GSXP12HRN
2 – 7
[3] FUNCTION
1. INDOOR UNIT
1.1. Startup control
The main relay remains off during the first 45 seconds (first safety
time) immediately after the power cord is plugged into an AC outlet in
order to disable outdoor unit operation and protect outdoor unit electric
components.
1.2. Restart control
Once the compressor stops operating, it will not restart for 180 sec-
onds to protect the compressor.
Therefore, if the operating compressor is shut down from the remote
control and then turned back on immediately after, the compressor will
restart after a preset delay time.
(The indoor unit will restart operation immediately after the ON switch
is operated on the remote control.)
1.3. Temperature Adjustment
1.3.1 Cooling
When the room temperature is higher than the preset temperature by
2°C or more, the unit runs at the maximum operation frequency until
the temperature comes down to the preset temperature.
When reaching the preset temperature, the unit runs at the frequency
calculated by the fuzzy operation and switches to the normal control.
1.3.2 Heating
When the room temperature is lower than the preset temperature by
3.5°C or more, the unit runs at the maximum operation frequency until
the temperature comes down to the preset temperature.
When reaching the preset temperature, the unit runs at the frequency
calculated by the fuzzy operation and switches to the normal control.
1.3.3 Dry
After operation begins, 2 minutes of the room temperature is stored in
memory, and that becomes the set value.
1.4. Indoor fan control
1.4.1 Cooling
The fan speed can be selected from “Auto”, “Soft”, “Low”,and
“HIgh”.When “Soft”, “Low” or “HIgh” is selected, the fanspeed is con-
stant regardless of the room temperature.When “Auto” is selected, the
fan speed automatically changes between “Soft” and “HIgh” depend-
ing on the difference between the room and preset temperature.
Control for indoor freezing prevention
If the temperature of the indoor heat exchanger stays below approxi-
mately 0°C for 4 minutes during cooling or dry, this control stops the
compressor. Over 2°C the compressor will run again.
1.4.2 Heating
Control for cold air blowing prevention
When heating begins, this control stops the indoor fan until the tem-
perature of the indoor heat exchanger reaches 23°C. It also stops the
fan if the temperature goes below 21°C during operation.
1.5. Automatic operation
The operating mode and temperature setting are determined by the
room temperature and the external air temperature.
The operating mode will changeover automatically with the fol-
lowing condition.
1) From cooling to heating
Cooling mode will changeover to heating mode when condition of
indoor temperature 1.7°C lower than the set temperature condi-
tions for 5 minutes.
2) From heating to cooling
Heating mode will change over to cooling mode when condition of
indoor temperature 1.3°C higher than the set temperature condi-
tions for 25 minutes under compressor off condition.
3) When the set temperature is adjusted within the range of ±2°C by
the remote control’s key.
( ), the changeover judgement room temp. will also be shifted
within the range of ±2°C.
1.6. ON-timer
The ON-timer is set by pressing the ON-timer button.
In order to attain the set temperature at the set time.
1.7. OFF-timer
The OFF-timer is set by pressing the OFF-timer button. Operation is
as follows:
* During Heating
Compressor operation
ON operation on
remote control
OFF operation on
remote control
Compressor ON
Compressor ON Compressor can
turn ON
Compressor remains OFF
for 180 seconds
Set temperature
Cooling
Heating
By fuzzy computing
Set the shift up time
Final Cooling setting + 1°C
Heating setting - 3°C
Dry Same as above
(Final setting + 1°C)
The indoor fan stops.
Temperature of the indoor heat exchanger
Preset Fan speed
The indoor fan operates at low speed.
35ºC
23ºC
32ºC
21ºC
Heating
(24ºC)
Heating
(23ºC)
Cooling
(24ºC)
Cooling
(24ºC)
(Room temperature
-2ºC)
Cooling
(25ºC)
Cooling
(26ºC)
(Dry)
Room
temperature
(ºC)
When the cooling operation only can use winter kit
21
29
01018 28 34
Outdoor
temperature (ºC)
Cooling
(25ºC)
Cooling
(26ºC)
Heating
(22ºC)
3ºC
Room
temperature
Timer set time
1
hour
Timer operation starts Stops
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