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Vision Pro 8000 thermostat

Silvion
Silvion Member Posts: 26
in THE MAIN WALL
I have a vision pro 8000 for steam heat. I have it set to 1 cph per hour cycle. However went it calls for heat when there is a 2 or 3 degree setback it keeps running and short cycling until the temp is met. Is there any other setting I need to adjust. System type I set to 3 Heat only. Its a oil steam furnace. I just want it to run once for the hour fill radiators with heat then shut off.
Thanks
sil

Comments

  • JStar
    JStar Member Posts: 2,752
    Any thermostat setting is just a pre-programmed "guess". It's not an accurate setting. Short cycling is typically caused by an oversized boiler, undersized venting, or improper piping.
  • Jamie Hall
    Jamie Hall Member Posts: 18,903
    JStar said:

    Any thermostat setting is just a pre-programmed "guess". It's not an accurate setting. Short cycling is typically caused by an oversized boiler, undersized venting, or improper piping.

    or, sometimes, improper pressure settings. Though less often than a somewhat oversized boiler or undersized venting, which are the two most common culprits.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England

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