Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Amtrol water maker, 41 gallon model. 10 gallons and she's done.

older_dog
older_dog Member Posts: 8
in THE MAIN WALL
New amtrol 41 gallon water maker. 10 gallons and it's cold. This has a mechanical aquastat and is heated by an HTP boiler. The aquastat does not seem to be functioning properly. My plan is to install the 10k ohm sensor and see if that works. Any ideas?

Comments

  • HVACNUT
    HVACNUT Member Posts: 6,338
    edited September 2017
    Is the aquastat new with the tank?
    The aquastat is just switching? Not 24v powered with lights?
    Is there a differential setting?
    Heat loop air bound?
    Dip tube installed?
  • Grallert
    Grallert Member Posts: 780
    Zone valve or pump?
    Miss Hall's School service mechanic, greenhouse manager,teacher and dog walker
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 16,499
    pictures
  • JUGHNE
    JUGHNE Member Posts: 11,279
    What was the previous DHW heating system and did it perform better?
  • newagedawn
    newagedawn Member Posts: 586
    that model has had bad aquastat's in the past,...if you are getting voltage to it, its bad, i would recomend the non digital one, they last alot longer than the digital one's and they are cheaper
    "The bitter taste of a poor install lasts far longer than the JOY of the lowest price"
    kcopp
  • j a_2
    j a_2 Member Posts: 1,801
    The
    EBEBRATT-Ed said:

    pictures

    Yup agree pictures do a good job of cutting out long drawn out guessing posts....
  • older_dog
    older_dog Member Posts: 8
    Sorry, no pics yet. Update. I replaced the aquastat with the 10k ohm sensor. Nowi can read the temp of the tank from the boiler control panel. I poured heart to the tank and got that temp up to 123F. Got maybe 2 gallons of hot (nowhere near scalding) water into the tub. Basically the sensor is telling me i have a full tank of hot water but reality says basically no hot water. Controlled by pump. I'm guessing around but when the pump is running both supply and return lines get super hot.
  • older_dog
    older_dog Member Posts: 8
    I meant I'm guessing airbound.
  • HVACNUT
    HVACNUT Member Posts: 6,338
    @older_dog

    Seems like the tank IS up to temp.

    Are you sure the dip tube was installed?

    Supply and return will get hot.
  • older_dog
    older_dog Member Posts: 8
    edited September 2017
    I don't know what the dip tube is
    .
  • older_dog
    older_dog Member Posts: 8
    Dip tube
  • older_dog
    older_dog Member Posts: 8
    edited September 2017
    Sure wish i knew what a dip tube was.
  • older_dog
    older_dog Member Posts: 8
    Maybe you need to know that this is not a boiler mate it is a hydromax, all piped from the top.
  • HVACNUT
    HVACNUT Member Posts: 6,338
    In the I&O manual, whether you have the BoilerMate or HydroMax, look at replacement parts.
    The cold water dip tube brings the inlet cold near the bottom of the tank, ensuring you only draw hot out the top of the tank when needed.
    If it's not there, the cold will just enter the top of the tank and get drawn right back out the hot side.
  • older_dog
    older_dog Member Posts: 8
    Thanks. Don't understand why the unit wouldn't come with it already installed but i will check.
  • JUGHNE
    JUGHNE Member Posts: 11,279
    It might be installed....should be in the cold inlet side.
    Might the H & C connections be reversed?
    If so you would be getting some hot water off of the bottom of the tank and with cold entering the top it would cool off the bottom as it fell by gravity.

    On conventional WHs the dip tube is movable from port to port, don't know about your tank though.
  • Jamie Hall
    Jamie Hall Member Posts: 24,878
    JUGHNE said:

    ...
    Might the H & C connections be reversed?....

    Wouldn't be the first time, but is easy enough to check -- the H & C connections should be labelled on the top of the tank. Draw hot water at a tap, and the H connection should be hot and the C connection cool or cold.

    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England

Categories