Search:

Type: Posts; User: master mechanic

Page 1 of 2 1 2

Search: Search took 0.01 seconds.

  1. Replies
    13
    Views
    1,567

    Climatemaster wshp

    I install 5-8 Climatemaster WSHP for the last 10 years on replacement jobs and I have not had hardly any problems as most of you guys write about. Keep in mind Climate master does manufacture 3 way...
  2. Replies
    5
    Views
    5,460

    restaurant a/c

    Install make-up fan to cancel out the majority of the exhaust fan. Provide outside air on new a/c system and use digital manometer to adjust amount of outside air to dinning room to achieve positive...
  3. Replies
    16
    Views
    4,209

    big factory mistake

    mardoman

    Research your own replacement compressor and live with the results. You are not the only company in the hvac world with concerns about capacity and selection.Fix the unit and move on.
  4. Replies
    24
    Views
    7,818

    service tool V

    workingman

    I just got the software and used it twice. I didn't try to reconfigure the program on these particular units. I will try to find out and get back to you.

    master mechanic
  5. Replies
    3
    Views
    737

    cfm

    measure your rpm on the blower pulley, take static preasure readings on supply and return duct near ahu. plot readings on manufactures data sheets.
    This is not as accurate as a duct traverse but it...
  6. Replies
    24
    Views
    7,818

    carrier servicetool

    I just purchased service tool V and loaded it to my laptop. It is a kit with a converter box , software disc, and usb cable. I logged on to a 50eko44-5 this morning; it work great. I think the cost...
  7. Replies
    3
    Views
    2,945

    carrier service tool V

    Does anybody have this software and if so is it user friendly. I need this software so I can access a 50ek-044-6 to check setpoints and troubleshooting of economizer.
  8. access to carrier rooftop parameters 50Ek-044-6

    My customer has a vav system using this model rooftop unit. I want to know what program can I purchase from carrier to access and view set points , economizer, sensor readings ect. I have a old...
  9. Replies
    5
    Views
    1,292

    wiring problem

    It's seems you have a low voltage problem between the thermostat and low voltage terminal block. Disconnect thermostat wire on both sides ; ring out wires and check each one to ground. You stated...
  10. Replies
    10
    Views
    1,368

    hot gas bypass

    When I suggested use hot gas bypass as the last stage of capacity it means unload compressor to it's lowest capacity before having hot gas bypass energized. If you do not have capacity reduction with...
  11. Replies
    10
    Views
    1,368

    reheat on trane dx equipment

    I believe you are confussed about the job application. I speculate you have hot gas by pass feeding into the nozzle of the txv. If so this should prevent the coil from freezing up and it should be...
  12. Replies
    21
    Views
    1,796

    hvacdoctor The supply and return elbows is...

    hvacdoctor

    The supply and return elbows is causing a major duct restriction especially on a light commercial rooftop unit. It would be difficult to over come that excessive static even with a...
  13. Replies
    18
    Views
    1,759

    hardwire Put two L-series Lennox rooftops...

    hardwire

    Put two L-series Lennox rooftops you won't be sorry.
  14. Replies
    2
    Views
    600

    Honeywell Touchscreen or T-7300

    Honeywell Touchscreen or T-7300
  15. Replies
    18
    Views
    1,759

    I have installed rooftops units from Carrier ,...

    I have installed rooftops units from Carrier , Trane , Lennox. AAon, York,ect. I feel the Lennox L-series is hard to beat. One unit is more economical to install than two; however if space...
  16. Read a Titus, Price,or other grille manufactures...

    Read a Titus, Price,or other grille manufactures catalog.It descibes selection for different applications. Perforated diffuser, slot diffusers and cone diffusers. They all perform differently with...
  17. Replies
    21
    Views
    1,796

    Buy a magnehelic gauge or digital manometer and...

    Buy a magnehelic gauge or digital manometer and learn how radical fittings cause extreme preasure drops.You can not put 10 lbs of potatoes in a 5 lb sack.
  18. Replies
    4
    Views
    794

    I agree, do anything you can to eliminate dog...

    I agree, do anything you can to eliminate dog houses. Start pricing your jobs using a roofing contractor. Explain to the customer the advantages.
  19. Replies
    3
    Views
    500

    Perform a duct traverse and acquire total cfm to...

    Perform a duct traverse and acquire total cfm to ensure 350 - 400 cfm per ton is being delivered across cooling coil. If a traverse is to difficult measure external static and blower rpm and plot cfm...
  20. Replies
    7
    Views
    1,882

    Outside air introduced into the a/c system main...

    Outside air introduced into the a/c system main purpose is to provide ventalition as well as providing positive preasure inside buildings [in hot humid climates]. It also serves as free cooling...
  21. Replies
    44
    Views
    3,579

    I second that atmosphere

    I second that atmosphere
  22. Replies
    10
    Views
    2,128

    Yes you can still be a gentlemen, howevever you...

    Yes you can still be a gentlemen, howevever you go ahead with trying to fit a round peg in a square hole.
  23. Replies
    5
    Views
    629

    I had this problem last week on a 60 ton Trane...

    I had this problem last week on a 60 ton Trane chiller. I found my voltage to be lower than normal. I usually measure around 487v and I was reading 445v along with dirty condensers coils caused my...
  24. CHECK SUPERHEAT ON BOTH TXV'S REFERENCING it's...

    CHECK SUPERHEAT ON BOTH TXV'S REFERENCING it's respective suction line. One valve is overfeeding and the other under feeding refrigerant through the coil
  25. Replies
    10
    Views
    2,128

    Gentlemen, why can't you install a 38ARS009...

