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Electrical
The single point electrical power connections are made in the electrical control compartment.
Verify the unit nameplate agrees with the power supply. Connect power and control field wiring as
shown on the unit wiring diagram provided with the unit.
Table 4 - Nameplate Voltage Markings & Tolerances
Notes:
1. Operating voltage is the min and max voltage for which the unit can function. Never
operate outside of this min and max voltage.
2. The Acceptable Performance Range is the min and max voltage for which the unit
performance is designed and rated to give acceptable performance.
Route power and control wiring, separately,
through the utility entry. Do not run power and
signal wires in the same conduit.
Size supply conductors based on the unit MCA
rating. Supply conductors must be rated a
minimum of 167°F (75°C).
Protect the branch circuit in accordance with code
requirements. The unit must be electrically
grounded in accordance with local codes, or in the
absence of local codes, the current National
Electric Code, ANSI/NFPA 70 or the current
Canadian Electrical Code CSA C22.1.
NOTE: Units are factory wired for 208V, 230V,
460V, or 575V. In some units, the 208V and 230V
options may also be provided in single or three
phase configurations. The transformer
configuration must be checked by a qualified
technician prior to startup.
Electric shock hazard. Before
attempting to perform any installation,
service, or maintenance, shut off all
electrical power to the unit at the
disconnect switches. Unit may have
multiple power supplies. Failure to
disconnect power could result in
dangerous operation, serious injury,
death or property damage.
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