User`s manual
    EPN4122/4122i/4220/4220i 
19 
7.  Put on the supplied gloves before pushing upward the main body into the top housing. Make 
sure the red triangle on the inside of the top housing lines up with the red triangle on the 
outside of the main body. Push the main body upward into the top housing until the orange 
catches on both sides click into position.   
Top Housing
Main Body
Note:   
1.  To release the main body, press the two orange release buttons on both sides. Make sure 
you are holding the main body firmly, otherwise it will fall down. 
2.  To protect the glass dome from getting dirty and scraped up, please put on the supplied 
gloves before installing. 










