SiEN34-705
Heat Pump 60Hz (RXYQ5~54P)
Installation Manual
279
(2) To avoid the risk of oil detention in the stopping unit, always connect the shutoff valve
and the piping between outdoor units as shown in the figure A or figure B.
(3) If the piping length between the outdoor units exceeds 2 m, create a rise of 200 mm or
more in the gas line under a length of 2 m from the outdoor unit multi connection piping
kit.
A
B
A
B
Front connections
Side (bottom) connections
Prohibited pattern
Oil remains in the stopping outdoor unit.
Change to pattern 1 or pattern 2
Front connections
Side (bottom) connections
to indoor unit
to indoor unit
Unit A
Unit B
Unit A
Unit B
to indoor unit
to indoor unit
to indoor unit
Oil remains in the outdoor unit B when the system stops.
Change as shown in the figure below.
Rising height:
200 mm or more
to indoor
unit
to indoor unit
to indoor unit
If less than 2m
If 2 m or more
2m or more
less than 2m
less than 2m
Outdoor unit gas pipe
Outdoor unit gas pipe
Rising height:
200 mm or more
