i have 4 hitachi units bought at different points of times through different channels and i faced installation read horriblemessed up installtion for all the units and one of them ended up with gas leak at the joint and another gave water leakage in wall spoiling entire woodwork and now this unit was installed in a very uniquiely stupid way where main wire had to be extened with joints for both units when there was abundant space to place unit anywhere gave a feed back to installation team they havent got back yet

Hitachi fails misreably is service support and installation