50TC*D17PremierLinkt (Factory--Option) —C08199Fig. 24 -- PremierLink ControllerThe PremierLink controller (see Fig. 24) is compatiblewith Carrier Comfort Networkr (CCN) devices. Thiscontrol is designed to allow users the access and ability tochange factory--defined settings, thus expanding thefunction of the standard unit control board. CCN serviceaccess tools include System Pilot (TM), Touch Pilot (TM)and Service Tool. (Standard tier display tools Navigatortand Scrolling Marquee are not suitable for use with latestPremierLink controller (Version 2.x).)The PremierLink control is factory--mounted in the50TC*D unit’s main control box to the right of the CentralTerminal Board (CTB). Factory wiring is completedthrough harnesses connected to the CTB pin connectors.Field connections are made at a 16--pole terminal block(TB1) located at the top of the unit control box, directlyover the top section of the PremierLink controller (seeFig. 21). The factory--installed PremierLink controlincludes the supply--air temperature (SAT) sensor. Theoutdoor air temperature (OAT) sensor is included in theFIOP/accessory EconoMi$ert2 package.The PremierLink controller requires the use of a Carrierelectronic thermostat or a CCN connection for timebroadcast to initiate its internal timeclock. This isnecessary for broadcast of time of day functions(occupied/unoccupied).NOTE: PremierLink controller is shipped in Sensormode. To be used with a thermostat, the PremierLinkcontroller must be configured to Thermostat mode. Referto PremierLink Configuration instructions for OperatingMode.Supply Air Temperature (SAT) Sensor — OnFIOP--equipped 50TC*D unit, the unit is supplied with asupply--air temperature (SAT) sensor (33ZCSENSAT).This sensor is a tubular probe type, approx 152 mm(6--inches) in length. It is a nominal 10--k ohm thermistor.The SAT is factory--wired. The SAT probe is mounted inthe fan deck (see Fig. 25). It can be removed orremounted per local codes.. Drill or punch a 12.7 mm( 1 / 2 --in.) hole in the flange or duct. Use twofield--supplied, self--drilling screws to secure the sensorprobe in a horizontal orientation. Insure that the sensorwires do not contact the hot surface of the electric heaters.SUPPLY AIR RETURN AIRSUPPLY AIRTEMPERATURESENSORROOFCURBC09059Fig. 25 -- Mounting Location for Supply AirTemperature (SAT) Sensor on 50TC*D UnitsNOTE: Refer to Form 33CS--58SI for completePremierLink configuration, operating sequences andtroubleshooting information. Have a copy of this manualavailable at unit start--up.NOTE: The sensor must be mounted in the dischargeairstream downstream of the cooling coil and any heatingdevices. Be sure the probe tip does not come in contactwith any of the unit’s heater surfaces.