36 
11.2.2  To Drill a Hole in the Wall and 
Install a Sleeve of Piping 
1  Insert the piping sleeve to the hole. 
2  Fix the bushing to the sleeve. 
3  Cut the sleeve until it extrudes about 15 mm 
from the wall. 
 
 CAUTION
 
  
   When the wall is hollow, please be sure to use the
  sleeve for tube assembly to prevent dangers 
  caused by mice biting the connection cable. 
 
4  Finish by sealing the sleeve with putty or 
caulking compound at the final stage. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Putty or caulking compound
Sleeve for 
tube assembly
Approx. 5 - 7 mm
Bushing for tube assembly
Wall
ø70 mm 
through hole
Indoor
Outdoor