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Question about thermostat wiring on new boiler

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codyr
codyr Member Posts: 12
in Thermostats and Controls
I’m installing a new Buderus boiler for radiant floor heat and was about to hook up the red thermostat wire to “R” and white wire to “W” but noticed that there is a factory installed jumper between both contacts. Do I just leave this jumper in place and proceed with the wiring connections? Thanks! 

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  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 7,834
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    That jumper will make the thermostat irrelevant if that is where you are supposed to connect it. What do the directions say?
    Edward F Young. Retired HVAC ContractorSpecialized in Residential Oil Burner and Hydronics
  • codyr
    codyr Member Posts: 12
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    EdTheHeaterMan said:
    That jumper will make the thermostat irrelevant if that is where you are supposed to connect it. What do the directions say?
    There is nothing in the directions about connecting the thermostat wires. All it says is “see wiring diagram.” There’s a picture of the jumper in place in one of the manual diagrams which confused me more. 
  • STEVEusaPA
    STEVEusaPA Member Posts: 6,506
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    What does it say where there is a triangle with a 2 in it?
    steve
  • codyr
    codyr Member Posts: 12
    edited February 2021
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    STEVEusaPA said:
    What does it say where there is a triangle with a 2 in it?

    The triangle with the 2 is the thermostat wires, per the instruction diagram 

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