LG MULTI V IV ARUN072BTE4 User Manual

112
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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Dual-Frame Heat Recovery Outdoor Unit Connections
REFRIGERANT PIPING DESIGN
Pipe Sizing for Heat Recovery Systems
Figure 26: Heat Recovery Dual-Frame Connections.
• 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 unit 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.
Diameters for A and B match the outdoor unit connection diameters. Main pipe D diameters are sized by LATS.
Size (tons) Model Master Slave
16
ARUB192BTE4 ARUB121BTE4 ARUB072BTE4
ARUB192DTE4 ARUB121DTE4 ARUB072DTE4
18
ARUB216BTE4 ARUB144BTE4 ARUB072BTE4
ARUB216DTE4 ARUB144DTE4 ARUB072DTE4
20
ARUB240BTE4 ARUB144BTE4 ARUB096BTE4
ARUB240DTE4 ARUB144DTE4 ARUB096DTE4
22
ARUB264BTE4 ARUB144BTE4 ARUB121BTE4
ARUB264DTE4 ARUB144DTE4 ARUB121DTE4
24
ARUB288BTE4 ARUB144BTE4 ARUB144BTE4
ARUB288DTE4 ARUB144DTE4 ARUB144DTE4
Table 38: Heat Recovery Triple-Frame Connection Pipe Sizes.
Note:
To Heat
Recovery Units
ARCNB21 Outdoor Unit
Connector Pipe Accessory
Slave
Master
A
ARCNB21
(Multi-frame Outdoor Unit
Y-branch Connector)
B
D (main pipe sized by LATS)

LG MULTI V IV ARUN072BTE4 Specifications

General

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