Johnson Controls HIDH018B21S, Engineering Manual

Page: 336 / 668

CONTROL SYSTEM
6-20
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127(6 (Controller Cable):
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2
) to AWG 18(0.82mm
2
) cable for connection. The maximum total cable length is 98
ft. 4-13/16 in. (30m). If the total cable length exceeds 98 ft. 4-13/16 in. (30m), use a shielded communication
cable (1P - AWG 18 (0.82mm
2
)). Communication cabling shall be a minimum of 18-Gauge, 2-Conductor,
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other sources of potentially excessive electrical noise to reduce the potential for 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.
In this case, the maximum total cable length is 1,640 ft. 6 in. (500m).
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communication cables) and power source of the indoor units.
If not, the air-conditioner may not operate properly or malfunction may occur due to effect of power source
noise.
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units without overlapping.
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the controller and indoor units for setting the system number and the indoor unit address.
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cover the gap with vinyl tape.
If the gap is not covered, a malfunction may occur because of water droplets or insects.
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using the appropriate function with the controllers.
After setting, turn off the power supply of all the indoor units connected to the controllers.
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Controller Cable
H-LINK Cable
Wireless
Controller
Outdoor
Unit
Indoor Unit
IR Receiver
Wired Controller
EMERGENCY
COOL HEAT
RUN FILTER DEF TIMER
127(6 (System)
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Controller (CIW01 or CIS01).
*1 If the system has “one IR Receiver and one Wired
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Primary, and the IR Receiver set as Secondary.
*2 Indoor Unit (Wall Mount type) can’t connect using the
Wired Controller (CIW01 or CIS01).