Trane is pleased to announce new, expanded system ratings for the 4MXC aluminum cased multi-positional coil. The 4MXC coil ratings have been expanded to include Trane XR13, XR14, XR16, XR16 low profile, XL16i, XR17, and XL18i families. These rating expansions allow you to offer extended solutions when utilizing a 4MXC coil.