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Local Monitoring Systems
3.0LOCAL MONITORING SYSTEMS
Two levels of microprocessor control systems are available providing precise control and monitoring of the critical space.
The Advanced Microprocessor is standard, and the Advanced Microprocessor with Graphics is optional. The main control functions are similar for both controls.
3.1Control
The user must enter a
•Temperature Setpoint
•Temperature Sensitivity
•Humidity Setpoint
•Humidity Sensitivity
•High Temperature Alarm
•Low Temperature Alarm
•High Humidity Alarm
•Low Humidity Alarm
*The microprocessor may be set within these ranges; however, the unit may not be able to control to extreme combinations of temperature and humidity.
3.2Control Type
Factory
3.3Internal System Control
•Compressor short cycle control: Prevents compressor
•System auto restart: The auto restart feature will automatically restart the system after a power failure. Time delay is programmable.
•Sequential Load Activation: On initial
•Hot Water /
•Temperature/Humidity Sensor Calibration: The sensors may be calibrated from the front monitor panel to insure that all units in the room are similarly calibrated, assuring greater preci- sion.
3.4Monitoring
•Normal display: Includes present room temperature and humidity, active functions (cooling, heating, dehumidifying), and any alarms.
•Operating status: Displays each control operation in percent.
•Read analog inputs function: Displays the present values of up to four analog inputs.
3.5Diagnostics
•Input diagnostics: Reviews inputs to the control system.
•Control board diagnostics: Initiates a
•Output diagnostics: Tests major components by turning them on and off from the control panel.
Includes: main fan, compressor, liquid line solenoid valve, hot gas bypass valve, chilled water or chilled GLYCOOL valve,
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