DATA AIRE, INC. DANA-32TM

DATA AIRE, INC. 

DANA-32 TM 

Data Aire Network Autochangeover 

Photo of panel when available. 

INSTALLA 

ALLATION 

AND OPERATION MANUAL 

AL

TABLE OF CONTENTS 

INTRODUCTION .................................................................................................................. 3 

Overview ................................................................................................................................................... 3 

Design Features ........................................................................................................................................ 3 

Control Features ........................................................................................................................................ 3 

Protective and Safety Features ................................................................................................................. 3 

Conditions and Functions Displayed ......................................................................................................... 3 

Alarm Displayed ........................................................................................................................................ 3 

INSTALLATION................................................................................................................. 4-6 

Location Considerations ............................................................................................................................ 4 

Installation and Wiring ............................................................................................................................... 5 

Start-up a DANA-32 Panel......................................................................................................................... 6 

PANEL OPERATION and PROGRAMMING ................................................................................. 7-13 

Buttons Function- Alarm Silence ............................................................................................................... 7 

Routine LCD Messages ............................................................................................................................. 7 

Programming and Selections ............................................................................................................... 7-13 

Menu 1 – Override Request ................................................................................................................. 7 

Menu 2 – Enter Password .................................................................................................................... 7 

Menu 4 – Enter The Total Units............................................................................................................ 8 

Menu 5 – Set Zones Number ............................................................................................................... 8 

Menu 6 – Set or Reset Unit Primary Status ......................................................................................... 8 

Menu 7 – Set Rotation Day .................................................................................................................. 8 

Menu 8 – Set Rotation Time ................................................................................................................ 9 

Menu 9 – Set Standby Alarms .............................................................................................................. 9 

Menu 10 – Set Off Alarms ..................................................................................................................... 9 

Menu 11 – Set Temperature Standby ................................................................................................... 10 

Menu 12 – Set Zone Inhibit .................................................................................................................. 10 

Menu 13 – Set Time Clock ................................................................................................................... 11 

Menu 14 – Set or Modify Password ..................................................................................................... 11 

Menu 15 – Set Secondary Enable ....................................................................................................... 11 

Menu 16 – Set Secondary Unit Status ................................................................................................. 11 

Menu 17 – Set Secondary Start Day .................................................................................................... 12 

Menu 18 – Set Secondary Start Time .................................................................................................. 12 

Menu 19 – Set Secondary Stop Day .................................................................................................... 12 

Menu 20 – Set Secondary Stop Time .................................................................................................. 12 

Menu 21 – Set Override Enable ........................................................................................................... 12 

Menu 22 – Alarm Buzzer ...................................................................................................................... 12 

Menu 23 – Data TX Enable .................................................................................................................. 13 

Procedure To retrieve Password ............................................................................................................... 8 

MANUAL DIAGNOSTIC PROGRAM ................................................................................. 14 

CONTROL LOGIC ......................................................................................................... 15-16 

Auto Lead/Lag Rotation Control Logic .................................................................................................... 15 

Temperature Standby Control Logic ........................................................................................................ 15 

Standby Alarm Logic................................................................................................................................ 15 

Off Alarm (Critical Alarm) Logic .............................................................................................................. 16 

Inhibit Control Logic ................................................................................................................................ 16 

TROUBLESHOOTING ................................................................................................. 17 - 18 

SPECIFICATIONS .............................................................................................................. 19 

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1. INTRODUCTION 

1.1 Overview 

The Data Aire Network Autochangeover (DANA-32 TM ) panel offers a unit rotation and unit lead/lag 

control for up to 32 Data Aire units. The DANA-32 has two programmable schedules for an economical 

control solution and standby unit activation on temperature or alarms for total system back up. It also 

allows an interface between Data Aire units and a remote PC station via serial cable (RS-232) for 

remote monitoring and control. (This requires optional PC-DART Windows software.) This 

microprocessor-based control provides innovative features and “state of the art” technology. 

1.2 Design Features 

· 16 characters liquid crystal display (LCD) 

· Nonvolatile memory storage for all programmed settings 

· Backup battery for time clock (RTC) 

· Printed circuit board mounted audio alarm 

· RS-232 serial port for direct cable connection (D-9 com port) 

· RS-485 com port for a daisy chain system connection 

· Two soft touch buttons on the front panel for system programming 

1.3 Control Features 

· Unit auto changeover by selectable standby or off (critical) alarms 

· Zone functions inhibit 

· Lead/lag and standby rotation with an 8 hours to seven days schedule 

· All settings are programmed using menu driven soft-touch keys 

· Two programmable schedules for an economical control solution 

· Programmable unit’s status (On/Off/Standby) 

· Password for menus access 

· Standby unit activation by temperature 

· Manual diagnostics for components troubleshooting 

1.4 Protective and Safety Features 

· Metal shell enclosure protects panel from electromagnetic interference, environmental 

contamination, and handling damage. 

