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The professional solution for your professional project
3rd Generation of VRV
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What is VRV®? Definition, History, Concept
VRVIII Range Outdoor units, indoor units.
VRVIII features Piping limits, ESP, Back-Up, Quietness, Foot print.
VRVIII environmental bene!ts Efficiency, R410A.
VRVIII controllers Individual, centralized controllers, BMS interfaces.
VRVIII easy design
CONTENT
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VRV®= Variable Refrigerant Volume
Variable: The system responds depending on the required capacity.
Refrigerant: Direct expansion system.
Volume: The refrigerant volume is regulated by an
electronic expansion valve in each indoor unit...
WHAT IS VRV®? - DEFINITION
What is VRV®? → Definition
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POSITION AMONG OTHER AIR CONDITIONING SOLUTIONS
single room
SPLITS
cooling/heating by air
ROOFTOPS
AHU
multiple room
MULTI SPLITS
cooling/heating by water
CHILLERS
+ FANCOILS
What is VRV®? → Position among other air conditioning solutions
residential
RESIDENTIAL
COMMERCIAL mid – to – large size buildings
cooling/heating by refrigerant
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HOW DOES IT WORK? - VRV® Concept
What is VRV? → VRV® concept
Up to 58 Different Type and Capacity Indoor Units
190 m pipe run
6 – 29 T.R. Cooling Capacity
Liquid Gas
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VRV® Concept - OUTDOOR UNIT
What is VRV? → VRV® concept outdoor unit
INV ST1 INV
INV
ST
100%
100%
Comp. capacity control
load
PCB
INV ST P
Inverter compress
or
Inverter fan
• Control of the refrigerant volume by inverter compressor:
Indoor Unit
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VRV® Concept - INDOOR UNIT
What is VRV? → VRV® concept indoor unit
T1 = Inlet refrigerant temperature sensor (liquid) T2 = Outlet refrigerant temperature sensor (gas) T3 = Suction air temperature sensor T4 = Set temperature from Remote controller air temperature
Suction
Discharge
Plower speed
Liquid
Gas
Electronic expansion valve (0~2000 pulses)
Evap
orat
or
T4
T1
T3
Blower
T2
CPU
Modulating cooling
capacity gives optimum comfort
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HOW DOES IT WORK? - VRV® Concept
What is VRV? → VRV® concept
ST1 ST1
PCB
P INV
T
CPU
T
CPU
T
CPU
T
CPU
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What is VRV®? Definition, History, Concept
VRVIII Range Outdoor units, indoor units.
VRVIII features Piping limits, ESP, Back-Up, Quietness, Foot print.
VRVIII environmental bene!ts Efficiency, R410A.
VRVIII controllers Individual, centralized controllers, BMS interfaces.
VRVIII easy design
CONTENT
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14 models
VRV® Capacity RANGE
VRVIII Range → Outdoor units
for high ambient
for cold regions
water cooled
Mini-VRV
Model 8 10 12 16 18 20 22 24 26 28 30 32 34 36
6.4 / 8 / 9.6 ton
12.8 ~ 19.2 ton
20.8 ~ 28.6 ton
6.4 to 28.6 ton
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VRV® Outdoor temperature operation range.
49 kW
Cooling Heating
50
40
30
20
10
0
-10
-20
52°C DB
15,5°C WB
- 20°C WB
- 5°C DB
OPE
RATI
ON
RA
NG
E
Heat Pump High Ambient
VRVIII Range → Outdoor units
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VRV® Indoor units range.
