LG MULTI V IV ARUN072BTE4 User Manual

106
MULTI V IV System Installation Manual
Due to our policy of continuous product innovation, some specications may change without notication.
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Triple-Frame Heat Pump Outdoor Unit Connections
Pipe Sizing for Heat Pump Units
REFRIGERANT PIPING DESIGN
Table 33: Heat Pump Triple-Frame Connection Pipe Sizes.
Size (tons) Model Master Slave1 Slave2
B
Liquid Vapor
26
ARUN312BTE4 ARUN144BTE4 ARUN096BTE4 ARUN072BTE4
5/8" 1-1/8"
ARUN312DTE4 ARUN144DTE4 ARUN096DTE4 ARUN072DTE4
28
ARUN336BTE4 ARUN144BTE4 ARUN096DTE4 ARUN096BTE4
5/8" 1-1/8"
ARUN336DTE4 ARUN144DTE4 ARUN096DTE4 ARUN096DTE4
30
ARUN360BTE4 ARUN144BTE4 ARUN121BTE4 ARUN096BTE4
5/8" 1-1/8"
ARUN360DTE4 ARUN144DTE4 ARUN121DTE4 ARUN096DTE4
• Larger-capacity outdoor units must be the master in a multi-frame system.
• Single-compressor outdoor units (72,000 Btu/h capacity) cannot be the master outdoor units in a multi-frame system.
• Master outdoor unit capacity must be greater than or equal to the slave1 outdoor unit capacity, and, where applicable, slave1 outdoor
unit capacity must be greater than or equal to the slave2 outdoor unit capacity.
• Insulate all refrigerant system piping and piping connections as detailed on pages 131-132.
• Common pipe no longer required between frames.
Figure 25: Heat Pump Triple-Frame Connections.
Note:
A1, A2, and A3 diameters match the outdoor unit connection diameters. Main pipe D diameters are sized by LATS. See
the table below for B, C1, and C2 diameters.
ARCNN21 and ARCNN31
Outdoor Unit Connector
Pipe Accessories
To Indoor Units
Slave2
Master
Slave1
A1
A2
ARCNN21
(Multi-frame Outdoor Unit
Y-branch Connector)
B
A3
D (main pipe
sized by LATS)
ARCNN31
(Multi-frame Outdoor Unit
Y-branch Connector)

LG MULTI V IV ARUN072BTE4 Specifications

General

Brand	LG
Model	MULTI V IV ARUN072BTE4
Category	Air Conditioner
Language	English