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L.J. Wing AireLogic User Manual

Manual is about: Digital Control System

Summary of AireLogic

  • Page 1

    1 airelogic digital control system user manual rev. 04-11-13.

  • Page 2

    2 table of contents overview ................................................................................................................................. 6 networking ......................................................................................................................... 8 aire...

  • Page 3

    3 mixed air temperature mode ............................................................................................... 26 mrt control……. ............................................................................................................................................. 26 mrt-expert c...

  • Page 4

    4 diagnostics – non-critical alarm codes ................................................................. 40 alarm code: unit off/fan on ......................................................................................... 40 solution: if fan is running ............................................

  • Page 5

    5 appendix iv ............................................................................................................................ 56 i/o zone 583 controller battery checkout ......................................................................... 56 appendix v ................................

  • Page 6: Overview

    6 overview a glossary has been provided to assist the reader in understanding distinctive terms and phrases. These terms and phrases appear in italics. Lj wing’s digital control system, airelogic, is designed to give the user the ultimate in unit performance and operational flexibility, adaptability...

  • Page 7

    7 it is easy to move the bacview between the location of the room sensor in the space and the unit’s location without having to do any additional wiring. Simply unplug the bacview from the bottom of the room sensor in the space and take it to where the unit is located. Then, plug the bacview into th...

  • Page 8: Networking

    8 networking airelogic is adaptable to a variety of different network architectures and protocols. Each controller has built-in protocol translation and can be configured for operation on arcnet156 or eia-485 communication networks. See appendix iii for specific controller specifications. The airelo...

  • Page 9: Unit Operating Modes

    9 item default range cooling discharge setpoint (mdt-expert control) 73°f 40°f - 130°f remote damper position setpoint 0% outside air 0% - 100% mixed air temperature setpoint 50°f 30°f - 90°f building pressure setpoint 0.00” w. C. -0.10” - +0.10” w. C. Manual damper position setpoint 20% outside air...

  • Page 10

    10 unit manual mode manual mode allows the unit to turn on. To place the unit in manual mode, rotate the “temperature setpoint” knob on the remote control panel clockwise to the desired room temperature setpoint. This will place the unit in the manual mode and enable the fan and burner. See heating/...

  • Page 11

    11 unit manual mode manual mode allows the supply fan to turn on regardless of the time clock or night setback functions. Heating and cooling functions use the occupied setpoints. To place the unit in manual mode, scroll through the unit modes menu tree, locate the auto/off/manual branch, and select...

  • Page 12

    12 is in the building. The maintenance crew will come in at 5:00 am on friday to complete preliminary tasks in preparation for the week. We will use this sample schedule as our guide in programming the sample schedule. Refer to the menu selection tree for bacview section of this manual for more info...

  • Page 13

    13 5. Navigate to the days fields, making sure the cursor surrounds the first hyphen ( [ - ] ). Press the enter button and then press the link key that corresponds to incr on the screen. The field will now show mon, indicating that this schedule will be active every monday from 6:00 am to 5:00 pm. R...

  • Page 14

    14 and friday) using holiday schedules 3 through 10, then proceed to the next step. 9. Since the maintenance crew will be in the building at 5:00 am on monday, we will need an override schedule to override part of the holiday schedule we just created. Navigate back to the schedules screen using the ...

  • Page 15

    15 switch, exhaust fan interlock, or any other dry contact to override the time clock schedule. Mdt-expert controls: the airelogic mdt-expert (modulating discharge temperature) control system provides full information regarding unit operation and allows the user to adjust all operational parameters ...

  • Page 16

    16 to set the time clock function for 24 hour continuous operation, scroll through the menu tree and locate the schedules page. Set the 24 hr operation to yes. Enter the daily section of the menu and set the use tab to yes. Finally select the days for 24 hour operation. See the clock set section of ...

