Sinclair SDV4 series Operating manual

FULL DC INVERTER SYSTEMS
TECHNICAL SERVICE MANUAL
INDOOR UNITS WITH DC FAN MOTOR
COMMERCIAL AI R CO NDIT IO NE RS S DV4

1
Original instructions
The pictures of units and accessories are illustrative only.
Technical specifications of the products are subject of change based on further development of
the units by the producer and may be changed without prior notice

2
Content
Compact four-way cassette units ..................................4
Four-way cassette units................................................22
Wall mounted units........................................................44
Ceiling & floor standing units.......................................66
Duct units.......................................................................92
High static pressure duct units..................................120
Fresh air processing duct units .................................150
Due to the DC fan motor, these indoor unit can meet the latest CE certification requirements.

Compact four-way cassette indoor units with DC fan motor
3

Compact four-way cassette indoor units with DC fan motor
4
Compact four-way cassette indoor units
with DC fan motor
Features ................................................................................5
Specifications ......................................................................7
Dimensions...........................................................................9
Service Spaces ..................................................................10
Piping Diagrams (EXV beside)........................................ 11
Wiring Diagrams................................................................ 12
Capacity Tables..................................................................13
Electrical Characteristics................................................. 18
Sound Levels .....................................................................19
Accessories........................................................................20

Compact four-way cassette indoor units with DC fan motor
5
1. Features
1.1 Low operation noise, quiet design for user comfort
Streamline plate ensures quietness
Creates natural and comfortable environment
1.2 Efficient cooling
Equal, fast and wide—range cooling
1.3 The adoption of the most advanced 3- Dimensional Screw fan
Reduces the air resistance passing through and operating sound.
Smoothes air flow
Makes air speed distribution to the heat exchange uniform.
1.4 Improvement for easy installation and maintenance
Little space is required for installation into a shallow ceiling,
Extremely compact casing (570mm in width and depth) enables unit to fit flush into ceilings and match
standard architectural modules
Because of the compactness and weight reduction of the main unit and panel, all models can be installed
without a hoist.
1.5 360°Air Flow Panel
3600 air outlet makes equal, fast and wide range cooling
1.6 Optimal design, smaller Control Box, Space saving and convenient for wiring
Using fire resistance galvanized steel for E-box material. Metal box makes the control part more stable
and prevents damaging
1.7 Drain up pump with 500mm lift fitted as standard, max. up to 600mm head which can be
customized.
570mm
260mm

Compact four-way cassette indoor units with DC fan motor
6
1.8 Adopting DC fan motor.
1.8.1 Efficiency can be up to 90%. Contrast with theAC fan motor, the power consumption of DC fan motor
can reduce up to 30%.
1.8.2 The motor adopts fully enclosed structure design. The motor bearing can operate 80,000 hours
continuously and easy for maintenance.

Compact four-way cassette indoor units with DC fan motor
7
2. Specifications
Model
SDV4-22CAF
SDV4-28CAF
Power supply
V-ph-Hz
220-240V~1Ph~50/60Hz
Cooling
Capacity
kW
2.2
2.8
Input
W
15
16
Rated current
A
0.26
0.26
Heating
Capacity
kW
2.4
3.2
Input
W
13
13
Rated current
A
0.26
0.26
Indoor fan
motor
Model
WZDK37-38G
WZDK37-38G
Type
DC Motor
DC Motor
Input
W
19.5
19.5
Speed(h/m/l)
r/min
730/640/530/440
730/640/530/440
Indoor coil
Number of rows
1
1
Tube pitch(a)x row pitch(b)
mm
21×13.37
Fin spacing
mm
1.5
1.5
Fin type (code)
Hydrophilic aluminium
Tube outside dia. and type
mm
Ф6.35
Ф6.35
Inner groove tube
Coil length x height x width
mm
1310×210×13.37
Number of circuits
2
2
Indoor air flow (H/M/L)
m3/h
526/449/364
576/503/405
CFM
309/264/214
339/296/238
Sound level (sound pressure)
dB(A)
34/32/22
34/32/22
Indoor unit
Dimension (W× H×D)
mm
570×260×570
Packing (W×H×D)
mm
675×285×675
Net/Gross weight
kg
16/22
Panel
Dimension (W× H×D)
mm
647×50×647
Packing (W× H×D)
mm
715×113×715
Net/Gross weight
kg
3/5
Refrigerant
Type
R410a
R410a
Throttle
Electrical expansive valve
Design pressure(H/L)
MPa
4.4/2.6
4.4/2.6
Refrigerant
piping
Liquid side
mm
Ф6.35
Ф6.35
Gas side
mm
Ф12.7
Ф12.7
Connection
wiring
Power wiring
mm2
3×2.0
Signal wiring
mm2
3×0.5（3-core shielded wire）
Drainage water pipe diameter
mm
OD Ф25
OD Ф25
controller
Wireless remote controller (RM05) (Standard)
Notes:
1. Nominal cooling capacities are based on the following conditions: return air temperature: 27°C DB, 19°C WB, and outdoor
temperature: 35°C DB, equivalent ref. piping: 8m (horizontal)
2. Nominal heating capacities are based on the following conditions: return air temperature: 20°C DB, outdoor temperature: 7°C
DB, 6°C WB, and equivalent ref. piping: 8m (horizontal)

