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Type: Posts; User: oldertech

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  1. Replies
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    We tested it on a 7.5 ton package unit exhibiting...

    We tested it on a 7.5 ton package unit exhibiting 55 degree superheat. It had been replaced for "faulty" TXVs. 4 oz. of AC Renew on one circuit, following instructions, brought the super heat down to...
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    There is an HH type of liquid line drier that...

    There is an HH type of liquid line drier that would be better capable of filtering whatever may be causing this industry wide problem.
    Among those of you who are now using pistons have you had any...
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    3,590

    Indy did you get the York communicating zoning...

    Indy did you get the York communicating zoning system?
  4. Replies
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    7,980

    Venstar wifi

    Venstar has very good residential and commercial color touch thermostats with WiFi. www.venstar.com or www.us-ac.com. I have a residential model on my wall.
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    For the record, a PEFY-P36 is a City Multi 3ton...

    For the record, a PEFY-P36 is a City Multi 3ton ducted air handler. Not a mini split, which usually is synonymous with ductless one on one systems.
  6. York uses Microchannel coils as well. They do not...

    York uses Microchannel coils as well. They do not change the laws of physics.
  7. Under the Checking Subcooling heading there...

    Under the Checking Subcooling heading there aren't any temperatures. Everything under that heading looks good. Item 5 simply got misprinted, apparently nobody proofread.
    A heavy load will increase...
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    It sounds like they gave you the right material...

    It sounds like they gave you the right material and installed it wrong. What counts is the installed thickness!
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    My knowlege of Conrols is limited but I may be...

    My knowlege of Conrols is limited but I may be able to help. York's internal language is modbus. There is free software for connecting through the RS485 connections using a converter to RS232. The...
  10. Thread: city multi

    by oldertech
    Replies
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    1,680

    In our experience other manufacturers software...

    In our experience other manufacturers software has not been an issue. We have some carrier software without any conflict.
  11. Replies
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    You asked where to buy Mitsubishi. USACD can...

    You asked where to buy Mitsubishi. USACD can supply all of their products, has sales staff to help with decisions and do factory start ups for the City Multi systems. If you are in so cal you should...
  12. Thread: city multi

    by oldertech
    Replies
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    1,680

    I also had a time getting the Maintenence tool...

    I also had a time getting the Maintenence tool software to run, it never got past the initial blue screen. My IT department could not solve the issue either. I saved all important information that...
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    cmon guyssss there might be som asbestos we can...

    cmon guyssss there might be som asbestos we can blow into his family as well.....
  14. Replies
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    To whom it may concern. Know this, the second...

    To whom it may concern. Know this, the second letter in a Luxair model number is a generation and is to be ignored when searching for literature. When looking for DGCU literature, look for DCU or...
  15. Nice.........very nice...........lol LOL

    Nice.........very nice...........lol LOL
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    Wow what a poor job they are doing! 1. As said...

    Wow what a poor job they are doing!
    1. As said already that tape will not do the job. You are already finding it has lost adhesion and is leaking air! 2. The plenum needs to be as large as the coil...
  17. Replies
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    9,181

    I suppose you should be congratulated for looking...

    I suppose you should be congratulated for looking for the least restrictive air filter.
    I doubt anybody here has that information nor will they do that research for you.
  18. Replies
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    Then a standard fiberglass air filter will do the...

    Then a standard fiberglass air filter will do the job. I believe they are around 20%.
    You will find a Merv chart attached.
  19. Replies
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    9,181

    All the system needs is a standard efficiency...

    All the system needs is a standard efficiency filter. If for some reason you know your system can handle less air flow and want to install an air flow restrictor (pleated filter) you should be asking...
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    So true, the best fix is not always the only...

    So true, the best fix is not always the only solution. As much as we would like to make flat take it or leave it statements, every job is a custom job. Owners need options with costs so they can make...
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    The problem with operating heat pumps in heating...

    The problem with operating heat pumps in heating mode during mild weather conditions is that the outdoor coil is able to absorb a larger quantity of heat than the indoor coil is able to reject. That...
  22. Replies
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    9,867

    I would like to know how this works as well. I...

    I would like to know how this works as well. I have an aluminum tank and regulator given to me by their representative, but I don't work in the field anymore. It looks like a good idea if it works....
  23. Replies
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    I am looking at a job with 20 outdoor units. I...

    I am looking at a job with 20 outdoor units. I haven't counted the indoor. I sure wish this contractor paid as much attention to detail as you do.

    How could he record 2 hrs of run-time data for...
  24. Replies
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    8,199

    The R2 series is especially cool. John do you go...

    The R2 series is especially cool. John do you go for the extended warranty? I am doing "factory" start-ups but so far none of the customers have asked for the extended warranty.
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    8,199

    Did you use a flaring tool made for R410A? The...

