Kaysun KAYF-22 DN3.0 User manual

TECHNICAL MANUAL
KAYF-DN3.0
Version 1.1
The specifications, designs, and information in this book are subject to change without notice for
product improvement

TECHNICAL MANUAL
2
Wall Mounted
1. Features.......................................................................................................3
2. Specifications .............................................................................................4
3. Dimensions .................................................................................................6
4. Piping Diagrams .........................................................................................7
5. Wiring Diagrams .........................................................................................8
6. Capacity Tables.........................................................................................11
7. Electrical Characteristics.........................................................................15
8. Sound Levels ............................................................................................16
9. Accessories...............................................................................................18

KAYF- DN3.0
3
1. Features
New Panel
Flexible installation
Multi-refrigerant outlet pipe method: left\right\rear, more flexible for installation.
Flexsible piping connection
Refrigerant piping and condensate piping on the same side
High efficiency DC fan motor
The power consumption of DC driven VRF indoor units can be reduced up to 30% in comparison to
correspondingAC type.
Quiet operation
Adoption of the 2000 stages element positioning mechanical expansion valve, ensures precise flow control, as
well as lower modulation noise when EXV operating.
More smooth airflow with less turbulence. Owing to the multiple-blade fan and the air guide design, the airflow
is getting smoother and more comfortable.

TECHNICAL MANUAL
4
2. Specifications
Model
KAYF-22 DN3.0
KAYF-28 DN3.0
KAYF-36 DN3.0
KAYF-45 DN3.0
Power supply
V- Ph-Hz
220-240V~ 50/60Hz
Cooling
Capacity
kW
2.2
2.8
3.6
4.5
Input
W
8
9
19
19
Rated current
A
0.27
0.31
0.43
0.44
Heating
Capacity
kW
2.4
3.2
4
5
Input
W
8
9
19
19
Rated current
A
0.27
0.31
0.43
0.44
Indoor fan motor
Model
WZDK20-38G
WZDK20-38G
ZKSP-58-8-1
ZKSP-58-8-1
Type
DC motor
Input
W
7
8
18
18
Indoor coil
Number of rows
1
2
1
2
Tube pitch× row
pitch
mm
21×13.37
Fin spacing
mm
1.3
Fin type
Hydrophilic aluminum
Piping diameter
mm
Ф7
Length× height
mm
585×315
585×315
701×315
701×315
Number of circuits
2
3
3
5
Indoor air flow (H/M/L)
m3/h
422/393/356
417/370/316
656/573/488
594/507/424
Indoor noise level (H/M/L)
dB(A)
31/30/29
31/30/29
33/32/30
35/33/31
Indoor unit
Dimension (W×H×D)
mm
835×280×203
835×280×203
990×315×223
990×315×223
Packing (W×H×D)
mm
935×385×320
935×385×320
1085×420×335
1085×420×335
Net/Gross weight
kg
8.4/12.1
9.5/13.1
11.4/15.5
12.8/16.9
Refrigerant type
R410A
Throttle
Type
EXV
Design pressure (H/L)
MPa
4.4/2.6
Liquid pipe/ Gas pipe
mm
Ф6.35/ Ф12.7
Connecting wiring
Power wiring
mm2
3×2.5
Signal wiring
mm2
3×1.5
Drainage water pipe diameter
mm
Ф16.5
Notes:
Nominal cooling capacities are based on the following conditions: return air temperature: 27°CDB, 19°CWB; outdoor temperature: 35°CDB,
equivalent ref. piping: 8m (horizontal)
Nominal heating capacities are based on the following conditions: return air temperature: 20°CDB, outdoor temperature: 7°CDB, 6°CWB;
equivalent ref. piping: 8m (horizontal)

