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  1. You have a single stage heat pump with aux...

    You have a single stage heat pump with aux electric heat.

    Common to have W2 and and E jumpered together.
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    You can set the CPH to 1. It won't hurt the...

    You can set the CPH to 1. It won't hurt the compressor, or any other part of the system.
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    Not if there was even just one person in the...

    Not if there was even just one person in the house it wouldn't. At 2000 CFM, that .0001 temp delta would only come out to .22 BTUs an hour.
  4. Telling him what the fans are called isn't...

    Telling him what the fans are called isn't anything DIY. Saying to use line voltage thermostats might be.

    Telling him how to wire it up would be.

    If you believe a thread to be DIY, report it....
  5. PETA doesn't matter. Look up Chin farming in...

    PETA doesn't matter.

    Look up Chin farming in the USA. A few states may require a license. But Chins are raised in ever state. Some as pets, other for fur.
  6. So you know of laws banning someone from raising...

    So you know of laws banning someone from raising Chinchillas in the USA. That need to be addressed before telling someone that his idea for using duct boosters to aid his portables A/Cs will work.
    ...
  7. Will probably work.

    Will probably work.
  8. He's cooling it so the Chinchillas don't die from...

    He's cooling it so the Chinchillas don't die from heat strokes.
  9. So you want two 4" duct boosters and two line...

    So you want two 4" duct boosters and two line voltage thermostat.
  10. Go to that other forum. Remind who ever over...

    Go to that other forum. Remind who ever over there that said to have them put in new refrigerant. That R410A itself isn't hydroscopic. And can easily have moisture filtered out of it. And then ask...
  11. Don't know why the refrigerant couldn't be used...

    Don't know why the refrigerant couldn't be used again. Since its not the refrigerant that is hydroscopic.

    They're relying on the filter driers to get any moisture out that the vacuum may not have...
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    444 sq ft per ton is way too much. unless your...

    444 sq ft per ton is way too much. unless your walls are mostly windows. Or no insulation in them.

    Might need close to 2 tons second floor, and 1.5 for first floor.
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    High humidity from run times being to short.

    High humidity from run times being to short.
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    Which ever one they wired up to control the unit.

    Which ever one they wired up to control the unit.
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    Wow. 5.5 tons for 2000 sq ft. Must get a heck of...

    Wow. 5.5 tons for 2000 sq ft. Must get a heck of a lot hotter in RI than I thought.

    How many sq ft first, how many second floor?
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    Okay, so is one unit for the area above grade,...

    Okay, so is one unit for the area above grade, and the other just for the basement?
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    Okay, you have 2 return grilles sized for 4 tons...

    Okay, you have 2 return grilles sized for 4 tons total. What size ducts are ran to them?
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    6 Months old. May not be charged exactly correct....

    6 Months old. May not be charged exactly correct. Easy to be slightly off when done in winter. Call the installing company to check it out.
  19. Could be they wired it incorrectly, and the...

    Could be they wired it incorrectly, and the furnace is running in low cooling stage, which won't provide enough air flow.
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    Its common to pump larger split systems down to...

    Its common to pump larger split systems down to what the condenser can safely hold, then recover what couldn't be pumped back.

    A 60 ton 4 stage condenser can hold a large amount of charge, but...
  21. A restriction further down stream wouldn't cause...

    A restriction further down stream wouldn't cause the liquid line temp to be cooler than the outdoor air temp.

    It would only cause the liquid line temp to be the same temp as the ambient air.
  22. This thread has out lasted its usefulness. ...

    This thread has out lasted its usefulness.

    Thread closed.
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    Sorry, we're not a DIY site. Thread closed.

    Sorry, we're not a DIY site.

    Thread closed.
  24. Insulated sheet metal duct is better.

    Insulated sheet metal duct is better.
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    Please put your email address in your profile....

    Please put your email address in your profile. They are not allowed in post. And are removed from post.

    Thank you.
  26. Afraid that is more DIY aid then the site permits...

    Afraid that is more DIY aid then the site permits us to give.
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    So do/did one of those systems do the second...

    So do/did one of those systems do the second floor?
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    After its replaced, it should be touched up with...

    After its replaced, it should be touched up with paint to help prevent rusting out. The heat of the torch will damage the factory paint.

    How long, varies with the brand/model of the unit, some are...
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    That temp difference is fine. Specially when you...

    That temp difference is fine. Specially when you allow for temp robe/meter inaccuracy.
  30. Thats it.

    Thats it.
  31. The pressure switch doesn't fail because of it....

    The pressure switch doesn't fail because of it. The pressure switch does its job, and remains open. The popped crimp ring allows the inducer to pull air easier, so the pressure the switch senses is...
  32. Good chance it will increase the longevity of the...

    Good chance it will increase the longevity of the equipment.
  33. Thread: Locking Caps

    by beenthere
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    Prices are not allowed.

    Prices are not allowed.
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    Where does it get its combustion air from?

    Where does it get its combustion air from?
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    Is the water heater in a separate closet/utility...

    Is the water heater in a separate closet/utility room.
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    Might be using triac relays. They can sometimes...

    Might be using triac relays. They can sometimes not let full voltage through.
  37. Doesn't mean its the compressor itself that is...

    Doesn't mean its the compressor itself that is leaking.
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    Add a return to the attic.

    Add a return to the attic.
  39. Have the electrician disconnect all the wires...

    Have the electrician disconnect all the wires from the lights/lamps but one. See if the GFCI still trips. If not, then connect another, If it trips then, the wiring to the light, is suspect.
  40. Even at only 2 tons. You get a lot of comfort...

    Even at only 2 tons. You get a lot of comfort benefits from 2 stage cooling. If 2 tons is all your house needs, then it will run in first stage mostly. Just like a larger house that needs 3 tons...
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    Call another contractor. They might top off your...

    Call another contractor. They might top off your system.

    The way it often works. You top off a system, it last for a month or two. And then the customer wants it topped off again to hold out till...
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    There is a good chance that the blower can be set...

    There is a good chance that the blower can be set to run slightly slower. To do a better job of removing moisture. You'll need your contractor to do that for you.

    With the last numbers you posted....
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    At 72, my place runs between 46 and 48%RH. 78...

    At 72, my place runs between 46 and 48%RH.

    78 at 30%RH, is like 72 at 36.6%RH.

    I don't live in a low RH state.
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    Usually 72.

    Usually 72.
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    78? Not in my place.

    78? Not in my place.
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    Take pictures of the bubbles and then send them...

    Take pictures of the bubbles and then send them to your landlord, and the builder.
  47. The blower can be set slower then 1000 CFM. ...

    The blower can be set slower then 1000 CFM.

    The question is. How loud will it be in second stage heat? Are they putting in the same size furnace as you had, or even slightly larger?

    40,000 BTU...
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    Thermostat set to too low of a temp. On cooler...

    Thermostat set to too low of a temp. On cooler outdoor temp days they probably run at an even lower pressure and then lock out.
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    Sorry, we're not a DIY site. Thread closed.

    Sorry, we're not a DIY site.

    Thread closed.
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    Since the electric is most likely either...

    Since the electric is most likely either generated by burning Natural gas, or Coal. Its not a stepping stone for clean anything.
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