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I have installed honeywell aquastat relay per instruction manual on my dunkirk xeb-4 lp boiler furance with honeywwell ignition unit s8610u but it wont ever start the exhaust fan checked everything several times It also has a honeywell vr8204a 2217 gas valve

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  • Anonymous Mar 23, 2014

    boiler on lp gas

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2 Answers

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  • Master
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It ll operate only wen it gets fault current in main supply..can u tell how come u know tat it is workin?

Posted on Sep 13, 2008

  • 1 more comment 
  • mohammed marika thambi
    mohammed marika thambi Sep 13, 2008
  • mohammed marika thambi
    mohammed marika thambi Sep 13, 2008

    How to Reset the Oil Burner Cad Cell Relay:
    The
    photograph shows an older Honeywell cad cell relay switch - the gray
    box in the right in this illustration. If the cad cell has
    told the relay that it can't see any flame, the cad cell relay switch
    will have turned off electrical power to the oil burner
    and the red button will have popped up.

    If the red "reset" button on the cad cell relay is sticking up and the oil burner has shut down,
    the homeowner is permitted to try ONCE to "reset" the system by pressing the red reset button.

    If
    the oil burner does NOT turn on and run normally and continuously (no
    smoke, no loud noises, etc.) for at least 5 or 10 minutes after
    resetting the relay or pressing the reset button, DO NOT keep resetting
    the system since doing so can flood the combustion chamber with
    un-burned heating oil - a dangerous condition.


  • mohammed marika thambi
    mohammed marika thambi Sep 13, 2008


    use tis to check ur relay first whether workin or not?

    Using your meter, check voltage between L1 and ground.
    You should have 120 volts all time. If you do not have 120 volts
    all the time, the wiring is wrong or your breaker is off.

    Using your meter, check voltage between B1 and B2. You
    should have 120 volts (oil) or 24V (gas) when there is a call for
    heat. If you do not have 120 volts (oil) or 24V (gas) when there
    is a call for heat, you have a bad aquastat or thermostat


    note..

    left side black wire is connected directly to b2 line..
    right side black to ground




    2.

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  • Master
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If aquastat wirings are ok, and control module had been set up properly, the the furnace should start.
Check if bypassing the control the furnace starts, if it starts then check aquastat wirings.
If it depends on the furnace, check the valve, the safety sensor and the ignitor.
Here is the guide to set up the Aquastat control:
Guide to Setting & Wiring Heating System Boiler Aquastat Controls

Posted on Sep 13, 2008

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2 Answers

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the diagram is wrong as I believe you are grounding one, wire it exactly as you saw it wired in the other basement and let me know what happens. If you can post a picture of the diagram if it doesn't work, then I can see what is the difference better.

thanks and good luck

Oct 24, 2008 | Honeywell Heating & Cooling

1 Answer

Where do i adjust boiler temp on a gas fired boiler


difficult to say just where the temperature control is on your system. it will likely be an immersion type control located some on or near the boiler. it should have a temperature range scale on it.

Jan 25, 2013 | Heating & Cooling

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I have a Weil mcLain Gold gas furnace and the Amtrol WH-7L hot water maker. I heat alot with an indoor woodstove and if the furnace is not being used I cannot get any hot water. However, when the furnace...


You should download & review the manual for Amtrol Boilermate products here.

Page 12 of the manual begins examples of wiring between the Boilermate and aquastat (also gas valve and multi-zone relay), that is usually mounted on the boiler. In order to use it correctly, you'll need to determine which aquastat (or other device) your furnace has. You should be able to locate this info on the inside of the aquastat cover. The Honeywell Triple Acting aquastat is very common and looks like this:

11_29_2012_7_17_38_pm.jpg
The cover is held by a single screw on the top, bottom or front (depending on the model you have). The inside should have wiring information along with the model number. Compare the model number with the wiring diagram for it in the Boilermate manual.

Make sure power is OFF before continuing.

Check that all wires are terminated and undamaged. Make sure terminal screws are not loose. Tighten any found to be loose.

The orange wires are connected to a switch that is normally OPEN but CLOSES to start the boiler when the hot water has cooled. It is also used to operate a "power vent" for a minute or two both before ignition and after flame out for safe pre and post purging of the combustion chamber of furnaces that lack a chimney.

Blue wires are connected to a switch that is also normally OPEN but CLOSES to start the boiler when the hot water has cooled. When the switch connected to these wires is CLOSED, ignition happens instantly. There is no delay for purge so when these wires are used to start a furnace, it should be one with a chimney - not a power vent.

For additional help with your particular installation, you will need to provide information concerning the wiring diagram in the manual that applies. Otherwise, there are simply too many variations to walk through.

I suspect that the switch(es) that are connected to the orange (or blue) wires - or the device (aquastat or multi-zone relay box) is not operating as expected to start the furnace.

The troubleshooting section of the manual that seems to apply best is the section: Boiler will not operate when calling for hot water on page 27 (if you want to try some of their suggestions while waiting for additional replies).

I hope this helps..

Nov 29, 2012 | Heating & Cooling

1 Answer

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1 Answer

What would the correct high and lo and diff settings for the Honeywell L8124A Aquastat I have a wood fired boiler with the oil fired boiler side by sides,


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Apr 05, 2009 | Honeywell Heating & Cooling

1 Answer

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Jun 08, 2008 | Honeywell Heating & Cooling

1 Answer

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To enter the adjustment mode, press the UP, DOWN, and I buttons simultaneously for three seconds. Press the I button until the feature requiring adjustment is displayed:
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• LL— Low Limit.
• Ldf —Low Limit differential.
Then press the UP and/or DOWN buttons to move the set point to
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(copied from honeywell's instructions)

to clarify the differential is cut in minus the cut out.
Hope i can be some help to you.

Apr 21, 2008 | Heating & Cooling

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