VRVIII Range → Indoor units
Super wide range of well-designed indoor units Roundflow Ceiling mounted
cassette 2-way blow ceiling mounted 4 way blow ceiling mounted Ceiling mounted corner Small concealed ceiling unit
Slim concealed ceiling unit Concealed ceiling unit Concealed ceiling unit Wall mounted unit Ceiling suspended unit
4-way blow ceiling suspend unit
Floor standing unit
Concealed floor standing unit
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VRV® New indoor units
Super wide range of well-designed indoor units Roundflow Ceiling mounted
cassette 2-way blow ceiling mounted
cassette 4 way blow ceiling mounted
cassette Ceiling mounted corner
cassette Small concealed ceiling unit
Slim concealed ceiling unit Concealed ceiling unit Concealed ceiling unit Wall mounted unit Ceiling suspended unit
4-way blow ceiling suspend unit
Floor standing unit
Concealed floor standing unit
à Excellent comfort through 360° air discharge
à Low noise: 28 dB(A)
à Low height (204mm up to 8kW)
à Up to 20% fresh air intake
à Standard drain pump with 850mm lift
à 9 models up to 4 ton
VRVIII Range → Indoor units
Round Flow Cassette
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Roundflow Ceiling mounted
cassette
2-way blow ceiling mounted
cassette
4 way blow ceiling mounted
cassette
Ceiling mounted corner cassette Small concealed ceiling unit
Slim concealed ceiling unit Concealed ceiling unit Concealed ceiling unit Wall mounted unit Ceiling suspended unit
4-way blow ceiling suspend unit Floor standing unit
Concealed floor standing unit
Super wide range of well-designed indoor units
VRV® New indoor units
Automatic adjustment of the fan static pressure
à Adjustable ESP α CFM. à Inverter fan motor à 3 fan speeds. à Low sound level.
VRVIII Range → Indoor units
Inverter Ducted Unit
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What is VRV®? Definition, History, Concept
VRVIII Range Outdoor units, indoor units.
VRVIII features Piping limits, ESP, Back-Up, Quietness, Foot print.
VRVIII environmental bene!ts Efficiency, R410A.
VRVIII controllers Individual, centralized controllers, BMS interfaces.
VRVIII easy design
CONTENT
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Extended piping lengths:
Flexible piping design: max. total piping length: 1000 m
VRVIII features → Piping Limits
Height difference outdoor-indoor Up to 90 m Branch length Up to 90 m Max. actual piping length 165 m
Max. equiv. piping length 190 m
Max. total piping length 1000 m
VRV® Piping limits
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VRV® outdoor unit fan External Static Pressure
High external static pressure 78 Pa
VRVIII features → External Static Pressure
78 Pa
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VRV® outdoor unit Back up function
Reliable operation of the compressors
VRVIII features → Back up function
INV INV ST1 ST1 INV INV ST1 ST1 INV INV ST1 ST1
Trouble
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VRV® sound level
Low operation sound level
- Indoor units: very low sound operation, down to 25dB(A)
- Super Silent Mode function is reducing the outdoor unit sound level down to 45dB(A)*
- 65dB(A) Full load operation sound level for the outdoor unit.
VRVIII features → Low sound level
ü Inverted driven fan motor ü Optimized fan blades design
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VRV® sound level
On site observation
VRVIII features → Low sound level
Dar El Hadi Hotel in Makkah Operated Nov
2007
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VRV® sound level
On site observation
The noise level of
This Extract fan was
Higher than The noise level
of The VRV outdoor
unit ! VRVIII features → Low sound level
Dar El Hadi Hotel in Makkah Operated Nov
2007
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VRV® foot print
Higher Capacity with the same small area
VRVIII features → foot print
376 cm
28.6 ton
3 sqr. meters
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What is VRV®? Definition, History, Concept
VRVIII Range Outdoor units, indoor units.
VRVIII features Piping limits, ESP, Back-Up, Quietness, Foot print.
VRVIII environmental bene!ts Efficiency, R410A.
VRVIII controllers Individual, centralized controllers, BMS interfaces.
