Can the cased coil with this unit be installed in horizontal position?

According to the units, The END4X42L17A is a up flow/down flow only coil. The EAM4X42L21A is a horizontal option but would require a transition to the furnace. We offer a multi positional coil that can be found here. As well as a furnace to coil transition that can be found here.

If you have any further questions, please call us and we will be happy to assist you.