Specifications

57
Performance Data MVCU-2009
2
nd
Step:
To obtain the Total capacity and Sensible capacity for
(a) Indoor Condition: 23°C DB, 15°C WB
Outdoor Condition: 35°C DB
Indoor DB˚C Indoor WB˚C
Outdoor DB, ˚C
35
TC (kW) SC (kW)
........ ........
20 15 5.970 3.666
23 15
...........................................
x
3
y
3
24 15 5.970 4.723
Total capacity, TC
⇒ x
3
= 5.970kW (Same as Total capacity at 20°C Indoor DB / 15°C Indoor WB & 35°C Outdoor WB)*
Sensible capacity, SC
Extrapolation Method:
⇒
24º C – 20º C
=
4.723kW – 3.666kW
24º C – 23º C 4.723kW – y
3
⇒ y
3
= 4.459kW
(b) Indoor Condition: 23°C DB, 15°C WB
Outdoor Condition: 40°C DB
Indoor DB˚C Indoor WB˚C
Outdoor DB, ˚C
40
TC (kW) SC (kW)
........ ........
20 15 5.610 3.376
23 15
...........................................
x
4
y
4
24 15 5.610 4.433
Total capacity, TC
⇒ x
4
= 5.610kW (Same as Total capacity at 20°C Indoor DB / 15°C Indoor WB & 40°C Outdoor WB)*
Sensible capacity, SC
Extrapolation Method:
⇒
24º C – 20º C
=
4.433kW – 3.376kW
24º C – 23º C 4.433kW – y
1
⇒ y
4
= 4.169kW
* This is due to 2 different conditions with same WB temperature, will have the same level of enthalpy. For more
details, please refer to psychrometrics chart
08_Performance Data.indd 5708_Performance Data.indd 57 4/28/2009 11:21:54 AM4/28/2009 11:21:54 AM