Compact four-way cassette indoor units with DC fan motor
8
Model
SDV4-36CAF
SDV4-45CAF
Power supply
V-ph-Hz
220-240V~1Ph~50/60Hz
220-240V~1Ph~50/60Hz
Cooling
Capacity
kW
3.6
4.5
Input
W
21
21
Rated current
A
0.28
0.28
Heating
Capacity
kW
4
5
Input
W
18
18
Rated current
A
0.28
0.28
Indoor fan
motor
Model
WZDK37-38G
WZDK37-38G
Type
DC Motor
DC Motor
Input
W
23.6
23.6
Speed(h/m/l)
r/min
810/700/570/450
810/700/570/450
Indoor coil
Number of rows
2
2
Tube pitch(a)x row pitch(b)
mm
21×13.37
21×13.37
Fin spacing
mm
1.5
1.5
Fin type (code)
Hydrophilic aluminium
Tube outside dia. and type
mm
Ф6.35
Ф6.35
Inner groove tube
Coil length x height x width
mm
1310×210×26.74
Number of circuits
4
4
Indoor air flow (H/M/L)
m3/h
604/516/400
604/516/400
CFM
336/304/235
336/304/235
Sound level (sound pressure)
dB(A)
40/34/27
40/34/27
Indoor unit
Dimension (W× H×D)
mm
570×260×570
Packing (W×H×D)
mm
675×285×675
Net/Gross weight
kg
17.5/23.5
17.5/23.5
Panel
Dimension (W× H×D)
mm
647×50×647
Packing (W× H×D)
mm
715×113×715
Net/Gross weight
kg
3/5
Refrigerant
Type
R410a
R410a
Throttle
Electrical expansive valve
Design pressure(H/L)
MPa
4.4/2.6
4.4/2.6
Refrigerant
piping
Liquid side
mm
Ф6.35
Ф6.35
Gas side
mm
Ф12.7
Ф12.7
Connection
wiring
Power wiring
mm2
3×2.0
3×2.0
Signal wiring
mm2
3×0.5（3-core shielded wire）
Drainage water pipe diameter
mm
OD Ф25
OD Ф25
controller
Wireless remote controller (RM05) (Standard)
Notes:
1. Nominal cooling capacities are based on the following conditions: return air temperature: 27°C DB, 19°C WB, and outdoor
temperature: 35°C DB, equivalent ref. piping: 8m (horizontal)
2. Nominal heating capacities are based on the following conditions: return air temperature: 20°C DB, outdoor temperature: 7°C
DB, 6°C WB, and equivalent ref. piping: 8m horizontal)

Compact four-way cassette indoor units with DC fan motor
9
3. Dimensions
Unit: mm

Compact four-way cassette indoor units with DC fan motor
10
4. Service Spaces
There is enough room for installation and maintenance.
The ceiling is horizontal, and its structure can endure the weight of the indoor unit.
The outlet and the inlet are not impeded, and the influence of external air is the least.
The air flow can reach throughout the room.
The connecting pipe and drainpipe could be extracted out easily.
There is no direct radiation from heaters.
Unit：mm
Keep more than 2.3m distance between the panel and ground of the room.
Keep at least 1m to the wall of each side.
＞2300
A≥280

Compact four-way cassette indoor units with DC fan motor
11
5. Piping Diagrams (EXV beside)
flare nut
flare nut
T2B
gas side
motor
heat exchanger
fan
EXV liquid side
T2
T1
T1: Room temperature;
T2: Temperature of middle evaporator;
T2B: Temperature of evaporator outlet.