· Protected 24 VAC power input: 

1 amp fuse for the PC board power 

1/4 amp fuses for signal inputs and outputs 

· Metal Oxide Varistor (MOV) snubs the transient voltage 

· Built-in Watchdog timer which will automatically reset the circuit board, clear the corrupted 

memory, and restart the system with a minimal interruption in case of an unfiltered transient 

signal. 

1.5 Conditions and Functions Displayed 

· Current Local Access Network host (LAN Host): DANA, DIRECT 

· Date and time 

· Current operating schedule 

· Number of units on-line 

· Unit ID and unit status 

1.6 Alarms Displayed 

· Primary unit off line 

· Wrong password 

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2. INSTALLATION 

2.1 Location Considerations 

Locate the DANA-32 panel as follows: 

• On a partitioning interior wall, approximately 5 ft (1.5 m) above the floor. 

• Avoid direct sunlight or radiant heat, outside walls, or behind doors, or outside doors. 

• Avoid steam or water pipes, warm air stacks, unheated/non-air-conditioned areas, monitors or 

sources of electrical interference. 

Figure 1: Terminal identification and circuit board details 

CAUTION: Shock Hazard. Disconnect power before wiring connections are made to prevent 

electrical shock or possible damage to the equipment. 

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2.2 Installation and Wiring 

To install and wire a DANA-32 panel: 

1. Use a Phillips screwdriver to loosen the side screws of the panel. 

2. Remove the cover of the DANA-32 panel. Place the panel against the wall; mark the location of the 

four mounting holes. 

3. Use plastic anchors and screws for mounting on drywall or plaster (recommended). 

Avoid mounting the DANA-32 panel to the metal frame. It may not be properly grounded. 

4. Connect 24 VAC power supply to pin #1 and pin #2 of the DANA-32 panel terminal strip using 18 

AWG copper wires. Refer to the wiring diagram on figure 2 for details. The JP1 ground jumper on 

the DANA-32 panel must be cut to avoid a short circuit and blowing the F5 fuse if it is grounded to a 

system that has an AC power common leg grounding, this can cause a power feedback to DANA-32 

panel. 

5. Daisy Chain wiring must be routed from the DANA-32 board to the Data Aire units using 18 gauge, 

shielded and twisted pair communication cable. Remember each unit is required to have a network 

communication card to connect to the DANA-32 panel. 

6. The maximum distance of a Daisy Chain loop is 1,000 feet. Consult with the factory if a longer 

distance is required. Refer to figure 2 for the system wiring details. 

7. Up to 32 units can be connected to one DANA-32 board. 

WARNING: This Daisy Chain Wiring must be followed exactly as shown. If one wire is 

connected incorrectly, the entire loop is affected. 

Figure 2: DANA-32 Terminal identification and system wiring details. 

CAUTION: Equipment Damage Hazard. Before applying power, make all wiring connections and 

check the connections. Short circuited or improperly connected wires may result in permanent 

damage to the unit. 

5

2.3 Start-up of A DANA-32 Panel 

1. Check the 24 VAC power supply applied to the DANA-32 panel. 

2. Configure the Unit ID number of each unit in the system. Use menu number 46 on the DATA 

ALARM PROCESSOR II (DAP II) to change the unit ID number if necessary. The unit ID number on 

the system cannot be duplicated and must be ordinal. 

3. Turn all the units in the system on and keep them on during the start-up. 

4. Turn on the DANA-32 panel. Wait for the DANA-32 panel to go through its self-test then use menu 

option number 4-TOTAL UNITS to enter the number of units that are connected to the DANA-32 

panel. See “Programming and Selections section” below for details. 

5. Use menu option number 5 to assign the Zone number for each unit. Then use menu option number 6 

to set the operating status for each unit (ON/OFF/ STANDBY). 

6. Set the date and time for the rotation schedule on menu option number 7 and menu option number 8. 

7. Select the Standby Alarm on menu option number 9 (the alarm that will activate a standby unit) 

See “Programming and Selections section” for details. 

8. Select the OFF alarm using menu option number 10 (see Off alarm logic for details). 

9. Use menu option number 11 to select Standby Unit Activation on temperature if it is required. 

10. Use menu option number 12 and set Zone Inhibit if desired. 

11. Use menu option number 13 to set time clock to the current date and time. 

12. Set the Password on menu option number 14. 

13. Use menu options number 15 to 21 to set a secondary operating schedule if it is desired. Press the 

Select button twice to get back to the normal operating mode when EXIT THE MENU message 

appears. 

