Carrier 50HCQA07 Installation Instructions Manual

Also see for 50HCQD07: Installation instructions

42Table 15 — Enthalpy Operation, with Demand Controlled Ventilation (DCV) (CO 2 Sensor) — 1 Speed Fan*With 2SP FAN DELAY (Advanced Setup Menu) when in theeconomizing mode there is a delay for the high speed fan to try tosatisfy the call for second stage cooling by turning on the fan to highand opening the OA damper 100% before the first stage mechanicalcooling is enabled.† With stage 3 delay (STG3 DLY) in Advanced setup menu, secondstage of mechanical cooling Y2-O can be turned on after the delay if thecalls for Y1-I and Y2-I have not been satisfied.Table 16 — Dry Bulb Operation, No Demand Controlled Ventilation (DCV) (CO 2 Sensor) — 2 Speed Fan*With 2SP FAN DELAY (Advanced Setup Menu) when in theeconomizing mode there is a delay for the high speed fan to try tosatisfy the call for second stage cooling by turning on the fan to highand opening the OA damper 100% before the first stage mechanicalcooling is enabled.† With stage 3 delay (STG3 DLY) in Advanced setup menu, secondstage of mechanical cooling Y2-O can be turned on after the delay if thecalls for Y1-I and Y2-I have not been satisfied.Table 17 — Dry Bulb Operation, with Demand Controlled Ventilation (DCV) (CO2 Sensor) — 2 Speed Fan*With 2SP FAN DELAY (Advanced Setup Menu) when in theeconomizing mode there is a delay for the high speed fan to try tosatisfy the call for second stage cooling by turning on the fan to highand opening the OA damper 100% before the first stage mechanicalcooling is enabled.† With stage 3 delay (STG3 DLY) in Advanced setup menu, secondstage of mechanical cooling Y2-O can be turned on after the delay if thecalls for Y1-I and Y2-I have not been satisfied.DCVOUTSIDE AIRGOOD TOECONOMIZE?Y1-I Y2-I FAN SPEED Y1-O Y2-O OCCUPIED UNOCCUPIEDBelow SetNoOff Off High 0-v/Off 0-v/Off VENTMIN ClosedOn Off High 24-v/On 0-v/Off VENTMIN ClosedOn On High 24-v/On 24-v/On VENTMIN ClosedYesOff Off High 0-v/Off 0-v/Off VENTMIN ClosedOn Off High 0-v/Off 0-v/Off VENTMIN to Full-Open Closed to Full-OpenOn On High 24-v/On 0-v/Off† VENTMIN to Full-Open Closed to Full-OpenAbove SetNoOff Off High 0-v/Off 0-v/Off VENTMIN to VENTMAX ClosedOn Off High 24-v/On 0-v/Off VENTMIN L to VENTMAX ClosedOn On High 24-v/On 24-v/On VENTMIN H toVENTMAX ClosedYesOff Off High 0-v/Off 0-v/Off VENTMIN L to VENTMAX ClosedOn Off High 0-v/Off 0-v/Off VENTMIN to Full-Open Closed to Full-OpenOn On High DELAY*24-v/On 0-v/Off† VENTMIN to Full-Open Closed to Full-OpenDCVOUTSIDE AIRGOOD TOECONOMIZE?Y1-I Y2-I FAN SPEED Y1-O Y2-O OCCUPIED UNOCCUPIEDNoneNoOff Off Low 0-v/Off 0-v/Off MIN POS L ClosedOn Off Low 24-v/On 0-v/Off MIN POS L ClosedOn On High 24-v/On 24-v/On MIN POS H ClosedYesOff Off Low 0-v/Off 0-v/Off MIN POS L ClosedOn Off Low 0-v/Off 0-v/Off MIN POS L to Full-Open Closed to Full-OpenOn On High DELAY*24-v/On 0-v/Off† MIN POS H to Full-Open Closed to Full-OpenDCVOUTSIDE AIRGOOD TOECONOMIZE?Y1-I Y2-I FAN SPEED Y1-O Y2-O OCCUPIED UNOCCUPIEDBelow SetNoOff Off Low 0-v/Off 0-v/Off VENTMIN L ClosedOn Off Low 24-v/On 0-v/Off VENTMIN L ClosedOn On High 24-v/On 24-v/On VENTMIN H ClosedYesOff Off Low 0-v/Off 0-v/Off VENTMIN L ClosedOn Off Low 0-v/Off 0-v/Off VENTMIN L to Full-Open Closed to Full-OpenOn On High 24-v/On 0-v/Off† VENTMIN H to Full-Open Closed to Full-OpenAbove SetNoOff Off Low 0-v/Off 0-v/Off VENTMIN L to VENTMAX ClosedOn Off Low 24-v/On 0-v/Off VENTMIN L to VENTMAX ClosedOn On High 24-v/On 24-v/On VENTMIN H to VENTMAX ClosedYesOff Off Low 0-v/Off 0-v/Off VENTMIN L to VENTMAX ClosedOn Off Low 0-v/Off 0-v/Off VENTMIN L to Full-Open Closed to Full-OpenOn On High DELAY*24-v/On 0-v/Off† VENTMIN H to Full-Open Closed to Full-Open