Dekon , onf of the professional supplier and exporter for VRF system in China. Have exported to more than 30 different countries our products. Dekon vrf system brief introduction here just brief intro of our products DRV, any more info needed, pls visit us at dekon-china.com or chinavrf.com

1. DC Inverter VRF

2. Variable Refrigerant Flow
VRF is popular to use in half of medium-sized
commercial buildings (<70,000 ft2) and ~ 1/3 of larger
buildings，such as office building, hotel, high grade
d e p a r t m e n t ,
villa etc.
Consist of ODUs, IDUs, branch pipes, controller etc. One
ODU can drive multi IDUs, with different capacity and
appearance.
What is VRF?

3. DEKON inverter VRF unit production line is a
modern automatic production line
constructed according to Japan technical
requirements and configuration. The
production line adopts a power line body
and implements intermittent control
according to the process cycle requirement.
All the products are confirmed through 8
detection procedures, and the quality is
controlled by 21 posts. The production line
takes the lead in the same industry in China.
DEKON production process, procedure and testing are controlled according to the Japanese assembly line
level to ensure "zero defect" of units after leaving the production line.
Japanese R&D and Management –
Japanese Standard Production Line
DEKON R&D Institute in Japan

4. DEKON VRF Product Lineup
01
• DC inverter DRV-X
• Low ambient DRV-A
• Low ambient -15 ℃ no decay DRV-E
• DC inverter Individual DRV-S
• Residential DRV-E

5. DRV system
DC inverter
DRV-X
DRV-X Series
25-184.5kW
DC inverter
Individual
DRV-S
Low ambient
-15 ℃ no decay
DRV-C
Low ambient
DRV-A
Residential
DRV-E
DRV-A Series
25-150kW
DRV-C Series
25-100.5kW
DRV-S Series
25-90kW
DRV-E Series
8-18kW
DRV Product Lineup

6. DRV-A
Low ambient
Capacity 8-18 HP 20-36 HP 38-54 HP
Model DRV-080AA-DRV-180AA DRV-200AA-DRV360AA DRV-380AA-DRV-540AA
DRV-C
-15°C
without decay
Capacity 8-12 HP 16-24 HP 26-36 HP
Model DRV-080AC-DRV-120AC DRV-160AC-DRV-240AC DRV-260AC-DRV-360AC
DRV-S
DC inverter
Individual
Capacity 8-12 HP 14-16 HP 18-26 HP 28-32 HP
Model DRV-080AS-DRV-120AS DRV-140AS-DRV-260AS DRV-280AS-DRV-320AS
DRV-X
modular
all inverter
Capacity 8-22 HP 24-44 HP 46-66 HP
Model DRV-080AX-DRV-220AX DRV-240AX-DRV-440AX DRV-460AX-DRV-660AX
DRV-E
residential
Capacity 8 kW 10 kW 11.2/12.5 kW 14 kW 16 kW 18 kW
Model DRV-080AHT DRV-100AHT DRV-112/125AHT DRV-140AHT DRV-160AHT DRV-180AHT
Product Lineup - ODU

7. Features and Benefits
02
• DEKON VRF Proprietary features
• Other features

8. 0
20
40
60
80
100
120
-25 -20 -15 -10 -5 0 5 10
高暖房
標準
10HP taken as an example
Why isn't DEKON DRV-Cleaning VRF system configured with auxiliary electric heating?
1. Based on the strong heating performance
2. Due to the low efficiency and high power consumption, auxiliary electric heating increases the electricity
cost of user
3. Electric heating more easily leads to the potential risk of fire and had impact on the user's life and property,
Japan had canceled all the electric heating products
Japanese R&D－Strong Heating,
Not Requiring Auxiliary Electric Heating
How to implement 15℃ heating without decay?
Enhanced
vapor injection
technology of
compressor
High
frequency
technology of
compressor
Application
of large area
heat
exchanger
High
greenhouse
Standard

