Data Aire DAP III Manuale utente

Data Alarm Processor-III

DAP™ III

Operation Manual

Data Aire, Inc.

230 W. BlueRidge Avenue

Orange, CA 92865

www.dataaire.com

Unit Mounted DAP III

Wall Mounted DAP III

nit Mounted DAP I

Table of Contents

Introduction .............................................................................................................................4

Modes of Operation.................................................................................................................5

Hard Off/ON .............................................................................................................................6

DAP III Processor

Standard Features...................................................................................................................8

Optional Features....................................................................................................................8

Diagnostic and Service Features...........................................................................................9

Protective and Safety Features..............................................................................................9

Display Panel.........................................................................................................................10

Condition and data displayed.......................................................................................10

Functions displayed ......................................................................................................10

Warning and alarms displayed .....................................................................................11

Historical data displayed...............................................................................................11

Programmable Selections12

Menu Groups ...........................................................................................................................13

Sub Menus ...........................................................................................................................13

Display Panel Push Button Functions........................................................................................16

Automatic Diagnostic Self-test on Start Up...............................................................................17

Menuing

Group 1 - Status and History................................................................................................18

Group 2 - Setpoints...............................................................................................................20

Group 3 - Operation ..............................................................................................................22

Group 4 - Alarms ...................................................................................................................28

Group 5 - Conﬁguration........................................................................................................38

Group 6 - Network.................................................................................................................40

Group 7 - Calibration.............................................................................................................42

Group 8 - Set-Back................................................................................................................44

Group 9 - Diagnostics...........................................................................................................49

Group 10 - Analog .................................................................................................................53

Control Logic ...........................................................................................................................58

Troubleshooting Guide................................................................................................................70

Manual Override Switches...........................................................................................................77

Analogue Module Micro-switches...............................................................................................78

Data Aire

Data Alarm Processor III

(DAP™ III)

Data Aire’s Data Alarm Processor III (DAP III) continues the tradition of advanced electronic devices from

Data Aire for monitor and control of computer room air conditioning units which began in 1977, over thirty years ago.

Each generation of these devices has provided more accurate monitoring information and ﬂexibility in controlling the

unit. The DAP III, microprocessor, based on the popular non-proprietary protocol, Modbus RTU, is equipped with

ﬂash memory and along with the standard USB port permits fast and easy software updates. The modular design

offer installation and upgrades ﬂexibility. Should you need to upgrade your unit simply pop in a new board. As in the

past the DAP III communicates directly with all major building management system (BMS). Just add a communica-

tions card and you are connected. One new exciting feature of the DAP III is a real time clock allowing you to pin-

point problems, precisely knowing what occurred and when. A new hierarchal menu structure permits easy and fast

access making programming simple.

The DAP III is the latest in microprocessor design and will keep your computer room air conditioning unit running ef-

ﬁciently for a long time.

While the DAP III has two distinct looks they are identical as far as program and function. This Operation Manual cov-

ers both the unit and wall mount.

The unit mounted DAP III panel, shown to the left,

comes standard on all ﬂoor mount Data Aire units.

The wall mounted DAP III panel, shown to the right, is

standard on all Mini-Plus, LCS, and Shelf units. It can

also be an option on the Mini and ﬂoor mounted units.

Modes of Operation - The DAP III has two modes of operation. The Operation mode is the prevelant mode

and occurs when the unit is in normal operation. During this mode the top row of the display shows the current opera-

tion which the unit is in, such as: humidiﬁcation, dehumidiﬁcation, reheat stage - either 1,2 or 3 depending on how the

unit is conﬁgured; cooling stage - either 1 or 2 again depending on the conﬁguration of the unit; and energy saver. If

none of these condition exist a display of “Data Aire System Ready” will be shown. The lower row will continuously

scrolls through the following displays: date and time set in the DAP III program; unit number and zone number (Pro-

viding the unit is connected to a network. If not connected to a network it will display “N/A.”) as programmed; current

temperature and humidity detected by the return air sensors or if the optional remote sensors are used it will be the

conditions the remote sensors record; then any alarm conditions currently active. (A listing of these alarm conditions

are shown on page 11.) If your unit uses chilled water DAP III will display the percentage of chilled water ﬂow as well.

In the upper right-hand corner of the DAP III display you should ﬁnd a blinking form in the shape of a heart. The blink-

ing indicates that the processor is functional.

The second mode of the DAP III is the Menu Mode which is described in the balance of this manual. To enter the

Menu Mode depress either of the MENU buttons.

DAP III Buttons - On the front of the DAP III there are seven buttons: an ON/OFF, MENU UP ()and MENU

DOWN () button; SELECT UP () and SELECT DOWN () button; SILENCE /ALARM button and an EXIT button.

