Toshiba MMK-AP0074MHP-E1 Service Manual page 19

No. Item
6 Prevention of (1) In heating operation, the upper limit of the fan tap is set by
cold air
discharge
7 Freeze preven- (1) In cooling operation, the air conditioner operates as de-
tion control
(Low temp.
release)
(˚C)
(2) In cooling operation, the air conditioner operates as
Outline of specifications
one with higher temperature of TC2 sensor and TCJ sensor.
• When B zone has continued for 6 minutes, the operation
shifts to C zone.
• In defrost time, the control point is set to +6°C.
(˚C)
36
D
34
C E
32
30
24
B
20
A
scribed below based upon temp. detected by TC1, TC2 and
TCJ sensors.
To prevent the heat exchanger from freezing, the operation
stops.
• When "J" zone is detected for 5 minutes, the forced
thermo is OFF.
• In "K" zone, the timer count is interrupted, and held.
• When "1 " zone is detected, the timer is cleared and the
operation returns to the normal operation.
• When the forced thermo-OFF became S0 with continua-
tion of "J" zone, operation of the the indoor fan in LOW (L)
mode until it reaches the "1 " zone.
It is reset when the following conditions are satisfied.
Reset conditions
1) TC1 > 12°C and TC2 > 12°C and TCJ > 12°C
2) 20 minutes passed after stop.
I
P1 a
K
Q1
J
described below based upon temp. detected by TC2 and
TCJ sensors.
• When "M" zone is detected for 45 minutes, the forced
thermo is OFF.
• In "N" zone, the timer count is interrupted and held.
• When shifting to "M" zone again, the timer count restarts
and continues.
• If "L" zone is detected, the timer is cleared and the
operation returns to normal operation.
Reset conditions
1) TC1 > 12°C and TC2 > 12°C and TCJ > 12°C
2) 20 minutes passed after stop.
(˚C)
L
P2
N
Q2
M
A zone: OFF
B zone:
Over 30˚C, below 32˚C, UL
C zone:
Over 32˚C, below 24˚C, L
D zone:
Over 24˚C, below 36˚C, H
E zone: HH
TC1 TC2, TCJ
P1 10°C (5°C) 10°C
Q1 0°C –14°C
TC2, TCJ
P2 5°C
Q2 –2.0°C
19
FILE NO. SVM-14078
Remarks
• In D and E zones, priority
is given to remote control-
ler air speed setup.
• In A and B zones, " " is
displayed.