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Type: Posts; User: crispE

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  1. Replies
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    just calculate the velocity required to keep the...

    just calculate the velocity required to keep the oil miscible in the lines using the compression rate of the compressor and the lineset length and size.
  2. Replies
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    1,273

    omnipotence

    get a tougher skin kid.

    on target subcool with high superheat could mean a few things.
    1. charge is low and condenser is underperforming
    2. evap/condenser performing normally, but low charge...
  3. Ecobee 4 IMO the best wifi stat available right...

    Ecobee 4 IMO the best wifi stat available right now.
  4. Mitsubishi SLZ Ceiling cassette and PAR-33MAA controller function codes

    I am having a few noise issues with several ceiling cassettes ive installed.
    Model: SLZKA09NAR1

    Stat: PAR-33MAA

    Im wondering if anyone has access or a link to the full function codes for these...
  5. Replies
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    3,129

    Low superheat, add more refrigerant. Idk why that...

    Low superheat, add more refrigerant. Idk why that seems like the wrong thing to do.
  6. Replies
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    1,458

    I think you can rattle can those big white pipes...

    I think you can rattle can those big white pipes into big black pipes. I always let customers tell me what they want.
  7. It was somewhere between 0 and 20 on the service...

    It was somewhere between 0 and 20 on the service manual. Hard to tell on some of those little folded up sheets.
  8. AC Charging, orifice, R22 do i actually know what im doing?

    Helped out a fellow construction worker this morning.

    The coil was frozen solid last night. Had them turn everything off.
    I was there about 3 months ago to fix the ac. Blown cap and i cleaned the...
  9. Replies
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    415

    If you measure the temperature of the high side...

    If you measure the temperature of the high side line entering the condenser coil it will be superheated vapor. If you measure after the condenser coil it should be subcooled liquid. A good...
  10. Replies
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    3,273

    Thanks for the laugh.

    Thanks for the laugh.
  11. its possible the system is not longer operating...

    its possible the system is not longer operating as it should be.
    what thermostat do you have.
    what climatemaster do you have.
    did you leave a window open upstairs?
  12. Replies
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    2,687

    Doing that on my 4 ton ac tomorrow. Lets find out...

    Doing that on my 4 ton ac tomorrow. Lets find out together.
  13. Replies
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    37,722

    I did not use an electronic leak detector. Just...

    I did not use an electronic leak detector. Just alot of bubbles. Im still trying to figure out the difference between straight piece copper and rolled soft copper. And if the benefits of having...
  14. Replies
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    10,842

    Waterflow? Does the unit have its own flow center...

    Waterflow? Does the unit have its own flow center or is it a solenoid? Or is it twinned with a relay and paired with another pump. Pull off the spade terminals on the hipres switch and replace them...
  15. Replies
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    5,838

    Assuming the ground loop was done using HDPE pipe...

    Assuming the ground loop was done using HDPE pipe and fusion fittings and installed properly, big LOL there. Buy some geo loop conditioner pump it into the system and pressurize the loop to 80-100...
  16. Replies
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    7,570

    Sounds like sludge buildup in the condensate then...

    Sounds like sludge buildup in the condensate then the system goes into a condensate overflow fault.
  17. Replies
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    37,722

    Initial pressures were 145hi 40 lo with...

    Initial pressures were 145hi 40 lo with subcooling of 0 degrees and superheat of about 65. Idwb 74 and oddb 79. Added 4lbs r22 then 170 hi and 70 lo with 9 subcooling and 14 superheat, slightly over...
  18. Replies
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    37,722

    Honestly im not 100% sure i just know that it is...

    Honestly im not 100% sure i just know that it is the copper you get in straight lengths. Which i have never used before in residential. I always assumed that copper of that kind was not to be used as...
  19. Replies
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    37,722

    Refrigerant copper vs plumbing copper?

    I have a friend with a system where i am very close to certain there is a leak in the wall which goes up 2 stories to the attic.
    Ive leak checked the system in all accessible locations and im sure...
  20. Replies
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    1,757

    sounds expensive. just take a quiet and efficient...

    sounds expensive. just take a quiet and efficient standard condenser with ambient control and attach that to a water/ref coaxial with a txv and a pump. wire everything off a contactor and any 24v...
  21. Replies
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    16,341

    DX Equals way more money. If you want to steal...

    DX Equals way more money. If you want to steal the tax credit just install a condenser for cooling with a geo unit and only use aux for heat. Problem solved you shaved a corner. Dont forget to change...
  22. Replies
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    Its a WF so im assuming the port size is 1-1/4 "...

    Its a WF so im assuming the port size is 1-1/4 " what you could do is figure out which side is leaking remove the pipes from top and bottom of the flow center. Remove the pump on that side and just...
  23. Its a refrigeration system. water is pumped...

    Its a refrigeration system.
    water is pumped through the heatexchanger, usually a coaxial heat exchanger. water in the center and refrigerant on the outside.
    same as a water condenser to water...
  24. Replies
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    11,385

    I think what i said has been heard loud and clear...

    I think what i said has been heard loud and clear and there seems to be tons of valuable information in this thread as to go about pulling a vacuum. But if you have good working equipment with a good...
  25. Replies
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    11,385

    The best method to pull a good vacuum is to have...

    The best method to pull a good vacuum is to have a pump that pulls down low, maybe 50 microns or better, with good oil and a set of gauges that dont leak under vacuum. i generally pull to 100...
  26. Replies
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    695

    Its pretty common to see a screen failure after...

    Its pretty common to see a screen failure after about 5 years for those Vision Pros.
  27. Replies
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    I have resolved the issue. After i uninstalled...

    I have resolved the issue. After i uninstalled the app and cleared cache, i then reinstalled the app and removed the existing location which failed made a new one and the wifi works for now. they...
  28. Just put a giant ****ing lineset on it. By the...

