Alphanumeric characters are used for the check
code.
is 5.
is A.
is C.
is 6.
is B.
is D.
(4) Press [START/STOP] button to release the service
mode.
• The display of the remote control returns to as it
was before service mode was engaged.
– 82 –
10-4-2. Caution at Servicing
(1) After servicing, push the START/STOP button to return to the normal mode.
(2) After servicing by the check code, turn off breaker of the power supply, and turn on breaker of the power
supply again so that memory in the microcomputer returns the initial status. However, the check codes are
not deleted even if the power supply is turned off because they are stored in the fixed memory.
Table 10-4-1
Block distinction
Check
code
Block
Indoor P.C.
board etc.
Operation of diagnosis function
Check
code
Cause of operation
Air
conditioner
status
Judgment and action
Condition
Short-circuit or disconnec- Operation Displayed when
tion of the room tempera- continues. error is detected.
ture sensor (TA sensor).
1. Check the room temp. sensor.
2. When the room temp. sensor is
normal, check P.C. board.
Coming-off,
Operation Displayed when
disconnection,
continues. error is detected.
short-circuit, or migration
of heat exchanger sensor
(TC sensor)
1. Check heat exchanger sensor.
2. When heat exchanger sensor is
normal, check P.C. board.
Lock of indoor fan or
trouble on the indoor fan
circuit
All off
1. Check P.C. board.
2. When P.C. board is normal, check
the motor.
Not
displayed
Trouble on other indoor
P.C. boards
Operation Displayed when
continues. error is detected.
Connecting
cable and
serial signal
Return serial signal is not Operation
sent to indoor side from
continues.
operation started.
(1) Defective wiring of
connecting cable
(2) Operation of
compressor thermo.
Gas shortage
Gas leak
Operation command
signal is not sent to
outdoor side.
Displayed when
error is detected.
1. When the outdoor unit never
Flashes when
operate:
trouble is detected
(1) Check connecting cable, and
on Return serial
correct if defective wiring.
signal, and normal
(2) Check 25A ( or 30A) fuse (F01)
status when signal
of outdoor main P.C. board.
is reset.
(3) Check 3.15A fuse (F04) of
outdoor main P.C. board.
2. To display [Other] block during
operation, check compressor
thermo. operation and supply gas
(check gas leak also).
3. Unit operates normally during
check.
If Return serial signal does not
stop between indoor terminal
board 2 and 3, replace inverter P.C.
board.
If signal stops between indoor
terminal board 2 and 3, replace
indoor P.C. board.
Operation Flashes when
continues. trouble is detected
on Operation
command signal,
and normal status
when signal is
reset.
– 83 –
Replace P.C. board.
If Operation command signal does not
stop between indoor terminal board 2
and 3, replace inverter P.C. board.
If signal stops between indoor
terminal board 2 and 3, replace indoor
P.C. board.
Block distinction
Operation of diagnosis function
Check
Check
Cause of operation
Block
code
code
Outdoor P.C.
board
Air
conditioner
status
Judgment and action
Remarkes
Inverter over-current
All off
protective circuit operates.
(Short time)
Displayed when Even if trying operation again, all
error is detected. operations stop immediately. : Replace
P.C. board.
Position-detect circuit
error or short-circuit
between windings of
compressor
All off
Displayed when 1. Even if connecting lead wire of
error is detected.
compressor is removed, positiondetect circuit error occurred. :
Replace P.C. board.
2. Measure resistance between wires of
compressor, and perform shortcircuit. : Replace compressor.
Current-detect circuit
error
All off
Displayed when Even if trying operation again, all
error is detected. operations stop immediately. : Replace
P.C. board.
Being out of place,
disconnection or shortcircuit of outdoor temp.
sensor
All off
Displayed when Check 5-serial LED.
error is detected. 1. Check P.C. board.
Disconnection or shortcircuit of discharge temp.
sensor
All off
Displayed when 1. Check discharge temp. sensor (TD).
error is detected. 2. Check P.C. board.
Outdoor fan drive system All off
error
Displayed when Position-detect error, over-current
error is detected. protective operation of outdoor fan drive
system, fan lock, etc. : Replace P.C.
board or fan motor.
Not
displayed
Outdoor temp. sensor
error
Operation
continues.
Outdoor P.C.
board
Compressor drive output
error, Compressor error
(lock, missing, etc.),
Break down
All off
Displayed when Check 5-serial LED.
error is detected. When 20 seconds passed after start-up,
position-detect circuit error occurred. :
Replace compressor.
Error exclusive for
multiple type
All off
Displayed when Check 5-serial LED.
error is detected. 1. Miswiring of connecting wire of A/B/
C/D rooms in indoor/outdoor units
2. Check gas leakage.
3. Check disconnection of sensor.
4. Electronic control valve error
Others
(including
compressor)
——
1. Check outdoor temp. sensor (TO).
2. Check P.C. board.
Compressor does not
All off
rotate. (Current protective
circuit does not operate
when a specified time
passed after compressor
had been activated.)
Displayed when 1. Trouble on compressor
error is detected. 2. Trouble on wiring of compressor
(Missed phase)
Discharge temp. exceeded 120°C.
All off
Displayed when 1. Check dischage temp. sensor (TD).
error is detected. 2. Degassing
3. Trouble on P.M.V.
Break down of
compressor
All off
Displayed when 1. Check power voltage.
(220–240 V ±10%)
error is detected.
2. Overload operation of refrigeration
cycle
Check installation condition
(Short-circuit of outdoor diffuser).
– 84 –
10-5. Judgement of Trouble by Every Symptom
10-5-1. Indoor unit (Including remote controller)
(1) Power is not turned on (Does not operate entirely)
Turn off power
supply once, and 5
second later, turn it
on again.
Operation
Check item
Conceivable principle
cause
NO
Is OPERATION
lamp blinking?
Measure
YES
Is it possible to
turn on power
supply by
pressing
[START/STOP]
button on
remote control?
Does
transmission
mark on
remote control
flash normally,
and is its signal
transmitted
properly?
NO
YES
Item by symptoms
NO
Remote control is
defective.
Refer to (5)
“Troubleshooting for
Remote Control.”
YES
Unit operates
normally.
Is fuse (F01)
YES
of indoor control
board blown?
NO
NO
Is DC
310 – 340V
NO
suppalied to
primary side of
transfer switch?
YES
Are DC 15V,
DC 12V and
DC 7V
supplied to
secondary
side of
transfer
switch?
YES
NO
Parts
(R04, C01,
DB01, C03, R01
IC01 and T01)
are defective.
Does
fan motor
connector
between 1
and 2
short-circuit?
