Dual Sensing Technology in VRF
Midea Commercial Air Conditioner
Organised by
Content
1. HVAC Trend & Saudi Market
2. Inverter Technology
3. Dual Sensing & VRF Key Technologies
4. Midea V6 Series VRF Indoor & Control System
5. About Midea
1. HVAC Trend and Saudi Market
1
General Facts About World Air-conditioning Market
2017-2022 World AC market by Value US$B CAGR 5.5% 2018 World AC market by Region US$B
127.95 61.14
122.12
116.7
111.36
106.78
102.75
23.05
11.82 10.77
AMERICAS(22%) ASIA EUROPE(11%) MIDDLE EAST,
PACIFIC(57%) INDIA,
2017 2018 2019 2020 2021 2022 AFRICA(10%)
Source: The Building Services Research and Information Association(BSRIA)
• In 2018, the world AC market value reached 106.78 Billion US Dollars;
• From 2017 to 2022, the CAGR of world AC market value is estimated as 5.5%;
• In 2018, the world largest AC market is Asia Pacific market which takes 57%, followed by
Americas 22%, Europe 11%, Middle East & India & Africa 10%;
2
2018 Global AC Breakdown by Products
AHU&FCU Room
7% AC(Windows,
PTAC,
Chillers Portables)
8% 3%
Indoor • The total commercial products(Single
Packaged Ducted, Multi Splits, VRF, Large Packaged,
0%
Rooftop Chillers, AHU and FCU) take around 46% of
4%
the global market value, 49 Billion US
Dollars;
• In 2018, the Unducted units takes 54% of the
VRF
13% global AC market value, dropped around 1%
compared to it in 2016, at the same time the
Single
Unducted VRF increased 1% compared to it in 2016,
51% the VRF is gradually taking the share;
Multi Splits
3%
Single Ducted
11%
Source: The Building Services Research and Information Association(BSRIA)
3
HVAC Industry Trends
The industry is transforming from the
Traditional Current traditional AC installation to current
technologies in terms of:
• Energy saving
• Comfort feeling
• Installation flexibility
Residential
• Maintenance
• Aesthetics
Single Split AC VRF Technology
The current trends of Inverter VRF
and VFD Inverter Driven technologies
are strongly recommended to be
used concerning all the terms
Central Plant mentioned above, specially in
Retrofit Applications.
Heavy Water System VFD Inverter Driven
Smart control and Building
management are also the new trends
in HVAC industry.
5
VRF Is Rising In The World
As Asian countries and Western Europe are getting market maturity of VRF products,
Middle East, on the other hand, is in the development and growth stage.
6
General Facts About Middle East AC Market
2018 Main Middle East Market Value (M USD)
46.3
95.2
189.3
82.3
37.6
123.9
50.2 51.3
64.3
93.4
123.8
50.7 148.3
544.7 5.7
104.3 51.9
12.3
19
32.6 68.2
148.7 18.4
13.5 14.4
36.9 1 28.8
15.8
19.6 58.9
101.7 35
23 292.6
193.6 240.5 0 49.2
178.4 80.5 65.9
18.7 7.9 29.1
2.6 25.4 17.2
SAUDI ARABIA UAE EGYPT KUWAIT QATAR IRAN
Room AC Single Unducted Single Ducted VRF Large Packaged Chiller AHU FCU
Source: The Building Services Research and Information Association(BSRIA)
• Saudi Arabia is the largest AC market and largest Chiller market in Middle East region,
the total market value is around 1.3 Billion USD;
• UAE is the second large AC market and largest VRF market in Middle East region;
• Single Unducted AC is still the dominant product in Middle East;
7
Saudi Arabia HVAC Industry Overview
2018 Saudi Arabia Market by Product Category Single Splits VRF
(by Value) 650 40
600
550 20
500
450 0
4% 2016 2017 2018 2016 2017 2018
7% 14%
Single Splits VRF
15%
Rooftop
85
6% 80
75
3% 42% 2016 2017 2018
9% Rooftop
Chiller
190
180
Room AC Single Unducted Single Ducted VRF 2016 2017 2018
Rooftop Chiller AHU FCU Chiller
Source: The Building Services Research and Information Association(BSRIA)
• Single Split is the major product applied in the Industry(50%+), followed by
Chiller;
• Although VRF is much less considered compared to Single Splits and Chillers, but
it is the only category recorded stable and great growth(CAGR 18%) in the past
few years despite of the slowdown of construction business.
