(Kw) Heating; Indoor Units Selection; Capacity Index (Kbtu/H); A2Uw18Gfac [A2Uw18Gfac] - LG A2UW18GFAC Manual

MULTI
Outdoor Unit
4. Combination Table
The individual indoor unit capacity can be calculated as follow depending on the total connected capacity of all
indoor units.
[ Q
idu(combi)
Q
idu(combi)
Q
odu(rated)
Q
idu(rated,each)
Q
idu(rated,total)
Important
In case that the connected indoor units include high static duct type, capacity index of high static duct indoor unit
should be multiplied by 1.3 times when calculate the 'Combination Ratio'.
4.1 A2UW18GFAC
 Cooling
Combination
(Capacity index, kBtu/h)
Unit-A Unit-B Unit-C Unit-D Unit-E
1 Unit Operation
7 - -
9 - -
12 - -
2 Units Operation
7 7 -
7 9 -
9 9 -
7 12 -
9 12 -
12 12 -
Note
1. Capacities are based on the following conditions :
- Cooling : Indoor Ambient Temp. 27°CDB/19°CWB, Outdoor Ambient Temp. 35°CDB/24°CWB
- Heating : Indoor Ambient Temp. 20°CDB / 15°CWB, Outdoor Ambient Temp. 7°CDB / 6°CWB
- Interconnected piping is standard length and difference of Elevation (Outdoor ~ Indoor Unit) is 0 m.
2. At least two indoor units should be connected. And minimum limit of combination ratio is 40% approximately for rated capacity of outdoor unit.
3. Don't exceed the maximum connectable indoor units number, it can be found in Specifications or combination table of outdoor unit model.
 Heating
Combination
(Capacity index, kBtu/h)
Unit-A Unit-B Unit-C Unit-D Unit-E
1 Unit Operation
7 - -
9 - -
12 - -
2 Units Operation
7 7 -
7 9 -
9 9 -
7 12 -
9 12 -
12 12 -
Note
1. Capacities are based on the following conditions :
- Cooling : Indoor Ambient Temp. 27°CDB/19°CWB, Outdoor Ambient Temp. 35°CDB/24°CWB
- Heating : Indoor Ambient Temp. 20°CDB / 15°CWB, Outdoor Ambient Temp. 7°CDB / 6°CWB
- Interconnected piping is standard length and difference of Elevation (Outdoor ~ Indoor Unit) is 0 m.
2. At least two indoor units should be connected. And minimum limit of combination ratio is 40% approximately for rated capacity of outdoor unit.
3. Don't exceed the maximum connectable indoor units number, it can be found in Specifications or combination table of outdoor unit model.
16
] = [ Q ]X [ Q
odu(rated)
: Individual indoor unit combinational capacity
: Outdoor unit rated capacity
: Capacity of individual indoor unit
: Total sum of capacity for connected indoor units
Min
Total Btu/h
- - 7 4,200
- - 9 5,400
- - 12 7,200
- - 14 8,400
- - 16 9,600
- - 18 9,600
- - 19 9,600
- - 21 9,600
- - 24 9,600
Min
Total Btu/h
- - 7 5,040
- - 9 6,480
- - 12 7,920
- - 14 9,600
- - 16 10,800
- - 18 10,800
- - 19 10,800
- - 21 10,800
- - 24 10,800
] / [ Q
idu(rated,each)
Cooling
Total Capacity
Rated
kW Btu/h kW Btu/h
1.23 7,000 2.05 8,050
1.58 9,000 2.64 10,350
2.11 12,000 3.52 13,800
2.46 14,000 4.10 16,100
2.81 16,000 4.69 18,400
2.81 16,000 4.69 18,400
2.81 16,000 4.69 18,400
2.81 16,000 4.69 18,400
2.81 16,000 4.69 18,400
Heating
Total Capacity
Rated
kW Btu/h kW Btu/h
1.48 8,400 2.46 9,240
1.90 10,800 3.17 11,880
2.32 13,200 3.87 14,520
2.81 16,000 4.69 18,400
3.17 18,000 5.28 19,400
3.17 18,000 5.28 19,400
3.17 18,000 5.28 19,400
3.17 18,000 5.28 19,400
3.17 18,000 5.28 19,400
Multiple piping type
]
idu(rated,total)
Input (W)
Max
kW Min Rated
2.36 307 547
3.03 412 684
4.04 547 937
4.72 591 1,000
5.39 665 1,253
5.39 665 1,253
5.39 665 1,253
5.39 665 1,253
5.39 665 1,253
Input (W)
Max
kW Min Rated
2.71 355 604
3.48 454 758
4.26 554 942
5.39 613 1,068
5.69 706 1,197
5.69 706 1,197
5.69 706 1,197
5.69 706 1,197
5.69 706 1,197
Max
692
875
1,190
1,379
1,699
1,699
1,699
1,699
1,699
Max
721
920
1,155
1,451
1,650
1,650
1,650
1,650
1,650