YES
NO
Is voltage
(DC 12V or 5V)
YES
indicated on
rear of indoor
control board
normal?
Microcomputer
is defective.
Replace main
P.C. board.
Refer to
<Primary check>
or this problem
is one step short
of power P.C.
board block.
Turn off breaker
once and turn it
on again after
removing motor.
Are DC 15V,
DC 12V or
DC 7V
supplied to
secondary
side of
transfer
switch?
NO
Transfer switch,
IC (IC01) for
power supply or
fan motor is
defective.
YES
Replace motor.
• Be sure to disconnect the motor connector CN10 after shut off the power supply, or it will be a cause of
damage of the motor.
– 85 –
(2) Power is not turned on though Indoor P.C. board is replaced
<Confirmation procedure>
Turn on power supply.
NO
Does operation lamp flash?
YES
Is wired correctly to white and black
lead wires of terminal board?
NO
Correct wiring.
YES
To item of
“Power is not turned on”.
– 86 –
(3) Only indoor fan motor does not operate.
<Preliminary check>
1 Is it possible to detect the power supply voltage (200 – 240V) between 1 and 2 on the terminal block?
2 Does the indoor fan motor operate in cooling operation?
(In heating operation, the indoor fan motor does not operate for
Operation
approximately 5 minutes after it is turned on, to prevent a cold air
Check item
from blowing in.)
Conceivable principle
cause
Turn off power
supply once, and
turn it on again.
Measure
Item by symptoms
Does
compressor
continue to
operate?
YES
NO
Replace indoor
fan motor.
YES
NO
Start to operate
indoor unit in
cooling operation
at airflow
level “LOW”.
Does indoor
fan operate?
Is it possible to detect
DC 1V or more between
5e and 3dof motor
connector (CN10).
NO
YES
Is it possible to detect DC
310 – 340V between
1e and 3d of motor
connector (CN10).
NO
YES
Change airflow
level to “High”.
(Motor connection condition)
Is it possible to detect DC 15V
between 4e and 3d of
motor connector (CN10).
NO
Turn off indoor unit
and remove connector
from motor. Then press
START/STOP button
on remote control to
stop blinking lamp on
indoor unit.
YES
Start to operate the
indoor unit. At this time, is it
possible to detect DC 1V or
more between 5e and 3d
of motor connector (CN10)?
Is it possible to
change airflow
level to “High”?
YES
Fan motor
operates normally.
NO
NO
Is it possible to rotate cross- NO
flow fan by hand properly?
Turn off indoor unit and rotate
cross-flow fan by hand when the
unit is on standby. At this time, NO
is it possible to detect DC 1V or
more between 5e and 3d
of motor connector (CN10).
Is it possible to detect
DC 15V between 4e
and 3d of motor
connector (CN10).
NO
Replace main
P.C. board.
Turn off indoor unit
and remove connector
from motor.
Then start to operate
indoor unit with
remote control.
Start to operate the indoor
unit in except heating
operation. At this time, is it
possible to detect DC 1V
or more between 5e and
3d of motor connector
(CN10)? (Check this
condition within 15 seconds
after starting unit.)
NO
YES
Replace bearing.
YES
– 87 –
(4) Indoor fan motor starts rotating by turning on power supply alone
<Cause>
The IC is built in the indoor fan motor. Therefore the P.C. board is also mounted to the inside of the motor.
If the P.C. board is soldered imperfectly or the IC is defective, the fan motor may automatically rotate by turning
on power supply.
<Confirmation procedure>
(1) Remove the front panel.(Remove 4 screws.)
(2) Remove cover of the fan motor lead wires.
(3) Check DC voltage with CN10 connector while the fan rotating.
NOTE :
• Do not disconnect the connector while the fan rotates.
• Use a thin tester rod.
P.C. board
CN10
Indoor fan starts rotating when power supply breaker is turned “ON”.
(Check output voltage (DC) of the fan motor on P.C. board.)
Yellow
Measure the voltage of the motor connector
CN10 pin 2 (GND : Black) and pin 3 (V line : Yellow)
under condition that the indoor fan rotates.
6 (Blue)
5 (Yellow)
4 (Blue)
Black
3 (Yellow)
2
—
1 (Red)
Above DC 0.4V
Below DC 0.4V
P.C. board is defective.
Motor is defective.
– 88 –
DC
(5) How to examine whether remote controller is good or bad
• Does setting (A/B) of the remote controller selection match with that indoor unit?
Operation
Check Items
There is no beep from
the indoor unit.
The operation lamp of
the air conditioner main
unit does not light.
Press the START/STOP button.
Considerable main cause
Measures
Does the transmission
indicator of remote
controller light?
Item by symptom
NO
YES
Is there direct
sunlight on the
receptor of the
air conditioner?
Short-circuit ACL switch with
a coin or others at rear side
of remote controller.
NO
YES
Is there any
thyristor
fluorescent light
near by?
NO
NO
YES
Is operation
possible when the
transmitter is moved
nearer to the infrared
signal receiver of the
air conditioner?
Push the START/
STOP button
YES
Battery life
Does the
transmission
indicator light?
Is Temporary Cool
operation possible when
NO
keeping the temporary
switch of the air conditioner
main unit pushed for
10 seconds or more?
NO
YES
NO
YES
Is there any
receiving sound
and operation?
YES
Can any signal tone
be heard in a transistor
radio when transmitting
within 5cm distance
from the radio?
NO
YES
Avoid direct
sunlight.
Keep the air
conditioner away
from thyristor
fluorescent light.
Replace
P.C. board.
Replace the
battery.
– 89 –
Normal
Remote controller
is failure.
10-5-2. Wiring Failure (Interconnecting and Serial Signal Wire)
(1) Outdoor unit does not operate
1) Is the voltage between ‚ and ƒ of the indoor terminal block varied?
Confirm that transmission from indoor to outdoor is correctly performed based upon the following diagram.
NOTE:
• Measurement should be performed 2 minutes and 30 seconds after starting of the operation.
• Be sure to prepare a diode for judgment.
Terminal block at indoor side
Red
S5277G or equivalent (G or J type)
(Diode with rated voltage of 400V
or more is acceptable.)
3
S5277G
White
2
1
Terminal block
Tester
Fig. 11-5-1
Normal time
: Voltage swings between DC15 and 60V.
Abnormal time : Voltage does not vary.
(2) Outdoor unit stops in a little while after operation started
<Check procedure> Select phenomena described below.
(1) The outdoor unit stops 10 to 20 minutes after operation started, and 10 minutes or more are required to
restart the unit.
Gas circulation amount is down.
Gas shortage
Gas leak
Measure gas pressure.