14. The DANA-32 panel will start to communicate with the units and report all unit status. If there are any 

problems, refer to “Troubleshooting section.” 

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3. PANEL OPERATION and PROGRAMMING 

3.1 Button Functions 

Menu: Press the Menu button to go to the desired menu, to scroll through the unit ID in the system or 

to scroll through the alarm list. 

Select: Press the Select button to display the current setting, to change the setting, or to exit the menu 

mode. It is also used to silence an audio alarm. 

Silence: Press the Select button to silence an audio alarm when a “PRIMARY UNIT OFF” alarm 

message appears on the display screen and audio alarm sounds off. 

Important note: 

• The last value to appear is stored for use. Go to the Exit menu, press the Select button 

twice to return to normal operation. 

• The Menu and Select buttons are inactivated while the DANA-32 panel communicates with 

a Remote Monitoring PC station. To use the buttons, wait until the communication session is 

disconnected. 

3.2 Routine LCD Messages 

UNITS ONLINE: 2 Number of units are currently online. 

LAN HOST: DANA Current LAN Host: DANA or Direct Connection. 

M 12/25 08:05:23 Day of the week, date, and time. 

01 72F 51% OKAY Online unit’s ID, temperature, humidity, and status). 

02 OFFLINE Off line unit’s ID. 

3.3 Programming and Selections 

Menu Operations and Settings 

To access the menu settings of DANA-32 panel, 

Press Menu button to go to menu 1 

1 – OVERRIDE RQST 

Press Select button to the current setting 

OVERRIDE RQST: N Range: Y (YES) OR N (NO) 

• A Y (YES) request will override the SECONDARY SCHEDULE and return the system to the PRIMARY 

SCHEDULE until the next routine start of the SECONDARY SCHEDULE. This menu will only be 

displayed if the panel is in a SECONDARY SCHEDULE period, and if an override is allowed by menu 

21 – OVERIDE ENABLE. The default setting is N (NO). 

Press Select button to change the request, otherwise press Menu button to advance to the next menu. 

2 – PASSWORD 

PASSWORD: 00 Range: 00 to 99 

Press Select button to enter the password. 

• A password is optionally required for access to the subsequent menus. If a wrong password is entered, 

the message “WRONG PASSWORD” will be displayed and a 1- minute delay will occur, during which 

time the Menu and Select buttons will not respond. If the current password is forgotten or unknown, 

it is reported in the diagnostic mode during the self-test. This menu will not be displayed if menu 

option number 14-SET PASSWORD is set to the default bypass value of 00. 

PROCEDURE TO RETRIEVE PASSWORDS ON DANA-32 PANEL 

To retrieve the password on the DANA-32 panel, turn the panel off. Press and hold the Menu and 

Select buttons down simultaneously while turning the panel back on. Release both buttons after panel 

comes on. The panel will go through the self-test then display the password. Reset the panel (turn it off 

then back on) in order to go back to normal running mode. The password should be recorded for future 

reference. 

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Press Menu button to advance to the next menu. 

EXIT THE MENU 

Press Select button twice to exit to normal operation. Otherwise press the Menu button to advance 

to the next menu 

PRIMARY SCHEDULE MENUS 

4 – TOTAL UNITS 

Press Select button to show the current setting. 

TOTAL UNITS: 32 Range: 1 to 32 

• The total number of individual DAP-II panels to be controlled in the AUTO CHANGEOVER mode is set 

in this menu. The default setting is 32. 

Press Select button to change the setting. 


5 – SET ZONES 

• The ZONE designation for each unit is set in this menu. Unit ID numbers are offered sequentially 

based on the total number of units specified in menu 4-TOTAL UNITS. All ID numbers and ZONE 

numbers must be sequential (ordinal). The default settings are all ZONE 1. 


ID 01 ZONE: 1 

Press Select button to change the zone number. 

Press Menu button to advance to the next unit. After the last unit ID number, it will advance to the next 

menu 

ID 02 ZONE: 1 

ID 03 ZONE: 2 

ID 04 ZONE: 2 

ID 05 ZONE: 3 

↓ ↓ ↓ 

ID 06 ZONE: 3 

6 – PRIMARY STATUS 

• This is the initial or current status of each unit in each zone for the primary schedule. The default for 

each unit is “ON”. 

Press Select button to change the unit status from ON to OFF or to SBY (Standby). 

Press Menu button to advance to the next unit. After setting the last unit status, it will advance to the 

next menu. 

