Specifications

56
MVCU-2009 Performance Data
Details:
1
st
Step:
To obtain the Total capacity and Sensible capacity for
(a) Indoor Condition: 24°C DB, 15°C WB
Outdoor Condition: 35°C DB
Indoor DB˚C Indoor WB˚C
Outdoor DB, ˚C
35
TC (kW) SC (kW)
........ ........
24
15
...........................................
x
1
y
1
16 6.211 4.475
17 6.452 4.227
Total capacity, TC
⇒ x
1
= 5.970kW (Same as Total capacity at 20°C Indoor DB / 15°C Indoor WB & 35°C Outdoor WB)*
Sensible capacity, SC
Extrapolation Method:
⇒
17º C – 15º C
=
4.227kW – y
1
17º C – 16º C 4.227kW – 4.475kW
⇒ y
1
= 4.723kW
(b) Indoor Condition: 24°C DB, 15°C WB
Outdoor Condition: 40°C DB
Indoor DB˚C Indoor WB˚C
Outdoor DB, ˚C
40
TC (kW) SC (kW)
........ ........
24
15
...........................................
x
2
y
2
16 5.818 4.216
17 6.027 3.999
Total capacity, TC
⇒ x
2
= 5.610kW (Same as Total capacity at 20°C Indoor DB / 15°C Indoor WB & 40°C Outdoor WB)*
Sensible capacity, SC
Extrapolation Method:
⇒
17º C – 15º C
=
3.999kW – y
2
17º C – 16º C 3.999kW – 4.216kW
⇒ y
2
= 4.433kW
* 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 5608_Performance Data.indd 56 4/28/2009 11:21:53 AM4/28/2009 11:21:53 AM