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  1. #1
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    Alerton Envision

    Anyone out there know where I can get a copy of the Alerton programmers guide (LTBT-TM-PRGRMR) on CD or PDF?

  2. #2
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    You can just sign up for the Alerton support network and they have everything you need.
    http://asn.alerton.com/
    I could email it to you too.

  3. #3
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    I'll try it.. thanks
    Do I have to be an Alerton Dealer?

    I don't want to be an Alerton Dealer... I just want the manual.
    Last edited by AutoPilot; 09-07-2007 at 04:08 PM.

  4. #4
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    Honestly I'm not sure. I don't think you have to be a dealer, but I could be mistaken. Let me know how it works out. If need be I can email it to you.

  5. #5
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    beardenbc

    I tried to Log into the site and it asks for the reps email.. I don't know who the rep is. can you email the file...
    Thanks

  6. #6
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    I certainly can. File is on the way now.

  7. #7
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    Lemme know if you've got any questions. Alerton DDC is about 90% of my job so I can fill in anything that it doesn't cover.

  8. #8
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    Thanks
    This will be a big help.. Do you know if there are any docs on the microset.
    You know the... Blank blank room on warmer.... stuff? I seem to remember one could set the max airflow on a vav box.

  9. #9
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    beardenbc

    beardenbc Lemme know if you've got any questions. Alerton DDC is about 90% of my job so I can fill in anything that it doesn't cover.


    Can you answer my other thread regarding getting a blank screen when
    using remote desktop?

  10. #10
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    Quote Originally Posted by AutoPilot View Post
    Thanks
    This will be a big help.. Do you know if there are any docs on the microset.
    You know the... Blank blank room on warmer.... stuff? I seem to remember one could set the max airflow on a vav box.
    The best way I've found to do that is through the envision interface rather than through the microset. The microset way is kinda complicated, plus you have to ensure that the BV for service mode is active.

    I would go to the screen for the vav box, and assuming that the screen is stored in the local job's folder instead of the alerton standard folder, you should be able to edit it. Add a button (push button selector, type= device template, same device, select use display from Alerton/Standard, display number 82330000) that links you to the airflow screen for the VAV box. You can just leave the pushbutton screen there, or you can grab those values and paste them on the main graphic. Now, assuming that the DDC in the VAV is for the most part standard, here are the vaues you would use for calibration/air balancing:
    Max AF = AV-67
    Force Max AF = BV-11
    Min AF = AV-68
    Force Min AF = BV-9
    Reheat/Fanstart AF = AV-66
    Force RH AF = BV-10
    Box Size (inches) = AV-250
    Calibration factor = AV-252
    Zero velocity cutoff = AV-251
    I'll have a look to see where the microset info is at, but I think it's probably in the operator's manual if not the programmers guide. I'll let you know if I find it.

  11. #11
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    Thanks for info..
    The problem is these vavs are not on the network.. They are stand-alone as the contractor was way late and never ran any comm cable.

    Since the contractor never finished the job.. He didn't get paid and there are no as-built drawings.