8
Saudi Arabia Market Overview
Market distribution allocated
geographically in three major areas:
• Central region: Riyadh, amounting
to 35-40% of the market;
• Western region: Jeddah, Mecca,
Medina, amounting to 25% of the
market;
• Eastern region: Around Dammam,
amounting to 15% of the market;
• The rest 20-25% are shared
between all the other regions;
9
Saudi Arabia Market Overview
Saudi Arabia VRF Market, Volume Units,
2015-2022
7148
6251
5466
4781
4083
3440
2450
1800
2015 2016 2017 2018 2019 2020 2021 2022
VRF
Source: The Building Services Research and Information Association(BSRIA)
• The Saudi Arabian market is looking at the market in UAE and is replicating its
scenario;
• There is a noticeable ongoing switch from chillers and larger single splits to VRFs,
hence, there was a very large growth in the VRF market value in 2018 in spite of
price per HP being reduced especially on larger projects;
• Rooftop applications are increasingly attacked by VRFs
• VRFs are attacking education sector and lots of other traditional applications of
air-cooled chillers;
• Mini VRFs started to form properly in 2018;
2. Inverter Technology
10
The Application of Inverter and VSD Technology
• DC fan motors(Indoor & outdoor, FCU, Heat pump)
• Inverter Split Wall AC
• Inverter Ducted AC
• VRF
• Rooftops
• Inverter Scroll & Screw Chiller
• VFD Centrifugal Chiller
11
Inverter Advantages: Energy Saving
Non Inverter Inverter
The capacity supplied matches the real demand
12
Inverter Advantages: Lower Cost
• Inverter technology could help to reduce up to 50% of energy consumption which
reduce massively the cost;
• An inverter AC works on a wider power range, for example, a 18K Btu/h inverter
AC can achieve 20K, 12K and even 1K according to the desired temperature,
instead a non-inverter one can only work at the 18K all the time;
13
Inverter Advantages: Comfort
Innovated inverter technology boost up the
frequency as soon as the AC turns on, people can
enjoy comfortable and cooling air as fast as 30
seconds.
14
Inverter Advantages: Works Under Extreme Conditions
The advanced tropical inverter compressor is designed to withstand the most
extreme weather conditions even when the outside temperature reaches 60°C
3. Dual Sensing & VRF Key Technologies
15
Unique Innovations- Largest Capacity & Widest Range
• 32HP-The World's Largest Single Unit Capacity
• Widest capacity range – from 8 to 96HP combinable models (V6 )
• Besides of the combinable models, the individual V6 series provides 13 models with 2HP increment
Max. combination capacity
96HP/240kW/88RT
in HVAC industry
16
Unique Innovations- Less Footprint & Less Cost
• Space Saving & Economical Installation Cost, enjoys a max. 40% reduction in footprint compared
with other brands at the same capacity and at the same time it costs less on installation.
17
Unique Innovations- More Indoor Units Connection
Up to 53 IDUs connectable for a single outdoor unit
19
18 DUAL SENSING TECHNOLOGY
EMS(Energy Management System)
During MidSeason , less capacity is needed to cool /heat a space
EMS measure both temperature and humidity levels for indoor and outdoor conditions
Much Accurate Freon temperature and volume is acknowledged leading to less compressor work
Up to 30% Seasonal Energy Saving compared to Conventional VRF System
Key technologies– Continuous running when Indoor unit repair mode
• In case of one particular IDU needs to be repaired, it can be power off
without any interruption to the system’s operation.
