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  1. SE Pennsylvania - Growing Residential Company!

    Tru North Heating and Air, Inc is a growing residential HVAC service company located in Downingtown, PA and we are looking for key individuals that want to be a part of our team!

    We are a premium...
  2. Thread: Odd noise

    by smoke
    Replies
    17
    Views
    656

    Rider77, I think you need to take that one step...

    Rider77, I think you need to take that one step further and specify the expensive 3M micro pleat filters are very restrictive.

    Anything you put in the duct will be restrictive at some level. The...
  3. Replies
    16
    Views
    988

    Never seen CAT wiring in any hvac system. I've...

    Never seen CAT wiring in any hvac system. I've used fiber and CAT5 in automation controls but not in the manufactured hvac systems.
    If it's 24v control then your CAT wiring is a problem. Even...
  4. Replies
    26
    Views
    1,126

    Here's a thought, You said the Service valves...

    Here's a thought,
    You said the Service valves are all the way open...
    Maybe the type of service valve you have is now back seated and closed. Try turning the service valved clockwise 1/2 turn and...
  5. Replies
    3
    Views
    1,235

    Registered

    Registered
  6. Ask home warranty to send a different company for...

    Ask home warranty to send a different company for a second opinion
  7. Replies
    8
    Views
    1,228

    Great. Where are these items located?

    Great.
    Where are these items located?
  8. Replies
    39
    Views
    3,139

    Maybe it's only running single stage and never...

    Maybe it's only running single stage and never ramps up.
    When I find a heat pump with half, or less, of the outdoor coil frozen solid it usually means under charged. If it's a 2 stage heat pump...
  9. Replies
    13
    Views
    2,236

    No gas exiting the automatic gas valve on first...

    No gas exiting the automatic gas valve on first try? But it will light the second or third?
    Don't be so quick to replace parts.
    The only way to find the problem is to spend time with the unit....
  10. Replies
    39
    Views
    3,139

    Rain or undercharge. If there are...

    Rain or undercharge.
    If there are noncondensibles you will see an un-even frosting pattern across the whole coil.

    ~smoke~
  11. Thread: 2 stage furnace.

    by smoke
    Replies
    28
    Views
    2,641

    nismo1, check out the Honeywell wireless stats....

    nismo1, check out the Honeywell wireless stats. You can get them in a Focus Pro style up to the Prestige line. 2wire or no wire applications

    ~smoke~
  12. Replies
    39
    Views
    3,139

    On another note, what company is turning away a...

    On another note, what company is turning away a service call? At least send some out to check out the system and gain a customer.

    ~smoke~
  13. Replies
    39
    Views
    3,139

    Heat Pumps don't "suck", it might be under...

    Heat Pumps don't "suck", it might be under charged if only half the coil is freezing up. If it has a defrost sensor it might be located at the other end of the coil and not reach the specified temp...
  14. Replies
    13
    Views
    2,430

    6howards, you dug up a thread from last summer

    6howards, you dug up a thread from last summer
  15. Thread: 2 stage furnace.

    by smoke
    Replies
    28
    Views
    2,641

    How often does a customer buy a 2 stage furnace...

    How often does a customer buy a 2 stage furnace without a 2 stage air conditioner? Why would you force a furnace to run for 5-10 or even 20 minutes before kicking in to second stage when the customer...
  16. Replies
    10
    Views
    1,312

    The fundamentals of the refrigeration circuit...

    The fundamentals of the refrigeration circuit between 22 and 410 are the same. The pressures are just higher with 410.

    If you have 25* of subcooling then either you are overcharged by a lot or...
  17. Replies
    14
    Views
    1,977

    If it were a heat pump I would guess check valves...

    If it were a heat pump I would guess check valves equalizing.

    Scroll compressor, system equalizing would be my guess.
  18. Perfect example how he didn't take care of the...

    Perfect example how he didn't take care of the homeowner by assuming the quick fix would suffice.
  19. Replies
    36
    Views
    3,854

    It's been working fine since 2001, I'm sure it's...

    It's been working fine since 2001, I'm sure it's not a design issue.
  20. Replies
    36
    Views
    3,854

    But after all of this he still needs to call a...

    But after all of this he still needs to call a technician. Sounds like too much homeowner diagnostic to me, wasting time and not finding the answers because you need test equipment.

    Checking an...
  21. Replies
    5
    Views
    1,238

    Additional $.02, Attic fan's intended purpose is...

    Additional $.02,
    Attic fan's intended purpose is to draw the heat out of your attic to reduce the penetration in you conditioned space.

    As mentioned above, the whole house fan in your ceiling,...
  22. Replies
    24
    Views
    2,936

    Hell, it's been a while since I wired one of...

    Hell, it's been a while since I wired one of these. One thing for certain, the VisionPro IAQ will control it properly if wired correctly.

    If memory serves me, I believe there should be a lead...
  23. Replies
    2
    Views
    530

    It doesn't sound like your indoor and outdoor...

    It doesn't sound like your indoor and outdoor units are a match.
    23 SEER outdoor with a 16 SEER indoor unit?

    Definitely need more info on this.
  24. Replies
    15
    Views
    1,439

    You would have to go up there and see. You could...

    You would have to go up there and see. You could test it but shutting the economizer and see what happens to your airflow.
    Typical poor distribution for RTU's.
  25. Thread: on call

    by smoke
    Replies
    10
    Views
    1,668

    For most of your calls you can diagnose almost...

    For most of your calls you can diagnose almost anything with a multi meter, small flashlight and a 10 in 1 screwdriver.
    I started using a mini 10v impact driver with a 5/16 nut driver to speed up my...
  26. Replies
    30
    Views
    3,758

    Oxy/Ace is also the only way to go if you have...

