Creating Maximum Comfort; Inverter Technology - Vrvii & Vrv-Wii - Daikin VRV II Series Technical Data Manual

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Creating maximum comfort

1-1 Inverter technology - VRVII & VRV-WII
The linear VRV system makes use of a variable Proportional Integral (PI) control system which uses refrigerant pressure sensors to give added control
over inverter and ON/OFF control compressors in order to abbreviate control steps into smaller units to provide precise control in both small and larger
areas.
This in turn enables individual control of up to 40 indoor units of different capacity and type at a ratio of 50~130 % in comparison with outdoor units
capacity. 5 HP outdoor units use inverter control compressors only.
5HP Outdoor Unit
100%
Inverter
Control
24%
Large
8,10,12HP Outdoor Unit
100%
Nr. 1
Compressor
Inverter Control
Nr. 2
Compressor
100% Operation
14%
Large
• VRVII & VRV-WII features
210Hz~52Hz
20 Steps
Load
Small
210Hz~52Hz
+ Nr. 2 Compressor
29 Steps
Nr. 1
Compressor
Inverter Control
Load
Small
• Systems • VRVII & VRV-WII features
14,16HP Outdoor Unit
100%
210Hz~52Hz
+ Nr. 2 + Nr. 3
Compressor
Nr. 1
Compressor
35 Steps
Inverter Control
Nr. 3
Compressor
Nr. 1
100% Operation
Compressor
Inverter Control
Nr. 2 Nr. 2
Compressor
Compressor
100% Operation 100% Operation
10%
Load
Large
3
1
Inverter Control
210Hz~52Hz 20 steps
Nr. 1
Compressor
Inverter Control
Small
3