Pipe clogging
Thermo. operation of compressor
(2) If the unit stops once, it does not operate until the power will be turned on again.
To item of Compressor does not operate.
(3) The outdoor unit stops 10 minutes to 1 hour after operation started, and an alarm is displayed.
(Discharge temp. error check code 03, 1E)
Gas leak
P.M.V. is defective.
Miswiring of connecting wires of indoor/outdoor units
Clogging of pipe and coming-off of TG, TC sensors
– 90 –
10-6. Trouble Diagnosis by Outdoor LED
For the outdoor unit, the self-diagnosis is possible by
LED (Yel) and four LEDs (Red).
• LED (Yel) (D800) and LEDs (Red) (D801 to D804)
are provided on the sub-control board under
surface of the inverter, and as shown below, they
are checked from the wiring port when removing
the wiring cover.
1. If a trouble occurs, LED (Red or Yel) goes on
according to the trouble as described in the table
below.
2. When two or more troubles occur, LEDs go on
cyclically.
3. Usually, LEDs (Red or Yel) go off.
LED
D800 D801 D802 D803 D804
Red
Yellow
Fig. 10-6-1
○ : LED ON, l : LED OFF
IGBT : Insulated Gate Bipolar Transistor, P.M.V. : Pulse Modulating Valve
LED display
Indoor
check code
Description
D800
D801
D802
D803
D804
●
●
●
●
●
—
During normal operation
●
○
●
●
●
14
IGBT short circuit, compressor motor rare short
○
○
●
●
●
16
Position-detect circuit error
●
●
○
●
●
17
Current-detect circuit error
○
●
○
●
●
1C
Compressor system error
●
○
○
●
●
19
Discharge temp. sensor (TD) error
○
○
○
●
●
1A
Outdoor fan error
●
●
●
○
●
1B
Outside temp. sensor (TO) error
○
●
●
○
●
1D
Compressor lock
●
○
●
○
●
1E
Discharge temp. sensor error, gas leakage
○
○
●
○
●
1F
Compressor break down
*4
*4
*2
*2
*2
*2, *3
*1
●
●
○
○
●
18
Suction temp. sensor (TS) error
○
●
○
○
●
18
Evaporator temp. sensor (TE) error
○
○
○
○
●
1C
A room gas side temp. sensor (TGa) error
○
●
●
●
○
1C
B room gas side temp. sensor (TGb) error
○
○
●
●
○
1C
C room gas side temp. sensor (TGc) error
●
●
●
●
○
1C
D room gas side temp. sensor (TGd) error
●
○
○
●
○
1C
Gas leakage, P.M.V. sensor error
*1
○
○
○
●
○
1C
Indoor heat exchanger sensor (TC) disconnection,
P.M.V. sensor error
●
●
●
○
○
1C
Indoor/outdoor miswiring, gas leakage, TC sensor
disconnection, P.M.V. sensor error
○
○
●
○
○
1C
Communication error between MCU
*1 : Back-up operation is performed without block display of the indoor unit.
*2 : Operated normally when the air conditioners in other rooms are driven.
*3 : 4 units Multi model only
*4 : Heat pump model only
– 91 –
10-7. How to Diagnose Trouble in Outdoor Unit
10-7-1. Summarized Inner Diagnosis of Inverter Assembly
Diagnosis/Process flowchart
Preparation
Remove
connector of
compressor.
Check 30A fuse
(Part No.F01).
Contents
Item
Check
Summary
Turn “OFF” the power
breaker, and remove 3P
connector which connects
inverter and compressor.
• Check whether 30A fuse on
the control board assembly
is blown or not. (F01)
NG
If fuse was blown, be sure to
check the electrolytic
capacitor and diode block.
(DB01)
• Connect discharge resistance (approx. 100Ω40W)
or soldering iron (plug)
between +, – terminals of
the electrolytic capacitor
(760µF) of C13 (with
printed CAUTION HIGH
VOLTAGE) on P.C. board.
OK
Replace fuse.
Check
electrolytic
capacitor, diode
block, etc.
Discharging position
(Discharging period
10 seconds or more)
Check
terminal voltage
of electrolytic
capacitor.
NG
OK
Plug of
soldering
iron
Check
electrolytic
capacitor, diode
block, etc.
Does outdoor
fan rotate?
Operation
NO
YES
Does LED on control
board flash or go on?
YES
Turn on power breaker, and
operate the air conditioner in
COOL mode by short-circuit
of the timer.
Measurement Measure terminal voltage of
the electrolytic capacity.
NO
OK if 760µF → DC280V
Remove CN300 while
pushing the part indicated by
an arrow.
760µF:400WV x 4
Remove connector
CN300 of outdoor fan
NG
motor, and using a
tester, check resistance
value between every
phases at motor side.
Check
Stop
OK
Check
Replace
outdoor
fan motor.
A
B
C
After operation, turn off the
power breaker after 2 minutes
20 seconds passed, and
discharge the electrolytic
capacity by soldering iron.
Check voltage between motor
phases.
Measurement • Is not winding between
Q – R, R – S, or Q – S
opened or short-circuited?
→ Resistance between
phases should be approx.
25 to 55Ω.
• Is not frame grounded with
Q, R, or S?
→ Should be 10MΩ or more.
– 92 –
Diagnosis/Process flowchart
A
B
Item
Contents
Check
Check winding resistance
between phases of compressor, and resistance between
outdoor frames by using a
tester.
• Is not grounded.
• Is not short-circuited
between windings.
• Winding is not opened.
C
Check
winding of
compressor.
NG
OK
NG
Check
fan motor
position
detect
signal.
Replace
compressor.
Operation
Remove connector CN300 of
the outdoor fan motor, turn
on the power breaker, and
perform the operation.
(Stops though activation is
prompted.)
Check operation within 2
minutes 20 seconds after
activation stopped.
Check
<Output check of fan motor
position detect signal>
While connecting connector
5P (CN301) for position
detection, using a tester,
measure voltage between
 – …. Between … – „ : 5V
OK
Replace
outdoor
fan
motor.
Replace control
board assembly.
Check
compressor
winding
resistance.
NG
OK
Replace
control board.
Summary
→ OK if 10MΩ or more
→ OK if 0.2Ω (under 20°C)
(Check by a digital tester.)

a) One or two of three voltages should be 5V, and
others should be 0V. (When
all are 0V or 5V, it is not
accepted.)
b) When rotating the fan
slowly with hands, the
voltage between pins
should move from 0V to 5V.
(Check it with an analog
tester.)
Replace
compressor.
10-8. How to Check Simply the Main
Parts
10-8-1. How to Check the P.C. Board
(Indoor Unit)
(1) Operating precautions
1) When removing the front panel or the P.C.
board, be sure to shut off the power supply
breaker.
