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*Specifications, designs and other content appearing in this brochure are current as of April 2014 but subject to change without notice.
Warning Ask a qualified installer or contractor to install this product. Do not try to install the product yourself. Improper installation can result in water or refrigerant leakage, electrical shock, fire or explosion.
Use only those parts and accessories supplied or specified by Daikin. Ask a qualified installer or contractor to install those parts and accessories. Use of unauthorised parts and accessories or improper installation of parts and accessories can result in water or refrigerant leakage, electrical shock, fire or explosion.
Read the User's Manual carefully before using this product. The User's Manual provides important safety instructions and warnings. Be sure to follow these instructions and warnings.
If you have any enquiries, please contact your local importer, distributor and/or retailer.
Cautions on product corrosion1. Air conditioners should not be installed in areas where corrosive gases, such as acid gas or alkaline gas, are produced.2. If the outdoor unit is to be installed close to the sea shore, direct exposure to the sea breeze should be avoided. If you need to install the outdoor unit close to the sea shore, contact your local distributor.
© All rights reserved
VRV+AHU SystemDAIKIN NEW STANDARD SERIES UNIT MODEL AHUR-CA/SA
PR
EV
IEW
AP
VV
DT
140
2
Daikin Industries (Thailand) Ltd.United Business Center II Building, Floor 17591 Sukhumvit Rd, Sukhumvit 33,North Klongton, Wattana, Bangkok 10110
VRV+AHU Applications
Sports Hall
Shopping Mall
Factory
Hospital
Lobby
Airport
Warehouse
What is VRV?Daikin VRV system is a multi-split type air conditioner for commercial buildings that uses variable refrigerant flow control developed by Daikin.
It enables long piping length up to 165m and maximum level difference (between outdoor and indoor units) of 90m to provide more design flexibility which can match even large-sized buildings.
It allows one touch selection control using intelligent Touch Manager and includes options to link with BACnet® to enhance the Building Management System (BMS).
Daikin release a new standard series unit model AHUR-CA/SA (Single Skin / Double Skin). It is a DX AHU system that is specially designed to work with the VRV IV outdoor unit. This new model release is an inlet temperature control type AHU. This will enable the users to reduce maintenance costs and enjoy more space savings.
AHUR-CA/SA also improves the indoor air quality from haze, pollutants, etc using the options of pre-filers and primary filters. VRV+AHU are the only total AHU solutions provided and manufactured completely by Daikin.
Total Daikin Solutions (All products
manufacture by Daikin Factory)
Total Daikin Solutions (All products
manufacture by Daikin Factory)
Air Handling Unit
VRV+AHU System Connection Overview
VRV+AHU Introduction
01 02
???? ?
?
?
?
VRV+AHU ApplicationFor small to large commercial spaces Daikin offers a range of R-410A inverter condensing units for use in conjunction with Air Handling Units (AHU) from 6 HP to 60 HP.
AHU provide large volumes and high ESPs (External Static Pressure) enabling the use of extensive ductwork runs. The refrigerant flows through the copper pipes using R-410A and operates like a large VRV fan coil unit.
Daikin AHU represents the ideal solution for large storage places, atrium, lobby, banquet halls, showrooms, exhibition halls, shopping malls, etc.
It also have the options to customize the specifications such as the filtration type, direction of air in-take and discharge, service access door and blower type (backward or forward curves and plug fan).?
Remote Control Wiring (P1P2)
Liquid
Gas
Control Wiring
Showroom
Features of VRV+AHU - Inlet Temperature control
• Harnessing VRV IV current and latest
technology of VRT
• Inverter controlled system (only Z - Control)
• Can be easily controlled via standard wired remote
control (BRC1E62)
• Comes in dual skin type model - double skin panel
model and single skin panel model
• Easily manage using intelligent Touch Manager
central control system
Communication protocol using DIII-Net to
communicate with all existing Dakin
communication devices and even BMS.
• Can be placed indoor or outdoor*
*Optional items required
Benefits of using VRV+AHU
• Quality assured
VRV+AHU are manufactured by Daikin factory.
• Ease of the installation
No additional system such as cooling tower, chiller,
and long water piping system are required. This
also reduces the total system maintance costs.
Flexible design of the ducting system.
• Cover large area with different ducting configuration.
• VRV+AHU can provide ESP up to 500Pa*
(Standard Model)
• Total solution concept
Integrating an AHU into the total building climate
system enables both design and installation
procedures to be based on a single common
technology. This simplifies project follow-up,
installation, commissioning and maintenance
since only one party is involved.
