Samsung DVM S VRF - Branch Joint and Distribution Header Selection

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10. Installation
Refrigerant pipe installation
 Branch joint (E)
Select a branch joint according to the sum of indoor unit capacity which will be connected after the branch.
 However, if the size of the pipe between branch joints (E) is bigger than the size of the pipe connected to the
outdoor unit (D), apply the pipe size (D).
1) Y-joint
Classification Model name Specification (kW)
Y-joint (E)
MXJ-YA1509M 15.0kW and below
MXJ-YA2512M Over 15.0kW ~ 40.0kW and below
MXJ-YA2812M Over 40.0kW ~ 45.0kW and below
MXJ-YA2815M Over 45.0kW ~ 70.3kW and below
MXJ-YA3419M Over 70.3kW ~ 98.4kW and below
MXJ-YA4119M Over 98.4kW ~ 135.2kW and below
MXJ-YA4422M Over 135.2kW
2) Distribution header
Classification Model name Specification (kW)
Distribution header (E)
MXJ-HA2512M 45.0kW and below (for 4 rooms)
MXJ-HA3115M 70.3kW and below (for 8 rooms)
MXJ-HA3819M
Over 70.3kW ~ 135.2kW and below
(for 8 rooms)