ID 01 Z 1 ON 

ID 02 Z 1 SBY 

ID 03 Z 2 ON 

ID 04 Z 2 SBY 

ID 05 Z 3 ON 

ID 06 Z 3 SBY 

7 – ROTATION DAY 

• This menu sets the day of the week or hourly interval at which the ON or STANDBY status of each unit 

is automatically rotated. The default setting is MON (Monday). 

Press Select button to show the current setting 

ROTATE ON MON 

Range: SUN, MON, TUE, WED, THU, FRI, SAT, 8H, 12H, 24H 



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8 – ROTATION TIME 

• This menu sets the time of day when the ON or STANDBY status of each unit is automatically rotated 

(or first rotated). The default setting is 08:00. The OFF setting prevents status rotation but allows the 

PRIMARY and SECONDARY schedule changes to continue. 


ROTATION: 08:00 

Range: 00:00 to 23:00 or OFF 



EXIT THE MENU 

SELECT TO EXIT 

Press Select button twice to exit to normal operation. Otherwise press Menu button to advance to 

the next menu. 

9 – STANDBY ALARMS 

If an ON unit within a ZONE has any of the selected alarms, it will be allowed to remain ON but the 

ZONE will be supplemented after the standby delay with a STANDBY unit being brought online. The 

STANDBY unit will return to STANDBY status only after all alarms are gone and standard criteria is 

satisfied. An asterisk (*) indicates the alarm is a selected STANDBY alarm. The default settings are 

all not selected [no asterisk (*).] 

Press Select button to select (*) or (-) deselect an alarm. See detailed logic on page 16. 

Press Menu button to scroll to the next alarm on the list. After the last alarm, it will advance to the 

next menu 

HIGH TEMP: * 

LOW TEMP: * 

HIGH HUMIDITY: * 

LOW HUMIDITY: * 

HP C-1: * 

HP C-2: * 

LP C-1: * 

LP C-2: * 

NO AIRFLOW: * 

HUMID. FAIL: * 

FIRESTAT: * 

LOW VOLTS: * 

TEMP. SENSOR: * 

HUM. SENSOR: * 

CUSTOM MSG 1: * 




LOCAL ALARM 1: * 




DISCH. SENSOR: * 

FAN MOTOR O/L: * 

NO WATER FLOW: * 

SMOKE DETECR: * 

FLOOR WATER: * 

NET COM FAIL: * 

10 – OFF ALARMS 

• If an ON unit within a ZONE has any of the selected alarms, it will be set to OFF status and the lowest 

ID number STANDBY unit within the ZONE will be changed to ON to replace the unit removed. The 

STANDBY unit will remain ON and the OFF alarm unit will remain OFF until the system is reset in menu 

option 6 (Primary Status) and 16 (Secondary Status). An asterisk (*) indicates the alarm is a selected 

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OFF alarm. The default settings are all not selected [no asterisk(*).] See page 16 for detailed logic. 

Press Select button to select (*) or (-) deselect an alarm. 

Press Menu button to scroll to the next alarm on the list. After the last alarm, it will advance to the 

next menu. 

HIGH TEMP: * 

LOW TEMP: * 

HIGH HUMIDITY: * 

LOW HUMIDITY: * 

HP C-1: * 

HP C-2: * 

LP C-1: * 

LP C-2: * 

NO AIRFLOW: * 

HUMID. FAIL: * 

FIRESTAT: * 

LOW VOLTS: * 

TEMP. SENSOR: * 

HUM. SENSOR: * 









DISCH. SENSOR: * 

FAN MOTOR O/L: * 

NO WATER FLOW: * 

SMOKE DETECR: * 

FLOOR WATER: * 

NET COM FAIL: * 


Once an “ON” unit detects an “Off alarm” and is reconfigured to the “OFF” mode by the DANA- 

32 panel, a “PRIMARY UNIT OFF” alarm message will display on the DANA-32 panel. This 

alarm condition must be corrected and the unit status must be manually reset on menu option 

6 of the DANA-32 panel by a qualified technician in order to clear the alarm message. See 

menu option 6 of the “Programming and Selections section” for details of how to change the 

unit status. 

11 – TEMP STANDBY 

• If Y is selected, a STANDBY unit in the zone will be brought online when the average of return air 

temperature of the ON units is higher than the average temperature setpoint plus the average 

temperature deadband plus 1.5 degrees. See detailed logic on page 15 and 16. The recommended 

default setting is Y 


TEMP STANDBY: Y 

Y (YES) or N (NO) 



12 – ZONE INHIBIT 

• If Y is selected, this will not allow units in the same zone to turn on an opposite function . See the Inhibit 

Control logic on page 17 for details. The recommended default setting is Y. 