Compact four-way cassette indoor units with DC fan motor
12
6. Wiring Diagrams
SDV4-22CAF, SDV4-28CAF, SDV4-36CAF, SDV4-45CAF

Compact four-way cassette indoor units with DC fan motor
13
Function setting indication

Compact four-way cassette indoor units with DC fan motor
14
7. Capacity Tables
7.1 Cooling
TC: total capacity SC: sensible capacity WB: wet-bulb temperature DB: dry-bulb temperature
Indoor
Unit size
(kW)
Outdoor
temperature
(°C DB)
Indoor temperature (°C WB/DB)
14/20
16/23
18/26
19/27
20/28
22/30
24/32
TC
SC
TC
SC
TC
SC
TC
SC
TC
SC
TC
SC
TC
SC
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
2.2
10
1.5
1.4
1.8
1.5
2.1
1.6
2.2
1.6
2.3
1.7
2.6
1.7
2.9
1.7
12
1.5
1.4
1.8
1.5
2.1
1.6
2.2
1.6
2.3
1.7
2.6
1.7
2.8
1.6
14
1.5
1.4
1.8
1.5
2.1
1.6
2.2
1.6
2.3
1.7
2.6
1.7
2.8
1.6
16
1.5
1.4
1.8
1.5
2.1
1.6
2.2
1.6
2.3
1.7
2.6
1.7
2.8
1.6
18
1.5
1.4
1.8
1.5
2.1
1.6
2.2
1.6
2.3
1.7
2.6
1.7
2.8
1.6
20
1.5
1.4
1.8
1.5
2.1
1.6
2.2
1.6
2.3
1.7
2.6
1.7
2.7
1.5
21
1.5
1.4
1.8
1.5
2.1
1.6
2.2
1.6
2.3
1.7
2.6
1.7
2.7
1.5
23
1.5
1.4
1.8
1.5
2.1
1.6
2.2
1.6
2.3
1.7
2.5
1.6
2.7
1.5
25
1.5
1.4
1.8
1.5
2.1
1.6
2.2
1.6
2.3
1.7
2.5
1.6
2.6
1.5
27
1.5
1.4
1.8
1.5
2.1
1.6
2.2
1.6
2.3
1.7
2.5
1.6
2.6
1.5
29
1.5
1.4
1.8
1.5
2.1
1.6
2.2
1.6
2.3
1.7
2.4
1.5
2.5
1.5
31
1.5
1.4
1.8
1.5
2.1
1.6
2.2
1.6
2.3
1.7
2.4
1.5
2.5
1.5
33
1.5
1.4
1.8
1.5
2.1
1.6
2.2
1.6
2.3
1.7
2.4
1.5
2.4
1.5
35
1.5
1.4
1.8
1.5
2.1
1.6
2.2
1.6
2.3
1.7
2.3
1.5
2.4
1.5
37
1.5
1.4
1.8
1.5
2.1
1.6
2.2
1.6
2.3
1.7
2.3
1.5
2.3
1.5
39
1.5
1.4
1.8
1.5
2.1
1.6
2.2
1.6
2.2
1.6
2.3
1.5
2.3
1.5
42
1.5
1.4
1.8
1.5
2.1
1.6
2.2
1.6
2.2
1.6
2.3
1.5
2.3
1.5
44
1.5
1.4
1.8
1.5
2.1
1.6
2.2
1.6
2.2
1.6
2.3
1.5
2.3
1.5
46
1.5
1.4
1.8
1.5
2.1
1.6
2.2
1.6
2.2
1.6
2.3
1.5
2.3
1.5
2.8
10
1.9
1.6
2.3
1.8
2.6
1.9
2.8
1.9
3.0
1.9
3.3
2.0
3.7
2.0
12
1.9
1.6
2.3
1.8
2.6
1.9
2.8
1.9
3.0
1.9
3.3
2.0
3.6
2.0
14
1.9
1.6
2.3
1.8
2.6
1.9
2.8
1.9
3.0
1.9
3.3
2.0
3.6
2.0
16
1.9
1.6
2.3
1.8
2.6
1.9
2.8
1.9
3.0
1.9
3.3
2.0
3.5
1.9
18
1.9
1.6
2.3
1.8
2.6
1.9
2.8
1.9
3.0
1.9
3.3
2.0
3.5
1.9
20
1.9
1.6
2.3
1.8
2.6
1.9
2.8
1.9
3.0
1.9
3.3
2.0
3.4
1.9
21
1.9
1.6
2.3
1.8
2.6
1.9
2.8
1.9
3.0
1.9
3.3
2.0
3.4
1.9
23
1.9
1.6
2.3
1.8
2.6
1.9
2.8
1.9
3.0
1.9
3.3
2.0
3.4
1.9
25
1.9
1.6
2.3
1.8
2.6
1.9
2.8
1.9
3.0
1.9
3.2
1.9
3.3
1.9
27
1.9
1.6
2.3
1.8
2.6
1.9
2.8
1.9
3.0
1.9
3.2
1.9
3.3
1.9
29
1.9
1.6
2.3
1.8
2.6
1.9
2.8
1.9
3.0
1.9
3.1
1.8
3.2
1.8
31
1.9
1.6
2.3
1.8
2.6
1.9
2.8
1.9
3.0
1.9
3.1
1.8
3.2
1.7
33
1.9
1.6
2.3
1.8
2.6
1.9
2.8
1.9
3.0
1.9
3.1
1.8
3.1
1.7
35
1.9
1.6
2.3
1.8
2.6
1.9
2.8
1.9
2.9
1.9
3.0
1.8
3.1
1.7
37
1.9
1.6
2.3
1.8
2.6
1.9
2.8
1.9
2.9
1.9
3.0
1.8
3.0
1.7
39
1.9
1.6
2.3
1.8
2.6
1.9
2.8
1.9
2.9
1.9
3.0
1.9
3.0
1.7
42
1.9
1.6
2.3
1.8
2.6
1.9
2.8
1.9
2.9
1.9
3.0
1.9
3.0
1.7
44
1.9
1.6
2.3
1.8
2.6
1.9
2.8
1.9
2.9
1.9
3.0
1.9
3.0
1.7
46
1.9
1.6
2.3
1.8
2.6
1.9
2.8
1.9
2.9
1.9
3.0
1.9
3.0
1.7

