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  1. Pool room units are good for these applications....

    Pool room units are good for these applications. In fact some of the manufacturers have begun marketing to such businesses.
    High end units like the Modine Atherion would work as well.
    What...
  2. Thread: Refrigeration

    by rider77
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    I have no idea what problem your attempting to...

    I have no idea what problem your attempting to solve, or create, with that idea.
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    I wouldn’t waist the money. Thermostat can easily...

    I wouldn’t waist the money. Thermostat can easily be tested without replacement.
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    The G5 doesn’t like liquid, and doesn’t like...

    The G5 doesn’t like liquid, and doesn’t like summer temperatures without an auxiliary condenser. I like a bucket of ice myself.
    Had several G5 machines at a few companies I’ve worked for. I like...
  5. There is no spec pressure. If the system has a...

    There is no spec pressure.
    If the system has a leak, why isn’t it getting fixed?
    Overcharging can cause other problems, compressor failure being one.
    None of your post makes sense.
  6. Thread: What size a/c?

    by rider77
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    110

    Run a manual J and see.

    Run a manual J and see.
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    This isn’t likely a difficult problem to...

    This isn’t likely a difficult problem to diagnose. Unfortunately you’ve asked it on a site that doesn’t provide DIY instruction. So we are extremely limited to what we can tell you to do.
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    What does your service technician suggest to fix...

    What does your service technician suggest to fix the problem?
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    159

    The temperature difference is due to different...

    The temperature difference is due to different heat loads on the first and second floor.
    With a single unzoned unit there will always be a difference. A good contractor may be able to help somewhat...
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    Yeah, that’s very accurate. The first time you...

    Yeah, that’s very accurate. The first time you find a dead compressor at 5 PM, then find the only supply house with a replacement is an hour plus drive. So you go get it, come back, and get to work....
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    It’s my general opinion, that a refrigeration...

    It’s my general opinion, that a refrigeration tech will find it easier to transition to hvac service vs hvac service going to refrigeration. They seem to have a better grasp on wiring and working...
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    There is no such chart. Minis are not charged...

    There is no such chart.
    Minis are not charged via pressures anyway.
  13. I’ve made a lot of paperweights out of those...

    I’ve made a lot of paperweights out of those goofy little things.
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    Post some photos. Or provide links to photo...

    Post some photos. Or provide links to photo sharing sites. I’ve never heard or seen such an installation.
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    You said your original systems were replaced with...

    You said your original systems were replaced with larger systems. Why was this?
  16. I would hope, but doubt it. They will probably...

    I would hope, but doubt it.
    They will probably just lower fan speed.
  17. The settings and CFM are based on an ideal...

    The settings and CFM are based on an ideal install. Both should be checked and verified during commissioning with instrumentation.
  18. Nest induced service calls=the reason I’ll be...

    Nest induced service calls=the reason I’ll be able to pay for my kids college education. And probably be able to buy a couple new cars by the time they are all added up.
    Those things are great for...
  19. Mitsubishi’s technical help line is second to...

    Mitsubishi’s technical help line is second to none. And they call you back quickly.
    I’d suggest your tech calls them.
  20. Loud duct means the static pressure is likely...

    Loud duct means the static pressure is likely high. Which means your not getting the correct amount of airflow, which means your not getting the full capacity or efficiency of the unit you paid so...
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    The 20” is definitely small, needs to be bigger. ...

    The 20” is definitely small, needs to be bigger.
    Pictures would help understand your setup better.
    You must have a substantially sized house with equipment that big.
  22. Ask for the AHRI match number.

    Ask for the AHRI match number.
  23. Replies
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    Iím not sure what point your trying to make. We...

    Iím not sure what point your trying to make.
    We are one of the most expensive companies around. And we have been busier then ever.
    And we donít push new equipment. So a service call is never...
  24. What does your service technician suggest to fix...

    What does your service technician suggest to fix the issue?
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    Most “lemons” as they are referred to are...

    Most “lemons” as they are referred to are actually completely ok units with install errors.
    So you either have something installed wrong or there’s a problem in the condensate disposal system.
    I...
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    810839

    810839
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    Ah ok. Only reason I asked is my area in the...

