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TRANE* <br /> Controls <br /> ReliaTell" Controlled Units <br /> Zone Sensors are the building occupant's comfort control devices.The following zone sensor <br /> options are available for PrecedentT"' Rooftop units with ReliaTeITI control: <br /> Differential Enthalpy <br /> Differential Enthalpy replaces the standard dry bulb control with two enthalpy sensors that <br /> compare total heat content of the indoor air and outdoor air to determine the most efficient air <br /> source.This control option offers the highest level of comfort control, plus energy efficiency, <br /> available. <br /> Differential Pressure Switches <br /> This factory or field-installed option allows individual fan failure and dirty filter indication.The fan <br /> failure switch will disable all unitfunctions and"flash"the Service LED on the zone sensor.The dirty <br /> filter switch will light the Service LED on the zone sensor and will allow continued unit operation. <br /> Manual Changeover Manual/Automatic Manual/Automatic <br /> Changeover Changeover <br /> Heat, Cool or Off System Auto,Heat,Cool or Off System Auto,Heat,Cool or Off System <br /> Switch.Fan Auto or Off Switch. Switch.Fan Auto or Off Switch. Switch.Fan Auto or Off Switch. <br /> One temperature setpoint Two temperature setpoint Two temperature setpoint <br /> lever. levers. levers. Status Indication LED <br /> lights,System On, Heat,Cool, <br /> or Service. <br /> Manual/Automatic Remote Sensor Digital Display <br /> Changeover Programmable <br /> Thermostat (1H/1C) <br /> Auto,Heat,Cool or Off System Sensor(s)available for all zone One heat/One Cool Auto <br /> Switch.Fan Auto or Off Switch. sensors to provide remote changeover digital display <br /> Two temperature setpoint sensing capabilities. thermostat. <br /> levers. <br /> PKGP-PRC013K-EN 55 <br />