Samsung DVM S ECO AM XMDG Series - Allowable refrigerant pipe length and examples

AA
28

Connection by Y-joint
Outdoor unit

Connection by Y-joint / EEV kit
Outdoor unit
Allowable length of the refrigerant pipe and the installation examples
Classication Y joint connection Y-joint / EEV kit connection
Maximum
allowable
length of
pipe
Outdoor unit
~ Indoor unit
Actual length
The distance between the outdoor unit and the farthest indoor unit ≤ 100m
Ex) 8 indoor units
a+b+c+d+e+f+g+p ≤ 100m
Ex) 6 indoor units
a+b+c+d+j ≤ 100m
Equivalent length The distance between an outdoor unit and the farthest indoor unit ≤ 130m
Main pipe length The main pipe(a) from the the outdoor unit to the rst Y joint < 80m.
Total length: The sum of the total length of the pipes < 300m.
Maximum
allowable
height
Outdoor unit
~ Indoor unit
Height H1: The difference of height between an outdoor unit and indoor unit < 30m;
Height
H2: The difference of height between indoor units ≤30m
But,when RAC EEV is installed, H2 is 15m or less.
Maximum allowable
length after Y joint
Actual length
The distance between the rst Y-joint
and the farthest indoor unit ≤ 40m;
Ex) 8 indoor units
b+c+d+e+f+g+p ≤ 40m
Allowable length between EEV kit and an
indoor unit ≤ 20m;
Ex) : h, i, j ≤ 20m

When the equivalent length between an outdoor unit and the farthest indoor unit exceeds 90m,upgrade the low pressure
pipe of the main pipe one step.
Installation of Air-conditioner