Operation Procedure For Cooling, Heating, Dry And Fan Operations; Operation Procedure For Temperature, Fan Speed And Air Louver Direction Setting - Hitachi FSG1 Series Technical Catalogue

11.1.1. OPERATION PROCEDURE FOR COOLING, HEATING, DRY AND FAN OPERATIONS

Before Operation
Supply electrical power to the system for approximately 12 hours before start-up after long
shutdown. Do not start the system immediately after power supply, it may cause a
compressor failure, because the compressor is not heated well.
Make sure that the outdoor unit is not covered with snow or ice. If covered, remove it by
using hot water (less than 50°C).
If the water temperature is higher than 50°C, it will cause damage to plastic parts.
– Turn ON the power supply.
Three vertical lines appear on the liquid crystal display
A/C or VENTI is indicated on the liquid crystal display.
– Press the MODE switch.
By repeatedly pressing the MODE switch, the indication is changed in order of COOL,
HEAT, DRY and FAN (In case of Cooling Only model, COOL, DRY and FAN).
(The figure shows when setting "COOL" mode is selected).
– Press the RUN/STOP switch.
The RUN indicator (Red) is ON. The system is automatically started.
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NOTE:
Setting of Temperature, Fan Speed and Air Louver Direction
The setting condition is memorized after setting once, therefore the daily setting is
not required. In case that the setting is required to be changed, refer to "operation
procedure for Temperature, Fan Speed and Air Louver Direction Setting".
– Switch OFF (STOP)
Press the RUN/STOP switch again. The RUN indicator (Red) is OFF. The system is
automatically stopped.
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NOTE:
There could be a case that the fan operation is performed for approximately 2
minutes after the heating operation is stopped.

11.1.2. OPERATION PROCEDURE FOR TEMPERATURE, FAN SPEED AND AIR LOUVER DIRECTION SETTING

I
DO NOT touch the CHECK switch.
– The CHECK switch is used only when servicing.
– In case that the CHECK switch is pressed by mistake and the operation mode is
changed to the check mode, press the CHECK switch again for approximately 3
seconds, and press the CHECK switch once again after 10 seconds, and the
operation mode is changed to the normal condition.
n Setting of Temperature
Adjust the temperature by pressing TEMP "
The temperature is increased by 1 °C by pressing "
The temperature is decreased by 1 °C by pressing "
COOL, DRY and FAN mode, Min. 17 °C in case of HEAT mode).
(The figure shows when setting 28 °C).
n Setting of Fan Speed
Press the FAN SPEED switch.
By repeatedly pressing the FAN SPEED switch, the indication is changed in order of
HIGH, MED and LOW.
For standard operation, set the fan speed at HIGH.
(The figure shows when setting "MED" speed).
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NOTE:
In case of DRY mode, the fan speed is automatically changed to LOW, and can not
be changed (However, the indication shows the present setting condition).
REMOTE CONTROLLERS OPERATION
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" or " " switch.
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" switch (Max. 30 °C).
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" switch (Min. 19 °C in case of
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CAUTION:
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ATTENTION: