McQuay MWM09J

29
Performance Data MWM-J_(ii)
* Repeat process (a) and (b) in 1
st
step for the
condition below:
(c) Indoor Condition: 25°C DB, 19°C WB
Outdoor Condition: 35°C DB
 x
3
= 11.65kW
 y
3
= 8.94kW
 z
3
= 4.08kW
(d) Indoor Condition: 25°C DB, 19°C WB
Outdoor Condition: 40°C DB
 x
4
= 11.36kW
 y
4
= 9.03kW
 z
4
= 4.43kW
2
nd
Step:
To obtain the Total capacity, Sensible capacity and Power input for
(a) Indoor Condition: 25°C DB, 17°C WB
Outdoor Condition: 35°C DB
Indoor DB˚C Indoor WB˚C
Outdoor DB, ˚C
35
TC (kW) SHC (kW) PI (kW)
........ ........
16
25
10.91 10.60 4.00
17
...........................................
x
5
y
5
z
5
19 11.65 8.94 4.08
Total capacity, TC
Interpolation Method:

17º C – 16º C
=
x
5
– 10.91kW
19º C – 16º C 11.65kW – 10.91kW
 x
5
= 11.16kW
Sensible capacity, SHC
Interpolation Method:

17º C – 16º C
=
y
5
– 10.60kW
19º C – 16º C 8.94kW – 10.60kW
 y
5
= 10.05kW
Power Input, PI
Interpolation Method:

17º C – 16º C
=
z
5
– 4.00kW
19º C – 16º C 4.08kW – 4.00kW
 z
5
= 4.03kW