CONTROL BY 2 REMOTE CONTROLLERS (CONTROLLING 1 INDOOR UNIT BY 2 RE-
MOTE CONTROLLERS)
When using 2 remote controllers, one must be set to “MAIN” and the other to “SUB”. •
For details, refer to the installation manual attached to the remote controller.
Wiring Method (See “7. ELECTRIC WIRING WORK”)
Remove the control box cover.(1)
Add the remote control 2 (sub) to the terminal block (6P) for remote controller (P1, P2) in the (2)
control box.
(There is no polarity.) (Refer to Fig. 26 and section 7-3 for the wiring size.)
COMPUTERISED CONTROL (FORCED OFF AND ON/OFF OPERATION)
Wire specifi cations and how to perform wiring(1)
Connect the input from outside to terminals T1 and T2 of the terminal block (6P). •
Input A
Fig. 28
F2 T1 T2
FORCED
OFF
Wire specifi cation Sheathed vinyl cord or cable (2 wire)
Gauge AWG18-16
Length Max. 328 ft.
External terminal
Contact that can ensure the minimum
applicable load of 15V DC, 1 mA.
Actuation(2)
The following table explains FORCED OFF and ON/OFF OPERATIONS in response to Input A. •
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 controller. Input ON → OFF turns OFF unit.
How to select FORCED OFF and ON/OFF OPERATION(3)
Turn the power on and then use the remote controller to select operation. •
Set the remote controller to the fi eld set mode. For details, refer to the •
“HOW TO SET IN THE FIELD”, in the remote controller manual.
When in the fi eld 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) (Refer to Fig. 29)
CENTRALIZED CONTROL
For centralized control, it is necessary to designate the group No. For details, refer to the manual of each •
optional controllers for centralized control.
Unit No
0
2
–
02
6
–––
a
–––
3
–
01
7
–––
b
–––
Field Settings
0
–
01
4
–––
8
–––
Setting
Mode
12
1
–
01
5
–––
9
–––
FIRST
CODE NO.
SECOND
CODE NO.
Fig. 29
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