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  1. Thread: TXV or no TXV???

    by cb975
    Replies
    54
    Views
    4,364

    if you want better efficiency, more consistent...

    if you want better efficiency, more consistent cooling and greater system reliabilty then the TXV installed by someone who knows what they are doing is the way to go. A few years ago the an audit was...
  2. Replies
    4
    Views
    381

    Physics is the same no matter who designs the...

    Physics is the same no matter who designs the equipment so beware someone who tells you that one 3-ton unit out-cools another 3-ton unit. Also reliability has as much to do with how well the unit is...
  3. Replies
    19
    Views
    1,343

    the selection between 2 and 4 periods a day is in...

    the selection between 2 and 4 periods a day is in the installer set-up options and i would recommend having your dealer adjust this as those setup table have other features that if changed could...
  4. Replies
    6
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    2,587

    There was no recall on the carrier heat...

    There was no recall on the carrier heat exchangers but there was a settlement related to issues that resulted from poor drainage in the secondary chamber which allowed water to sit stagnant and rust...
  5. Agree, sizing is most important and i would...

    Agree, sizing is most important and i would recommend requesting a manual J which is a worksheet used to properly size an A/C system or request that they state on your agreement that the system being...
  6. --58hdx is single stage heat with a standard...

    --58hdx is single stage heat with a standard blower motor, stainless steel primary and secondary heat chambers. This is is upper lower tier
    --58uvb is 2-stage heat with an ECM variable speed motor...
  7. Replies
    12
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    2,032

    a 48n_t model does fit the appearance and time of...

    a 48n_t model does fit the appearance and time of manufacture from what i see. that information along with knowing how many burners has norrowed down the information to which i have access to the...
  8. Replies
    25
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    4,039

    breaking a vacuum with the proper refrigerant...

    breaking a vacuum with the proper refrigerant such as r-410a (puron) is proper proceedure. there are 2 methods for charging a system with a txv...the first is to weigh the charge in which requires an...
  9. Thread: Filter selection

    by cb975
    Replies
    10
    Views
    917

    the deep return air grille filters in my opinion...

    the deep return air grille filters in my opinion would be the best option, as was mentioned before they have more surface area and are less restrictive to air flow which restrictive airflow not only...
  10. Replies
    25
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    4,039

    when i said yes that system charge could increase...

    when i said yes that system charge could increase the sound level of the system i should have mentioned that excess refrigerant will not only cause the compressor to work harder but will increase the...
  11. Replies
    25
    Views
    4,039

    serious answer

    yes, system charge can effect sound resonation in the linsets. first of all the sound is generated by two things, one is the 60hz hum you hear from all electric motors which can increase in intensity...
  12. fan noise

    just touching a few point about fan noise
    1. variable speed blowers will be louder than traditional blowers due to the fact they will increas rpm to maintain airflow
    2. short or hard metal return...
  13. How you are alerted to change the filter depends...

    How you are alerted to change the filter depends on how the control was configures at start-up. there are 2 types of filter, media (which is the solid filter thats been around forever) and EAC -...
  14. if your humidity is dropping to 30% and lower you...

    if your humidity is dropping to 30% and lower you definately want a humidifier, levels that low can cause health issues. as far as choosing a humidifier they are typically sized according to how many...
  15. Thread: Carrier Edge

    by cb975
    Replies
    4
    Views
    478

    if the display only goes blank when the system...

    if the display only goes blank when the system trys to come on i would select a "brownout" condition which basically means that when a component is energized it draws more power than is available and...
  16. Replies
    12
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    2,032

    just hit me the serial number you provided...

    just hit me the serial number you provided 3190007255 is probably 3190 G 07255 which would be a 1990 model unit. does that sound right?
  17. Replies
    12
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    2,032

    a matter of effort

    lack of a model number does not mean your out of luck, as someone who used to work a parts counter for a carrier distributor i know a thing or two...first of all part numbers can help by narrowing...
  18. Replies
    1
    Views
    1,814

    yes you can, not sure bout app

    firstly for individual room temp control you need a zone system, if you don't already have one this will require modifications to your duct system and the installation of air dampers as well as...
  19. Replies
    1
    Views
    1,695

    carrier infinity

    they can only be purchased through a Carrier Dealer and are only compatible with specified Infinity units (can not be used with other manufacturers equipment).
  20. Replies
    19
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    4,123

    duped

    Carrier, Bryant and Payne are all manufactured by Carrier corp. as well as several lesser known brands and it is true that they are manufactured at many of the same factories but that does not make...
  21. Replies
    2
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    2,024

    not obsolete

    2-stage scrolls are the newer tech in multi-stage residential equipment. Carrier uses the Copeland Compressor 2 stage scroll which uses a process called unloading to achieve 2 stages of operation....
  22. Replies
    6
    Views
    1,452

    i often run into an issue with commercial h-p...

    i often run into an issue with commercial h-p units where the thermostat is configured incorrectly and the cooling runs continuosly. the unit is a heat-pump but does NOT use a heat pump stat. the...
  23. Replies
    13
    Views
    63,784

    Carrier Serial Numbers

    See attached on how to read Carrier serial numbers...applies to Bryant and Payne as well
  24. Be aware

    as to the comments about Carriers issues with secondary heat exchangers in my experience the majority of failures are the result of poor installation and maintenance, with any condensing furnace the...
  25. Replies
    148
    Views
    69,828

    background reply

    I've been in HVAC distribution and support for 11 years now. For the past 5 i have worked in a tech support role assisting contractors with various issues in the feild as well as acting as a go...
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