  12. #12
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    I was able to find this in the Programmer's guide:
    Programmer’s Guide and Reference | BACtalk Systems
    46 © Novar Controls Corporation. All Rights Reserved. LTBT-TM-PRGRMR Rev. 0008
    Field Service Mode
    The Microset may be used to access important control points within a VLC. If
    BV-68 (Field Service Lockout) is OFF, it will be possible to enter Field Service
    mode by pressing the buttons on the Microset in a special sequence. The
    BACtalk Microset differs from the IBEX Microset in that two Field Service
    modes are available. Also note that the decimal point to the right of the Field
    Service codes displayed at the Microset denote a default fixed code. Any custom
    codes that you set up will not have a decimal point.
    Pressing the button sequence BLANK-BLANK-ROOM-ON-WARMER allows
    access to the normal Field Service mode. The Hot and Cold Flow CFM settings
    are read-only. The default fixed codes listed in Table 6 are available in addition
    to any custom codes set up in the DDC header (see “Microset Field Service
    mode custom codes” on page 155).
    Custom codes can be entered in the DDC device settings header. You are allowed
    to assign a custom code for up to 26 BI, BV, AV, BO, or AO objects. For each
    entry, you can specify whether the number will appear with or without one
    decimal place, and if the item is to be read-only. Items can also be restricted to
    positive numbers only. Note that if a BI, BV, or BO is specified, an ON value is
    represented on the Microset as .1 and an OFF value is 0. You must therefore
    activate the decimal point for binary items.
    VAV Box Field Service Mode
    The button sequence BLANK-BLANK-ROOM-ON-COOLER enables a special
    VAV Box Field Service Mode, which is used for balancing. This mode allows
    access to the codes listed in Table 7 as well as entries 0–3 (for Microset v1.15) in
    the Microset Field Service Mode Setup screen of VLC DDC (entries 0-4 apply
    for Microset II v1.17). See “Microset Field Service mode custom codes” on
    page 155, for more information.
    Table 6 Default fixed codes for Microset Field Service Mode
    Code Meaning Associated Data Point
    UC. Unoccupied Cooling Setpoint AV-95
    UH. Unoccupied Heating Setpoint AV-96
    CO. Cooling Offset AV-93
    HO. Heating Offset AV-94
    CS. Current Cooling Setpoint AV-99
    HS. Current Heating Setpoint AV-100
    AL. After-hours Limit AV-97
    HI. Setpoint High Limit AV-91
    LO. Setpoint Low Limit. AV-92
    SP. Current Setpoint AV-90
    CF. Cold Deck cfm (read only)
    HF. Hot Deck cfm (read only). Dual
    duct only.
    Chapter 4 | Programming VLC DDC for the BACtalk Microset and Microtouch
    © Novar Controls Corporation. All Rights Reserved. LTBT-TM-PRGRMR Rev. 0008 47
    CF and HF (if applicable) show the current cfm, which can be adjusted by
    modifying the calibration factor (k) during balancing. While in VAV Box Field
    Service Mode, the WARMER and COOLER buttons change the k factor in
    increments of ± 0.01, while the ROOM and OUTSIDE buttons change the k
    factor in increments of ± 0.1. Using the VAV Box Field Service Mode, you can
    adjust the k factor until the CF and HF readings match those from a balancing
    hood.
    Use VLC DDC to view the value of the k factor (see “Setting parameters for a
    VAV airflow sensor” on page 156).
    Table 7 Additional default fixed codes for VAV Box Field Service Mode
    Code Meaning Associated Data Point
    HI. Setpoint High Limit AV-91
    LO. Setpoint Low Limit AV-92
    SP. Current Setpoint AV-90
    SC. Cold Deck Box Size
    SH Hot Deck Box Size
    (Dual Duct only)
    CF. Cold Deck cfm Range is 0-32767
    HF. Hot Deck cfm (Dual Duct Only) Range is 0-32767
    and on page 156 I found:
    Microset Field Service mode custom codes
    VLCs enable you to set up custom field service codes for the Microset. Using
    this feature, you can display and change the value of AI (read-only), BI (readonly),
    AV, BV, AO, and BO objects from the BACtalk Microset. You can set up
    to 26 field service mode codes.
    In Field Service mode, a series of two-character codes correspond to each object.
    You select the objects to be displayed and choose the codes that identify them
    using the Microset Field Service Mode Setup screen (F6 Microset Field Service
    Mode Control Table from the DDC Header menu).
    Entry Identifies the entry and can’t be edited. In Field Service mode, entry 0
    appears first, entry 25 appears last.
    Display Code The two-digit code to be displayed at the Microset. Limited to
    acceptable characters and must be two characters. Press F5 to view the list of
    acceptable characters or use the following reference. Position the cursor in this
    field, press Enter, and then type acceptable characters.
    Point ID Defines the VLC data point whose value will be associated with the
    display code. AI, BI, AO, BO, AV, and BV are acceptable point types. Position
    the cursor in this field, press Enter, and then type an acceptable point type. Press
