English
10
[ PRECAUTIONS ]
Crossover wiring is needed when using group control and 2
•
remote controllers at the same time.
Connect the indoor unit at the end of the crossover wire (P
•
¹,
P²) to remote controller 2 (SUB).
Indoor unit 1
Indoor unit 2
Max. No. of
indoor units
Crossover wire (P
1
.P
2
)
Remote controller 1
(MAIN)
Remote controller 2
(SUB)
REMOTE CONTROL (FORCED OFF AND ON/
9-3
OFF OPERATION)
Connect input lines from the outside to the terminals T
•
¹ and
T² on the terminal block (6P) for remote controller to achieve
remote control.
See the “
•
10. FIELD SETTING AND TEST RUN
” for details
on operation.
Input A
1
P
2
P
1
F
2
F
1
T
2
T
FORCED
OFF
REMOTE
CONTRL
TRANSMISSION
WIRING
Wire specifi cation
Sheathed vinyl cord or cable (2 wires)
Gauge
AWG18 – 16
Length
Max. 328 ft.
External terminal
Contact that can ensure the minimum
applicable load of 15 V DC, 1 mA.
CENTRALIZED CONTROL
9-4
For centralized control, it is necessary to designate the
•
group No. For details, refer to the manual of each optional
controllers for centralized control.
FIELD SETTING AND TEST RUN
10.
〈
Field settings may have to be performed using the re-
mote controller, depending on the type of installation.
〉
Make sure the terminal block box covers are closed
(1)
on the indoor and outdoor units.
Depending on the type of installation, make the fi eld
(2)
settings from the remote controller after the power is
turned on, following the “Field Settings” manual which
came with the remote controller.
The settings can select “Mode No.”, “FIRST CODE NO.”
•
and “SECOND CODE NO.”.
The “Field Settings” included with the remote controller
•
lists the order of the settings and method of operation.
SETTING
Mode No.
FIELD SET
MODE
SECOND
CODE NO.
FIRST
CODE NO.
Lastly, make sure the customer keeps the “Field Settings”
•
manual, along with the operating manual, in a safe place.
SETTINGS WHEN USING THE OPTIONAL RE-
10-1
MOTE SENSOR
This product does not include an air inlet thermistor.
It uses a remote controller thermistor for control purposes.
For this reason, it is necessary to install an optional remote
thermistor in the following cases:
When the remote controller will be installed at a location
•
where it cannot accurately measure the indoor temperature.
When using a remote controller without a built-in thermistor
•
(simple remote controller, central remote controller, wireless
remote controller, no remote controller).
When using a remote controller thermistor, change the
settings as described below:
(The SECOND CODE NO. is set to “03” when shipped.)
Mode No.
FIRST
CODE NO.
SECOND
CODE NO.
To use both the remote
controller thermistor and the
remote thermistor
10 (20)
2
01
To use only the remote
thermistor
02
To use only the remote
controller thermistor
03
REMOTE CONTROL SETTING
10-2
Forced off and ON/OFF operation should be selected by select-
•
ing the SECOND CODE NO. as shown in the table below.
(The SECOND CODE NO. is set to “01” when shipped.)
External ON/OFF input
Mode No.
FIRST
CODE NO.
SECOND
CODE NO.
Forced off
12 (22)
1
01
ON/OFF operation
02
Input A of forced off and ON/OFF operation work as shown
•
in the table below.
Forced off
ON/OFF operation
Input A “on” to force a stop
(remote controller reception
prohibited)
Unit operated by changing input
A from “off” to “on”
Input A “off” to allow remote
controller
Unit stopped by changing input A
from “on” to “off”
SETTING THE FILTER SIGN DISPLAY INTERVAL
10-3
Explain the following to the customer if the fi lter dirt settings
•
have been changed.
The fi lter sign display time is set to 2500 hours (equivalent
•
to 1 year’s use) when shipped.
01_EN_3P250363-1.indd 10
01_EN_3P250363-1.indd 10
6/18/2009 2:01:21 PM
6/18/2009 2:01:21 PM
