Trane Voyager Commercial, Installation, Operation And Maintenance Manual

Page: 33 / 156

RT-SVX34R-EN 33
N NO OT TIIC CE E
C Co om mp po on ne en ntt F Fa aiillu urre e!!
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tth he e lle en ng gtth h o off tth he e rru un n..
Before installing any connecting wiring, refer to Table
15, p. 33 for conductor sizing guidelines and;
• Use copper conductors unless otherwise specified.
• Ensure that the AC control voltage wiring between
the controls and the unit's termination point does
not exceed three (3) ohms/conductor for the length
of the run.
• Refer to dimensional information beginning with
Figure 1, p. 14 for the electrical access locations
provided on the unit.
• Do not run the AC low voltage wiring in the same
conduit with the high voltage power supply wiring.
Be sure to check all loads and conductors for grounds,
shorts, and miswiring. After correcting any
discrepancies, reset the circuit breakers by pressing the
black button located on the left side of the transformer.
Table 15. AC conductors size
Distance from unit to
control
Recommended wire
size
000-460 feet
18 gauge
461-732 feet
16 gauge
733-1000 feet
14 gauge
Field Installed DC Control Wiring
W WA AR RN NIIN NG G
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N NO OT TIIC CE E
U Usse e C Co op pp pe err C Co on nd du ucctto orrss O On nlly y!!
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cco on nd du ucctto orrss..
Before installing the connecting wiring between the
components utilizing a DC analog output/input signal
and the unit, refer to
Table 16, p. 33 for conductor
sizing guidelines and;
• Use standard copper conductor thermostat wire
unless otherwise specified.
• Ensure that the wiring between the controls and the
unit's termination point does not exceed two and a
half (2-1/2) ohms/conductor for the length of the
run.
N No otte e:: Resistance in excess of 21/2 ohms per
conductor can cause deviations in the
accuracy of the controls.
• Refer to dimensional drawings beginning with
Figure 1, p. 14 for the electrical access locations
provided on the unit.
• Do not run the electrical wires transporting DC
signals in or around conduit housing high voltage
wires.
Table 16. DC conductors
Distance from unit to
control
Recommended wire
size
000-150 feet
22 gauge
151-240 feet
20 gauge
241-385 feet
18 gauge
386-610 feet
16 gauge
611-970 feet
14 gauge
Units equipped with the Trane Communication
Interface (TCI) option, which utilizes a serial
communication link;
IIn nsstta alllla attiio on n E Elle eccttrriicca all