Hitachi PC-ARH1E - Operation Modes Explained; Automatic Cooling;Heating Operation

5.2 OPERATION MODE (COOLING, HEATING,
DRY, COOLING/HEATING AUTOMATIC
AND AIRFLOW OPERATION)
5.2.1 Function
• Cooling Operation (COOL): To decrease the room
temperature.
• Heating Operation (HEAT): To increase the room
temperature.
• Dry Operation (DRY): To decrease the humidity in the room.
• Cooling/Heating Automatic Operation (AUTO): To cooling
and heating automatic changeover.
• AirowOperation(FAN):Tocirculatetheairintheroom.
5.2.2 Before Operation
! CAUTION
• TurnONthepowersupplyfortheairconditioner.
• Toprotectthecompressorunit,thepowersupplyshouldbe
energized12hoursbeforethestartupoperationisbegun.
• DonotturnOFFthepowersupplyduringin-seasonheatingor
coolingoperation.
• Makesurethattheoutdoorunitisalwaysfreeoficeandsnow.If
snowcovered,removeitbyusinghotwater(coolerthan50
o
C).Ifthe
watertemperatureishigherthan50
o
C,itwilldamageplasticparts.
By pressing “Mode”, the operation mode will be adjusted as
follows.
DRY
HEAT
COOL
FAN
(AUTO
)
? NOTE
The advancedsetting is requiredfor “AUTO”operation mode. Contact
yourdistributorordealerfordetailedinformation.
5.3 AUTOMATIC COOLING/HEATING
OPERATION
In case dual setpoint is selected in automatic cooling/heating
operation, during auto mode both cooling setpoint and heating
setpoint can be selected.
Automatically and according the indoor temperature the mode
changes as follow:
when mode is in cooling, the mode is change to heating if the
indoor temperature is the “heating setpoint” -1°C.
when mode is in heating, the mode is changed to cooling if the
indoor temperature is the “cooling setpoint” +1°C.
? NOTE
IncaseofAUTOCOOLindication.
By pressing “Mode”, the operation mode will be adjusted as
follows.
DRY
HEAT
COOL
(AUTO
)
(AUTO
)
FAN
? NOTE
• ForAutoCOOL/HEAT,thoughthetemperatureindicationondisplay
changesbypressing“Mode”,theactualoperationmoderemainsas
“AUTO”and it does notchange betweenAUTO COOL andAUTO
HEAT.
• Advancedcongurationisneededfortheuseofautomaticcooling/
heatingoperationandchangingAUTOHEAT/COOLtemperature.
• Contactyourdistributorordealerfordetailedinformation.
OPERATION
PMML0497 rev.1 - 12/2020
5
ENGLISH