5-11
PERFORMANCE DATA & PRESSURE CURVES
SM CKDDCI 2-A.3 GB
5.5 Calculation
Example
Outdoor Unit
GC 43 DCI
Indoor Unit
DLS 43 DCI
Operation Mode
Cooling Mode
Conditions Indoor
22
CDB/15
WB
Conditions Oudoor
30
CDB
Tubing length
50m
Cooling Capacity calculation:
Total Cooling Capacity (TC) [KW] = Capacity in conditions table x F
T
Cooling Capacity in table [KW]
Tubing Length Factor (F
T
)
Corrected Capacity [KW]
11.5
0.85
TC
= 11.5x0.85=
9.775
Cooling Pressure calculation:
Pressure [KPa(g)] = Nominal Pressure (at 7.5m) x F
T
Nominal Pressure [KPa(g)]
Tubing Length Factor (F
T
)
Corrected Pressure [KPa(g)]
Discharge
2500
0.99
Pd
= 2500 x 0.99 =
2475
Suction
800
0.925
Ps
= 800 x 0.925 =
740
