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9. 1
COOLING CAPACITY AND
INPUT POWER
- "STANDARD VERSIONS"
- "HEAT PUMP IN COOLING OPERA-
TION VERSIONS"
The cooling capacity yielded and the
input electrical power in conditions
other than rated conditions are obtai-
ned by multiplying the rated values
(Pf, Pa) by the respective correction
coefficients (Cft, Cpa).
The following diagrams are used to
obtain the correction coefficients to be
used for the units, in the different ver-
sions, in cooling operation; next each
curve the external air temperature to
which it refers is shown.
KEY:
Cf =
Cooling capacity correction
coefficient
Ca =
Input power correction coeffi-
cient
NOTE:
FOR THE Y VERSIONS With temperatu-
res below 4 °C contact the company
FOR ¨T DIFFERENT FROM 5°C
to the evaporator refer to Tab.9.3. 1 for
cooling capacity and input power cor-
rection factors. To account for exchan-
ger soiling, apply the relative fouling
factors.
CORRECTION FACTORS
9
1.70
1.60
1.50
1.40
1.30
(Ca)
1.20
1. 1 0
1.00
0.90
0.80
0.70
-6
-5
-4
-3
-2
-1
0
Evaporator water temperature (¨t=5°C)
1.50
1.40
1.30
(Cf)
1.20
1. 1 0
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
-6
-5
-4
-3
-2
-1
0
Evaporator water temperature (¨t=5°C)
1
2
3
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5
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9
10
11
1
2
3
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5
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