    Just put a giant ****ing lineset on it. By the time all the oil is out of the compressor you will be doing sales at a different company. Oil return is an old myth. New compressors are sealed and dont...
  29. Thread: Flame Failure!

    by crispE
    Replies
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    2,384

    I would check the polarity of the input voltage,...

    I would check the polarity of the input voltage, black wire is the hot wire. But it sounds like a bad board. 1.5 microamps is plenty for the flame sense. Check those wire ends.
  30. Ive been doing this a while im not quite sure...

    Ive been doing this a while im not quite sure what your talking about here. Are you asking about why manufactures have pressure charts or are you asking what principles come into play when you want...
  31. Replies
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    I have not figured out the issue. I did speak...

    I have not figured out the issue. I did speak with tech support and they think its possibly a bad batch. I bought 2 and same problem with both.
    During the app setup on the phone it refuses to...
  32. Replies
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    Honeywell T6 Pro

    Ive recently, 3 weeks ago, purchased a new T6 pro from the supply house. Installed it at my house to test it out. As a thermostat everything works fine. Single stage 90% gas with simngle stage ac....
  33. Thread: Belimo actuator

    by crispE
    Replies
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    2,735

    what opens the valve. what kind of...

    what opens the valve.

    what kind of "compressor" are we talking about.

    if the end switch on the actuator is used to energize the y terminal at the unit board, does the o terminal need to be...
  34. Thread: Belimo actuator

    by crispE
    Replies
    12
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    2,735

    basically the 1 2 and 3 on the bottom are as...

    basically the 1 2 and 3 on the bottom are as follows
    1 - common
    2 - 24vac turn clockwise
    3 - 24vac turn counter clockwise
    the top selector switch will reverse that order of 2 and 3

    the right 1...
  35. how many forced air zones and how many radiant...

    how many forced air zones and how many radiant zones and how many thermostats share equipment.
    you keep saying Tstats plural. so im assuming every radiant zone has 1 of the 8800s and every forced...
  36. Replies
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    my two cents. from what i have read it appears...

    my two cents.
    from what i have read it appears the system "works" in cooling mode. when switched to heat mode the system runs for a short period until it kicks high pressure or internal overload....
  37. Replies
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    29,270

    I know mitsubishi makes water source condensers...

    I know mitsubishi makes water source condensers for their citi multis, only 3 phase at this point. As soon as they step up and make them single phase, WF and Climatemaster are going to be F'd right...
  38. Replies
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    YES. A 4 ton ground loop in moist soil could be...

    YES.
    A 4 ton ground loop in moist soil could be 1/2 the size of a 4 ton loop in bone dry soil. The moisture in the soil will greatly effect the radius of heat transfer around each tube in the...
  39. Replies
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    Im assuming this system worked perfectly for...

    Im assuming this system worked perfectly for years and years without getting the ground loop to near 100 degrees.
    Things to check
    1. Verify the amount of water flow going through the heat...
  40. Replies
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    16,807

    Anyone see the pieces of pvc used to prop the fan...

    Anyone see the pieces of pvc used to prop the fan up higher, assuming the replacement motor shaft was too long and hitting the compressor. The motor replaced on that unit was not the stock motor. ...
  41. Airflow probably but also i would imagine an...

    Airflow probably but also i would imagine an overcharged system. The subcooling is normal, but superheat should be somewhere around 20-25 at 80 degree ambient and 75 indoor unless ur humidity is...
  42. Thread: Climate master

    by crispE
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    1,207

    If its closed loop, the pump is too small. If its...

    If its closed loop, the pump is too small. If its open loop, its piped wrong.
  43. Replies
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    Yep do this. And btw checking the charge should...

    Yep do this.
    And btw checking the charge should be done by weighing out the refrigerant by reclaiming it. Also remeber when you reclaim even if to a vaccuum several ounces of refrigerant will be...
  44. Probably a 30 and a 20 in parrallel to replace a...

    Probably a 30 and a 20 in parrallel to replace a 50 lol.
    Heres my question, i have a laptop that wont turn on but i replaced all 3000 capacitors and it still doesnt work. Is it fixable?
  45. Replies
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    5,012

    I pull a vaccuum, make sure it holds, then leave...

    I pull a vaccuum, make sure it holds, then leave it on and slowly purge from the vapor to liquid line. I close off my low side valve and leave the liquid open. Once i see the liquid line needle move...
  46. Replies
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    1,363

    Failed txv coupled with leak? What is the...

    Failed txv coupled with leak? What is the subcooling and superheat. And wtf is common suction, is this a multi compressor unit. Not attacking you but i see many problems here and no information of a...
  47. Replies
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    2,548

    Units 2 i would suspect airflow at the indoor...

    Units 2 i would suspect airflow at the indoor coil, dirty coil maybe, and unit 3 i would think outdoor coil restriction, dirty coil bad cap on the fan motor??, 60 psi is not low for the vapor...
  48. Replies
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    Havent read the comments but for unit #1 i would...

    Havent read the comments but for unit #1 i would reccomend replacing the txv and the liquid line filter drier. It seems like a clogged screen or something else in the liquid side. Probably didnt...
  49. Replies
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    My guess. Over charged unit with bad indoor txv....

    My guess. Over charged unit with bad indoor txv. Probably running subcooling above 40 degrees and a superheat of 0. Weigh the charge out and question whoever has been working on it. Isnt this tech to...
  50. Replies
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    Why would you assume the ground loop is good. In...

    Why would you assume the ground loop is good. In my experience the ground loop is the biggest problems for fast talking eddies "AAA Advanced Awesome HVAC INC" coupled with aggressive advertising. You...
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