Special Installation Methods - FG Europe LMTA Series Installation Manual

Installing the external connect kit
13.2.
(1) Install the cable as shown in the following photograph.
Be sure to place the wiring under the tabs.
Installing the other optional parts
13.3.
• Communication kit
• External input and output PCB*
• External input and output PCB box
* Optional External input and output PCB box is necessary for the installation.
Refer to each installation manual for the method of installing the other optional parts.
Front panel, control box cover replacement
13.4.
Reinstall by reversing the procedure in "13.1. Front panel, control box cover removal".
(1) Replace the control box cover and screws.
(2) Open a hole in the front panel for the remote controller cable to pass through.
* Choose from 4 knockout holes marked on the inside of the front panel.
(3) Replace the front cover.
Refer to "9.2. Front panel installation".

14. SPECIAL INSTALLATION METHODS

Group control system
A number of indoor units can be operated at the same time using a single remote controller.
*When connecting different types of indoor units (such as wall mounted, cassette, duct, or
other types), some functions may be restricted.
(1) Connect multiple indoor units in a system.
I.U. I.U.
B C
A
Remote
controller
A, B, C, D, E : Remote controller cable.
A+B+C+D+E ≤ 500 m
Connector
CN2 or CN3
Tabs
Screw
Screw
I.U. I.U.
D E
Select the appropriate cable depending on the total wiring length.
Total wiring length of remote
controller cable
(A+B+C+D+E)
500 m or less
Example of wiring method (2-wire type)
Indoor unit 1 Indoor unit 2
Remote
Y1 Y2
controller cable
Remote controller
(2) Set the R.C. address (Function setting)
(a) 2-wire type
Automatic setting:
• Addresses will be automatically set when initially starting up this unit. In such a
case, do not change the R.C. address of the indoor unit, and keep it at the initial
setting (00).
• Connect up to 16 indoor units in a system.
Manual setting:
• Only set addresses manually when using different numbers for addresses.
Set the R.C. address of each indoor unit with the wireless remote controller.
Also set the R.C. address of the wired remote controller. For details, please refer
to the remote controller installation manual.
* In manual setting, connect up to 15 indoor units in a system.
* Do not use the R.C. address "00".
(b) 3-wire type
Manual setting:
• Set the R.C. address of each indoor unit with the wireless remote controller.
• Set each R.C. address in sequence from "00".
• Connect up to 16 indoor units in a system.
Example of R.C. address setting (3-wire type)
Indoor unit 1 Indoor unit 2
RC AD RC AD
00 01
Remote
controller
Remote controller address setting
Function
Setting Value
Number
00
01
00
02 ~ 13
14
15
* Do not use the same setting value.
* After completing the Function Setting, be sure to disconnect the power supply and then
reconnect it.
NOTES:
Set the R.C. address by the wireless remote controller.
Cross section of cable
2
0.3-1.25 mm
Indoor unit 3 Indoor unit 4
PCB or terminal block
for wired remote controller
Indoor unit 3 Indoor unit 4
RC AD RC AD
03
02
(♦... Factory setting)
Setting Description
2-wired type: Setting prohibited
3-wired type: Unit no. 0
Unit no. 1
Unit no. 2 ~ Unit no. 13
Unit no. 14
Unit no. 15
♦
En-9