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5CSL0-06B
3) Calculation of actual system capacity
① Outdoor unit rated capacity
Qodu(rated) [from specification table]
② Outdoor unit capacity at Ti, To temperature.
Qodu(Ti, To) [from capacity table]
③ Outdoor unit capacity coefficient factor
F(Ti, To) = Qodu(Ti, To) / Qodu(rated)
④ Piping correction factor [from capacity coefficient factor table]
Fmain (length, elevation) for main piping length or elevation
Fbranch (length, elevation) for branch piping length or elevation
⑤ Individual indoor unit combinational capacity
Qidu (combi) = Qodu(rated) x Qidu(rated) / Qidu(rated-total)
⑥ Individual indoor unit actual capacity
Qidu (actual) = Qodu(combi) x F(Ti, To) x Fmain (length, elevation) x Fbranch (length, elevation)
Example) • Outdoor unit model : AUUW126D[UU12W ULD]
• Indoor units (ATNH12GRLED[UT12 NRD]) : 3.5 kW
• Outdoor temperature : 40.0°CDB
• Indoor temperature: 19.0°CWB
• Main piping length(O/D to BD):15m
• Indoor unit actual cooling capacity in A room?
- Qodu(rated) : 3.40kW
- Qodu(Ti, To) : 3.28 kW
- F(Ti, To) : 3.28 / 3.40 = 96.47%
- Fmain (length, elevation) = 99.3%
- Qind(actual) =3.4kW x 0.9647 x 0.993 = 3.257kW
Capacity coefficient factor
Outdoor unit - DC Inverter SINGLE A (1Ø, 3Ø) 207