LG ARNU363DDA4 Installation Manual page 12

UNIT INSTALLATION
Step 5�
When using the belimo actuator option, consult controls contractor regarding economizer
wiring requirements.
Step 6�
Remove the return air pan located at the bottom of the return air hood. Slide the return air
hood assembly into the LG Split RTU unit. Put the left side into the compartment first, and
slide the assembly into the compartment completely by sliding the left and right sides of
the assembly. Slide the power exhaust assembly into the LG Split RTU until the flanges on
the back of the power exhaust rests against the LG Split RTU. See Details No. 2 (previous
page), and Detail No. 3 (see figure at right).
If using the horizontal return option, keep the pan on the return air hood, and remove the horizontal return air panel from the power exhauster. Run
duct into this opening.
Step 7�
Remove supports used to prop the top of the LG Split RTU (Step 7).
The top of the LG Split RTU hooks over the top flange of the power
exhaust. See Detail No. 4.
Step 8�
Secure top of the power exhaust to the LG Split RTU by using
screws removed in Step 2. Also, screw along the side flanges of the
power exhaust using No. 12 x 1 screws provided with the power
exhaust package. See Detail No. 5.
Figure 11: Detail No. 5.
12
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.
Figure 9: Detail No. 3 .
Figure 10: Detail No. 4.
Figure 12: LG Split RTU with Installed Power Exhaust.