Compact four-way cassette indoor units with DC fan motor
15
Indoor
Unit size
(kW)
Outdoor
temperature
(°C DB)
Indoor temperature (°C WB/DB)
14/20
16/23
18/26
19/27
20/28
22/30
24/32
TC
SC
TC
SC
TC
SC
TC
SC
TC
SC
TC
SC
TC
SC
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
3.6
10
2.5
1.9
2.9
2.1
3.4
2.3
3.6
2.4
3.8
2.5
4.3
2.4
4.7
2.5
12
2.5
1.9
2.9
2.1
3.4
2.3
3.6
2.4
3.8
2.5
4.3
2.4
4.7
2.5
14
2.5
1.9
2.9
2.1
3.4
2.3
3.6
2.4
3.8
2.5
4.3
2.4
4.6
2.4
16
2.5
1.9
2.9
2.1
3.4
2.3
3.6
2.4
3.8
2.5
4.3
2.4
4.5
2.4
18
2.5
1.9
2.9
2.1
3.4
2.3
3.6
2.4
3.8
2.5
4.3
2.4
4.5
2.4
20
2.5
1.9
2.9
2.1
3.4
2.3
3.6
2.4
3.8
2.5
4.3
2.4
4.4
2.3
21
2.5
1.9
2.9
2.1
3.4
2.3
3.6
2.4
3.8
2.5
4.3
2.4
4.4
2.3
23
2.5
1.9
2.9
2.1
3.4
2.3
3.6
2.4
3.8
2.5
4.1
2.3
4.3
2.2
25
2.5
1.9
2.9
2.1
3.4
2.3
3.6
2.4
3.8
2.5
4.1
2.3
4.2
2.2
27
2.5
1.9
2.9
2.1
3.4
2.3
3.6
2.4
3.8
2.5
4.0
2.2
4.2
2.2
29
2.5
1.9
2.9
2.1
3.4
2.3
3.6
2.4
3.8
2.5
4.0
2.2
4.1
2.2
31
2.5
1.9
2.9
2.1
3.4
2.3
3.6
2.4
3.8
2.5
4.2
2.6
4.1
2.2
33
2.5
1.9
2.9
2.1
3.4
2.3
3.6
2.4
3.8
2.5
4.2
2.6
3.9
2.1
35
2.5
1.9
2.9
2.1
3.4
2.3
3.6
2.4
3.8
2.5
4.2
2.6
3.9
2.1
37
2.5
1.9
2.9
2.1
3.4
2.3
3.6
2.4
3.7
2.4
3.8
2.3
3.9
2.1
39
2.5
1.9
2.9
2.1
3.4
2.3
3.6
2.4
3.7
2.4
3.8
2.3
3.8
2.1
42
2.5
1.9
2.9
2.1
3.4
2.3
3.6
2.4
3.7
2.4
3.8
2.3
3.8
2.1
44
2.5
1.9
2.9
2.1
3.4
2.3
3.6
2.4
3.7
2.4
3.8
2.3
3.8
2.1
46
2.5
1.9
2.9
2.1
3.4
2.3
3.6
2.4
3.7
2.4
3.8
2.3
3.8
2.1
4.5
10
3.1
2.4
3.7
2.6
4.2
2.8
4.5
2.9
4.8
3.0
5.3
3.4
5.9
3.0
12
3.1
2.4
3.7
2.6
4.2
2.8
4.5
2.9
4.8
3.0
5.3
3.4
5.9
3.0
14
3.1
2.4
3.7
2.6
4.2
2.8
4.5
2.9
4.8
3.0
5.3
3.4
5.8
3.0
16
3.1
2.4
3.7
2.6
4.2
2.8
4.5
2.9
4.8
3.0
5.3
3.4
5.6
2.9
18
3.1
2.4
3.7
2.6
4.2
2.8
4.5
2.9
4.8
3.0
5.3
3.4
5.7
3.0
20
3.1
2.4
3.7
2.6
4.2
2.8
4.5
2.9
4.8
3.0
5.3
3.4
5.7
3.0
21
3.1
2.4
3.7
2.6
4.2
2.8
4.5
2.9
4.8
3.0
5.3
3.4
5.6
3.0
23
3.1
2.4
3.7
2.6
4.2
2.8
4.5
2.9
4.8
3.0
5.3
3.4
5.5
3.0
25
3.1
2.4
3.7
2.6
4.2
2.8
4.5
2.9
4.8
3.0
5.2
3.0
5.4
2.9
27
3.1
2.4
3.7
2.6
4.2
2.8
4.5
2.9
4.8
3.0
5.1
3.0
5.2
2.8
29
3.1
2.4
3.7
2.6
4.2
2.8
4.5
2.9
4.8
3.0
5.1
2.9
5.2
2.8
31
3.1
2.4
3.7
2.6
4.2
2.8
4.5
2.9
4.8
3.0
5.0
2.9
5.1
2.7
33
3.1
2.4
3.7
2.6
4.2
2.8
4.5
2.9
4.8
3.0
4.9
2.8
5.1
2.7
35
3.1
2.4
3.7
2.6
4.2
2.8
4.5
2.9
4.8
3.0
4.8
2.8
5.0
2.7
37
3.1
2.4
3.7
2.6
4.2
2.8
4.5
2.9
4.8
3.0
4.8
2.9
4.9
2.6
39
3.1
2.4
3.7
2.6
4.2
2.8
4.5
2.9
4.6
2.8
4.7
2.8
4.8
2.6
42
3.1
2.4
3.7
2.6
4.2
2.8
4.5
2.9
4.6
2.8
4.7
2.8
4.8
2.6
44
3.1
2.4
3.7
2.6
4.2
2.8
4.5
2.9
4.6
2.8
4.7
2.8
4.8
2.6
46
3.1
2.4
3.7
2.6
4.2
2.8
4.5
2.9
4.6
2.8
4.7
3.1
4.8
2.6

