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  1. One of the ways subcooling can be low is if an...

    One of the ways subcooling can be low is if an unusually large liquid line filter drier was installed, which is acting as a receiver and you're measuring the subcooling before that filter dryer.
  2. There are people coming here who are doing HVAC,...

    There are people coming here who are doing HVAC, specifically in neighborhoods where people have a lot of trepidation about American contractors. So, I might not be able to do work in a predominantly...
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    All you need to know about anthropogenic climate...

    All you need to know about anthropogenic climate change is to know the people behind this alleged causal factor.

    They are people who seek dictatorial-level power over others. They believe that...
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    Poll: Good morning, everyone!

    Good morning, everyone!
  5. If your ductwork is not in the conditioned space,...

    If your ductwork is not in the conditioned space, and neither is your air handler, that's going to change everything.
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    Poll: Good morning, everyone! For those who would...

    Good morning, everyone!

    For those who would like to join me this morning, we stream live at 9:00 am and 10:30 am EDT, and ...
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    The intellipaks use dampers on the condenser fans...

    The intellipaks use dampers on the condenser fans with an actuator..... but the ones I've looked at are probably close to 20 years old ....so I'm not sure if they're still doing that.
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    I truly prefer a good screw terminal to that...

    I truly prefer a good screw terminal to that spring loaded nonsense.
  9. Still need more info than that.....

    Still need more info than that.....
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    33,123
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    Poll: Good morning, everyone!

    Good morning, everyone!
  11. 1) what is the stat model, and 2) what is the...

    1) what is the stat model, and

    2) what is the indoor and outdoor unit(s) model number?
  12. This would be due to restriction, upstream of the...

    This would be due to restriction, upstream of the point where the line is getting cold.
  13. This would be a question for your local Authority...

    This would be a question for your local Authority Having Jurisdiction to see if they have any particular requirements.

    The NEC requires that work be done in a workmanlike manner, but there is no...
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    Poll: Good morning, everyone!

    Good morning, everyone!
  15. Replies
    33,123
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    2,544,732

    Poll: Good morning, everyone!

    Good morning, everyone!
  16. Replies
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    I go with the V10. 2010 E250. 4's and 6's are...

    I go with the V10. 2010 E250.

    4's and 6's are designed to help the manufacturer meet CAFE fuel efficiency standards. Having enough power is strictly a secondary consideration for them.
    ...
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    Poll: Good morning, everyone!

    Good morning, everyone!
  18. Actually... overcurrent protection is provided...

    Actually...

    overcurrent protection is provided by the built-in overload devices inside HVAC compressors and motors. Open drive compressors and semi-hermetics may be designed to use a starter, but...
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    33,123
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    2,544,732

    Poll: Good morning, everyone!

    Good morning, everyone!
  20. Replies
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    43,772

    The consumer pays for everything...... including...

    The consumer pays for everything...... including every ideologically-driven bad decision that activists can make.
  21. Replies
    33,123
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    Poll: Good morning, everyone!

    Good morning, everyone!
  22. Replies
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    You have made the first and most difficult step:...

    You have made the first and most difficult step: you have realized that this was a feeling that was worth questioning, and you have done so. I would definitely share this with a counselor who can...
  23. Mayor Kenney clearly cares not a whit for those...

    Mayor Kenney clearly cares not a whit for those who are owners. They are not whom he considers as his constituents. Dom Giordano just commented on "Inside Story," that the last Republican Mayor of...
  24. Replies
    33,123
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    2,544,732

    Poll: Good morning, everyone! For those who would...

    Good morning, everyone!

    For those who would like to join me this morning, we stream live at 9:00 am and 10:30 am EDT, and ...
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    He could have signed up already, and his...

    He could have signed up already, and his application is still being reviewed by the membership committee.

    Those guys have busy lives just like the rest of us.
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    I agree. You should go Union and Commercial,...

    I agree. You should go Union and Commercial, while you're working on some weight loss. In Philadelphia, a fifth year Apprentice in the union makes more money than the average HV AC technician at a...
  27. It is certainly new around here...... and you're...

    It is certainly new around here...... and you're going to pay a premium to have it installed or serviced in Philadelphia.
  28. Replies
    33,123
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    2,544,732

    Poll: Good morning, everyone!

    Good morning, everyone!
  29. In order to tease the people out of mom's...

    In order to tease the people out of mom's basement that we will need in the next 20 years, this industry is going to have to offer in excess of $75,000..... because right now they can sit in their...
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    You have to isolate the capacitor in order to use...

    You have to isolate the capacitor in order to use your meter to directly read the capacitance.

    This means removing at least one side's wires from the capacitor.

    If you fail to do that, you are...
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    My lunch is done with my micron gauge says 500.

    My lunch is done with my micron gauge says 500.
  32. The issue with vrf systems is that it is a new...

    The issue with vrf systems is that it is a new technology, it has a high upfront cost, and very few technicians in the field know how to properly diagnose and service those systems.

    That means...
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    I have initiated the Hearthman Signal. it's like...

    I have initiated the Hearthman Signal. it's like the Bat Signal.

    He may respond to this thread.
  34. Ask you friends who they have used, and would use...

    Ask you friends who they have used, and would use again.
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    Well, if you have the marquee displays, I would...

    Well, if you have the marquee displays, I would read up on the abbreviations used.
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    They use thermostatic expansion valves. The...

    They use thermostatic expansion valves.

    The unit is designed to appear to be a poor man's Lennox L Series, like the Predator is in the York line.

    Carrier has made this unit sufficiently...
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    33,123
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    2,544,732

    Poll: Good morning, everyone!

    Good morning, everyone!
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    Dude. You just posted in a 10 year old thread....

    Dude.

    You just posted in a 10 year old thread.

    If you have a question, PLEASE do not ask it in a thread that is more tham a month old.

    Instead, start a new thread.
  39. Replies
    33,123
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    2,544,732

    Poll: Good morning, everyone!

    Good morning, everyone!
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    If you use a A/D converter and a processor, you...

    If you use a A/D converter and a processor, you can infer the true current from nearly any measured current. I think you are trying to do a direct measurement, and I am not sure if that is possible...
  41. Well done.

    Well done.
  42. Replies
    33,123
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    2,544,732

    Poll: Good morning, everyone!

    Good morning, everyone!
  43. Replies
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    The RSES Commercial stuff for the CM designation...

    The RSES Commercial stuff for the CM designation is deep enough to satisfy ANY master exam on the planet.
  44. Replies
    33,123
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    2,544,732

    Poll: Good morning, everyone!

    Good morning, everyone!
  45. Reply back if you are looking to fill a director...

    Reply back if you are looking to fill a director of training position. I am going to stop climbing ladders at some point during the next 10 years.
  46. Replies
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    You could always drain the water into a...

    You could always drain the water into a condensate pump and run a plastic line to anywhere that's convenient for water disposal.
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    Actually, the UV light strikes everything that...

    Actually, the UV light strikes everything that passes by it. Every water droplet, every particle. Not just surfaces.

    These UV technologies have been used in hospitals since the 1950's. They help...
  48. Replies
    33,123
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    2,544,732

    Poll: Good morning, everyone!

    Good morning, everyone!
  49. Maybe ther is such a manualk, but I have never...

    Maybe ther is such a manualk, but I have never seen it.

    I just look at the dorr sticker on the unit.

    I believe there are two 24volt inputs to the board. One runs the logic and is sent out on...
  50. Replies
    33,123
    Views
    2,544,732

    Poll: Good morning, everyone! For those who would...

    Good morning, everyone!

    For those who would like to join me this morning, we stream live at 9:00 am and 10:30 am EDT, and ...
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