AAON RQ NextGen Series, Installation Operation & Maintenance

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Remove fan access panel on the back side of
the unit. Panel is attached with eight 8 mm
(5/16”) bolts.
Figure 26 - 2-6 ton Supply Fan
Remove wire connections from motor. For
EC motors unplug the wire harness at the
control module that connects to the unit
control panel.
Through the blower access opening, remove
the two 8 mm (5/16”) bolts that connect the
blower assembly to the inlet wall (see Figure
26).
Figure 27 - RQ Supply Fan Removal Bolts
Through the coil access door, remove the two
8 mm (5/16”) bolts that connect the blower
assembly to the inlet wall from air entering
side of the wall (see Figure 26).
Slide blower assembly (wire frame motor
mount, motor, blower wheel, inlet, and sheet-
metal slide) out of unit through blower access
opening (see Figure 27).
Figure 28 - RQ Supply Fan Removal Slide
DX Cooling
Set unit controls to cooling mode of operation
with supply fans on. Check the fan for correct
operating direction, amperage and voltage.
Check compressor operation, rotation,
amperage and voltage to the unit nameplate
(check the amperage on the load side of the
compressor contactor).
Condensate Drain Pans
Drain pans will have moisture present and
require periodic cleaning to prevent
microbial growth. Cleaning of the drain pans
will also prevent any possible plugging of the
drain lines and overflow of the pan itself.
Cleaning of the drain pans and inside of the
unit must be done only by qualified service
technician.