Daikin REYQ144TYDN - 8. Precautions on refrigerant piping; 8.1. Caution for brazing; 8.2. Connecting the refrigerant piping

11 3P362438-3H English
7.5. Systempiping(length)limitations
<Exampleofrefrigerantpiping(8indoorunitsareconnected)>
A
B
C
E
B-1 B-2 B-3
1 2
4 5 6 7
8
3
D
a
b c
d
e f
g
h
i
j
k
m
n
o
p
H1
H3
H2
t
r
: Indoor unit (cooling/heating
selectable)
: BS unit (Multi BS)
: BS unit (Single BS)
B1
B3B2
-
1 7
: Indoor unit (cooling only)
(Note 4)
8
REFNET joint (A-E)
,
Outdoor unit
Outdoor unit
First outdoor unit
multi connection
piping kit (*1)
(*1) “ ” represents an outdoor unit multi connection piping kit.
The outdoor unit multi connection piping kit must always be installed horizontally, paying attention to the installation restrictions indicated in
“8.Precautions on refrigerant piping”.
<Exampleofconnection(8indoorunitsareconnected)>
Outdoor unit
side
Indoor unit
side
BS unit
(1) (2)
(1)PipingfromtheoutdoorunittotheBSunit
Suction gas pipe
High/Low pressure gas pipe
Liquid pipe
(3 lines): 3 pipes
(2)PipingfromtheBSunittotheindoorunit,andfromtherefrigerantbranchkittothecooling-onlyindoorunit(Note1)
(2 lines): 2 pipes
(Suction) gas pipe
Liquid pipe
Note 1: The 2-line gas pipe that is branched from the 3-line pipe and goes to the cooling-only indoor unit should be connected to the suction gas
pipe.
01_EN_3P362438-3H.indb 11 1/14/2015 10:19:33 AM