English
13
[ 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
, P
2
) to remote controller 2 (SUB).
10-3 REMOTE CONTROL (FORCED OFF AND ON/
OFF OPERATION)
•
Connect input lines from the outside to the terminals T
1
and T
2
on the terminal block (6P) for remote controller to
achieve remote control.
•
See the “
11. FIELD SETTING AND TEST RUN”
for
details on operation.
10-4 CENTRALIZED CONTROL
•
For centralized control, it is necessary to designate the group
No. For details, refer to the manual of each optional control-
lers for centralized control.
11. FIELD SETTING AND TEST RUN
Field settings may have to be performed using the
remote controller, depending on the type of installation.
(1) Make sure the control box lids are closed on the indoor
and outdoor units.
(2) Depending on the type of installation, make the field
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.
•
Lastly, make sure the customer keeps the “Field Settings”
manual, along with the operating manual, in a safe place.
11-1 SETTING THE STATIC PRESSURE SELECTION
•
Select the SECOND CODE NO. for the resistance of the con-
nected duct.
(The SECOND CODE NO. is set to “01” when shipped.)
•
See the technical documentation for details.
11-2 REMOTE CONTROL SETTING
•
Forced off and ON/OFF operation should be selected by
selecting the SECOND CODE NO. as shown in the table
below.
(The SECOND CODE NO. is set to “01” when shipped.)
•
Input A of forced off and ON/OFF operation work as shown in
the table below.
11-3 SETTING THE FILTER SIGN DISPLAY INTERVAL
•
Explain the following to the customer if the filter dirt settings
have been changed.
•
The filter sign display time is set to 2500 hours
(equivalent to 1 year’s use) when shipped.
•
The settings can be changed to not display.
•
When installing the unit in a place with much dusts, set the fil-
ter sign display time to shorter intervals (1,250 hours).
•
Explain it to the customer that the filter needs to be cleaned
regularly to prevent clogging and also the time that is set.
Wire specification
Sheathed vinyl cord or cable (2 wires)
Gauge
0.75 - 1.25 mm
2
Length
Max. 100 m
External terminal
Contact that can ensure the minimum applica-
ble load of 15 V DC, 1 mA.
Remote controller 2
(SUB)
Remote controller 1
(MAIN)
Crossover wire (P
1
.P
2
)
Max. No. of
indoor units
Indoor unit 2
Indoor unit 1
1
P
2
P
1
F
2
F
1
T
2
T
FORCED
OFF
REMOTE
CONTRL
TRANSMISSION
WIRING
Input A
SETTING
Mode No.
SECOND
CODE NO.
FIELD SET
MODE
FIRST
CODE NO.
External static
pressure
Mode No.
FIRST
CODE NO.
SECOND
CODE NO.
Standard
(10Pa)
13(23)
5
01
High static pres-
sure setting
(30Pa)
02
External ON/OFF input
Mode No.
FIRST
CODE NO.
SECOND
CODE NO.
Forced off
12(22)
1
01
ON/OFF operation
02
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”
Mode No.
FIRST CODE NO.
SECOND
CODE NO.
01
02
10 (20)
0
Filter dirt
low
high
1 (low/high)
Displayed time
(units: hours)
2500/
1250
10000/
5000
3
Filter sign
display
ON
OFF