    Oxy/Ace is also the only way to go if you have any wind outside.
    I was trained with an Oxy/Ace rig. I've never owned a turbo torch head. The only time it's a pain is when you have to drag it across...
  27. Replies
    8
    Views
    785

    48 psi suction with 21* sub cooling? Sounds like...

    48 psi suction with 21* sub cooling? Sounds like a you need to find the restriction.

    ~smoke~
  28. Replies
    40
    Views
    4,396

    I'm shooting in the dark because I don't know and...

    I'm shooting in the dark because I don't know and just guessing but is there a connector you need to put on the harness plug for the 3rd zone? Sort of like a jumper so the computer thinks something...
  29. Thread: Contactors

    by smoke
    Replies
    34
    Views
    2,524

    Single pole contactor with shunt. ~smoke~

    Single pole contactor with shunt.


    ~smoke~
  30. Replies
    13
    Views
    2,646

    "-messed up the control board" Is the "Blower...

    "-messed up the control board"

    Is the "Blower Timer Delay Relay" located on the control board?
    I do believe this would be part of the control circuit.

    It is very difficult for the Pro's to...
  31. Replies
    13
    Views
    2,646

    Either you -messed up the control board...

    Either you
    -messed up the control board
    -mis-wired the low voltage
    -mis-wired the line voltage

    Without the proper testing equipment and the know-how it is too difficult to explain and this...
  32. Replies
    18
    Views
    1,744

    Do you know the actual square footage of your...

    Do you know the actual square footage of your house?
    I know that we are often surprised on here but I doubt someone would put a 2.5 ton system on a 2600sqft house.

    From the sounds of it, you...
  33. Replies
    16
    Views
    7,804

    Thanks hotrodrob! I figured that vacuum pump...

    Thanks hotrodrob!

    I figured that vacuum pump oil was a more refined mineral oil but will it hurt the pump to run compressor mineral oil?

    Any additional input is greatly appreciated!

    I am at...
  34. Thread: strange call

    by smoke
    Replies
    14
    Views
    1,268

    Not really your scenario but I found a condenser...

    Not really your scenario but I found a condenser fan running half the rpm's and running backwards one time.
    Fan motor was shorted to ground and the way it shorted internally the one side of the...
  35. Replies
    16
    Views
    7,804

    I am in a location in a part of the world where I...

    I am in a location in a part of the world where I cannot go down to Johnstone Supply and pick up a quart of vacuum pump oil.

    This is someone's idea of a temporary fix but I'm not convinced. I am...
  36. Replies
    16
    Views
    7,804

    Vacuum pump oil info needed!

    Someone please clarify something for me.

    I have always had the understanding that vacuum pump oil was a specific type of oil. That is why we purchase it at our supply house instead of any...
  37. Replies
    27
    Views
    4,420

    ^^with 30* of Subcooling and 22* Delta T? Low...

    ^^with 30* of Subcooling and 22* Delta T? Low charge?^^

    I bet there is a restriction and other people have added refrigerant to keep the indoor coil from freezing up. Completely flooded the...
  38. Replies
    6
    Views
    583

    Basic answer, the system has to first remove...

    Basic answer, the system has to first remove humidity before it will drop the temperature. So if your house was hot and full of humidity it could take a while. Hours.

    If you have concerns, call...
  39. Replies
    1
    Views
    532

    Call the company back and ask them to send a...

    Call the company back and ask them to send a different technician and that you still have the same problem.

    Something is wrong somewhere.

    ~smoke~
  40. I would not recommend changing the airflow...

    I would not recommend changing the airflow setting unless you know what you're doing. The furnace and the air conditioner are rated for a specific amount of cfm. Most air handlers/furnaces (blower...
  41. Proper airflow needs to be verified. Items that...

    Proper airflow needs to be verified. Items that are common issues, dirty/clogged evaporator coil, blocked return, blocked supply registers.

    Once airflow is verified then the refrigerant charge...
  42. Replies
    18
    Views
    1,744

    Are these the overall, outside, dimensions of...

    Are these the overall, outside, dimensions of your house?
    You are correct in saying that 105'x25' = 2625sqft.
    You have to measure each room individually and add up the space inside that you are...
  43. Replies
    79
    Views
    7,747

    There isn't one HVAC Technician on this site that...

    There isn't one HVAC Technician on this site that wouldn't shake his head while looking at your photos.

    I have seen this too many times in high end new construction homes. Unfortunately it appears...
  44. At 33 years old you should replace the entire...

    At 33 years old you should replace the entire system. You want a matched set with matched technologies. A lot has changed in our world over the last 33 years.

    ~smoke~
  45. Replies
    5
    Views
    893

    You can isolate power to the different circuits,...

    You can isolate power to the different circuits, one at a time.
    Check your control voltage going to the board to make sure the tstat is sending it to the right terminals.

    For instance you can...
  46. If only you could get a true service technician...

    If only you could get a true service technician to diagnose your problem.

    Call someone else.

    Without being there,
    -The return is probably too small
    -The system is most likely overcharged at...
  47. If only you could get a true service technician...

    If only you could get a true service technician to diagnose your problem.

    Call someone else.

    ~smoke~
  48. Replies
    33
    Views
    5,632

    Yep. Pretty standard for the Middle East too. ...

    Yep. Pretty standard for the Middle East too.


    ~smoke~
  49. Replies
    20
    Views
    2,748

    There's no telling from the pictures, I hope that...

    There's no telling from the pictures, I hope that the other vertical copper pipe painted to match the walls, with the flexible copper water pipe threaded to it, is not the natural gas supply...
    It...
  50. Replies
    26
    Views
    3,529

    Another perfect example of, you get what you pay...

    Another perfect example of, you get what you pay for...

    I bet this was a DIY

    ~smoke~
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