    Did you use a flaring tool made for R410A? The shoulders are wider and seal better.
  26. Replies
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    York factory just now told me they build the...

    York factory just now told me they build the Xenon under national accounts. His information was sketchy since national accounts was not available. He did say if they built it they will warranty it....
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    Do they include a control module?

    Do they include a control module?
  28. Thread: R-22

    by oldertech
    Replies
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    1,068

    True, it's possible that the closer we get to...

    True, it's possible that the closer we get to those dates, the more R410A that is being used, the reduced quantity of R22 used will drive prices up due to smaller production quantities.
  29. Replies
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    Got my prayers techi. I'll send some calls your...

    Got my prayers techi. I'll send some calls your way. The contractors can listen to the girls.........lol
  30. Thread: R-22

    by oldertech
    Replies
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    1,068

    The Montreal protocol doesn't call for halting...

    The Montreal protocol doesn't call for halting production of R22 till the year 2020!
    Production of equipment using R22 in 2010.
  31. Replies
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    Have your tech check with carrier. There is at...

    Have your tech check with carrier. There is at least one bulletin relating to the code 71 72 issue.

    I had many problems when we started using TXVs (Carrier) a few years ago. Most of the problems...
  32. Replies
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    You cannot have heat in one zone and AC in...

    You cannot have heat in one zone and AC in another zone at the same time.

    I love the infinity zonning but I think you would be better off with a separate system for the basement!
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    Army tracked mechanic at Fort Lewis, 3yrs

    Army tracked mechanic at Fort Lewis, 3yrs
  34. Replies
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    and the carrier inverter is wisper quiet........!

    and the carrier inverter is wisper quiet........!
  35. Thread: Techie

    by oldertech
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    Who was that, L.K. in Fallbrook?

    Who was that, L.K. in Fallbrook?
  36. Replies
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    York does not have anything like infinity. Look...

    York does not have anything like infinity.
    Look for a whole new line of thermostats in York's catalog next year.
  37. Replies
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    It sounds like someone mistakenly connected the...

    It sounds like someone mistakenly connected the tstat second stage to the condenser instead of first stage. The blower would come on because that is controlled by a different terminal.
  38. Replies
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    Carrier/Bryant 2stage heat variable speed blower...

    Carrier/Bryant 2stage heat variable speed blower furnaces are capable of controlling heat staging with a single stage thermostat. Algorithm built into the furnace control board is set up by default...
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    After reading your post again I realize this...

    After reading your post again I realize this probably is not what you need.
  40. Replies
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    Actually there is a way for the infinity to...

    Actually there is a way for the infinity to control non infinity equipment.

    SYSTXCCNIM01
    The Network Interface Module (NIM) is used to interface the
    following devices to the Infinity ABCD bus so...
  41. Replies
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    LOL thanks for the laugh :D:D

    LOL thanks for the laugh :D:D
  42. Replies
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    1,475

    In California the utilities have control boxes...

    In California the utilities have control boxes they will install and give you credit on your electric bill. If there is a power shortage they then are able to signal the box to turn off your...
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    1,475

    I have to strongly disagree. You want to move...

    I have to strongly disagree. You want to move them away from the metal to stop the rattle.
  44. Replies
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    1,475

    First of all contractors if they run their...

    First of all contractors if they run their business properly know warranty is part of their cost. California state contractors law requires they supply the first year labor warranty. Equipment...
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    One thing to look at is the seer rating with the...

    One thing to look at is the seer rating with the combination of components quoted. Example, the Carrier 24ana7 5ton is listed in it's product data as having between 13 and 14 seer depending on the...
  46. The Infinity Remote access module will interface...

    The Infinity Remote access module will interface with a home automation system and or the skytel Internet.

    Carrier’s Infinity Remote Access uses state of the art
    technology to control Infinity...
  47. Replies
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    First of all there isn't any contest which size...

    First of all there isn't any contest which size to buy. There is only one size you need..........THE CORRECT SIZE!!!!!!!! .....as determined with a correctly done load calculation.

    Second, more...
  48. Check actual ratings for any particular unit....

    Check actual ratings for any particular unit. Example, Carrier's top line 5 ton package unit with a variable speed blower, (48DU...) is rated at 125* however the capacity at that temp. is...
  49. Replies
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    Here is a link to many 19xr manuals but I don't...

    Here is a link to many 19xr manuals but I don't see a teardown manual. Good luck.
    http://www.commercial.carrier.com/commercial/hvac/product_technical_literature/1,3069,CLI1_DIV12_ETI4906_PRD1,00.html
  50. This is what the link takes you to: Carrier Unit...

    This is what the link takes you to:
    Carrier Unit Tonnage

    001 – 1 ½ Ton
    002 – 2 Ton
    003 – 2 ½ Ton
    004 – 3 Ton
    005 – 4 Ton
    006 – 5 Ton
    007 – 6 Ton
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