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  1. Replies
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    2,457

    sounds like the plug is removed. check the board,...

    sounds like the plug is removed. check the board, the led will blink when your in test mode
  2. Replies
    7
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    1,131

    min. air for electric heat

    Hi fellas, does anyone know the rule of thumb for min. air for an electric heat in a v a v box? mfgr posts a min fpm on the box of 0625. thanks in advance
  3. Thread: daytona

    by oldtimer2
    Replies
    3
    Views
    552

    daytona

    I know this has nothing to do with hvac but, does anyone know how long it takes to get from orlando to daytona on race morning ?
  4. Thread: stafa

    by oldtimer2
    Replies
    1
    Views
    564

    stafa

    Hi guys, Anyone know where I can get a Stafa o/air sensor in the Philadelphia area? I have no specs other than this FWTIG or FWT1G. It sits in an enclosure about the size a hockey puck. Thanks in...
  5. Thread: trane tracer

    by oldtimer2
    Replies
    3
    Views
    465

    trane tracer

    Hello All,
    First I would like to say I am not a computer tech.!! I have a Trane Tracer system. 2 intellapaks with comm failure alarms. also went I went to the front end I could not see any...
  6. Thread: G E profile

    by oldtimer2
    Replies
    2
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    981

    Its new out of the box !!!

    Its new out of the box !!!
  7. Thread: G E profile

    by oldtimer2
    Replies
    2
    Views
    981

    G E profile

    Hi guys, I didn't know where to post this, I thought there was an appliance forum. I have a GE profile ( don't have mod & ser # at this time ) gas fired. when I use the oven or range top I smell...
  8. Replies
    19
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    2,363

    i just had the kid call me. Liebert going off on...

    i just had the kid call me. Liebert going off on internal overload. cooled it off and has-320 head 95 amb. 18-20 subcool 280 discharge temp. I think its over charged. Does 8-10 s.c. and 18-20 s.h....
  9. Replies
    17
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    13,125

    So. I could turn the heat on and get delta T and...

    So. I could turn the heat on and get delta T and use-btu output x 1.08 /delta T to obtain CFM, then use CFM /area of coil in sqft. to obtain face velocity in FPM. Under 350 should be good ?
  10. Replies
    17
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    13,125

    Thanks Klove, as always your responses are very...

    Thanks Klove, as always your responses are very informative and professional
  11. Replies
    4
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    618

    I thought it was the leak issue. I tried the 2x4...

    I thought it was the leak issue.
    I tried the 2x4 several times.
  12. Replies
    17
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    13,125

    I thought you could use pressure drop and coil...

    I thought you could use pressure drop and coil dimensions
    face velocity= square root of p.d. /face dimensions x 4005 ??????
    I can't remember !!!
    coil=4ft x 3.5ft p.d. =.4"wc
  13. Replies
    4
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    618

    Danfoss compressors

    anyone know what the quality issue Danfoss is having with there scroll comps.I tried to get a comp. from Carrier today, said they could not get it for 3 weeks !!! So I tried United, they called...
  14. Replies
    17
    Views
    13,125

    face velocity formula

    Hello all,
    I am having a problem with condensate carry-over, I washed the coil, replaced belts and filters, checked the duct work. I wanted to check face velocity but I couldn't remember formula....
  15. Replies
    9
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    951

    Tried that, did not help much

    Tried that, did not help much
  16. Replies
    9
    Views
    951

    Bryant mod-588ANW036100ADAF ser-3895G80567

    Bryant
    mod-588ANW036100ADAF
    ser-3895G80567
  17. Replies
    9
    Views
    951

    bryant rtu low air flow

    Hi fellas, I was working on a Bryant rtu today. low air flow I had an air hood on my truck from another job so I read the diffusers. 3 ton machine with 9 hits total is 744 cfm !!! So I pulled the top...
  18. Replies
    1
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    2,017

    trane start-up report

    Does anyone have a Trane start-up report for a 40 ton split system? JAUC I think. Installers took the paper work, again
  19. Replies
    25
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    2,198

    Matt, Have you calculated your tonnage of the...

    Matt, Have you calculated your tonnage of the wshp's? Are the hoa switches on the pumps starters in hand or auto? If in hand turn them to auto. see if one of the pumps goes off. If it does you may...
  20. Replies
    22
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    3,650

    I think M-Tech has your answer, the roll-out...

    I think M-Tech has your answer, the roll-out switch, jump it out and see what happens. Your flame rod has to the furthest from your pilot supply, put the flame sensor and the ignitor back the way you...
  21. Replies
    16
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    10,393

    Anyone know how long a heat recovery wheel should...

    Anyone know how long a heat recovery wheel should last? Is there a time when the wheel starts to loose it's efficiency? I have 3 Aaon's with recovery wheels about 7 years old, client was asking how...
  22. Replies
    3
    Views
    920

    Bacharach 'INSIGHT' iT'S OK, I haven't used it...

    Bacharach 'INSIGHT' iT'S OK, I haven't used it enough to form an opinion. Check back in a couple weeks.
  23. Replies
    4
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    678

    Depends, was the power left on to the units? Was...

    Depends, was the power left on to the units? Was the gas shut off to the units? Do the units lock-out after so many failed ignitions? Are the induced draft motors open or siezed or grounded? Make and...
  24. Replies
    3
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    920

    combustion analyzer

    I finnally got a combustion analyzer on my truck. Yes we have several in our service dept., but never had it when I needed it. I tried it on gas fired boiler , wow, opened a whole new world to me....
  25. Replies
    2
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    623

    bacharch insight

    Hello all, I purchased a Bacharch Insight combustion analyzer.I have a few questions on the set up.
    1- O2 reference- the measured value of CO can be referenced to a specific O2 percentage of 0% to...
  26. Replies
    1
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    520

    Chemical Test

    Anyone ever perform a chemical test on a heat exchanger (salt spray). gas fired furnace, rtu, etc.
  27. Replies
    13
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    1,093

    I didn't see a door switch 4 door reach-in, the...

