LG RM2U15.U18 - 2.9 Capacity Correction Factor

2.9 Capacity Correction Factor
2.9.1 Cooling
Combination
(Capacity ind
ex, kBtu/h)
Capacity correction factor (%) by equivalent pipe length (m)
5 7.5 10 15 20 25
9 100.0 100.0 98.0 94.8 91.6 88.4
12 100.0 100.0 97.6 93.8 89.9 86.1
Multi Multiple type
2. S33W18U2GA0.EC6BEEU [RM3U19.U24]
Product Data
2.9.2 Heating
Combination
(Capacity ind
ex, kBtu/h)
Capacity correction factor (%) by equivalent pipe length (m)
5 7.5 10 15 20 25
9 100.0 100.0 99.0 97.4 95.8 94.2
12 100.0 100.0 98.6 96.4 94.1 91.9
Note
■
Q
odu(rated)
[from specification table] : Outdoor unit rated capacity.
■ Q
odu(Ti, To)
[from capacity table] : Outdoor unit capacity at Ti, To temperature.
■ F
(Ti, To)
= Q
odu(Ti, To)
/ Q
odu(rated)
: Outdoor unit capacity correction factor.
■ Piping correction factor [from capacity correction factor table]
- F
main (length, elevation)
for main piping length or elevation : F
main (length, elevation)
is used only when the BD (Distributor Box) unit is connected.
- F
branch (length, elevation)
for branch piping length or elevation
■ Individual indoor unit combinational capacity
- Q
idu (combi)
= Q
odu(rated)
x Q
idu(rated,each)
/ Q
idu(rated,total)
: Q
idu(rated,each)
is Capacity of individual indoor unit
: Q
idu(rated,total)
is Total sum of individual capacity for connected indoor units
Refer to the ‘Specifications’ of each indoor units
• Individual indoor unit actual capacity
- Q
idu (actual)
= Q
idu(combi)
x F
(Ti, To)
x F
main (length, elevation)
x F
branch (length, elevation)
: F
main (length, elevation)
is used only when the BD (Distributor Box) unit is connected.