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EXCEL 10 FCU CONTROLLER LNS PLUG-INS USER GUIDE
EN2B-0285GE51 R0909
20
Table 10. Field wiring reference table (US part numbers shown)
wire
function
recommended
min. wire size
AWG (mm
2
)
construction
specification
or
requirement
vendor wire type max. length ft (m)
LONWORKS
(plenum)
14 to 20 AWG
(2.0 to 0.5 mm
2
)
twisted pair solid
conductor, non-shielded.
Level IV 140°F
(60°C) rating
Honeywell (US)
AK3791 (one twisted pair)
AK3792 (two twisted pairs)
(Europe: Belden
9H2201504)
See Step 2
LONWORKS
(non-
plenum)*
14 to 20 AWG
(2.0 to 0.5 mm
2
)
twisted pair solid
conductor, non-shielded.
Level IV 140°F
(60°C) rating
Honeywell (US)
AK3781 (one twisted pair)
AK3782 (two twisted pairs)
(Europe: Belden
9D220150)
See Step 2
input
wiring,
sensors,
contacts
14 to 20 AWG
(2.0 to 0.5 mm
2
)
multi-conductor (usually
five-wire cable bundle); for
runs >100 ft (30 m),
twisted pair or shielded
cable is recommended.
140°F (60°C)
rating
Standard thermostat wire 82.5 ft (25 m)
output
wiring,
actuators,
relays
14 to 20 AWG
(2.0 to 0.5 mm
2
)
20 AWG (0.5 mm
2
)
acceptable for
short runs
any pair non-shielded (use
heavier wire for longer
runs).
NEC Class 2
140°F (60°C)
rating
Honeywell (US)
AK3702 (18 AWG)
AK3712 (16 AWG)
AK3754 (14 AWG)
or equivalent
200 ft (60 m)
power
wiring
14 to 20 AWG
(2.0 to 0.5 mm
2
)
any pair non-shielded (use
heavier wire for longer
runs).
NEC Class 2
140°F (60°C)
rating
Honeywell (US)
AK3754 (14 AWG)
(twisted pair)
AK3909 (14 AWG) single
conductor or equivalent
Limited by line loss
effects on power
consumption.
(See Line Loss
subsection.)
NOTE: PVC wire must not be used where prohibited by local fire regulations.