26
27
27
<Auto vane drive>
(a) The vane is driven by DC12V motor.
(b) Airflow direction is selected depends on the number of pulse were sent.
(c) Before start driving the auto vane, detect the standard position first, output the number of pulse to each airflow.
(d) The speed of the auto vane drive for both open and close are set at 200 pulse/sec.
(e) Method of driving the auto vane.
1
Detecting the standard position:
Output 1600 pulse to the opening direction.
2
Position setting: Output the number of pulse indicated no below chart to the closing direction.
(4) Detecting abnormalities in the outdoor unit
After the compressor has been continuously operated for 3 minutes, if the difference between the pipe temperature and
room temperature is out of RANGE C for 1 minute, the indoor fan speed will turn to LOW. Five minutes later, if the differ-
ence is still out of RANGE C, the outdoor unit is functioning abnormally. Thus, the compressor stops and check code “P8”
appears on remote controller.
RANGE A : Pipe temperature is more than 5 degrees above room temperature.
RANGE B : Pipe temperature is within 5 degrees either way of room temperature.
RANGE C : Pipe temperature is more than 5 degrees below room temperature.
Close
Horizontal
Downward A
Downward B
1,600
The number of pulse output after
detecting the standard position
697
570
465
Downward C
362
Pipe temperature
minus room temperature
+5
0
-5
RANGE A
RANGE B
RANGE C
(degree)
OC231A
