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Type: Posts; User: Restaurant mech

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  1. Why not just use an a19 mechanical stat with the...

    Why not just use an a19 mechanical stat with the bulb outside?
    Figure out where you want the heat pump cut out set at.
    Run the heat pump off normally closed terminal. And furnace off the...
  2. It's very likely that the furnace you are seeing...

    It's very likely that the furnace you are seeing is an air handler for the central air system.
    If it has a furnace as well then that's a bonus as you have backup heat in case something goes wrong...
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    Have a temperature rise and a combustion test. If...

    Have a temperature rise and a combustion test. If your old unit was 80000 btu your newer 90000 is likely waaaay oversized.
    The btu rating on a furnace is INPUT btu.
    So if an older 100000 btu...
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    Yeah it's crazy. Especially if you use the...

    Yeah it's crazy. Especially if you use the celcius scale. Our winter low is -42 celcius. And our summer high is +42 celcius.


    Sent from my SM-G965W using Tapatalk
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    Well.... we do get 105 degree days. So for a few...

    Well.... we do get 105 degree days. So for a few weeks a year the cooling is honestly needed. Especially with the long sunlight days there isn't any relief at night.
    But yeah I tried really hard...
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    Being in manitoba Canada I know 3 tons is a...

    Being in manitoba Canada I know 3 tons is a little much for cooling this place.
    However in order to get a matched package as he needs around 20kw of electric heat we had to go with a 3 ton heat...
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    What kills me is this is my best friend's house....

    What kills me is this is my best friend's house. Other than his wife choosing the payne over a york based on looks I got to install as I please.( of course they let me add whatever I wanted. They...
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    Oh it's running while the interior is being...

    Oh it's running while the interior is being finished.
    However my policy is I don't install a unit unless it also gets a 4 inch pleated filter.
    So no worries about taping dust getting in...
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    The miracle of closed cell foam

    3400 sq ft house, 4 inch foam walls, 2 inch foam ceiling with r60 cellulose on top of that.
    3 ton payne builders model heat pump with matching air handler. (Heat strips aren't installed yet)
    ...
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    In theory you can mount the safety switches...

    In theory you can mount the safety switches anywhere. Just depends on how much extra wiring you want to do.

    I haven't had any issues with installing them on an access tee at the service...
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    In the end we replaced a compressor under...

    In the end we replaced a compressor under warranty.
    These embraco compressors aren't sold by my local embraco dealer.
    They are only available from the importer out on the coast.
    So a 3 day...
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    This is a 24 cu foot reach in freezer. Restaurant...

    This is a 24 cu foot reach in freezer. Restaurant equipment.
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    I tend to cut the pvc and install an access tee...

    I tend to cut the pvc and install an access tee with a removable plug.
    https://uploads.tapatalk-cdn.com/20201016/a60f99a29f69daa72baa43bc7ca446b9.jpg

    Sent from my SM-G965W using Tapatalk
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    As posted above.... the fan itself wont be making...

    As posted above.... the fan itself wont be making the noise. It's the bearings in the motor.
    The thing with these carrier inducers is that if you buy the whole assembly it tends to be expensive. ...
  15. The original tank from 1975 is still running in...

    The original tank from 1975 is still running in my dad's basement.
    Change the anode once in a while and a tank can last almost forever.
  16. The seer rating won't have much of an effect of...

    The seer rating won't have much of an effect of total cooling output. The btu rating is what does it.
    The real correct way is to do a load calc with an air leakage test as mentioned above.
    You...
  17. When was the foam applied? If you've run an...

    When was the foam applied? If you've run an entire summer with the foam in place and had no humidity issues sticking with the same size will likely be fine.
    The other thing to take note of is...
  18. Seems they've all been problematic for us....

    Seems they've all been problematic for us. Especially the high efficiency tanks.
    With Rheem I've noticed that the thermostats are proprietary and expensive.
    With ao smith the heat exchangers...
  19. I'm the guy firmly in the #1 camp. However did...

    I'm the guy firmly in the #1 camp. However did anyone inspect your heat exchanger? If the heat exchanger is in good shape and the system is safe and keeps you comfortable I'd lean towards keeping it....
  20. Ahh dixell. The controls I both love and hate at...

    Ahh dixell. The controls I both love and hate at the same time.
    Someone wiring in a relay for the fans seems odd. They don't draw much current.
    I usually add a contactor for the compressor...
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    I've honestly never seen that. It could be...

    I've honestly never seen that. It could be because they like slugging the compressor with liquid lol.
    Are you sure it's not a pressure regulator? I've seen those on old reach in hussman units
  22. Well I hate to be that guy.... have you CONFIRMED...

    Well I hate to be that guy.... have you CONFIRMED that motor rpm and fan blades are in fact what these units call for?
    Because the only thing I can think of is that you may possibly have 800rpm...
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    New air.

    anyone ever dealt with these units? Pretty typical chinese stuff. However the freezer I'm working on has an embraco compressor that is apparently NOT for north American equipment.
    That means I...
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    That really depends on the situation and how well...

