A Strong Data Center for your Business Website

The Data Alarm Processor-II (DAP II) offers the definitive answer for precision environmental control. The DAP-II control system not only controls and monitors temperature, humidity, airflow, and cleanliness, it provides component run times, alarm history, and an automatic self-test of the microprocessor.

All messages are presented in a clear, vernacular format and sequentially displayed on a backlit, liquid crystal display (LCD). The DAP-II can interface with the Data Aire PC (DAPC) Network and the Data Aire Remote Telecommunication System (DART-200).

Standard Features                           Operational Features
Diagnostic & Service Features          Protective & Safety Features
Programmable Selections                Conditions & Data Displayed
Functions Displayed                        Alarms Displayed Historical Data Displayed

STANDARD FEATURES

Stand alone panel service terminals or additional devices are not required for programming or monitoring functions.

Microprocessor based state-of-the-art technology and reliability in a programmable solid state control panel. two row, 80 character, backlit, supertwist liquid crystal display (lcd) information displayed and presented in a format that is easily viewed and understood.

Smooth keyboard type switches high reliability, flat, sealed switches with tactile feedback.

Forward & backward menu access accelerates programming with flexible operation.

Factory-calibrated temperature & humidity sensors accuracy and consistent regulation, especially in multi-unit application

Menus factory programmed menus that pertain to the type and method of cooling, reheat & humidification based on the unit components and options.

Multilevel password access control unauthorized changes to settings and system functions.

Database of unit and room conditions historical data that facilitates service, apparatus setup, and fine-tuning of setpoints.

Programmed settings saved in eeprom memory nonvolatile memory storage so all control settings and operational parameters are secured indefinitely even during power outage.

Battery backup for historical data extensive historical data preserved by integral battery backup in case of a power failure.

Automatic self-test diagnostics affirms the processor and select components are functioning properly at power on and continuously during operation.

Top of Page

OPERATIONAL FEATURES

Selectable control type designate a control algorithm (smart logic, pid, or setpoint deviation) that will provide optimum system performance for the application.

Sequential load activation time and temperature based logic that sequentially starts and stops stages of cooling and reheat.

Temperature anticipation responds to varying rates of temperature change.

Humidity anticipation modifies the humidity setpoint to diminish excess humidification and dehumidification.

Energy saver (glycol) or auxiliary chilled water operation two types of energy saver systems are available. Supplemental compressor operations during energy saver mode extends the savings from energy saver by allowing 1 or 2 compressors to supplement operation as needed when energy saver alone is not sufficient.

Dehumidification mode lockout inhibits dehumidification if not required for performance.

Automatic compressor rotation periodically rotates the lead/lag sequence to balance compressor run times.

Automatic reheat element rotation rotates the staging sequence to balance the run times of the heating elements.

Chilled water, energy saver & hot water coil flush cycle periodically circulates fluid in the coil to reduce deposit buildup in system.

Compressor short cycle control prevents excessive compressor wear by using restart and anti-cycle limits.

Start time delay programmable time delay staggers the start-up of multiple units to prevent high power demand peaks.

Automatic or manual restart method for restart after power failure is programmable.

Top of page

DIAGNOSTIC & SERVICE FEATURES

Manual diagnostic program accessible procedures for testing the processor and major system components.

Alarms displayed in order of occurrence sequence with time of occurrence assist in diagnosing the cause of alarms.

Manual override for blower, cool 1 & 2, heat 1, humidification & water valve the control circuit is operable even with processor not functioning.

Adjustable alarm limits threshold levels for temperature and humidity alarms are programmable.

Four programmable optional alarms in addition to the standard alarms, there are four programmable alarms available.

Programmable delays for optional alarms deters nuisance and false alarms caused by temporary or transient conditions.

Programmable remote alarm group or specific alarm selection for remote alarm contact.

Select alarms optionally disabled group or specific alarm selection for remote alarm contact.

Select alarms optionally disabled alarms that are nonessential can be turned off.

Audio alarm tone programmable tone pattern for diverse space noise conditions.

Top of page

PROTECTIVE & SAFETY FEATURES

Metal shell enclosure with sealed front control panel electromagnetic interference (em) protection and general protection against environmental contamination and handling damage.

Isolation transformer protection against ground loops, ground shorts, wiring errors, and conducted electrical interference.

Opto-coupler signal inputs isolates the circuit board from electrical noise or static from contactors, compressors, motors, etc., which can contaminate the power at the circuit board.

