Search:

Type: Posts; User: Restaurant mech

Page 1 of 7 1 2 3 4

Search: Search took 0.01 seconds.

  1. Well the wholesaler is right. A big hole that's...

    Well the wholesaler is right. A big hole that's not properly sealed will freak out the thermostat in the wall unit....
    As far as the squeaking noise it could be a mouse in the wall from the...
  2. Replies
    14
    Views
    323

    You can raise or lower the temperature coming out...

    You can raise or lower the temperature coming out of the registers simply by increasing or decreasing the airflow at the air handler......
    Temperature coming out of the ducts means very little as...
  3. Replies
    16
    Views
    422

    There are probably a dozen different ways to...

    There are probably a dozen different ways to lower capacity. Some work well long term. Some don't.
    Beware if the unit cycles alot after the conversion.
    They could just be installing a...
  4. You need a good tech.... 13 years old does not...

    You need a good tech....
    13 years old does not automatically make it need replacing.
    About the only time i reccomend replacing is when heat exchanger is done.....
  5. Replies
    28
    Views
    390

    10-15 sounds close depending on the part of the...

    10-15 sounds close depending on the part of the cycle. Not familiar with this particular model or make but really they all work the same way.
    Has the unit been running for days? Because they...
  6. Replies
    28
    Views
    390

    You need to understand that the pressures showing...

    You need to understand that the pressures showing on the machine tag are system TEST pressures.
    That's what makes it obvious you have no clue what you are doing. I.E. dont go ABOVE 130 psi on...
  7. Replies
    4
    Views
    216

    pretty rare i change a module without changing...

    pretty rare i change a module without changing motor....
  8. Replies
    28
    Views
    390

    Here is a hint.... the low side pressure should...

    Here is a hint.... the low side pressure should coincide with evaporator temperature.
    30 psi seems a little high to me for 134 and end of cycle ice sheet.
    This isn't automotive where the...
  9. Replies
    25
    Views
    510

    I would just heat the joint up. Sweat it a part,...

    I would just heat the joint up. Sweat it a part, clean it up, reassemble it then braze with silfoss.
    If it's really critical that it doesn't leak then I'd hit it with flux and 45% silver braze.
    ...
  10. Replies
    6
    Views
    363

    New construction

    Been watching this house go up beside my girlfriend's condo.
    So many mistakes made in the framing and windows. But seeing the condenser mounted right beside the furnace exaust takes the...
  11. Blows my mind that in this day and age companies...

    Blows my mind that in this day and age companies are still install larger units than were being replaced.
    It's not rocket science to calculate output and replace a unit with one of equal...
  12. Glad it worked out for you!

    Glad it worked out for you!
  13. Replies
    4
    Views
    382

    A 20 year old refrigerator likely doesn't have...

    A 20 year old refrigerator likely doesn't have much in the way of electronic components. So pretty safe to power off.
    However the compressor will have to work extra hard to bring the...
  14. Replies
    25
    Views
    605

    That's exactly correct. For a quick manual J I'm...

    That's exactly correct. For a quick manual J I'm still going room by room and measuring windows etc.
    But unless I'm going to spend an entire day in a house I have to make some assumptions.........
  15. Replies
    8
    Views
    320

    In fact I keep a bottle in my pants pocket with...

    In fact I keep a bottle in my pants pocket with my service wrench. Service valve caps, Schroeder caps and sometimes I even coat the leaking service valve stem while under vaccum to get this stuff...
  16. Replies
    4
    Views
    657

    I'm totally prepared to spend the money on...

    I'm totally prepared to spend the money on stocking this. What I wanted was an opinion if the selected compressor is a good fit for med/high temp replacement of 1/5 to 1/4 hp compressors in prep...
  17. Replies
    8
    Views
    320

    If the flare is leaking I can guarantee that the...

    If the flare is leaking I can guarantee that the unit wasn't vacuumed properly......
    It would be easy to know there is a leak using a vaccum guage
  18. I'm generally only using one crt. Then my big vac...