10

ZONE INHIBIT: Y 

Range: (YES) or N (NO) 



13 – SET TIME 

Press Select button to go to the minute setting or Menu button to advance to menu option 14. 

SET MIN: 12:59 Range: 0-59 In minutes with current hours showing. 

Press Select button to change minute. Press Menu button to advance to the hour setting. 

SET HOUR: 23:59 Range: 0-23 IN HOURS WITH CURRENT MINUTES SHOWING 

Press Select button to change hour. Press Menu button to advance to the year setting. 

SET YEAR: 1996 Range: 1996 TO 2020 

Press Select button to change year. Press Menu button to advance to the month setting. 

SET MONTH:MAR JAN, FEB, MAR, etc. 

Press Select button to change month. Press Menu button to advance to the date setting. 

SET DATE: 31 1-XX (XX – LAST DAY IN SELECTED MONTH) 

Press Select button to change month. Press Menu button to scroll to the next menu. 

14 – SET PASSWORD 

Press Select button to show the current password. 

PASSWORD: 00 Range: 00 to 99 

The PASSWORD can be any two-digit number from 01 to 99. Password 00 is the default password, 

which also causes the PASSWORD menu to be bypassed. If the current password is forgotten or 

unknown, it is reported in the diagnostic mode during the self-test. 

Press Select button to change the setting. Press Menu button to advance to the next menu. 

EXIT THE MENU 


RETURN TO NORMAL OPERATION 



SECONDARY SCHEDULE MENUS 

15 – SEC ENABLE 

• The SECONDARY SCHEDULE can be set for ON (Yes) or OFF (No) in this menu. If set to YES, 

then other menus are used to set a SECONDARY SCHEDULE. System will switch to the secondary 

schedule when the set time is due. If set to NO, the system will not use the SECONDARY 

SCHEDULE and will stay in the PRIMARY SCHEDULE mode. The default setting is NO. 


SEC ENABLE: NO 

Range: YES or NO 


EXIT THE MENU 





16 – SEC STATUS 

• This is the initial or current status of each unit in each zone for the secondary schedule. The default for 

each unit is “ON”. 

Press Select button to change the unit status from ON to OFF or SBY (Standby). 

Press Menu button to advance to the next unit. After setting the last unit status, it will advance to the 

next menu. 

11

ID 01 Z 1 ON 

ID 02 Z 1 SBY 

ID 03 Z 2 ON 

ID 04 Z 2 ON 

ID 05 Z 3 SBY 

ID 06 Z 3 SBY 

ON, OFF or SBY (STANDBY) 

17 – SEC START DAY 

• The start day for the SECONDARY SCHEDULE is set in this menu. Operation is changed from 

PRIMARY status to SECONDARY status at this time. The default setting is FRI (FRIDAY). 


START DAY: FRI 

Range: SUN, MON, TUE, WED, THU, FRI, SAT 


18 – SEC START TIME 

• The start time for the SECONDARY SCHEDULE is set in this menu. Operation is changed from 

PRIMARY status to SECONDARY status at this time. The default setting is 17:00 (5:00 PM). 


START TIME: 17:00 Range: 00:00 to 23:45 


19 – SEC STOP DAY 

• The stop day for the SECONDARY SCHEDULE is set in this menu. Operation is changed from 

SECONDARY status to PRIMARY status on this day. The default setting is MON (MONDAY). 


STOP DAY: MON 

Range: SUN, MON, TUE, WED, THU, FRI, SAT 


20 – SEC STOP TIME 

• The stop time for the SECONDARY SCHEDULE is set in this menu. Operation is changed from 

SECONDARY status to PRIMARY status at this time. The default setting is 06:00 (6:00 AM). 


STOP TIME: 06:00 Range: 00:00 TO 23:45 


21 – OVERIDE ENABLE 

• This menu allows or denies (prevents) an override of the SECONDARY SCHEDULE from menu 1- 

OVERRIDE RQST. If this menu is set to YES, an override request from 1-OVERRIDE RQST will 

override the SECONDARY status and will return the system to the PRIMARY status until the next 

routine start of SECONDARY status. If this menu is set to NO, then menu 1-OVERRIDE RQST will 

not appear. The default setting is Y (YES). 


OVERIDE ENABLE: Y Range: (YES) or N (NO) 


22 – ALARM BUZZER 

• This menu allows user to turn off the alarm buzzer if the user does not wish to hear an audio alarm 

when the DANA-32 panel detects a primary off unit. This unit is shutdown by the DANA-32 panel 

because it has a critical alarm (Off Alarm) . The recommended default setting is Y. 


