Toshiba RAV-GV1101AT8P-TR Service Manual page 38

4-2. Heating fan control
1) An outdoor fan is controlled by TE sensor, TO sensor and compressor frequency. (It is controlled with W1
for minimum and the maximum is controlled according to the following table.)
2) At the start time, the fan is fixed for 3 minutes only with the maximum fan tap corresponded to the zone
in the following table but it is controlled with TE sensor temperature after then.
3) When a status TE ≥ 24°C continues for 5 minutes, the operation stops. In this case, no error display
appears and the status is same as the normal thermo-OFF. The can restarts after approx. 2 minutes 30
seconds and this continuous operation is not an error.
4) When the above status as 3) occurs frequently, it is considered that filter of the suction part of the indoor
unit is dirty. Clean the filter and restart the operation.
– 2 tap / 20 seconds (up to W1)
TE
Stop timer count
24˚C
– 2 tap / 20 seconds (up to W1)
21˚C
– 1 tap / 20 seconds (up to W1)
18˚C
Rotational frequency hold
15˚C
+
1 tap / 20 seconds
(up to Max. tap of each zone)
5. Coil heating control
This control has the function of heating the compressor by applying a current to the compressor when not
1)
operating instead using a case heater.
This control is for the purpose of preventing stagnation of the refrigerant inside the compressor.
Malfunction in the compressor may result if a current is not applied for a specified time before a test run
2)
after installation as was previously the case.
Similarly, starting operation after turning the power OFF and not operating for a long time also requires
application of a current before starting operation, in the same manner as the test run.
Application of current is determined by TD and TO sensors.
3)
When the TO sensor has a trouble, a backup control is automatically performed by the TE sensor.
When TO sensor has a trouble, make a determination using the LED display of the outdoor interface
board.
Temp.
range
10°C ≤ TO
5°C ≤ TO < 10°C
-3°C ≤ TO < 5°C
-10°C ≤ TO < -3°C
TO < –10°C
TO error
-1
• Power-ON
condition
-2
TD<30˚C
-3
• Power-ON
condition
TD < 30˚C
-1
GV110, 140
Output power 50W
GV110
20.4 Hz or lower 20.4Hz to 45.0Hz 45.0Hz or higher
GV140
Max.
W7
W9
WE
WE
WE
WE
( N r o m l a i t
TO
0 ˚C
No power
˚C
Intermittent power-ON
10 minutes: ON /
˚C 5 minutes: OFF
˚C
Continuous power-ON
(When TO sensor trouble)
TE
2 ˚C
No power
1 ˚C
Intermittent power-ON
10 minutes: ON /
0 ˚C 5 minutes: OFF
˚C
Continuous power-ON
- 38 -
Max.
W8
WB
WE
WE
WE
WE
m ) e
Max.
W9
WE
WE
WE
WE
WE