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  1. Replies
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    Hi All. So I'm reviving this thread to let...

    Hi All. So I'm reviving this thread to let everyone know, that after 5 summers, I finally fixed the loud thumping sound my compressor made when shutting off. The sound it made was exactly like the...
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    Thanks a lot. This is very helpful!

    Thanks a lot. This is very helpful!
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    What to expect from A/C tuneup

    Our compressor is now a year old and the HVAC company who installed it called to see if we wanted to get the annual maintenance on it. Can you guys tell me what to expect from an annual maintenance...
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    :LOL:

    :LOL:
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    Agreed. Just had a NATE certified tech out...

    Agreed.

    Just had a NATE certified tech out today. The pressures were set incorrectly at 3.0wc on high fire and 2.2wc on low fire, so he corrected per the manual.

    Now, with my blower on...
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    Thanks buddy. Sorry I didn't catch the...

    Thanks buddy. Sorry I didn't catch the sarcasm... I don't know an inducer from a hole in the ground.
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    You're right. I'm beginning to question the...

    You're right. I'm beginning to question the initial pressure settings at this point. I have a different company coming out this morning. Good thing I have the money to pay for all of these service...
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    Good question. I'll call and ask about the...

    Good question. I'll call and ask about the inducer speed.

    Thanks for all the info.
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    The contractor just left. He adjusted the gas...

    The contractor just left. He adjusted the gas pressure on low fire and now I'm at 40 degrees temp rise. He said that as long as I'm within the correct range on the temp rise, then it is fine to...
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    Gas pressure on 1st stage

    I have a RGRL 90K btu furnace (2 stage, natural gas) and currently the temp rise on low fire is only 29 degrees F (range is 25-55 per the nameplate on the furnace). This is with the blower set to...
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    Sold. Thanks.

    Sold. Thanks.
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    Reducing price to $20... includes shipping.

    Reducing price to $20... includes shipping.
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    No, I haven't gotten around to it yet. My wife...

    No, I haven't gotten around to it yet. My wife has a cold and has been snoring, so I leave the blower on to create a little white noise. :LOL:

    I'll experiment with it next week.
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    Thanks, BT. You certainly know your ****. :yes:

    Thanks, BT. You certainly know your ****. :yes:
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    Thanks. Does that 559 hold even if it's on the...

    Thanks. Does that 559 hold even if it's on the low blower speed?
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    My furnace is the Rheem RGRL-90. Can't find...

    My furnace is the Rheem RGRL-90. Can't find anywhere in the documentation how many watts it uses... I know it depends on a lot of things. The fan setting is on low, where I'm at about 1035 cfm...
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    I don't have an electric water heater, but how...

    I don't have an electric water heater, but how much would a typical side by side use an hour do you think?
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    .. edit

    .. edit
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    Of the 4 different contractors I met with before...

    Of the 4 different contractors I met with before my install, all used rules of thumb, no man J. :rolleyes: Not being in the business, I had no idea there was such a thing as manual J until after my...
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    Thanks. I'll give it a try tonight without the...

    Thanks. I'll give it a try tonight without the blower on and see what the difference is.
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    1 kWh per hour just running fan

    Is it possible that just running the fan on my furnace is using 1 kWh per hour? Last night before I went to bed, I checked the meter and let the fan run all night. To my surprise, 8 hours later...
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    My installers left the default black-cool,...

    My installers left the default black-cool, blue-heat & yellow fan. Needless to say, It has been changed since. My installer didn't set up the 2 stage furnace properly either.... they set my...
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    http://www.iaqsource.com/category.php/honeywell-fc...

    http://www.iaqsource.com/category.php/honeywell-fc100a1029-filters---16-x-25-x-4-38/?category=893

    I use the "unbranded alternative" MERV 8 and am very pleased.
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    Thanks for the good info, guys. I like the...

    Thanks for the good info, guys. I like the plastic garbage can lid with a brick idea! :yes:
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    Condenser Cover

    Fall is quickly approaching and I'm wondering if I should buy a custom cover for my outdoor condenser? Is it better to cover or not to cover? We get quite a bit of snow, so my main concern would be...
  26. put a trap on the condensate line from the coil...

    put a trap on the condensate line from the coil (blow through) and the problem has been resolved.
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    0 to 1in w.c. would be ideal. I had a hard time...

