AAON RL-240 - Manual (Page 31)

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Figure 10 - Factory Supplied End Flashings
Vestibule Exhaust Fan
Prior to unit operation of units with service
vestibules the exhaust fan shipping support
must be removed from the exterior of the
unit
The exhaust fan also includes a factory
provide exterior rain hood which must be
installed.
Figure 11 - Vestibule Exhaust Fan
Electrical
Verify the unit nameplate agrees with power
supply. Connect power and control field
wiring as shown on the unit specific wiring
diagram provided laminated and attached to
the door in the controls compartment.
Route power and control wiring, separately,
through the utility entry in the base of the
unit. 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.
Wire power leads to the unit’s terminal
block or main disconnect. All wiring beyond
this
point has completed by the
manufacturer and cannot be modified
without effecting the unit’s agency/safety
certification.
In order to prevent water leakage into
the roof curb, the factory provided
sheet metal flashings MUST BE
attached to the unit base to cover the
shipping slots at both ends of the
unit.
CAUTION
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.
WARNING
Installing Contractor is responsible
for proper sealing of the electrical
and gas entries into the unit Failure
to seal the entries may result in
damage to the unit and property.
CAUTION