• In case of indoor unit disconnected (H7 display on ODU PCB), the system
will keep running.
Power off/H7 error
*Need to contact the Midea local distributor
The system can be repaired without interruption to normal operation.
20
Unique Innovations- EMS(Energy Management System)
Capacity Output Limitation for shortage of electricity
• With the integration of EMS (Energy Management System), For projects with limit electricity supply, V6 can be set to
output 40-100% capacity.
• It’s also helpful for the buildings short of electricity.
• Limit the max. capacity output
• Reduce power consumption
• Ensure basic cooling/heating
21
Unique Innovations- Pre-protection of the Main Components
Electrical Protections - Phase Sequence Detection Circuit
• Midea V6 uses special internal protection circuitry to protect system from wrong power supply.
• In case of a wrong connection of the three-phase electricity wiring, it’s capable to prevent the damage of electric
control devices such as main PCB, Inverter Module, as well as the compressors.
22
Key Technologies- Large Capacity EVI Compressor
• EVI Large capacity, single compressor capacity up to 18HP
*EVI(Enhanced Vapor Injection)
• Two-stage compression effect provides efficient heating operation in low temperature
conditions
Subcooling in Heat
Exchanger Increases
Cooling Capacity
25
Key Technologies- Expertise in Inverter Driver
12+ year collaborations with IR (International Rectifier)
Adopting precise Sine wave by using IPM (Intelligent Power Module), High power factor (due to reducing Inverter loss), to supply a
uniform current to each phase so as to smooth motor rotation torque.
26
Key Technologies- Optimized Heat Exchanger
Increased heat exchanging area without increasing footprint
• 24-32HP units use high efficiency 3-rows G-type 4-sided heat exchanger which heat exchange area is 1.5 times than 22HP unit.
• The 24-32HP units also use super big size fan which diameter is up to 750mm.
27
Key Technologies- Super High Efficiency
High Efficiency –EER & COP
To Meet New EUROVENT Efficiency Regulations
• 8HP EER up to 4.75W/W
• 8HP COP up to 5.5W/W
28
Key Technologies- Optimized Refrigerant Circuit
2-stage sub cooling
29
Key Technologies- Heavy Anti-corrosion (Optional)
• In order to perform even in corrosive environments the V6 provides an option to
customize stronger protection from various corrosive external environments such as
seaside with high salt contamination.
31
Key Technologies- Enhanced Comfort
• V6 outdoor unit uses multiple and high precision EXVs to create
comfort indoor environment.
• The EXV control precision is up to 480 stages which can precisely
control refrigerant flow and guarantee stable indoor temperature.
• * Some models with 0-3000 pulse EXV
33
Key Technologies- High Flexibility
Ease of Installation - Flexible Piping
Due to improved supercooling circuit and refrigerant controlling technologies, V6 allows designer/installer more
flexible installation design.
34
Key Technologies- High Stability
Stable and Reliable System- Cycle Duty Operation
• Duty cycling equalizes the running time of the outdoor units in a multiple-unit system and of the compressors in each
unit, significantly extending compressor lifespan.
35
Key Technologies- High Stability
• In one unit with two compressors, if one compressor failed, the other compressor can be backup instead of the failed one
to maintain up to 4 days interim capacity, allowing time for maintenance or repair while comfort remains guaranteed.
36
Key Technologies- Various Silent Operation Modes
High comfort - Night silent operation
• The night silent mode feature, which is easily configured on the outdoor unit's PCB, includes various scheduling options
that can be used to reduce noise levels at times when low noise operation is required.
• Night silent operation will be activated X (6, 8) hours after the peak temperature during daytime, and it will get back to
normal operation after Y (8,10,12) hours.
