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Ultra control

Sweet_2
Sweet_2 Member Posts: 143
in THE MAIN WALL
Installed my first Ultra.yesterday, nice boiler. On the control display, when using the outdoor sensor when in the para. mode the manual is a little confusing about the outdoor sensor setup. Do I need to set the controller for outdoor reset or does it sense that its hooked up.

Comments

  • Floyd_7
    Floyd_7 Member Posts: 136
    It knows when you hookup the sensor....

    If there is no sensor the circuit is open... when you hookup the sensor it reads the resistance across the sensor and converts it to a temp.
    You will want to change the boost feature and maybe the reset curve... they come from the factory with a bottom end on the reset curve of 32*.... much too high....
    I'll attach the info booklet that will give yoou the info to do those changes....

    Floyd
  • Sweet_2
    Sweet_2 Member Posts: 143
    Thanks alot Floyd

    you have been very helpful and knowledgable about the Ultra . Appreciate all the info.
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