Installation and Connection
CFW11W | 2-7
2.4.1.
Condensation
The condensation occurs when the incoming water temperature is excessively below the ambient temperature.
To avoid condensation the water temperature varies according to the relative humidity and ambient
temperature. The temperature at which the water vapor in the air turns into liquid as droplets is known as "dew
point".
The Table 2.3 and Table 2.4 show the dew point in relation to the air relative humidity and the ambient
temperature for an atmosphere pressure of 1 atm. If the water temperature is lower than the presented value,
condensation may occur.
Table 2.3:
Dew point in relation to the air relative humidity and the ambient temperature in ºC.
Air Relative Humidity [%]
5
10
20
30
40
50
60
70
80
90
A
m
b
ie
nt
T
em
p
er
at
ur
e [
°C
]
10
<0
<0
<0
<0
<0
0.1
2.6
4.8
6.7
8.4
20
<0
<0
<0
1.9
6.0
9.3
12.0
14.4
16.4
18.3
25
<0
<0
0.5
6.2
10.5
13.8
16.7
19.1
21.3
23.2
30
<0
<0
4.6
10.5
14.9
18.4
21.4
23.9
26.2
28.2
35
<0
<0
8.7
14.8
19.4
23.0
26.1
28.7
31.0
33.1
40
<0
2.6
12.7
19.1
23.8
27.6
30.7
33.5
35.9
38.0
45
<0
6.3
16.8
23.4
28.2
32.1
35.4
38.2
40.7
43.0
Table 2.4: Dew point in relation to the air relative humidity and the ambient temperature in ºF
Air Relative Humidity [%]
5
10
20
30
40
50
60
70
80
90
A
m
b
ien
t T
em
p
er
at
ur
e
[°
F]
50
<0
<0
<0
<0
<0
32,18 36,68 40,64 44,06 47,12
68
<0
<0
<0
35,42 42,8
48,74 53,6
57,92 61,52 64,94
77
<0
<0
32,9
43,16 50,9
56,84 62,06 66,38 70,34 73,76
86
<0
<0
40,28 50,9
58,82 65,12 70,52 75,02 79,16 82,76
95
<0
<0
47,66 58,64 66,92 73,4
78,98 83,66 87,8
91,58
104
<0
36,68 54,86 66,38 74,84 81,68 87,26 92,3
96,62 100,4
113
<0
43,34 62,24 74,12 82,76 89,78 95,72 100,8 105,3 109,4
ATTENTION
!
The water temperature must always be higher or equal to the dew point.
The values presented in Table 2.3 are based on the August-Roche-Magnus approximations, which are valid for:
Ambient temperature 0 °C to 60 °C (32 °F to 140 °F)
Air relative humidity 1 % to 100 %
Dew point 0 °C to 50 °C (32 °F to 122 ºF)
2.5.
ELECTRICAL INSTALLATION
ATTENTION
!
The water temperature must always be higher or equal to the dew point.
Summary of Contents for CFW-11W
Page 5: ...General Information CFW11W 1 2 Figure 1 2 Block Diagram of the CFW 11W...
Page 6: ...General Information CFW11W 1 3 Figure 1 3 UC 11 Main parts Figure 1 4 UP 11 Main parts...
Page 31: ...Optional Kits CFW11W 4 2...
Page 38: ...Technical Specifications CFW11W 5 7 5 3 MECHANICAL DATA Figure 5 2 UP11 dimensions mm in...
Page 41: ......
