ENERGY-EFFICIENT SOLUTIONS FOR YOUR HOME AND BUSINESS
AHU
DX KIT
A - Line
DX Kit
The AHU DX Kit is a comprehensive solution that enables
the direct integration of VRF systems with air handling
units. It combines advanced automation, direct evapora-
tion technology, and ease of implementation, ensuring high
energy efficiency and maximum design flexibility.
The AHU DX Kit is designed to efficiently integrate VRF units with air handling units and heat exchangers from
various manufacturers. This solution enables the use of direct expansion (DX) technology in ventilation systems,
resulting in high system efficiency, precise control of air parameters, and optimized operating costs.
The module is a complete, integration-ready solution equipped with full automation, an electronic expansion valve
(EXV), temperature sensors, wiring, and a controller. This significantly simplifies the system design and commis-
sioning process, and integration with existing HVAC systems is quick and efficient.
Built-in sensors enable precise control of the heat exchanger’s operation, regardless of whether the air handling
unit has its own automation system or requires external control. The AHU DX Kit is compatible with a 0–10 V
control signal, offering extensive configuration options and the ability to adapt to the requirements of a specific
project.
This solution is ideal for modern office, retail, hotel, public, and industrial buildings, where energy efficiency, user
comfort, and the reliability of the HVAC system are of paramount importance. Thanks to its modular design, the
AHU DX Kit provides designers and contractors with great flexibility in creating efficient and scalable air condi-
tioning and ventilation systems.
A - Line
DX Kit
Diagram DX Kit for VRF system outdoor units
GAS PIPE
COMMUNICATION LINE
SENSOR GAS
TEMPERATURES
SENSOR
TEMPERATURES
OF LIQUIDS
SENSOR ROOM
TEMPERATURES
CONTROLLER
HEADQUARTERS
LIQUID PIPE
Diagram DX Kit for VRF system outdoor units
DX KIT
DX-KIT
The unit can be controlled using the included wired controller, external controllers
via a 0–10 V signal, or via the MODBUS protocol. The kit includes a set of sensors
to be mounted on the refrigerant heat exchanger. It requires no additional acces-
sories or special configuration.
KWAARVK - 00B/01B/02B/03B
AHU kits allow VRF outdoor units with capacities ranging from
12 to 101 kW to be connected to refrigerant heat exchangers
in air handling units. This makes it possible to cool and heat
ventilation air using an efficient VRF system, while maintaining
high energy efficiency and flexibility in capacity selection.
A - Line
DX Kit
Technical specifications
A - Line
DX Kit
Model
AHU
capacity
Dimensions
of the unit
Weight
Volume of the DX coil
(min-max)
Reference
Airflow
Power Supply
kW
mm
kg
dm³
m³/h
V~ / Hz / Ph
KWAARVK-00B
9,0 ~ 11,2
573 x 447 x 180
11.2
1,66 ~ 2,06
1400
220~240, 50, 1
11,2 ~ 14,0
573 x 447 x 180
11.2
2,06 ~ 2,58
2000
220~240, 50, 1
14,0 ~ 16,0
573 x 447 x 180
11.2
2,58 ~ 3,22
2400
220~240, 50, 1
16,0 ~ 20,0
573 x 447 x 180
11.2
3,32 ~ 3,69
2700
220~240, 50, 1
KWAARVK-01B
20,0 ~ 25,0
573 x 447 x 180
11.3
3,70 ~ 4,60
3000
220~240, 50, 1
25,0 ~ 30,0
573 x 447 x 180
11.3
4,60 ~ 5,50
3800
220~240, 50, 1
30,0 ~ 36,0
573 x 447 x 180
11.3
5,50 ~ 6,60
4500
220~240, 50, 1
KWAARVK-02B
36,0 ~ 40,0
573 x 447 x 180
11.6
6,60 ~ 7,40
5500
220~240, 50, 1
40,0 ~ 45,0
573 x 447 x 180
11.6
7,40 ~ 8,30
6000
220~240, 50, 1
45,0 ~ 50,0
573 x 447 x 180
11.6
8,30 ~ 9,20
7000
220~240, 50, 1
50,0 ~ 56,0
573 x 447 x 180
11.6
9,20 ~ 10,30
8000
220~240, 50, 1
KWAARVK-03B
56,0 ~ 65,0
573 x 447 x 180
11.8
9,63 ~ 11,56
8200
220~240, 50, 1
65,0 ~ 70,0
573 x 447 x 180
11.8
11,03 ~ 12,54
9400
220~240, 50, 1
70,0 ~ 76,0
573 x 447 x 180
11.8
11,90 ~ 13,30
10200
220~240, 50, 1
76,0 ~ 80,0
573 x 447 x 180
11.8
12,62 ~ 14,01
10800
220~240, 50, 1
80,0 ~ 90,0
573 x 447 x 180
11.8
13,40 ~ 15,26
11800
220~240, 50, 1
90,0 ~ 100,0
573 x 447 x 180
11.8
15,26 ~ 17,80
13400
220~240, 50, 1
100,0 ~ 112,0
573 x 447 x 180
11.8
17,51 ~ 19,61
15000
220~240, 50, 1
Applies to MINI VRF and VRF systems (capacity ≥ 12 kW).
