CONTROL SYSTEM
TC-15001-rev.3
6-17
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:LULQJ([DPSOHXVLQJDVKLHOGHGFRPPXQLFDWLRQFDEOH
Max. 16 Indoor Units
Controller
Electrical Box
of Indoor Unit
Electrical Box
of Indoor Unit
Terminal Board
Terminal Board
M3.5
Screws
M3.5
Screws
Shield Communication Cable: 1P- AWG 18 (0.82mm
2
) or more
A
A
B
B
CN1
$77(17,21
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the controller.
A. Use AWG 22 (0.32mm
2
) to AWG 18 (0.82mm
2
) cable (Max. total cable length 98 ft. 4-13/16 in. (30m)).
If the total cable length is longer than 98 ft. 4-13/16 in. (30m), use communication cable (1P to AWG 18
(0.82mm
2
)) (Max. total cable length 1,640 ft. 6 in. (500m)). Communication cabling shall be a minimum of
18-Gauge, 2-Conductor, Stranded Copper. Shielded cable must be considered for applications and routing
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communication errors. When shielded cabling is applied, proper bonding and termination of the cable
shield is required as per Johnson Controls guidelines. Plenum and riser ratings for communication cables
must be considered per application and local code requirements.
B. Keep a distance of more than 11-13/16 in. (30cm) between the controller / indoor unit communication
cables and the power wiring.
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RIWKHSLSH:LWKRXWWKLVSURFHGXUHPDOIXQFWLRQRUIDLOXUHRIWKHLQGRRUXQLWEHFDXVHRI(OHFWURPDJQHWLF
,QWHUIHUHQFH(0,PD\RFFXU
D. When multiple indoor units are simultaneously controlled, set addresses for refrigerant cycle and indoor
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transmission abnormality may occur because of address duplication.
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F. Do not leave any spaces at the cable opening of the remote controller case. If there is any space, cover it
with vinyl tape to avoid trouble caused by condensate or insects entering the controller case.
NOTICE
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Page 668: ... 2015 Johnson Controls Inc TC 15001 rev 3 Code No LIT 12012244 Revised December 2016 ...