Samsung AM***MXWA Series - Pipe Length and Branch Size Requirements; Level Difference and Refrigerant Limits

ENGLISH-40
Refrigerant pipe installation
Note 1) Required condition
Classication Condition Example
First branch joint ~
Farthest Indoor unit
45 m ≤ b+c+d+e+f+g+p ≤ 90 m: Size of the
branch pipe (b, c, d, e, f, g) must be increased by
one grade
Total length of
extended pipe
If the size of the main pipe (pipe that connects
between the outdoor unit ~ rst branch joint) was
not increased by one grade: a+(b+c+d+e+f+g)×2
+h+i+j+k+l+m+n+p ≤ 500 m
If the size of the main pipe (pipe that connects
between the outdoor unit ~ rst branch joint) was
increased by one grade: (a+b+c+d+e+f+g)×2
+h+i+j+k+l+m+n+p ≤ 500 m
Each Y-joint ~ Each
indoor unit
h, i, j, … p ≤ 45 m
Dierence between the distance of the outdoor unit to the farthest indoor
unit and nearest indoor unit ≤ 45 m
(a+b+c+d+e+f+g+p)-(a+h) ≤ 45 m
Note 2) If an outdoor unit is located in a lower position than indoor unit, maximum level dierence is 40 m. If outdoor unit is
located in a higher position than indoor unit, level dierence is 50 m or under.
 Total refrigerant amount of the system must be less than 100 kg. If total refrigerant amount of system is
over than 100 kg, the system has to be divided into smaller system, each less than 100 kg.