Hitachi PC-ARFP1E - OPERATION METHOD; Basic Operation; Operation Modes (Cooling, Heating, Dry, Auto, Fan); Pre-Operation Precautions

11 OPERATION METHOD
11.1 BASIC OPERATION
1 Item Selection.
By pressing “ ”or “ ”, the icon “ ” will move to the next
item in order of the indications “MODE”, “SPEED”, “LOUV.”
and “TEMP”.
A/C
MODE SPEED LOUV. TEMP
COOL
MED
Meeting Room
MODE ADJLOUV.
OK
2 Change of Settings
With the item (“MODE”, “SPEED”, “LOUV” or “TEMP”)
selected, press “ ” or “ ”. The setting will be changed.
A/C
MODE SPEED LOUV. TEMP
HEAT
HIGH
SPEED ADJ
Meeting Room
OK
11.2 OPERATION MODE (COOLING, HEATING, DRY, COOLING/HEATING AUTOMATIC AND
AIR FLOW OPERATION)

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 Flow Operation (FAN):
To circulate the air in the room.
? NOTE
The available set temperature is as follows:
• Cooling Operation: 19 to 30ºC
• Heating Operation: 17 to 30ºC
• Dry Operation: 19 to 30ºC

Before Operation
! CAUTION
• Supply the electrical power to the system for approximately 12
hours before start-up after long shutdown. Do not start the system
immediately after the power supply, it may cause a compressor
failure, because the compressor is not heated well. Do NOT turn OFF
the power supply during the seasons.
• Make sure that the outdoor unit is not covered with snow or ice. If
covered, remove it by using hot water (less than 50ºC).
• If the water temperature is higher than 50ºC, it will cause damage to
plastic parts.
1 Turn ON the power supply.
Connecting
2 Press “ ” or “ ” and select “MODE”.
A/C
MODE SPEED TEMP
COOL
HIGH
SPEED ADJ
Meeting Room
OK
3 By pressing “ ” or “ ”, the operation mode will be changed
as follows.
FAN
AUTO
DRY
HEAT
COOL
A/C
MODE SPEED TEMP
HEAT
HIGH
SPEED ADJ
Meeting Room
OK
? NOTE
The advanced setting is required for the “AUTO” operation. Contact your
distributor or dealer of Hitachi for detailed information.
OPERATION METHOD
PMML0404A rev.1.1 - 06/2022
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