Vertical Downflow Installation - LG LV181HV4 Installation Manual

Configuring the VAHU for Vertical Downflow Installation
The 4-way Vertical Air Handling Unit is factory ready for vertical up or horizontal left installation. Ver-
tical down installation requires field reconfiguration of the indoor unit. For vertical down, the downflow
conversion kit is required.
Downflow kit PNDFJ0 is required for 18-24MBH NJ chassis units and downflow kit PNDFK0 is required
for 36-48MBH NK chassis units.
1. Remove front panels and supports. Retain all except bottom front panel. Bottom front panel is
replaced by a panel in the kit (Figure 16).
2. Remove pipe in and out sensors and temporarily store in the blower section (Figure 17).
3. Carefully slide the evaporator coil/drain pan assembly out of the cabinet (Figure 18).
apply excessive force on the piping as it may result in refrigerant leaks.
4. Remove the horizontal drain pan from the assembly. Field scrap the drain pan.
5. Rotate the VAHU cabinet 180º (Figure 19).
Figure 16: Remove Front Panels and Supports.
Figure 18: Evaporator Coil/ Drain Pan Assembly.
Horizontal
Drain Pan
GENERAL INSTALLATION GUIDELINES
Field scrap panel
Due to our policy of continuous product innovation, some specifications may change without notification.
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Vertical Downflow Installation

Do not
Figure 17: Sensors and Wiring.
Figure 19: Rotate Cabinet.
Pipe In/Out
Sensors and
Wiring
Rotated
180°
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