FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE5140418-YTS-A-0615WIRING DIAGRAMS DescriptionYORK ® ZE/ZF/ZR/XN/XP Series units are convertible singlepackage high efficiency rooftops with a common roof curb forthe 3, 4, 5 and 6 Ton sizes (ZE, ZR, XN, XP not available in 6Ton). Although the units are primarily designed for curbmounting on a roof, they can also be slab-mounted at groundlevel or set on steel beams above a finished roof.All ZE/ZF/ZR/XN/XP Series units are self-contained andassembled on rigid full perimeter base rails allowing foroverhead rigging. Every unit is completely charged, wired,piped and tested at the factory to provide a quick and easy fieldinstallation.All models (including those with an economizer) are convertiblebetween bottom and horizontal duct connections.ZE/ZF/ZR Series units are available in the followingconfigurations: cooling only, cooling with electric heat, andcooling with one or two stage gas heat. Electric heaters areavailable as factory-installed option or field installed accessory.XN/XP Series units are available in the following configurations:cooling and heating only and cooling and heating with electricheat.Tested in accordance with:R-410AZE/ZF/ZR/XN/XP SERIES3 - 6 TON60 Hertz