Protected 24 vac power input fuse, metal oxide varistor (mov), and transient voltage suppressor react to interrupt the power from the circuit board if excessive amperage or overvoltage condition is detected.

Heavy ground planes & power foils large ground plane areas and wide power runs minimize disturbances caused by emi and other types of electrical interference.

Watch dog timer automatically resets the circuit board, clears any corrupted memory, and restarts the system with minimal interruption in case of an unfiltered transient signal.

Switching power supply allows for a wide ac input voltage fluctuation to reduce the effects of a power brownout while still maintaining circuit board operation.

Fused rs-485 network lines disconnects the circuit board from the source of current to protect the circuit board components.

Network bypass relays prevents a single unit from disrupting the communication network by automatically disconnecting the problem unit from the circuit.

Modulating humidifier control * proportional control of steam generator humidifier provides additional refinements in performance.

Two additional remote alarms * group or specific alarm selection for remote alarm contact.

Humidifier autoflush cycle adjustable flush cycle for infrared and immersion type humidifiers to reduce deposit buildup.

Analog inputs * output values of two external analog sensors can be read on the processor display.

Rs-485 network system * monitoring and control of 200+ units from a central location with a Data Aire pc network or Data Aire remote telecommunication system. underfloor water detection cable * provides continuous water detection cable to encircle the entire data aire unit.

Top of page

PROGRAMMABLE SELECTIONS

Temperature Setpoint 65° - 86° F (18.3° - 29.4° C)
Temperature Deadband ±1° - ±5° F/C
High Temperature Alarm Limit 70° - 90° F (21.1° - 32.2° C)
Disable High Temperature Alarm
Low Temperature Alarm Limit 55° - 75° F (12.8° - 23.9° C)
Disable Low Temperature Alarm
Humidity Setpoint 30% - 70% RH
Humidity Deadband 1.0% - 15.0% RH
High Humidity Alarm Limit 35% - 90% RH
Disable High Humidity Alarm
Low Humidity Alarm Limit 10% - 65% RH
Disable Low Humidity Alarm

Mode & Stage Response Time 1 - 5 Minutes
Compressor Lead/Lag Sequence Automatic 1 Lead 2 Lead

Reset Equipment Runtimes Blower Condenser Compressor 1 Compressor 2 Reheat Strip 1 Reheat Strip 2 Reheat Strip 3 Humidifier Dehumidification Energy Saver Chilled Water Cooling Reset All to Zero Runtimes

Audio Alarm Mode None Long Full Short Beep
Automatic Self-Test Acknowledge On Off
Manual Diagnostics Stay in Normal Menu Mode Change to Diagnostic Mode
Humidity Anticipation On Off

Compressor Short Cycle Alarm On Off
Compressor Supplements to Energy Saver * Energy Saver not Available Energy Saver with No Compressors Energy Saver with 1 Compressor Energy Saver with 2 Compressors

Dehumidification Mode 1 Compressor within Reheat Limits 2 Compressor within Reheat Limits 1 Compressor with No Reheat Limits 2 Compressor with No Reheat Limits Dehumidification Off

Low Discharge Temperature Alarm Limit * 45A - 60A F (7.2A - 15.6 A C)
Disable Low Discharge Temperature Alarm

Power Problem or Restart Mode Automatic: No Message or Alarm Automatic: Message, Audio Alarm & Relay Manual: Message, Audio Alarm & Relay

Message for Optional Alarm 1, 2, 3, & 4 Custom Message Alarm: 25 Space Message Fan Motor Overload: Check Motor Amperage * Local Alarm: See Tag Inside Door * Standby Pump On: Check Primary Pump * * UPS/Alternate Power On: Check Main Power * Reheat Inhibited Humidification Inhibited Reheat & humidification Inhibited

Delay for Optional Alarm 1, 2, 3, & 4 0 - 900 Seconds Off

Remote Alarm 1, 2, & 3 Selection * Compressor Short Cycle Custom Message 1, 2, 3, & 4 * Dirty Filter Discharge Air Sensor Problem * Fan Motor Overload * Fire Stat High Humidity High Pressure Compressor 1 High Pressure Compressor 2 High Temperature Humidifier Problem Humidity Sensor Problem Local Alarm 1, 2, 3, & 4 * Low Humidity Low Pressure Compressor 1 Low Pressure Compressor 2 Low Temperature Low Voltage Maintenance Required Manual Override No Airflow No Water Flow * Power Problem or Restart Smoke Detector * Standby Pump On * Temperature Sensor Problem Water Detection Probe UPS/Alternate Power On Reheat Inhibited Humidification Inhibited Reheat & Humidification Inhibited

