Manaras Opera-MH Installation Instructions Manual page 7

4.2 INSTALLATION OF OPERA OPERATOR
IMPORTANT NOTE: THIS OPERATOR MUST BE INSTALLED A MINIMUM OF 8 FT. (2.4 m) ABOVE FLOOR.
The OPERA has two sets of mounting holes: outside the frame for wall mounting and inside the frame for
hood mounting.
To open the control box cover, loosen the screw at the base of the cover. If the cover cannot be fully
opened, the retaining arm may be used to hold the cover in other positions (Figure 4).
Retaining
arm
After installation, verify that there is no obstacle in the way when opening the control box cover. If so, it is
possible to remove the cover by unscrewing it from the box before putting the operator on the wall or
hood (see Figure 5).
Remove the screw
Figure 5
Locate the four mounting holes. The optimum distance between the door shaft and operator drive shaft is
between 12" and 15". Mount the OPERA unit by fastening it to the wall, bench or hood with 3/8" or 1/2"
thru-bolts or if the wall is of such construction so as to prohibit use of thru-bolts, lag bolts and shields of
sufficient size may be used. Do not tighten.
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Figure 4
Control box cover opening
Unscrewing the cover from the control box
Remove the screw