• VRV+AHU system can be coupled and mixed with
other type indoor unit to work together concurrently.
(Connection ratio 50% - 110%)
Options
Wide range of options are available to meet your design
requirements.
Please contact Daikin’s Sales Office regarding below
mentioned options:
• Fan Type
Backward Curve Aerofoil
Plug Fan
• AHU Coil Material Type
Blue Fin
Copper Fin
Gold Fin
Aluminum Tube
Stainless Tube
Anti-Corrosive Epoxy Coating
• AHU Drain Pan Type
Steel Coating with
Acrylic Enamel
Galvanized Steel
• AHU Air Filter Type
Medium Filter
Extra Filter
Synthetic
Bag
HEPA
Aluminum
Cartridge
ULPA
• Special Option
Electric Heater
Mixing Box
Outdoor Roof
Panel Thickness 50mm
• Customisation
Airflow
Capacity
ESP
Discharge Direction
Piping Outlet
Comparison Table and Diagram for Conventional AHU System and VRV+AHU System
Conventional AHU System VRV+AHU System
Easy Maintenance (same as common A/C System)
No Additional Maintenance Cost
Require Small Installation Space(AHU, VRV)
Simple System(HVAC Ducting)
Simple Control(Remote Control / intelligent Touch Manager)
* For ESP more than 500Pa, please contact Daikin’s Sales Office
Require Frequent Maintenance (Cooling Tower + Chiller)
Higher Cost Due to Frequent Maintenance
Require Larger Installation Space(AHU, Chiller, Cooling Tower)
Complex System(HVAC Ducting, Chiller and Water Piping)
Extensive Control (Variable Frequency Device, Variable Air Volume Control)
03 04
VR
V IV
Max
. 90
m
AHU
Office
Office
Office
Basement CarparkChiller
AHU
Office
Office
Office
Lobby Lobby
Free Space
Underground
CoolingTower
Conventional AHU System VRV+AHU System
VRV+AHU Inlet Temperature Standard Series Range
The VRV+AHU standard series are available from the capacity range of 6HP to 60HP, also with airflow ranging from 3,240 CMH – 28,080 CMH.
Airflow (x 103 CMH)
VRV+AHU Standard Series Coil, Expansion Valve Kit and Control BoxAHUR-CA/SA standard series model is using the DX coil. Each DX coil will be connected to one external expansion valve kit (EKEXV) and controlled by one control box kit (EKEQMCB).
VRV+AHU Standard Series Coil
• 3 Type of Coils - 6HP used by 6HP, 12HP AHU unit - 8HP used by 8HP, 16HP AHU unit - 10HP used by 10HP, 20HP, 30HP, 40HP, 50HP, 60HP AHU unit
VRV+AHU Expansion Valve Kit (EKEXV)
• 3 Type AHU Expansion Valve Kit - EKEXV140 for 6HP Coil - EKEXV200 for 8HP Coil - EKEXV250 for 10HP Coil
VRV+AHU Control Box Kit (EKEQMCB)
Possibility Z (Ts/Tr control):Using Daikin wired remote controller (BRC1E62 - optional) Set point can be fixed via standard Daikin wired remote controller. Remote ON/OFF can be achieved by an optional adapter KRP4AA51.
No additional external controller is required. The cooling load is determined from the air suction temperature and set point on the Daikin controller.
Ts = Air suction temperatureTd = Air discharge temperatureTr = Room temperature
Te = Evaporating temperatureAHU = Air Handling Unit
KRP4AA51
Ts Te Td
AHU
Tr RoomBRC1E62
ON / OFF
Daikincontrol box:EKEQMCB
VR
V+
AH
U C
apa
cit
y
60 HP
50 HP
40 HP
30 HP
20 HP
16 HP
12 HP
10 HP
8 HP
6 HP 3.24
4.08
4.68
6.48
8.16
9.36
14.04
18.27
23.40
28.08
0 5 10 15 20 25 30
Comparison for External Static Pressure and Capacity between VRV+AHU and Duct Typed Unit
FXMQ VRV+AHU
0 200
External Static Pressure (Pa)
400 600
From To
100 PaFXMQ 270 Pa
250 PaVRV+AHU 500 Pa
FXMQ
VRV+AHU
0 10 20 30 40 50 60 70
Capacity (HP)
From To
2 HPFXMQ 10 HP
6 HPVRV+AHU 60 HP
Expanded Line Up for Daikin VRV Indoor Series
VRV+AHU offers higher ESP and Capacity as compared to duct typed unit.