    Ah ok. Only reason I asked is my area in the northeast is having lots of natural gas pipeline work. We had a lot of areas without natural gas supplies. And my father in law is in charge of a lot of...
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    VRF has water source options, I’ve personally...

    VRF has water source options, I’ve personally worked with Samsung and LG.
    I’m not aware of single head water source minisplit options.
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    What area is this in?

    What area is this in?
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    There is nothing I know of that does what you...

    There is nothing I know of that does what you want to do.
  31. Cut your losses, invest in something new. Post...

    Cut your losses, invest in something new.
    Post your load calculation that verifies you need 5 tons of capacity.
    I know it sounds like we are stuck on sizing, but it gets burned in your brain when...
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    The ceiling cassettes, IMO, are vastly easier as...

    The ceiling cassettes, IMO, are vastly easier as far as servicing and maintenance go.
    The center comes out and gives you free access to everything. Not so with a wall mount.
    IMO, they vary with...
  33. If it’s just a standard mechanical thermostat...

    If it’s just a standard mechanical thermostat then that’s probably not the problem.
  34. Could be a thermostat setting, or it could be a...

    Could be a thermostat setting, or it could be a problem beginning to show up with the outdoor unit.
    Its difficult to say without being there, however it would be an easy test.
    Unfortunately we...
  35. Mitsubishi and Samsung are my preferred. I have...

    Mitsubishi and Samsung are my preferred. I have some buildings with LG and I haven’t cared for the upkeep. Also, all my LG buildings have branch boxes that are not serviceable, they are encased in...
  36. Probably just need 2 very small heads. Not much...

    Probably just need 2 very small heads. Not much capacity concern in a basement.
    What did the manual J come out to?
  37. You would need more then one wall mount, or...

    You would need more then one wall mount, or ceiling cassette, or a single ducted unit to maintain even temperature through the space.
    Oddly enough Iím dealing with a similar commercial space thatís...
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    That’s not a gauge. It’s an actuator. Your...

    That’s not a gauge. It’s an actuator.
    Your contractor will have to source the missing parts.
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    It’s to release static pressure on the supply...

    It’s to release static pressure on the supply side.
    The damper will be inside the duct
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    You’ll want to contact your contractor for models...

    You’ll want to contact your contractor for models and pricing. The internet is not a place to source your new equipment.
    Site rules say we can’t discuss pricing here. For good measure, it’s much...
  41. Replies
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    Yup, that’s a bypass damper actuator. Are you...

    Yup, that’s a bypass damper actuator. Are you certain there’s no damper? That’s a major problem if it doesn’t.
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    Please note the bright red banner at the top of...

    Please note the bright red banner at the top of the page. This site doesn’t give out diy instruction per the rules.
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    What does your service technician suggest? Can...

    What does your service technician suggest?
    Can be very unsafe shoving the contactor in manually. I wouldn’t suggest it.
  44. Judging by the surface it’s laying on is this for...

    Judging by the surface it’s laying on is this for a gas supply for a grill?
  45. Nothing that can’t be made with tubing benders.

    Nothing that can’t be made with tubing benders.
  46. Replies
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    Unfortunately purchasing equipment like that...

    Unfortunately purchasing equipment like that means your responsible for the warranty. Reimbursement is between you and the internet supplier you bought it from.
    At this point it’s mandatory to...
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    It’s a brand new unit. Shouldn’t be causing any...

    It’s a brand new unit. Shouldn’t be causing any bills to be sent your way.
    Did you buy this unit yourself? Did you install it yourself?
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    No scale and screwing around with the charge via...

    No scale and screwing around with the charge via pressures only?
    Time to pull it, weigh it and start over.
    Charge is not determined by pressures only.
  49. There will be no refrigerant left after the unit...

    There will be no refrigerant left after the unit is reclaimed.
  50. As long as the lineset is of the correct size, is...

    As long as the lineset is of the correct size, is soldered together properly and isn’t damaged, it can be reused.
    Refrigerant boils at a very low temperature, specifically -55*F for R-410A and...
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