INSTALLATION PROCEDURE— SMALL COVER
Other base frame installation options
4-1/3"
(110mm)
Option 5A (with stringer)
1. Remove all tabs on side of the base frame.
2. Fasten the base frame to stringer with 4 screws
(prepared on site).
Option 5B (for concrete wall)
1. Cut out a place for the cover into the wall.
2. Remove all tabs on side of the base frame
before installation.
3. Fix the base frame into place with mortar.
4. Secure the base frame with 4 screws
(prepared on site), if needed.
3/4"
(19mm)
4-1/3"
(110mm)
Max.1"(25mm)
Tab
Screws
Tab
Screws
11
Stringer
Min.1-3/8"(35mm)
Stringer
Stringer
Mortar