AAON ProFit WV Series, Installation Operation & Maintenance

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All units require field supplied electrical
overcurrent and short circuit protection.
Device must not be sized larger than the
Maximum Overcurrent Protection (MOP)
shown on the unit nameplate.
Codes may require a disconnect switch be
within sight of the unit.
A unit-mounted disconnect switch is
available as an option. It is important to note
that this is a method for convenient
maintenance of the unit, but does not provide
unit protection or isolation.
Electrical supply can enter through the side
of the controls compartment where
knockouts and/or capped pre-cut holes have
been provided. Entry must be made into one
each of these locations.
A single point connection to a definite
purpose contactor is provided on the control
panel, or to the unit-mounted disconnect
switch (if installed) on the corner panel. High
voltage conductors must enter the control
panel in a separate opening and separate
conduit than 24V low voltage conductors.
High voltage and low voltage openings are
nominally sized at 1-1/8” and 7/8”
respectively.
Note: Alternate locations for field cut
electrical entries must be approved by AAON
factory.
Size supply conductors based on the unit
Minimum Current Ampacity (MCA) rating.
Supply conductors must be rated a minimum
of 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.
Wire power leads to the unit’s contactor or
main disconnect. All wiring beyond this point
has been completed by AAON and cannot be
modified without effecting the unit’s
agency/safety certification.
Supply voltage must be within the min/max
range shown on the unit nameplate. Available
short circuit current must not exceed the short
circuit current rating (SCCR) shown on the
unit nameplate.
Voltage imbalance is defined as 100 times the
maximum deviation from the average voltage
divided by the average voltage. The
maximum allowable imbalance is 2%.
Example:
(221V+230V+227V)/3 = 226V, then
100*(226V-221V)/226V = 2.2%, which
exceeds the allowable imbalance.
Check voltage imbalance at the unit
disconnect switch and at the compressor
terminal. Contact your local power company
for line voltage corrections.
Installing Contractor is responsible for
proper sealing of the electrical entries
into the unit. Failure to seal the entries
may result in damage to the unit and
property.
Three phase voltage imbalance will
cause motor overheating and
premature failure.
CAUTION
CAUTION