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  1. Replies
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    Cleaning out my garage. Anybody need MR88R...

    Cleaning out my garage. Anybody need MR88R boards? Make me an offer.
  2. Replies
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    311

    Trane EXV 1U3 modules

    I have two Old style used 1U3 modules for sale. New style 1U3 will require you to change EXV's also. These were removed from a RTAA215 and a RTAA185.
  3. Thread: Megger

    by fixerup
    Replies
    13
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    1,520

    1000 ohms per volt. 460 volt compressor should be...

    1000 ohms per volt. 460 volt compressor should be at least 460,000 ohms
  4. Thread: Subcooling?

    by fixerup
    Replies
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    473

    Just a general question. Does Colder ambient...

    Just a general question. Does Colder ambient temperatures increase or decrease your subcooling?
  5. Thread: Subcooling?

    by fixerup
    Replies
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    473

    Subcooling?

    Will subcooling decrease or increase on cooler days on an air cooled A/C unit with a TXV.
  6. Replies
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    5,466

    I have some MR88R controllers available.

    I have some MR88R controllers available.
  7. Replies
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    447

    TAC CSI MR88R control boards

    Over 20 used and good working condition MR88R control boards $200 each plus shipping.
  8. Replies
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    697

    2001 date. All in good working condition. Make an...

    2001 date. All in good working condition. Make an offer.
  9. Replies
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    697

    Are you still looking for MR88R controllers?

    Are you still looking for MR88R controllers?
  10. Replies
    4
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    599

    Madonna? I thought that was Betty White...

    Madonna? I thought that was Betty White performing at the half time show.
  11. Replies
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    2,188

    ?????? You lost me Max.

    ?????? You lost me Max.
  12. Replies
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    2,188

    Its Multistack with 10 modules, load is very...

    Its Multistack with 10 modules, load is very stable (shut off other modules to keep load up)tandem scroll compressors, txvs are stable within a degree once subcool gets up around 7, two condenser...
  13. Replies
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    2,188

    LMAO Maxter! I feel so dumb. If subcooling is...

    LMAO Maxter! I feel so dumb. If subcooling is higher at lower ambient, then why do I see more sight glasses bubbling in colder temps. In order to have subcooling does't it have to be a solid column...
  14. Replies
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    1,767

    Only with persistence and patience.

    Only with persistence and patience.
  15. Replies
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    512

    water is expanding when heated, with no expansion...

    water is expanding when heated, with no expansion tank the water pressure will increase until the releif valves blow. Or pressure regulator could be bad.
  16. Replies
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    3,754

    Saftey glasses and good gloves!

    Saftey glasses and good gloves!
  17. Replies
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    2,188

    Proper subcooling on an air cooled chiller?

    What is the proper way to determine the correct subcooling for an air cooled chiller when you have low ambient conditions? Is there a chart or formula where you can enter temps to determine what your...
  18. Thread: Easter candy

    by fixerup
    Replies
    9
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    1,885

    A whole bag of Robins Eggs!

    A whole bag of Robins Eggs!
  19. Replies
    18
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    2,758

    My guess is the internal pressure relief in the...

    My guess is the internal pressure relief in the compressor is weak and opening up prematurely.
  20. Replies
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    1,678

    Thanks guys. TAC mine is older than the info you...

    Thanks guys. TAC mine is older than the info you posted. The unit I am working on is a recip. compressor. The defrost circuit board has two sensors theat come off the bottom of the board, one with...
  21. Replies
    3
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    1,678

    Old Lennox wiring diagram?

    Can anyone tell me where I can find a diagram online for a Lennox M# CPH10-653-1Y?
    I can not read the serial # on the tag.
  22. Thread: Humidifier?

    by fixerup
    Replies
    0
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    370

    Humidifier?

    I am looking for 3 humidifiers to install in a 7500sq ft apartment with 14 ft ceilings. These are going on two 4 ton and one 5 ton HPs. Need to have a wireless humidity sensor since I can not get...
  23. Replies
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    1,189

    Less likely to hold water or debris if mounted...

    Less likely to hold water or debris if mounted upside down.
  24. Replies
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    1,488

    Thank you Joker.