    Gentlemen, why can't you install a 38ARS009 CONDENSING UNIT RATED AT 8.5 TONS.
  26. Replies
    22
    Views
    1,948

    Stay with the best buy Fluke. Purchase a...

    Stay with the best buy Fluke. Purchase a Fieldpiece for a back up meter. All in one meters is for Mechanics who are starting out in the field. When on commercial jobs you need indivial meters to...
  27. Replies
    10
    Views
    1,497

    I would not install a inverted trap unless the...

    I would not install a inverted trap unless the evaporator is below the compressor. A 20 ton Caryle compressor has four cylinder If you unload one bank you are at 50% capacity. Verify the coil has a...
  28. Replies
    4
    Views
    703

    You install a auto changeover thermostats in each...

    You install a auto changeover thermostats in each zone with two stages of cooling and two or three stages of heat.Any zone calls for cooling brings on first stage or second stage of cooling. If a...
  29. Replies
    5
    Views
    752

    I would think 100 tons would not be adaquate...

    I would think 100 tons would not be adaquate thats only 500SQ ft per ton for an industrial building with machinery and large outdoor air requirements.
  30. Replies
    5
    Views
    752

    At what temperature are you tring to achieve and...

    At what temperature are you tring to achieve and how much exhaust will be used for equipment and what is the ceiling height.
  31. Replies
    9
    Views
    1,777

    After reading your problem I went to my truck to...

    After reading your problem I went to my truck to check my powerheads. A KT-53 VCP100 has threads that are larger than 43 and smaller than 83. I ran across this before on a Lennox rooftop were I had a...
  32. Delta T depends on indoor humidity. The higher...

    Delta T depends on indoor humidity. The higher the humidity the lower the delta T . If you are exceeding 20f you have a airflow problem.
  33. Replies
    15
    Views
    1,620

    always replace condensor fan motors with oem's....

    always replace condensor fan motors with oem's. Are you sure you chemically clean the coils and separated them if possible. Is your motor exceeding RLA due to worn bearings
  34. Replies
    11
    Views
    1,458

    I clean alot of condensors coils on rooftops,...

    I clean alot of condensors coils on rooftops, chillers , splits, ect. I often use a preasure washer to apply the chemical and a hose to rinse. I also find taking the nozzle off the hose and use...
  35. Replies
    3
    Views
    542

    No, but is looks inovative. What's the application

    No, but is looks inovative. What's the application
  36. Replies
    91
    Views
    32,572

    I have been using the Carrier flowtronic monitor...

    I have been using the Carrier flowtronic monitor program for several years. On the program it displays the exv output signal from the processor (in steps ) and the actual position of the valve( feed...
  37. Replies
    11
    Views
    875

    What method of sizing equipment did you use for...

    What method of sizing equipment did you use for this application.Is the area with 18 ft ceilings a warehouse with a office space in the same building
  38. Replies
    46
    Views
    4,807

    you know where I stand

    you know where I stand
  39. Replies
    46
    Views
    4,807

    American Standard or Trane using Variable speed...

    American Standard or Trane using Variable speed air handler and honeywell touch screen t-stat. you won,t be disappointed.
  40. Replies
    20
    Views
    2,369

    journeyman, I having a discussion with some...

    journeyman,

    I having a discussion with some goodman fans on "goodman and good" in the residential forum can you give me some back up
  41. Replies
    46
    Views
    4,807

    My dad is not in the business nor do I need his...

    My dad is not in the business nor do I need his or your approval. I will not waste my time with you janijunk, goodman, gmc, flex duct, ductboard,low quality mechanics.
  42. Replies
    46
    Views
    4,807

    junkhound, I am glad you don't mind modifying...

    junkhound,

    I am glad you don't mind modifying your brand on start up.
    I guess I am the only one who likes quality equipment.I will not change no mater how many Goodman sucess stories I here.
  43. Replies
    46
    Views
    4,807

    POOLPAK heats indoor pools as well as provides...

    POOLPAK heats indoor pools as well as provides cooling and humidity control of space.
  44. Replies
    46
    Views
    4,807

    AAON, POOLPAK, LEIBERT, DES CHAMPS THATS WHAT...

    AAON, POOLPAK, LEIBERT, DES CHAMPS THATS WHAT DADDY LIKES
  45. Replies
    46
    Views
    4,807

    I don,t plan on changing the minds of the vast...

    I don,t plan on changing the minds of the vast dealer base that Goodman has all over. Cost effective equipment with high profit margins shows the type of dealers that concern with the almighty dollar...
  46. Replies
    46
    Views
    4,807

    I disagree, Goodman is poor quality equipment and...

    I disagree, Goodman is poor quality equipment and is often sold to anyone who has a set of gauges and a tank of refrigerant. American Standard or Trane is what you need to buy. It is worth the...
  47. Could not have said it better JIMBOB73

    Could not have said it better JIMBOB73
  48. Replies
    13
    Views
    2,077

    The chech valve does nothing to solve the problem...

    The chech valve does nothing to solve the problem with coil icing at full capacity. Poor heat transfer of a 1961 coil with electrolosis and mismatched equipment.
  49. Replies
    10
    Views
    1,512

    pm

    dx, chill water , boilers, controls, air side ? what type of buildings?
  50. Replies
    2
    Views
    595

    time delay problem

    Do you have delay on make or delay on break time delay?
    Are you sure the input and output on the timer is correct?
    What brand time delay?
Results 1 to 50 of 76
Page 1 of 2 1 2
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event