Daikin VRV II Series Technical Data Manual

Also see for VRV - WII: Service manual Technical data Manual Technical data

Daikin VRV II Series Technical Data Manual Manual pdf 8 page image

2• Systems • VRVII & VRV-WII features 7• VRVII & VRV-WII features2 Energy efficient solution2-5 Low operation sound level - VRVII• Continuous research by Daikin into reducing operation sound levels has resulted in the development of a purpose designed inverter scroll compressorand fan.• The new grille and fan offer low noise, high volume airflow and are housed in a compact casing together with the associated compressorcomponents. The use of this new technology assembly enables a 16hp unit to be housed in a single casing.Aero spiral fan:Bending the fan blade edge reduces turbulence, resulting in less pressure lossAero fitting grille:New shape promotes spiral discharge airflow, resulting in reduced pressure loss• Night quiet function (max. -8dBA)During night time, sound level of the outdoor unit can be reduced for a certain period : starting time and ending time can be inputVRV-WIIWater-cooled air conditioning can be acceptable in certain critical areas in which the operating sound of air-cooled air conditioning could be a littleintrusive. This results from:• the low operating sound level of the condensing unit• indoor installation capabilities of the unit• custom engineered sound level of the dry coolerVRVII & VRV-WII• Daikin indoor units have very low sound operation levels, down to 25 dBA.NOTES1 This function is available in setting at site.2 The relationship of outdoor temperature (load) and time shown in the graph is just an example.dB(A) Perceived loudness Sound0 Treshold of hearing -20 Extremely soft Rustling leaves40 Very soft Quiet room60 Moderately loud Normal conversation80 Very loud City traffic noise100 Extremely loud Symphonic orchestra120 Threshold of feeling Jet taking off508:00 12:00 16:00 20:00 0:00 4:00 8:0050100Capability %Load %Night mode starts580external signal inputto outdoor PCBNight-modeMax. -8 dBa (10HP)Night modendsOperationsound dBADaikin indoor units