    I'm generally only using one crt. Then my big vac hose goes to that.
    I plug my manifold into the opposite service port and run my vac guage on one of those hoses.
    By reading the other end of...
  19. Replies
    7
    Views
    304

    I'd probably rate it at r0.5 per inch then. ...

    I'd probably rate it at r0.5 per inch then. That stuff doesn't do a great job at impeding thermal transfer
  20. Replies
    28
    Views
    873

    I've been using this one for a couple of years...

    I've been using this one for a couple of years now.
    Other than busting a shoulder strap adjusting clip because it got stuck on a ladder it's been rock solid
    ...
  21. Replies
    25
    Views
    605

    If the current unit has worked for years but...

    If the current unit has worked for years but short cycles on the stat I'd go smaller.
    In my entire life I've upsized a system exactly TWICE. Both times were for a tag mahal type Renovation that...
  22. Replies
    20
    Views
    750

    I'm not aware of nest using outdoor sensors. That...

    I'm not aware of nest using outdoor sensors. That could have changed after I swore to never install another one.
    However Honeywell makes the outdoor sensors that work with their thermostats.
    ...
  23. Replies
    7
    Views
    304

    What type of insulation? And how well is it...

    What type of insulation? And how well is it sealed?
  24. Replies
    20
    Views
    750

    I typically install the t6 pro or t6 lyric if you...

    I typically install the t6 pro or t6 lyric if you want wifi.
    And ONLY install them with outdoor sensors.
    Because they are infinitely customizable they can work for almost anything.
  25. I'm wondering if at 14 years old anyone even...

    I'm wondering if at 14 years old anyone even bothered to check the blower motor capacitor.
    If a capacitor gets far enough out of range you can easily lose a couple hundred rpms. And with a little...
  26. honestly I'd take the money you plan on spending...

    honestly I'd take the money you plan on spending on a new unit and spend that on spray foam insulation for the building.
    Because over sizing won't make you happy either
  27. Replies
    20
    Views
    750

    At -20 you would be generating less heat per kwh...

    At -20 you would be generating less heat per kwh than just running resistor heat strips.
    As far as controlling the system a nest on a dual heat setup is my absolute LAST choice.
  28. It's a long shot. But I have seen units that had...

    It's a long shot. But I have seen units that had a plugged split coil behave the same way.
    The problem is until you get the covers off the unit you probably won't even know if it HAS a split...
  29. Replies
    10
    Views
    392

    Honestly if it were me... I'd leave the 2.5 ton...

    Honestly if it were me... I'd leave the 2.5 ton in there and get a whole home dehumidifier.
    Because even a ton and a half unit is going to be too big and not remove enough moisture.
  30. Replies
    10
    Views
    392

    Yeah it's definitely not running much at all....

    Yeah it's definitely not running much at all. However it shouldn't be terrible for the heat exchanger. How is the temperature rise?
    With a 12000btu cooling load it would basically be impossible...
  31. Replies
    10
    Views
    392

    Well so far here in Winnipeg it's been really...

    Well so far here in Winnipeg it's been really mild. 9 minutes isnt a really short cycle at this point.
    Because frankly as far as heat goes if your furnace was sized to exactly meet the...
  32. Replies
    4
    Views
    657

    Stocking compressor on my truck.

    Looking to start carrying a new compressor with me at all times for doing basic 134a prep tables.
    Seems I'm running calls outside the city quite a bit these days and a couple hours of traveling...
  33. Do you understand superheat and sub cooling? Is...

    Do you understand superheat and sub cooling?
    Is the condenser absolutely clean and is the condenser fan moving the correct amount of air?
    Because this sounds like diy to me....
  34. Replies
    21
    Views
    540

    I don't know about anyone else here.... But the...

