Page 2 - launched in 1982. Completely re-engineered to
2 D A I K I N A C ABSOLUTE COMFOR T Daikin’s VRVIII system is the 7th generation of the original Daikin VRV ® launched in 1982. Completely re-engineered to realize opportunities for VRV in taller / larger buildings, it utilizes the latest advances in refrigeration and air-conditioning technology. Th...
Page 3 - Features and Benefits; VRVIII
3 D A I K I N A C ABSOLUTE COMFOR T Features and Benefits n Available up to 20-Ton in one system, 208-230V/60Hz/3ph or 460V/60Hz/3ph n Heat pump (heating and cooling) and heat recovery (simultaneous heating and cooling across multiple zones) systems available n Individual zone control n Can operate ...
Page 4 - VRV offers ease of design and installation; Simple System; Layout; Complicated System; Chilled water; The Features of VRV; Part Load Performance VRV; Why is VRV an efficient alternative?
VRV offers ease of design and installation Top Floor Building Floors Simple System Layout Condensing Unit Fan Coil Units Refrigerant Piping Machine Room Not needed Cooling Tower And also . . . EXP Tank Valves Header Boiler Chiller Pump Water Pipe FCU AHU Machine Room Building Floors Top Floor Compli...
Page 5 - VRVIII opens up opportunities in larger, more complex buildings
DC fan motor • Across entire range of models (from 6 to 20-Ton). • Efficiency improvement by approximately 40% especially at low speed. DC fan motor structure 200 300 400 500 600 700 800 900 1000 0 20 40 80 60 100 Efficiency (%) Motor speed (rpm) AC motor AC motor AC motor DC motor efficiency (compa...
Page 6 - Extended Operation Range
-4°F 8°F 20°F 32°F 44°F 56°F 68°F 80°F 92°F 104°F 110°F 122°F 122 60 -4 -4 Cooling (DB) Heating (WB) 110 23 Standard operation range (cooling) Extended operation range (cooling) Standard operation range (heating) 6 D A I K I N A C ABSOLUTE COMFOR T VRVIII Extended Operation Range Advanced Proportion...
Page 7 - VRVIII Benefits in Heating; Advanced Defrost Cycle Operation in Heating; Heating Operation While on Defrost Operation; Heating operation while on defrost operation; Superior Heating Comfort
7 D A I K I N A C ABSOLUTE COMFOR T VRVIII Benefits in Heating Advanced Defrost Cycle Operation in Heating Heating Operation While on Defrost Operation The first graph below shows the defrost cycle on the previous model where it uses a reverse cycle defrost of 10 to 14 minutes and then has to perfor...
Page 8 - Approximately; VRVIII Heat Recovery
Cooling Cooling Heating Heating Indoor Temperature: 67 °F WB (cooling) 70 °F DB (heating) Outdoor Temperature: 95 °F WB (cooling) 47 °F DB (heating) Power Input Power Input Cooling 5.74kW Heating 6.83kW (22,519 Btu) Simultaneous cooling and heating 5.31kW Approximately 50% Reduction Cooling Cooling ...
Page 9 - Improvement of the cooling/heating changeover; No system interruption in mode changeover; The Daikin Difference
ELECTRONIC EXPANSION VALVE SOLENOID VALVE ELECTRONIC EXPANSION VALVES 3-WAY VALVE Previous Model Liquid pipe Suction gas pipe High/low pressure gas pipe 9 D A I K I N A C ABSOLUTE COMFOR T The new branch selector unit (BSVQ_P) has improved the cooling/heating changeover, oil recovery cycle and sound...
Page 10 - Other VRF layout examples:; -pipe systems usually require a; Branch controller box located at the end of the hallway; Heat Recovery
10ft 10ft 10ft 10ft 10ft 10ft 33ft 17ft 3ft 50ft 67ft 83ft 7ft 33ft 100ft 17ft 17ft 33ft 33ft 50ft 50ft 67ft 67ft 83ft 83ft 100ft 100ft 33ft 33ft 50ft 50ft 33ft 33ft 17ft 17ft 17ft 17ft 33ft 33ft 50ft 50ft Daikin’s layout example: The Daikin 3-pipe system allows for installation of smaller, easily h...
Page 11 - VRVIII’s Outstanding performance in cooling and heating; Cooling
50,000 52 44 36 28 20 Ambient Temperature °F 12 5 -4 60,000 70,000 80,000 90,000 100,000 110,000 DaikinComp. AComp. B 8 9 10 11 12 13 14 15 16 17 EER 72 MBH 96 MBH 108/120 MBH 144 MBH 168 MBH 192 MBH 216 MBH 240 MBH Full load EERHeat Pum p Full load EERHeat Recovery DOE Minim um Level Example VRV Sy...
