2. Processes and functions
2-6 Condensing Temperature Control (Cooling)
2 |
Condensing temperature is controlled by the outdoor heat exchanger coil temperature as sensed by sensor C2.
| 140 |
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OUTDOOR UNIT |
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COIL TEMP. C2 |
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(°F) | 131 |
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OUTDOOR FAN | FORCED |
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SPEED | H, M or L | H, M or L | ||
H | ||||
ELECTRONIC REF. |
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CONTROL VALVE | OPEN |
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| 1926_THS_I | |
Fig. 9
Chart Explanations and notes
❑This chart shows how the outdoor fan speed and the electronic refrigerant control valve react to coil temperature to control condensing temperature.
❑Sensor C2 is located in the middle of the outdoor unit heat exchange coil.
❑When C2 rises above 140°F the electronic refrigerant control valve opens at 50 steps/30 seconds, and the outdoor fan speed is forced to change to high (H) until C2 falls below 131°F.
SM830082
II - 8
