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Type: Posts; User: combustioneer

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  1. Replies
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    1,378

    biggest benefit of variable speed ecm is in zoned...

    biggest benefit of variable speed ecm is in zoned communicating systems where speed is regulated according to zones in service, as in lennox harmony. i'm no duct guy, but properly tuned, i think...
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    biggest lesson for me was to wash the condensor,...

    biggest lesson for me was to wash the condensor, change the air filter, find out if evap is plugged (hint - how dirty is the blower wheel?), and... clean the blower wheel. then all the other stuff...
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    nice setups! i should post on the wall of...

    nice setups! i should post on the wall of shame...
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    great posts...

    great posts...
  5. no heat in the condo? electric baseboard?

    no heat in the condo? electric baseboard?
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    538

    RTFM. lennox documentation was always very clear...

    RTFM. lennox documentation was always very clear about testing. use their procedures to avoid roasting the board. spend the time to read the manual, and the next 50 jobs will be much easier...
  7. Thread: Filters

    by combustioneer
    Replies
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    474

    i tell them to get the cheapest pleated filter in...

    i tell them to get the cheapest pleated filter in a 3-pack, avoid allergen filters. if it's just an oil or 80%gas, then fiber filters are fine. my thought is to protect 90+ condensing coils and...
  8. weigh in per rating on outdoor unit.

    weigh in per rating on outdoor unit.
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    900

    anticipator meant more when purging a higher mass...

    anticipator meant more when purging a higher mass system would produce a lot of rise.
  10. have had to re-route hose to the pressure sw when...

    have had to re-route hose to the pressure sw when it would form a trap. also, firing ng setup on lp or blocked vents, or cross-contamination will cause slimy buildup, even soot.
  11. true... found a carrier 90+ that ran 10 years...

    true... found a carrier 90+ that ran 10 years with the concentric vent reversed and a mesh net over the conical intake... to keep the bees out... that were nesting in the exhausting intake.... ...
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    nice job. i'm trying to break in to the control...

    nice job. i'm trying to break in to the control field from resi hvac. could you give some background on the project?
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    1,169

    thanks! guess us oil guys have a brain cell or...

    thanks! guess us oil guys have a brain cell or two... different settings for different brands?
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    1,169

    cad cell tester?

    cad cell tester?
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    536

    plugged ports in the header box is a possibility....

    plugged ports in the header box is a possibility. also check for plugged condensate drain. excess water can plug the pressure switch ports. either case could indicate a combustion issue that is...
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    plugged flues. bet there's a clothes dryer or...

    plugged flues. bet there's a clothes dryer or table saw within 10 feet...
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    flue collector box is the end of the combustion...

    flue collector box is the end of the combustion path where all of the condensate collects and is directed to a drain. if the drain is not trapped properly, or is plugged, condensate from combustion...
  18. +1 polarity. and we mean hot/neutral at L1/L2. ...

    +1 polarity. and we mean hot/neutral at L1/L2. also check your ground path from the burner rack to the green wire from the breaker panel. there is a green wire from the breaker panel, right?
  19. popped rollout on a condensing furnace is a sure...

    popped rollout on a condensing furnace is a sure sign of hx failure in general. in likidysplit's video, rollout would not be an issue since the flame dropped out. if you have a sealed combustion...
  20. 15" supply is too high and could damage the...

    15" supply is too high and could damage the valve. 12 to 12.5 under fire should be good. make sure latch-up is less than 14". spuds corrode, ream them out gently with copper wire. +1 on replacing...
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    nice job. did you bond your gas system since you...

    nice job. did you bond your gas system since you are using csst?
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    588

    winter setback for vacation homes

    what do you recommend for your snowbirds? in seacoast NH, i tell them 55 - 60 to prevent the possibility of short-cycling at colder temps and to prevent damaging warm-air units with cold returns.
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    compare readings with feeder water. why is tds...

    compare readings with feeder water. why is tds so high? are there signs of corrosion elsewhere? we recently started using fernox cleaning and treatment, so i have recently learned a few water...
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    i think this video discredits the trade and...

    i think this video discredits the trade and exposes the home owner to co risk if the safeties fail, most specifically, if the exhaust pipe has a loose enough joint.
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    condensate backing up in the header box or...

    condensate backing up in the header box or inducer. hear any water churning? has the condensate trap been cleaned? assuming this is a condensing furnace, of course. we have been bit by units set...
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