    Thank you Joker.
  25. Replies
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    1,488

    Nordyne coil #C30A 048U-B

    Can anyone break down this model number? It is on a A coil for a mobile home unit. I am guessing 48,000 btu's, but what do the other numbers signify.
  26. Replies
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    1,605

    Yep that sounds right.

    Yep that sounds right.
  27. Replies
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    2,597

    Honeywell TH800 averaging indoor sensors

    Is there a way I can use two remote indoor sensors and average them or do I have to do four indoor sensors?
  28. I'll pick #24 Jeff Gordon.

    I'll pick #24 Jeff Gordon.
  29. Replies
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    959

    You might have better luck with Mulistack and...

    You might have better luck with Mulistack and their new Maglev flooded evap chiller. They have a really good training class on this chiller. Smardt Tech support is not easy to get up with and may...
  30. Replies
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    2,820

    Does anyone have a phone # for tech supprt on...

    Does anyone have a phone # for tech supprt on these Carrier mini splits. Local rep got me in touch with a tech support guy and when I asked him about my situation he says " they make these things in...
  31. Replies
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    2,820

    This a cooling only unit. condenser fan relay...

    This a cooling only unit.
    condenser fan relay gets 30 vdc from from air handler unit, compressor relay gets 30 vdc from air handler these are two different signals. My guess was if evap coil sensor...
  32. Replies
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    2,820

    I did not see any low ambient kit. It was 40-45 F...

    I did not see any low ambient kit. It was 40-45 F today.
  33. Replies
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    2,820

    Carrier mini split problem

    M# 40BNC012101 found this unit was not sending a signal to the condenser fan but was sending a signal to run the compressor. Recycled the power at cond unit before seeing any codes at air handler...
  34. Thread: Goodman??

    by fixerup
    Replies
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    9,670

    The quality of service and installation of the...

    The quality of service and installation of the unit are more important than the brand of equipment. If it is not properly maintained or installed it is going to fail prematurely no matter what name...
  35. Replies
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    2,890

    Direct drive 5' shaft, motor attached via...

    Direct drive 5' shaft, motor attached via coupling to shaft, opposite end has bearing, 4 blower wheels in between and one at end after shaft bearing. The coils are very clean. Unit still vibrates...
  36. Replies
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    2,890

    Direct drive.

    Direct drive.
  37. Replies
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    1,253

    Once you get to 32 F on your saturation temp any...

    Once you get to 32 F on your saturation temp any humidity going acros the coil will start to stick to the coil. Causing it to frost up and eventually freezing over the coil.
  38. Replies
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    2,229

    I like turbos answer.

    I like turbos answer.
  39. Replies
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    2,890

    Coils are very clean. Thanks Joe.

    Coils are very clean. Thanks Joe.
  40. Replies
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    2,890

    Trane unit ventilator noisy & vibrating?

    Customer has a 6 yr old UV that had a bad vibration. So I inspected shaft bearing and motor bearings. Shaft bearing had small amount of play and motor was very hot. I changed the motor and shaft...
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    1,645

    My guess was citazenship!

    My guess was citazenship!
  42. Replies
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    1,606

    HSA health insurance account ??????

    Anyones company doing a HSA account ? If so what do like or dislike about the plan.
  43. Doesn't the Honeywell 6000 series do millivolts?

    Doesn't the Honeywell 6000 series do millivolts?
  44. Replies
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    614

    Thanks fo the response. Looks like I need to...

    Thanks fo the response. Looks like I need to research what canon has to offer.
  45. Replies
    7
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    614

    Looking for new digital camera!

    Anyone have the Nikon D5000? If so what do you like and dislike about it? Any other camera you would recommend?
  46. Replies
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    677

    Tiger and Joe, LMAO!!!

    Tiger and Joe, LMAO!!!
  47. Replies
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    574

    And UNCC beat Cinncinati B-Ball.

    And UNCC beat Cinncinati B-Ball.
  48. Replies
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    947

    I have done the DM with the diffuser wall. But it...

    I have done the DM with the diffuser wall. But it has been awhile. I thought I remember having a stop major book. This chiller has DK compressors.
  49. Replies
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    947

    carrier 19DR tear down manual?

    Does anyone know where I can get a tear down manual for a carrier 19DR?
  50. Replies
    473
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    20,622

    Now that you are aware of this. Are you going to...

    Now that you are aware of this. Are you going to buy some long sleeve uniforms?
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