Field Installed Dc Control Wiring - Trane Voyager Commercial Installation & Operation Manual

Installation Electrical

Field Installed DC Control Wiring

Proper Field Wiring and Grounding Required!
All field wiring MUST be performed by qualified personnel. Improperly installed and grounded
field wiring poses FIRE and ELECTROCUTION hazards. To avoid these hazards, you MUST follow
requirements for field wiring installation and grounding as described in NEC and your local/
state electrical codes. Failure to follow code could result in death or serious injury.
NOTICE:
Use Copper Conductors Only!
Unit terminals are not designed to accept other types of conductors. Failure to use copper
conductors may result in equipment damage.
Before installing the connecting wiring between the components utilizing a DC analog output/input
signal and the unit, refer to
Note: Resistance in excess of 21/2 ohms per conductor can cause deviations in the accuracy of the
Table 13. DC Conductors
Distance from unit to control
000-150 feet
151-240 feet
241-385 feet
386-610 feet
611-970 feet
Units equipped with the Trane Communication Interface (TCI) option, which utilizes a serial
communication link;
38
WARNING
Table 13, p. 38
• 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.
controls.
• Refer to dimensional drawings beginning with
locations provided on the unit.
• Do not run the electrical wires transporting DC signals in or around conduit housing high
voltage wires.
• Must be 18 AWG shielded twisted pair cable Belden 8760 or equivalent).
• Must not exceed 5,000 feet maximum for each link.
• Must not pass between buildings.
for conductor sizing guidelines and;
Figure 1, p. 17
Recommended wire size
22 gauge
20 gauge
18 gauge
16 gauge
14 gauge
for the electrical access
RT-SVX34C-EN