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3. Operation Method
3.2 Operation Mode (Cool, Heat, Dry, Auto Cool/Heat and Fan Operation)
Heat mode is only available when the system is capable of both cooling and heating. The Heat icon is not
displayed on cooling only systems.
1. Operation mode setting
Step1. Press " " or " " to select "Mode".
Step2. Set the operation mode with " " or " ". The operation mode is switched in the following order:
"Cool" ↔ "Heat" ↔ "Dry" ↔ "Auto" ↔ "Fan"
If dual setpoint is selected in auto mode, both cooling setpoint and heating setpoint can be selected
individually.
By default, temperature is as follows when cool/heat mode changes:
•
Temperature switch from cool mode to heat mode:
Room temperature = Heating set temperature -1°C
•
Temperature switch from heat mode to cool mode:
Room temperature = Cooling set temperature +1°C
A/C
Main
26.0
20.0
Temp
NOTES:
•
The Auto Cool/Heat function needs to be activated through the function settings in the installation menu.
Please contact your service agent for details.
•
"Dry" mode may not be available depending on the type of indoor unit.
3.3 Temperature Setting
1. Temperature setting
Step1. Press " " or " " to select "Temp".
Step2. By pressing " ", the temperature is increased in increments of 0.5
By pressing " ", the temperature is decreased in decrements of 0.5
cooling mode and 17
NOTES:
•
Depending on the type and setting of the indoor unit, it may not be possible to set the temperature by 0.5
•
The max./ min. temperature may differ depending on the type of indoor unit.
•
The allowable minimum and maximum set temperatures can be individually altered for both cooling and
heating through the function settings in the installation menu. Additionally, both cooling and heating set
temperature ranges can be restricted through the Service menu.
•
If the "Automatic Reset of Setting Temperature" function is activated through the function settings in the
installation menu, the temperature automatically resets to the preset temperature after the predetermined
time set.
•
Contact your Hitachi service agent for assistance with setting the "Automatic Reset of Setting Temperature"
and "Temperature Range Restriction" functions.
6
Conference Room
26
C
.0
20
C
.0
COOL
HEAT
A
A
Auto
Fan Speed
Louver
Menu
o
C in the Heating mode.
A
A
Temp
Cool
.
Conference Room
A/C
Main
26
COOL
A
A
26.0
20.0
Temp
Auto
A/C
26
Main
26
.
0
Temp
Cool
o
C to a maximum of 30
o
C to a minimum of 19
Mode
Cool
Fan Speed
Louver
Menu
20
C
.0
C
.0
HEAT
Fan Speed
Louver
Menu
. 0
Fan Speed
Louver
Menu
o
C.
o
C in the
o
C.
A16381H9HL
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