ALARM BUZZER: Y 




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23 – DATA TX ENABLE 

• The requests for information by a host computer for DAP II panels information is not required when this 

menu is set to Y (YES). Information is automatically streamed to RS-232 port for the remote monitoring. 

The recommended default setting is Y (YES). 


DATA TX ENABLE: 




EXIT THE MENU 



Press Select button twice to exit to normal operation. Otherwise press Menu button to go back to 

menu option 1. 

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4. MANUAL DIAGNOSTIC PROGRAM 

To enter the Manual Diagnostic Program, simply turn the control panel off. Press and hold the Menu 

and Select buttons down simultaneously while turning the panel back on. Release buttons after the panel 

comes on. The panel will go through a self-test then proceed to the first diagnostic test. 

1 D1-BUTTON TEST 

Press Select button to test the button. 

MENU: - SELECT: - 

Test number 1 is the button test. Each time either the Menu or the Select button is pressed the dash (-) will 

change to asterisk (*) for as long as the button is held down. 

Press both Menu and Select button at the same time, the display will switch to test number 2. 

2 D2-RS-232 TEST 

Press Select button to initiate the RS-232 port test. Add a jumper across pin number 10 (signal transmit) 

and pin number 11 (signal receive) to test the RS-232 com port. 

Press the Menu button to go to the next test. 

3 D3-NETWORK TEST 

Press Select button to activate this test. Add a jumper between pin number 4 (IN+) and pin number 7 

(OUT+), add another jumper between pin number 5 (IN-) and pin number 8 (OUT-) to test the network loop. 

Press the Menu button to go to the next test. 

4 D5- WATCHDOG TEST 

Press Select button to activate the watchdog timer, this will automatically reset the DANA-32 board. 

Otherwise, Press Menu button to advance to the next menu. 

5 D6-WATCHDOG COUNT 

Press Select button to see the number of the watchdog timer resets. 

To exit the Manual Diagnostic Program, simply turn the DANA-32 board off then turn it back on. It will go 

through self-test then go back to normal operation. 

14

5. CONTROL LOGIC 

5.1 Auto Lead/Lag Standby Rotation Logic 

Auto Standby unit rotation - This function provides a means to automatically rotate the designation of 

“Standby “ among a group of units that are “ON”. For example, if unit 1 is designated the “Standby” unit, 

and units 2 and 3 are designated the “ON” units, and unit 4 is set to “OFF” then the rotation sequence 

would be as follows if the rotation schedule is set for 24 hrs: 

Unit 1 Unit 2 Unit 3 Unit 4 

Day 1 Standby On On Off 

Day 2 On Standby On Off 

Day 3 On On Standby Off 

Day 4 Standby On On Off 

ETC.. 

Units that are set to “OFF” by the DANA-32 do not rotate. Auto rotation start time can be set to 

“OFF” for no rotation or to any hour during the day for rotation. Rotation can be specified to occur 

every 8, 12, or 24 hours, or on any day of week. 

Important note: When communication to the DANA-32 is broken, all units will revert to the 

“ON” mode and operate independently. 

5.2 Temperature Standby Control Logic 

This logic is selected on menu option 11 on the DANA-32 panel. See “Programming and Selections 

section” for details. 

Unit status - Each individual unit may be set to “ON”, “OFF”, or “STANDBY” status using menu option 

6. 

In the “ON” mode the unit will operate normally providing all cooling, heating, dehumidification, and 

humidification functions as required. The blower will run continuously for ventilation and provide airflow 

across the sensors for accurate temperature and humidity measurements. 

The “OFF” mode setting will cause the blower, cooling, heating, dehumidification, and humidification 

functions will not function regardless of zone requirements. The message “NETWORK OFF MODE: UNIT 

OFF LINE” will be displayed on the DAP II control panel of this unit. 

The STANDBY mode will have the message “NETWORK STANDBY MODE ” displayed on the unit 

display screen. The blower, and all cooling, heating, dehumidification, and humidification functions will 

not function unless, among the units which are “ON”, the average return air temperature in the zone is 

more than the average setpoint plus average deadband plus 1.5 degrees. Then the blower of the standby 

unit will be turned on. The standby unit will then be allowed to regulate cooling, as it would normally do to 

satisfy its own local setpoint. Normal operation messages will be displayed whenever a standby unit has 

been reactivated for operation. The standby unit will return to inactive when the average zone temperature 

is equal or less than the average setpoint plus average deadband for 15 minutes. 

