Daikin VRV II Series, Design, Installation & Testing Instructions, Page: 174 / 242

Refrigerant Piping Si39-303
168 Installation Manual
6.2 Connecting the Refrigerant Piping
1. The local branch piping can be connected either forward or to the sides (taken out of the
bottom) as shown in the figure.
1.Left-side connection
2.Front connection
3.Right-side connection
[One outdoor unit installed: In case of RXYQ5-16MY1B]
!
Front connection:
Remove the shutoff valve cover to connect.
!
Side (bottom) connection:
Remove the knock holes on the bottom frame and route the piping under the bottom frame.
[When multiple outdoor units installed: In case of RXYQ18-48MY1B]
To connect the piping between outdoor units, an optional piping kit (multi connection piping kit)
is always required. When installing the piping, follow the instructions in the installation manual
that comes with the kit.
!
Front connection:
Remove the shutoff valve cover to connect.
!
Side (bottom) connection:
Remove the knock holes on the bottom frame and route the piping under the bottom frame.
1.Front connection:
2.Remove the shutoff valve cover to connect.
3.Flange:
4.(or flare nut in case of models Q5 type)
5.Gas side accessory pipe (1) (2) (3)
6.(In case of Q5 type, field supply.)
7.Oil-equalizing piping shutoff valve (Except Q5)
8.No piping work is needed.
9.Flare nut
10.Brazing
11.Liquid side piping (field supply)
12.Side (bottom) connection:
13.Remove the knock holes on the bottom frame and route the piping under the bottom
frame.
14.Knockout hole
15.Punch the knock holes.
16.Liquid side piping (field supply)
17.Oil-equalizing piping (field supply)
1 2 3
( 1 ) 2
( 1 ) RXYQ18-48 type
RXYQ5-16 type
2
7
8
3
4
5 (1)(3)(2)
6
11
16
9
10
11
3
3
3
10
11
9
10
17
11
4
5 (1)(2)(3)
5 (1)(3)
5 (1)(2)(3)
6
( 12 ) 13
( 12 ) 13
7
8
9
9
14
15
17
14
15
10