Daikin VRV System R-22 PLUS Series Manual page 147

Si33-102.book Page 145 Tuesday, June 26, 2001 3:18 PM
SiE33-102
2. Piping between Be sure to open the cornered knock out hole on the left panel of the sub unit when connecting the
Main Unit (RXY-)
branch piping between outdoor units.
and Sub Unit (RXE-)
Note: After brazing, pass the connection cable through the through-slots. Pass the connection cable through
the through-slots only with flange disconnected. (If the flange is still connected, the connector of the
connection cable will not pass through.)
3. Piping Limitation Make sure to perform the piping installation within the range of the maximum allowable pipe length,
allowable level difference and allowable length after branching as indicated in chapter "Example of
connection".
4. REFNET Joint For installation of the refrigerant branching kit, refer to the installation manual delivered with the kit.
Mount the REFNET joint so that it branches either horizontally or vertically.
A
Horizontal
wires
Mount the REFNET header so that it branches horizontally.
Installation Manual
Location to disconnect: the
V groove part (Sub unit)
Knock out hole
(Knock out the hole using a hammer, etc.)
RXY8,10 RXE8,10
(Main unit) (Subunit)
Liquid side
branch piping
(φ12.7)
Brazing
Gas side branch
Flange
Flare nut
piping (φ25.4)
Gas side
attached pipe
RXY16,20 RXE8,10
(Main unit) (Sub unit)
brazing
Gas side branch piping (φ25.4)
Flare nut Flange
Gas side attached pipe
Up to ± 30 or vertically.
˚
A-arrow diagram
: http://splitoff.ru/tehn-doc.html
Refrigerant Piping
(V1844)
Cable(Low voltage)
Liquid line
Insulation material
Cable (High voltage)
Gas line
Insulation material
(V1845)
Liquid side branch piping (φ12.7)
(V1846)
B
Horizontal wires
B-arrow diagram
(V1847)
145