5.3 Standby Alarm Logic 

Within each zone in a Data Aire installation, one or more units may be designated as “STANDBY” 

units, which are reserved for use only when required by some alarm conditions. Part of the DANA-32 

panel’s job is to detect such alarm conditions and to activate standby units as necessary. 

Note that all standby calculations are made on a per-zone basis, and that the standby unit activations and 

deactivations for each zone are completely independent of those for other zones. 

The user may specify one or more unit alarms as “Standby Alarms” using menu option 9 of DANA-32 

panel. The DANA-32 panel temporarily activates standby units to supplement units that have experienced 

one or more Standby Alarms, according to these rules: 

a) For each unit in a zone that experiences a Standby Alarm, a standby unit is activated if there is a 

standby unit available in that zone. 

b) Once activated, each standby unit remains on until the Standby Alarm has gone away, and for 

fifteen minutes thereafter. 

15

5.4 Off Alarm Logic 

Within each zone in a Data Aire installation, one or more units may be designated as “STANDBY” 

units, which are reserved for use only when required by some alarm conditions. Part of the DANA-32 

job is to detect such alarm conditions and to activate standby units as necessary. 

Note that all Standby calculations are made on a per-zone basis, and that the standby unit activations and 

deactivations for each zone are completely independent of those for other zones. 

The user may specify one or more unit alarms as “Off Alarms” using menu option 10 of DANA-32 panel. 

The DANA-32 panel permanently activates standby units to replace units that have experienced one or more 

Off alarms, according to these rules: 

a) Whenever an ON unit experiences an Off alarm, the DANA-32 panel immediately reconfigures the unit 

to OFF. Then, if there are any standby units available in the affected zone, the DANA-32 panel reconfigures 

the standby unit with the lowest ID number to ON. 

b) Any reconfiguration accomplished by the DANA-32 in response to Off alarms continues until the user 

manually changes it, using the DANA-32 menus. 

c) The last ON unit in the zone will remain on even an Off alarm is detected. 

d) A “PRIMARY UNIT OFF” alarm message will display until the alarm is corrected. To clear this alarm, 

see the important note on page 11 and silence button on page 7. 


Once an “ON” unit detects an “Off alarm” and is reconfigured to the “OFF” mode by the 

DANA-32 panel, a “PRIMARY UNIT OFF” alarm message will display on the DANA-32 panel. 

This alarm condition must be corrected and the unit status must be manually reset on menu 

option 6 of the DANA-32 panel by a qualified technician in order to clear the alarm message. 

See menu option 6 of the Programming and Selections section for details of how to change 

the unit status. 

5.5 Inhibit Control Logic 

The purpose of inhibits logic to keep units located in the same zone from engaging in counterproductive 

heating and cooling, or humidification and dehumidification at the same time in the same zone. Reheat is not 

considered in the inhibit logic since it only accompanies dehumidification. The DANA-32 panel menu (menu 

option 12) must be preset in the menus to apply network inhibits otherwise the units are allowed to operate 

without regard for other unit online functions. 

Cooling / Heating 

1. DANA-32 panel continuously calculates the average temperature of online and standby units in the zone. 

Units set to OFF (with the blowers off) are not included in the average. WARNING: units with bad or miscalibrated 

sensors will cause the operation of the system to be unpredictable. 

2. The inhibit logic can only be invoked by units that are within 3 degrees F of the average measured zone 

temperature. This prevents a unit with a bad or poorly calibrated sensor from causing inhibits. 

3. If any unit has cooling online or starts cooling, then all other units within the zone are inhibited (prevented) 

from continuing or starting heating. 

Humidification / Dehumidification 

1. DANA-32 panel continuously calculates the average humidity of online and standby units the zone. Units 

set to OFF (with the blowers off) are not included in the average. WARNING: Units with bad or mis-calibrated 

sensors will cause the operation of the system to be unpredictable. 

2. The inhibit logic can only be invoked by units that are within 5% of the average measured zone humidity. 

This prevents a unit with a bad or poorly calibrated sensor from causing inhibits. 

3. If any unit has dehumidification online or starts dehumidification, then all other units within the zone are 

inhibited (prevented) from continuing or starting humidification. 

16

6. TROUBLESHOOTING 

CAUTION: The power must be turned off before servicing or replacing the DANA-32 panel. 

SYMPTOM 

CORRECTIVE ACTION 

DANA-32 panel does not turn on. 

• Check 24 VAC power supply on pin 1 and pin 2 of the DANA-32 panel. 

• Check F5 fuse on DANA-32 panel. 

• Check the On/Off switch. 

Dim display. 

• Adjust the LCD ADJ pot on top of LCD screen. 

