York SUNLINE PLUS D1EE036 Technical Manual

036-21411-002-A-0204Unitary Products Group 3DESCRIPTIONYORK Sunline Plus™ units are high efficiency, convertible,single package air conditioners with a common cabinet and acommon roof curb for the 3, 4 and 5 ton sizes. The units weredesigned for light commercial and commercial applications.They can easily be installed on a roof curb, slab, roof jack orframe.All units are self--contained and assembled on rigid fullperimeter base rails with fork lift slots on three sides andholes for overhead rigging. Every unit is completely piped,wired, charged and tested at the factory to provide for a quickand easy field installation.The units are available in cooling only, and cooling with gasheat. Electric heaters are available as field--installed acces-sories.Both bottom and side duct connections are available withouthaving to swap panels. The installer simply removes the ductcovers for the desired configuration. Economizers may beused on either bottom and side duct applications with nomodifications required.All models include a 5--year limited warranty on compres-sors, a 10--year limited warranty on gas--fired heat exchang-ers and a 1--year limited warranty on other parts.FEATURESCOMMON FOOTPRINT/COMMON CABINET -- All modelsizes and configurations share a common cabinet and a com-mon roof curb. The installer has the flexibility of setting onecurb and placing the proper tonnage unit on that curb afterthe internal load has been determined. He can even decidebetween gas or electric heat after the curb has been set.HIGH EFFICIENCY -- All units have a high cooling efficiencyof at least 11.0 SEER and gas / electric models have anAFUE as high as 80.9%. All efficiencies exceed legislatedminimum levels and provide low operating costs.CONVERTIBLE AIRFLOW DESIGN -- Both the side and bot-tom duct openings are covered when they leave the factory. Ifa side supply / side return is desired, you simply remove thetwo side duct covers from the outside of the unit and discardthem. If a bottom supply / bottom return is desired, you simplyremove the two knockout panels from the base of the unit anddiscard them. No panel cutting or swapping is required! Con-vertible airflow design allows maximum field flexibility andminimum inventory.FACTORY--INSTALLED OPTIONS -- Economizers can beinstalled at the factory. The economizers are shippedinstalled and wired. Only the rain hood needs to be fieldassembled and installed. Field labor dollars can be saved byhaving the components arrive already installed.Adjustable belt drive blowers are available on all models fromthe factory for complete airflow flexibility.FIELD--INSTALLED ACCESSORIES -- Accessories weredesigned for quick and easy installation. The motorizeddamper and economizers simply slide in, and electrical con-nections are made by modular plugs. Electric heaters mounteasily, and knockouts are provided in the internal partitions toconnect the elements to the control box single point kit.The motorized air damper includes a slid--in/plug--in damperassembly with a rainhood and filters. The outdoor air damp-ers open when the indoor fan motor is energized. Thedamper is capable of providing 0% through 100% of outdoorreturn air opening.The manual outdoor damper provides 0% through 35% or 0%through 100% of return air opening (field adjustable).Designed for duct mounted side or bottom supply/returnapplications. Includes rain hood assembly and filter.The 14" high roof curb is shipped knocked down. An insu-lated deck is not required because the bottom of the unit isinsulated.Low ambient controls are available to provide stable unitoperation at outdoor temperatures down to 0 ºF.Propane, high altitude and low NOx kits are also available tocover all gas heating applications.WIDE RANGE OF INDOOR AIRFLOWS -- All models oper-ate over a wide range of design conditions with a 3--speeddirect--drive fan motor. Belt--drive blowers are also availableon all models.FULL PERIMETER BASE RAILS -- The permanentlyattached base rails provide a solid foundation for the entireunit and protect the unit during shipment. The rails providefork lift access from 3 sides, and rigging holes are also pro-vided so that an overhead crane can be used to place theunits on a roof.SYSTEM PROTECTION -- Internal overload protection isstandard on all compressors. Every unit has a liquid line filter--drier, high and low pressure/loss of charge switches and asuction line freezestat to protect all system components. Allunits will provide cooling at ambient temperatures down to 45ºF.UTILITY CONNECTIONS MADE EASY -- Gas and electricutility knockouts are provided in the unit base as well as theside of the unit. A clearly identified location is provided tomount a field supplied electrical disconnect switch. Utilityconnections can be made quickly and with a minimumamount of field labor.SIMPLE CONTROL CIRCUIT -- A low voltage printed circuitboard contains a compressor lockout indicator light and a low