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  1. Thread: Zoning

    by superfittertech
    Replies
    4
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    154

    The pneumatics one is an Arzel. Yes there's round...

    The pneumatics one is an Arzel. Yes there's round zone dampers. You wouldn't daisy chain them, you would wire them in parallel. You'll have the correct sized transformer to handle all of the dampers....
  2. If after cleaning the blower wheel then if you...

    If after cleaning the blower wheel then if you decide to change the motor pulley you want to go larger to increase rpms and airflow, not smaller
  3. another frequent problem is on new coils residual...

    another frequent problem is on new coils residual oil left behind from the process of making the coils. The oil prevents condensate from clinging to the fins and it just falls off. I would go into...
  4. if the bathroom vent is going to the central hvac...

    if the bathroom vent is going to the central hvac system then more than likely it is a supply. Especially in the bathroom, but it's hard to say. We're not there. What's wrong with the central a/c...
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    It can be done by a competent professional, but...

    It can be done by a competent professional, but you're in over your head and this is not a DIY site
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    211

    the newer GMVM97 has a 1/2 HP motor in their...

    the newer GMVM97 has a 1/2 HP motor in their smaller furnaces. Even though both are higher horsepower than your old one they'll likely use less power as they're ECM motors. They're of higher...
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    a non issue

    a non issue
  8. Replies
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    1,278

    conduit looks to be galvanized= no painting...

    conduit looks to be galvanized= no painting required and coil under positive pressure, so again really no trap required.
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    had similar problem. 20 ton Condensing unit on...

    had similar problem. 20 ton Condensing unit on the 6th floor roof. Up 85' then lines went over edge of roof and another 25' across the roof lower than the edge of the roof. After shutting down...
  10. x3x3x3 can't stand ductboard

    x3x3x3 can't stand ductboard
  11. Replies
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    484

    80,000 btu 96% furnace and 3 ton a/c on a 1950 sq...

    80,000 btu 96% furnace and 3 ton a/c on a 1950 sq ft house in wny sounds oversized for both. I'm in twin cities minnesota and they would both be oversized here. Unless you have a ton of infiltration...
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    I have the Hilmor and it works great. Does...

    I have the Hilmor and it works great. Does anybody know if they make a reverse bender for it
  13. Replies
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    665

    pictures would be helpful

    pictures would be helpful
  14. brand doesn't make very much difference. The...

    brand doesn't make very much difference. The quality of the install and competence of the installing contractor does.
  15. most people are not happy after switching from...

    most people are not happy after switching from hydronic (baseboard) heat to forced air heat. I would suggest a new smaller boiler (load calc required) and install ductless heatpumps using them in...
  16. no pricing allowed. I'm sure mods will be along...

    no pricing allowed. I'm sure mods will be along shortly to delete them
  17. ah, but unless you programmed a setback most...

    ah, but unless you programmed a setback most rarely have to ramp up much and are mainly for comfort, Never had any complaints, but have had many compliments. unfortunately condensing is not mandated...
  18. you don't need to set them up. It's all done with...

    you don't need to set them up. It's all done with the furnace board and controlled by run time. 97% furnaces start up at 35%, The longer the run time the more they will ramp up (the 80% furnaces...
  19. not a true statement if you have a york/coleman...

    not a true statement if you have a york/coleman product. They don't need the modulating thermostat to be truly modulating
  20. Replies
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    3,081

    because that blade rotating clockwise the small...

    because that blade rotating clockwise the small normally trailing edge is now leading. Ducks head/smucks head the smaller part of the blade is supposed to be the trailing edge.
  21. Replies
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    3,081

    yep blades definitely on backwards. Perhaps...

    yep blades definitely on backwards. Perhaps someone reversed them because the unit is so close to the wall or they're the wrong blades
  22. see post #3 sounds like he's switching to DIY so...

    see post #3 sounds like he's switching to DIY so what's the point.
  23. Replies
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    376

    then if you let the smoke out you'll call a...

    then if you let the smoke out you'll call a contractor

    :whistle:
  24. Replies
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    671

    x2

    x2
  25. you may not even be able to install them legally....

    you may not even be able to install them legally. Here in Mn they wouldn't meet the commercial energy code (seer and gas AFUE).
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    looks like someone overheated the sight...

    looks like someone overheated the sight glass/moisture indicator.
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    1,191

    I would look into a modulating gas/ variable...

