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Step 4

Place the Coverage Unit

Plug the Coverage unit in and wait until the numeric 

display stops cycling, this could take several minutes. At 

this point you should see a green icon 

indicating that the unit is working prop-

erly. it is possible to place the Coverage 

Unit so far away that it cannot commu-

nicate with the Window Unit. 

If this happens, a red icon will illuminate 

indicating that you need to move the 

Coverage Unit closer to the Window 

unit.

TOO CLOSE

A zero on the numeric 
display indicates that 
the “Coverage Unit” 
needs to be moved 
farther away from the 
“Window Unit”.

GOOD

This green icon indicates 
that the “Coverage Unit” 
is functioning normally.

TOO FAR

This red icon indicates that 
the “Coverage Unit” needs 
to be moved closer to the 
“Window Unit”.

Step 3

 

Optimize The Window Unit Placement

The number of bars you can see on the Window Unit 

make a significant difference in the operation of the Cel-

Fi system. Try moving the Window Unit to a couple of dif-

ferent spots to see if you can get better signal; the more 

bars the better. 

Step 5

Optimize The Coverage Unit Placement

The farther away you place the coverage unit from the Window unit the better the better the coverage in your home, 

so put the Coverage Unit as far away from the Window Unit as possible  The number shown on the side of the display 

gives you an indication as to the quality of the placement. Test two or three locations and for best results; try and get a 

7, 8 or 9 on the display.

WINDOW UNIT

COVERAGE UNIT

4Gon   www.4Gon.co.uk   [email protected]   Tel: +44 (0)1245 808295   Fax: +44 (0)1245 808299 

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