York International ZQ Series Installation Manual page 61

Table 54: Smart Equipment™ UCB - LEDs
Location Label
POWER Green UCB power indicator
Red hard lockout, networking error and firmware error
FAULT
N indicator
SA BUS Green UCB SA bus communication transmission indicator
Table 55: Smart Equipment™ UCB - optional communication sub-board
Location Label
FC+ FC ("Field Connected") BUS BACnet MSTP communication
FC– FC ("Field Connected") BUS BACnet MSTP communication
O
Terminal FC BUS
Common for the FC ("Field Connected") BUS BACnet MSTP
connections
COM
communication circuit
Shield for the FC ("Field Connected") BUS BACnet MSTP
SHLD
communication circuit
End Of Line selector switch for the FC BUS BACnet MSTP
Q EOL switch
communication circuit
EOL Green End Of Line indicator
P
FC BUS Green FC bus communication transmission indicator
R ISO PWR Green communication board Isolated Power indicator
Table 56: Cable for FC Buses and SA Buses in Order of Preference
Bus and Cable Type
FC Bus: 22 AWG Stranded, 3-Wire Twisted Shielded Cable
SA Bus (Terminal Block): 22 AWG Stranded, 4-Wire, 2 Twisted-Pair Shielded Cable
SA Bus (Modular Jack):
26 AWG Solid 6-Wire, 3 Twisted-Pair Cable
FC Bus: 22 AWG Stranded, 3-Wire Twisted Non-Shielded Cable
SA Bus (Terminal Block): 22 AWG Stranded, 4-Wire, 2 Twisted-Pair Non-Shielded
Cable
1 We strongly recommend 3-wire (for FC bus) and 4-wire, 2 twisted-pair (for SA bus), 22 AWG stranded, shielded cable. A 22 gauge
cable offers the best performance for various baud rates, cable distances, and number of trunk devices primarily due to lower
conductor-to-conductor capacitance. Shielded cable offers better overall electrical noise immunity than non-shielded cable.
Observe the shield grounding requirements.
2 We recommend 26 AWG solid, 6-wire (3 twisted pairs) cable as the best fit for fabricating modular cables with the modular jack
housing assembly. Be sure the cable you use fits the modular jack housing. The preassembled cables that are available from
Anixter (Part No. CBL-NETWORKxxx) use 24 gauge wire.
Description
Description
1
2
Johnson Controls Ducted Systems
Function and comments
Lit indicates 24 VAC is present at C and 24 V terminals
1/2 second on/off flashing indicates one or more alarm is currently active, 1/10th second
on/off flashing indicates a networking error (polarity, addressing, etc.) or a firmware error
(likely correctable with re-loading from USB flash drive)
Lit/flickering indicates UCB SA bus communication is currently active, off indicates the
UCB is awaiting SA bus communication
Positive of the VDC (typically, a fluctuating 1.5 to 3.5 V reading to COM; at least 0.25
V higher than –) FC bus BACnet MSTP communication circuit
Positive of the VDC (typically, a fluctuating 1.5 to 3.5 V reading to COM; at least 0.25
V lower than +) FC bus BACnet MSTP communication circuit
Negative of the VDC FC bus BACnet MSTP communication circuit
Earth ground reference of the cable to prevent interference on the FC bus BACnet
MSTP communication circuit
ON selected only for the UCB that is the terminus of the FC bus BACnet MSTP
communication cable to prevent signal "bounce-back"
Lit indicates the EOL switch is selected ON
Lit/flickering indicates outgoing UCB FC bus communication is currently active, off
indicates the UCB is awaiting incoming FC bus communication
Lit indicates the UCB is supplying power to the communication sub-board
Non-Plenum Applications
Part Number O.D.
Anixter:
CBL-22/3-FC-PVC 0.138 in.
Belden : B5501FE
®
Anixter:
CBL-22/2P-SA-PVC 0.209 in.
Belden: B5541FE
— —
Belden: B5501UE 0.135 in.
Belden: B5541UE 0.206 in.
INSTALLATION MANUAL ZQ SERIES 3 - 5 ton 60 Hertz R-410A
Function and comments
Plenum Applications
Part Number
Anixter: CBL-22/3-FC-PLN Belden:
B6501FE
Anixter: CBL-22/2P-SA-PLN
Belden: B6541FE
Anixter preassembled: CBL-
NETWORK25 CBL-NETWORK50 CBL-
NETWORK75 CBL-NETWORK100
Belden: B6501UE
Belden: B6541UE
O.D.
0.140 in.
0.206 in.
0.15 in.
0.131 in.
0.199 in.
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