Cable For Fc Buses And Sa Buses In Order Of Preference; Ignition Control Flash Codes - York ZV-06 Installation Manual

5567611-BIM-B-1218
Table 32: 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.
Table 33: Ignition control flash codes
Flashes
Steady on Control Failure
Heartbeat Normal Operation
1 Not Applicable
2 Pressure Switch Stuck Closed
3 Pressure Switch Failed To Close
4 Limit Switch Open
Flame Present With Gas Off First Stage Gas Valve
5 Energized With W1 Off Second Stage Gas Valve
Energized With First Stage Gas Valve Off
6 Ignition Lockout
No Power Or Control
Steady off
Failure
76
Non-plenum applications
Part number
Anixter:
1
CBL-22/3-FC-PVC
Belden®: B5501FE
Anixter:
CBL-22/2P-SA-PVC
Belden: B5541FE
—
2
Belden: B5501UE
Belden: B5541UE
Fault conditions
Plenum applications
O.D. Part number
Anixter: CBL-22/3-FC-PLN
0.138 in.
Belden: B6501FE
Anixter: CBL-22/2P-SA-PLN
0.209 in.
Belden: B6541FE
Anixter preassembled: CBL-
NETWORK25 CBL-
— NETWORK50 CBL-
NETWORK75 CBL-
NETWORK100
0.135 in. Belden: B6501UE
0.206 in. Belden: B6541UE
Check
Control
Pressure Switch
Venter Pressure Switch Vent Blocked
Main Limit
AUX Limit
Gas Valve
Gas Flow Gas Pressure Gas Valve Flame Sensor
24VAC or Control
Johnson Controls Ducted Systems
O.D.
0.140 in.
0.206 in.
0.15 in.
0.131 in.
0.199 in.