DANA-32 panel does not communicate with units in the loop, DANA-32 panel indicates all units 

“OFFLINE”. TX out LED blinks. 

• Check F1, F2, F3, F4 fuse. 

• Check for loose or bad connections in the daisy chain loop. 

• Daisy chain loop is longer than 1,000 feet. 


“OFFLINE”. RX in LED lit. 

• Check for cross polarity in the daisy chain loop. 

• Check for loose or bad connections in the daisy chain loop. 


“OFFLINE”. 

• Check for loose or bad connections in the loop. 

• Check for cross IN and OUT connections in the loop. 

• Check for bad network communication card. (This card is located on the DAP II panel.) 

The Network LED on the card may light, not blink. May attempt to bypass one unit at a time. 

• Use manual diagnostic test D3 to test com port. 

DANA-32 panel does not communicate with a unit in the loop, DANA-32 panel indicates unit 

“OFFLINE.” 

• Check the unit ID, remember the unit ID cannot be duplicated. 

• Check the fuses on the network communication card. 

• Check for loose network card on DAP II panel. 

DANA-32 panel locks up 

• Check 24 VAC power supply on pin 1 and pin 2 on the DANA-32 panel. Reset DANA-32 panel. 

DANA-32 panel locks up, the TX out and RX in LED are lit but not blinking. 

• Check 24 VAC power supply on pin 1 and pin 2 

• Reset the DANA-32 panel. 

DANA-32 panel indicates EEPROM fails. 

• Turn the DANA-32 panel off for 10 seconds then turn it back on. 

DANA-32 panel does not keep time or sticks on RTC time clock update mode. 

• Check the backup battery. 

• Reset the DANA-32 board. 

17

F5 fuse is blown 

• Check 24 VAC power and grounding. See Installation and wiring section on page 5 for details. 

Unit is turned off by DANA-32 panel 

• Check the unit primary status setting on menu option 6. Reset the unit status. 

• Unit may be turned off by an Off Alarm. Check Off alarm selections on menu option 10. Correct 

the alarm and reset the unit status to “ON” using menu option 6. See OFF ALARM control logic 

for more details. 

Units do not rotate. 

• Units lose communications with DANA-32 panel. Check fuses on Network cards of DAP II panels 

in the loop. 

• Check the rotation schedule on menu options 7 and 8. 

• Check the unit zone ID number, remember that units only rotate when they are in the same zone. 

• Check the unit status is set on menu option 6 for primary schedule or option 16 for secondary 

schedule. 

Standby unit does not come on. 

• Check unit status setting on menu option number 6. Unit status must be “SBY”, not “OFF”. 

• Check unit zone ID number, it must be the same as lead unit. 

• Check menu option 11 setting if standby unit is desired to activate based on temperature. 

• Check menu option 9 setting if standby unit is desired to activate on a standby alarm. 

• Check menu option 10 setting if standby unit is desired to activate on an Off alarm. 

Standby unit does not shut off. 

• Unit loses communication with DANA-32 panel. 

• Zone ID number is not the same as lead unit. 

• Standby unit is set to activate by temperature. See temperature standby control logic. 

• 15 minutes standby time delay is in effect, wait for 15 minutes. See standby control logic for 

details. 

• Check unit status setting on menu option 6 for primary schedule or option 16 for secondary 

schedule. 

• Unit is on by a standby alarm. Check the standby alarm setting on menu option 9. 

• This is a last “ON” unit in the zone. 

18

7. SPECIFICATIONS 

Power requirements 

Current draw 

Backup battery for time clock 

Fuse for power supply F5 

Fuse for input/output signal F1-4 

Serial port 

Connections 

Wiring 

Dimensions (H x W x D) 

24 VAC ± 10% @ 50/60 Hz (40 VA) 

800 mA 

3 Volt Lithium battery, BR1225 

1 Amps, 5X20 mm fast-acting miniature fuse 

¼ Amps, 5X20 mm fast-acting miniature fuse 

D-9 female serial port for PC connection 

Miniature screw-type terminals 

22-18 AWG shielded and twisted pair cable 

5 1/4 in. x 8 7/8 in. x 1 1/8 in. (130 x 226 x 29 mm) 

Shipping weight 1.75 lbs ( 800g ) 

19

230 W. BlueRidge Avenue 

Orange CA 92865 

800-347-2473 

www.dataaire.com e-mail: sales@dataaire.com 

A Member of the CS Group of Companies 

© 2003 Data Aire Inc. 

Data Aire, Inc. reserves the right to make design changes for the 

purposes of product improvement, or to withdraw any design 

without notice. 

DANAIOM-0603

DATA AIRE, INC. DANA-32TM

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