The ON/OFF button is a soft power on/power off button. The hard power ON/OFF switch is located on the DAP III

Control Module circuit board and will be explained in the next section of this manual.

SILENCE /ALARM button only function is to mute audio alarms, the button is sparingly used in programming.

EXIT button has no function in the operation mode, however, it is used in the menu mode. Once in the menu mode

when the EXIT button is depressed the values programmed are saved and takes you up one level. For example if

you are in the Menu Groups, as shown on the top of page 13, depressing the EXIT button will take you to the opera-

tion mode. However, if you are in a Sub-Menus, shown on pages 13-15, depressing the EXIT button will take you to

the Menu Group for that sub group. For example if you were in sub-menu group 4-6 Firestat Temperature Alarm Limit,

depressing the EXIT button will take you to Menu Group 4 -Alarms .

MENU / MENU these buttons primarily allow you the scroll up or down in the menu grouping that you are in

currently. If you are in the Group menus depressing the MENU button will take you to the next higher menu, from

Group1 - Status & History to Group 2 - Setpoints. Conversely pressing the MENU button will take you to the next

lower menu in that grouping, from sub group 8-5 Set-Back Reheat depressing the MENU button would take you

to sub group 8-4 Set Up Cool. (All menu grouping continuously scroll, once you reach the last menu option and you

depress the MENU button you will return to the ﬁrst menu option.) These buttons have other specialized functions

depending on the subgroup menu you are addressing. These functions are described in the body of this manual in

the section where they apply. If the MENU buttons are held down they will advance at a rapid rate. If there is no but-

ton activity for three minutes the DAP III will return to the Operation Mode.

SELECT /SELECT these buttons, as the name implies, allows you to select a menu once you have located it

using the menu buttons. For example if you wanted to select the sub group menus for “Group 3 - Operation,” once

you scrolled to the group using menu buttons - depress the SELECT button will take you to “3-1 - Set Time and

Date,” the SELECT button would take you to sub menu “3-16 - Humidiﬁcation Desaturation Cycle” the last menu

option in sub-menu group 3 Once in sub group menus the SELECT and SELECT buttons permit you to scroll

through that menu’s options..

Hard Power ON/OFF Switch - After supplying power to the unit, if the DAP III does not come on when you

press the soft ON/OFF button on the cover of the DAP III it will be necessary for you to open the cover of the DAP III

The DAP III can be shipped in three different conﬁguration of circuit boards; the basic DAP III board; the DAP III with

the relay board; and DAP III with the relay and analog boards. Each of these conﬁgurations are shown below and on

the following page. The conﬁguration in your unit is dependent on the type of cooling and options that was selected.

One of these photos will match the circuit board that is in your unit. However the hard ON/OFF switch is in the same

position on all boards

DAP III Circuit Board

Control Module

The use of the additional switches on the circuit boards will be discussed on page

78 of this manual.

Hard power ON/OFF Switch

Shown in the ON position

on the upper panel and OFF

position in the lower panel.

DAP III Control Module

Control Expansion Module

DAP III Circuit Board with Relay Module installed

Hard power ON/OFF Switch

shown here in the OFF

position

Relay Module

DAPIII CIrcuit Board with Relay and Analog Modules installed

Hard Power ON/OFF Switch

shown here in the OFF

position

Analog Module

DATA ALARM PROCESSOR – III

The Data Alarm Processor-III (DAP-III) offers the deﬁnite answer for precision environmental control. The DAP-III

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 simple

English and sequentially displayed on a backlit, liquid crystal display (LCD). The DAP-III can interface with a variety of

building management systems (BMS).

STANDARD FEATURES

StandAlone 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.

Smooth Keyboard Type Switches – High reliability, ﬂat, sealed switches with tactile feedback.

Two Row, 80 Character, Backlit Supertwist Liquid Crystal Display (LCD) – information is displayed and presented

in a format that is easily viewed and understood.

All Settings are Programmable from the face of the Panel – Expedient and user-friendly.

Layered Forward and Backward Menu Access – Facilitates programming with ﬂexible operation.

Multi-level Password Access– Controls any 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.

Battery Backup for Historical Data – Extensive historical data is preserved by integral battery backup in case of power

failure.

Menus Factory Programmed – Menus that pertain to the type and method of cooling, reheat and humidiﬁcation based

on the unit’s components and options.

Programmed Settings Saved in Flash Memmory – Non-volatile memory stored so all control settings and operational

parameters are secured indeﬁnitely even during power outage.

Factory Calibrated Temperature and Humidity Sensors – Accurate and consistent regulation especially in multiple

unit applications.

Automatic Self-Test Diagnostics – Veriﬁes the processor and selected components are functioning properly at power

on and continuously during operation.

