if you are install the aircon for your home, please hire the professional to install the air conditioner. if you choose the unprofessional Aircon installer, they might be install the wrong manner else damage the pipe and product. we are professional aircon installer, we are certified company for aircon installtion and service. coolcare 5+ years of experience in air conditioner industry, our engineers all are experienced professionals. we support all branded air conditioner with 1 year workmanship warranty.