Filter
Top Products
II - 8
SM830082
1
2
3
4
Section
5
2. Processes and functions
Fig. 9
2-6 Condensing Temperature Control (Cooling)
Condensing temperature is controlled by the outdoor heat exchanger coil temperature as
sensed by sensor C2.
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.
140
131
OUTDOOR UNIT
COIL TEMP. C2
(°F)
OUTDOOR FAN
SPEED
ELECTRONIC REF.
CONTROL VALVE
H, M or L H, M or L
FORCED
H
1926_THS_
I
OPEN