9. Energy efficiency ratio
Ordinary unit +
electric heating
Enhanced vapor
injection unit
Energy efficiency comparison of the enhanced vapor
injection unit and the ordinary unit (electric heating configured for IDU)
16 HP taken as an example (IDUs: four sets of 11.2 KW air duct units)
Heating energy efficiency
comparison of units at -15°C
↑+15.1%
For the 16 HP unit, based on the condition that the unit starts electric heating for 4 h on average per day,
4320 KWh electricity can be saved in total in three months.
For the commercial complex of 100000 m2, based on the 200 W/m2 load, the unit can save 1928570 KWh
electricity after operation for three months.
-15°C heating
Electricity
comparison
One day
(8 h, KWh)
One month
(240 h, KWh)
One quarter
(720 h, KWh)
Enhanced vapor
injection unit
124 3720 11160
Ordinary unit +
electric heating
172 5160 15480
Difference 48 1440 4320
Japanese R&D－Strong Heating, Not Requiring
Auxiliary Electric Heating

10. Why is the non-stop defrosting technology adopted?
Non-stop defrosting means that the IDU can continue heating during defrosting
under the heating condition.
Advantages
Comfortable experience
Small fluctuations in indoor temperature
The unit restores heating rapidly after defrosting ends
Japanese R&D－Strong Heating, Not Stopping
the Unit during Defrosting
Good defrosting effect
The unit defrosts the heat exchanger surface quickly (3-5
minutes).

11. Japanese R&D - All Inverter Design, Energy
Conservation and High Efficiency
Advantage 1: Advanced technology
DEKON took the lead to launch the full inverter product based on the 24-32 HP independent inverter unit, which boasts the best cost
and performance.
Advantage 2: High reliability
Wear: Fixed frequency + variable frequency: Rotation cannot be implemented, and wear of the inverter compressor greatly
surpasses that of fixed speed compressor.
Variable frequency + variable frequency: The compressors can implement internal rotation, realizing even wear of
compressors and increasing the compressor service life.
Oil return: Fixed frequency + variable frequency: The fixed frequency compressor and inverter compressor are inconsistent in the
operation frequency and pressure difference, unfavorable to oil return of the system and oil balancing of compressors.
Variable frequency + variable frequency: The all inverter compressors are inconsistent in the operation frequency and
pressure difference, favorable to oil return of the system and oil balancing of compressors.

12. compressor
design
Advantages
Easy installation
One section of copper pipe does not need to be installed. Three welding
spots and one tee need to be reduced for three modules, so the
installation cost is also reduced. Meanwhile, one section of pipeline does
not need to be vacuumized.
Increased system reliability
Reduce leak points that may occur
The system does not require adding valve parts for balancing oil,
simplifying the system and increasing the reliability.
Standard configuration of Japanese products, applied to domestic
products for the first time
Advantages
Less compressors, simplified system control, increased
reliability, and reduced fault rate
Multiple compressor connected in parallel, complicated oil
return system, and added valve parts
Japanese R&D - No Oil Balancing Pipe
Large Capacity Compressor
Liquid pipe
Air pipe

13. Why is supercooling design adopted?
Due to the high supercooling degree, the refrigerant flowing out of the ODU can greatly reduce the flash loss
caused when refrigerant flows in the pipeline, ensure balanced distribution of refrigerant between IDUs,
and implement good cooling effect of the unit.
● The two-stage supercooling circulation improves the cooling capacity.
● The pressure loss is reduced when refrigerant flows in the pipeline.
● The supercooling degree is increased, conductive to stable operation of the electronic expansion valve.
● The supercooling degree is increased, ensuring the total length increase of piping.
DEKON supercooling loop configured for all
the systems
Japanese R&D - Supercooling Loop Design
Note: The supercooling degree
directly affects the length of
refrigerant connecting pipe.
The higher the supercooling
degree, the longer the
connected pipe.
Brand DEKON D
brand
H brand G brand M brand
Number of
supercoolin
g levels
2 levels 2 levels 2 levels 2 levels 2 levels
Total
supercoolin
g degree
25°C 18.7 28 20°C 19.5°C
Brand DEKON D brand H brand G brand M brand
Maximum
single pipe
length
200 m 165 200 165 m 190 m
Maximum
equivalent pipe
length
240 m 190 240 190 m 220 m
Maximum total
pipe length
1100 1000 1100 1000 1000
Maximum IDU
and ODU drop
90/110 90/110 90/110 50/90 90/110
Maximum IDU
drop
30 30 40 30 30
Maximum
length after the
first branch
pipe
90 90 90 40 90
Low temperature
gaseous refrigerant
High temperature
liquid refrigerant
Low temperature
liquid refrigerant
Too cold liquid
refrigerant
Re-super-cooler
Supercooling section of
heat exchanger
Level 2
supercooling
Level 1
supercooling

