Daikin VRV Service Manual

What is a VRV System? Si30-408
2 Introduction
1. What is a VRV System?
VRV System
 Thirty or more indoor units can be connected to single system.
 There are "cooling / heating selection -standard- type" and "individual operating system of
cooling and heating" according to type of the system.
 One of the biggest characteristics is mounting of expansion valves ⊗ to the indoor unit as
well as to the outdoor unit.
SkyAir, Residential Air Conditioner
 Pair Type
Single indoor unit is connected to single outdoor unit.
(The expansion valve is mounted to the outdoor unit only.)
 SKY AIR System for Simultaneous Operation (Twin, Triple, and Double-Twin)
These series are included in SkyAir. These types can be connected to two to four indoor
units to single system. However, the individual operation is not available, only the
simultaneous operation.
(The expansion valve is mounted to the outdoor unit only.)
 Multi System for Individual Operation
Each indoor unit can be operated individually.
However, refrigerant piping is connected to each indoor unit using separate connecting
piping, not using halfway branch piping.
(The expansion valve is mounted to outdoor unit by each indoor unit.)
: Position of expansion valve

Daikin VRV Specifications

General

Brand	Daikin
Energy Efficiency	High
Control	Centralized and individual zone control
Inverter Technology	Yes
Type	Variable Refrigerant Volume (VRV)
Cooling Capacity	Varies by model
Heating Capacity	Varies by model
Refrigerant	R-32 or R-410A
Application	Commercial buildings, large residential spaces
SEER	Varies by model
HSPF	Varies by model
EER	Varies by model
COP	Varies by model
Sound Level	Varies by model
Indoor Unit Options	wall-mounted, ducted