2) When removing the P.C. board, hold the edge
of the P.C. board and do not apply force to the
parts.
3) When connecting or disconnecting the
connectors on the P.C. board, hold the whole
housing. Do not pull at the lead wire.
(2) Inspection procedures
1) When a P.C. board is judged to be defective,
check for disconnection, burning, or discoloration of the copper foil pattern or this P.C.
board.
2) The P.C. board consists of the following 2
parts
a. Main P.C. board part :
DC power supply circuit (5V, 12V, 35V),
Indoor fan motor control circuit, CPU and
peripheral circuits, buzzer, and Driving
circuit of top/bottom louvers
b. Indication unit of infrared ray receiving
Infrared ray receiving circuit, LED :
To check defect of the P.C. board, follow the
procedure described below.
– 93 –
(3) Check procedures
Table 10-8-1
No.
1
Procedure
Shut off the power supply and
remove the P.C. board assembly
from the electronic parts base.
Check point (Symptom)
1. Is the fuse blown?
Causes
1. * Application of shock voltage.
by short-circuit of the
* Overload
parts.
Remove the connecting cable from
the terminal block.
2
Remove the connector for the
motor, and turn the power on.
If the OPERATION lamp flashes
(0.5 sec. : ON, 0.5 sec. : OFF) when
the power turning on, the checking
points described as 1-3 of right
column are not necessary to
perform.
Voltage check
1. * AC power cord is defective.
1. Between TP1 and TP2
(220–240V AC)
4. Between 12V and GND
* Poor contact of the terminal plate.
* Miss wiring of the power relay.
2. * Capacitor (C01, C15) is defective.
* Line filter (L01) is defective.
* Resistor (R01) is defective.
* Diode (DB01) is defective.
5. Between 5 V and GND
3. IC01, IC02, T01 are defective.
2. Between + and - of C02
(310 to 340V DC)
3. Between 35V and GND
4. IC01, IC02, T01, F03 are defective.
5. IC01, IC02, T01, F02, Q29, IC03 are
defective.
3
4
Start the operation with the system
which the time of the restart delay
timer is shortened.
1. All indicators light for 3 sec.
2. Indicators do not indicate normally
after approximate 3 sec.
Make the operation status by pressing 1. Compressor does not operate.
once the START/STOP button.
2. OPERATION lamp flashes.
1. The time of the restart delay timer
is shortened.
2. Cool operation



Defective indicator, or poor
housing assembly. (CN13)
1. The temperature of the indoor heat
exchanger is abnormally low.
2. Poor contact of the heat exchanger
sensor. (The connector is
disconnected.) (CN01)
3. Air volume [AUTO]
3. Heat exchanger sensor, main P.C.
board are defective.
4. Make the setting temperature lower
enough than room temperature.
4. Main P.C. board is defective.
5. Continuous operation.
5
Turn the power on after connecting
the motor connector.
1. The voltage of DC 35V is not
measured between the red and
black of the motor terminals.
1. Indoor fan motor is defective.
(Protecting operation on the P.C.
board.)
Start the operation with the following
2. Motor does not rotate.
2. Poor contact of the motor
condition.
(The key operation is accepted.)
connector.
1. Operation [Cooling]
3. The motor rotates, but it vibrates too 3. P.C. board is defective.
2. Airflow [High fan]
much.
3. Continuous operation
– 94 –
10-8-2. P.C. Board Layout
<Top View>
<Bottom View>
– 95 –
<Sensor characteristic table>
100
Resistance value (k )
90
80
TD
70
60
50
40
30
20
TA, TC, TO, TGa, TGb, TGc, TGd
10
0
0
10
20
30
40
50
Temperature (˚C)
– 96 –
TD
TA
TC
TO
TGa
TGb
TGc
TGd
: Discharge temp. sensor
: Room temp. sensor
: Heat exchanger temp. sensor
: Outdoor temp. sensor
: Gas side temp. sensor
: Gas side temp. sensor
: Gas side temp. sensor
: Gas side temp. sensor
10-8-3. Indoor Unit (Other Parts)
No.
Part name
1
Room temp. (TA) sensor
Heat exchanger (TC)
sensor
Checking procedure
Disconnect the connector and measure the resistance value with tester.
(Normal temp.)
Temperature
Sensor
TA, TC (kΩ)
10°C
20°C
25°C
30°C
40°C
20.7
12.6
10.0
7.9
4.5
2
Remote controller
To item of How to judge whether remote control is good or bad of the
Judgment of trouble by symptom.
3
Louver motor
MP-24GA
Measure the resistance value of each winding coil by using the tester.
(Under normal temp. 25°C)
Position Resistance value
White
Yellow
Yellow
Yellow
Yellow
4
Indoor fan motor
1
2
3
4
5
1 to 4
1 to 6
2 to 3
2 to 5
130 ± 10 Ω
Since judgment of DC motor is difficult on the single motor, refer to 10-5-1. (3).
10-8-4. Outdoor Unit
No.
1
Part name
Checking procedure
Compressor
Measure the resistance value of each winding by using the tester.
Red
(Model : DA220A2F-20L)
Position
Resistance value
0.2 ± 0.01 Ω
0.2 ± 0.01 Ω
0.2 ± 0.01 Ω
Under 20°C
Red - White
White - Black
Black - Red
White
2
Outdoor fan motor
(Model : ICF-140-60-1)
Black
Measure the resistance value of winding by using the tester.
Red
1 Yellow
Position
Yellow- Pink
Resistance value
5 to 20 kΩ
4 Pink
5 Gray
For details, refor to Section 10-9.
3
Compressor thermo.
Bimetal type (Model :
US622KXTMQO)
Check conduction by using the tester.
4
Outdoor temperature
Disconnect the connector, and measure resistance value with the tester.
sensor (TO), pipe tem(Normal temperature)
perature sensor (TGa,
TGb, TGc, TGd), dis10°C
20°C
25°C
40°C
50°C
Sensor
charge temperature
TD (kΩ)
105
64
51
27
18
sensor (TD), suction
temperature sensor (TS),
TO, TE, TS (kΩ)
20.6
12.6
10.0
5.1
3.4
evaporator temperature
TGa, TGb, TGc, TGd (kΩ)
20.0
12.5
10.0
5.3
3.6
sensor (TE),
– 97 –
10-8-5. Checking Method for Each Part
Part name
1
Electrolytic capacitor
(For raising pressure,
smoothing)
Checking procedure
1. Turn OFF the power supply breaker.
2. Discharge all four capacitors completely.
3. Check that safety valve at the bottom of capacitor is not broken.
4. Check that vessel is not swollen or exploded.
5. Check that electrolytic liquid does not blow off.
6. Check that the normal charging characteristics are shown in continuity test
by the tester.