Compact four-way cassette indoor units with DC fan motor
16
7.2 Heating
TC: total capacity WB: wet-bulb temperature DB: dry-bulb temperature
Indoor Unit
size (kW)
Outdoor temperature
(°C)
Indoor temperature (°C DB)
16
18
20
21
22
24
TC
TC
TC
TC
TC
TC
WB
DB
kW
kW
kW
kW
kW
kW
2.2
-20
-19,8
1.34
1.34
1.34
1.34
1.34
1.34
-19
-18,8
1.44
1.44
1.44
1.44
1.44
1.44
-17
-16,7
1.51
1.51
1.51
1.51
1.51
1.51
-15
-14,7
1.56
1.56
1.56
1.56
1.56
1.56
-13
-12,6
1.66
1.66
1.66
1.66
1.66
1.66
-11
-10,5
1.68
1.70
1.70
1.70
1.70
1.70
-10
-9,5
1.75
1.75
1.75
1.75
1.75
1.75
-9,1
-8,5
1.80
1.80
1.80
1.80
1.80
1.80
-7,6
-7
1.82
1.82
1.82
1.82
1.82
1.82
-5,6
-5
1.90
1.90
1.90
1.90
1.90
1.90
-3,7
-3
1.99
1.99
1.99
1.99
1.99
1.99
-0,7
0
2.14
2.14
2.14
2.14
2.14
2.02
2,2
3
2.26
2.26
2.26
2.26
2.21
2.02
4,3
5
2.33
2.33
2.33
2.33
2.21
2.02
6,0
7
2.40
2.40
2.40
2.33
2.21
2.02
7,9
9
2.47
2.47
2.40
2.33
2.21
2.02
9,8
11
2.54
2.54
2.40
2.33
2.21
2.02
11,8
13
2.64
2.59
2.40
2.33
2.21
2.02
13,7
15
2.71
2.59
2.40
2.33
2.21
2.02
2.8
-20
-19,8
1.79
1.79
1.79
1.79
1.79
1.79
-19
-18,8
1.92
1.92
1.92
1.92
1.92
1.92
-17
-16,7
2.02
2.02
2.02
2.02
2.02
2.02
-15
-14,7
2.02
2.02
2.02
2.02
2.02
2.02
-13
-12,6
2.14
2.14
2.14
2.14
2.14
2.14
-11
-10,5
2.24
2.24
2.24
2.24
2.24
2.24
-10
-9,5
2.34
2.34
2.34
2.34
2.34
2.34
-9,1
-8,5
2.40
2.40
2.40
2.40
2.40
2.40
-7,6
-7
2.43
2.43
2.43
2.43
2.43
2.43
-5,6
-5
2.53
2.53
2.53
2.53
2.53
2.53
-3,7
-3
2.66
2.66
2.66
2.66
2.66
2.66
-0,7
0
2.85
2.85
2.85
2.85
2.85
2.69
2,2
3
3.01
3.01
3.01
3.01
2.94
2.69
4,3
5
3.10
3.10
3.10
3.10
2.94
2.69
6,0
7
3.20
3.20
3.20
3.10
2.94
2.69
7,9
9
3.30
3.30
3.20
3.10
2.94
2.69
9,8
11
3.39
3.39
3.20
3.10
2.94
2.69
11,8
13
3.52
3.46
3.20
3.10
2.94
2.69
13,7
15
3.62
3.46
3.20
3.10
2.94
2.69

