Carrier 50TCQD14 Installation Instructions Manual

Also see for 50TCQD: Installation instructions

Contents

33Table 11 -- Menu Structure* (cont)Menu ParameterParameterDefaultValueParameterRange and Increment[ EXPANDED PARAMETER NAMENotesSYSTEMSETUPINSTALL 01/01/10 Display order = MM/DD/YYSetting order = DD, MM, then YY.UNITS DEG _F _F or _C Sets economizer controller in degrees Fahrenheit or Celsius.EQUIPMENT CONV Conventional or HP CONV = conventional;HP O/B = Enable Heat Pump mode. Use AUX2 I for Heat Pump input fromthermostat or controller.See Menu Note 4AUX2 IN n/a Shutdown (SD)Heat (W1)HP (O)HP (B)In CONV mode:SD = Enables configuration of shutdown (default);W = Informs controller that system is in heating mode.NOTE: If using 2---speed fan mode, you must program CONV modefor W. Shutdown is not available in 2---speed fan mode.See Menu Note 4.In HP O/B mode:HP(O) = energize heat pump on Cool (default);HP(B) = energize heat pump on Heat.FAN SPEED 1speed 1 speed/2 speedSets economizer controller for operation of 1 speed or 2 speed supply fan.The controller does not control the fan but positions the OA and RAdampers to the heating or cooling mode. See page 34 for modes andposition.NOTE: 2---speed fan option also needs Heat (W1) programmed inAUX 2 In. See Menu Note 4.FAN CFM 5000cfm 100 to 15000 cfm;increment by 100UNIT DESIGN AIRFLOW (CFM)Enter ONLY if using DCVCAL ENA = AUTOThe value is found the nameplate label for the specific RTU.AUX1 OUT NONE NONEERVEXH2SYSSelect OUTPUT for AUX1 O relayNONE = not configured (output is not used)ERV = Energy Recovery Ventilator[[EXH2 = second damper position 24 Vac out for second exhaust fanSYS = use output as an alarm signalOCC INPUT INPUT or ALWAYS OCCUPIED MODE BY EXTERNAL SIGNALWhen using a setback thermostat with occupancy out (24 Vac), the 24 Vacis input “INPUT” to the OCC terminal. If no occupancy output from thethermostat then change program to “ALWAYS” OR add a jumper fromterminal R to OCC terminal.See Menu Note 2.FACTORY DEFAULT NO NO or YES Resets all set points to factory defaults when set to YES. LCD will brieflyflash YES and change to NO but all parameters will change to the factorydefault values.NOTE: RECHECK AUX2 IN and FANTYPE for required 2---speedvalues.ADVANCEDSETUPMA LO SET 45_F(7_C)35 to 65_F;(2 to 18_C)Incremented by 1_SUPPLY AIR TEMPERATURE LOW LIMITTemperature to activate Freeze Protection (close damper and alarm iftemperature falls below setup value)FREEZE POS CLO CLO or MIN FREEZE PROTECTION DAMPER POSITIONDamper position when freeze protection is activeCLO = closedMIN = MIN POS or VENTMAXCO2 ZERO 0ppm 0 to 500 ppm:Increment by 10CO2 ppm level to match CO2 sensor start level.CO2 SPAN 2000ppm 1000 to 3000 ppm;Increment by 50CO2 ppm span to match CO2 sensor. e.g.; 500---1500 sensor output wouldbe 500 CO2 zero and 1000 CO2 span.STG3 DLY 2.0h 0 min, 5 min, 15 min,then 15 min intervals.Up to 4 h or OFFCOOLING STAGE 3 DELAYDelay after stage 2 for cool has been active. Turns on second stage ofmechanical cooling when economizer is first stage call and mechanicalcooling is second stage call. Allows three stages of cooling, 1economizer and 2 mechanical.OFF = no Stage 3 cooling.SD DMPR POS CLO CLO or OPN Indicates shutdown signal from space thermostat or unitary controller.When controller receives 24 Vac input on the SD terminal in conventionalmode, the OA damper will open if programmed for OPN and OA damperwill close if programmed for CLO. All other controls, e.g., Y1---O, Y2---O,EXH1, etc. will shut off.NOTE: Function NOT AVAILABLE with 2---speed modeDA LO ALM 45_F(7_C)NONE35 to 65_F; (2 to 18_C)Incremented by 5_Used for alarm for when the DA air temperature is too low. Set lower rangeof alarm, below this temperature the alarm will show on the display.DA HI ALM 80_F(27_C)NONE70 to 180_F; (21 to 82_C)Incremented by 5_Used for alarm for when the DA air temperature is too high. Set high rangeof alarm, above this temperature the alarm will show on the displayDCVCAL ENA MAN MAN (manual)AUTOTurns on the DCV automatic control of the dampers. Resets ventilationbased on the RA, OA and MA sensor conditions. Requires all sensors (RA,OA, MA and CO2).NOTE: This operation is not operable with a 2---speed fan unit.