Pianotech

  • 1.  Room Humidifiers Piggy-Backing on Piano Life Saver Systems

    Registered Piano Technician
    Posted 04-12-2022 19:31

    Greetings,

    Here at CalArts we have a smattering of "techno-pianos." Unlike most of the other pianos in our inventory, we cannot put full humidity control systems on our MIDI-grands and Disklaviers, only drying rods and humidistats. It gets very dry out here, and for the heart of the school year.

    So, we started using room humidifiers (Venta L45 Comfort Plus) in some of those rooms. VERY beneficial, but must be watered much more frequently than piano-specific systems.

    In one of our classrooms, we have a piano with a complete PLSS on it. In that same room is a harpsichord (which seems to change pitch if you stare at it too long). We had a smaller capacity room humidifier on hand, one without a humidistat. (Since RH can vary 40-50% in a single day out here, we don't want a room humidifier operating without being humidistatically controlled.) As an experiment, we plugged the room humidifier into the PLSS humidistat's "Humidifier" side of things. The results after a few months are very promising. The harpsichord gets tuned at least once each week, and has been much more stable than usual. We were concerned that the room humidifier might need to be manually reset after being turned off by the PLSS, but that is not the case.

    Has anyone else tried doing this? Or anything akin to it? Might there be any potential downsides?

    FYI, y'all!

    Alan



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    Alan Eder, RPT
    Herb Alpert School of Music
    California Institute of the Arts
    Valencia, CA
    661.904.6483
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  • 2.  RE: Room Humidifiers Piggy-Backing on Piano Life Saver Systems

    Member
    Posted 04-12-2022 20:53
    I think you should run the idea/experiment by the Dampp Chaser technical people because the humidistat was designed for use with their UL tested and approved configurations and not for other equipment. You most likely voided any warranty you had on the PLSS/Dampp-Chaser system. Although it may seem alright there might also be a fire risk because of the draw the unit is making on the circuit. For everyones safety and sanity I would purchase  a larger capacity humidifier that has the proper sensors to turn it on and off and not piggyback on the PLSS humidistat.

    One of the common causes of fires is the use of those little cell phone chargers people by at the dollar store. One of the upscale communities I tune pianos in had an entire home burn to the ground while the owner was at work. She used a cheap charger on her phone and went to work for the day. Because a wood burning fireplace was nearby the chimney help feed the fire with its updraft and the fire was too hot/out of control for it to get knocked down. We have excellent fire and rescue squads here that are ISO certified and with state of the art equipment.


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    James Kelly
    Owner- Fur Elise Piano Service
    Pawleys Island SC
    843-325-4357
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  • 3.  RE: Room Humidifiers Piggy-Backing on Piano Life Saver Systems

    Registered Piano Technician
    Posted 04-12-2022 21:04
    James,

    Good point about the capacity of the PLSS humidistat to support the electrical draw of the room humidifier in addition to its own tank and smart heater bar. I'll have to look into that further.

    And yes, a higher capacity, stand alone room humidifier with its own humidistat would be preferable. This experiment was prompted by the fact that we found ourselves with a couple of small capacity room humidifiers that lacked humidistats of their own. It's a case of trying to "use what we've got to get what we want."

    Alan


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    Alan Eder, RPT
    Herb Alpert School of Music
    California Institute of the Arts
    Valencia, CA
    661.904.6483
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  • 4.  RE: Room Humidifiers Piggy-Backing on Piano Life Saver Systems

    Registered Piano Technician
    Posted 04-12-2022 21:56
    If you know someone with a little electrical knowledge, have him find a
    suitable relay with the proper capacity to run the humidifiers.?? A
    Damppchaser system might use 5 rods, so maybe 180 watts or so.?? Look on
    each humidifier unit and find out how many watts it uses.?? A relay would
    work well to isolate the humidistat from the heavier current needed to
    run the humifiers.

    I just looked on Amazon and found a humifier that covers 1300 square
    feet.?? It's 60 watts.?? So, probably you could use the humidifier with
    the damppchaser without a problem.?? Unless you're running some big kind
    of humidifier unit for a very large room.

    Paul McCloud

    San Diego




  • 5.  RE: Room Humidifiers Piggy-Backing on Piano Life Saver Systems

    Posted 04-12-2022 20:56
    Does the humidistat have the capacity to handle the power requirement of the humidifier?
    You might be over-taxing the humidistat or under powering the humidifier.
    What is the wattage requirement of the humidifier?
    Hopefully the folks at DC will chime in.

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    Regards,

    Jon Page
    mailto:jonpage@comcast.net
    http://www.pianocapecod.com
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  • 6.  RE: Room Humidifiers Piggy-Backing on Piano Life Saver Systems

    Posted 04-13-2022 05:53
    FWIW, your humidifier only consumes a maximum (when on high) of 8 watts! I don't think it will overload your humidistat!!!

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    Terry Farrell
    Farrell Piano Service, Inc.
    Brandon, Florida
    terry@farrellpiano.com
    813-684-3505
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  • 7.  RE: Room Humidifiers Piggy-Backing on Piano Life Saver Systems

    Registered Piano Technician
    Posted 04-13-2022 08:06
    Secondarily FWIW I'm pretty sure that the stat is nothing more than a switch that is activated by a humidity sensitive device (technically no different than a wall switch activated by hand). I do not believe the current for the outlets is modified in any way (obviously for the LWL and moisture detection circuits current is modified for their liw power requirements). I have known others over the years who have connected room humidifiers into the stat outlet with no adverse ramifications. 

    Peter Grey Piano Doctor

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    Peter Grey
    Stratham NH
    603-686-2395
    pianodoctor57@gmail.com
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  • 8.  RE: Room Humidifiers Piggy-Backing on Piano Life Saver Systems

    Registered Piano Technician
    Posted 04-13-2022 08:32
    Peter wrote:
    "I have known others over the years who have connected room humidifiers into the stat outlet with no adverse ramifications."

    Thanks for this very valuable, real life info, Peter!

    Alan

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    Alan Eder, RPT
    Herb Alpert School of Music
    California Institute of the Arts
    Valencia, CA
    661.904.6483
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  • 9.  RE: Room Humidifiers Piggy-Backing on Piano Life Saver Systems

    Registered Piano Technician
    Posted 04-13-2022 08:30
    Terry,

    Yes, 8 watts max. good news, eh?

    Alan

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    Alan Eder, RPT
    Herb Alpert School of Music
    California Institute of the Arts
    Valencia, CA
    661.904.6483
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