outdoor reset

  1. Calibretto

    "WWSD On Diff" - How it Works - Navien NCB 240-110H

    I recently had the Navien NCB 240-110H installed in my home and I'm trying to decide on the appropriate setting for "WWSD On Diff". The only info in the manual on this setting is on p. 107: "Set the differential temperature to deactivate the Warm Weather Shutdown." Link to the manual PDF...
    • Calibretto
    • Thread
    • navien odr outdoor reset warm weather shut down wwsd
    • Replies: 1
    • Forum: Boiler Forum
  2. jtforester

    Taco Fuelmizer (SR501-OR) with SR504

    Hi everyone, First time poster here but have read these forums for years. Im adding a zone to my natural gas boiler and would like to add the outdoor reset control too. Right now I have a Taco SR503 3-zone switching relay, all space heating baseboard zones. I need a 4th heating zone. The...
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