Daikin RXYQ72TTJU Installation Manual

Also see for RXYQ120TTJU: Operation manual Engineering data

Contents

Daikin RXYQ72TTJU Installation Manual Manual pdf 14 page image

113P362438-1B E nglishINFORMATIONMaximum 8 branches can be connected to a header.• How to choose an outdoor multi connection piping kit (needed if theoutdoor 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 name2 BHFP22P100U3 BHFP22P151U7 5 System piping (length) limitations7 5 1 Piping length restrictionsMake sure to perform the piping installation within the range of themaximum allowable pipe length, allowable height difference and al-lowable length after branching as indicated below. 3 patterns will bediscussed, including VRV indoor units combined with Mini-split indoorunits.DefinitionsActual piping length: pipe length between outdoor (1) and indoor units.Equivalent piping length: pipe length between outdoor(1) and indoorunits. (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 equivalentpiping length, not for refrigerant charge calculations).)Total piping length: total piping length from the outdoor (1) to all indoorunits.(1) If the system capacity type is > 168, the distance will befrom the first outdoor unit branch to indoor units.