EHAD Specifications

Room General Data

Model:              Evaporator/Heater/Airflow

                        Development Stand (EHAD)

Manufacturer:   RANSCO

Specified Performance

A)  AIR SYSTEM

      Supply Airflow:                                                       75 to 500 SCFM

      Supply Airflow Stability                                            ± 1% of reading + 1CFM

      Supply Air Temperature Range                                -20° to 150° F

      Supply Air Temperature Control:                              ± 0.6°F

      Supply Air Pressure:                                                0 to 2” water column

      Supply Air Pressure Control Stability:                        ± 0.02” water column

      Temperature Range of Humidity Control:                  35° to 110°F

      Humidity Range:                                                      20% to 95% RH

      Humidity Control Stability:                                        ± 2% RH

(B) WATER/GLYCOL SYSTEM/HEATER CORES

      Hot Water Flow Range:                                           2 to 50 lb / min

      Water Flow Control                                                 ± 0.25 ppm (between 2 Stability:  and 30 ppm)

                                                                                    ± 0.75% (between 30 and 50 ppm)

      Water Temperature Range:                                      Ambient + 10°F to 225°F

      Water Temperature             Control Stability:                        ± 0.6°F

(C) REFRIGERATION SYSTEM/EVAPORTOR TESTING

      Discharge Pressure:                                                            150 to 500 PSIG

      Automotive Blower Voltage:                                    3 to 20 VDC

      Automotive Blower Voltage Control Stability:           ± 0.05 VDC                 

 (D) CALORIMETER HEATER CORE AND EVAPORTOR CORE

      ± 3% energy balance max:                                       10 kW