Carrier 50TCQD14 Installation Instructions Manual

Also see for 50TCQD: Installation instructions

Contents

42PremierLinkt Controller (Factory--Installed Option)C08199Fig. 48 -- PremierLink ControllerThe PremierLink controller (see Fig. 48) 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 Pilott, Touch Pilott andService Tool. (Standard tier display tools Navigatort andScrolling Marquee are not suitable for use with latestPremierLink controller (Version 2.x).)The PremierLink controller is factory--mounted in the50TCQ unit’s main control box to the left of the CentralTerminal Board (CTB). Factory wiring is completedthrough harnesses connected to the CTB thermostat. Fieldconnections are made at a 16--pole terminal block (TB1)located on the bottom shelf of the unit control box in frontof the PremierLink controller. The factory--installedPremierLink controller includes the supply--air temperature(SAT) sensor. The outdoor air temperature (OAT) sensor isincluded in the FIOP/accessory EconoMi$erR2 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 the PremierLink Controller Installation, Start--up, andConfiguration Instructions for Operating Mode.Supply Air Temperature (SAT) Sensor —Units with a factory--installed PremierLink controller includea supply--air temperature (SAT) sensor (33ZCSENSAT). Thissensor is a tubular probe type, approx 6--inches (12.7 mm) inlength. It is a nominal 10--k ohm thermistor.The SAT is factory--wired. The SAT probe is wire--tied tothe supply--air opening (on the horizontal opening end) inits shipping position. Remove the sensor for installation.Re--position the sensor in the flange of the supply--airopening or in the supply air duct (as required by localcodes). Drill or punch a 1 / 2 --in. hole in the flange or duct.Use two field--supplied, self--drilling screws to secure thesensor probe in a horizontal orientation. See Fig. 49.SUPPLY AIR RETURN AIRSUPPLY AIRTEMPERATURESENSORROOFCURBC08200Fig. 49 -- Typical Mounting Location for Supply AirTemperature (SAT) Sensor on Small Rooftop UnitsNOTE: Refer to the PremierLink Controller Installation,Start--up, and Configuration Instructions for completePremierLink controller configuration, operating sequencesand troubleshooting information. Have a copy of thismanual available 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.