12b100 Energy Management Functions

12.B10.1 Scheduling: The software shall provide for up to 5 (user configurable) multiple start and stop schedule(s) for each piece of machinery, for each day of the week. In addition, it shall provide for twenty-six (26) special holiday schedules which can be configured a year in advance. The operator shall have the ability to designate each holiday as either a single date or a range of dates. In addition, each of these 26 holidays shall be configurable as either a complete shutdown day where all zones of control are maintained at setback levels, or a special holiday allowing for the partial shut down of the facility. Each piece of equipment shall have a unique schedule for each of these holidays and the schedules must be identical in format and execution to the normal day-of-week schedules.

12.B10.2 Demand Shedding (if applicable): The operator shall be allowed to select the maximum electrical demand limit for each monitored electrical service in the facility that the system will strive to protect. The operator must have the ability to set the order of priority in which equipment is to be shed. The operator must also have the ability to identify any given control point as a "round-robin" shed point (first off-first on), a "priority" demand point (first off-last on) or a "temperature" demand point (load closest to setpoint shed first). Special user selectable demand parameters for each load shall be shed type, shed priority, minimum shed time, maximum shed time, minimum time between shed. There shall be a programmable demand shedding schedule that will determine the time of day during which demand shedding will be active.

12.B10.3 Minimum on-minimum off times: The operator shall have the ability to enter minimum on and minimum off times for each piece of machinery controlled. This feature shall override all other control parameters to prevent equipment short cycling.

12.B10.4 Straight Time Duty Cycling: The operator shall be able to establish any given control point as a straight time duty cycled point and to set the cycling parameters. For each cycled load the operator shall be able to designate any two minute segment of the hour as either a cycled off or cycled on period. The program shall always begin the programmed cycle periods at the designated offset from the top of the hour. Cycling parameters shall be able to be copied from point to point, or from one point to a group of points. The parameter copy feature shall automatically stagger the cycle period offset from the top of the hour. There shall be a programmable duty cycling schedule that will determine the time of day during which duty cycling will be active.

12.B10.5 Temperature Compensated Duty Cycling: The operator shall be able to establish any given control point as a temperature compensated duty cycled point and to set the cycling parameters for both heating and cooling ramps (if applicable) with a temperature Dead Band. For each cycled load the operator shall be able to designate high and low temperatures, long off and short off times for both heating and cooling ramps, and a total cycle length. All time parameters shall be programmable in minutes and the software shall verify data entry to prohibit conflicting time parameters. There shall be a programmable duty cycling schedule that will determine the time of day during which duty cycling will be active.

12.B10.6 Optimum Start/Stop: For both heating and cooling seasons, the system shall provide customized optimum start/stop routines which take into account outside temperature and inside zone temperatures when preparing the building climate for occupation or shutting the facility down at the end of the day. The software shall track the rate of heat loss or gain in each zone and utilize this data when activating optimum start/stop routines.

12.B10.7 Temperature Control: Building target temperatures for night time, weekend and holiday hours, as well as parameters and limits on normal occupied operation shall be user selectable. The system will strive to maintain these setpoint temperatures in consideration of other energy management functions such as demand shedding, duty cycling, optimum start/stop, etc. Temperature setpoint parameters for on/off points shall be separate temperatures for heating and cooling (if applicable) with Dead Band. Temperature setpoints for analog control points shall include minimum output position (in %), heating full, heating start, cooling start and cooling full.

12.B10.8 Air Conditioning Optimization: Air conditioning shall be balanced and controlled considering the following factors:

a. Date (user selectable start and stop dates);

c. Temperature (outside and inside zone temperatures);

d. Electrical load (staggered start ups & cycling);

e. Short cycle protection (user selectable minimum on and minimum off times); and, f. Economizer control of equipment configured to support this type of operation.

12.B10.9 Freeze Protection: Any control point can be assigned to a special freeze protection menu for use in cold climate areas. Points so assigned shall be programmed to run based on an outside temperature setpoint. This freeze protection algorithm will supersede all other temperature control parameters.

12.B10.10 Manual Override: Separate software manual overrides shall be available for each controlled load that allow the operator to turn on any load for a specific period of time.

12.B10.11 Daylight Savings Time: Start and stop dates for Daylight Savings Time shall be programmable and automatically implemented by the system.

12.B10.12 Alarms: The software shall register and record alarms for the following conditions:

a. Failure of controlled equipment to respond to computer commands (where positive feedback is used);

b. High analog value (user selectable limits); and, c. Low analog value (user selectable limits).

All alarms must be visible and history shall be maintained for a user selectable number of events with a minimum storage of 10 events. In addition, the system must have the capability to automatically dial out of the building to alert user determined authorities in the event of specific alarms. The operator shall have the ability to enable and disable automatic alarm printing. Alarm logs shall contain the date, time, location and type of alarm registered. Also, the software must record the same data for the time when the alarm cleared.

12.B10.13 Monitoring: The software shall track and display various types of information on monitored or controlled points including but not limited to:

a. Last time on b. Last time off c. Temperature d. Pressure e. Alarms

The software shall have the capability to track analog values on the basis of a user defined time period and store the information for a user configurable number of time periods with a minimum storage of 24 periods.

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