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Function
Function
Setting number
number
Follow the
Fan set-
setting on
00
ting when
the remote
cooling
49
controller
thermostat
OFF
01 Stop
00 Mode 0
01 Mode 1
Switching
02 Mode 2
functions
03 Mode 3
for external
inputs and
60
04 Mode 4
external
05 Mode 5
outputs
06 Mode 6
terminals
07 Mode 7
08 Mode 8
Auxiliary
00
heater con-
trol 1
Auxiliary
01
heater con-
trol 2
Heat pump
Control
02
prohibition
switching
61
control
of external
Heater selec-
heaters
tion control
03
using outdoor
temperature 1
Heater selec-
tion control
04
using outdoor
temperature 2
00 Setting 0
01 Setting 1
Operating
temperature
02 Setting 2
switching
62
03 Setting 3
of external
04 Setting 4
heaters
05 Setting 5
Single
setpoint auto
00
mode
Auto mode
(traditional)
68
type
Dual setpoint
01
auto mode
00 0°F (0°C)
01 1°F (0.5°C)
02 2°F (1.0°C)
03 3°F (1.5°C)
04 4°F (2.0°C)
Deadband
69
value
05 5°F (2.5°C)
06 6°F (3.0°C)
07 7°F (3.5°C)
08 8°F (4.0°C)
09 9°F (4.5°C)
(Forbidden)
70
00
Temperature conditions when the external heater is ON
Temperature (t) when the external heater is ON= Room temperature - set temperature
00
00
t < -5.4°F (-3°C)
01
t < -3.6°F (-2°C)
02
t < -3.6°F (-2°C)
03
t < -5.4°F (-3°C)
04
t < -7.2°F (-4°C)
05
t < -9.0°F (-5°C)
Default
Details
When set to 01, the fan stops
when the thermostat is OFF in
cooling operation. Connection
of the wired remote control-
ler (2-wire type or 3-wire type)
and switching its thermistor are
necessary.
• Set this function when connect-
ing the VRF system to a ventila-
tor, economizer, humidifi er, or
other external device.
• The connection terminal func-
tions can be changed depending
on the type of external device.
For details of the connection ter-
minal functions, see the Design
& Technical Manual.
Sets the control method for the
external heater being used. For
details of the control method, see
the Design & Technical Manual.
• Sets the temperature conditions
when the external heater is ON.
• For the temperature conditions,
see "Temperature conditions
when the external heater is ON".
For a more detailed explana-
tion, see the Design & Technical
Manual.
Switch the setting method of
auto mode to single or dual
(cooling/heating).
For heat pump systems, it is
necessary to set the master
indoor unit (by wired remote
controller).
Choose the minimum temperature
between cooling and heating
settings (deadband) for Dual
setpoint auto mode (set in No. 68).
Set value of function: 61
01
02
03
t ≤ -0.9°F (-0.5°C)
t ≤ -1.8°F (-1°C)
t ≤ -3.6°F (-2°C)
t ≤ -5.4°F (-3°C)
t ≤ -7.2°F (-4°C)
t ≤ -9.0°F (-5°C)
8. CASSETTE GRILLE INSTALLATION
• Operate according to the installation Manual CASSETTE GRILLE.
• Be sure to confirm there is no gap between the cassette grille and main unit after install-
ing the CASSETTE GRILLE.
9. TEST RUN
9.1. Test run using Outdoor unit (PCB)
Refer to the Installation Manual for the outdoor unit if the PCB for the outdoor unit is to be
used for the test run.
9.2. Test run using remote controller
• Refer to the Installation Manual for the remote controller to perform the test run using the
remote controller.
• When the air conditioner is being test run, the OPERATION and TIMER indicator lamp
flash slowly at the same time.
10. CHECK LIST
Pay special attention to the check items below when installing the indoor unit(s). After
installation is complete, be sure to check the following check items again.
Check items
Has the indoor unit been installed
correctly?
Has there been a check for gas leaks
(refrigerant pipes)?
Has heat insulation work been com-
pleted?
Does water drain easily from the indoor
units?
Is the voltage of the power source the
same as that indicated on the label on
the indoor unit?
Are the wires and pipes all connected
completely?
Is the indoor unit earthed (grounded)?
Is the connection cable the specified
thickness?
Are the inlets and outlets free of any
obstacles?
Does start and stop air conditioner
operation by remote control unit or
external device?
After installation is completed, has the
proper operation and handling been
explained to the user?
04
Check
If not performed correctly
Vibration, noise, indoor unit may
drop
No cooling, No heating
Water leakage
Water leakage
No operation, heat or burn damage
No operation, heat or burn damage
Short circuit
No operation, heat or burn damage
No cooling, No heating
No operation
box
En-12
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