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    Do you have history on these Ken? I have heard...

    Do you have history on these Ken? I have heard some things, but would like to verify some as well.
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    Aliso Viejo... but they are famous, so you are...

    Aliso Viejo... but they are famous, so you are thinking of the same ones most likely.
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    didn't just put them in... about 10 years old......

    didn't just put them in... about 10 years old... I just took this property about 3 months ago. I don't care about the money, its not mine. Property management who has owned the property for about 2...
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    The way the pans are stacked and the rows of...

    The way the pans are stacked and the rows of Evaps and different heights may be an issue... and if they are balking at $1000, imagine when I propose a UV light system. I may be able to use IAQ as...
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    Drain pan tabs.

    So... I have 4 200 ton AAON units with 8 R22 circuits each in 2 commercial office buildings. I also have 1 pan for each circuit. Just got quoted about $1000 for pan strips for all 4 units. Does...
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    So in summation. If you are certified with a 609...

    So in summation. If you are certified with a 609 (automotive refrigerants) or 608 (disqualifying you from working on automotive refrigerants), then you know that only R134a and R12 are allowed...
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    I have a simple (hopefully) question. I have an...

    I have a simple (hopefully) question. I have an Alerton system Envision/Baktalk 2.6 with Microset II t stats. I get a code every now and then while trying to recover an address at the tstat. COOH....
  8. I have done that with the supply fans but I guess...

    I have done that with the supply fans but I guess I have to try a longer time and to slow the acceleration. With our current temps at start up and the static pressure required by the Watt master it...
  9. AAON RL 200 power exhaust drive faults

    okay.. at my wits end. I have 4 AAON RL series. Each have 2 power exhausts. both power exhausts run on a common Yaskawa drive. Everyday I visually check the units at 7am and the Wattmaster...
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    Gas pressure in manifold was almost double the...

    Gas pressure in manifold was almost double the specs. Got 6.6 in/wg and spec is between 3.2 and 3.8 in/wg. Now it smells like a Prius! Checked the next unit and it was also off a hair. Now only 5...
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    I inspected both heat exchangers last night. ...

    I inspected both heat exchangers last night. Both looked good. I have 7 identical unots for the ballroom and only these 2 are having this issue. The exhaust Ports are blackened on both as well. I...
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    There is an adjustment screw on the gas valve. ...

    There is an adjustment screw on the gas valve. Im thinking that manifold pressure is to high and thats where the problem may lie.
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    Bryant 7.5 ton heating exhaust issue

    I have a Bryant 7.5 ton that when heating it works great... But the exhaust is really potent. Almost like the mixture is off. Cleaned the 3 burner tubes, but still smells like a muscle car exhaust...
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    Okay... lets get this straight. You guys...

    Okay... lets get this straight. You guys couldn't help me... and that is okay. I am fine with it, seriously. I made a joke about myself and needing a rolodex to do my job (joke at my expense) and...
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    Maybe I came across wrong. There was no sarcasm....

    Maybe I came across wrong. There was no sarcasm. It was meant to be humble. I called out a pump specialist and he gave me his suggestions. Note I never mentioned the cavitation until my last...
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    Well I would like to thanks everyone for...

    Well I would like to thanks everyone for understanding my situation and asking me more questions that help me side track from my original problem... Cavitation. I ended up running one pump at a time...
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    Here is what I have found. D.P. 45 psi Imp....

    Here is what I have found.

    D.P. 45 psi
    Imp. Size. 9"
    I also found that the Heat Exchangers are rated at 1250 gpm each and there are 2.
    Pump curve chart available and indicates that the NPSH...
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    I can get those and maybe even some pics monday. ...

    I can get those and maybe even some pics monday. I can also show your the distance we are talking between the component.

    Thanks.

    And I totally understand the reason alcohol is consumed now.
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    The guage is a 0-100 and about 4' before the...

    The guage is a 0-100 and about 4' before the strainer. The strainer is located immediately prior to the impeller housing. I can guarantee I am in vacuum... how much... not sure. I was told by a...
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    I just calculated the NPSH and found it to be...

    I just calculated the NPSH and found it to be -4.56 but do not know the NPSHR. Wondering if I did it wrong... if anyone can help me it would be greatly appreciate it.

    thanks.

    Matt
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    Well I guess I am trying to circumvent all the...

    Well I guess I am trying to circumvent all the politics. I am hired under an engineering services contract. Working with the propert manager is impossible. The past contractors are less than...
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    Unfortunately the heat exchangers do not have a...

    Unfortunately the heat exchangers do not have a GPM rating and have not had a chance to contact the manufacturer. In fact I have never heard of this brand of heat exchanger. They are Sonex model...
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    they are parallel. They are open to atmosphere...

    they are parallel. They are open to atmosphere on the suction side. there is grating on the suction diffuser at the cooling tower. The suction line is 8" and only about 1 1/2' about the suction...
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    Issue with CWP's

    I just started at a new building and they handed me keys and my areas of responsibility. Of course my first stop in the main plant to see what I have. I have 2 marley cooling towers, with 2 aurora...
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    What about...

    Honeywell MP909D series pnuematic actuators, T970A DA thermostats? I am also looking for linkage for the actuators if you have that also.

    Matt
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