VRVIII easy design
CONTENT
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Optimized full and partial load efficiencies
VRVIII environmental benefits → Efficiency
VRV® Energy Efficiency
Dry Bulb outdoor temperature °C
kWatt/ton
Kw
/ to
n
Ø 8HP system Ø 6.4 ton (Nominal) Ø 100% LOAD Ø 18°C indoor WB
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Under partial load conditions power consumption is less
VRV® Partial Load Efficiency
The percentage of the Load Applied on the system
Kw
att /
ton
kWatt/ton
VRVIII environmental benefits → Efficiency
Ø 8HP system Ø 6.4 ton (Nominal) Ø 35°C outdoor DB Ø 18°C indoor WB
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Ozon-friendly refrigerant
Automatic refrigerant charge
VRV® Ozone-friendly refrigerant
VRVIII environmental benefits → Ozone friendly refrigerant
Automatic refrigerant containment check
OK, finish
E3,E4,F3,F6,UF Stop valve is closed
UF Wiring and Piping mis-connection
E3,F6,UF Ref. Over charge
E4,F3 Ref. short
J3,J5,J6,J7,J9 JA,JC,H9,L4
Malfunction of detectors
Indication on CU PCB Indication on RC Trouble
trouble
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What is VRV®? Definition, History, Concept
VRVIII Range Outdoor units, indoor units.
VRVIII features Piping limits, ESP, Back-Up, Quietness, Foot print.
VRVIII environmental bene!ts Efficiency, R410A.
VRVIII controllers Individual, centralized controllers, BMS interfaces.
VRVIII easy design
CONTENT
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VRV® Individual controllers:
VRV Wiring control connection
VRVIII controllers → Individual controllers
Up to 58 indoors
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VRV® Centralized Controllers:
Simply control up to 16 indoor units
VRVIII controllers → centralized controllers
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VRV® Centralized Controllers:
User friendly control systems: network solutions
VRVIII controllers → centralized controllers
Control 1024 indoor units
i-manager
Control 128 indoor units
i-touch
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VRV® Centralized Controllers:
Touch Screen Controller
VRVIII controllers → centralized controllers
128 indoor units can be controlled
ü Windows graphical user interface
ü Tenant Electricity Billing (PPD)
ü Fire alarm forced off connection
ü Yearly schedule timer
ü Password security
ü Web Access
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VRV® Centralized controllers:
I-manager Computer Controller
IPU
VRVIII controllers → centralized controllers
ü Controls up to 1024 indoor units
ü Import your own CAD layout.
ü Tenant Electricity Billing (PPD).
ü Energy Saving (Demand Control & ECO-mode)
ü Web Access
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VRV® Building Management System interfaces
VRV can be connected to any BMS system
Lonworks Networks
Integrated control system connecting VRV® system with BMS system
VRVIII controllers → BMS
Modbus adaptor for VRV indoor unit
Easy integration with home automation and hotel room management systems
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What is VRV®? Definition, History, Concept
VRVIII Range Outdoor units, indoor units.
VRVIII features Piping limits, ESP, Back-Up, Quietness, Foot print.
VRVIII environmental bene!ts Efficiency, R410A.
VRVIII controllers Individual, centralized controllers, BMS interfaces.
VRVIII easy design
CONTENT
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VRV® Design
VRV main system component
Easy Design→ Software tools
VRV indoor units
VRV outdoor units
VRV refnet joints (Y joint)
VRV remote controllers
Advanced Technology
Simple System
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VRV® selection software
User friendly & powerful selection software
VRV® XPRESS VRV® PRO
- user friendly software
- allows rapid VRV® selection of units and pipes
- simple to use - complete
- 3 separate modes: • expert mode:
selection of the most appropriate system + estimation of power consumption
• quick mode: selection of the most appropriate system
• drawing mode enables the user to design a system in no time
Easy Design→ Software tools
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VRV® selection software
User friendly & powerful selection software
Easy Design→ Software tools
VRVxpress
ü Indoor and outdoor units selection.
ü Copper pipes diameters.
ü Refnet joints (Y joints) selection.
ü Controllers selection.
ü Piping diagrams.
ü Wiring diagrams
VRV PRO
ü Heat Load Calculation
ü Energy Simulation
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Thank you for your attention