Utilitech 7115-02-BN Manual page 8

EXISTING CONSTRUCTION INSTALLATION INSTRUCTIONS (Continued)
1. Remove existing fan.
2. Measure the opening to ensure it is large enough to
accommodate the 7-1/2 in. x 7-1/4 in. dimensions of
the new fan housing (A).
3. If this fan is not replacing an old fan, be sure to cut
a 7-3/4 in. x 7-1/2 in. opening for the fan housing.
Make sure the 7-1/2 in. side of the opening is flush
with the joist for installation from below.
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