37
Key Technologies- Ease of Installation
ESP. up to 60Pa
• Stronger DC fan motor enables higher E.S.P
• Ensure reliable installation and operation even
under high external static pressure in places such
as high rise building.
• Specially applicable for the floor by floor
installation in veranda.
40
Key Technologies- Ease of Installation
• V6 system can be charged with the necessary amount of refrigerant automatically via a push button on the PCB.
• Automatic charging will stop once the appropriate amount of refrigerant has been transferred.
• Need to be customized.
Conventional manual charge:
1. Calculation of additional refrigerant charging
volume
2. Measuring the weight of the cylinder
3. Charging the unit with additional refrigerant
41
Key Technologies- Ease of Service
Ease of Service—— Refrigerant recycling function (optional)
• When outdoor or indoor units have malfunctions, this function can collect its refrigerant before servicing.
42
Key Technologies- High Adaptation
43
Key Technologies- Ease of Access and Service
• Compressors are located near the front panel, which simplifies checks and
enables valve or compressor parts to be replaced easily
• An additional auxiliary small PCB is installed in the side columns, this
design greatly help the installer or service man to set Auto-commissioning
or CHECK the operation status without removing the front panel.
46
Key Technologies- Triple Configurations: Remote and Central
• When easily plug to the PCB from PC, technicians can review diagnostic information and graph data values to help
troubleshoot any issue with ease.
• Real-time values are available for the outdoor and indoor units and can be graphed to evaluate operating trends.
• Touch screen control: Visual schematic for monitoring and control of each unit's status and parameters through a
clear visual representation of the system layout.
• IMM Pro: Database, IMM Server and IMM Client all automatically configured
47
Key Technologies- Triple Configurations: Network
• Through the Midea cloud server, it enable the IDU and ODU equipment to connect to our monitoring center over the
internet(2G/3G/4G/5G networks*).
• We continually monitor data in your equipment, so we know exactly how your systems are performing and we can even
advise maintenance personnel in advance if service is required.
3. Midea VRF V6 Series Indoor Units
48
Complete Solutions- More Indoor Units to Choose
49
Complete Solutions- Indoor Comfort and Efficiency
High efficiency DC fan motor Quiet operation
The power consumption of DC fan motor can be The low sound operation DC fan motor and
reduced greatly in comparison to corresponding optimized fan blades guarantees the air discharge
AC type. smoothly and provides a quiet living environment.
Constant level of indoor air temp. 5-step swing louver
The DC inverter fan motor adjusts of air flow The air id comfortably spread upwards and
based on the thermal load instantly providing downwards thanks to the 5-step swing louver
less temperature fluctuation and an improved that can be programmed via the controller.
living environment.
50
Complete Solutions- Indoor Comfort and Efficiency
Static pressure 20 steps control(Duct Unit)
Depending on the installation environment, medium static pressure duct is controlled
the static pressure up to 10 steps and high static pressure duct is controlled the static
pressure up to 20 steps via wired remote controller, for providing comfortable
environment suitable for any environment.
Fresh air intake
On selected models, a reserved outside air intake
port allows outdoor air to be introduced directly into
the unit, negating the need for a separate ventilation
system.
7-speed fan control
7 indoor fan speeds provide control flexibility to meet the needs of different indoor
conditions.
51
Complete Solutions- Convenience
High-lift drain pump
A drain pump with a 750mm or 500mm pump head is fitted as standard
or optional, simplifying installation of the drain piping.
Flexible installation
For medium static pressure duct unit, to provide the flexibility to adapt to differing installation situations, the air inlet
may be positioned either on the underside or the rear of the unit.
For wall mounted units, the refrigerant outlet direction Ceiling/Floor units can be installed either on the ceiling
can be left, right or rear as the installation situation or the floor, providing flexibility to accommodate a wide
requires. A new fixing plate design speeds installation range of room designs.
and provides extra stability.
