Trane Voyager Commercial, Installation, Operation And Maintenance Manual

Page: 27 / 156

RT-SVX34R-EN 27
• , p. 28 to Table 14, p. 31 list the electrical service
sizing data. The electrical service must be protected
from over current and short circuit conditions in
accordance with NEC requirements. Protection
devices must be sized according to the electrical
data on the nameplate. Refer to
“Electrical Wire
Sizing and Protection Device Equations,” p. 31 for
determining:
–
The appropriate electrical service wire size
based on “Minimum Circuit Ampacity” (MCA),
– The “Maximum Over current Protection” (MOP)
device.
– The “Recommended Dual Element fuse size”
(RDE).
• If the unit is not equipped with an optional factory
installed Nonfused disconnect switch, a field
supplied disconnect switch must be installed at or
near the unit in accordance with the National
Electrical Code (NEC latest edition). Refer to DSS
calculations
“Electrical Wire Sizing and Protection
Device Equations,” p. 31 for determining correct
size.
Location for the electrical service entrance is
shown in the unit dimensional drawings
beginning with
Figure 1, p. 14 . Complete the
unit's power wiring connections onto either the
main terminal block HTB1, or the factory
mounted nonfused disconnect switch inside the
unit control panel.
N No otte e:: When the factory installed through-the-base
option is not used, the installing contractor is
required to seal any holes made in the base
of the unit to prevent water from leaking into
the building.
• Provide proper grounding for the unit in accordance
with local and national codes.
Figure 20. Typical field power wiring
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