Installation of home air conditioning through the wall of the hole diameter is generally in 6 to 10cm, air conditioning inside and outside the machine two connecting copper pipe plus a condensate drain, copper pipe outside the insulation layer, the three pipes through the hole, the hole basically will not be too much of the remaining gap.
Air conditioning manufacturers each air conditioner in the factory are randomly attached to the sealing mud, after the installation of air conditioning, if the hole remaining gap is too large, you can use the randomly attached mud to properly seal the process.
Installers' income is relatively low, the general installation of a home wall-mounted air conditioning to get the money is only about 40 yuan, directly to the installer to deal with if ineffective, it is recommended to complain to the air conditioning manufacturer's after-sales service, so that they deal with it; do not look for air-conditioning merchants to look for air-conditioning manufacturers to complain to the after-sales service department.