VRV+AHU Operation Range
VRV+AHU AHUR-CA/SA operation is similar as other VRV indoor unit. Following table is the list of operation range limit condition for the AHU unit to work.
Cooling
Entering Air Temperature Minimum 14°C WB
On Heat Exchanger AHU Maximum 35°C DB / 25°C WB
Outdoor Unit VRV 4 Minimum -5°C DB
Maximum 43°C DB
Expansion Valve Kit Minimum -20°C WB
Maximum 46°C DB
Control Box Minimum -10°C WB
Maximum 40°C DB
TemperatureRange
VRV AHU Expansion Valve Kit
Front View Side View
VRV AHU Control Box KitEKEQMCB
Application Multi
Outdoor Unit VRV IV
Casing Colour White grey
Material Resin
Dimensions Unit H x W x D mm 132 x 400 x 200
Weight Unit Kg 3.6
Operation Range Cooling Min. ~ Max. ˚CDB -10.0 ~ 40.0
Power Supply
Phase 1 Frequency Hz 50 Voltage V 230
EKEXV250EKEXV200EKEXV140
Casing Colour Ivory white
Material Metal
Dimensions Unit H x W x D mm 401 x 215 x 78
Weight Unit Kg 2.9
Operation Cooling Min. ~ Max. ˚CDB -5.0 ~ 46.0Range
Refrigerant Type R-410A
Liquid Type / OD mm Braze connection / 9.52
Gas Type / OD mm Braze connection / 9.52 Heat Insulation Both inlet and outlet
Pipingconnections
Depth
Hei
gh
t
Width
05 06
VRV Connection to AHU Configuration
Multiple Connections with Other Indoor Unit Configuration
Multiple VRV Systems Connection Configuration
VRV IV6 – 60 HP
VRV IV20 HP
VRV IV20 HP VRV IV
20 HP
VRV IV6 – 20 HP
Single VRV System Connection Configuration
Each coil up to 10 HP (Max combination of 6) = 60 HP
Up to 60 HPMax.6 circuits
VRV Combined System Connection Configuration
07 08
Remote Control Wiring (P1P2) LiquidControl Wiring Gas
AHU SPECIFICATIONSAHU SPECIFICATION VRV+AHU (CA/SA)
CASING / INSULATION(CA SERIES)
CASING / INSULATION(SA SERIES)
CASING-FRAME
COILTUBEFINHEADERFRAMEWORKING PRESSURE
FANTYPEWHEELHOUSINGFRAME
MOTOR
VIBRATION ISOLATOR
DRAIN PAN
AIR FILTER
25mm Thickness Single Skinned Panel0.5mm Thickness White Colourbond Steel Sheet25mm Thickness PU Foam 40Kg/M3
20mm Thickness Single Skinned Panel1.2mm Thickness Steel Sheet with Ivory White Powder Coated20mm Thickness PU Sponge 18Kg/M3 Density
Steel Made With Black Colour Epoxy Paint
DX CoilCopper TubeAluminum MadeCopper TubeGalvanized Steel10Kg/cm2G or Below
(Brand = Kruger)Double Inlet Forward Curved Centrifugal Belt Drive FanGalvanized SteelGalvanized SteelSteel With Polyester Powder Coated
(Brand = Inline)Three-Phrase Induction Motor Totally Enclosed Fan-Cooled TypeProtection = IP55 Insulation Class = F
Spring Isolator
1.2mm (SUS 304)Beneath The Drain Pan is Covered With 20mm PE Insulation 35Kg/M3 Density
(Brand = AAF)Type = R29 Class = G3 (AFI = 80%) washableSize = Full (24" x 24" x 2") Half (12" x 24" x 2")Frame Galvanized Steel
Notes:1. Net capacity includes indoor fan heat.2. Gross capacity does not include indoor fan heat.3. With pre filter, AAF synthetic R29 & class G3 (Wasable) eff 80-85%.4. Motor is induction motor class F, IP 55.5. It is necessary to reduce piping size by reducer when connection (19.1 → 15.9, 22.2 → 19.1, 28.6 → 22.2)6. The connection ratio of the outdoor unit must be within the limits specified by the outdoor unit and must additionally be within 50% and 110%.