    I didn't see a door switch
    4 door reach-in, the lites on the left side are working
    on the ballast, should I be able to read potential at the leads? 4leads for each lite
  28. Replies
    13
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    1,093

    reach-in lite problem

    This may be a stupid question but, working on a reach-in today, no lites so I replaced the bulbs, still no lite. So I replaced the ballasts, still no lite. PLEASE LET THERE BE LITE!! Is there any way...
  29. Replies
    4
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    1,079

    I can't answer the 1st, but the 2nd. is 50 ppm.

    I can't answer the 1st, but the 2nd. is 50 ppm.
  30. Replies
    2
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    1,122

    no, just looking for a manual

    no, just looking for a manual
  31. Replies
    2
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    1,122

    annex-air unit

    Anyone work on a annex-air unit? I can't find manual on there website.
    mod.-ERPE07HWHG
    ser.- 1382010409
    new unit, someone stole the book already
  32. Jack, If I remember, those thermafusers are...

    Jack, If I remember, those thermafusers are looking at discharge air temp. to determine mode of operation (cool or Heat). Do you have a RTU or AHU blowing a constant temp.(55-58)? Or is it cycling...
  33. Replies
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    1,309

    Does anyone use the Bacharach Insight #24-8250 ?...

    Does anyone use the Bacharach Insight #24-8250 ? Thinking about buying one, expensive!!!!
  34. Thread: Bacharach

    by oldtimer2
    Replies
    6
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    715

    Thanks KLS-CCC, thats about what there asking for...

    Thanks KLS-CCC, thats about what there asking for here as well
  35. Thread: Bacharach

    by oldtimer2
    Replies
    6
    Views
    715

    kls-ccc, Do you mind if I ask you what you spent...

    kls-ccc, Do you mind if I ask you what you spent for it
  36. Thread: Bacharach

    by oldtimer2
    Replies
    6
    Views
    715

    KLS-CCC,

    KLS-CCC,
  37. Thread: Bacharach

    by oldtimer2
    Replies
    6
    Views
    715

    Bacharach

    Time for a new combustion analyzer. I was thinking about going with the Bacharach Fyrite " Insight" #24-8250 . Any opinions? Anyone own one?
  38. Replies
    2
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    545

    I replace them with JCI drives. Piece of cake....

    I replace them with JCI drives. Piece of cake. Hardest part is getting the thing on the roof. Much cheaper too!!
  39. Thread: york rooftop

    by oldtimer2
    Replies
    6
    Views
    1,296

    If it is an older York RTU, like time said, there...

    If it is an older York RTU, like time said, there should be a time delay relay next to the compressor contactor. If your trying to start this fan on a cold day, the TDR takes a long time to heat up....
  40. Replies
    30
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    1,648

    Time, I don't think it could have run in mech....

    Time, I don't think it could have run in mech. cooling, the way it's wired. New consruction, part of punch list that original contractor would not repond to
  41. Replies
    30
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    1,648

    Time, I took the rain hood off looking for the...

    Time, I took the rain hood off looking for the parts I needed. There is a small blankoff plate behind the rain hood, once removed you can see the back side of plug#1
  42. Replies
    30
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    1,648

    The way I found the machine,there is no way the...

    The way I found the machine,there is no way the mech. cooling could have run. Off the lvtb at Y1 blue wire goes to plug #1, on the back side of the plug there is no wire connected. Thats why I think...
  43. Replies
    30
    Views
    1,648

    The model is what I read off the unit. There is...

    The model is what I read off the unit. There is no enthalpy module. At plug 1 I had to jump plug conns. 5 & 8 for 1st stage cooling to come on, 6 & 9 for 2nd. stage. I think there should be another...
  44. Replies
    30
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    1,648

    Carrier expert needed

    Carrier RTU-48tmd016511ba 0408u02577 New unit,another contractor installed. Condenser coil was damaged during install. Long story short he is out,were in. Replaced coil with no problems,go to...
  45. Thread: york rtu

    by oldtimer2
    Replies
    1
    Views
    634

    york rtu

    Can anyone help me navigate thru York's website to download some info on RTU's etc.?
  46. Thread: york help!

    by oldtimer2
    Replies
    2
    Views
    1,147

    maybe it's me, but I still can't find tech. info...

    maybe it's me, but I still can't find tech. info !! Please help !!!
  47. Thread: york help!

    by oldtimer2
    Replies
    2
    Views
    1,147

    york help!

    Anyone able to help me download tech lit. for a York split?
    mod.- TCGD60S21S2A
    ser.- WOH8234149
    ID coil
    MC62D3XHIA
  48. Replies
    1
    Views
    377

    Dumont poolpk

    Has anyone worked on a Dumont poolpak unit? If so, have you had problems with refrigerant leaks on the DX reheat coil? 2 coils in 8 years!! Company is out of Maine. They went out of business a few...
  49. Replies
    4
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    1,328

    Tac, Make sure it is not over firing. Confirm the...

    Tac, Make sure it is not over firing. Confirm the orfice sizes and correct manifold pressure. Is it short cycling? What is the model #
  50. Replies
    5
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    444

    4 million CFM, that will peel the bananas for...

    4 million CFM, that will peel the bananas for you!!!
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