4. AUTO CHANGEOVER OPERATION
When the air conditioner is set to the AUTO mode by remote cintrol, operation starts in the optimum
mode from amoung the HEATING, COOLING, DRY and MONITORING modes. During operation, the
optimum mode is automatically swiched in accordance with temperature changes. The temperature
can be set between 18°C and 30°C in 1°C steps.
.When operation starts, only the indoor and outdoor fans are operated for 1 minute. After 1 minute,
the room temperature and outside air temperature are sensed and the operation mode is
selected in accordance with the table below.
Czone
32°C
B zone
10°C
A zone
( Table.4 Operation mode selection table)
Outside air temperature (TO)
Room temperature(TB)
A zone B zone C zone
TB > TS+2°C
Monitoring
Cooling
(automatic dry)
Cooling
(automatic dry)
TS+2°C TB TS - 2°C
Monitoring Monitoring Monitoring
TB TS- 2°C Heating Heating Monitoring
.When COOING was selected at , the air conditioner operates as follow:
The same operation as COOLING OPERATION of item 1 above is performed.
When the room temperature has remained at (set tempareure-1°C) for 8 minutes, operation is
automatically switched to DRY and the same operation as DRY OPERATION of item 3 above
is performed.
If the room temperature reaches (set temperature+2°C during DRY operation, operation returns to
COOLING operation.
.When HEATING was selected at , the same operation as HEATING OPERATION of item 2
above is performed.
When the compressor was stopped for 6 consecutive minutes by the temperature control function
after the COOLING or HEATING operation mode was selected at above, operation is switched
to MONITORING and the operation mode is selected again.
1
<
1
2
3
1
4
1
( Fig.5 : Outside air temperature zone selection )
05-04
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