OPERATIONAL FEATURES

(Optional feature may require additional components and/or sensors.)

Sequential Load Activation – Time and temperature based logic that sequentially starts and stops stages of cooling

and reheat.

Compressor Short Cycle Control – Prevents excessive compressor wear by using restart and anti-cycle limits.

Automatic or Manual Restart – Restart methods are programmable in the event of a power failure.

Supplemental Compressor Operation during Energy Save Mode – Extends the savings from Energy Saver by

allowing one or two compressors to supplement cooling as needed when Energy Saver cooling is not sufﬁcient.

Temperature Anticipation – Responds to varying rates of temperature change.

Humidity Anticipation – Modiﬁes the humidity setpoint to diminish excess humidiﬁcation and dehumidiﬁcation.

Dehumidiﬁcation Mode Lockout – Inhibits dehumidiﬁcation if not required for system performance.

Start Time Delay – Programmable time delay staggers the start-up of multiple units to prevent high power demand

peaks.

Chilled Water, Energy Saver and Hot Water Coil Flush Cycle – Periodically circulates ﬂuid in the coil to reduce

deposit buildup in system.

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.

Energy Saver (Glycol) or Auxiliary Chilled Water Operation – Two types of Energy Saver Systems are available.

Programmable Water Under Floor Alarm - Can shut down unit or just compressors.

DIAGNOSTIC AND SERVICE FEATURES

Alarms Displayed in Order of Occurence – Sequence with time of occurrence assist in diagnosing the cause of

alarms.

Programmable Delays for Optional Alarms – Reduces nuisance and false alarms caused by temporary or transient

conditions.

Manual Diagnostic Program – Provides accessible procedures to test the processor and major system components.

Manual Override for Blower, Cool 1 and 2, Heat 1, Humidiﬁcation and Water Valve – The control circuit is operable

even if the processor is not functioning properly.

Adjustable Alarm Limits – Threshold levels for temperature and humidity alarms are programmable.

Four Programmable Optional Alarms – In addition to the standard alarms, four additional alarms are programmable.

Select Alarms Optionally Disabled – Nonessential alarms can be turned off.

Audio Alarm Tone – Four programmable alarm tones.

PROTECTIVE AND SAFETY FEATURES

Metal Shell Enclosure with Sealed Front Control Panel – Provides electromagnetic interference (EMI) protection and

general protection against environmental contamination and handling damage.

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.

Opto-Signal Inputs – Isolates the circuit board from electrical noise or static from contactors, compressors and motors

that can contaminate the power at the circuit board.

Protected 24 VAC Power Input – Fused metal oxide varistor (MOV) and transient voltage suppressor react to interrupt

the power from the circuit board if excessive amperage or over voltage condition is detected.

Isolation Transformer – Protection against ground loops, ground shorts, wiring errors and conducted electrical

interference.

Heavy Ground Planes and Power Foils – Large ground plane areas and wide power runs minimize disturbances

caused by EMI and other types of electrical interference.

Switching Power Supply –Allows for wideAC input voltage ﬂuctuation to reduce the effects of a power blackout while

still maintaining circuit board operation.

Fused RS-485 Network Lines on Network Communication Card – Disconnects the circuit board from the source of

current to protect the circuit board components.

Modulating Humidiﬁer Control – Proportional control of steam generator humidiﬁer provides additional reﬁnements in

performance. (Optional Relay Module required.)

Humidiﬁer Autoﬂush Cycle – An adjustable ﬂush cycle for infrared humidiﬁers to reduce deposit build-up. (Optional

Relay Module required.)

Three Additional Remote Alarms – Group or speciﬁc alarm selection for remote alarm contact. (Optional Relay

Module required.)

Analog Inputs – Output values of four external analog sensors can be read on the processor display. (OptionalAnalog

board required.)

Underﬂoor Water Detection Cable – Provides continuous water detection cable to encircle the entire unit.

Display Panel

CONDITIONS and DATA DISPLAYED

TEMPERATURE SETPOINT – ºF or ºC CURRENT TEMPERATURE – ºF or ºC

HUMIDITY SETPOINT – Percent of relative humidity CURRENT HUMIDITY – Percent of relative humidity

CURRENT DISCHARGEAIR or CHILLED WATER TEMPERATURE* - ºF or ºC

FUNCTIONS DISPLAYED

COOLING – 1st stage, 2nd stage, 3rd stage*, 4th stage* REHEAT – 1st stage, 2nd stage, 3rd stage, hot water*

CHILLED WATER FLOW – 10 to 100% (based on VDC output) ENERGY SAVER* - hours of operation

DEHUMIDIFICATION - hours of operation HUMIDIFICATION - hours of operation

* This optional feature or data display may require additional components and/or sensors.

Altri manuali per DAP III

Indice

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