    Enter again and type the point’s instance (for AI 1, type 1, for example). Make
    sure the point you reference actually exists in the VLC.
    Table 48 Acceptable Microset Field Service mode characters
    0 1 2
    3 4 5
    6 7 8
    9a
    a.The characters 9 and g are virtually indistinguishable on the Microset display.
    A b
    c C d
    E F g
    h H i
    J L n
    o p r
    u U y
    - _
    Programmer’s Guide and Reference | BACtalk Systems
    156 © Novar Controls Corporation. All Rights Reserved. LTBT-TM-PRGRMR Rev. 0008
    Writable Determines whether the value will be writable from the Microset
    (YES) or read only (NO). Position the cursor in the field and press Enter to
    toggle the value. AIs and BIs are not writable.
    Decimal Determines whether the Microset will show the value with a decimal
    (YES) or without one (NO). Position the cursor in this field and press Enter to
    toggle the value.
    CAUTION The BACtalk Microset displays OFF values as 0 and ON values as
    .1. You must set the Decimal field to YES to view or change binary values at the
    Microset.
    Positive only Determines whether only positive values can be displayed (YES)
    or negative values as well (NO). Position the cursor in this field and press Enter
    to toggle the value.
    Setting parameters for a VAV airflow sensor
    VAV controllers have a special screen in the VLC DDC program for setting up
    airflow sensor parameters. In this configuration screen, you specify a box size, a
    calibration factor, the point below which airflow should read zero (zero cutoff),
    and the values of AI-8 and AI-10 (for dual duct VLCs), or AI-10 (for single duct
    VLCs).
    Note You can also adjust the values for the hot duct and cold duct calibration
    factors from the BACtalk Microset using the Microset Airflow Calibration
    mode.
    This is a one-time setup you perform for each VAV VLC; the setup is stored in
    the VLC independently of DDC or header information. This configuration
    affects the values that represent airflow for VAV VLCs.
    Note The program units setting (English or metric) in the Analog Input Setup
    screen (see “AI setup” on page 152) determines whether AIs report airflow in
    cfm or lps, and whether temperatures are reported in degrees F or C.
    ! To set up airflow parameters for a VAV VLC
    1. Make sure you select the Device ID of the VLC you want to work with
    in the Configuration screen. Also, choose F2 Read File to retrieve the
    existing setup data from the VLC so you do not inadvertently overwrite
    an existing setup.
    2. From the VLC DDC Main menu, choose F1 Configure.
    3. From the Configuration menu, choose F3 VAV Flow Sensor.
    The VAV Flow Sensor Setup screen appears with fields for entering a
    box size, calibration factor, and velocity zero cutoff for both the cold
    duct and the hot duct. For single-duct VAV controllers (SD), only the
    cold duct information is used.
    4. Position the cursor in the field you want to edit, press Enter, and then set
    parameters according to the following guidelines.
    Chapter 9 | DDC header file setups in VLC DDC
    © Novar Controls Corporation. All Rights Reserved. LTBT-TM-PRGRMR Rev. 0008 157
    Box diameter The box diameter of the VAV box to be controlled by this VLC.
    Enter this value in inches or centimeters as appropriate for English or metric
    setup in the AI Setup screen (see “AI setup” on page 152). Obtain box diameter
    data from the VAV box manufacturer. The box diameter represents the round
    duct equivalent diameter of the duct where the pressure pickup is located.
    Calibration factor Adjusts the VLC airflow readings to match the specific VAV
    box, airflow pickup, and conditions of an installation. Increasing the value of the
    calibration factor will increase the value of the corresponding airflow (AI-8 for
    hot duct flow, if applicable; AI-10 for cold duct flow).
    The calibration factor for each duct should be adjusted until the corresponding
    airflow matches the airflow measured using a balancing hood. The default value
    for the calibration factor, 1.00, accounts for no pressure loss in the tubes.
    Increase the calibration factor to compensate for tube loss.
    Velocity zero cutoff This value is entered in percent of full airflow (0-100).
    Airflows lower than the cutoff are reported as zero. This feature eliminates nonzero
    airflow readings due to ambient fluctuations when the main fan is off.
    ! To send data to the VLC
    • When you finish, press F1 to send the VAV airflow setup
    information to the VLC.
    I'm not sure if that's really much help. If you have something that you can use to interface with the mstp connector that may do the trick. Usually I leave that stuff up to the air balance guys to deal with, and only tweak it if they messed up, in which case I usually have a network to hit them through.

  13. #13
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    Sep 2006
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    5
    Can you also send file to me? I would like to get manual.

    Thanks
    Mike

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