Carrier 50KC*A/B06 Series Installation Instructions Manual

37Table 8 — Menu Structure* (cont)LEGEND* Table 8 illustrates the complete hierarchy. Your menu parametersmay be different depending on your configuration. For example ifyou do not have a DCV (CO 2) sensor, then none of the DCV param-eters appear.† When values are displayed, pressing and holding the or but-ton causes the display to automatically increment.** N/A = Not Applicable.†† ERV Operation: When in cooling mode AND the conditions areNOT OK for economizing - the ERV terminal will be energized. Inthe Heating mode, the ERV terminal will be energized when the OAis below the ERV OAT setpoint in the setpoint menu.NOTES:1. STATUS —> OCCUPIED — The factory-standard Occupancysignal originates with a thermostat or other controller call forindoor fan operation at UCB terminal G. This signal passesthrough the Unit Control Board’s OCCUPANCY jumper to theECONO connector and to the W7220’s OCC input terminal. Anexternal timeclock or relay is required to implement an Occu-pancy schedule on the economizer damper position.2. STATUS —> MA TEMP, SETPOINTS —> MAT SET — TheW7220 menu parameters and labels include designations MA,MAT and Mixed Air for the economizer cooling control sensor. Onthese rooftop units, the economizer control sensor is locateddownstream of the evaporator/indoor coil in the supply fan sec-tion where this sensor is designated as Supply Air Temperature(SAT) sensor.3. SETPOINTS —> DRYBLB SET — This point is not displayed if aReturn Air (differential) temperature sensor or an Outdoor Airenthalpy sensor is connected.4. SYSTEM SETUP parameters must be configured as noted for 2-Speed unit operation:EQUIPMENT = CONVAUX2 I = WFAN SPEED = 2SPEEDFor damper minimum position settings and checkout menureadings, see Table 9.MENU PARAMETERPARAMETERDEFAULTVALUEPARAMETERRANGE ANDINCREMENT† NOTESALARMS(CONT)SHUTDOWN ACTIVE N/A N/A AUX2 IN is programmed for SHUTDOWN and 24 V has been applied toAUX2 IN terminal.DMP CAL RUNNING N/A N/A DAMPER CALIBRATION ROUTINE RUNNINGIf DCV Auto enable has been programmed, when the W7220 is complet-ing a calibration on the dampers, this alarm will display. Wait until the cali-bration is completed and the alarm will go away. Must have OA, MA andRA sensors for DCV calibration; set up in the Advanced setup menu.DA SENS ALM N/A N/A DISCHARGE AIR TEMPERATURE SENSOR ALARMDischarge air temperature is out of the range set in the ADVANCEDSETUP Menu. Check the temperature of the discharge air.SYS ALARM N/A N/A When AUX1-O is set to SYS and there is any alarm (e.g., failed sensors,etc.), the AUX1-O terminal has 24 Vac out.ACT UNDER V N/A N/A ACTUATOR VOLTAGE LOWVoltage received by actuator is below expected range.ACT OVER V N/A N/A ACTUATOR VOLTAGE HIGHVoltage received by actuator is above expected range.ACT STALLED N/A N/A ACTUATOR STALLEDActuator stopped before achieving commanded position.CLO — Compressor LockoutERV — Energy Recovery VentilatorLCD — Liquid Crystal DisplayMA — Mixed AirMAT — Mixed Air TemperatureN/A — Not ApplicableOA — Outdoor AirOAT — Outdoor Air TemperatureOCC — OccupiedRA — Return AirRAT — Return Air TemperatureRTU — Rooftop UnitSYS — SystemTable 9 — Damper Minimum Position Settings and Readings on Checkout MenuDEMAND CONTROLLEDVENTILATION(CO 2 SENSOR)SETPOINTS FAN SPEED CHECKOUTNOMIN POS 1 VMAX–HSN/A 1 N/AMIN POS H 2 VMAX–HSMIN POS L 2 VMAX–LSYESVENT MIN 1 VMAX–HSVENT MAX 1 VMAX–HSVENT MIN H 2 VMAX–HSVENT MAX H 2 VMAX–LSVENT MIN L 2 N/AVENT MAX L 2 N/A