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Type: Posts; User: richper

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  1. Replies
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    486

    Just the grills

    Just the grills
  2. Replies
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    486

    Condensating defussers

    I have a facility with several areas where the defussers are dripping during certain humid days. The typical system consists of constant volume RTU's serving individual zones. The returns are ducted...
  3. Replies
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    3,050

    I agree J P,but it seems that the controls are...

    I agree J P,but it seems that the controls are keeping the machine on, looking for dehumidification.That being said, would'nt you want to set up the controls to keep the EXV open? I've had great...
  4. Replies
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    3,050

    This is all very confusing. The O.P. states that...

    This is all very confusing. The O.P. states that the E.X.V. is 100% closed when in hot gas mode.That being the case how the heck can the system dehumidify with a closed metering device? Next, what...
  5. Thread: Liebert

    by richper
    Replies
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    694

    Sorry D. V.L. stands for Delaware Valley Liebert.

    Sorry D. V.L. stands for Delaware Valley Liebert.
  6. Thread: Liebert

    by richper
    Replies
    4
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    694

    call D. V. L. in Bristol P.A. They are very...

    call D. V. L. in Bristol P.A. They are very helpful
  7. Thread: South Jersey

    by richper
    Replies
    23
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    2,946

    He y ascj , How's your'e burner woes going?...

    He y ascj , How's your'e burner woes going? Haven't heard ,just wondering if the rtu. burners are burning .
  8. Thread: Carrier RTU

    by richper
    Replies
    13
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    1,556

    Per sight rules you cant give to technical advice...

    Per sight rules you cant give to technical advice here.Please establish yourself as a pro. member and post in the wright area.Anyway,get the o.&m. manual for the unit and it will tell you the...
  9. Replies
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    4,478

    The system is time initated temp. terminated. The...

    The system is time initated temp. terminated. The timer should advance thru unassisted.The 60 min. setting you speak of is a fail safe setting and should not be looked at as a primary defrost...
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    961

    WHAT??????????????

    WHAT??????????????
  11. Replies
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    4,478

    Sorry if I offended you but, from your original...

    Sorry if I offended you but, from your original post it sounded like you are not very familiar with this type of system and well what J.P. said....Dito.
  12. Replies
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    1,375

    I use the Tech-Mate, D-Tech"s cheap little...

    I use the Tech-Mate, D-Tech"s cheap little sister.Works great on all cfc's,hcfc's and hfc's except I seem to have trouble with 134a,dont know why?As far as 22 and nitro.,I dont see a problem as long...
  13. Replies
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    4,478

    sounds like your'e in way over your'e head.Obtain...

    sounds like your'e in way over your'e head.Obtain a qualified repair person!!!!
  14. WHATS WRONG WITH R-414B!!!!!!!!

    Some one please tell this old tech why hot shot is sooooo bad???????
  15. Im hesitant about using 409a in an indoor hot...

    Im hesitant about using 409a in an indoor hot ambient due to it's higher head pressures
  16. so what problems are being encounterd with hot...

    so what problems are being encounterd with hot shot?
  17. Replies
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    822

    This problem may ormay not be control related.You...

    This problem may ormay not be control related.You need to do much more trouble shooting. The compressor may be off on internal overload at the time it is being called to run due to a mechanical...
  18. Thread: line sizing

    by richper
    Replies
    4
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    530

    what's the Goodman's refrigerant 22 or 410? Also...

    what's the Goodman's refrigerant 22 or 410? Also the liquid line is ok but I would not use 5/8 suction,that should be 3/4 or prefered 7/8.You dont mention your'e plans for the evap. as you must...
  19. Replies
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    13,792

    Freeze stat installs after heat coil and any...

    Freeze stat installs after heat coil and any system with outdoor piping and coils shall always be protected with propolyne.. glycol.Think about it, if there is an extended power outage in the winter...
  20. Replies
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    1,450

    It sounds like a restriction of some kind going...

    It sounds like a restriction of some kind going on.I would change the metering device,liquid drier,add a suction drier, evac. to 500 mics.,and weigh in a virgin charge.
  21. Replies
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    1,402

    So I guess what I can gather from all the replies...

    So I guess what I can gather from all the replies thus far is opinions vary as well to be expected,and perhaps a form of high temp. limit may be in order here.????
  22. Replies
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    1,402

    Thanks for the replies,my concern with them being...

    Thanks for the replies,my concern with them being on all the time is about our hot summer days to come and the fact that under such low saturation temps. mass flow rate will decrease causing higher...
  23. Replies
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    1,402

    Crankcase Heaters?

    I changed two compressors this week both at the same site.Same type condensing units,low temp. ..R-404A...walk in freezers...pump down systems..rooftop condensing units..lab.building..maintaining -15...
  24. Replies
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    3,609

    Yes it does have a cch and I did check it and its...

    Yes it does have a cch and I did check it and its working.
  25. Replies
    48
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    3,609

    I agree that comment was un called for...back to...

    I agree that comment was un called for...back to subject at hand..My reason for leaving the ranco on the unit was fear of the oem non adjustable pressurestat not making the 35# cut in during a repeat...
  26. Replies
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    3,609

    Update!!!!

    Went back this morning.Guess what......Glass bubbling like crazy...Fixed leak at T.X.V....changed drier..evacuated...charged to proper level and added 5# more winter charge as per russel...
  27. Replies
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    3,609

    Guys Im sorry if I came off as having an...

