Daikin VRV IV RXYQ TYDN Series - 7.5. System piping (length) limitations; 7.5.1. Piping length restrictions

EDUS341411-N Installation Manual
Installation of Outdoor Units 21
3P362438-1B
11
3P362438-1B English
INFORMATION
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r 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. 5[UVGORKRKPINGPIVJNKOKVCVKQPU
7.5.1. Piping length restrictions
Make sure to perform the piping installation within the range of the
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lowable length after branching as indicated below. 3 patterns will be
discussed, including VRV indoor units combined with Mini-split indoor
units.
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Actual piping length: pipe length between outdoor
(1)
and indoor units.
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(1)
and indoor
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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
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