14. Why is DC motor adopted?
1. Energy conservation and high efficiency: The efficiency can be increased by about 20%, e.g., when 1 KWh is needed for
the
AC motor, only 0.8 KWh is needed for the DC motor.
2. Stable system operation: The DC motor can implement stepless speed regulation, making the system operate stably all the
time and greatly boosting the efficiency.
3. Lower operating noise
CAE
analysis
Why is large diameter fan blade adopted?
1. The large diameter fan blade can achieve the same air flow at a lower speed and further reduce the noise.
2. The operation is more stable in
case of high speed.
Speed
(RPM)
Stepless speed
regulation
System pressure
Efficiency (%)
DC motor
AC motor
Speed (RPM)
Japanese R&D – DC fan motor and large fan blade

15. Stepless capacity regulation
The DC inverter control technology can implement connection control
on the compressor speed and system output and intelligent regulation
of the system output according to the actual operation capacity
requirement, ensuring linear capacity output from low speed to
regulated speed, realizing stepless regulation of compressor and
meeting the higher comfort requirement.
Electronic expansion valve control
technology
Electronic expansion valves are set for all the ODUs and IDUs to
ensure effective refrigerant distribution among ODUs and IDUs,
achieve the same effect and comfort in different rooms.
Frequency (Hz)
Stepless regulation
Step regulation
Capability requirement
Electronic
expansion valve
Omnidirectional quiet technology = Compressor silencing technology + FAN technology
(fluid analysis) + Unique quiet technology
Outdoor temperature peak Night mode
Night mode started
Wide operating range Ambient temperature of cooling: -5~50°C DB
Ambient temperature of heating: -20~24°C DB
Comfortable and Energy Saving
Other features
Cooling/
Heating type Cooling
Heating
-20℃WB

16. A B C
A B C
A B C
Rotation operation control
The long service life (uniform wear control) is achieved by
uniformizing the unit operation time.
Reliability is enhanced through the optimal oil balance (oil balance control).
The compressor cannot be damaged easily, and the fault rate is low.
Backup operation control (emergency operation)
When one unit fails, the other units can continue normal operation, ensuring high comfort for the
customer and not affecting normal use.
Stable and Reliable

17. ODU
ODU
High drop of long connection pipes
Maximum connection pipe length: 240 m; maximum total
connection pipe length: 1100 m
IDU and ODU drop: 110 m; IDU drop: 30 m
Product lineup covering 10 types of IDUs; a maximum of 64 IDUs
can be connected
Maximum static pressure of ODU air duct: 80 Pa
The first
branch pipe
Outdoor
branch pipe
A
B
H1 = 0 m
H2≤20m
L1 ≤ 10 m
When ODU is at the upper position: ≤ 110 m
When ODU is at the lower position: ≤ 90 m
L3 ≤ 40 m
L2 ≤ 200 m
(equivalent length less than
240 m)
Symbol meanings:
H0 Drop between outdoor modules
L1 Inter-module spacing
L2 Total length of one-way pipeline
L3 Total one-way length after the first
branch pipe
H2 Inter-IDU drop
Flexible Installation

18. Universal IDUs
03

19. Round flow cassette 2-way Cassette 1-way Cassette Floor Ceiling
Standard ducted unit Ultra-thin ducted unit High ESP ducted unit Wall-mounted
10 major series and 95 types of specifications
High capacity
ducted unit
Fresh air handling unit
Product Lineup - IDU

