Piping Installation Point; Piping Between Outside Units - Daikin RXYQ96PYDN Service Manual

Piping Installation Point

5. Piping Installation Point
5.1

Piping between Outside Units

(1) The piping between outside units must be installed level (Pattern 1) or with a rise (Pattern 2).
(2) To avoid the risk of oil detention in the stopping unit, always connect the shutoff valve and the
520
Otherwise oil may pool in the pipes.
Pattern 1
Pattern 2
Prohibited pattern
piping between outside units as shown A or B in the figure below.
A
B
Front connections
Front connections
to indoor unit
Piping between outside units
Level
Side (bottom) connections
to indoor unit
Piping between outside units
Front connections
to indoor unit
Rise
Side (bottom) connections
to indoor unit
Change to pattern 1 or pattern 2
Front connections
to indoor
unit
Downward
Downward inclination
inclination
Side (bottom) connections
to indoor unit
Downward inclination
Side (bottom) connections
Unit Unit
A B
Unit Unit
A B
Unit Unit
A B
Rise
Unit Unit
A B
Rise
Oil remains in piping
Unit Unit
A B
Unit Unit
A B
A
B
SiUS34-801A_b
Appendix