52
Complete Solutions- Multiple ESP Modes of Indoor Units
Suitable for different kinds of rooms and easy operation
High efficiency filter mode
For indoor units with high efficiency
filter
Powerful mode
For large space and high ceiling area
Be flexible to select different
ESP modes for indoor units
through wired controller.
Standard mode
For normal use(default)
53
Complete Solutions- DX AHU Connection
• Max. 4 AHU control kits can be combined, connectable DX
AHU capacity reaches up to 224kW(80HP)
• Can communicate with Midea VRF outdoor units, other brand
AHU Connection AHU or indoor units, realized combination control
Kit 5/10/20HP
• 2 control options: Midea controller or 3rd party AHU DDC
controller
4. Midea VRF V6 Series Control System
54
Control System- Complete Control Solution
57
Control System- Centralized Controllers
Visual Schematic
By importing floor plans and then dragging
and dropping the indoor units to their actual
positions on the floor plan, users can create a
tailored system schematic which enables
monitoring and control of the indoor units
through a clear visual representation of the
system layout.
Group Management
Touch Screen Units can be viewed according to group, system or location, making unit management
Colorful touch screen and vivid display make operation more clearer and more convenient.
convenient and simple
Electricity Charge Distribution Outdoor Unit Configuration
The controllers use the patented Midea Calculation Method to Outdoor unit configuration and settings can be monitored and controlled without
estimate the electricity consumption of the outdoor units and then having to go outdoors
divide it among the indoor units so that the electricity charges can
be equitably divided among building occupants
Energy Management
User can set limits or locks on an indoor units, such as minimum
cooling temperature, maximum heating temperature, fan speed,
operation mode, swing lock, remote controller lock and wired
controller lock.
60
Control System- Network Control
IMM Pro for VRF System
• Touch screen controller can be integrated
• Up to 10 touch screen controllers, 480 VRF system can be connected
61
Control System- BMS Control
BMS Gateway
• BMS Gateways are compatible to multiple communication protocol of BACnet, LonWorks, RS485, Profibus, Modbus, KNX, etc.
• Connectible to BMS or Smart Home system
• Midea is one of member of these associations
62
Control System- Diagnosis Software
Monitor and Diagnose
Midea’s VRF Diagnosis Software tool is used to monitor VRF systems and diagnose system errors. System settings and
operating parameters can be accessed easily and data logs can be reviewed for fault prevention purposes.
Diagrams
A system schematic refrigerant flow diagram and
parameter chart can be generated to provide a
graphical interpretation of the system status
Wiring Schematic Data Logs
Data logs including operating records and
error reports are saved by the software
which is useful for discovering system
issues
63
Control System- Selection Software
VRF Selection Software 4.0 Version
• Basic functions:
1) Load calculation and A/C selection
2) Branch joint and piping drawing
3) Controller selection
4) Report output
• System piping diagram can be drawn manually or automatically
• Integrated with AutoCAD function
• CAD drawing output for wiring/piping diagrams, no additional
requirement for CAD software
• Customizable report generation
• Online updates
• User-friendly
5. About Midea
64
Midea Group- Heritage
1968– 2018： Midea 50 years of growth
65
Midea Group- Corporate Structure
Privately owned publicly listed company led by professional management team.
66
Midea Group Overview
A technologies group in consumer appliances, HVAC systems, robotics and industrial automation
systems, and smart supply chain (logistics).
69
Midea Commercial Air Conditioner Revenue
2.4 Bn from Chinese market
0.8 Bn from Overseas market
30%+ CAGR
70
Midea Commercial Air Conditioner- Product Lineup
To provide the most comprehensive HVAC solutions for any application
71
Midea Commercial Air Conditioner- Product Lineup
72
Midea Commercial Air Conditioner- R&D Investment
73
Midea Commercial Air Conditioner- VRF Global Market Position
74
Midea Commercial Air Conditioner- Chiller Global Market Position
75
Midea Commercial Air Conditioner- Key Reference Projects
Speaker Info
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