    That really depends on the situation and how well the customer understands risk.
    If I've got to stand behind the repair and warranty it, it gets a new fan no question.
    If it's one of my...
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    back in tradeschool for becoming a heavy duty...

    back in tradeschool for becoming a heavy duty mechanic I'll never forget what the teacher told us about electric shock.
    It's not the 100000volts that kills the mechanic checking the ignition coil....
  26. Lack of oxygen. Call a professional before you...

    Lack of oxygen. Call a professional before you wind up in a funeral home
  27. winter is about to set in here in the Great white...

    winter is about to set in here in the Great white north. I'd love to work somewhere that the air doesn't hurt my face
  28. Thread: FML

    by Restaurant mech
    Replies
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    2,407

    Yeah I've done it. You don't need a lathe. Just...

    Yeah I've done it. You don't need a lathe. Just get the shaft turning and use a nice file on it after brazing.
    Even done it on engine crank shafts .
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    My big question is..... which way do you point...

    My big question is..... which way do you point the arrows on a bi flow filter dryer?:cheers:
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    Milwaukee makes battery powered heated jackets. ...

    Milwaukee makes battery powered heated jackets. I love mine come winter
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    They are still available up here. Carrier had...

    They are still available up here. Carrier had them in the buyers guide last year
  32. Yeah that's neat. I do the same with my cordless...

    Yeah that's neat. I do the same with my cordless rotary hammer. It's pretty rare I even use a puller anymore. Only when I'm changing bearings on a big blower assembly I don't want to remove.
  33. If the hole was actually brazed shut the bazing...

    If the hole was actually brazed shut the bazing will in fact be stronger than the original pipe in most cases.
    If what you currently have for equipment hasn't kept you comfortable then by all...
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    you want an efficient heater? Get a heat pump....

    you want an efficient heater? Get a heat pump. Unfortunately they are expensive
  35. We did much the same thing out on the farm when I...

    We did much the same thing out on the farm when I was a kid before we could afford to refrigerate the space.
    Unfortunately with an hrv it's not likely to work all that well due to the fact it's...
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    It will work that way..... just not very well....

    It will work that way..... just not very well. Return airflow can work in many different ways. Like in a house trailer or construction trailer. The Return is under cut doors and pocket venting...
  37. For longer outdoor runs you can get thicker pipe...

    For longer outdoor runs you can get thicker pipe insulation. And insulate BOTH sets of pipe. If done properly it will work.
  38. As rider says you need to recover and weigh the...

    As rider says you need to recover and weigh the charge. I will say that every time i could hear noise from the lines on a mini split, the charge was on fact low. Although lack of noise doesn't mean...
  39. As others have said it's all about install and...

    As others have said it's all about install and maintenance. Was at a small downtown corner store today. Been servicing them since march. The call in march was a locked rotor on the compressor. The...
  40. Ice machines are fun to fix at the best of times....

    Ice machines are fun to fix at the best of times. And as they get older they become even more fun.
    The theory of operation on them generally relates to refrigerant pressure. You can tell alot...
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    You certainly aren't crazy. I work on a lot of...

    You certainly aren't crazy. I work on a lot of old bard units and have had the same problem.
    Usually changing the contactor solves it. In fact one time I disassembled the old contactor and found...
  42. Unfortunately there is no such thing as a free...

    Unfortunately there is no such thing as a free lunch. It takes a certain amount of energy to supply heat or cooling for a heat load.
    For energy savings look to lower the load through insulation....
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    if you are in Winnipeg Canada I could keep you...

    if you are in Winnipeg Canada I could keep you busy at a good wage
  44. The bigger question is are you consistently...

    The bigger question is are you consistently comfortable?
    Because comfort is the real reason for A properly installed 2 stage system.
    There is likely NEVER to be a financial payback on higher...
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    I don't have experience with this particular...

    I don't have experience with this particular system. However I HAVE somewhat solved these problems by adjusting fan speed in oversized systems.
    It's certainly worth a shot before spending even...
  46. With a rollout trip I always check inducer, heat...

    With a rollout trip I always check inducer, heat exchanger and gas pressure.
    I've s I also almost always replace the rollout switch as well
  47. Well it's a longshot but safety wise a big dust...

    Well it's a longshot but safety wise a big dust build up on the heat exchanger CAN cause a fire ( this is the specific reason where I am we can NEVER have a take off directly on top of the plenum)
    ...
  48. The filter isn't there to clean the air for you....

    The filter isn't there to clean the air for you. It's only purpose is to protect the equipment and duct system.
    Does the filter cut down circulating dust? Yes it does.
    But air quality was...
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    Yeah nu calgon foaming evaporator cleaner would...

    Yeah nu calgon foaming evaporator cleaner would likely cure it.
  50. First thing I'd be doing is static pressure...

    First thing I'd be doing is static pressure reading at the inside unit. If that checks out I'd be looking at speed settings on the fan. If all of those checks turn out fine I'd see if the unit will...
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