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Cyclegard must go

Dan_NJDan_NJ Posts: 67Member
After going to some trouble to be able to run this boiler in a power outage, now that I'm in one and doing that the cyclegard keeps stifling my cycle! Need to swap for a safgard one day soon.

Comments

  • hvacfreak2hvacfreak2 Posts: 452Member
    All of the manufacturers seem to use them so they must be good right ?
    hvacfreak

    Mechanical Enthusiast

    Burnham MST 396 , 60 oz gauge , Tigerloop , Firomatic Check Valve , Mcdonnell Miller 67 lwco , Danfoss RA2k TRV's

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  • Dan_NJDan_NJ Posts: 67Member
    Less of a problem now that the power's back on but I hate wasting precious battery power on that thing. Change is coming
  • GordoGordo Posts: 624Member
    Cycleguard? I think you mean psychoguard.
    All Steamed Up, Inc.
    "Reducing our country's energy consumption, one system at a time"
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  • Mad Dog_2Mad Dog_2 Posts: 3,455Member
    I remember trying to Mex a steamer many moons ago and every time I'd get a good head of steam going it would shut down. Drove me MAD!!! ha ha. I like that Gordo Psychoguard
    Mad Dog
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  • Big Ed_4Big Ed_4 Posts: 1,093Member
    The thought is good , but it should be adjustable ..
    I have enough experience to know , that I dont know it all
  • Dan_NJDan_NJ Posts: 67Member
    I'd almost prefer the old float style as primary and probe type like safgard as a secondary. As long as the probe secondary is not a Cyclegard :)
  • AnthraciteEnergeticsAnthraciteEnergetics Posts: 77Member
    There is a "burner" terminal on the Cyclegard and if you switch 120 V power to that when the boiler fires and turn it off-on-off at <10 minute intervals thereafter, you can keep delaying the "self test" cycle and prevent the mid fire shutdowns. Use a "duty cycle timer" module and relay (to switch 120 V from the 24 V controls) to pulse the burner terminal at something slightly less than the self test interval (Mine is 10 minutes). Read your particular model's manual to be sure voltages match. Cost is much less than a new LWCO.
  • neilcneilc Posts: 428Member
    not sure I understand,
    what's the difference between street power, and generator power, with regard to the cyclegard?
  • Dan_NJDan_NJ Posts: 67Member
    >what's the difference between street power, and generator power, with regard to the cyclegard?
    Not much difference between those two but I'm working off battery power. It's limited and lengthening the cycle by stopping every 10 minutes keeps my system on longer and spends more power. Goal is to get maximum number of cycles per AH of battery capacity, without having to haul out the generator to recharge.
  • neilcneilc Posts: 428Member
    ah, batteries, now I get it
  • Dan_NJDan_NJ Posts: 67Member
    edited March 8

    There is a "burner" terminal on the Cyclegard and if you switch 120 V power to that when the boiler fires and turn it off-on-off at <10 minute intervals thereafter, you can keep delaying the "self test" cycle and prevent the mid fire shutdowns. Use a "duty cycle timer" module and relay (to switch 120 V from the 24 V controls) to pulse the burner terminal at something slightly less than the self test interval (Mine is 10 minutes). Read your particular model's manual to be sure voltages match. Cost is much less than a new LWCO.

    I like this idea but for a few reasons I am not going to get into this type of modification of this since it is safety device. Would be nice if the Cyclegard probe is identical to Safgard though.
  • FredFred Posts: 6,776Member
    The probes are the same.
  • AnthraciteEnergeticsAnthraciteEnergetics Posts: 77Member
    The way mine was wired, it cut off 120 V power to the control transformer. Power draw was less in the test cycle than during standby/idle because the junky control transformer that came with the boiler uses 10 W in magnetizing current.

    As for the safety concern, the cutoff still works on a real low water condition. The whole test cycle, as you may know, had to do with foam during firing tricking the cutoff into thinking it has water over the probe.

    Since boilers rarely loose their water catastrophically (if it does, you have bigger problems), risk is mimimal. I'd be more concerned about a float type LWCO hanging up especially when most homeowners don't maintain them.
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