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Toshiba
8-4.
Outdoor unit
control
10) High temperature release control
1)To prevent excessive hi pressure rise, operation frequency is controlled by the TL sensor when cooling and by TWO
sensor when heating.
2)If the TL sensor when cooling or the TWO sensor when heating detects an abnormal stop zone temperature, the
compressor stops and the abnormality detection counter increments.
3)When the compressor stops in 2), the operation restarts when the temperature returns to the usual operation zone
("e" or below) after 150 seconds.
4)When the compressor stops in 2), the abnormality detection counter is cleared when the operation continues for 10
minutes. If the counter counts 10 times, error code is displayed and the compressor does not restart.
5)For details about an check code displayed, see the check code list.
Item Operation flow and applicable data, etc.
[°C]
Heating TC
Cooling TL
a
b
c
d
e
Abnormal stop
Frequency normal down
Frequency slow down
Frequency hold
Frequency slow up
(up to the point instructed)
As instructed
802H-E 1102H-E, 1402H-E
Heating Cooling Heating Cooling
TC (TWO+2) TL TC (TWO+2) TL
a 61°C 63°C 62°C 63°C
b 56°C 62°C 57°C 62°C
c 54°C 60°C 55°C 60°C
d 52°C 58°C 53°C 58°C
e 48°C 54°C 49°C 54°C
+00A09-002_01EN_SVM_ALL_Air_to_Water.book Page 63 Monday, October 5, 2009 2:09 PM