20. Cap.
(kW)
Round flow
cassette
1-way
Cassette
2-way Cassette
Ultra-thin
ducted unit
Standard
ducted unit
High ESP
ducted unit
Floor Ceiling Wall-mounted
DCA DCS DCD DLD DLD DHD DCF DWM
2.2 ● ●
2.5 ●
2.8 ● ● ● ● ● ● ●
3.2 ●
3.6 ● ● ● ● ● ● ●
4.0 ● ●
4.5 ● ● ● ● ●
5.0 ●
5.6 ● ● ● ● ● ● ●
6.3 ● ● ●
7.1 ● ● ● ● ● ● ●
8.0 ● ● ●
9.0 ● ● ● ●
10.0 ● ● ● ●
11.2 ● ● ● ● ●
12.5 ● ● ● ● ●
14.0 ● ● ● ● ●
16.0 ●
The DRV-Series product has rich product line and various capacities, thus meeting the different demands of
clients. The reasonable configuration can lower customer investment and operating costs.
High ESP ducted unit: 19.5/25.5/41/52/62/79 kW
Fresh air handling unit: 25/28/45/56 kW
IDU Capacity Table

21. 4-way cassette type DCA
360° sounded supply air
Supply air directly
3D spiral impeller, low noise fan
Small size design, easy installation
1100 mm pump liftting
application:
Office, canteen,
living room
Cooling
capacity
kW 2.8 3.6 4.5 5.0 5.6 6.3 7.1 8.0 9.0 10.0 11.2 12.5 14.0 16.0
Body dimension
(L×W×H)
mm 840*840*230 840*840*300
Panel
dimension
(L×W×H)
mm 950*950*50
DRV IDU

22. 2-way cassette type DCD
Cooling
capacity kW
2.8 3.6 4.5 5.6 7.1 8 9 10 11.2 12.5 14
Panel
dimension mm
1083*630*33 1203*630*33 1443*630*33 1923*630*33
Body
dimension mm
840*520*315 960*520*315 1200*520*315 1680*520*315
Application:
Narrow
corridor/hall
DRV IDU
750mm pump lifting
Small size design, easy installation
Compact impeller, low noise fan
Supply air directly
Appropriate for the narrow hall

23. 1-way cassette type DCS
Cooling capacity kW 2.8 3.6 4.5 5.6 7.1
Panel dimension mm 1070*520*33 1380*550*33
Body dimension mm 870*460*250 1180*495*290
Application:
Narrow areas
750mm pump lift
Compact motor and fan, low noise running
DRV IDU
Small size design, easy
installation
Wide angle supply air

24. Cooling capacity kW 2.2/2.5 2.8/3.2 3.2/3.6/4.0 4.5/5.0 5.6 6.3/7.1
Dimension mm 700*450*200 920*450*200 1140*450*200
Ultra-thin type DLD-AC
Application:
Room which has narrow ceiling
Body thickness 200mm, compact design
6-P motor, ESP can be up to 12Pa
Smart installation
Small size and low noise fan
DRV IDU

25. Standard type DLD-AB
Application:
Office/room/hall which
has narrow ceiling
Body thickness 250mm, compact design
Large range of supply ESP (max.
up to 70Pa)
Smart installation
1100mm pump lifting
High efficiency and low noise fan
DRV IDU
Cooling
capacity
kW
7.1 8 9 10 11 12.5 14 16
Dimension
mm
1350*515*250 1350*557*292

26. High static pressure duct type DHD
Application:
Shopping mall/meeting
room/warehouse which has
large space
6-P motor, large range of ESP
Can be connected high ESP duct,
for max. 100Pa
Low noise fan ( advanced in
industry)
Cooling capacity kW 10 11.2 12.5 14
Dimension mm 1200*750*400
DRV IDU

27. Floor ceiling type DCF
Floor standing or ceiling
2.8kW~14kW
Large range of supply air
Easy installation and maintenance
Large-diameter and low noise fan
Application:
Space without ceiling
Cooling Capacity kW 2.8 3.6 5.6 7.1 9 11.2 12.5 14
Dimension mm 905*673*243 1288*673*243 1672*673*243
DRV IDU