    I would look into a modulating gas/ variable speed furnace with a high seer heat pump. For instance york/Coleman 60,00 BTU furnaces modulate down to a low of 21,000 BTU. So your heat pump will be...
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    1,000

    Trane voyagers have a minimum outside air...

    Trane voyagers have a minimum outside air potentiometer on the economizer board. All should be bringing in 5-25% osa. It sounds like either one or more or your RTU economizers could be bad and your...
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    1,592

    don't be surprised to see them on oem equipment...

    don't be surprised to see them on oem equipment in the near future
  30. time for another opinion

    time for another opinion
  31. Coming to an HVAC&R parts house near you

    Start mothballing your torches

    http://sporlanonline.com/ZoomLock/
    :eek2:
  32. really!!! You're suggesting this to someone on...

    really!!! You're suggesting this to someone on the AOP forum. So what if he tries your method and ruptures the diaphragm As you can see doesn't it sound like he's looking for DIY info as others have...
  33. Replies
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    no he said osa 75 and ra 65

    no he said osa 75 and ra 65
  34. Replies
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    864

    Most air handler coils are on the intake side of...

    Most air handler coils are on the intake side of the blower so when running with just a straight drain line the water won't drain out of the pan until the blower shuts down, but if running most of...
  35. Replies
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    it's low outdoor temp and low indoor temp 65...

    it's low outdoor temp and low indoor temp 65 degrees are u kidding so supply air with a 65 degree return is probably 42-45 degrees and the coil temp usually 15 degrees lower than that =27-30 degrees...
  36. bad idea. they probably ran out of 3's and used...

    bad idea. they probably ran out of 3's and used the 5. lots of fuses = a hack or inexperienced tech. Either way, sounds like they'll be back.
  37. Replies
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    1,025

    more than likely both furnace and a/c are over...

    more than likely both furnace and a/c are over sized. you will save some money by changing out the furnace plus get additional rebates, but you really need to check your house insulation and air...
  38. Replies
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    x2 on low indoor airflow and running with ra at...

    x2 on low indoor airflow and running with ra at 65 degrees
    :eek2:
  39. Replies
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    864

    with an undersized return then you need to...

    with an undersized return then you need to install a deeper trap it will still work, but better to up size the return
  40. Replies
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    3,393

    start and run windings are reversed. Try swapping...

    start and run windings are reversed. Try swapping the wires @ the run capacitor.
  41. Replies
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    316

    most are factory installed either on one of the...

    most are factory installed either on one of the outside air dampers or just above them on the economizer frame all covered by the intake hood, so you shouldn't have to install it. That's Honeywell's...
  42. then you don't understand really how a...

    then you don't understand really how a transformer works. Your short or an unwanted ground are on the 24 volt side
  43. Why not just use your multimeter on ohms with the...

    Why not just use your multimeter on ohms with the power off? installing a temporary transformer & hooking up 1 circuit at a time is backyard diy troubleshooting.
  44. Replies
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    1,898

    This still smells like either low airflow or low...

    This still smells like either low airflow or low load as circuit #1 is a full 15 tons requiring a minimum of 5,000 cfm's to prevent from freezing (normal 6,000) where as stage 2 is only 10 ton...
  45. Replies
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    Yes it does all of the above. I'd rather not give...

    Yes it does all of the above. I'd rather not give out too much information on the AOP forum to fuel more internet sales.
  46. Replies
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    329

    you can also use a Honeywell Visionpro (new...

    you can also use a Honeywell Visionpro (new style) with an EIM. It doesn't have all of the bells and whistles as the Prestige, but does just as well for a lot less $
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    remember 2x rpm=4x hp so if you put in a1625 rpm...

    remember 2x rpm=4x hp
    so if you put in a1625 rpm motor it will have to be at least 3/4 hp if not 1 hp
  48. if you get a condensing boiler you can also...

    if you get a condensing boiler you can also replace your inefficient water heater with an indirect water now or later
  49. probably only used 3/8" armaflex or worse home...

    probably only used 3/8" armaflex or worse home improvement store special. It should have been 3/4" and thoroughly sealed
  50. The problem that going with a 4 ton its more than...

    The problem that going with a 4 ton its more than likely your ducts are too small. Who knows we're not there. It could be how you're using it. Are you closing off a bunch of registers thinking that...
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