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Carlin EZ gas...

kcopp
kcopp Member Posts: 4,431
in Gas Heating
I have recently used a Carlin ez gas in a 3 section Smith steam boiler. All went pretty well and the combustion numbers were all w/in spec. 10 days go by.... Homeowner calls Friday night saying the burner has locked out. hits reset all OK. I go by Saturday and the burner locks out again. I try to get a reading w/ my multimeter using the plug in harness they give you... every time I plug it in or leave it plugged in the burner drops out and locks up.... Other than that it runs fine... Bad primary control?

Comments

  • JStar
    JStar Member Posts: 2,752
    Carlin

    What were the flame sensor readings? Is the gapping correct? Fuel pressure? Combustion numbers? Draft?
  • kcopp
    kcopp Member Posts: 4,431
    I never could get....

    a flame sensor reading because each time the probe was plugged in the burner would drop out.

    It runs ok w/o the probe plugged in. Just the 1 lockout.

    O2..5.4, CO2 5.7, CO 16ppm, EA 30%,    7/32 orifice clocked @ 87,096 btu

    Smith series 8-3  w/ B diffuser plate.
  • icesailor
    icesailor Member Posts: 7,265
    EZ Gas:

    Because I have not had the opportunity to work on an EZ-Gas but I have sold a ton of EZ-1 Oil Burners, consider this.

    If Carlin is using a 60200 control or a similar CCT controller with a cad cell, I have had to do this when the cad cell reading was poor.

    Remove the cad cell wires from the controller and connect them to a Multi tester. I prefer an Analog for this. Have a set of jumper clips available and connected to one side of the F-F terminals. As soon as you get combustion/fire, connect the other lead to the other "F-F" terminal. The control will now think it sees a flame. You can now do adjustments that will be recorded on the Multi tester. If the Ohm reading is too high, you will see it. You can make adjustments to get the Ohm reading down.

    If you can't get an OHM reading, it's probably too high. You hear of guys painting the inside of tubes to increase reflection. This is why. You can't diagnose this problem with a analyzer. You can get perfect numbers and still have not enough flame showing to satisfy the control. If the Ohms are OK, then, you have eliminated that side of the problem. 

    I had an EZ-1 oil with a Power Venter that was pulling the flame from the retention head but I couldn't see it. I found it with an Ohm meter. Firedragon has a good posting about it on his web site.
  • Paul48
    Paul48 Member Posts: 4,469
    By the manual

    CO2 minimum is 8.5% and 7/32 orifice is for 100000 btus. Outlet pressure on the gas valve should be 3.5" wc(min=3.2,max=3.8). Ten days tells you something.
  • Steamhead
    Steamhead Member Posts: 16,832
    edited January 2013
    Actually

    the EZ-Gas uses a flame-rod sensor with a matching primary control. Check the flame rod to see if it hasn't come loose and changed position.
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
  • kcopp
    kcopp Member Posts: 4,431
    update...

    my CO2 # was a mis-type... should have typed 8.7.

     I talked w/ Ron form Carlin. The flame sensor tool has to be plugged in to the voltmeter, On in mV DC and ready to go... otherwise it breaks the circuit and shuts it down.
  • icesailor
    icesailor Member Posts: 7,265
    Well, now I know:

    Well, now I know.

    Someday, I'll get to see more of one than just sitting on a table at a trade show.

    Where I work, any oil boiler, no matter how efficient, will get ripped out and a gas/Hydro Air will be installed with one big rfeturn over the air handler. Its a good trade off?
  • Steamhead
    Steamhead Member Posts: 16,832
    Switching to gas probably is

    switching from radiators to hydro-air definitely is not.
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
  • VictoriaEnergy
    VictoriaEnergy Member Posts: 126
    edited February 2013
    ..

    .
    Home Owners Please Note:





    You are receiving advice from some very skilled pros completely free of charge. One of the reasons I participate is to sharpen my own troubleshooting skills. So; did we get it right? I would be grateful if you extend this courtesy back by posting the final outcome of the issue you are inquiring about. Thanks
    Athana
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