5 User interface
Installation and operation manual
8
FXSN50~112A2VEB
CO
₂
Conveni-Pack: indoor unit
4P602815-1F – 2021.07
a
b
e
e
d
c
f
h
i
j
k
h
l
i
j
k
l
g
a
Main outdoor unit (LRYEN10*)
b
Capacity up unit (LRNUN5*)
c
Communication box (BRR9B1V1)
d
Indoor unit for air conditioning
e
Indoor unit for refrigeration (showcase)
f
Indoor unit for refrigeration (blower coil)
g
Safety valve
h
CO
2
control panel
i
CO
2
detector
j
CO
2
alarm
k
CO
2
ventilator
l
Shut off valve
5
User interface
CAUTION
▪ NEVER touch the internal parts of the controller.
▪ Do NOT remove the front panel. Some parts inside are
dangerous to touch and appliance problems may
happen. For checking and adjusting the internal parts,
contact your dealer.
This operation manual offers a non-exhaustive overview of the main
functions of the system.
For more information about the user interface, see the operation
manual of the installed user interface.
6
Operation
6.1
Operation range
Use the system in the following temperature and humidity ranges for
safe and effective operation.
Cooling and drying
Heating
Outdoor unit
–5~43°C DB
–20~16°C WB
Cooling and drying
Heating
Indoor unit
14~24°C WB
15~27°C DB
Indoor humidity
≤80%
(a)
—
(a)
To avoid condensation and water dripping out of the unit. If the
temperature or the humidity is beyond these conditions, safety
devices may be put in action and the air conditioner may not
operate.
6.2
About operation modes
INFORMATION
Depending on the installed system, some operation modes
will not be available.
▪ The air flow rate may adjust itself depending on the room
temperature or the fan may stop immediately. This is not a
malfunction.
▪ If the main power supply is turned off during operation, operation
will restart automatically after the power turns back on again.
▪
Setpoint.
Target temperature for the Cooling, Heating, and Auto
operation modes.
▪
Setback.
A function that keeps the room temperature in a specific
range when the system is turned off (by the user, the schedule
function, or the OFF timer).
6.2.1
Basic operation modes
The indoor unit can operate in various operation modes.
Icon
Operation mode
Cooling.
In this mode, cooling will be activated as
required by the setpoint, or by Setback operation.
Heating.
In this mode, heating will be activated as
required by the setpoint, or by Setback operation.
Fan only.
In this mode, air circulates without heating
or cooling.
Dry.
In this mode, the air humidity will be lowered with
a minimal temperature decrease.
The temperature and fan speed are controlled
automatically and cannot be controlled by the
controller.
Dry operation will not function if the room temperature
is too low.
Auto.
In Auto mode, the indoor unit automatically
switches between heating and cooling mode, as
required by the setpoint.