Compact four-way cassette indoor units with DC fan motor
17
Indoor Unit
size (kW)
Outdoor temperature
(°C)
Indoor temperature (°C DB)
16
18
20
21
22
24
TC
TC
TC
TC
TC
TC
WB
DB
kW
kW
kW
kW
kW
kW
3.6
-20
-19,8
2.24
2.24
2.24
2.24
2.24
2.24
-19
-18,8
2.40
2.40
2.40
2.40
2.40
2.40
-17
-16,7
2.52
2.52
2.52
2.52
2.52
2.52
-15
-14,7
2.60
2.60
2.60
2.60
2.60
2.60
-13
-12,6
2.68
2.68
2.68
2.68
2.68
2.68
-11
-10,5
2.80
2.80
2.80
2.80
2.80
2.80
-10
-9,5
2.92
2.92
2.92
2.92
2.92
2.92
-9,1
-8,5
3.00
3.00
3.00
3.00
3.00
3.00
-7,6
-7
3.04
3.04
3.04
3.04
3.04
3.04
-5,6
-5
3.16
3.16
3.16
3.16
3.16
3.16
-3,7
-3
3.32
3.32
3.32
3.32
3.32
3.32
-0,7
0
3.56
3.56
3.56
3.56
3.56
3.36
2,2
3
3.76
3.76
3.76
3.76
3.68
3.36
4,3
5
3.88
3.88
3.88
3.88
3.68
3.36
6,0
7
4.00
4.00
4.00
3.88
3.68
3.36
7,9
9
4.12
4.12
4.00
3.88
3.68
3.36
9,8
11
4.24
4.24
4.00
3.88
3.68
3.36
11,8
13
4.40
4.32
4.00
3.88
3.68
3.36
13,7
15
4.52
4.32
4.00
3.88
3.68
3.36
4.5
-20
-19,8
2.80
2.80
2.80
2.80
2.80
2.80
-19
-18,8
3.00
3.00
3.00
3.00
3.00
3.00
-17
-16,7
3.15
3.15
3.15
3.15
3.15
3.15
-15
-14,7
3.25
3.25
3.25
3.25
3.25
3.25
-13
-12,6
3.35
3.35
3.35
3.35
3.35
3.35
-11
-10,5
3.50
3.50
3.50
3.50
3.50
3.50
-10
-9,5
3.65
3.65
3.65
3.65
3.65
3.65
-9,1
-8,5
3.75
3.75
3.75
3.75
3.75
3.75
-7,6
-7
3.80
3.80
3.80
3.80
3.80
3.80
-5,6
-5
3.95
3.95
3.95
3.95
3.95
3.95
-3,7
-3
4.15
4.15
4.15
4.15
4.15
4.15
-0,7
0
4.45
4.45
4.45
4.45
4.45
4.20
2,2
3
4.70
4.70
4.70
4.70
4.60
4.20
4,3
5
4.85
4.85
4.85
4.85
4.60
4.20
6,0
7
5.00
5.00
5.00
4.85
4.60
4.20
7,9
9
5.15
5.15
5.00
4.85
4.60
4.20
9,8
11
5.30
5.30
5.00
4.85
4.60
4.20
11,8
13
5.50
5.40
5.00
4.85
4.60
4.20
13,7
15
5.65
5.40
5.00
4.85
4.60
4.20

