Connecting The Refrigerant Piping - Daikin VRV II Series Design, Installation & Testing Instructions

Refrigerant Piping
6.2

Connecting the Refrigerant Piping

1. The local branch piping can be connected either forward or to the sides (taken out of the
[One outdoor unit installed: In case of RXYQ5-16MY1B]
!
!
[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.
!
!
168
bottom) as shown in the figure.
1 2 3
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.
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.
RXYQ5-16 type ( 1 ) 2
5 (1)(2)(3)
6
RXYQ18-48 type ( 1 )
3
5 (1)(2)(3)
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.Left-side connection
2.Front connection
3.Right-side connection
( 12 ) 13
7
8
3
9
4
10
11
2 ( 12 ) 13
9
10
17
11
7
3
8
4
5 (1)(3)(2)
14
6
15
11
16
9
3
14
15
5 (1)(3)
17
10
11
Installation Manual
Si39-303
9
10