Heat sink IGBT side
No.
C10
C11
C12
C13
Case that product is good
MCC-1359
Soldered
surface
Pointer swings once, and
returns slowly.
When performing test once
again under another polarity,
the pointer should return.
C12, C13, C14, C15 → 500µF/400V
2
Converter module
1. Turn OFF the power supply breaker.
2. Discharge all four capacitors completely.
3. Check that the normal rectification characteristics are shown in continuity
test by the tester.
Mark
+
~1 –
~2
A
E
G
Diode check
Tester rod
+
~1
~2
+
E
3
IGBT module
+
~1 –
Resistance value
in good product
–
–
~2
A
E
G
IGBT check
~1
~2
~1
~2
Tester rod
50k or more
(0 in trouble)
+
~2
–
G
E
Resistance value
in good product
E
50k or more
(0 in trouble)
1. Turn OFF the power supply switch.
2. Discharge all four electrolytic capacitors completely.
3. Execute continuity test with a tester.
+
–
BU
BV
BW
U
V
W
BX
BY
BZ
BZ BY BX W BW V BV U BU
+
–
Tester rod
+
–
Case that product is good
– 98 –
+
U
V
U
W
V
W
–
W
1M or more 100k to 300k
–
U
V
200k
U
V
+
to 300k
W
10-9. How to Simply Judge Whether Outdoor Fan Motor is Good or Bad
1. Symptom
• Outdoor fan motor does not rotate.
• Outdoor fan motor stops within several tens seconds though it started rotating.
• Outdoor fan motor rotates or does not rotate according to the position where the fan stopped., etc.
Remote control check code “02 : Outdoor block, 1A : Outdoor fan drive system error”
2. Cause
The following causes are considered when the outdoor fan motor does not normally rotate.
1) Mechanical lock of the outdoor fan motor
2) Winding error of the outdoor fan motor
3) Position-detect circuit error inside of the outdoor fan motor
or
4) Motor drive circuit error of the outdoor P.C. board
3. How to simply judge whether outdoor fan motor is good or bad
Turn OFF the breaker.
Disconnect two connectors (CN300 and CN301)
of the outdoor fan motor from the inverter.
Does the fan rotate without trouble
when rotating it with hands?
NO
YES
If the resistance value between
1 (Red lead)
– 2 (White lead)
2 (White lead)
– 3 (Black lead)
3 (Black lead)
– 1 (Red lead)
of the connector
(CN300 : Motor winding)
is 25 to 55 , it is normal.
CN300
NO
YES
If the resistance value between
1 (Yellow lead)
– 4 (Pink lead)
of the connector
(CN301 : Motor position detection)
is 5k to 20k , it is normal.
NO
YES
Fan motor error
Fan motor is normal.
(Outdoor P.C. board error)
NOTE :
However, GND circuit error inside of the motor may be accepted in some cases when the above check is
performed.
When the fan motor does not become normal even if P.C. board is replaced, replace the outdoor fan motor.
– 99 –
11. HOW TO REPLACE THE MAIN PARTS
11-1. Indoor Unit
No.
1
Part name
Front panel
Procedures
How to remove the front panel
1) Stop operation of the air conditioner and
turn off its main power supply.
2) Pull the air inlet grille toward you to open it
and remove the air inlet grille.
Then remove the 4 screws fixing the front
panel.
3) First open the horizontal louver, and then
remove the front panel from the back body
by pulling it toward you.
Remarks
2
2
2
2 4-Screws
3
How to mount the front panel
Push the front panel back in and make
sure all hooks are locked.
2
Electrical part
How to remove the electrical part.
1) Remove the front panel with procedure 1.
2) Remove the screw holding the electrical
part cover.
3) Remove the drain guide.
4) Disconnect the 2 connectors (3P) for the
fan motor and the connector (5P) for the
louver motor from the P.C. board assembly.
5) Pull out the TC sensor from the sensor
holder.
6) Remove the screw for the ground
connection, remove the screw for the
electrical part box and remove the screw
from the LED unit. Then remove the LED
unit and the electrical part box from the
main unit.
How to mount the electrical part.
1) To put back the electrical part box, lock it
to the upper hook of the back body.
2) Tighten the screw on the electrical part
box.
3) Connect the 3 connectors and arrange the
wiring same as original condition and then
tighten the screw from the LED unit to the
back body.
4) Attach the TC sensor to the holder.
5) Tighten the screw for the ground connection.
6) Assemble the drain guide (the TC sensor
wire should be covered by the drain guide).
7) Tighten the screw on the electrical part cover.
3
Horizontal
louver
1) Remove the front panel and the electrical
part following procedure 2.
2) Remove the center shaft of the horizontal
louver from the back body.
3) Remove the left shaft from the back body.
4) Remove the horizontal louver from the
back body.
– 100 –
2 Screws
3 Drain guide
5 TC Sensor
6 Screws
4
3-Connectors
6 Screws
3 Left shaft
2 Center shaft
No.
Part name
Procedures
4
Heat exchanger
1) Remove the front panel, electrical part
and the horizontal louver following
procedure 3.
2) Remove the pipe holder at the rear side of
main unit.
3) Remove the 2 screws on the heat
exchanger at the base bearing.
4) Remove the 2 screws on the heat
exchanger at the 2 fixed plates (upper and
lower) from the back body, and then pull
out the upper side of the heat exchanger
slowly.
Remarks
2 Pipe holder
3 2-Screws
4 2-Screws
5
Cross flow fan
1) Remove the front panel, electrical part,
horizontal louver and the heat exchanger
following procedure 4.
2) Remove the 2 screws on the band motor
(L) and remove the 2 screws on the band
motor (R) and then remove the cross flow
fan.
3) Loosen the set screw of the cross flow fan
then separate the fan and the fan motor.
Notice
To assemble cross flow fan and fan motor to
the unit, please turn the fan motor unit the
center of its terminal meets the lowest point
of band motor (R) (point A).
Fix the cross flow fan with the set screw at
the position where the gap between the back
body and the right surface of the cross flow
fan is 4 mm.
6
Base bearing
1) Remove the front panel, electrical part,
horizontal louver, heat exchanger and the
cross flow fan following procedure 5.
2) Remove the 2 screws fixing the base
bearing.
3) Remove the bearing from the base
bearing. If the housing protrudes from the
base bearing, put the housing in position
and attach the bearing to the base
bearing.
– 101 –
2 2-Screws (R)
2 2-Screws (L)
5 mm
3 Set screws
Middle of the fan motor terminal
2 2-Screws
11-2. Microcomputer
No.

