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 15 - Nameplate Voltage Markings & Tolerances
Hz
Nameplate
Voltage
Nominal
System
Voltage
1
Acceptable
Performance Range
2
Min Max Min Max
60
50
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 75°C (167°F).
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
Elect
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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