95
24.2.2. Pressure (PSI)
580
507
435
3
62
290
217
55
65
75
Outdoor
t
57F (13.89) 47F (8.33) 37F (2.78) 27F 17F
(-2.78) (-8.33)
24.3. Capacity Request Calculations
Total capacity Request=Σ(Norm code × HP) /10× modify rate+ correction.
T1 Ts
3
1
1
e
c
a
4
2
0
2
3
0
1
f
d
b
Figure 38. Cooling Mode
Capacity Area
a
b
c
d
e
f
Norm Code (N)
3
2
1.5
1
.5
0
Model
9K
12K
18K
HP
1.0
1.2
1.5
NOTE:
The final result is integer.
Plus all the indoor capacity request together, then modify it by T4.
When there is only one indoor unit:
Outdoor Temperature (T4)
Cooling
>29°C
18°C to 29°C
<17°C
>84.2°F
64.4°F to 84.2°F
<62.6°F
Modify Rate
100%
60%
40%
