Daikin REYQ120AATJ Series, Installation Manual

Page: 17 / 51

14 English
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allowable
length
From outdoor unit (*4)
to indoor unit
Actual piping length
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4
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7
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11
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12
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Equivalent length
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(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
x 6Q54T as 19 ft. (6 m), BS8 to 12Q54T as
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x 60T as 13 ft. (4 m), and BSQ96T as 19 ft. (6 m).)
For the equivalent length of BSF-Q54T , refer to the table below based on the total
capacity of the indoor units to be connected downstream.
Also add 14 ft. (4.3 m) to the below length when calculating an equivalent length to
each indoor unit connected to BSF-Q54T
.
Total capacity of the indoor
units to be connected down-
stream Equivalent length
BSF4Q54T BSF6Q54T BSF8Q54T
< 54 1 ft. (0.4 m) 1 ft. (0.4 m) 1 ft. (0.4 m)
Ű³
1 ft. (0.4 m) 1 ft. (0.4 m) 1 ft. (0.4 m)
Ű³
2 ft. (0.7 m) 2 ft. (0.7 m) 2 ft. (0.7 m)
Ű³
5 ft. (1.6 m) 7 ft. (2.2 m) 7 ft. (2.2 m)
Ű³
7 ft. (2.2 m) 11 ft. (3.4 m) 11 ft. (3.4 m)
Ű³Ű
14 ft. (4.3 m) 19 ft. (5.8 m) 19 ft. (5.8 m)
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From outdoor unit
multi connection pip-
ing kit to outdoor unit
(in a multi system)
Actual piping length
Equivalent length
Actual piping length from the outdoor unit multi connection piping kit to the outdoor
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Equivalent piping length from the outdoor unit multi connection piping kit to the
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Outdoor unit
A
B
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Allowable
height differ-
ence
From outdoor unit to
indoor unit
Height difference
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From indoor unit to
indoor unit
Height difference
From outdoor unit to
outdoor unit
Height difference
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Allowable
length after
branch (*5)
From branch to indoor
unit via 1 Branch
Selector unit
Actual piping length
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4
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7
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From branch to indoor
unit via Branch Selec-
tor units connected in
pass through
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11
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(*4) In the case of an outdoor units multi system, “outdoor unit” should be read as the “outdoor unit multi connection piping kit”.
(*5) A multi Branch Selector unit is to be considered as a branch (a single Branch Selector unit is not), so in the case where only 1 multi Branch Se-
lector unit is included in the system, the actual piping length from each branch port of the multi Branch Selector unit to each indoor units should
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Actual piping length X Height difference between indoor units (H2)
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(165 m)
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(15 m)
:ŰHV
(120 m)
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(30 m)
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