KAYF- DN3.0
5
Specifications
Model
KAYF-56 DN3.0
KAYF-80 DN3.0
Power supply
V-
Ph-Hz
220-240V~ 50/60Hz
Cooling
Capacity
kW
5.6
8
Input
W
27
53
Rated current
A
0.58
0.6
Heating
Capacity
kW
6.3
9
Input
W
27
53
Rated current
A
0.58
0.6
Indoor fan motor
Model
ZKSP-58-8-1
ZKSP-60-8-3
Type
DC motor
Input
W
25
40
Indoor coil
Number of rows
2
2
Tube pitch× row
pitch
mm
21×13.37
Fin spacing
mm
1.3
Fin type
Hydrophilic aluminum
Piping diameter
mm
Ф7
Length× height
mm
701×315
825×399
Number of circuits
5
Indoor air flow (H/M/L)
m3/h
747/648/547
1195/1005/809
Indoor noise level (H/M/L)
dB(A)
38/36/34
44/39/36
Indoor unit
Dimension (W×H×D)
mm
990×315×223
1194×343×262
Packing (W×H×D)
mm
1085×420×335
1290×375×460
Net/Gross weight
kg
12.8/16.9
17/22.4
Refrigerant type
R410A
Throttle
Type
EXV
Design pressure (H/L)
MPa
4.4/2.6
Liquid pipe/ Gas pipe
mm
Ф9.53/ Ф15.9
Connecting
wiring
Power wiring
mm2
3×2.5
Signal wiring
mm2
3×1.5
Drainage water pipe diameter
mm
Ф16.5
Notes:
Nominal cooling capacities are based on the following conditions: return air temperature: 27°CDB, 19°CWB; outdoor temperature: 35°CDB,
equivalent ref. piping: 8m (horizontal)
Nominal heating capacities are based on the following conditions: return air temperature: 20°CDB, outdoor temperature: 7°CDB, 6°CWB;
equivalent ref. piping: 8m (horizontal)

TECHNICAL MANUAL
6
3. Dimensions
KAYF-22 DN3.0, KAYF-28 DN3.0
KAYF-36 DN3.0, KAYF-45 DN3.0, KAYF-56 DN3.0
KAYF-80 DN3.0

KAYF- DN3.0
7
4. Piping Diagrams
flare nut
flare nut
T2B
gas side
motor
heat exchanger
fan
EXV
liquid side
T2
T1
T1: Indoor ambient temperature sensor;
T2: Temperature sensor in the middle of evaporator;
T2B: Evaporator outlet temperature sensor.
Refrigerant pipe connection port diameters
Model
Gas pipe
Liquid pipe
2.2-4.5kW
Φ12.7
Φ6.35
5.6-8.0kW
Φ15.9
Φ9.53

TECHNICAL MANUAL
8
5. Wiring Diagrams
KAYF-22 DN3.0, KAYF-28 DN3.0
KAYF-36 DN3.0, KAYF-45 DN3.0, KAYF-56 DN3.0

KAYF- DN3.0
9
Wiring diagrams
KAYF-80 DN3.0
Code definition
Code
Name
Code
Name
FM
Fan motor
T2B
Evaporator outlet temperature sensor
GM
Swing motor
CS
Water level switch
PMV
EXV
XP1-5/XS1-5
Connectors
T1
Indoor ambient temperature sensor
XT1/XT2
Terminals
T2
Temperature sensor in the middle of evaporator
MR
Magnetic ring
Dial switch setting
Means 0
Means 1
SW1 setting
0 means auto addressing mode (Default)
1 means factory test mod
SW2 setting
00 means when temperature is 15°C or below, fan will stop to prevent cold air(Default)
01 means when temperature is 20°C or below, fan will stop to prevent cold air
10 means when temperature is 24°C or below, fan will stop to prevent cold air
11 means when temperature is 26°C or below, fan will stop to prevent cold air
ON
ON
1234
1234

TECHNICAL MANUAL
10
Dial switch setting
SW2 setting
00 means in heating mode, the fan which stop for reaching the set temp., will periodically stop for 4 minutes and run
for 1 minute (Default)
01 means in heating mode, the fan which stop for reaching the set temp., will periodically stop for 8 minutes and run
for 1 minute
10 means in heating mode, the fan which stop for reaching the set temp., will periodically stop for 12 minutes and
run for 1 minute
11 means in heating mode, the fan which stop for reaching the set temp., will periodically stop for 16 minutes and
run for 1 minute
SW5 setting
00 means temperature compensation value is 6oC in heating mode (default)
01 means temperature compensation value is 2oC in heating mode
10 means temperature compensation value is 4oC in heating mode
11 means temperature compensation value is 8oC in heating mode
SW6 setting
0 means temperature compensation value is 0oC in cooling mode (default)
1 means temperature compensation value is 2oC in cooling mode
J1 definition
With auto restart function
Non-auto restart function
1234
12
SW5
ON
SW6
ON