Data may vary depending on test conditions; Kaisai reserves the right to interpret the data.
All specifications are subject to change by the manufacturer without prior notice.
Mini VRF R32
Thanks to their design, these units can be installed in spaces with limited area -
such as roofs, balconies, or utility rooms -without compromising on performance.
The advanced technologies used in the outdoor units ensure stable, energy-effi-
cient operation and reliability under various operating conditions, serving as the
solid core of the entire air conditioning system.
KVOA 120/140/160 RAA3
The mini VRF system is based on compact outdoor units that
combine high performance with compact dimensions. These
small units are designed to make the most of the available
space, making them an ideal solution for both new construction
projects and retrofit projects.
Mini VRF R32
The mini VRF system is based on compact outdoor units
that combine high performance with a compact design.
These small units are designed to make the most of the
available space, making them an ideal solution for both new
projects and retrofitted facilities.
Thanks to their design, these units can be installed in spac-
es with limited area—such as roofs, balconies, or utility
rooms—without compromising on performance. The ad-
vanced technologies used in the outdoor units ensure sta-
ble, energy-efficient operation and reliability under various
operating conditions, serving as the solid core of the entire
air conditioning system.
Mini VRF R32
Wide supply voltage range
The device is designed to operate stably even under condi-
tions of voltage fluctuations. As a result, it ensures reliable
operation in various regions and under different power grid
conditions.
Automatic restart
In the event of a power outage, the device saves its most re-
cent operating settings. When power is restored, it automat-
ically reverts to its previous settings, ensuring uninterrupted
operation without user intervention.
A - Line
Mini VRF R32
Technical specifications
Model
KVOA120RAA3
KVOA140RAA3
KVOA160RAA3
Capacity
Cooling
kW
12,1
14,0
15,5
Heating
kW
14,0
16,0
18,0
Electrical Specifications
Power Supply
V~ / Hz / Ph
380~415 / 50~60 / 3
380~415 / 50~60 / 3
380~415 / 50~60 / 3
Power consumption for cooling
kW
3,25
3,80
4,80
EER
W/W
3,72
3,68
3,23
SEER
W/W
7,03
7,10
6,99
Power consumption for heating
kW
3,45
3,85
4,60
COP
W/W
4,06
4,16
3,91
SCOP
W/W
4,09
5,06
4,60
Characteristics
Airflow
m³/h
4840
4840
5100
Sound pressure
dB(A)
55
56
57
Dimensions (W x D x H)
Net
mm
990×420×860
990×420×860
990×420×860
Gross
mm
1100×545×980
1100×545×980
1100×545×980
Weight
Net
kg
79
79
79
Gross
kg
89
89
89
Diameter of connections
Liquid
mm (inches)
9,52 (3/8)
9,52 (3/8)
9,52 (3/8)
Gas
mm (inches)
15,88 (5/8)
15,88 (5/8)
15,88 (5/8)
Max. installation length
100
100
100
Ambient temperature (cooling/heating)
℃
-15~49 / -20~24
-15~49 / -20~24
-15~49 / -20~24
Refrigerant
Type
R32
R32
R32
Refrigerant charge
kg
3,40
3,40
3,40
A - Line
Mini VRF R32
Dimensions of the R32 Mini VRF
990
420
860
675
475
Mini VRF R410A
The advanced design of the outdoor units enables efficient operation under a
variety of operating conditions, ensuring high performance and stable operation
throughout the year. The use of modern technologies and energy-efficient com-
ponents results in low operating costs, reliability, and user comfort. The outdoor
units serve as the efficient and durable heart of the entire air conditioning system,
ensuring effective cooling of multiple rooms simultaneously.
