Airwell PNXA 12 DCI, Service Manual

Page: 26 / 108

5-10
S E V R U C E R U S S E R P & A T A D E C N A M R O F R E P
SM PNXADCI 1-A.1 GB
5.6.3 Heating Capacity (kW) - Run Mode
230[V] : Indoor Fan at High Speed.
ID COIL ENTERING AIR DB TEMPERATURE [
0
C]
OD COIL ENTERING
AIR DB/WB
TEMPERATURE [
0
C]
DATA 15 20 25
-15/-16
TC 2.87 2.45 2.04
PI 1.19 1.27 1.36
-10/-12
TC 3.78 3.37 2.96
PI 1.34 1.43 1.51
-7/-8
TC 4.47 4.06 3.65
PI 1.46 1.54 1.63
-1/-2
TC 4.82 4.40 3.99
PI 1.52 1.60 1.69
2/1
TC 5.05 4.63 4.22
PI 1.56
1.64
1.73
7/6
TC 6.71
6.30
5.89
PI 1.62 1.70 1.79
10/9
TC 7.06
6.65
6.24
PI 1.65 1.73 1.82
15/12
TC 7.41 7.00 6.58
PI 1.68 1.76 1.85
15-24 TC 85 - 105 % of nominal
(Protection Range) PI 80 - 120 % of nominal
LEGEND
TC – Total Heating Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., ( o C)
DB – Dry Bulb Temp., (
o
C)
ID – Indoor
OD – Outdoor
5.6.4 Capacity Correction Factors
Heating Capacity Ratio Vs. Outdoor Temperature
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
-15 -10 -5 0 5 10 15
Outdoor WB Temperature [ºC]
Ca
p
a
c
it
y
Ra
ti
o
n