Note - LG A2UW18GFAC Manual

MULTI
Outdoor Unit
4. Indoor Unit and Outdoor Unit Capacity Index
4.1 Selection procedure
■ Outdoor units selection
In general, outdoor unit may be selected as follows, though the location of the unit, and usage of the room, etc.
should be considered.
The combination of indoor and outdoor unit was to be decided that the sum of indoor unit capacity index should
be smaller than the max. combination capacity of outdoor unit. Up to Max.9 indoor units can be connected to one
outdoor unit. It is recommended to choose a large capacity outdoor unit if the installation space is large enough.
 MULTI Inverter (1 phase)
Nominal Capacity(kW)
Global model name
Cooling
Rated capacity
(kW)
Heating
Number of indoor units
Connectable
indoor units
Maximum Total Capacity Index (kBtu/h)
Nominal Capacity(kW)
Global model name
Cooling
Rated capacity
(kW)
Heating
Number of indoor units
Connectable
indoor units
Maximum Total Capacity Index (kBtu/h)
■ Indoor units selection
Look up the table on combination of indoor and outdoor unit, and determine the appropriate indoor unit capacity
which satisfies the given thermal load.
For proper system operation, refer to the following:
1. At least 2 indoor units should be connected to outdoor unit.
2. Total capacity of indoor units connected should be minimum 40% of outdoor unit rated capacity.
3. Calculation method for the connectable total capacity of indoor unit sum up the capacity of indoor unit, but high
static duct type indoor unit capacity weights 1.3 times.
Indoor Unit
Model Name
Capacity Index
(kBtu/h)

Note

All product data are based on buyer model name.
-07G- -09G-
7 9
4.7
A2UW18GFAC A3UW21GFAC
[A2UW18GFAC] [A3UW21GFAC]
4.69
5.28
Max. 2 Units Max. 3 Units
24
7.9
A4UW30GFA2 A5UW36GFA2
[A4UW30GFA2] [A5UW36GFA2]
7.91
9.09
Max. 4 Units Max. 5 Units
51
-12G-
12
General information
6.2 7.0
A3UW24GFA3
[A3UW24GFA3]
7.03
6.15
7.91
6.15
Max. 3 Units
36
30
10.3 14.0
A5UW48GFA1
[A5UW48GFA1]
10.26 14.01
10.55 14.65
Max. 5 Units
54 72
-18G- -24G-
18 24
5