KVOB 180/224/252/280/335 LAA3
The mini VRF system is based on high-performance outdoor
units that combine high capacity with flexibility of use. The units
are designed for use in commercial and residential buildings,
offering a wide range of configuration options and the ability to
adapt to the specific requirements of each project.
Mini VRF R410A
A - Line
Mini VRF R410A
A - Line
DC Inverter Compressor
A modern compressor with DC Inverter technology elimi-
nates electromagnetic losses and reduces the noise typical
of AC systems. It ensures high energy efficiency, smooth
operation, and quiet, stable performance.
PCB cooling system using refrigerant
Effective cooling of electronic components using a refriger-
ant ensures stable and safe operation of the control system.
This solution increases the reliability and service life of the
entire system.
Model
KVOB280LAA3
KVOB335LAA3
Capacity
Cooling
kW
28,5
33,5
Heating
kW
31,5
37,5
Electrical Specifications
Power Supply
V~ / Hz / Ph
380~415 / 50~60 / 3
380~415 / 50~60 / 3
Power consumption for cooling
kW
7,5
7,95
EER
W/W
3,80
4,21
SEER
W/W
Power consumption for heating
kW
6,7
7,85
COP
W/W
4,70
4,78
SCOP
W/W
Characteristics
Airflow
m³/h
11000
15300
Sound pressure
dB(A)
43 - 57
43 - 58
Dimensions (W x D x H)
Net
mm
1120 × 400 × 1540
1120 × 400 × 1540
Gross
mm
1270 × 560 × 1710
1270 × 560 × 1710
Weight
Net
kg
145
152
Gross
kg
155
162
Diameter of connections
Liquid
mm (inches)
12,70 (1/2)
12,70 (1/2)
Gas
mm (inches)
22,22 (7/8)
22,22 (7/8)
Max. installation length
560
560
Ambient temperature (cooling/heating)
℃
-15~49 / -20~24
-15~49 / -20~24
Refrigerant
Type
R410A
R410A
Refrigerant charge
kg
7,00
8,50
Model
KVOB180LAA3
KVOB224LAA3
KVOB252LAA3
Capacity
Cooling
kW
18,0
22,4
25,2
Heating
kW
20,0
25,0
27,0
Electrical Specifications
Power Supply
V~ / Hz / Ph
380~415 / 50~60 / 3
380~415 / 50~60 / 3
380~415 / 50~60 / 3
Power consumption for cooling
kW
5,20
5,72
5,75
EER
W/W
3,46
3,92
4,38
SEER
W/W
6,10
Power consumption for heating
kW
4,00
5,65
5,65
COP
W/W
5,00
4,42
4,78
SCOP
W/W
4,00
Characteristics
Airflow
m³/h
6700
11000
11000
Sound pressure
dB(A)
58
43-57
43-57
Dimensions (W x D x H)
Net
mm
940×340×1320
1120×400×1540
1120×400×1540
Gross
mm
1080×430×1440
1270×560×1710
1270×560×1710
Weight
Net
kg
89
145
145
Gross
kg
99
155
155
Diameter of connections
Liquid
mm (inches)
9,52 (3/8)
12,70 (1/2)
12,70 (1/2)
Gas
mm (inches)
19,05 (3/4)
22,22 (7/8)
22,22 (7/8)
Max. installation length
150
560
560
Ambient temperature (cooling/heating)
℃
-15~49 / -20~24
-15~49 / -20~24
-15~49 / -20~24
Refrigerant
Type
R410A
R410A
R410A
Refrigerant charge
kg
5,00
7,00
7,00
Technical specifications
A - Line
Mini VRF R410A
A - Line
Mini VRF R410A
KVOB180LAA3
KVOB 224/252/280/335 LAA3
625
1320
940
340
400
Dimensions of the R410A Mini VRF
1540
635
400
495
530
1120
VRF R410A
The advanced design of the outdoor units and their wide operating temperature
range ensure high performance and stable operation throughout the year. The use
of modern technologies and energy-efficient components results in low operating
costs, reliability, and user comfort. The outdoor units serve as the efficient and
durable heart of the entire air conditioning system.
