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Condenser Sub-cool
Like the evaporator, the condenser is sized so that all the gas will be condensed
before the last few coils, the liquid temperature drops slightly below the condensing
temperature. In the case of an overloaded condenser or one short of refrigerant,
there will be little or no subcooling.
Ambient air
Indication
temperature (T2)
Efficient
95°F
Condenser
35°C
95°F
Low
35°C
Refrigerant
Inefficient
95°F
Compressor
35°C
Overloaded
90°F
Condenser
32°C
Non-
95°F
Condensable
35°C
Gas
This is an example of temperature indications for normal operation and various
malfunctions for typical sir conditioning unit.
C o n d e n s i n g
Vapor
Super
TD
Te m p e r a t u r e
∆T
In
Heat
( T 1 )
125°F
30°F
170°F
170°F
45°F
52°C
17°C
77°C
77°C
102°F
7°F
190°F
88°F
190°F
39°C
88°
31°C
4°C
88°C
105°F
10°F
15°F
120°F
120°F
41°C
6°C
-9°C
49°C
49°C
150°F
75°F
60°F
225°F
225°F
66°C
24°C
34°C
107°C
107°C
95°F
225°F
130°F
35°F
225°F
35°C
107°C
54°C
19°C
107°C
60
Liquid
Sub-
cool
Out
115°F
10°F
46°C
7°C
-12°C
100°F
2°F
38°C
-17°C
95°F
10°F
35°C
-12°C
145°F
5°F
63°C
-15°C
120°F
10°F
49°C
-12°C
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