Conversion formular
kcal/h=kWx860
cfm=m3/minx35.3
Drawings and Dimension of AHU
1300 x 1300 x 1100
1300 x 1200 x 1100
1500 x 1200 x 1100
1400 x 1500 x 1300
1400 x 1500 x 1300
1500 x 1500 x 1300
1500 x 1900 x 1900
1500 x 1900 x 2200
2800 x 2000 x 1800
2800 x 2100 x 1800
AHUR06CA/SA
AHUR08CA/SA
AHUR10CA/SA
AHUR12CA/SA
AHUR16CA/SA
AHUR20CA/SA
AHUR30CA/SA
AHUR40CA/SA
AHUR50CA/SA
AHUR60CA/SA
ModelDimension
W x D x H (mm)
Total Cooling Capacity KW 16.9 16.8 16.7 16.5 16.4 22.9 22.8 22.7 22.4 22.3 28.4 28.3 28.2 28 27.8 34 33.8 33.7 33.3 33 45.5 45.3 45.1 44.7 44.5
Total Sensible Cooling Capacity KW 12.4 12.3 12.2 12 11.9 16.8 16.7 16.6 16.3 16.2 20.9 20.8 20.7 20.5 20.3 25 24.8 24.7 24.3 24 33.3 33.1 32.9 32.5 32.3
Total Cooling Capacity KW
Sensible Cooling Capacity KW
CMH
⁰CDB/⁰CWB
⁰CDB/⁰CWB
m2
m/s
Pa
Pa
PCS.
PCS.
Pa
Pa 250 300 350 450 500 250 300 350 450 500 250 300 350 450 500 250 300 350 450 500 250 300 350 450 500
Pa 460 510 560 660 710 460 510 560 660 710 460 510 560 660 710 460 510 560 660 710 460 510 560 660 710
KW 3.0 2.2 4.0 3.0
POLE
Volt/Ph./Hz.
amp. 6.76 5.0 8.8 6.76
kg 540 610 630 630
dBA 84 85 86 88 89 77 78 79 81 82 77 78 79 81 82 87 88 89 92 93 87 88 89 91 92
Model / PCS.
Model / PCS.
Liquid pipes mm
Gas pipes *5 mm
Drain pipes mm
620 640Machine Weight 485 495 480 485 530
32 32
Electronic expanison valve Electronic expanison valve
9.5 (Brazing connection) x 2 9.5 (Brazing connection) x 2
19.1 (Brazing connection) x 2 22.2 (Brazing connection) x 2
EKEQMCBV3 / 2 pcs. EKEQMCBV3 / 2 pcs.
EKEXV140 / 2 pcs. EKEXV200 / 2 pcs.
4 4
380-415/3/50 380-415/3/50
6.76 8.8
30 30
FORWARD CURVE
FDA315TM FDA315TM
3.0 4.0
80 80
2 2
2 2
0.982 0.886
1.83 2.56
100 100
DX.COIL(R410A) ф8mm. WAVE SLIT SURFACE & STRAIGHT EDGE
6,480 8,160
27/19 27/19
14.4/13.1 13.6/12.714.4/13.1 13.6/12.7 12.5/12.4
AHUR12CA/SA AHUR16CA/SA
35.8 48.0
26.8 35.8
Refrigerant Control Electronic expanison valve Electronic expanison valve Electronic expanison valve
Panel
PipingConnections
9.5 (Brazing connection) 9.5 (Brazing connection) 9.5 (Brazing connection)
19.1 (Brazing connection) 22.2 (Brazing connection) 28.6 (Brazing connection)
32 32 32
Outlet Sound Level ( Pressure )
Control Box Kit EKEQMCBV3 / 1 pcs. EKEQMCBV3 / 1 pcs. EKEQMCBV3 / 1 pcs.
Expansion Valve Kit EKEXV140 / 1 pcs. EKEXV200 / 1 pcs. EKEXV250 / 1 pcs.
Power Supply 380-415/3/50 380-415/3/50 380-415/3/50
FLA 3.7 5.0 3.7 5.0 5.0
Fan Motor *41.5 2.2 1.5 2.2 2.2
4 4 4
ESP.Initial
Total Statics Pressure
Fan Type FORWARD CURVE
Model FSA315CM FDA250TM FDA250TM
Air Filter Size 24"X24X2" *3 1 1 2
Air PD.In Casing 30 30 30
Air PD.In Pre Filter *3 80 80 80
Air Filter Size 12"X24X2" *3 1 1 -
Coil Face Vel. 1.83 2.56 2.41
Air PD.In Coil 100 100 100
Coil Type
Coil Face Area 0.491 0.443 0.54
Ent.Temp. 27/19 27/19 27/19
Lea.Temp.
