Fujitsu AUU7RLF Design & Technical Manual page 99

• Maximum wiring length of the remote controller cable: 984 ft (300 m)
Even if the maximum wiring length of the product itself is specified as longer than 984 ft (300 m),
the maximum length of the remote controller cable will be 984 ft (300 m) if the system is group-
connected.
When total wiring length is longer than 328 ft (100 m), the cable diameter needs to be changed as
follows:
Total wiring length of remote controller cable
328—656 (100—200)
656—984 (200—300)
• Required parts for group connection
– Optional part:
Wall mounted
As for the optional parts, refer to Chapter 16-3.
– Service part: Wire with connector (Service part no. 9705932012)
Wiring example for multiple remote control or group control:
Indoor unit
Indoor unit
NOTES:
• Conceal the wirings of the group connection inside of the wall or by means of trunking at the
thickness of 1-mm or more to prevent electrical shocks when getting in touch with the cables
under certain circumstances.
• When using the Communication kit for wall mounted type, store the crimping terminals inside
the Communication kit.
• In the wireless remote controllers for the group connection, its remote controller address can
be set by its own. For the details, refer to following section "Remote controller address setting
procedure for wireless remote controllers".
An error is displayed immediately just turning on the power to effect the settings of the group
connection. However the error will automatically disappear when the subsequent function set-
ting is completed.
• Bundle the wires with a cable tie to prevent external pressures apply on the crimping termi-
nals. (Ensure that the tensile strength for the splicing position is 10 N or above.)
12-1. Precautions on creating a group connection
Unit: ft (m)
328 (100) or less
Indoor unit type
ASU7-15RLF1
Communication kit Wire with connector
Cross section of cable
Unit: AWG (mm
18—22 (0.3—0.8)
18—20 (0.5—0.8)
Communication kit
UTY-XCBXZ2
"Others" on page 151.
Crimping terminal and its insulation cap
(Locally purchased)
Remote controller cable (Locally purchased)
- 93 -
2
)
18 (0.8)
To the other indoor units or
wired remote controller
To the other indoor units or
wired remote controller
12. Group connection