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york....Carrier....etc

Paul S_3
Paul S_3 Member Posts: 1,261
How come on allot of York...Carrier...etc packaged units....there is only a high side pressure tapping on the discharge line of the compressor and not on the outlet of the condenser coil...I always get very high pressure readings there...how would I be able to check my subcool on these jobs...thanks Paul S
ASM Mechanical Company
Located in Staten Island NY
Servicing all 5 boroughs of NYC.
347-692-4777
ASMMECHANICALCORP@GMAIL.COM
ASMHVACNYC.COM
https://heatinghelp.com/find-a-contractor/detail/asm-mechanical-company

Comments

  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,452
    Subcooling

    The difference between the liquid line pressure and the discharge line pressure is pretty negligible. If their is no place to measure liquid pressure just use the discharge pressure convert it to temperature and then subtract the liquid temperature from it. Should be 15-20 deg. I have seen systems that don't track right. I usually stop charging when the sub-cooling temp is correct or when the sight glass is clear whichever comes first
  • Paul S_3
    Paul S_3 Member Posts: 1,261
    track?

    What do you mean"don't track right"?...Paul S
    ASM Mechanical Company
    Located in Staten Island NY
    Servicing all 5 boroughs of NYC.
    347-692-4777
    ASMMECHANICALCORP@GMAIL.COM
    ASMHVACNYC.COM
    https://heatinghelp.com/find-a-contractor/detail/asm-mechanical-company
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