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Type: Posts; User: brewidus

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  1. Replies
    22
    Views
    4,763

    I'm a brewer too. I use a coil of 3/8" copper as...

    I'm a brewer too. I use a coil of 3/8" copper as a wort chiller. I drop it in 20 minutes before the end of the boil. During the winter, the tap water is cold enough to lower the wort temp to 70. ...
  2. Word on the street is that Willis Carrier was...

    Word on the street is that Willis Carrier was actually a giant flamer. I guess we all need to go find a new profession now.
  3. Replies
    14
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    1,433

    When you talk about dampers closing are they...

    When you talk about dampers closing are they dampers on VAV boxes? If so, as the zones are satisfied and the boxes damper down, the system requires less airflow.

    Can you read the airflow at...
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    869

    Fan powered boxes are good for buildings that...

    Fan powered boxes are good for buildings that require heat during unoccupied hours. The box,whether series or parallel, can cycle on with reheat without the main AHU needing to be in operation.
    ...
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    2,075

    You need to estimate the external static pressure...

    You need to estimate the external static pressure drops through all of the system components external to the unit.

    Longest supply duct run drop
    Terminal unit drop
    Damper drop
    Flex duct drop...
  6. Thread: NATE exam

    by brewidus
    Replies
    3
    Views
    1,211

    I read the following: Guide to the NATE/ICE...

    I read the following:

    Guide to the NATE/ICE Certification Exams book and took all the tests.
    Preparing for the Nate Exam Core Essentials
    Preparing for the Nate Exam Air Conditioning and Heat...
  7. Thread: VAV Box noise

    by brewidus
    Replies
    3
    Views
    721

    Might it be going through calibration at 4:15 on...

    Might it be going through calibration at 4:15 on mondays? I've seen problems with JCI box controllers tripping out a smaller air handler on high static when the boxes closed for calibration during...
  8. Replies
    9
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    580

    If the system is big enough, the fan is sized for...

    If the system is big enough, the fan is sized for the block cooling load of the building. The block load determines the cfm for the system based on a peak cooling day. All of the thermal zones...
  9. Replies
    23
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    1,381

    Thanks for all the great advice, both technical...

    Thanks for all the great advice, both technical and philosophical. My conscious will be clear whichever way we decide to go.
  10. Replies
    23
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    1,381

    Pre-Alzheimers Ethical Struggle

    My buddy asked me to disable his girlfriend's mother's thermostat at her home. He tells me that she has terrible memory issues and has been cranking the stat to extremes. When she gets cold she...
  11. Replies
    3
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    906

    I'm not sure what the mechanical code is up...

    I'm not sure what the mechanical code is up there, however, the IMC 2006 requires 400 cfm per linear foot of hood for an island hood, or 200 cfm per linear foot for a wall mounted canopy hood. These...
  12. Replies
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    2,617

    I use the CBI CT300 chinese knock-off hydraulic...

    I use the CBI CT300 chinese knock-off hydraulic expander. It works great. I use it on almost every install. It was over $100 cheaper than the lever action yellow jacket a couple of years ago. I...
  13. Replies
    54
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    4,731

    I put a TXV on all new residential installs. ...

    I put a TXV on all new residential installs. TXV's are more complicated than a piston, however they are worth the extra work in my opinion. A TXV uses feedback from the system to meter its flow...
  14. Thread: Nate and 608

    by brewidus
    Replies
    2
    Views
    393

    Nate and 608

    I'm getting ready to take Nate Core Service and Heat Pump Service in a couple of weeks. I passed the 608 Universal a few years ago. Do I need to re-memorize all of the dates and vacuum requirements...
  15. Thread: Startec HPR-3

    by brewidus
    Replies
    0
    Views
    410

    Startec HPR-3

    I picked up a Startec HPR-3 recovery unit at an auction. This thing performs recovery, liquid recycling and works as a vacuum pump. 1.5 HP with a belt driven vacuum pump with multiple replaceable...
  16. Replies
    1
    Views
    465

    Knock-Off Expander Swager

    Has anyone used the CBI model CT300 sold by northway's machinery? It appears to be a knock-off of the Mastercool Hydra-Swage.
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