Toshiba RAV-GM301ATP-E, Service Manual

Page: 31 / 113

No.
6
Item
Fan speed control
(Continued)
Outline of specifications Remarks
“PRE-HEAT ”
indication
7 Cool air discharge
preventive control
1) In heating operation, the indoor fan is controlled based on
the detected temperature of Tc sensor or Tcj sensor. As
shown below, the upper limit of the revolution frequency is
restricted.
However B zone is assumed as C zone for
6 minutes and after when the compressor activated.
In defrost operation, the control value of Tc or Tcj is shifted
by 6°C.
In D and E zones, the
priority is given to air
volume selection
setup of remote
controller.
Tc, Tcj
˚C
32
30
28
26
20
16
HH
H
L
UL
OFF
E zone
D zone
C zone
B zone
A zone
Ta
˚C
HH
HH+
α
47
42
3) When thermo sensor turns OFF during heating, the fan
speed mode becomes UL ( weak).
4) When Ta is 25°C or above at the beginning of HEAT
operation or when canceling defrost mode, H or HH mode
continues for 1 minute from the time when Tc enters zone
E. (Following figure.)
5) The HH fan speed for auto cooling/heating is set to a
speed higher than that for normal cooling/heating.
However, it varies depending on the temperature difference
of Tc during auto heating.
Fan speed [rpm]
COOL HEAT RM301 RM401 RM561 RM801
HH 1040 1080 1020 1080
HH 1040 1080 1020 1080
H+ H+ 950 1000 960 1020
H+ 890 950 920 980
H 870 920 920 980
L+ 830 870 860 860
L+ L 780 800 830 830
L+ 740 760 800 800
UL UL 500 500 500 500
FILE NO. SVM-18059
- 31 -