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Runtal TRV numbers/temp

H2OBandit603
H2OBandit603 Member Posts: 64
in Radiant Heating
What temperatures F do the numbers 1-6 correspond to on the runtal decorative TRV’s?
NH well driller and pump installer, 3rd generation
What one man can do, another can do.

Comments

  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 9,161
    Really?
    1. is kind'a of cold.
    2. is a little warmer
    3. is just about right
    4. is if you don't want to wear sweats
    5. is getting a little too warm
    6. is getting ridiculous, so why do you even bother putting a TRV on in the first place

    And I love Runtal for choosing this system

    You don't get that call where the customer says "i set it at 68° and it is only 67° in the room. When can you come and fix this?

    Edward Young Retired

    After you make that expensive repair and you still have the same problem, What will you check next?

    Big Ed_4
  • H2OBandit603
    H2OBandit603 Member Posts: 64
    They must calibrate these things…
    NH well driller and pump installer, 3rd generation
    What one man can do, another can do.
    EdTheHeaterMan
  • hot_rod
    hot_rod Member Posts: 23,128
    40-80f is the typical range. Some brands have a liquid crystal temperature display in the knob. Caleffi had a display TRV, but I don’t see it in the catalog this year. The display tended to fad away after time.

    Or electronic heads.
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • Big Ed_4
    Big Ed_4 Member Posts: 2,988
    edited January 1
    There are too many variables with TRVs mounted on different radiators and locations to work all the same . Besides , temperature and humidity equals comfort . If one is too high or low your comfort is lost . Here in the states we are too fixated on just temperature . Just like the metric system the "Comfort Zone" makes more sense ..

    There was an error rendering this rich post.

    EdTheHeaterMan
  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 9,161
    edited January 1
    H2OBandit603 said:

    They must calibrate these things…

    I'm sure they do. but to what temperature at what location? Will you be installing the measuring device near the floor? Will you be installing the measuring device at the top of a panel radiator? Or perhaps at normal thermostat hight with the aid of a remote capillary tube. What location would like them to calibrate it for. The TRVs located on the radiator will certainly not measure the room temperature as accurately as the one that is placed further away from the radiator with a remote capillary tube.


    I might suggest if you can not find a comfortable room temperature with the 1 2 3 4 5 6 setting, maybe you can switch brands of TRV to ones that use A B C D & F. I think they get better grades on most tests and report cards unless you use the F setting all the time.

    I think my first attempt at explaining calibration settings above is the best you are going to get! My best advise: If you are cold, turn it up, if you are hot turn it down.

    Edward Young Retired

    After you make that expensive repair and you still have the same problem, What will you check next?

  • hot_rod
    hot_rod Member Posts: 23,128
    Like this? A Euro version, reads in C.
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
    H2OBandit603

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