Samsung mini DVM Series Service Manual page 409

Operating Instructions and Installation
Allowable Length of the Refrigerant Pipe and the Installation Examples (cont.)
Outdoor unit~
Maximum
Indoor unit
allowable
length of
pipe
Outdoor unit~
Outdoor unit
(16HP ≤ )
Outdoor unit~
Indoor unit
Maximum
allowable
Indoor unit~
height
Indoor unit
Outdoor unit~
Outdoor unit
Maximum allowable length
after the first branch pipe
• Select the first Y-joint depending on the outdoor unit capacity.
Select the first Y-joint depending on the outdoor unit capacity.
Select the other Y-joints and branch joints depending on the total capacity of attached indoor units below the selected joint
individually.
Selecting the first Y-joint
Outdoor capacity(HP)
8,10 MXJ-YA2212A
12,14 MXJ-YA2512A
16,18,20,22,24 MXJ-YA2815A
26,28,30,32,34 MXJ-YA3119A
36,38,40,42,
MXJ-YA3819A
44,46,48
Outdoor joint
Outdoor capacity(HP) Outdoor joint model
16~48 MXJ-T3819A
11-28
Using only Y-joint
The distance between the outdoor unit and the furthest indoor unit ≤ 170m
Actual
Ex)Indoor unit 8 :
length
a+b+c+d+e+f+g+p ≤ 170m
The distance between the outdoor and the furthest indoor unit ≤ 190m
Equivalent
length
(The equivalent length of Y-joint :0.5m,The equivalent length of branch joint :1m)
Total
The total distance from the outdoor unit to all indoor units ≤ 300m
length
The distance between the outdoor joint and the outdoor unit ≤ 10m,
Actual
Equivalent length ≤ 13m
length
H1:Difference of height between the outdoor unit and
indoor unit → <50m,
Height
When the outdoor unit is lower → <40m
H2:Difference of height among the indoor units → ≤ 15m
Height
H3:Difference of height among the outdoor units → ≤ 5m
Height
The distance between the first Y-joint and the indoor unit ≤ 45m
Ex)Indoor unit 8 : b+c+d+e+f+g+p ≤ 45m/
Actual
Indoor unit 6 : b+h ≤ 45m/Indoor unit 8 : i ≤ 45m
length
The distance between the EEV kit and indoor unit ≤ 20m
Y-joint model
Total capacity of
attached indoor units
below this Y-joint (kW)
X < 22.4
22.4 ≤ X < 33.0
33.0 ≤ X < 47.0
47.0 ≤ X < 71.0
71.0 ≤ X < 104.0
104.0 ≤ X
Using Y-joint and branch joint
Ex)Indoor unit 6:a+b+h ≤ 170m
The other Y-joint
Y-joint model
MXJ-YA1509A
MXJ-YA2212A
MXJ-YA2512A
MXJ-YA2815A
MXJ-YA3119A
MXJ-YA3819A
Using only branch joint
Ex)Indoor unit 8:a+i ≤ 170m
r≤10m(Equivalent length≤13m)
s≤10m(Equivalent length≤13m)
t≤10m(Equivalent length≤13m)
Branch joint
Total capacity of attached
indoor units below this Branch joint model
branch joint (kW)
Connection of below
X < 47.0 MXJ-HA2512A
4 units of indoor unit
Connection of 5 to
X <71.0 MXJ-HA3115A
8 units of indoor unit
71.0 ≤ X
MXJ-HA3819A
Samsung Electronics