17.9 22.3
Air Flow 3,240 4,080 4,680
Model AHUR06CA/SA AHUR08CA/SA AHUR10CA/SA
NET *1
GROSS *217.9 24.0 29.8
13.4
313 429Capacity Index 157 214 266
CA/SA Double Skinned/Single Skinned
Total Cooling Capacity KW 57.3 57.1 56.9 56.4 56.2 86.1 85.8 85.5 84.9 84.6 115 114 114 113 113 144 143 143 142 141 172 172 171 170 169
Total Sensible Cooling Capacity KW 42.3 42.1 41.9 41.4 41.2 63.6 63.3 63 62.4 62.1 84.5 84.2 83.8 83 82.6 106 106 105 104 104 127 127 126 125 124
Total Cooling Capacity KW
Sensible Cooling Capacity KW
CMH
⁰CDB/⁰CWB
⁰CDB/⁰CWB
m2
m/s
Pa
Pa
PCS.
PCS.
Pa
Pa 250 300 350 450 500 250 300 350 450 500 250 300 350 450 500 250 300 350 450 500 250 300 350 450 500
Pa 460 510 560 660 710 460 510 560 660 710 460 510 560 660 710 460 510 560 660 710 460 510 560 660 710
KW 4.0 5.5
POLE
Volt/Ph./Hz.
amp. 8.8 11.5
kg 880 980
dBA 82 83 84 86 88 85 86 87 89 91 85 86 87 89 89 86 87 87 89 90 84 84 85 87 88
Model / PCS.
Model / PCS.
Liquid pipes mm
Gas pipes *5 mm
Drain pipes mm
1460 1540Machine Weight 665 675 895 1000 1420
DX.COIL(R410A) ф8mm. WAVE SLIT SURFACE & STRAIGHT EDGE
32 32 32
Electronic expanison valve Electronic expanison valve Electronic expanison valve
9.5 (Brazing connection) x 4 9.5 (Brazing connection) x 5 9.5 (Brazing connection) x 6
28.6 (Brazing connection) x 4 28.6 (Brazing connection) x 5 28.6 (Brazing connection) x 6
EKEQMCBV3 / 4 pcs. EKEQMCBV3 / 5 pcs. EKEQMCBV3 / 6 pcs.
EKEXV250 / 4 pcs. EKEXV250 / 5 pcs. EKEXV250 / 6 pcs.
380-415/3/50 380-415/3/50 380-415/3/50
15.3 15.3 22.3 22.3
7.5 7.5 11 114 4 4
30 30 30
FORWARD CURVE
FDA500TM FDA560TM FDA630TM
- 4 4
6 8 8
100 100 100
80 80 80
2.16 2.7 3.24
2.41 2.41 2.41
27/19 27/19 27/19
12.5/12.4 12.5/12.4 12.5/12.4
89.2 111.5 133.8
18,720 23,400 28,080
AHUR40CA/SA AHUR50CA/SA AHUR60CA/SA
119.2 149.0 178.8
Refrigerant Control Electronic expanison valve Electronic expanison valve
PipingConnections
9.5 (Brazing connection) x 2 9.5 (Brazing connection) x 3
28.6 (Brazing connection) x 2 28.6 (Brazing connection) x 3
32 32
Outlet Sound Level (Pressure)
Control Box Kit EKEQMCBV3 / 2 pcs. EKEQMCBV3 / 3 pcs.
Expansion Valve Kit EKEXV250 / 2 pcs. EKEXV250 / 3 pcs.
Power Supply 380-415/3/50 380-415/3/50
FLA 6.76 8.8 11.5
Fan Motor *43.0 4.0 5.5
4 4
ESP.Initial
Total Statics Pressure
Fan Type FORWARD CURVE
Model FDA355TM FDA450TM
Air Filter Size 24"X24X2" *3 2 4
Air PD.In Casing 30 30
Air PD.In Pre Filter *3 80 80
Air Filter Size 12"X24X2" *3 2 2
Coil Face Vel. 2.41 2.41
Air PD.In Coil 100 100
Lea.Temp. 12.5/12.4 12.5/12.4
Coil Type
Coil Face Area 1.08 1.62
Air Flow 9,360 14,040
Ent.Temp. 27/19 27/19
Model AHUR20CA/SA AHUR30CA/SA
NET *1
GROSS *259.6 89.4
44.6 66.9
Panel CA/SA Double Skinned/Single Skinned
1064 1330 1586Capacity Index 532 798
10
* Dimension does not include Control Box, Expansion Valve and Pre-filter
Front View
Hei
gh
t
Side View
Depth110
(Filter)Width
3
09
* Dimension does not include Control Box, Expansion Valve and Pre-filter
1
2
3
4
5
6
7
8