    I don't know about anyone else here.... But the first thing I do on a refrigeration call is look at the glass if fans and comp are running. If the glass is clear, I shut the system down for a few...
  35. Replies
    17
    Views
    467

    My experience with this 448 retrofit is that you...

    My experience with this 448 retrofit is that you need to charge lower than the 22 was.
    Sometimes these systems like a few bubbles running in the sight glass. Try backing the charge off a bit
  36. Where I am a basic geo heat pump assembly costs...

    Where I am a basic geo heat pump assembly costs pretty much EXACTLY the same as a complete air source unit.
    The difference really is in the digging and and loop. Plus here if it's a closed loop...
  37. The blower going out and causing a high limit...

    The blower going out and causing a high limit trip could have made a crack in the heat exchanger.
    That's why as noted above you should have someone inspect the unit
  38. I'm not absolutely certain. But I don't think...

    I'm not absolutely certain. But I don't think the carrier is running a reciprocating compressor.
    It's likely the 5speed variable drive system. And either a scroll or rotary compressor.
    To...
  39. Well you could build what you are looking for out...

    Well you could build what you are looking for out of a commercial style water cooled condenser.
    Set the condenser outside by the well, hook it up to a compressor and evaporator inside the house....
  40. Replies
    8
    Views
    491

    Yeah it's crazy that so many people don't think...

    Yeah it's crazy that so many people don't think they work or are worth the investment.
    I'm in manitoba Canada. We have a ton of -40 here in the winter. And yes after about 12 degrees heat pumps...
  41. I'm sure if you look on the contractor map on...

    I'm sure if you look on the contractor map on this site you'll find someone willing to service the unit.
    Unfortunately without seeing it in person this is the only advice I can give
  42. Replies
    15
    Views
    461

    I'm sure if you get into the set up program on...

    I'm sure if you get into the set up program on the stat you can program emergency heat to NOT run the fan.
    The furnace should automatically run the fan on either a timer or temperature stat to...
  43. Replies
    8
    Views
    303

    So this is a make table? Likely 134a. If I'm...

    So this is a make table? Likely 134a. If I'm seeing 210 high side pressure on a cap tube 134a system and it's not 130degrees ambient I'm looking at the whole rest of the system.
    The no low side...
  44. Has the heat strips always come on like this? Or...

    Has the heat strips always come on like this? Or is this a new symptom?
    Because if they've always come on like this it's a programming issue likely.
    There should be an aux setback setting ...
  45. Replies
    7
    Views
    254

    Yeah works fine with both. The mo49 has some...

    Yeah works fine with both. The mo49 has some hydrocarbons in it to make it work with mineral oil. And it works very well with poe as well.
    The other trick I've wound up using is adding a little...
  46. I'm thinking ecobee isn't going to support...

    I'm thinking ecobee isn't going to support everything you have going on there.
    Not that there is anything wrong with ecobee.
    But both Honeywell and White Roger's/sensi will have wifi stats to...
  47. Replies
    7
    Views
    254

    MO49 r437a is a great drop in replacement for...

    MO49 r437a is a great drop in replacement for r12 systems if the compressor isn't charged with poe oil.
    I've even started using it in place of 134a on some problematic cap tube systems.
    But...
  48. Replies
    4
    Views
    383

    Winnipeg here. Minus 40 on the regular. I...

    Winnipeg here. Minus 40 on the regular.
    I love the Milwaukee jacket. I also tend to pop the inspection cover off the hx alot in the real cold weather. That heat coming off the hx really helps...
  49. Yeah 50 is above freezing. And that's the parts...

    Yeah 50 is above freezing. And that's the parts list to convert. But as bob boan said the coils and cabinets tend to be larger.
    The other thing to note is that all those parts need to match the...
  50. One of my favorite lines is "We can do anything...

    One of my favorite lines is "We can do anything you like. But do really want to pay that much?"
    A regularly split air conditioner certainly can be converted to a heat pump.
    But just for the...
Results 1 to 50 of 349
Page 1 of 7 1 2 3 4