LG ARUM080LTE5 Engineering Product Data Book page 681

Multi V 5
8. Capacity Correction Factor
8.5 Defrosting Correction Factor for Heating Operation
The capacity table does not consider reduction in capacity when frost has accumulated or during defrosting.
The capacity values considered these factors, in other words the integrated heating capacity values, can be
obtained as follows:
[ Formula ]
• Integrated Heating capacity = A
• Value given in table of capacity characteristics = B
• Integrated correction factor for frost accumulation = C
• A=B x C
[ Correction factor for finding integrated Heating capacity ]
Inlet Port Temperature of Heat Exchange ( ,RH 85%)
Integrated Correction Factor for Frost Accumulation
(Normal Defrost Operation)
Integrated Correction Factor for Frost Accumulation
(Partial Defrost Operation)
Integrated Correction Factor for Frost Accumulation
(Normal Defrost Operation / Dual sensing )
Integrated Correction Factor for Frost Accumulation
(Partial Defrost Operation / Dual sensing )
 Normal Defrost Operation
Normal Defrost
Heating
Capacity
 Partial Defrost Operation
Normal Defrost
Heating
Capacity
Please note that there will be temporary reduction in capacity when snow piles up on the outside surface
of the outdoor unit heat exchanger. Of course, it will be different in degree depending on a number of other
factors, for example, the outdoor temperature(°CDB), the relative humidity(RH) and the frosting amount.
674
Normal Defrost
Heating
Operation Operation
Operation
1 Cycle
Operation
Heating Operation
Partial Defrost Operation
-7 -5
0.92 0.90
0.92 0.90
0.92 0.90
0.92 0.90
1 Cycle
Outdoor Units
-3
0 3 5
0.86 0.84 0.85 0.90
0.86 0.90 0.93 0.95
0.86 0.86 0.86 0.91
0.86 0.91 0.94 0.95
Time
Normal Defrost
Operation
Time
7
1.0
1.0
1.0
1.0