  • Page 17

    17 3. To enable the daily schedule, set the use field to yes. The stat field indicates whether the schedule on that screen is currently active, so you may see either on or off in this field. Navigate to the start time field and set the start time for 6:00 am. Be aware that times are programmed in a ...

  • Page 18

    18 8. Press the link key corresponding to the next field on the screen. This will take you to holiday schedule 2. Set the start time for holiday schedule 2 to 12:00 pm and the stop time to 5:00 pm. Set the month field to 11 (november) and the day field to 19 (monday, the first weekday that week). Yo...

  • Page 19: Modes

    19 heating/ventilating/cooling operating modes the airelogic ddc controller automatically switches between the heating, ventilating and cooling modes of operation. The previous sections described the heating and cooling setback operation. This section concentrates primarily on the occupied operating...

  • Page 20

    20 to change the desired minimum supply or discharge air temperature scroll through the setpoints menu tree, locate the htg min da setpoint, and enter a new temperature. This temperature must not be greater than the htg max da setpoint. The allowable temperature range is 40°f - 130°f. This sets the ...

  • Page 21

    21 airelogic units that recirculate air after the burner are physically constrained to limit the percentage of return air. These constraints are meant to provide the proper dilution air. These units are not listed by an independent third party testing agency and do not use the equivalent temperature...

  • Page 22

    22 demonstrated below. The dotted line in the middle of the diagram represents the change between room temperature rise and room temperature fall. Select a point on the heavy line in the diagrams on the following pages to determine the mode of operation. Figure 2 unoccupied example: (except mdt and ...

  • Page 23

    23 figure 3 occupied example (except mdt and mdt-expert): start at point “a”. The unit is in the ventilation mode and the room or outside air temperature is rising. Follow the dashed line upward. If the room or outside air temperature rises to a temperature that is 2°f over the cooling setpoint, the...

  • Page 24

    24 cooling mode general cooling control depending on the control type, the occupied cooling mode allows the cooling to operate as needed and is activated whenever the room or outside air temperature is 2° above the cooling setpoint. During the unoccupied cooling mode, the cooling is activated whenev...

  • Page 25: Damper Control Modes

    25 damper control modes there are four different modes that control the unit damper operation: manual, mixed air temperature, building pressure, and 100% outside air. Except for the 100% outside air mode, these operating modes are selected through the menu tree of the bacview or pc. Not all damper m...

  • Page 26

    26 mixed air temperature mode the mixed air temperature mode varies the percentages of outside air and return air to maintain a constant mixed air temperature. The airelogic controller computes the mixed air temperature using the outside air and return air temperatures and the ratio of their respect...

  • Page 27: 100% Outside Air

    27 the minimum outside air at 20%. If the outside air drops below 20%, the burner will cycle off. See minimum ventilation. 100% outside air the 100% outside air function automatically opens the outside air dampers and closes the return air dampers. This function is activated whenever a contact is cl...

  • Page 28

    28 and establish upper and lower control limits. Five keypad entries define the operational parameters. These parameters are: user control setpoint, minimum user setpoint, maximum user setpoint, low input value, and high input value. The low and high input values describe the input transducer range....

  • Page 29

    29 assume the user wishes to control a chilled water valve using a temperature transducer. The control variable will be supply air temperature. As the supply air temperature increases, the chilled water valve should open to lower the temperature. The temperature transducer has a range of 50ºf - 85ºf...

  • Page 30

    30 reverse acting the controller output ao-1 is modulated by a pid loop from 0% to 100% based on the user control setpoint and the input signal to in-2. As the input signal increases the output voltage decreases. Additionally, a secondary control acts to override the pid loop to scale the output as ...

  • Page 31: Unit Resets

    31 the pressure transducer compares the pressure outside the space to the pressure inside the space and transmits a corresponding signal to the airelogic controller. The controller compares this signal to the desired user control setpoint (0.03”) and uses the pid loop to modulate the output from 0-1...

