C4H5,C4H7, H4H5, H4H7, T4H5, T4H7 Two Stage Mainline R410A 15 & 17 Seer HP Technical Support Manual C4H5,C4H7, H4H5, H4H7, T4H5, T4H7 Two Stage Mainline R410A 15 & 17 Seer HP Technical Support Manual