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Piping installation
Installer and user reference guide
90
REMA5+REYA8~20A7Y1B
VRV 5 heat recovery
4P687640-1 – 2022.07
a
b
b
a
b
b
a
b
a
b
a
b
a
a
a
≥200 mm
a
To indoor unit
b
Oil collects to the outmost outdoor unit when the system stops
NOT allowed (oil remains in piping)
Allowed
▪
If the piping length between the outdoor units exceeds 2 m, create a rise of
200 mm or more in the suction gas line and the high pressure/low pressure gas
line within a length of 2 m from the kit.
If
Then
≤2 m
a
b
≤2 m
>2 m
a
≤2 m
≥200 mm
b
>2 m
a
To indoor unit
b
Piping between outdoor units