    Guys Im sorry if I came off as having an attitude.I try to do things the right way and thats why the post.I truly apreciate the help.I dont have C. M. status and extend the utmost respect to any one...
  28. Replies
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    3,609

    No hot gas line was only warm iinto valve at that...

    No hot gas line was only warm iinto valve at that time.Asfar as valve numbers I am going back today and will get them.As far as every thing else,I know this fix was not right and oem does not want...
  29. Replies
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    3,609

    The glass was bubbling violently before blocking...

    The glass was bubbling violently before blocking the col.
  30. Replies
    48
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    3,609

    No sir I dont ,But if the oem puts a l.p.switch...

    No sir I dont ,But if the oem puts a l.p.switch on it that wont make the cut in what was I suposed to do?Also if the head master was not dumping hot gas into the receiver to maintain head then it is...
  31. Replies
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    3,609

    Wait a second ...If the glass cleared after a...

    Wait a second ...If the glass cleared after a couple ounces how can it be that low? also I did fail to mention that there was no t. d. across the head master bypass line which means it was not by...
  32. Replies
    48
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    3,609

    Do you mean to say practice what I preach? Or you...

    Do you mean to say practice what I preach? Or you think she"s under charged? I'll admit my fingers were frozen and I did not go all the way but back to the question at hand please.
  33. Replies
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    3,609

    Hey ascj.....Thats my QUOTE...... WHAT DO YOU...

    Hey ascj.....Thats my QUOTE...... WHAT DO YOU MEAN...about the customer paying?
  34. Replies
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    3,609

    Head master not enough?

    Went on a walk in medium temp. acouple weeks ago. Box at 65 on arrival,liqud line solinoid calliing. Go on roof to find a one horse hermetic Russel cond. unit with a oem hed master and oem non...
  35. Replies
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    1,615

    Whats your voltage off the transformer? you wrote...

    Whats your voltage off the transformer? you wrote 77. Also does it only do it when you have the panel off? If so you may have a damper or air flow issue such as blocked coils.
  36. Thread: hot gas bypass

    by richper
    Replies
    3
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    1,222

    More info. please. Pressures, temps, etc. Try...

    More info. please. Pressures, temps, etc. Try isolating valve and watch your suction ,valve may be doing its job due to low charge or starving evap. from improper metering. Again a little more info...
  37. Replies
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    controling head pressure is just part of the...

    controling head pressure is just part of the solution.In this situation I would also install a crank case heater and install pump down and posibly a hot gas bypass valve to insure compressor...
  38. Replies
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    15,483

    I've had it!!!!!!!

    How come all you guys are so quick to jump all over some one looking for some guidence? Is it because everyone is so full of themseves or just rude?I bet most of you guys are the type of person who...
  39. Replies
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    2,865

    flotronic

    I would confirm flow thru barrel. Is it approx. 3.2 gpm per ton?I also would analize each compressor individualy under a full load. Is each compressor mechanicaly in tact? The only way to determine...
  40. Replies
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    1,150

    Thanks for all the advice,going back tomorow will...

    Thanks for all the advice,going back tomorow will keep you posted
  41. Replies
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    1,150

    hey, york 56,can you tell me where your,e located...

    hey, york 56,can you tell me where your,e located in the state ? We may solicit your'e help if your'e interested.
  42. Replies
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    1,150

    We tried that and it did not work. It faults out...

    We tried that and it did not work. It faults out right away.Please keep thouse suggestions coming cause york tech support is not much help.
  43. Replies
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    1,150

    york screw machine

    We are having a problem with a Latitude Model # YCAV0207SA46VAACSTOXXXLXXXX42. Serial# REPMO11352. The alarm is low motor current and is preventing both circuits from starting.We have performed all...
  44. Replies
    6
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    5,764

    sticking reversing valves

    I would check with the oem. May be a system related problem. How many units are on the job compared to how many are doing this?If the problem is isolated to only a few then thats one thing ,but if it...
  45. Replies
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    25,014

    proper charge?

    Any systems proper charge can and should be determined by measuring operating superheat and subcooling.But you must have proper air or water flow thru both exchangers. Also the system must have...
  46. Replies
    6
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    1,644

    Thanks for the info.It looks like we are at the...

    Thanks for the info.It looks like we are at the upper limits of it's temp. rating here and probably not the best choice for this application. HAPPY-NEW-YEAR!!!!!!!!
  47. Replies
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    1,644

    Before you rip me a new one again you should know...

    Before you rip me a new one again you should know that we have used this product for years in industrial applications mostly insulating steam heat exchangers.I know the product works very well...
  48. Replies
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    1,644

    bubble wrap duct insulation

    We replaced a heat xchanger on a 5 ton gas fired roof top .The exsisting insulation in the exchanger compartment was destroyed,all dry rotted and appeared to be burnt .I ripped the old stuff out and...
  49. Replies
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    838

    water reg. valve.

    The valve in question will open on a rise in discharge pressure.When the compressor shuts down the valve will stop all water flow if it is adjusted properly. When the system is water piped it should...
  50. Replies
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    It sounds like your rep is not the man for thiis...

    It sounds like your rep is not the man for thiis job. I would change the moisture indicator and drier, run an acid test,recover the refrigerant and evacuate the circuit with the black glass not in...
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