KVOC 400/450/500/560/610/680/730/
785/850/900/950/101 LAA3
The R410A VRF system is designed for medium- and large-sized
facilities. High-efficiency outdoor units ensure efficient and flex-
ible system operation. The modern design and wide range of
models guarantee high energy efficiency, design flexibility, and
easy installation and maintenance.
VRF R410A
A - Line
High-performance DC motor
The brushless DC motor automatically adjusts the fan speed
to the current load and pressure in the system. It provides
greater airflow, higher static pressure, and energy-efficient,
quiet operation.
Smart Defrosting
The intelligent defrosting system monitors temperature
and pressure, initiating the process only when necessary.
This ensures stable operation of the unit, shorter defrost-
ing times, and effective protection of the heat exchanger
against freezing.
VRF R410A
A - Line
Model
KVOC400LAA3
KVOC450LAA3
KVOC500LAA3
Capacity
Cooling
kW
40,0
45,0
50,4
Heating
kW
40,0
45,0
50,4
Electrical Specifications
Power Supply
V~ / Hz / Ph
380~415,50 / 60,3
380~415,50 / 60,3
380~415,50 / 60,3
Power consumption for cooling
kW
9,90
11,82
12,63
EER
W/W
4,04
3,81
3,99
Power consumption for heating
kW
8,25
9,78
11,69
COP
W/W
4,85
4,60
4,31
Characteristics
Airflow
m³/h
14000
14000
16000
Sound pressure
dB(A)
43-61
43-61
43-63
Dimensions (W x D x H)
Net
mm
1340×765×1635
1340×765×1635
1340×765×1635
Gross
mm
1395×815×1865
1395×815×1865
1395×815×1865
Weight
Net
kg
257
257
320
Gross
kg
272
272
335
Diameter of connections
Liquid
mm (inches)
15,88 (5/8)
15,88 (5/8)
15,88 (5/8)
Gas
mm (inches)
28,60 (11/8)
28,60 (11/8)
28,60 (11/8)
Max. installation length
1000
1000
1000
Ambient temperature (cooling/heating)
℃
-15~49 / -20~24
-15~49 / -20~24
-15~49 / -20~24
Refrigerant
Type
R410A
R410A
R410A
Refrigerant charge
kg
5,60
5,60
6,40
Model
KVOC560LAA3
KVOC610LAA3
KVOC680LAA3
Capacity
Cooling
kW
56,0
61,5
68,0
Heating
kW
56,0
61,5
75,0
Electrical Specifications
Power Supply
V~ / Hz / Ph,
380~415,50 / 60,3
380~415,50 / 60,3
380~415,50 / 60,3
Power consumption for cooling
kW
15,34
18,90
18,52
EER
W/W
3,65
3,25
3,67
Power consumption for heating
kW
13,83
15,44
18,90
COP
W/W
4,05
3,98
3,97
Characteristics
Airflow
m³/h
16000
16000
29000
Sound pressure
dB(A)
43-63
43-63
43-62
Dimensions (W x D x H)
Net
mm
1340×765×1635
1340×765×1635
1850×825×1760
Gross
mm
1395×815×1865
1395×815×1865
1925×930×1930
Weight
Net
kg
320
320
378
Gross
kg
335
335
401
Diameter of connections
Liquid
mm (inches)
15,88 (5/8)
15,88 (5/8)
19,05 (3/4)
Gas
mm (inches)
28,60 (11/8)
28,60 (11/8)
35,00 (11/4)
Max. installation length
1000
1000
1000
Ambient temperature (cooling/heating)
℃
-15~49 / -20~24
-15~49 / -20~24
-15~49 / -20~24
Refrigerant
Type
R410A
R410A
R410A
Refrigerant charge
kg
6,40
6,40
9,50
Technical specifications
A - Line
VRF R410A
Model
KVOC730LAA3
KVOC785LAA3
KVOC850LAA3
Capacity
Cooling
kW
73,0
78,5
85,0
Heating
kW
81,5
87,5
95,0
Electrical Specifications
Power Supply
V~ / Hz / Ph,
380~415,50 / 60,3
380~415,50 / 60,3
380~415,50 / 60,3
Power consumption for cooling
kW
20,70
23,55
26,48
EER
W/W
3,53
3,33
3,21
Power consumption for heating
kW
20,69
23,90
27,05
COP
W/W
3,94
3,66
3,51
Characteristics
