Unit 60 HzMaximum ambient air temperature °C 50Maximum ambient air temperature °F 122Minimum compressed air inlet temperature °C 1Minimum compressed air inlet temperature °F 34Maximum compressed air inlet temperature °C 60Maximum compressed air inlet temperature °F 1408.3 Air dryer dataAll data specified below apply under reference conditions, see section Referenceconditions and limitations.Specific dataAir dryer type Units QED-250 QED-300 QED-350Volume flow at dryer inlet 60 Hz l/s 120 150 185Volume flow at dryer inlet 60 Hz cfm 254 318 392Pressure drop over dryer without filters,approx.60 Hz bar 0.11 0.14 0.22Pressure drop over dryer without filters,approx.60 Hz psi 1.60 2.03 3.19Total power consumption, including cooling fan 60 Hz kW 1.5 1.5 2.3Total power consumption, including cooling fan 60 Hz hp 2.28 3.22 3.08Refrigerant type R410a R410a R410aRefrigerant charge (approx.) kg 0.86 0.86 0.92Refrigerant charge (approx.) lb 1.90 1.90 2.03Dryer mass (approx.) kg 170 170 185Dryer mass (approx.) lb 375 375 408Air dryer type Units QED-450 QED-500 QED-600Volume flow at dryer inlet 60 Hz l/s 220 245 285Volume flow at dryer inlet 60 Hz cfm 466 519 604Pressure drop over dryer without filters,approx.60 Hz bar 0.12 0.18 0.22Pressure drop over dryer without filters,approx.60 Hz psi 1.74 2.61 3.19Total power consumption, including cooling fan 60 Hz kW 2.5 2.9 3.1Total power consumption, including cooling fan 60 Hz hp 3.49 3.89 4.16Refrigerant type R410a R410a R410aRefrigerant charge (approx.) kg 1.55 1.20 1.28Refrigerant charge (approx.) lb 3.42 2.65 2.82Instruction book58 2920 7103 90