No offence to this reply but i think you could have got it wrong. Installation can always be done but you will most likely not be able to use all 3 zones at one go as the AMPs if you are living in a HDB estate might not be sufficient. For best and accurate info, do consult your estate manager to give you an updated asseessment of the AMPs you have in your estate. Hope this help in clraifying. Critic.