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Calix ODC-120 Installation Guide
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© 2005 Calix. All Rights Reserved.
10.2.2 Top Fan Replacement
Step 1:
Disconnect power to the fan to be replaced. Verify that power is off before
proceeding.
Step 2:
Top fans are accessed through a top cap in the solar shield. To remove and replace
one of the top fans, use a 216-type tool to remove the bolts securing the top cap of
the fan to be replaced (Fig. 34). Lift the top cap and set it aside for later
reattachment.
Step 3:
Remove the six bolts from the interior fan mounting plate (Fig. 35). Set the
hardware aside for reuse later. Note: extra screws are supplied in case screws are
misplaced. The top fan is attached to this plate.
Step 4:
Pull out the harness assembly under the frame and disconnect the power plug and
remove the fan plate assembly (Fig. 36).
Step 5:
Remove the old fan assembly (Fig. 37). To install the new fan-plate assembly, place
the new inner fan-plate over the appropriate fan opening.
Step 6:
Secure the interior fan-mount plate assembly using the hardware set aside in Step 3.
Tighten all bolts.
Fig. 34 : Removing Top Fan Cover
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