10 English
Wiring Method (See ‘‘ELECTRIC WIRING WORK’’)
(3) Remove the electric parts box lid
(4) Add remote control 2 (slave) to the terminal block for
remote controller (P
1
, P
2
) in the terminal box.
(There is no polarity.) (Refer to Fig. 2 and 8-3.)
9-4 COMPUTERISED CONTROL (FORCED OFF
AND ON/OFF OPERATION)
(1) Wire specifications and how to perform wiring
• Connect input from outside to terminals T1 and T2 of the
terminal block for remote controller.
(2) Actuation
• The following table explains FORCED OFF and ON/OFF
OPERATIONS in response to input A.
(3) How to select FORCED OFF and ON/OFF
• Turn the power on and then use the remote controller to
select operation.
9-5 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.
10. FIELD SETTING
Make sure the electric parts box lids are closed on the
indoor and outdoor units.
Field setting must be made from the remote controller in
accordance with the installation condition.
• Setting can be made by changing the “Mode No.”, “FIRST
CODE NO.”, and “SECOND CODE NO.”.
• For setting and operation, refer to the “FIELD SETTING” in
the installation manual of the remote controller.
• Set the remote controller to the field set mode. For
details, refer to the “HOW TO SET IN THE FIELD”, in the
remote controller manual.
• When in the field set mode, select mode No. 12, then set
the first code (switch) No. to “1”. Then set second code
(position) No. to “01” for FORCED OFF and “02” for ON /
OFF OPERATION. (FORCED OFF at factory set)
11. TEST OPERATION
Refer to the installation manual of the outdoor unit.
• The operation lamp of the remote controller will flash when
an malfunction occurs. Check the malfunction code on the
liquid crystal display to identify the point of trouble. An expla-
nation of malfunction codes and the corresponding trouble is
provided in “CAUTION FOR SERVICING” of the outdoor unit.
If any of the items in Table 4 are displayed, there may be a
problem with the wiring or power, so check the wiring again.
Tabl e 4
Wire specification Sheathed vinyl cord or cable (2 wire)
Gauge
0.75 - 1.25 mm
2
Length Max. 100 m
External terminal
Contact that can ensure the minimum
applicable load of 15 V DC, 10 mA.
FORCED OFF ON/OFF operation
Input “ON” stops operation (impossible by
remote controllers).
Input OFF → ON
turns ON unit.
Input OFF enables control by remote con-
troller.
Input ON → OFF
turns OFF unit.
F2 T1 T2
FORCED
OFF
Input A
Remote control display Content
“Concentrated
Management” is lit up
• There is a short circuit at the FORCED OFF
terminals (T1, T2)
“U4” is lit up
“UH” is lit up
• The power on the outdoor unit is off.
• The outdoor unit has not been wired for
power supply.
• Incorrect wiring for the transmission wiring
and / or FORCED OFF wiring.
No display
• The power on the indoor unit is off.
• The indoor unit has not been wired for
power supply.
• Incorrect wiring for the remote controller
wiring, the transmission wiring and / or the
FORCED OFF wiring.
SETTING
Mode No.
SECOND
CORD NO.
FIRST
CORD NO.
FIELD SET MODE
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