28. Wall mounted type DWM
Streamlined design
Unique double-deck, automtic
swing, wide range of supply air
Smooth air flow
field installation, convenient maintenance
Filter &panel, convenient to clean
Application:
Small space which has no ceiling
Cooling Capacity kW 2.8 3.6/4.0 5.6 6.3/7.1
Dimension (mm) 970*315*235 1100*315*235
DRV IDUs

29. Advantages: 1. In comparison to modular units, the initial investment is equivalent, and the
operating cost is reduced by about 20%.
2. IDU can integrate the purifying function (DEKON showcases strengths in the
purifying field).
3. Static pressure can be customized flexibly as needed.
Solution to Large Space Sites –
Large Capacity Duct-type IDU
Maximum
capacity
20 HP
Air outlet
static
pressure
300 Pa
Maximum
air flow
9000 m3/h
Cooling capacity
kW
19.5 25.5 41 52 62 79
Dimension mm 1451*1204*608 1951*1604*808 2293*1604*1008

30. Intelligent Control System
04
• Independent control
• Centralized control
• BMS control system
• Intelligent management and household-based charging system
• Intelligent hotel chain

31. ■ Independent control
Operation, shutdown, temperature setting,
swing, sleep, power failure memory, etc.
Mode switching
Operating status display on the LCD screen
Temperature regulation and timed power-on/off
function
Fault code display function
■ Centralized control
Able to implement centralized control or separate
control on 64 IDUs (8 systems)
Mode locking and single unit query/all control functions
Setting air conditioner operation start and end time
Fault indication, uniform control interface and
humanized operation interface Mode switching
The maximum control signal line of 1000 m
Operating status monitoring function and fault code
display function
Intelligent Control

32. ■ Building automation (BMS) system
DRV-Adopts multiple automatic control systems to easily access the building automation system such as MODBUS/LONWORKS/BACNET,
and full automatic control of the system is realized through a computer. The control function is powerful, and operations are simple and
clear.
Connecting to a maximum of 1024 IDUs and 16 sets of systems
Powering on/off the air conditioner, controlling operation, and
monitoring the operating status
Monitoring the IDU fault code
Monitoring and setting the IDU temperature
Monitoring and switching the operating mode
Setting remote controller permissions
Free grouping and zone management
Perfect schedule management function
Historical data record
Schedule control function of week, month and year
Single-unit or centralized operation, shutdown, temperature
setting, mode switching, etc
Interlock control (fire alarm, door lock, fault, etc.)
Intelligent Control
LonWorks system
Ethernet
Fire control Disaster
prevention
Lighting
BACnet system
Ethernet
Fire control Disaster
prevention
Lighting

33. Intelligent management and household-based charging system:
The system provides the complete unit monitoring and control functions and can realize all-dimensional dynamic monitoring on the ODU
operating status. Network control is realized for a maximum of 2048 IDUs in 32 systems, and the control signal of the data acquisition
m o d u l e
can reach the maximum distance of 1200 m.
The cooling system topology map can be set and displayed visually.
The market-tested electricity fee distribution algorithm implements convenient electricity fee distribution management, and detailed
h i s t o r i c a l
data forms can be generated.
User accounts, electricity prices and groups can be set. The user can realize flexible management on household-based charging of VRF
units.
System energy saving settings: 1) Temperature management - intelligent temperature management adopted for cooling/heating; 2) air
conditioner use time management
Intelligent Control
R5232-R5485 module
Data
acquisition module
Data
acquisition module
Data
acquisition module
Ammeter
Ammeter
Ammeter
Maximum 64
Maximum 64
Maximum 64

34. Intelligent hotel chain
The specially designed hotel door card can be
selected for application occasions such as hotels.
When the door card is inserted, the IDU can be
controlled freely; when the door card is removed,
the IDU is powered off automaDEKONlly and stays in
the standby mode. Note: The IDU cannot be
disconnected from the power supply when the door
card is removed; otherwise liquid return will occur in
the system, damaging the compressor.
Intelligent Control

35. DEKON
We have been working hard
all the way.