Daikin RXYQ168TYDN - System Piping (Length) Limitations

11 3P362438-1B English
INFORMATION
Maximum 8 branches can be connected to a header.
• How to choose an outdoor multi connection piping kit (needed if the
outdoor unit capacity type is 192 or more). Choose from the follow-
ing table in accordance with the number of outdoor units.
Number of outdoor units Branch kit name
2 BHFP22P100U
3 BHFP22P151U
7.5. Systempiping(length)limitations
7.5.1. Piping length restrictions
Make sure to perform the piping installation within the range of the
maximum allowable pipe length, allowable height difference and al-
lowable length after branching as indicated below. 3 patterns will be
discussed, including VRV indoor units combined with Mini-split indoor
units.
Denitions
Actual piping length: pipe length between outdoor
(1)
and indoor units.
Equivalent piping length: pipe length between outdoor
(1)
and indoor
units. (Assume equivalent piping length of refnet joint = 1.6 ft. (0.5m)
and refnet header = 3.3 ft. (1 m) (for calculation purposes of equivalent
piping length, not for refrigerant charge calculations).)
Total piping length: total piping length from the outdoor
(1)
to all indoor
units.
(1) If the system capacity type is > 168, the distance will be
from the rst outdoor unit branch to indoor units.