Controls Using Dc Analog Input/Output (Standard Low Voltage Multiconductor Wire); Dc Conductors - Trane Horizon OADG Series Installation, Operation And Maintenance Manual

NOTICE
Use Copper Conductors Only!
Failure to use copper conductors could result in
equipment damage as unit terminals are not designed
to accept other types of conductors.
Before installing any connecting wiring, refer to
p. 30 for the electrical access locations provided on the
unit and Table 6 for AC conductor sizing guidelines, and:
1. Use copper conductors unless otherwise specified.
2. Ensure that the AC control wiring between the controls
and the unit's termination point does not exceed three
(3) ohms/ conductor for the length of the run.
Note: Resistance in excess of 3 ohms per conductor
may cause component failure due to
insufficient AC voltage supply.
3. Be sure to check all loads and conductors for grounds,
shorts, and mis-wiring.
4. Do not run the AC low-voltage wiring in the same
conduit with the high-voltage power wiring.
Table 6. 24 Vac conductors
Distance from Unit to Control
000–460 feet
000–140 m
461–732 feet
104–223 m
Controls Using DC Analog Input/Output
(Standard Low Voltage Multiconductor
Wire)
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury. Disconnect all electric
power, including remote disconnects before servicing.
Follow proper lockout/tagout procedures to ensure the
power can not be inadvertently energized.
AVERTISSEMENT
Risque d'électrocution!
Le non-respect de cette consigne peut entraîner des
blessures graves, voire mortelles. Avant toute
intervention, coupez l'alimentation électrique, y
compris aux sectionneurs à distance. Suivez
scrupuleusement les procédures de verrouillage/mise
hors service préconisées pour empêcher tout
rétablissement accidentel de l'alimentation électrique.
Before installing any connecting wiring between the unit
and components utilizing a DC analog input\output signal,
OAU-SVX006C-EN
Figure 37,
Recommended Wire Size
18 gauge
2
0.75 mm
16 gauge
2
1 mm
refer to Figure 37, p. 30 for the electrical access locations
provided on the unit.
1. Table 7 lists the conductor sizing guidelines that must
be followed when interconnecting the DC binary
output devices and the system components utilizing a
DC analog input\output signal to the unit.
Note: Resistance in excess of 2.5 ohms per conductor
can cause deviations in the accuracy of the
controls.
2. Ensure that the wiring between controls and the unit's
termination point does not exceed 2.5 ohms/
conductor for the length of the run.
3. Do not run the electrical wires transporting DC signals
in or around conduit housing high voltage wires.

DC Conductors

Table 7. Zone sensor module wiring
Distance from Unit to Control
000–150 feet
0–45.7 m
151–240 feet
46–73.1 m
241–385 feet
73.5–117.3 m
386–610 feet
117.7–185.9 m
611–970 feet
186.2–295.7 m
Installation
Recommended Wire Size
22 gauge
2
0.33 mm
20 gauge
2
0.50 mm
18 gauge
2
0.75 mm
16 gauge
2
1.3 mm
14 gauge
2
2.0 mm
35