Person to Contact on Alarm Contact Message Not Used Data Processing Manager Maintenance Engineer Service Company 25 Space Custom Message
Define Password 00-99
Humidifier Autoflush Timer * Autoflush Timer Not Used 6 Hours 12 - 96 in 12 Hour Increments
Firestat Temperature Alarm Unit Unit Shutdown & Alarm At: 100° - 150°F
Scheduled Normal Maintenance 1 - 1000 Hours Off
Temperature Scale Fahrenheit Centigrade
Control Logic Smart Logic PID Setpoint Deviation
Unit & Network Identification Number 0 - 260
Calibrate Temperature Sensor + 9.9° F/C
Calibrate Humidity Sensor +30.0% RH
Calibrate Discharge Air Sensor * + 9.9° F/C Sensor not Installed
Compressor(s) None Primary Primary/Secondary Primary/Primary Primary/Secondary Primary/Secondary *
Reheat Stages None 1 2 3 Hot Water *
Humidifier None Computer, Non-Modulating Computer, Modulating * Comfort, Non-Modulating Comfort, Modulating *
Water Valve Voltage Range 0 - 10 VDC 4 - 7 VDC 6 - 9 VDC 7 - 10 VDC
Reverse Acting Water Valve Yes No

Top of page

CONDITIONS & DATA DISPLAYED

Temperature Setpoint Degrees Fahrenheit or Celsius
Humidity Setpoint Percent of RH
Current Temperature Degrees
Current Humidity Percent of RH
Current Percent of Capacity Utilized Compressor Reheat Humidifier Water Valve
Current Discharge Air Temperature * Degrees
Unit or Network ID # 0 - 260
Zone # 0 - 99

Top of page

FUNCTIONS DISPLAYED

Cooling 1st Stage 2nd Stage 3rd Stage* 4th Stage * Auxiliary Chilled Water Cooling* Energy Saver Cooling *
Reheat 1st Stage 2nd Stage 3rd Stage Hot Water *
Humidification Chilled Water Flow 10% - 100%
Dehumidification

Top of page

ALARMS DISPLAYED

High Temperature Warning Current ° F/C
Low Temperature Warning Current ° F/C
High Humidity Warning Current ° %
Low Humidity Warning Current ° %
High Pressure Compressor 1 Manual Reset Required
High Pressure Compressor 2 Manual Reset Required
Low Pressure Compressor 1 Automatic Reset
Low Pressure Compressor 2 Automatic Reset
Under Floor Water Detection Check Probe
No Air Flow Check Belt & Motor
Dirty Filters Check Filters
Humidifier Failure Check Water Pressure
Manual Override Check Bypass Switches
Firestat Tripped Unit Shutdown
Low Voltage Warning Check Voltage
Power Failure Restart Power Failure or Restart
Compressor Short-Cycle Warning
Temperature Sensor Error Sensor Problem
Humidity Sensor Error Sensor Problem
Maintenance Required Scheduled Maintenance Due
Custom Message * Up to 40 Character Message
Local Alarm * See Tag Inside Door
Discharge Air Sensor Error * Sensor Problem
Fan Motor Overload * Check Motor Amperage
No Water Flow * Check Water Pump
Smoke Detector * Unit Shutdown
Standby Pump On * Check Primary Water Pump
Person to Contact on Alarm * Up to 25 Character Message

Top of page

HISTORICAL DATA DISPLAYED

Last 24 Hours High & Low Temperature High & Low Humidity
Average Percent of Capacity Last Hour Compressor(s) Reheat Stripes Humidifier Water Valve
Alarm History Last 10 Alarms Time Since Occurrence

Equipment Runtimes Blower Condenser Compressor 1 Compressor 2 Reheat Strip 1 Reheat Strip 2 Reheat Strip 3 Humidifier Dehumidification Energy Saver Cooling * Chilled Water Cooling *Some of the Optional Features, Programmable Selections, Displays, Alarms and Historical Data require additional components or sensors. Please contact your Data Aire Inc. representative for a detailed analysis of your requirements. Data Aire Inc. reserves the right to make design changes for the purpose of product improvements, or to withdraw any design without notice.