Carrier 50TCQA04 Installation Instructions Manual

Also see for WeatherMaker 50TCQA07: Installation instructions Installation instructions Service and maintenance instructions

42Supply Air Temperature (SAT) Sensor —Units with a factory--installed PremierLinkt controllerinclude a supply--air temperature (SAT) sensor(33ZCSENSAT). This sensor is a tubular probe type,approx 6--inches (152 mm) in length. It is a nominal 10--kohm 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. 48.SUPPLY AIR RETURN AIRSUPPLY AIRTEMPERATURESENSORROOFCURBC08200Fig. 48 -- Typical Mounting Location for Supply AirTemperature (SAT) Sensor on Small Rooftop UnitsNOTE: Refer to PremierLinkt Controller Installation,Start--up, and Configuration Instructions for completeconfiguration, operating sequences and troubleshootinginformation. Have a copy of this manual available at unitstart--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.Outdoor Air Temperature (OAT) Sensor —The OAT is factory--mounted in the EconoMi$erR2 (FIOPor accessory). It is a nominal 10k ohm thermistor attached toan eyelet mounting ring.EconoMi$er2 —The PremierLink controller is used with EconoMi$er2unit (option or accessory) for outdoor air management.The damper position is controlled directly by thePremierLink controller; the EconoMi$er2 unit has nointernal logic device.Outdoor air management functions can be enhanced withfield--installation of these accessory control devices:Enthalpy control (outdoor air or differential sensors)Space CO2 sensorOutdoor air CO2 sensorRefer to Table 23 on page 43 for accessory part numbers.Field ConnectionsField connections for accessory sensor and input devicesare made at the 16--pole terminal block (TB1) located onthe control box bottom shelf in front of the PremierLinkcontrol (See Fig. 47). Some input devices also require a24--vac signal source; connect at CTB terminal R at“THERMOSTAT” connection strip for this signal source.See connections figures on following pages for fieldconnection locations (and for continued connections at thePremierLink board inputs).Table 24 (on page 43) provides a summary of fieldconnections for units equipped with Space Sensor. Table 25(on page 44) provides a summary of field connections forunits equipped with space thermostat.