140-EN
139-EN
– 70 –
EN
When setting the speci
fi
c indoor unit to Cooling Only unit without connecting to the
fl
ow selector unit, setup to the
indoor unit to become the Cooling Only unit is necessary. Perform setup in the following procedure.
Setup to the indoor unit is performed by handling the wired remote controller.
Even if a wired remote controller is not used, attach a wired remote controller for setup.
Change the setup with the wired remote controller before using the air conditioner with a wireless remote
controller.
Change the setup during stop of the operation. (Be sure to stop operation of the air conditioner.)
1. Push and hold “
MENU” button and
[
]
setting button simultaneously for 4 seconds or more.
2. Select the ”DN setting” using the
[
]
and
[
]
button and Push the “F2 (Set)” button.
Select the corresponding ”Indoor unit” using the “F1 (Unit)” button and push the “F2 (Set)” button.
(The fan and louvers of the selected indoor unit will be activated.)
3. Set the Indoor Unit Function Code (I.DN) to [0F] and the data using the
[
]
and
[
]
button
(The fan of the selected indoor unit is turned on.)
4. Push the menu button to make Set data [
ᅷᅷᅷᅷ
]
fl
ash. Push the
[
]
[
]
buttons repeatedly
SET DATA
0000
0001
Cooling Only setup
Heat pump
Cooling Only
5. When done, press the “
MENU” button.
6. Push the “
Back CANCEL” button and complete the setting for the time being.
2
1
1,5
6
2,3,4
CAUTION
Cooling Only and Heat pump cannot exist in the same group.
Before test run
Con
fi
rm that the valve of the refrigerate pipe of the outdoor unit is OPEN.
• Before turning on the power, con
fi
rm that the resistance between the terminal block of power supply and the
earth is more than 2M
Ω
using a 500V megohmmeter.
Do not run the unit if it is less than 2M
Ω
.
CAUTION
• Turn on the power and turn on the case heater of the compressor.
To save the compressor when it is activated, leave the power on for more than 12 hours.
Methods of test run
13
How to set up the cooling only indoor unit
¡
When connecting an Flow
Selector unit or a shut-off valve
unit, perform the following
detailed inspection mode.
The detailed inspection mode is performed on the
interface board of the outdoor unit.
Detailed inspection mode is completed in about
40 minutes in general and about 90 minutes at
maximum.
<Detailed inspection mode start operation>
1
Set the rotary switch on the interface board
of the outdoor unit to SW01=[2], SW02=[15],
sw03=[16].
7-segment display
[A]
[ ]
[B]
[ ]
2
Push SW04 for at least 2 seconds.
7-segment display
[A]
[FS]
[B]
[CH]
If the detailed inspection mode successfully completes,
the following will be displayed.
7-segment display
[A]
[FS]
[B]
[ - - ]
If there is an incorrect electrical wiring, incorrect piping
connection, incorrect indication, etc., the following will
be displayed.
If there are multiple indoor units with errors, Push
SW06 to change the address display of the indoor unit.
(If there is only one indoor unit with an error, the
display remains the same.)
7-segment display
[A]
[U1]
[B]
[Err]
剚
[ ]
ڃ
The indication changes
every 0.5 second.
Address of the error indoor unit
If [Err] is indicated on 7-segment display, execute
a cooling/heating test run for each indoor unit and
check cool/hot air is blowing. Also, check the piping
connection, wiring connections, and settings again.
If there is no problem after checking again, the system
is normal.
When you modify piping connections, wiring
connections, or settings, execute detailed inspection
mode again.
Please contact a quali
fi
ed service person if there is
any trouble during test run.
*[Err] may be indicated even if there is no problem.
• When the temperature difference is large between
in each indoor unit.
• When the FS unit or Shut-off Valve is connected
to the main pipe from the outdoor unit.
<Detailed inspection mode end operation>
14
Test run
