Daikin VRV Aurora Série Manuel D'installation page 15

<Example of connection>
(1)
Outdoor unit Branch Selector
side
(1) Piping from outdoor units to Branch Selector units
Suction gas pipe
(3 lines): 3 pipes
High/low pressure gas pipe
Liquid pipe
(2) Piping from Branch Selector units to the indoor units, and from refrigerant branch kits to the cooling-only indoor units (*2)
(Suction) gas pipe
(2 lines): 2 pipes
Liquid pipe
(*2) The 2-line gas pipe that is branched from the 3-line pipe and goes to the cooling-only indoor units should be connected to the suction gas pipe.
(*3) Cooling-only units should make up ≤50% of the total capacity of indoor units
.
From outdoor unit (*4)
to indoor unit
Maximum
allowable
length
From first outdoor unit
multi connection pip-
ing kit to outdoor unit
(in a multi system)
From outdoor unit to
indoor unit
Allowable
From indoor unit to
height differ-
indoor unit
ence
From outdoor unit to
outdoor unit
Allowable length after branch (*5)
(*4) In the case of an outdoor units multi system, "outdoor unit" should be read as the "first outdoor unit multi connection piping kit", seen from the
indoor units side.
(*5) In the case of a multi Branch Selector unit, it should be read as the "REFNET header", and the allowable length of piping should be selected.
In the case where only 1 multi Branch Selector unit is included in the system, the actual piping length from each branch points of the multi
Branch Selector unit to each indoor units should be ≤130 ft. (40 m).
3P477778-1J English
(2)
Indoor unit
unit side
Actual piping length from the outdoor unit (*4) to the indoor unit: ≤540 ft. (165 m)
(Example) 4 : a+d+g+i≤540 ft. (165 m), 7 : a+b+c+ +m+o≤540 ft. (165 m),
Actual piping length
Equivalent piping length from the outdoor unit (*4) to the indoor unit: ≤623 ft.
(190 m) (*6)
Equivalent length (Calculate the equivalent piping length for the REFNET joint as 1.6 ft. (0.5 m),
REFNET header as 3.3 ft. (1 m), BS4
as 33 ft. (10 m), BSQ36
Total actual piping length from the outdoor unit (*4) to all indoor units: ≤1640 ft.
Total extension
(500 m)
Actual piping length from the first outdoor unit multi connection piping kit to the
outdoor unit: ≤33 ft. (10 m)
Equivalent piping length from the first outdoor unit multi connection piping kit to the
outdoor unit: ≤43 ft. (13 m)
Actual piping length
Equivalent length
Height difference between outdoor unit and indoor unit (H1): ≤164 ft. (50 m) (if
Height difference
outdoor unit is lower than indoor unit, ≤130 ft. (40 m)) (*7)
Actual piping length X Height difference between indoor units (H2)
X ≤ 540 ft. (165 m)
Height difference
X ≤ 390 ft. (120 m)
Height difference Height difference between outdoor units (H3): ≤16 ft. (5 m)
Actual piping length from the first REFNET joint or REFNET header to indoor
unit: ≤130 ft. (40 m) (*8)
Actual piping length
(Example) 4 : d+g+i≤130 ft. (40 m), 7 : b+c+ +m+o≤130 ft. (40 m),
8 : a+b+c+p≤540 ft. (165 m)
6Q54TVJ as 19 ft. (6 m), BS8 to 12Q54TVJ
•
60TVJ as 13 ft. (4 m), and BSQ96TVJ as 19 ft. (6 m).)
•
Outdoor unit
s
t
s≤33 ft. (10 m) (equivalent length≤43 ft. (13 m))
t≤33 ft. (10 m) (equivalent length≤43 ft. (13 m))
≤ 49 ft. (15 m)
≤ 98 ft. (30 m)
8 : b+c+p≤130 ft. (40 m)
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