  • Page 32

    32 still present after power is restored, no matter which method was used to reset the alarms. For example, if the room sensor failure alarm is active when the alarms are reset but the unit is still configured for mrt control and the room sensor is disconnected, the room sensor failure alarm will re...

  • Page 33: Multiplexed Inputs

    33 word off should flash. Now press the inc key and the word on should flash on the display. Press the enter key again and on should stop flashing. Repeat this process so the word off is displayed and not flashing. The heating count has now been cleared and the heating count function has been rearme...

  • Page 34: Clock Set

    34 clock set the clock set function is used to set the current time and date as well as enabling daylight saving time. To set the clock scroll through the menu tree, locate the clockset branch, select date, and enter a new date and time. Select dst to enable daylight saving time. Daylight saving tim...

  • Page 35

    35 3. Reset the alarm. Check and note the dc voltage at output for the gas valve modulation. Set the heating setpoint for 130°f. Set the max dat and min dat setpoints for 130°f. Did the burner vdc, displayed on the bacview remote, increase? A. No. Unless the outside air temperature is extremely warm...

  • Page 36

    36 2. Is the room air (room temp) displayed on the bacview remote, reading 150°f or more? A. Yes. The sensor circuit or the sensor itself is shorted. Unplug the input jack from the airelogic controller. Did the display change to -40°f or less? 1) no. There is a short in the controller input. Replace...

  • Page 37: Safety Circuit Open

    37 2) yes. Continue. 5. Is there 24vac on the signal conditioner power terminals? A. No. Determine cause and rectify. B. Yes. Continue. 6. Is there twice the dc voltage on the signal conditioner’s output terminals as there is on the signal conditioner’s input terminals? A. No. Replace the signal con...

  • Page 38: Burner Status

    38 fires at full input. Correct gas pressure and reset switch. If the switch cannot be reset, replace it. See installation, operation and maintenance manual for more information. B. Yes. Continue. 3. Is the high gas pressure switch closed? A. No. Verify the firing rate pressure at full input is as s...

  • Page 39: Burner Hand

    39 a. No. There is an open in the main valve control circuit. Determine cause and rectify. B. Yes. Continue. 7. Is the gas valve/burner status relay’s normally open contact closed? A. No. Replace relay. B. Yes. Continue. 8. Is there continuity at the controller between the burner status terminals? A...

  • Page 40: Flame Failure

    40 alarm code: flame failure this alarm code is not applicable to all unit types. Problem: the controller has received a signal from the flame relay indicating a flame failure. Solution: investigate flame relay 1. Is there a prior alarm such as unit on/fan off, airflow sw., or safety circuit? A. Yes...

  • Page 41: Unit On/fan Off

    41 solution: if fan is not running 1. Is the fan status relay’s normally open contact, closed? A. Yes. Replace relay. B. No. Continue. 2. Is there approximately 5vdc at both controller terminals used for the fan status? A. Yes. There is a short in the wiring between these terminals. Determine cause ...

  • Page 42: Check Airflow Switches

    42 a. No. Replace relay. B. Yes. Continue. 5. Is the motor overload relay tripped? A. Yes. Determine cause, rectify and reset. B. No. Continue. 6. Is the motor starter energized? A. No. There is an open or break in the wiring. Determine cause and rectify. B. Yes. Check motor and motor wiring. Alarm ...

  • Page 43: Clogged Filter Switch

    43 a. No. Verify all associated ductwork is installed as designed, and there are no obstructions. Continue. B. Yes. Continue. 4. Does the fan rpm match that listed on the spec. Sheet? A. No. Correct to increased fan speed and continue. B. Yes. Continue. 5. Are the airflow switches’ sensing tubes obs...

  • Page 44: Insufficient Oa

    44 alarm code: insufficient oa problem: the controller has turned off the burner enable output because the percentage of outside air has dropped below 20% for more than five minutes, and the unit is in the heating mode. This alarm will automatically clear about 5 seconds after the alarm is corrected...

