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Type: Posts; User: Jerry Jessup

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  1. Replies
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    I have emailed you the manual.

    I have emailed you the manual.
  2. Thread: John Zink

    by Jerry Jessup
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    944

    Is that from the 06 portion of the model number?

    Is that from the 06 portion of the model number?
  3. Thread: John Zink

    by Jerry Jessup
    Replies
    3
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    944

    John Zink

    I have encountered an old John Zink rooftop unit. The model number is ADA-RCG-0601-23-1401-EC. Does anyone have any information on what size and voltage this unit is based on the model number?
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    513

    Water Source Heat Pump

    Does anyone have information on a Mammoth water source heat pump? The model number is G043HHGF. We are having issues with the control boards.
  5. Replies
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    677

    York Wiring Schematic

    Does anyone have a wiring schematic for a York Model #D1HG060NO7925BDA gas/electric package unit?
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    560

    Closed Loop Pump

    Does anyone know were I can find an IOM manual or rebuild manual for a 3BH-150P1 Weinman Pump?
  7. Thread: Metasys

    by Jerry Jessup
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    1,185

    Metasys

    I have a Metasys NTU 102. Does anyone know what the factory password(s) are for Johnson Controls when using the Network Terminal?
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    747

    5 Ton AAON Unit

    In the attached document could someone explain why Aaon has the static pressure and TSP labeled the same? I thought static pressure and total static pressure where two different readings.
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    1,263

    Thanks y7turbo.

    Thanks y7turbo.
  10. Replies
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    1,263

    Velocity in FPM

    If a unit has a backward curved fan and is supplying 2020 CFM with a total static(measured at fan) of 1.1 how do you calculate the velocity in Feet Per Minute?
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    1,173

    I'm trying to explain the importance and...

    I'm trying to explain the importance and correlation of duct static to unit performance to my boss without using too technical terms (he doesnt know much about HVAC just construction.)
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    1,173

    Total Static Pressure

    Where is the best place in a system to check Total Static Pressure and Static Pressure?
  13. Replies
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    1,741

    Ok Blabath you caught me on a...

    Ok Blabath you caught me on a technicality.:cheers:
  14. Replies
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    1,741

    A technician that knows what an " Eddie Current...

    A technician that knows what an " Eddie Current Test " is, signs of a true professional.
  15. Replies
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    2,625

    One way to test is to turn off the unit, unplug...

    One way to test is to turn off the unit, unplug the economizer board plug from the main control board and then turn the units disconnect back on. If the blower comes on then replace the economizer...
  16. Replies
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    2,625

    The Trane unit I was working on had the same...

    The Trane unit I was working on had the same symptom. I also thought it was the main control board at first, but after some reading I found that I had a faulty economizer board. I purchased a new...
  17. Replies
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    2,625

    I ran into this type of problem just 3 weeks ago...

    I ran into this type of problem just 3 weeks ago on a Trane unit. Does the unit have an economizer?
  18. Replies
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    1,332

    aNtHoNyNoZ, I have attached an artilce on...

    aNtHoNyNoZ,
    I have attached an artilce on the EXV.
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    1,332

    If the proper valve size is selected it should...

    If the proper valve size is selected it should work. But, you can't reduce the capacity any lower than 50% or oil not getting back to the compressor could cause bigger probelms
  20. Replies
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    1,332

    Have you looked into putting in a Rawal Valve?

    Have you looked into putting in a Rawal Valve?
  21. Replies
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    3,913

    The website will give you date,time and locations...

    The website will give you date,time and locations the classes are being held , but I dont think they have web based training.
  22. Thread: AAON Unit

    by Jerry Jessup
    Replies
    31
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    4,504

    The ones I am looking at are 8 tons ,we are...

    The ones I am looking at are 8 tons ,we are having issues with a pulsating sound in the conditioned space. I am thinking that no one has referenced the fan curve sheet and the static pressure and or...
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    I have worked on many Lieberts and as long as the...

    I have worked on many Lieberts and as long as the piping has been installed properly and the units have been started up properly, they are very reliable. All that needs to be done is proper...
  24. Thread: AAON Unit

    by Jerry Jessup
    Replies
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    4,504

    Texas Tech it appears that from what you have...

    Texas Tech it appears that from what you have encountered and match the problems we are having with our AAON units. It appears that the fan curve that comes with the units, must be followed through...
  25. Thread: AAON Unit

    by Jerry Jessup
    Replies
    31
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    4,504

    The start up is performed before the air balance...

    The start up is performed before the air balance so, I'm assuming that the fan curve would be referenced after the air balance to insure it is in the "stable" region or wait to for complaints to...
  26. Thread: AAON Unit

    by Jerry Jessup
    Replies
    31
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    4,504

    How important is the fan curve sheet that comes...

    How important is the fan curve sheet that comes with the AAON units? Should it be referenced when performing the start up or is it more for the air balance company.
  27. Thread: AAON Unit

    by Jerry Jessup
    Replies
    31
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    4,504

    I retract my statement of "high end", it just...

    I retract my statement of "high end", it just seemed as they were since they are custom built and when our company installs for companies like Walmart , La-Z-Boy and other national companies the...
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    Kon99lbi, If you get the chance I recommend...

    Kon99lbi,
    If you get the chance I recommend going to the Liebert training course. They show you the everything on how Lieberts operate and how to manipulate the board in ways that are not...
  29. Thread: AAON Unit

    by Jerry Jessup
    Replies
    31
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    4,504

    AAON Unit

    I know AAON units are considered "high end" units but are they really worth what they cost?
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    Glad to help.

    Glad to help.
  31. Replies
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    I have emailed you a zip file that contains the...

    I have emailed you a zip file that contains the manual and schematics.
  32. Replies
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    3,913

    I found the book on your unit. According to the...

    I found the book on your unit. According to the model number it's a Callenger / Up-flow / 8 ton / Air Cooled / 4 step DX /460 volt 3 phase / Advanced Microprocessor unit. I will scan it in and send...
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    I have several Liebert Factory Manuals with...

    I have several Liebert Factory Manuals with schematis. If you have the unit model number I can send them to you.
  34. I recommend never going back to a previous...

    I recommend never going back to a previous employer. I have found that as soon as you go back they realize that they have you right were they want you. They will likely feel that you came back to...
  35. Thread: Too cold

    by Jerry Jessup
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    400

    Too cold

    Found issue for to cold call. Maybe cubicle removers do not make the best HVAC guys.
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    I have not been to the Daiken School but, I did...

    I have not been to the Daiken School but, I did go to the City Multi school for Mitsubishi. Both Daiken and the City Multi have the same concept. The engineering behind the development of the two...
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    Bristol Inertia Compressor

    I have been researching Bristol's Inertia compressor and fiound that the biggest issue they had was excessive noise. The design seems solid, has anyone ran into any mechanical issues with them?
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    Unplugging the economizer board did indeed get...

    Unplugging the economizer board did indeed get the unit back online. I have ordered a replacement board.
  39. Replies
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    Thanks jimj this is exactly what I was looking...

    Thanks jimj this is exactly what I was looking for!
  40. Replies
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    Obsolete Trane Thermostat

    Does anyone know where to find a manual on a Trane thermostat model# BAYSENS019A? The thermostat has sliders to adjust the temperature and not push buttons like the next generation Trane thermostats.
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    Trane YCD120

    Thank you Allen for your help.
  42. Replies
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    1,939

    Trane YCD120

    I am working on a Trane YCD120 gas/electric unit. The sensor flashes "SERVICE". The book states this is due to a fan failure. The unit does not have a fan failure switch. I did notice the...
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