Airflow
m³/h
29000
29000
30000
Sound pressure
dB(A)
43-62
43-63
43-64
Dimensions (W x D x H)
Net
mm
1850×825×1760
1850×825×1760
1850×825×1760
Gross
mm
1925×930×1930
1925×930×1930
1925×930×1930
Weight
Net
kg
378
378
412
Gross
kg
401
401
435
Diameter of connections
Liquid
mm (inches)
19,05 (3/4)
22,20 (7/8)
22,20 (7/8)
Gas
mm (inches)
35,00 (11/4)
35,00 (11/4)
35,00 (11/4)
Max. installation length
1000
1000
1000
Ambient temperature (cooling/heating)
℃
-15~49 / -20~24
-15~49 / -20~24
-15~49 / -20~24
Refrigerant
Type
R410A
R410A
R410A
Refrigerant charge
kg
9,50
9,50
10,00
Model
KVOC900LAA3
KVOC950LAA3
KVOC101LAA3
Capacity
Cooling
kW
90,0
95,2
101,0
Heating
kW
100,0
106,0
112,0
Electrical Specifications
Power Supply
V~ / Hz / Ph,
380~415,50 / 60,3
380~415,50 / 60,3
380~415,50 / 60,3
Power consumption for cooling
kW
29,42
31,64
33,92
EER
W/W
3,06
3,01
2,98
Power consumption for heating
kW
29,32
31,65
33,84
COP
W/W
3,41
3,35
3,31
Characteristics
Airflow
m³/h
30000
30000
30000
Sound pressure
dB(A)
43-64
43-66
43-66
Dimensions (W x D x H)
Net
mm
1850×825×1760
1850×825×1760
1850×825×1760
Gross
mm
1925×930×1930
1925×930×1930
1925×930×1930
Weight
Net
kg
412
419
419
Gross
kg
435
442
442
Diameter of connections
Liquid
mm (inches)
22,20 (7/8)
22,20 (7/8)
22,20 (7/8)
Gas
mm (inches)
35,00 (11/4)
35,00 (11/4)
35,00 (11/4)
Max. installation length
1000
1000
1000
Ambient temperature (cooling/heating)
℃
-15~49 / -20~24
-15~49 / -20~24
-15~49 / -20~24
Refrigerant
Type
R410A
R410A
R410A
Refrigerant charge
kg
10,00
10,00
10,00
Technical specifications
A - Line
VRF R410A
KVOC 400/450/500/560/610 LAA3
KVOC 680/730/785/850/900/950/1010 LAA3
1340
1340
1085
1635
743
743
1850
1620
1760
1760
825
825
Dimensions of the R410A VRF System
A - Line
VRF R410A
A - Line
VRF R410A
Contact Information
KATOWICE BRANCH
108 Chorzowska Street, Building B
40-101 Katowice
+48 32 209 49 26
WARSAW BRANCH
101A Ostrobramska Street
04-041 Warsaw
+48 22 517 36 00
GDAŃSK BRANCH
48 Budowlanych Street
80-298 Gdańsk
+48 58 768 03 33
Klima-Therm Group Academy:
HEADQUARTERS
101A Ostrobramska Street
04-041 Warsaw
+48 22 517 36 00 | +48 22 879 99 07
For Consumers:
Are you interested in purchasing our products?
Check the current list of distributors at: www.kaisai.com
For Distributors and Installers:
Would you like to become one of our distributors? Email or call us.
SALES DEPARTMENT
+48 22 465 65 85
export@kaisai.com
Contact Information
This document is intended to provide information and present Kaisai brand devices. | The technologically advanced production process
requires constant monitoring and improvement, therefore the information contained in this publication is subject to change. | The technical data
contained in the catalog is subject to change. Current information is always available at: www.kaisai.com
All technical data complies with the guidelines of standards EN14511; EN14825; EN50564; EN12102; (EU) No 811:2013; (EU) No 813:2013; OJ 2014/C 207/02:2014.
The seasonal heating efficiency SCOP has been determined for moderate climate conditions.
The sound power level in heating mode is specified in accordance with EN 12102 under conditions compliant with EN 14825.
20