Pipe Selection For Dvm Plus Iv Hr - Samsung RD080HRXGB Installation Manual

installing the unit
REFRIGERANT PIPING WORKS

Pipe selection for DVM PLUS IV HR

12HP 14HP 16HP
(E)
(A1) (A1)
(A1) (A2) (A3)
(F)
(D)
•
Example) 42HP of compact
combinations
Pipe size
(O. D.mm)
HP Mark
Liquid Low
gas
12 (A1) Ø12.70 Ø25.40 Ø22.23
14 (A1) Ø12.70 Ø25.40 Ø22.23
16 (A1) Ø12.70 Ø28.58 Ø22.23
26 (A2) Ø19.05 Ø31.75 Ø28.58
42 (A3) Ø19.05 Ø38.10 Ø31.75
The sum of the total capacity of the indoor units connected to a MCU should not be over
the max. 44.8kW.
CAUTION
18_ installing the unit
Outdoor unit connection pipe size : (A1), (A2), (A3)
A1 : Select the pipes according to the outdoor
unit capacity with following table.
A2 : Select the pipes according to sum of
outdoor unit capacities behind the outdoor
joint with following table.
A3 : Select the main pipe of outdoor units with
the following table.
Pipe size (O.D. mm), (A)
Outdoor
unit
Liquid Gas
(B)
8HP
Ø9.52
10HP
12HP
14HP Ø12.70
16HP
18HP
(C)
20HP
Ø15.88
22HP
24HP
26~30HP
32~34HP Ø19.05
36~48HP
50~60HP Ø22.23 Ø44.45 Ø38.10
High
*A1 : Pipes to the outdoor unit (Liquid, Gas, High pressure gas)
gas
*A2 : Pipes between outdoor joint kits
(Liquid, Gas, High pressure gas)
*A3 : Main pipes (Liquid, Gas, High pressure gas)
Pipe size between branch joints : (B)
Select the pipe size according to the capacity sum of
indoor units which are connected below this pipe.
Total indoor unit's
capacity
15.0kW and below
Over 15.0~23.2kW and below
Over 23.2~29.0kW and below
Over 29.0~40.6kW and below
Over 40.6~46.4kW and below
Over 46.4~69.6kW and below Ø15.88
Over 69.6~98.6kW and below
Over 98.6~139.2kW and below
Over 139.2kW
Pipe size between branch joints and indoor unit : (C)
Select the pipe size according to the indoor
unit's capacity.
Indoor unit's
capacity
2.2~5.6kW
7.1~14.0kW
Oil
balancing
High
pipe size
gas
Ø19.05 Ø15.88
Ø22.23 Ø19.05
Ø25.40
Ø22.23
Ø28.58
Ø6.35
Ø25.40
Ø31.75 Ø28.58
Ø38.10 Ø31.75
Pipe size (O.D. mm)
High
Liquid Gas
gas
Ø15.88
Ø15.88
Ø9.52 Ø19.05
Ø22.23 Ø19.05
Ø25.40
Ø12.70 Ø22.23
Ø28.58
Ø25.40
Ø31.75 Ø28.58
Ø19.05
Ø38.10 Ø31.75
Ø22.23 Ø44.45 Ø38.10
Pipe size (O. D. mm)
Liquid Gas
Ø6.35 Ø12.70
Ø9.52 Ø15.88
Branch joint : (D), (E), (F)
 Branch joint of outdoor unit's multi
connection (D)
Model
Liquid & Low MXJ-T3819
gas pipe
MXJ-T4422
MXJ-T3100
High gas pipe
MXJ-T3800
 First branch joint (E)
Select branch joint according to outdoor
unit's capacity.
Outdoor unit
Liquid
8~14HP
& Low
16HP
pressure
18~24HP
gas
26~34HP
Y-joint
(E) 36~48HP
50~60HP
Outdoor unit
High
8HP
pressure
gas
10~24HP
Y-joint
26~48HP
(E)
50~60HP
 Branch joint (F)
Total indoor unit's
Model
MXJ-YA1509 15.0kW and below
Liquid
& low
MXJ-YA2512 Over 15.0~40.6kW and below
pressure
MXJ-YA2812 Over 40.6~46.4kW and below
gas
MXJ-YA2815 Over 46.4~69.6kW and below
Y-joint
(F)
MXJ-YA3119 Over 69.6~98.6kW and below
MXJ-YA3819 Over 98.6~139.2kW and below
MXJ-YA4422 Over 139.2kW
Total indoor unit's
Model
High
pressure
MXJ-YA1500 23.2kW and below
gas
MXJ-YA2500 Over 23.2~69.6kW and below
Y-joint
(F)
MXJ-YA3100 Over 69.6~139.2kW and below
MXJ-YA3800 Over 139.2kW
Capacity of
outdoor
Below 48 HP
Above 50 HP
Below 48 HP
Above 50 HP
Model
MXJ-YA2512
MXJ-YA2812
MXJ-YA2815
MXJ-YA3119
MXJ-YA3819
MXJ-YA4422
Model
MXJ-YA1500
MXJ-YA2500
MXJ-YA3100
MXJ-YA3800
capacity
capacity