Specifications

40
Data Aire Data Alarm Processor III ( DAP
TM
III)
The environmental system shall be furnished with a microprocessor based Data Alarm Processor-III panel. The panel shall include
unit switching functions and display normal functions, malfunctions, and service diagnostics on a 2 row, 80 character, backlit liquid
crystal display (LCD) in a clear vernacular format. The panel shall allow recall and display of the high and low temperature for
the last 24 hours, high and low humidity for the last 24 hours, current percent of capacity and average percent of capacity for the
last hour of operation for cool 1, cool 2, reheat, humidifi cation, and dehumidifi cation, component runtimes for fan motor, reheat,
humidifi cation, and dehumidifi cation. Programming shall have multilevel password access to prevent unauthorized access. Pro-
gramming shall be accomplished entirely from the front of the unit without the need to access, set, or program switches inside the
unit (front door of unit does not need to be opened). Programmable functions shall be entered on fl ash memory to insure program
retention should power fail. The historical data base shall be maintained by battery backup. Multiple messages shall be displayed
by automatically scrolling from each message to the next. Alarm conditions, in addition to being displayed, shall enunciate an
audible alarm. A summary alarm relay shall be available for remote alarms. Additional test or service terminal shall not be re-
quired for any functions. The control shall include temperature anticipation, moisture level humidity control and automatic fl ush
cycles.
An alarm condition shall continue to be displayed until the malfunction is corrected. Multiple alarms shall be displayed sequen-
tially in order of occurrence and only those alarms which have not been acknowledged shall continue to sound an audible alarm.
The Data Alarm Processor-III panel shall perform an automatic self-test on system start-up. A user accessible diagnostic program
shall aid in system component trouble shooting by displaying on the unit LCD screen the name of the controlled item, output relay
number, terminal plug and pin number for each controlled item.
The following automatic control functions shall be included:
Selectable water under fl oor alarm action Start time delay
Sequential load activation Humidity anticipation
Dehumidifi cation lockout Compressor short cycle
Automatic reheat element rotation Automatic or manual restart
Energy saver (glycol operation)* Auxiliary chilled water operation*
Hot water coil fl ush cycle* Chilled water coil fl ush cycle*
Energy saver coil fl ush cycle* DX activation on Energy Saver system*
The following conditions, data and normal functions shall be monitored and displayed:
Temperature setpoint Humidity setpoint
Current temperature Current humidity
Cooling Dehumidifi cation
Reheat Current percentage of capacity utilized
Humidifi cation Current discharge temperature*
Chilled water temperature*
The following switching and control functions shall be included:
System On/Off switch Menu selection buttons
Menu exit button Select buttons
Manual override for: Alarm silence button
blower, cooling, reheat 1, humidifi cation, water valve
GUIDE SPECIFICATIONS, continued