Compact four-way cassette indoor units with DC fan motor
18
8. Electrical Characteristics
Model
Indoor Unit
Power Supply
IFM
Hz
Voltage
Min.
Max.
MCA
MFA
kW
FLA
SDV4-22CAF
50/60
220-240
198
254
0.28
15
0.037
0.22
SDV4-28CAF
50/60
220-240
198
254
0.28
15
0.037
0.22
SDV4-36CAF
50/60
220-240
198
254
0.33
15
0.037
0.26
SDV4-45CAF
50/60
220-240
198
254
0.33
15
0.037
0.26
Remark:
MCA: Min. Current Amps. (A)
MFA: Max. Fuse Amps. (A)
kW: Fan Motor Rated Output (kW)
FLA: Full Load Amps. (A)
IFM: Indoor Fan Motor

Compact four-way cassette indoor units with DC fan motor
19
9. Sound Levels
9.1 Test condition
Note:
During actual operation, these values are normally somewhat higher as a result of ambient conditions.
Semi-anechoic chamber conversion value, measured at a point which is 1.4m under the unit.
9.2 Test values
Model
Sound level dB(A)
H
M
L
SDV4-22CAF
34
32
22
SDV4-28CAF
34
32
22
SDV4-36CAF
40
34
27
SDV4-45CAF
40
34
27
9.3 Octave Band Level
SDV4-22CAF, SDV4-28CAF SDV4-36CAF, SDV4-45CAF
Octave band center frequency（Hz）
Sound pressure level dB（0dB=0.0002μbar）
Audibility limits of
continuous white
sound
Octave band center frequency（Hz）
Sound pressure level dB（0dB=0.0002μbar）
Audibility limits of
continuous white
sound
1.4m