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GB and RC control??

Dave_22
Dave_22 Member Posts: 232
in THE MAIN WALL
Put in the first GB and have lots of questions lately!!!! The system is all panel rads with TRV's (except in the room with the RC controller). Is the RC capable of night time setback? The manual for it talks about a clock - but I don't see a clock or where to set it. Also- when the system was operating, it was 1.5 degrees over the setpoint and the burner was still on. Is this right? What is the differential? Does it really "teach" itself how to run like I have heard in the past? Inquiring minds gots ta know!!!! Thanks.

Comments

  • Mike T., Swampeast MO
    Mike T., Swampeast MO Member Posts: 6,928


    The indoor reset scheme of the GB seems to be confusing lots of people.

    At least you're using TRVs.

    Yes, it will learn.

    Just never forget that the space with the RC-controller is the 100% master!

    Setback is ALWAYS available via the individual TRVs. General setback is available by setting the RC-controller to a low level. Sorry--haven't read about the timing options but such should be preferable as it will "understand" the difference between setting on the RC and desired setback.

    More and more, I'm becoming convinced that savings from daily setbacks are mainly fallacy. GENERAL setback however, combined with a condensing/modulating boiler and TRVs offers truly amazing reductions in fuel consumed. The control system of the GB does this automatically...

    The only flaw with the control system of the GB is that for finest, most efficient operation you must design your system such that any generally desired differences in space
    temperature are "hard wired" via emitter size vs. heat loss.
  • jp_2
    jp_2 Member Posts: 1,935
    what?

    mike, whats the difference between these two setbacks???

    ....I'm becoming convinced that savings from daily setbacks are mainly fallacy. GENERAL setback however, combined with...

    whats "General" setback? isn't a setback a setback?
  • Mike T., Swampeast MO
    Mike T., Swampeast MO Member Posts: 6,928


    "General" setback is an at-all-times reduction in thermostat setting.
  • jp_2
    jp_2 Member Posts: 1,935
    got it

    I'm tending to agree on set backs. hope to do actual house tests this winter, got two customers wanting to know the real deal! FHA & radiator
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