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Type: Posts; User: mrhvacmechanic

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  1. Replies
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    When these MRI's loose power from a breaker trip,...

    When these MRI's loose power from a breaker trip, they just don't pop back on like nothing happened. Usually on a power loss the computers power down on a UPS system. After restore, system has to be...
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    These timers always bleed voltage thru them As...

    These timers always bleed voltage thru them As stated they operate on a current draw.

    In this case I use a Idec RTE series timer with base, instant close, time open.
  3. Replies
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    410

    I had never seen one before. I have seen in...

    I had never seen one before.

    I have seen in the past the Dx but didn't know you could hook up a screen to it.

    Thanks!
  4. Replies
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    410

    JOHNSON CONTROL

    Here is a picture of it.
  5. Replies
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    410

    JOHNSON CONTROL PAD

    Guys,
    I was doing maintenance on a roof today on a water tower. My partner whent down to the van to get some equipment we needed.

    While I was waiting for him, I saw some other equipment on the...
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    Could the first coil be a pre-heat? The the...

    Could the first coil be a pre-heat?
    The the others after the "Y" could be re-heats for two separate zones or areas with their own T stats?
    Do theses coils all have their own control valves?:)
  7. WIDOW UNIT CLEANING OF STYROFOAM DISCHAGE

    Just a quick question on cleaning the discharge of window units. I have five of them in my home. Three which I bought this season.

    No matter how clean I keep the intake filters, the styro....
  8. Replies
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    636

    Even worse when you have to go off road in the...

    Even worse when you have to go off road in the snow and the van isn't a 4 wheeler!
  9. Replies
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    1,275

    Could there be any evaporation loss due to valve...

    Could there be any evaporation loss due to valve packing & stems over a period of time?
  10. Replies
    34
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    2,430

    I have used Staybrite since 1975, many times on...

    I have used Staybrite since 1975, many times on installing an access fitting. Have never had a problem. However, I usually use a1/8" or 1/4" copper access fitting.

    PSEMG prefers the #8. I usually...
  11. Replies
    31
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    2,731

    Had a call no heat call last winter for a RTU...

    Had a call no heat call last winter for a RTU that fed a basement gymnasium. Another one of those COD's??

    Went up on roof, an found cover hanging by its screws and blown out from the unit??...
  12. BA, This I did know. My point was that I...

    BA,
    This I did know.
    My point was that I didn't think Emerson was still using the ALCO logo on the Emerson products.
    I figured this is an old vale on this unit??
    I do not know when Emerson...
  13. How old is this valve?? ALCO has been out of...

    How old is this valve?? ALCO has been out of business for a while if I'm not mistaken?
  14. Replies
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    Turn off the unit and turn off the gas!! ...

    Turn off the unit and turn off the gas!!

    Write on your service ticket that the HXC has a hole or crack in it and it is defective. You turned off gas & power for safety reasons. Also state on...
  15. Replies
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    1,378

    I'm waiting for a set of step plates to come in....

    I'm waiting for a set of step plates to come in. Since I have about 20 bearings on a job to be replaced, they will make it easier.
  16. Replies
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    I had looked into the step plates also. Seem kind...

    I had looked into the step plates also. Seem kind of expensive for a set of them.
  17. Replies
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    New photo.

    New photo.
  18. Replies
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    1,378

    BEARING REMOVAL ON HOLLOW SHAFT TOOLS

    Hi, hope all are well.

    I have done allot of bearings over the years. However,sometimes I come across a bearing on a hollow shaft that needs to be removed with a puller??

    I can't always use a...
  19. Man that's bad!! Worst I have ever seen also.

    Man that's bad!!

    Worst I have ever seen also.
  20. Replies
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    I live in NJ!! "THE LAND OF THE PROFESSIONAL RACE...

    I live in NJ!! "THE LAND OF THE PROFESSIONAL RACE CAR DRIVERS!!" That's what I call it!! No matter how fast you go or what lane you're in you get tailgated.
    The cops do nothing about it.

    I have...
  21. Handy, Would it pay to have a roof contractor...

    Handy,
    Would it pay to have a roof contractor look at the site??
  22. Replies
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    Winter or summer, if your driving those kind of...

    Winter or summer, if your driving those kind of hours and not getting paid for it, find another company!! That's ridiculous!!

    Here in NYC its traveling time if its 25 miles or more from the shop...
  23. Replies
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    959

    Thank you both. Managed to track down a Johnson...

    Thank you both. Managed to track down a Johnson P70 with manual reset.
  24. Replies
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    MANUAL RESET LOW PRESSURE SWITCH

    Gentlemen,

    Need a LP with manual reset??? Adjustable if possible? Range open about 40 psi??

    We need to protect system when Low Ambient time bypasses the existing control. System has lock out...
  25. Replies
    0
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    409

    TEKTRA 905-01

    Hi guys!

    Was on a job Friday with this control which operated a small boiler.