Page 12 - Environmental consciousness
Flare or flange Shutoff valve Previous Model Fusible plugs BPR Pressure relief valves in low pressure side of system Flare connections And Competitors Outdoor unit Brazed joint High/low pressure gas pipe Suction gas pipe Liquid pipe Equalizing pressure pipe Receiver Fusible plug Fluid line Fluid lin...
Page 13 - Backup Functions; On completion of oil recovery cycle; Back up – redundancy; Back Up Operation
13 D A I K I N A C ABSOLUTE COMFOR T Backup Functions In order to make operation time equal for each compressor in a manifolded system, the outdoor units are used in rotation. The operation priority starts once the following conditions have been met: n On completion of oil recovery cycle n On comple...
Page 14 - Test operation button; Installation & Maintenance; Automatic Charge Function; Friendly Design
Test operation button 109°F 32°F Outdoor temperature Indoor temperature Automatic charge function Manual charge 90°F 50°F 14 D A I K I N A C ABSOLUTE COMFOR T Installation & Maintenance Automatic Charge Function Conventional Way: 1. Calculation of additional refrigerant charging volume2. Chargin...
Page 15 - VRV Indoor Units
15 D A I K I N A C ABSOLUTE COMFOR T VRV Indoor Units Indoor Type Capacity Range MBH 7.5 09 12 18 24 30 36 42 48 54 72 96 Tons 0.6 0.75 1 1.5 2 2.5 3 3.5 4 4.5 6 8 Ducted Vertical air handling unit (horizontal right configuration is possible) FXTQ_PAVJU DC ducted concealed ceiling (medium static) FX...
Page 16 - VRVIII Specifications; Single Module Systems
RXYQ72PAYDRXYQ96PAYDRXYQ108PAYD 16 D A I K I N A C ABSOLUTE COMFOR T 1 Indoor temp. : 80°FDB or 67°FWB / outdoor temp. : 95°FDB / Equivalent piping length : 25 ft (7.5 m), level difference : 0 ft.2 Indoor temp. : 70°FDB / outdoor temp. : 47°FDB or 43°FWB / Equivalent piping length : 25 ft (7.5 m), l...
Page 17 - Double Module Systems
RXYQ144PAYDRXYQ168PAYDRXYQ192PAYD RXYQ216PYDNRRXYQ240PYDNR 17 D A I K I N A C ABSOLUTE COMFOR T 1 Indoor temp. : 80°FDB or 67°FWB / outdoor temp. : 95°FDB / Equivalent piping length : 25 ft (7.5 m), level difference : 0 ft.2 Indoor temp. : 70°FDB / outdoor temp. : 47°FDB or 43°FWB / Equivalent pipin...
Page 24 - VRVIII Installation Space; Standard supplied accessories
VRVIII Installation Space If installed as a single unit(Pattern 1) (Pattern 2) (Pattern 3) When installed in serial(Pattern 1) (Pattern 2) (Pattern 3) 1 3 4 3/8 ≥ 3/8 ≥ 19 5/8 ≥ 11 3/4 ≥ 1 3/8 ≥ 3/8 ≥ 3/4 ≥ 3/4 ≥ 3 4 19 5/8 ≥ 11 3/4 ≥ 1 2 ≥ 2 ≥ 3 4 19 5/8 ≥ 3 7/8 ≥ 1 2 ≥ 3 7/8 ≥ 3 7/8 ≥ 2 ≥ 3 4 19 5...
Page 25 - VRVIII Accessories
VRVIII Accessories 25 D A I K I N A C ABSOLUTE COMFOR T VRVIII Heat Recovery - 208-230V and 460V Unit Model Number REYQ72PAYD REYQ72PATJ REYQ96PAYD REYQ96PATJ REYQ120PAYD REYQ120PATJ REYQ144PAYD REYQ144PATJ REYQ168PAYD REYQ168PATJ REYQ192PAYD REYQ192PATJ REYQ216PYNDR REYQ216PTJUR REYQ240PYNDR REYQ24...
Page 26 - Choosing the right controls; VRV Controls
26 D A I K I N A C ABSOLUTE COMFOR T Unless it is controlled, managed and operated in an appropriate manner, a high-performing system will not be able to provide the energy-efficiency or comfort it claims. Promoting the systemization of control management not only improves efficiency, but also repre...
Page 27 - Connect VRV to your BMS via BACnet; using Daikin’s integrated control system solutions.; Compatible with BACnet and L; Network Compatible Interface; BACnet Network Compatible Interface; Controls that offer freedom to administrators
27 D A I K I N A C ABSOLUTE COMFOR T Connect VRV to your BMS via BACnet ® or L on W orks ® using Daikin’s integrated control system solutions. Compatible with BACnet and L on W orks , the two leading open network communication protocols, the interfaces offered by Daikin provides a seamless connectio...