Part name
Common
procedure
Procedure
1) Turn the power supply off to stop the operation of
air-conditioner.
2) Remove the front panel.
Remarks
Replace the thermal fuse, terminal
block, microcomputer ass’y and the
P.C. board ass’y.
• Remove the two fixing screws. (Ø4 x 14 )
3) Remove the electrical part base.
11-3. Outdoor Unit
No.

Part name
Common
proceure
Procedure
Remarks
1. Detachment
Air outlet panel
1) Stop operation of the air conditioner, and turn “OFF”
the power breaker.
Fan
guard
Upper panel
Back panel
2) Remove the side panel. (Ø4 x 10 3 pcs.)
Side panel
3) Remove the cord clamp. (Ø4 x 22 5 x 2=10 pcs.)
Disconnect the connecting cables and power cord from
the terminals.
4
4) Remove the upper panel. (Ø4 x 10 6 pcs)
5) Remove the front panel. (Ø4 x 10 3 pcs.)
6) Remove the back panel. (Ø4 x 10 6 pcs)
7) Remove the air outlet panel. (Ø4 x 10 8 pcs)
– 102 –
Front panel
No.
‚
Part name
Inverter
assembly
Procedure
Remarks
1. Detachment
1) Perform work from item 1) to 5) of .
Inverter cover
P.C. board
(Soldered surface)
2) Remove screw (ST1T Ø4 x 10 1 pc.) of the upper
left part of the inverter cover.
• If removing the inverter cover in this condition,
P.C. board can be checked.
• If there is no space in the upper part of the upper
cabinet, perform work from 6) to 7) of  and
remove the partition fixing plate
(ST1T Ø4 x 10 1 pc.).
Be careful to check the inverter because
high-voltage circuit is incorporated in it.
3) Perform discharging by connecting the discharging
resistance (approx. 100Ω 40W) or plug of soldering
terminals of the C15 (printed “CAUiron to ,
TION HIGH VOLTAGE” is attached.) electrolytic
capacitor (760µF) on P.C. board.
Fixing plate
(Partition)
Be careful to discharge the capacitor because the electrolytic capacitor cannot
naturally discharge and voltage remains
according to trouble type in some cases.
NOTE :
This capacitor is one with mass capacity.
Therefore, it is dangerous that a large spark
generates if short-circuiting between ,
polarity with screwdriver, etc. for discharging.
4) Remove screw (Ø4 x 10 2 pcs.) fixing the valve
clamping plate/the inverter box, and fixing the back
panel/the inverter box.
5) Remove various lead wires from the holder at
upper part of the inverter box and cut 2 tie-lap ties
binding each lead wires :
The holder at upper part.
6) Pull the inverter box upward.
7) Disconnect connectors of various lead wires.
Tie-lap ties (2 pcs)
– 103 –
No.
ƒ
Part name
Control
board
assembly
Procedure
Remarks
1) Disconnect lead wires and connectors connected from
the control board assembly to other parts.
1. Lead wires
• Connection with terminal block : 10 wires
(Red, Orange, Pink, Yellow,
Two black wires, Four white wires
• Connection with compressor :
Remove the fastons (3 places).
• Connection with reactor :
Remove the connector from P08, 09 (2P, White)
and P12, P13 (2P, Gray).
CN601~
CN608
CN301 CN300
CN704
CN703
CN702
CN701
• Connection with 4-way valve :
Remove the connector (3P).
• Connection with case thermo. :
Remove the connector (2P).
2. Connectors
• Sub-control board assembly side
CN300 : Outdoor fan (3P, White)
CN301 : Outdoor fan position detection (5P, White)
CN601 : TO sensor (2P, White)
CN602 : TD sensor (3P, White)
CN603 : TS sensor (2P, Black)
CN604 : TE sensor (2P, White)
CN605 : TGa sensor (3P, Yellow)
CN606 : TGb sensor (3P, White)
CN607 : TGc sensor (3P, Green)
CN608 : TGd sensor (3P, Blue)
CN701 : A room pulse modulating valve (6P, Yellow)
CN702 : B room pulse modulating valve (6P, White)
CN703 : C room pulse modulating valve (6P, Red)
CN704 : D room pulse modulating valve (6P, Blue)
CN300, CN302, CN303, CN501,
CN604, CN606, CN701, CN702,
CN703, CN704, 4-way valve
connector, case thermo. connector
at the sub-control board assembly
side are connectors with locks.
Therefore, remove the connector
while pushing the part indicated by
an arrow.
2) Disconnect cable connecting the main control board
assembly side and sub-control board assembly.
• Main control board assembly side
CN06 : Connecting cable (5P, White)
• Sub.-control board assembly side
CN800 : Connecting cable (5P, Red)
3) Remove the control board assembly from P.C. board
base.
1. Main control board assembly side
• Remove two claws of P.C. board base, and remove
upward the heat sink by hands.
• Remove three screws fixing the heat sink and main
control board assembly side, and replace the board
with a new one.
2. Sub- control board assembly side
• Remove P.C. board base from the inverter box.
• Remove three claws of P.C. board base, and
replace the board with a new one.
– 104 –
P.C. board base
P.C. board
When mounting a new board, check
that the board is correctly set in the
groove of base holder of P.C. board
base.
No.
„
Part name
Fan motor
Procedure
Remarks
1) Perform work from item 1) to 5), 7) of .
2) Remove the flange nut fixing the fan motor and the
propeller fan.
• Flange nut is loosened by turning clockwise.
(To tighten the flange nut, turn counterclock-wise.)
3) Remove the propeller fan.
4) Disconnect the connector for fan motor from the inverter.
5) Remove the fixing screws (3 pcs.), while holding by
hands so that the fan motor does not fall.
Fan
motor
Flange nut
…
Compressor
Propeller fan
1) Perform work of item , ‚ and „.
2) Evacuate refrigerant gas.
3) Remove the partition board.
(Take care that the reactor and the partition fixing plate
remain.) (Ø4 x 10 3 pcs.)
4) Remove the sound-insulation materials.
5) Remove terminal cover of the compressor, and disconnect lead wires of the compressor and the compressor
thermo. assembly from the terminal.
6) Remove pipes connected to the compressor with a
burner.
Valve
clamping
plate
7) Remove the fixing screws of the bottom plate and heat
exchanger. (Ø4 x 10 2 pcs.)
Compressor
thermo.
8) Remove the fixing screws of the bottom plate and valve
clamping plate (Ø4 x 10 2 pcs.), the accumulator fixing
plate and the accumlator (Ø4 x 10 2 pcs.).
