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Type: Posts; User: etbrown4

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  1. Replies
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    We use 110 plus the os ambient as the target....

    We use 110 plus the os ambient as the target. Raising or lowering the temp of the vapor line (with the charge) near the service valve until it matches. Not deeply invested in this approach, but have...
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    793

    What about the Goodman method?

    We've tried the Goodman method a few times in heat. Could have been luck, but it seemed to produce a good result without overcharging. Anybody else tried it with a mini-split?
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    793

    Curious how you used Sh or Sc. With the variable...

    Curious how you used Sh or Sc. With the variable speed compressors, the pressures and temps are moving all over the place. i suppose with TD you were just looking for the max split, and an...
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    793

    Adding refrigerant to mini-split

    Most every tech knows that mini split manufacturers require that in the event of a leak, systems have to be evacuated and have the charge weighed in.

    Curious if any guys have found an effective...
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    2,413

    Not sure if these 8 -10 yr old Tranes or A/S -...

    Not sure if these 8 -10 yr old Tranes or A/S - series 6H6036A have potential relays. Perhaps others here might know.
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    2,413

    Sure all the large supply houses have those caps....

    Sure all the large supply houses have those caps.

    Problem is, this job is days away from the nearest supply house and in an area not served by UPS.

    So that is why I'd like to know if anyone has...
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    2,413

    Trane or A/S Start Capacitor With Resistor

    Working on an A/S unit and need replacement compressor start capacitor. Oem cap has a resistor.

    Problem is we're days away from a supply house, but we have a similarly rated cap on the truck with...
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    3,044

    When you say 'last pass' do you mean the highest...

    When you say 'last pass' do you mean the highest loop of copper tubing in a coil.

    This is an A coil and the condensation droplets are forming in possibly the 2nd loop of copper tubing from the...
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    I appreciate the previous helpful suggestions! ...

    I appreciate the previous helpful suggestions!

    This was with the 8 year old 2 ton A/S counter flow fcu in cooling mode

    The plot thickens....

    The coil has been cleaned again and the underside...
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    3,044

    The R-22 charge is perfect. I'm guessing that...

    The R-22 charge is perfect.

    I'm guessing that leaves us air flow to consider or perhaps another brand or type of coil cleaner.

    There initially was a fair amount of small rust like debris in the...
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    Drain is clear. Best we can tell, condensate...

    Drain is clear. Best we can tell, condensate may be blowing off the coil, or just draining improperly....potentially due to some area still lightly clogged. Perhaps there could be another cause.
    ...
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    A leak is a leak. Inspectors in our area...

    A leak is a leak.

    Inspectors in our area require 30 psi holding for 24 hours. Lose 1 psi and you flunk!

    Typical cause is either insufficiently tightened threaded joints or teflon tape not...
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    Stubborn Condensation Leak on A-Coil

    We've got an Improperly draining A coil in an American Standard downflow fan coil unit. Drain is clear.
    Maintenance guy allowed to filter to clog and no doubt some initial dust clogging the coil....
  14. t stat

    Thanks for the tips....
    Anyone know if the Honeywell FocusPro 5000 will lock out the compressor when aux heat is called for?
  15. T-stat

    Will the quality t-stat you refer to, like a Honeywell FocusPro 5000 lock out the compressor, when strips are called for as that's the feature sought.
  16. Limiting current load - Strips or Compressor

    We have a job where we'd like to limit the current draw from the HVAC equipment, by essentially isolating the compressors and the strip heat.

    We'd like to set it up so that you either run the heat...
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