Impecca ISAH-1220A1/I Mode D'emploi page 15

STEP 3: OPEN THE PIPING HOLE
Choose the position of the piping hole according to the direction of the exhaust pipe. The
position should be slightly lower than the wall mounted frame, as indicated below.
Wall
Mark in the middle of it
Space
to the
wall
above
150mm
Left
Φ70mm
Rear piping hole
1. Open the piping hole with a diameter of 55 or 70cm depending on the select-
ed outlet pipe position (check corresponding table in outdoor unit installation
guide). In order to ensure proper draining, slant the piping hole downwards to-
ward the exterior by 5 to 10°
2. Pay attention to dust particles and take appropriate safety measures when open-
ing the hole.
Indoor
5-10
–13–
Level meter
Rear piping hole
outdoor
Φ55/
Φ70
Wall
Space
to the
wall
above
150mm
Right
Φ70mm