Cool Air Prevention Control - Toshiba RAV-SM562KRT-E Service Manual

NO. Item
6 Fan speed control
7 Cool air prevention
control
Overview of specifications
COOL HEAT
HH
HH
H+ H+
H
H
L+
L+ L
L
UL UL
(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 one
minute from the time when Tc enters zone E shown in the figure in
No.7 below.
(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.
Tc
(˚C)
47
42
(1) Performs indoor unit fan control in the HEAT mode according to
the Tc (or Tcj) sensor detect temperature. The maximum speed is
limited as shown below.
Tc
(˚C)
Tcj
HH
36
H
34
L
32
UL
30
OFF
24
20
AP40-56 AP63 AP71-80
1220 1360 1480
1180 1300 1340
1140 1240 1320
1120 1200 1300
1060 1120 1200
1060 1120 1200
990 1020 1100
940 970 1040
500 500 500
HH+
HH
Shifts Tc control value by +6 °C
during defrosting. However, zone
B is regarded as zone C after 6
minutes pass from the startup of
compressor.
Zone E
Zone D
Zone C
Zone B
Zone A
– –
20
Remarks
"HEAT PREPARING"
indication
Fan speed select setting
by remote controller takes
precedence in zones D
and E.
"HEAT PREPARING" is
indicated in zones A and
B.