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Fujitsu AST9UMBD User Manual

Fujitsu AST9UMBD
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7
Instructions relating to heating (*) are applicable only to HEAT & COOL MODEL (Reverse Cycle).
Example: When set to AUTO.
To Stop Operation
Press the START/STOP button.
The OPERATION indicator lamp (red) (Fig. 3 5) will go out.
About AUTO CHANGEOVER Operation
[HEAT & COOL MODEL (Reverse Cycle)]
AUTO: When AUTO CHANGEOVER operation first selected, the fan will oper-
ate at very low speed for about one minute, during which time the unit
detects the room conditions and selects the proper operating mode.
If the differance between thermostat setting and actual room tempera-
ture is more than +2 °C Cooling or dry operation
If the difference between thermostat setting and actual room tempera-
ture is within ±2 °C Monitor operation
If the difference between thermostat setting and actual room tempera-
ture is more than 2 °C Heating operation
When the air conditioner has adjusted your rooms temperature to near
the thermostat setting, it will begin monitor operation. In the monitor
operation mode, the fan will operate at low speed. If the room tem-
perature subsequently changes, the air conditioner will once again se-
lect the appropriate operation (Heating, Cooling) to adjust the tempera-
ture to the value set in the thermostat.
(The monitor operation range is ±2 °C relative to the thermostat set-
ting.)
If the mode automatically selected by the unit is not what you wish,
select one of the mode operation (HEAT, COOL, DRY, FAN).
When set to AUTO:
*Heating : Fan operates so as to optimally circulate warmed air.
However, the fan will operate at very low speed when the tempera-
ture of the air issued from the indoor unit is low.
Cooling : As the room temperature approaches that of the thermostat setting,
the fan speed becomes slower.
*Fan :
HEAT & COOL MODEL (Reverse Cycle)
The fan alternately turns on and off; when on, the fan runs at the low
fan speed.
The fan will operate at very low setting during Monitor operation and
at the start of the Heating mode.
Fan : COOLING MODEL
The fan will operate at the optimum speed in accordance with the
room temperature in the vicinity of the indoor unit.
When set to QUIET:
SUPER QUIET operation begins. The indoor units airflow will be reduced for quieter
operation.
SUPER QUIET operation cannot be used during Dry mode. (The same is true
when dry mode is selected during AUTO mode operation.)
During Super Quiet operation, *(Heating and) Cooling performance will be
reduced somewhat.
9375339012_OM_en.p65 21/12/05, 10:007

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Fujitsu AST9UMBD Specifications

General IconGeneral
BrandFujitsu
ModelAST9UMBD
CategoryAir Conditioner
LanguageEnglish

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