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  1. Thread: HVAC Calc

    by mountainman
    Replies
    4
    Views
    427

    The reason I have asked this question is, I have...

    The reason I have asked this question is, I have just heard that in North Carolina that to get credit for a Green House installation and money back that the program has to be ACCA certified.
  2. Thread: HVAC Calc

    by mountainman
    Replies
    4
    Views
    427

    HVAC Calc

    Is HVAC Calc ACCA approved? If so is there any doc. showing this?
  3. Replies
    29
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    1,447

    Is your compressor loud when going into defrost?...

    Is your compressor loud when going into defrost? The reason I'm asking is I installed a in a Airease Heat Pump Model 4SHP13L124P R-410 last year for a customer and Iit has a low amp draw when running...
  4. Replies
    17
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    1,042

    Can I open the front cover of the DX 9100 to...

    Can I open the front cover of the DX 9100 to check the jumpers with out shut anything down?
  5. Replies
    17
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    1,042

    smokeout: Why did you ask my location? carrier...

    smokeout: Why did you ask my location?

    carrier jci tac tech: The sensors are fine and the XP is fine. The lights are working correctly. From some info that I have found it looks like it has not...
  6. Replies
    17
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    1,042

    carrier jcl teac tech:The temp sensors...

    carrier jcl teac tech:The temp sensors TE-6312P-1 are the one that were orginal put in and spec. for the job. I also read 250 when the sensor are disconnected and was getting -49 before I changed...
  7. Replies
    17
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    1,042

    Ok I have more info. I changed 2 temperature...

    Ok I have more info. I changed 2 temperature sensors today (JC TE-6312P-1) and found that they are reading 103 deg f at teh DX 9100 btu the ohm reading is .937 k ohms which is 49 deg f which is my...
  8. Replies
    17
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    1,042

    DX 9100 Bad

    I have a DX9100 that in the plant I work in that is bad. It is controlling 3 chillers and some pumps. This is just one dx9100 that we have. What we are getting is bad temp. readings and a alarm...
  9. Replies
    6
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    741

    Yes, 2 of the condensor fans are close to the...

    Yes, 2 of the condensor fans are close to the cabinet on speed drive. Also this is a RTAA125 not a RTAA80. I did some checks today and found that the sensors and EXV look ok. I also notice that the...
  10. Replies
    6
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    741

    RTAA Low Evap Temp Fault

    I'm having problems on cold nights with 2 RTAA080 chillers. I have 3 of these chillers but right now only 2 do this. This problem has been going on for years from what I'm told. I have started take...
  11. Replies
    7
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    955

    Metasys How to change UNR ?????

    I have a 10 year old Metasys system in the plant that I work at. Im trying to change a discharge temp sensor from UNR ????? to where it is reading the temp on the pc screen. The temp sensor is...
  12. Replies
    7
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    1,619

    RTAA Service Bulletins

    I would like to fine the web site that has all the service bulletins for the RTAA 125 chillers. Have looked but have had found any. Thanks
  13. Im haveing the same problem. It only happens in...

    Im haveing the same problem. It only happens in the winter or cool weather or windy conditions. One of my co workers said that this has been going on for years and Trane said it was because the evap....
  14. Replies
    18
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    2,110

    Thanks to everone I'm going to check on the pins...

    Thanks to everone I'm going to check on the pins Monday. I could not work on it today because of the rain. So that is on my to do list Monday. Thanks again.
  15. Replies
    18
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    2,110

    Well I came in this morning and the chiller...

    Well I came in this morning and the chiller tripped out. Will go out and start looking again. I put in all Cutler Hammer aux. contacts. There are the same thing that came out. The only contact kit I...
  16. Replies
    18
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    2,110

    Thanks. I had already order some new contacts the...

    Thanks. I had already order some new contacts the other day but did not get the other items. Thanks for the help. I will give this a try and let you know. Thanks again.
  17. Replies
    18
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    2,110

    The only thing that was order was some aux...

    The only thing that was order was some aux contacts that mount on the side of teh contactor. I did not know about a rebuild kit. I not yet sure which contactor is taking me out. Do you have...
  18. Replies
    18
    Views
    2,110

    RTAA Starter Transition -Cprsr B problems

    I have a RTAA 125 that is giving me a Starter Transition -Cprsr B fault ever now and again. I have replaced the auxillary contacts on all the contactors on this unit. I changed them on Friday and had...
  19. Replies
    11
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    4,056

    Here in North Carolina it is code to put a sleeve...

    Here in North Carolina it is code to put a sleeve when you go thought concrete or block, or brick. Then you need to fill the sleeve with silicone or foam in a can. Usually the sleeve is a piece of...
  20. Replies
    9
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    917

    Im have the same problem but my temp drop across...

    Im have the same problem but my temp drop across is 11 deg. The ODT is 93 and the suction is 75 psi and head is 195psi. The superheat was 88 deg line temp and gauge temp. was 44 deg which is 44 deg...
  21. Replies
    17
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    1,800

    Found the problem,. I asked the home owner if he...

    Found the problem,. I asked the home owner if he was running the tstat down at into the 60s the first day I was ther and he said no that he did not touch. Well the next morning while I was checking...
  22. Replies
    17
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    1,800

    Was just thinking could this be a bad...

    Was just thinking could this be a bad compresssor? Not pumping to capacity.
  23. Replies
    17
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    1,800

    I was there because they said it was froze again....

    I was there because they said it was froze again. The unit was turned off to melt off the ice.
  24. Replies
    17
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    1,800

    The amp draw on teh indoor motor is 1.8 amps....

    The amp draw on teh indoor motor is 1.8 amps. There as been people ther in the past with a leak. the unit only freezes ever now and then. I did switch the unit into heat and the pressure were 115 psi...
  25. Replies
    17
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    1,800

    Hello today was called out on a York heat pump...

    Hello today was called out on a York heat pump about 12 years old. Outdoor unit Model# E1FB0245506A Air Handler Model # N2AHD10A06E. The unit has been freezing up. The pressurs are Suction 78psi head...
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