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Thread: Alert Help

  1. #1
    Regular Vistor
    Join Date
    Jan 2018
    Location
    Atlanta, GA
    Posts
    21

    Question Alert Help

    Thanks in advance for your help...

    Issue

    • I would like to alternate my return pump and my back up pump 23 hrs :1 hour ( I think I coded this ok)
    • I would like to get alerts if my ReturnPump fails but not when it happens normally (This is where I am struggling. If I use the Flow meter (RtPump) or % output, or LowFlow (Virtual Outlet) as the alert it goes off when the pump switches over?
    • Goals
    • COR-20 (ReturnPump) to be on 23 hours In Normal Operation
    • COR-15 (BackupPump) to be on 1 hour in Normal Operation
    • I would like the COR-15 to automatically turn on if the COR-20 fails or is off (I can turn off manually at Maintenance time.
    • In a Power Outage I would like them to work the same way i.e. backup comes on if the primary is off...but at a reduced speed which is in the Profile COR_Slow)


    Nomenclature
    • RtPump is 1” Flow meter Normal operation is about 450 gph. This is on the COR-20 not the COR-15 (I might be able add an additional flow meter or re-plumb for this to be on the return line n the future??
    • LowFlow is virtual outlet
    • ReturnPump is COR-20 and has 1: flow meter
    • BackupPump is COR-15 has separate return line to the tank no flow meter.
    • OVRFLO is an optical switch on my mesh in case it starts to overflow
    • LeakCA and LeakFL are leak detectors in cabinet and on floor
    • COR_Slow is a ramp profile to run at 25% flow of the COR 15+20 Pumps (I presume I can use one profile)


    LowFlow- Virtual Outlet ?????
    Set OFF
    If RtPump < 100 Then ON
    If Output ReturnPump Percent < 25 Then OFF
    Defer 000:10 Then ON
    Defer 000:05 Then OFF
    When On > 000:02 Then ON

    ReturnPump
    If Power Apex OFF 001 Then COR_Slow
    If Time 23:00 to 23:59 Then OFF
    If FeedA 001 Then 40
    If OVRFLO CLOSED Then 0
    If Output LowFlow = ON Then OFF
    If Error ReturnPump Then OFF

    BackupPump
    If Power Apex OFF 001 Then COR_Slow
    If FeedA 005 Then 1
    If OVRFLO CLOSED Then 0
    If LeakCa CLOSED Then 0
    If LeakFL CLOSED Then 0
    If Output ReturnPump = OFF Then 100
    If Output ReturnPump = ON Then OFF

    Thanks again and I am open to other simplifications...

  2. #2
    Frequent Contributor zombie's Avatar
    Join Date
    Dec 2013
    Location
    Denver, CO
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    13,176
    I would change the order so that leaks and overflow lines are at the end to override if the main return was stopped because of a leak.

    You might be an engineer if...You have no life and can prove it mathematically.

  3. #3
    Regular Vistor
    Join Date
    Jan 2018
    Location
    Atlanta, GA
    Posts
    21
    Thanks. That makes sense. Appreciate the feedback.

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