txv indoor
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Thread: txv indoor

  1. #1
    Join Date
    Feb 2005
    Location
    cincinnati ohio
    Posts
    2,020
    I had a scroll burn up the first year on a new install . It had a non bleed exspanntion valve on the varible speed air handler . The od unit didnt come with a hard start kit or a cc heater ? Why wouldnt they use a bleed valve on the indoor unit ? bh im really losing faith in this eqipment .
    My avatar is a picture of a Goodman Silencer .....These were commonly used in Goodman country ....Photos by hvac tech ( PaysonHVAC )

  2. #2
    Join Date
    Aug 2003
    Location
    Fort Worth, TX
    Posts
    11,271
    Originally posted by bob hubbard
    I had a scroll burn up the first year on a new install . It had a non bleed exspanntion valve on the varible speed air handler . The od unit didnt come with a hard start kit or a cc heater ? Why wouldnt they use a bleed valve on the indoor unit ? bh im really losing faith in this eqipment .
    Non-bleed TXV and a compressor burnout are not necessarily synonymous.

    Poor installation procedures could lead to a burnout, overcharge of refrigerant, power supply issues, or...too many variables without actually being at the job.

    Non-bleed TXV's do not allow the system to equalize during the off cycle. Non-bleed TXV's add a degree of efficiency to higher SEER equipment by reducing the pump down time on the evaporator after the compressor restarts.
    A crankcase heater is a good idea whenever the compressor is installed in a location lower than the evaporator, or when low ambient operation is expected.
    • Electricity makes refrigeration happen.
    • Refrigeration makes the HVAC psychrometric process happen.
    • HVAC pyschrometrics is what makes indoor human comfort happen...IF the ducts AND the building envelope cooperate.


    A building is NOT beautiful unless it is also comfortable.

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