EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER

 

Fig. 48. Setpoint ramping parameters with ramp rate calculation

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Fig. 49. Schematic diagram for a typical W7750B Unit

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Fig. 50. Staged output control versus PID Error

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Fig. 51. Point capacity estimate for Zone Manager

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Fig. 52. Graph of Sensor Resistance versus Temperature

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Fig. 53. Graph of Sensor Resistance versus Temperature

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Fig. 54. Graph of Sensor Resistance versus Temperature

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Fig. 55. Graph of Sensor Resistance versus Temperature

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Fig. 56. Graph of Sensor Resistance versus Temperature

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Fig. 57. Graph of Sensor Voltage versus Humidity

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Fig. 58. C7600C output current vs. humidity

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Fig. 59. Graph of Sensor Current versus Enthalpy (volts)

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Fig. 60. Partial psychometric chart for a C7400A Solid State Enthalpy Sensor

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Fig. 61.

C7400A Solid State Enthalpy Sensor output current vs. relative humidity

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Fig. 62.

Graph of Sensor Voltage versus CO2 concentration

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Fig. 63.

Graph of Sensor Voltage versus input Voltage to A/D

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Fig. 64.

Graph of Sensor Voltage (Vdc) versus Pressure (Inw)

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74-2958— 1

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Honeywell W7750A specifications Setpoint ramping parameters with ramp rate calculation, 74-2958