12
(2) Turn the MAIN/SUB changeover switch on one of the
two remote controller PC boards to “S”.
(Leave the switch of the other remote controller set to “M”.)
Wiring Method
(See ‘‘9 ELECTRIC WIRING WORK’’)
(3)
Remove the control box lid
.
(4) Add remote controller 2 (SUB) to the terminal block for
remote controller (P
1
, P
2
) in the control box.
(There is no polarity.)
[ 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 select-
ing 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.
Only one remote controller
needs to be changed
if factory settings have
remained untouched.
(Factory setting)
S
M
S
S
M
Remote controller
PC board
Remote controller wiring
terminal block
Remote
controller 2
(SUB)
Remote
controller 1
(MAIN)
1
P
2
P
1
F
2
F
1
T
2
T
FORCED
OFF
REMOTE
CONTRL
TRANSMISSION
WIRING
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)
Input A
1
P
2
P
1
F
2
F
1
T
2
T
FORCED
OFF
REMOTE
CONTRL
TRANSMISSION
WIRING
Wire specification
Sheathed vinyl cord or cable (2 wires)
Gauge
AWG18 – 16
Length
Max. 328 ft.
External terminal
Contact that can ensure the minimum applica-
ble load of 15 V DC, 1 mA.
External static pressure
Mode No.
FIRST
CODE NO.
SECOND
CODE NO.
Standard
13(23)
5
01
High static pressure setting
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 con-
troller
Unit stopped by changing input A
from “on” to “off”
SETTING
Mode No.
SECOND
CODE NO.
FIELD SET
MODE
FIRST
CODE NO.
