18 | Piping installation
Installer and user reference guide
100
RXYSA8~12AMY1B
VRV 5-S system air conditioner
4P752782-1A – 2024.02
INFORMATION
▪ Punch out the knockout (a) in the bottom plate or cover plate by tapping on the
attachment points with a flat head screwdriver and a hammer.
▪ Optionally, cut out the slits (b) with a metal saw.
NOTICE
Precautions when making knockout holes:
▪ Avoid damaging the casing and underlying piping.
▪ After making the knockout holes, we recommend to remove the burrs and paint
the edges and areas around the edges using repair paint to prevent rusting.
▪ When passing electrical wiring through the knockout holes, wrap the wiring with
protective tape to prevent damage.
3 Do the following:
▪ Connect the liquid pipe (a) to the liquid stop valve. (brazing)
▪ Connect the gas pipe (b) to the gas stop valve. (brazing)