AAON V3-A Installation, Operation & Maintenance Instructions Manual page 5

V3 series vertical indoor air handling units
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Figure 15 - Hot & Chilled Water Piping ....................................................................................... 28
Figure 16 - TXV Bulb Position ..................................................................................................... 29
Figure 17 - Hot Gas Purge Circuit ................................................................................................ 30
Figure 18 - Energy Recovery Wheel ............................................................................................ 30
Figure 19 - Cross Section of Air Seal Structure ........................................................................... 31
Figure 20 - Lifting Hole Locations ............................................................................................... 32
Figure 21 - Avoid Racking of Cassette Frame .............................................................................. 34
Figure 22 - Diameter Seal Adjustment ......................................................................................... 34
Figure 23 - Hub Seal Adjustment ................................................................................................. 35
Figure 24 - Segment Retainer ....................................................................................................... 35
Figure 25 - Segment Installation ................................................................................................... 35
Figure 26 - Belt Replacement ....................................................................................................... 37
Figure 27 - External control box electrical connections ............................................................... 38
Figure 28 - V3 internal control panel electrical connections ........................................................ 38
Figure 29 - Gas Heat Condensate Trap ......................................................................................... 41
Figure 30 - Condensate Neutralizer Kit ........................................................................................ 42
Figure 31 - Open Combustion Venting ......................................................................................... 44
Figure 32 - Separated Combustion Venting .................................................................................. 45
Figure 33 - Sediment Trap for Gas Heat ....................................................................................... 48
Figure 34 - Typical wiring diagram with EC motor ..................................................................... 50
Figure 36 - Potentiometer ............................................................................................................. 51
Figure 37 - Gas Heater Instructions .............................................................................................. 55
Figure 38 - Gas Control Switch .................................................................................................... 56
Figure 39 - Natural Gas Flame...................................................................................................... 57
Figure 40 - Propane Gas Flame .................................................................................................... 57
Figure 41 - Flame Sensor Current Check ..................................................................................... 60
Figure 42 - Ignition Control Module ............................................................................................ 61
Figure 43 - Safety Switches .......................................................................................................... 61
Figure 44 - Rollout Switch ............................................................................................................ 61
Figure 45 - High Limit Switch in Air Stream ............................................................................... 62
Figure 46 - High Limit Switch on Fan Housing ........................................................................... 62
G014420 · Rev. A · 180813
(ACP J01398)
5

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