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NO. Item Specification outline Remarks
6 Cold air
discharge
prevention
control
TCJ: Indoor heat
exchanger sensor
temperature
• In zones D and E,
priority is given to
the remote
controller fan
speed setting.
• In zone A,
“HEATING
STANDBY
” is
displayed.
E
B
61 [16]
A
D
C
Zone A:OFF
Zone B:72°F[26°C] or above and
below 82°F[28°C]
Breeze
Zone C:82°F[28°C] or above and
below 86°F[30°C]
Low
Zone D:86°F[30°C] or above and
below 90°F[32°C]
Medium
Zone E:High
7 Freeze
prevention
control (low
temp. release)
1. During cooling, the air conditioner is operated in the manner described below
according to the temperature readings of the TC1, TC2 and TCJ sensors.
• If zone J operation is detected for 5 minutes, the air conditioner is forced into
thermostat OFF.
• In zone K, the timer is put on pause, with the current timer count retained.
• If zone I operation is detected, the timer count is cleared, and the air conditioner
returns to normal operation.
• If continuous zone J operation forces the air conditioner into thermostat OFF, the
indoor fan is operated in breeze mode until it moves into zone I.
The control is terminated under the following conditions:
Termination conditions
1) TC1 ≥ 54°F[12°C], TC2 ≥ 54°F[12°C], and TCJ ≥ 54°F[12°C]
2) Passage of 20 minutes after stoppage
TC1: Indoor heat
exchanger sensor
temperature
P1
Q1
J
K
a
I
°F[°C]
Temperature in ( ): If the temperature is below
this value when the power is turned on, the
air conditioner is forced into thermostat OFF.
TC1 TC2, TCJ
P1
50°F [41°F] 10°C [5°C] 14°F [-10°C]
Q1
32°F [0°C] 7°F [-14°C]
2. During cooling, the air conditioner is operated in the manner described below
according to the temperature readings of the TC2 and TCJ sensors.
• If zone M operation is detected for 45 minutes, the air conditioner is forced into
thermostat OFF.
• In zone N, the timer is put on pause, with the current
timer count retained.
• When the air conditioner goes back into zone M, timer count is resumed from the
retained value.
• If zone L operation is detected, the timer count is cleared, and the air conditioner
returns to normal operation.
P2
Q2
M
N
L
°F[°C]
TC2, TCJ
P2
41°F [5°C]
Q2
28°F [-2.0°C]
Reset conditions
1) TC1 ≥ 54°F [12°C], TC2 ≥ 54°F [12°C] and TCJ ≥ 54°F [12°C]
2) Passage of 20 minutes after stoppage
* With models
without TC2, TC2
is not part of the
control
parameters.
90 [32]
1. In heating operation, the upper limit of the fan tap is set according to the lower of
whichever is the higher between TC2 sensor and TCJ sensor temperatures, on the
one hand, and TC1 sensor temperature, on the other.
• If the fan continuously operates in zone B for 6 minutes, it automatically moves
into zone C.
• During defrosting, the control point is shifted by +10.8
°F[6°C]
86 [30]
82 [28]
75 [26]
68 [20]
°F[°C]
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