System Piping (Length) Limitations; Piping Length Restrictions - Daikin RXYQ72TAYCU Manual De Instalación

• 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
2
3
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.
Definitions
Actual piping length: pipe length between outdoor
Equivalent piping length: pipe length between outdoor
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
units.
(1) If the system capacity type is > 168, the distance will be
from the first outdoor unit branch to indoor units.
11
Branch kit name
BHFP22P100U
BHFP22P151U
and indoor units.
(1)
and indoor
(1)
to all indoor
(1)
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