Main Power Wiring; Thru-The-Base Electrical (Optional Accessory) - Trane Voyager Commercial Installation & Operation Manual

Installation Electrical

Main Power 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 codes could result in death or serious injury.
1.
2. If the unit is not equipped with an optional factory installed Nonfused disconnect switch, a field
Note: When the factory installed through-the-base option is not used, the installing contractor is
3. Provide proper grounding for the unit in accordance with local and national codes.

Thru-the-Base Electrical (Optional Accessory)

Liquid-tite conduit couplings are secured to the base of the unit for both power and control wiring.
Liquid-tite conduit must be field installed between the couplings and the unit control box to prevent
water leaks into the building.
Note: If the unit is set on the roof curb and temporary auxiliary heat is provided in the building,
30
WARNING
Table 7, p. 32 and Table 9, p. 34
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
Wire Sizing and Protection Device Equations" on page 35
a. The appropriate electrical service wire size based on "Minimum Circuit Ampacity" (MCA),
b. The "Maximum Over current Protection" (MOP) device.
c. The "Recommended Dual Element fuse size" (RDE).
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
Protection Device Equations" on page 35
Location for the electrical service entrance is shown in the unit dimensional drawings
beginning with Figure 1, p.
main terminal block HTB1, or the factory mounted nonfused disconnect switch inside the unit
control panel.
required to seal any holes made in the base of the unit to prevent water from leaking into
the building.
it is recommended that the electrical and control wiring conduit opening in the control box
be temporarily sealed to provide a vapor barrier.
list the electrical data. The electrical service must be protected
for determining correct size.
17. Complete the unit's power wiring connections onto either the
"Electrical
for determining:
"Electrical Wire Sizing and
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