    0 to 1in w.c. would be ideal. I had a hard time finding one for a low price. I actually have a 0 to .5 and this 0 to 2 and they both work fine. The 0 to 2 gives you increments of .05.
  28. thanks badbill!

    thanks badbill!
  29. Replies
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    You can also use a magnehelic pressure guage and...

    You can also use a magnehelic pressure guage and measure the positive and negative separately. Google static probe and you'll find places that sell the end you stick into the duct.

    By the way,...
  30. Condensation on suction line inside cased coil

    The suction line going into the cased coil is completely insulated. One thing I'm noticing is that there must be some pretty aggressive condensation on the suction line within the coil box as a very...
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    Dwyer 2002C Magnehelic Pressure Guage

    Looking to sell a used Dwyer 2002C Magnehelic Pressure Guage (pictured below). Works great.

    Product Specs

    * Range - 0-2.0 Inches of Water
    * Pressure - 15 PSIG

    I'll sell for $30...
  32. Replies
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    Just wanted to update this thread. My 5" MERV 8...

    Just wanted to update this thread. My 5" MERV 8 generic filters were delivered today. I am pleased to say that my PD went down .11 from the MERV 12 Honeywell filter I had in previously! Now, the...
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    Good point!

    Good point!
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    Lots of incompetent techs out there is my...

    Lots of incompetent techs out there is my experience. I'm sure there are some really skilled ones, but I've yet to run into one.
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    Thanks for your responses guys. Are there traps...

    Thanks for your responses guys. Are there traps that don't need to be primed during heat season I could have my contractor install? Another thing I thought of is capping off the coil condensate...
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    Thanks for the feedback beenthere. So, lack of...

    Thanks for the feedback beenthere. So, lack of trap is ok? I'll ask them about the running of the pvc under the water heater's burner cover during the fall maintenance.
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    Condensate Drain Line - pic

    From the attached picture, does the condensate line from the cased coil look okay? I know it's preferable to have a trap, but since it's on blow through, will this cause any issues (other than the...
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    Lineset vibration

    The lineset for my condenser is secured to a floor joist under our bedroom floor and it creates an annoying pulsating/vibration. Anyone have any ideas about ways to reduce this effect?

    Thanks.
  39. Replies
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    Thanks. I think you're right. In fact, my guess...

    Thanks. I think you're right. In fact, my guess is if the filter opening was made larger, it would probably solve a lot on the return side. From what I've heard, the static in the return should...
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    Point taken. And, I never throw things in the...

    Point taken. And, I never throw things in the tech's face about stuff I think I know. I always give them the benefit of the doubt and hold my tongue until after they leave... then, I ***** to my...
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    Yes, the return after filter was taken before the...

    Yes, the return after filter was taken before the furnace (in blower compartment).

    Understood about the .83 ESP, but it still doesn't explain to me why I'm getting a pd of .25 across the wet coil...
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    LOL. I know the techs who have come to my house...

    LOL. I know the techs who have come to my house recently probably curse the internet when they leave. I think most like it better when the customer is ignorant, or at least knows less than they do....
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    I totally agree, udarrell! I'm finding out the...

    I totally agree, udarrell! I'm finding out the hard way that most of the techs in the field (at least the ones in my area) are not nearly as skilled as the ones I'm coming across on the internet....
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    Ah, I'm glad you asked about the ESP. Here's the...

    Ah, I'm glad you asked about the ESP. Here's the breakdown:

    Return Plenum: -.10
    Return after filter (with no filter): -.20 - I think this is due to the small opening into the furnace (only...
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    Yes, it's at the return grill. I have a 5 ton...

    Yes, it's at the return grill. I have a 5 ton (3/4 HP), Rheem RGRL 90K 2 stage BTU furnace, with a 3 ton single stage A/C unit (RAPL) and a 4 ton coil (RCFL). I have my cooling speed set to...
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    I'm currently using a MERV 12 Honeywell 5", 20x20...

    I'm currently using a MERV 12 Honeywell 5", 20x20 media filter, but I've seen generic MERV 8, 20x20, 5" media filters that are about 1/2 the price of the Honeywell. I'm getting about a .27 pd from...
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    Thanks. My profile has been updated with my...

    Thanks. My profile has been updated with my email address.
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    Interesting. Thanks for the answer... makes...

    Interesting. Thanks for the answer... makes sense. Do you order the General Air media filter online? If so, where?

    Thanks!
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    5" Merv 8 vs. 5" Merv 12

    How much pd difference do you think I'd see using a 5" Merv 8 vs. a 5" Merv 12?
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    thanks.

    thanks.
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