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Move the inner panel out to have 
access to the hidden edge of the 
inner glass panel. 

L410 Sounder Lock

PL801 -SOUND

4

5a

Slide strike plate over the edge of 
inner panel. Tighten screw. 

3

Open the outer panel fully. 

2

Fully close both glass panels and 
identify the inner glass panel. 

2

1

6

Fully close both glass panels. 

Hidden Edge 

Hidden Edge 

Inner Panel

Hidden Edge 

5b

If using the wide attachment strike 
plates (PL820-11 or PL820-21), 
tighten both screws.

2

1

1

Determine that the fixture meet the 
below specifications. if it does not, 

DO 

NOT MOUNT THE L410.

Glass 
Thickness:
4.8-8 mm

Glass Gap 
Range:
4.5-11.5 mm

Glass Overlap 
Range:
22-110 mm

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