To Select The Piping Size - Daikin CO2 Conveni-pack LRYEN10A7Y1 Installer And User Reference Manual

16.1.4 To select the piping size

LRYEN10A7Y1+LRNUN5A7Y1
CO₂ Conveni-Pack outdoor unit
4P605460-1 – 2020.08
c
b
a Showcase
b Height difference=5 m
c Trap
The refrigerant suction piping must always run down:
a Outdoor unit or indoor unit
b Flow direction in refrigerant suction piping
To install riser piping
If the outdoor unit is installed lower than the indoor unit, install the riser piping
close to the indoor unit. When the compressor of the outdoor unit starts, a correct
installed riser piping will prevent liquid from flowing back to the outdoor unit.
b
a Outdoor unit
b Indoor unit
c Riser piping up to indoor unit.
Determine the proper size using the following tables and reference figure (only for
indication).
a
a
b
a
b
a
16 Piping installation
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Installer and user reference guide
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