yellow leads Beckett Burner

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Old 12-16-05, 08:12 PM
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yellow leads Beckett Burner

Wiring a beckett burner to a single zone boiler. This burner was on this system but was moved from one house to another.
4 leads from the burner to the " control box?"
I know where the black & white leads go but not sure on the yellow.
Aren't they for a 2 zone system and if I don't need them don't I just tape them up?

Thanx
 
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Old 12-17-05, 05:57 AM
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Yellow Wires

Hello. Your Yellow wires need to be hooked up for proper operation. The yellow wires are for your Cad cell inside the burner. It checks to see if a flame is present. They should go to the burner control. Is the burner control module a Beckett as well?
 
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Old 12-18-05, 05:22 PM
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the burner control is a Honeywell.
 
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Old 12-18-05, 06:29 PM
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The yellow leads get connected to the F terminals on the control. They are for the flame sensor. If you don't hook them up, the burner will lock out after 45 seconds every time you try it.

Ken
 
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Old 12-19-05, 06:50 PM
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The burner control is a Honeywell L8124A Triple Aquastat Relay
I do not see any F terminals in the unit.

I see
L1 L2 ( power)
T T ( Thermostat)
C1 C2 Circulator
B1 B2 Burner ( Black on B1, White on B2)
open terminals are: ZC next to C1
ZR next to B1

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Old 12-19-05, 07:02 PM
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L8124

In addition to the L8124, you need an R8184G or similar control for flame safety. Failure to install a "cad cell relay" is extremely dangerous. The B1 & B2 terminals of the L8124 would connect to black & white respectively on the R8184. The orange on the R8184 will connect to the black burner motor wire & one side of the ignition transformer. The other side of the transformer & the white burner motor wire connect to the white of the R8184 & the wire coming from terminal B2 of the L8124. You will place a jumper wire between terminals T & T on the R8184 & connect the yellow wires to terminals F & F.
 
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Old 12-20-05, 06:20 PM
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Guess What? I had switched the new CB w/ the old one. The correct one does have the f terminals etc.... I confirmed it w/ the pics I took at the beginning of the project.
This heater( complete) was taken out of one house and put in another.
When I call a srevice tech to check it, what type of test should he /she run.
Is it necessary to have a tech look at it?

Thank you very much for everything. I'm sure I'll be back.
 
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Old 12-20-05, 06:36 PM
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Service Tech

You may have trouble finding a tech to work on it. Many techs will not work on equipment installed by a homeowner or especially used equipment installed by a homeowner. If you do find someone to work on it, they should check all of the wiring, fuel piping, water piping, & venting before they do any combustion testing. The operational & combustion tests should consist of: Pump running & cut off pressures, check the ignition transformer, check ignition electrode settings, check safety cut out time, aquastat settings & how well the settings compare to actual temperatures. While the burner is running the following tests should be made: Smoke spot number, Draft, CO2, (or O2), CO, & stack temperature.
 
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