Moen Posi-Temp....almost but not quite

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by das108, Mar 30, 2011.

  1. das108

    das108 New Member

    Messages:
    23
    Location:
    DC
    Hi all.

    see picture attached of the installation of the cartridge. From other pictures I've seen here that is right.

    My problem is fitting together the key stop/limit stop/handle adapter properly.

    basically, just using the handle adapter it starts at 6 o'clock being off, going clockwise starts cold and moves to warm hot, stops when you get back to 6 o'clock

    However, using any combination of they key stop/temperature stop, the handle adapter, no matter where I orient things, will not do a proper rotation starting at off, rotating clockwise through cold to hot. It gets caught on the top notch of the stop tube key stop...its as if I am missing a piece that holds the keystop far enough out or something?

    thanks so much.

    C:\Documents and Settings\David\My Documents\Downloads IMG-20110330-00041.jpg
  2. Jerome2877

    Jerome2877 In the Trades

    Messages:
    397
    Location:
    BC
    The cartridge is upside down, see the bottom H and C should be on top.

    [​IMG]

    Moen replacement 1222 for the Posi-Temp Shower Valve
    Last edited by a moderator: Mar 31, 2011
  3. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,478
    Location:
    Cave Creek, Arizona
    That only reverses the hot/cold orientation and would be proper for a valve with reversed piping. The clockwise operation is puzzling, since it should go from off to cold to hot with a counter clockwise rotation.
  4. Redwood

    Redwood Master Plumber

    Messages:
    7,453
    Location:
    Connecticut
    And that is because the pipes aren't reversed but the cartridge is...
  5. das108

    das108 New Member

    Messages:
    23
    Location:
    DC
    I'm 90% sure the piping is right on this setup.

    So to fix this, I pop out the safety pin/wire, remove the cartridge and re-insert rotated?

    I've heard some stories that these are very hard to remove without breaking/leaving something behind...any tips? (The Moen instructions are...not helpful...to say the least).

    Also, will this fix the issue with not seeming to be able to rotate enough without catching when all the pieces are in? or is that something separate.
    Thanks
    Davod
  6. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    21,888
    Location:
    New England
    Probably will fix that. All newer valves have not only anti-scald functions, but also a max temperature limit arrangement which could be levers, stops, or whatever to limit rotation past some predetermined point. These are supposed to be adjusted when installed, and may need to be readjusted summer/winter if the incoming water temps vary (well, few, if any acutally do this, but you should!). Some of it depends on how hot you actually set your WH thermostat, but the difference in summer/winter cold water temps make setting the max outlet temp vary, so the adjustment needs to change (unless you buy the more expensive thermostatically controlled valve).
  7. das108

    das108 New Member

    Messages:
    23
    Location:
    DC
    Yup. Was indeed that simple. Hardest part was getting the pin out because of the angle and size of the hole in the tile. Rotated it, put it back in, put everything back together, it all aligns properly and goes in the direction one would expect. Only casualty is a misplaced set screw for the faucet itself, which I imagine won't be too hard to get the right replacement for.
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