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  1. Residential HVAC Forum
    I’m swapping out a Honeywell T4 for a Honeywell T6 and set up is asking me if my heat is one or 2 stage. The heat pump has a compressor outside and coils inside that provide heat (aux heat) when it’s too cold for the Compressor to do it. Is this one stage or 2?
    heat pump honeywell one stage or two stage thermostat
  2. Residential HVAC Forum
    I have a single stage gas furnace in our wood shop that heats the main area and a storage / tools area. The furnace is connected to two nest thermostats and a honeywell HZ322 zone control unit. I want to add a 24v AC relay to the zone control to turn on a circulation fan at the far end of the...
    honeywell relay stage 2 zone control
  3. Residential HVAC Forum
    <P>I am working on a old Heil gas furnace and it's not heating.  The ignitor sparks and only lites the pilot area, the burners never try to start. I am not familiar with this type of ignitor, I tried cleaning the flame sensor but didn't correct it.  I figure it needs replacing. Any ideas.  Btw...
    honeywell ignitor ignotor q3400a
  4. Residential HVAC Forum
    Hows it going? I recently.installed two honeywell ARD dampers one is a 10" and the other 8" when i cut on the thermostats to open both dampers only one opens if i shut off the opened dampers thermostat it closes alowing the other to open. Any ideas on what could be causing this? Too much air...
    auto dampers honeywell round
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