  • Page 45: Room Sensor Failure

    45 7. Remove both of the plastic tubes from the airflow station pressure transducer and gently blow into the high side port. Caution: the transducer is extremely sensitive. Blowing too hard into the sensing tube may damage the transducer. Is there approximately 5vdc across the controller input termi...

  • Page 46: Glossary

    46 example, if the room temperature was 67ºf when the room sensor was disconnected, the displayed room temperature will be 67ºf for approximately 5 minutes. After this period has elapsed, the unit will default to a failsafe mode during which the discharge air temperature will be maintained at 70°f. ...

  • Page 47

    47 menu selection tree for bacview this section will assist the user in navigating the menu functions of the control program. For convenience hotkeys are provided to allow the user to jump directly to a specific menu heading. Simply press and hold the fn key. While holding the fn key, press the numb...

  • Page 48

    48 2. The unit modes screen will appear on the backlit display. The unit ships from the factory with the auto/off/manual parameter set to off. To change this parameter to manual or auto, use the arrow keys to move the cursor so that “off” is selected. When “off” is selected by the cursor, it will ap...

  • Page 49

    49 home setpoints status alarm setpoints hotkey - 3 htg occupied °f range 40-130 htg setback °f range 40-130 htg min da °f range 40-130 htg max da °f range 40-130 clg occupied °f range 40-130 clg setback °f range 40-130 clg min da °f range 40-130 clg max da °f range 40-130 man vent %oa range 0-100 m...

  • Page 50

    50 burner air vdc safety ckt open/closed acteq temp °f maxeq temp °f home alarm resets help alarm hotkey - 1 module event history (100 most recent) o active alarms o active alarms o returned-to-normal o manually cleared o previous resets hotkey - 6 alarm burner reset fan count cooling reset calibrat...

  • Page 51

    51  next  home  logout override o override1 (typical 1 through 2)  use yes/no  start time hr:min  stop time hr:min  month (1-12)  day (1-31)  previous  next  home  logout clockset hotkey - 0 time hh:mm:ss date dd-mm-yy previous dst o start time hh:mm o amount 060 o beg mar 11 2012 end no...

  • Page 52

    52 user configurable output hotkey - 8 user control setpoint user input variable user output % pid select direct acting / reverse acting high input value low input value maximum user setpoint minimum user setpoint previous home setpoints help unit setup hotkey – 9 access to the unit setup page requi...

  • Page 53: Appendix I

    53 appendix i 10kΩ thermistor output curve.

  • Page 54: Appendix II

    54 appendix ii airflow station layout.

  • Page 55: Appendix III

    55 appendix iii i/o zone 583 controller specifications power requirements 24vac ± 10%, 20va network communication bacnet (arcnet and ms/tp), modbus rtu, or n2 bus at up to 76.8k baud or 156k baud over arcnet. Lonworks and ethernet using plug-in communications board. User interface mdt: modulating di...

  • Page 56: Appendix IV

    56 appendix iv i/o zone 583 controller battery checkout the battery on the unit control module retains the controller’s memory in the event of power failure. The 10-year lithium cr2032 battery provides a minimum of 10,000 hours of data retention during power outages. Remember to check the battery pe...

  • Page 57: Appendix V

    57 appendix v control system field conversion the unit can be converted to a different control system in the field. Locate the unit’s current control system in the “from” column and the new control system in the “to” column that is in the same row as the current control system. Follow the steps outl...

  • Page 58

    58 from to mdt (cont.) mrt-expert (continued) 4. Wire the room sensor into the four-wire rnet input on the left side of the unit control module. 5. Change the control system parameter on unit modes screen of bacview to mrt. Mdt-expert 1. Order a bacview remote panel from the factory and plug it into...

  • Page 59: Typical Wiring Schematic

    59 typical wiring schematic recirculating wdf model diagram.

  • Page 60

    60 non-recirculating wdf model diagram.