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54 Multi Air Conditioner
Max Combination Capacity
Max Combination Capacity
Multi Piping Type
Capacity
(Btu/h class)
Max Room No.
Combination Indoor Capacity
(Btu/h class)
Max Combination Capacity
(Btu/h class)
18k 2 7,9,12,15k 24k
24k 3 7,9,12,15,18,24k 33k
30k 4 7,9,12,15,18,24k 40k
Distributor Type
Capacity
(Btu/h class)
Max Room No.
Combination Indoor Capacity (Btu/h
class)
Max Combination Capacity
(Btu/h class)
36k 5 7,9,12,15,18,24k 48k
42k 6 7,9,12,15,18,24,36k 56k
The combination of indoor unit is to be decided that the sum of indoor unit capacity index must be
smaller than the maximum combination capacity of outdoor unit. We recommend to calculate indoor
unit capacity like below.
If you do not follow our recommendation, it will have some problems in low ambient condition i.e.
some indoor unit will not be able to heat very well in heating mode.
CALCULATION METHOD FOR THE CONNECTABLE TOTAL CAPACITY OF INDOOR UNIT
Sum up the capacity of all indoor unit, but high static duct and VAHU type indoor unit capacity
multiplier 1.2 times in which multiplier is unless only HSD/VAHU are connected
Ex) 1. Outdoor unit : A6UW42GFH0[LMU420HHV](connectable maximum capacity is 56kBtu/h class)
Indoor unit:
AMNW24GBGA0[LMHN240HV], AMNW36GBGA0[LMHN360HV]
(24+36) x 1.2 = 60 x 1.2 = 72kBtu/h class : This combination is not acceptable.
2. Out door unit: A6UW42GFH0[LMU420HHV](connetable maximum capacity is 56kBtu/h class)
Indoor unit:
AMNW24GBGA0[LMNH240HV], AMNW24GDCB0[LMN248HVT]
(24 x 1.2) + 24 =52.8kBtu/h class : This combination is acceptable.
3. Outdoor unit : A6UW42GFH0[LMU420HHV](connectable maximum capacity is 56kBtu/h class)
Indoor unit:
AMNW36GBGA0[LMNH360HV], AMNW07GDBB0[LMN078HVT]
(36 x 1.2) + 7 =50.2kBtu/h class : This combination is acceptable.