    TEKTRA 905-01 ?? It looks like a Tekmar control but not spelled the same??

    I went to Tekmar site and...
  26. Replies
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    6,224

    I guess they just want you to change the filters...

    I guess they just want you to change the filters and belts in one hour. They want you off the job with out checking the rest of the unit!!

    Then a week later when a service call comes in on the...
  27. Replies
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    Some bid low and when they get it, they do as...

    Some bid low and when they get it, they do as little as possible.
  28. Replies
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    Good question MH! I installed one the other day...

    Good question MH! I installed one the other day but it came with no info?? If anyone has a cut sheet on this moder please attach it for us?:angel::angel:
  29. Thanks Wolfdog! Its a closed glycol loop. ...

    Thanks Wolfdog!

    Its a closed glycol loop. Condenser coil is spotless!:toetap:
  30. CARRIER AQUA SNAP CHILLER AUTO RESET ALARMS

    Went to job today, and chiller had two alarms: 301 & 302 strainer and condenser coil maintenance.

    Manual says: these alarms are auto reset, not manual reset??

    Question 1) Does anyone know...
  31. Replies
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    397

    STULS 4 TON TEV REMOVAL

    Correct me if I'm wrong??
    In order to replace a TEV on this unit, do you have to cut both the suction and LL and then lift out the "A" coil to do this???

    It seems the cross-member of the...
  32. "D", We checked fan on vsd to see if it was...

    "D",
    We checked fan on vsd to see if it was failing causing a rise in dis press..

    Factory said the unloaders stick some times until oil works into the seals??? Keeping comp unloaded with a rise...
  33. LIBERT DIG SCRL DISCHGE TEMP SENSOR ALARM W/VSD COND FAN

    Having a problem with a Libert digital scroll discharge temp sensor??

    It's been very cold here in NYC and condenser is running on VSD. The two other fans come on above 60*F. New unit,running with...
  34. Replies
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    Valdelocc makes a good point. Most companies fill...

    Valdelocc makes a good point. Most companies fill the system and forget about them. Glycol levels have to be checked, they also can become corrosive! This happens if the alkalinity changes. Seed a...
  35. Replies
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    Another way for the city to make a buck!!

    Another way for the city to make a buck!!
  36. Replies
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    I always will install them. :patriot: Sometime...

    I always will install them.

    :patriot: Sometime 75*F won't keep liquid from collecting in the crankcase.

    May I ask what type of compressor are you working on that you have to recover the charge...
  37. Replies
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    411

    STULZ E2 SERIES TOUCH PAD

    Gentlemen,
    Just picked up an account for maintenance. The tenant used to have five floors and moved out. The five floors have been leased to other companies.
    The one we have took two floors and...
  38. Thank you P 10. I was just checking some othe...

    Thank you P 10. I was just checking some othe manuals I have for a 2004 unit. Both limits in series. If either breaks gives you a "4" flash of the green LED.

    Thanks for you time! Mr HVAC
  39. TRANE YCH180 IGNITION BOARD FAILURE CODES

    Would any one have the codes for the flashing led on the ignition board. No info on the unit 2004 install.

    Roof top nat gas . Went to trane site, no help. Getting four green flashes
  40. Replies
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    The cover that blew off was the side access panel...

    The cover that blew off was the side access panel to the compressors and electrical. Gas line enters thru same cover and so does the combustion exhaust. Also the cover which slides out protecting the...
  41. Replies
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    WRONG WAY TO FIX CRACKS IN HTXCR

    Found covers blown off a Carrier roof top when we arrived on a no heat call?
  42. Replies
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    1,088

    Get the ICM or Americian Tech speed controls....

    Get the ICM or Americian Tech speed controls. Good for both sleeve and bearing.
  43. Replies
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    Just to clarify my reason to change all three. ...

    Just to clarify my reason to change all three.

    You really don't have to, but fuses have what's call a melt point before it opens.

    Taking this into consideration, the other two fuses may still...
  44. Replies
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    Replace all three.

    Replace all three.
  45. Replies
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    Here are a couple I shot this morning from the...

    Here are a couple I shot this morning from the Brooklyn Queens Expressway. Had to do it while I was driving.

    McQuay won the bid.
  46. Replies
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    MARSH GUAGES

    Sorry for the re-post,I should have posted here.

    Trying to locate a supply house that carrys MARSH manifold guages.

    If anyone knows who carries them plese let me know?
  47. Replies
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    I agree with V. We have many sites with them and...

    I agree with V. We have many sites with them and were are constantly having them rebuilt.

    You get what you pay for!
  48. Replies
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    NEW TRADE CENTER TOWER

    Here's a shot from the Jersey side!
  49. Replies
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    565

    I have only been to local Dakin training. Your...

    I have only been to local Dakin training. Your better off at the factory.
  50. Replies
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    What make is the unit?

    What make is the unit?
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