AAON V3-E - Manual (Page 22)

22
Lifting and Handling the Unit
Before lifting unit, be sure that all shipping
material has been removed from unit.
Care should be taken if using spreader bars,
blocking or other lifting devices to prevent
damage to the cabinet, coil or fans.
Electrical
Verify the unit name plate agrees with
power supply. H3 and V3 Series units are
provided with single point power wiring
connections. Connection terminations are
made to the main terminal block. A
complete set of unit specific wiring
diagrams, showing factory and field wiring
are laminated in plastic and located inside
the control compartment door.
Route power and control wiring, separately,
through the utility entry in the unit. Do not
run power and control signal wires in the
same conduit.
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.
It is recommended that the field installed
overcurrent protection or disconnect switch
not be installed on the unit.
Electrical supply can enter through the
bottom or side of the controls compartment.
A single point connection to a terminal
block is provided. High voltage conductors
should enter the control panel in a separate
opening and separate conduit than low
voltage conductors.
To pass wires through the wall or roof of the
unit, a hole should be cut and conduit passed
through it. Use the following procedure to
cut a round hole in a foam panel.
Cutting Electrical Openings
1. Locate the placement of the hole. Be sure
that the conduit will not interfere with the
operation of any component or prevent
access of any door or removable panel.
Field cut openings must be a minimum of 6
UNIT HANDLING
Incorrect lifting can cause damage to
the unit, injury or death. Lifting
equipment capacity should exceed
unit weight by an adequate safety
factor. Always test lift unit not more
than 24 inches high to verify proper
center of gravity lift point.
WARNING
The foam insulation releases
dangerous fumes when it is burnt. Do
not cut a foam part with a cutting
torch or plasma cutter. Do not weld to
a foam filled part.
WARNING
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