Compressor
9) Pull upward the refrigeration cycle.
10) Remove nut fixing the compressor on the bottom plate.
Partition board
†
Reactor
1) Perform work from item 1) to 5) of  and ‚.
2) Remove screws fixing the reactor. (Ø4 x 10 2 pcs. for
one reactor. One outdoor unit has two reactors on the
partition.)
– 105 –
Reactor
No.
Part name
‡
Pulse
modulating valve
coil
Procedure
Remarks
1. Detachment
1) Perform work of item  and ‚.
2) Release the coil from the notch by turning it, and remove
coil from the pulse modulating valve.
PMV coil
Positioning bracket
at coil side
Lead wire
take-out port
2. Attachment
1) Put the coil deep into the bottom position.
2) Fix the coil firmly by turning it to the notch position.
The pulse modulating valve has A, B, C and D room
side.
After mounting it, check that coil at B room side
(Nothing is marked on the pulse modulating valve.)
is connected to CN702.
Check that coil at C room side (Red marking is
marked on the pulse modulat-ing valve.) is connected to CN703. Check that coil at D room side
(Blue marking is marked on the pulse modulating
valve) is connected to CN704 of the control board
assembly respectively.
ID mark
Positioning concavity
at PMV unit side
(30˚ pitch)
ID mark
PMV unit
Mounting Method of
Pulse Motor Valve (PMV) Coil
Set the positioning bracket on the
PMV coil to a concavity at PMV unit
side and fix PMV coil. In this time,
match color of ID mark at the coil
side with that of ID mark at the PMV
unit side. Make sure also that pipes
do not deform when inserting and
fixing the coil.
ˆ
Fan guard
1. Detachment
1) Perform work of item .
2) Remove the front cabinet, and put it down so that fan
guard side directs downward.
Perform work on a corrugated cardboard, cloth, etc.
to prevent flaw to the product.
3) Remove the hooking claws by pushing minus screwdriver
according to the arrow mark in the right figure, and
remove the fan guard.
2. Attachment
1) Insert claw of the fan guard in the hole of the air outlet
panel. Push the hooking claws (5 positions) by hands and
fix the claws.
After all the attaching works are complected, check
that all the hooking claws are fixed to the specified
positions.
– 106 –
Minus screwdriver
Hooking claw
No.
Part name
‰
Replacement of temperature sensor for servicing
only
Common service parts of
sensor TO, TS, TE, TGa,
TGb, TGc, TGd
(without TD)
Procedure
Remarks
1) Cut the sensor 100 mm longer than old
one.
2) Cut the protective tube after pulling out
it (200 mm).
Cutting here
Connector 100
Thermal
sensor part
3) Move the protective tube toward the
thermal sensor side and tear the tip of
lead wire in two then strip the covering
part.
Cutting here
200
15
4) Pass the stripped part through the
thermal constringent tube.
Thermal
constringent tube
5) Cut the old sensor 100 mm length on
the connector side, and recycle that
connector.
Cutting here
6) Tear the lead wire in two on the connector side and strip the covering part.
100
7) Twist the leads on the connector and
sensor sides, and solder them.
15
8) Move the thermal constringent tubes
toward the soldered parts and heat
them with the dryer and constring them.
70
Soldered part
9) Wind the attached color tape round the
both terminals of the protective tube
when colored protective tube is used.
10)Fix the sensor again.
Dryer
NOTES :
1) Store the joint part of the sensor and
the connector in the electric parts box.
Winding the color tape
2) Never joint them near the thermal
sensor part. Otherwise it would cause
insulation inferiority because of dew
drops.
3) When replacing the sensor using the
colored protective tube, wind the color
tape matching the color of that tube.
These are parts for
servicing sensors.
Please check that the
accessories shown in the
right table are packed.
Parts name
Q’ty
Remarks
1
Sensor
1
Length : 3m
2
Sensor Spring (A)
1
For spare
3
Sensor Spring (B)
1
For spare
4
Thermal constringent tube
3
Including one spare
5
Color tape
1
9 colors
6
Terminal
3
– 107 –
70
<MCC-1359>
– 108 –
<MCC-818>
– 109 –
12. EXPLODED VIEWS AND PARTS LIST
12-1. Indoor Unit (1)
RAS-M10UKV-E3, RAS-M13UKV-E3, RAS-M16UKV-E3
RAS-M10UKCV-E3, RAS-M13UKCV-E3, RAS-M16UKCV-E3
406
405
403
402
404
Location Part No.
No.
401
401
Description
404
Temperature Sensor
TC, 10kΩ, 25°C
43T60002 Terminal Block, 3P,
AC 300V, 20A
43T69320 Temperature Sensor
TC, 10kΩ, 25°C
43T62003 Cord Clamp
405
43T69079
402
403
43T69319
Location
Part No.
No.
406
43T69330
P.C. Board Ass’y,
WRS-LED
– 110 –
406
43T69331
406
43T69332
406
43T69333
406
43T69334
406
43T69335
Description
P.C. Board Ass’y,
MCC-867 (RAS-M10UKV-E3)
P.C. Board Ass’y,
MCC-867 (RAS-M13UKV-E3)
P.C. Board Ass’y,
MCC-867 (RAS-M16UKV-E3)
P.C. Board Ass’y,
MCC-867 (RAS-M10UKCV-E3)
P.C. Board Ass’y,
MCC-867 (RAS-M13UKCV-E3)
P.C. Board Ass’y,
MCC-867 (RAS-M16UKCV-E3)
217
216
Indoor Unit
217
RAS-M10UKV-E3,
RAS-M13UKV-E3,
RAS-M16UKV-E3,
RAS-M10UKCV-E3,
RAS-M13UKCV-E3,
RAS-M16UKCV-E3
214
210
211
218
225
208
215
203
212
219
220
201
205
207
204
233
222
223
224
202
221
209
231
232
229
204
234
Location
Part No.
No.
201
202
203
204
205
206
206
207
208
209
210
210
211
212
212
214
214
215
216
228
227
206
Description
226
Electric Parts
Assembly
Location
Part No.
No.
