Fujitsu ASYA07LBCM - Page 21

01-18
4. COOLING PRESSURE OVER RISE PROTECTION
When the outdoor unit heat exchange sensor temperature rises to 67°C or greater,
the compressor is stopped and error display is indicated.
Th : Outdoor heat exchange temperature
Te : Indoor heat exchange temperature
5. HIGH TEMPERATURE RELEASE CONTROL ( HEATING MODE )
On heating mode, the compressor frequency is controlled as following based on the
detection value of the indoor and outdoor heat exchanger temperature sensor.
(Fig 14 : Heating Overload Protection Control)
Te : 63°C
Compressor is OFF
The compressor rotation is
decreased 6 rps every 60 seconds.
Hold
*1
Th> -9°C ---> Te : 54°C
-9°C>Th>-11°C ---> Te : 54°C
-11°C>Th>-13°C ---> Te : 52°C
-13°C>Th>-15°C ---> Te : 50°C
-15°C>Th ---> Te : 48°C
*1
Te : 54°C 48°C
*2
Te : 50°C 44°C
=
=
=
=
*2
Th> -9°C ---> Te : 50°C
-9°C>Th>-11°C ---> Te : 50°C
-11°C>Th>-13°C ---> Te : 48°C
-13°C>Th>-15°C ---> Te : 46°C
-15°C>Th ---> Te : 44°C
=
=
=
=
Release of protection