37
Selecting refrigerant pipe
First branch joint
Increase the main
pipe size
Install the refrigerant pipe according to main pipe size of each outdoor unit capacity.
When the pipe length (including elbow) between an outdoor unit and the farthest indoor unit exceeds 90m, you
must increase the size of the pipe (main pipe) by one grade which connects between the outdoor unit to the rst
branch joint.
For H/R model, When the pipe length (including elbow) between an outdoor unit and the farthest indoor unit
exceeds 90m, you must increase the size of the liquid pipe by one grade among the pipes(main pipe) which
connects between the outdoor unit to the rst branch joint.
DVM S HE_IM_DB68-05461A-08_EN.indd 37 2017-03-24 오후 1:38:20
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