43T00391 Front Panel Assy
43T09326 Inlet Grille Assy
43T03302 Back body Assy
43T80301 Air Filter
43T09328 Horizontal Louver
43T08392 LED Panel Assy
(For RAS-M10,13,16UKV-E3)
43T08393 LED Panel Assy
(For RAS-M10,13,16UKCV-E3)
43T70002 Drain Hose
43T79301 Cap Drain
43T21321 Motor Stepping
43T44341 Refrigeration Cycle Assy
(For RAS-M10,13UKV-E3/UKCV-E3)
43T44342 Refrigeration Cycle Assy
(For RAS-M16UKV-E3/UKCV-E3)
43T47006 Pipe Delivery
43T47016 Pipe Suction
(For RAS-M16UKV-E3/UKCV-E3)
43T47305 Pipe Suction
(For RAS-M10,13UKV-E3/UKCV-E3)
43T11301 Pipe Shield
(For RAS-M10,13UKV-E3/UKCV-E3)
43T11302 Pipe Shield
(For RAS-M16UKV-E3/UKCV-E3)
43T19302 Holder Sensor
43T49302 Plate Of Eva Seal
– 111 –
217
218
219
220
221
222
223
224
225
226
43T49006
43T79302
43T22002
43T39301
43T20302
43T39302
43T21327
43T39303
43T82301
43T69310
226
43T69327
227
228
228
228
229
231
232
233
234
43T83003
43T85425
43T85426
43T85457
43T62302
43T60317
43T60316
43T07303
43T01303
Description
Holder For Plate
Guide Drain
Asm M Bearing
Base Bearing
Fan Cross Flow
Band Motor-L
Motor Fan
Band Motor-R
Plate Installation
Wireless Remocon
(For RAS-M10,13,16UKCV-E3)
Wireless Remocon
(For RAS-M10,13,16UKV-E3)
Holder Remote Controller
Owner's Manual
Owner's Manual
Owner's Manual
Terminal Cover
Cord Motor Louver
Cord Motor Fan
Holder Pipe
Mark
12.2. Outdoor Unit
4
RAS-4M27YAV-E/
RAS-4M27YACV-E/
RAS-3M26YAV-E
11, 42
6
35
39
23 24
25
43
37
34
32 33
26
12 15
13 18
21
Location
Part No.
No.
1
2
3
4
5
6
7
8
9
10
43005481
43005490
43005480
43005491
43050406
43005489
43191630
43122065
43005482
43041772
11
43043659
12
13
14
15
16
17
18
19
20
21
22
43046402
43046403
43047648
43047647
43047646
43147196
43047401
43147195
43047545
43047546
43194038
5
8
Description
2
14
17
20
16, 19, 22
29
27
36
28
38
7
1
3
30
9
Location
Part No.
No.
Cabinet, Back, Ass’y
Cabinet, Side, Ass’y
Cabinet, Front, Ass’y
Panel, Upper
Cabinet, Air Outlet
Guard, Fin
Guard, Fan
Bell Mouth, Plastic
Base Ass’y
Compressor Ass’y
DA220A2F-20L
Condenser Ass’y
(4M27YACV-E)
Valve, Packed, 9.52 DIA
Valve, Packed, 12.7 DIA
Socket, 6.35 DIA
Socket, 9.52 DIA
Socket, 12.7 DIA
Bonnet, 1/4 IN, 6.4 CU
Bonnet, 3/8 IN, 9.52 CU
Bonnet, 1/2 IN
Nut, Flare, 1/4 IN
Nut, Flare 3/8 IN
Nut, Flare 1/2 IN
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
10
31
Description
43046385
Valve, Pulse, Modulating,
SKV-18D26
43046404 Coil, PMV, DKV-MOZS770B0
43049740 Holder, Sensor
43019822 Holder, Sensor, SUS
43019904 Holder, Sensor, SUS
43050298 Thermostat, Bimetal,
CS-7 125
43063195 Holder, Thermostat, Bimetal
43049739 Cushion, Rubber
43097204 Nut
43197156 Nut, Flange
43120198 Fan, Propeller, PB493
43121677 Motor, Fan, DC,
ICF-140-60-1
43058266 Reactor, CH-47-Z-K
43048066 Accumulator Ass’y
4301V021 Hanger
43119390 Hanger
4308N369 Manual
43046344 Valve, 4-Way, CHV-0213
43046348 Coil, Solenoid,
VHV-01AI501A1
43043663 Condensor Ass’y
43032441 Nipple, Drain
No. 24 Coil, P.M.V : For standardization of the servicing parts, one type only is provided.
Therefore, color of the connector may be different in replacement work.
– 112 –
12.3. P.C. Board Layout
RAS-4M27YAV-E
711
705
703
TO Sensor
TE Sensor
TS Sensor
TD Sensor
700
704
706
708
702
Location Part No.
No.
700
701
702
703
704
701
Description
Location
Part No.
No.
705
706
708
43162042 Base, P.C. Board, ABS
4306A060 Terminal Block, 3P
43160469 Terminal Block, 6P
AC 250V, 20A
43063318 Heatsink
43050334 Sensor, TD (F4)
711
– 113 –
TGa Sensor
TGb Sensor
TGc Sensor
TGd Sensor
Description
43050382 Sensor, TC (F6)
43050398 Sensor, TG (F4)
4306S267 P.C. Board Ass’y, MCC-818
(4M27YAV-E)
4306V009 P.C. Board Ass’y, IPDU
MCC-1359
RAS-4M27YACV-E
711
705
703
TO Sensor
TGa Sensor
TGb Sensor
TGc Sensor
TGd Sensor
TD Sensor
700
704
710
702
Location
Part No.
No.
700
701
702
703
704
701
Description
Location Part No.
No.
705
710
43162042 Base, P.C. Board, ABS
4306A060 Terminal Block, 3P
43160469 Terminal Block, 6P
AC 250V, 20A
43063318 Heatsink
43050334 Sensor, TD (F4)
711
– 114 –
Description
43050382 Sensor, TC (F6)
4306S269 P.C. Board Ass’y, MCC-818
(4M27YACV-E)
4306V009 P.C. Board Ass’y, IPDU
MCC-1359
RAS-3M26YAV-E
711
705
703
TO Sensor
TE Sensor
TS Sensor
TD Sensor
700
704
706
709
702
Location Part No.
No.
700
701
702
703
704
701
Description
Location
Part No.
No.
705
706
709
43162042 Base, P.C. Board, ABS
4306A060 Terminal Block, 3P
43160469 Terminal Block, 6P
AC 250V, 20A
43063318 Heatsink
43050334 Sensor, TD (F4)
711
– 115 –
TGa Sensor
TGb Sensor
TGc Sensor
Description
43050382 Sensor, TC (F6)
43050398 Sensor, TG (F4)
4306S268 P.C. Board Ass’y, MCC-818
(3M26YAV-E)
4306V009 P.C. Board Ass’y, IPDU
MCC-1359
TOSHIBA CARRIER (THAILAND) CO.,LTD.
144/9 MOO 5, BANGKADI INDUSTRIAL PARK, TIVANON ROAD, TAMBOL BANGKADI,
AMPHUR MUANG, PATHUMTHANI 12000, THAILAND.