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Author Topic: Added new Honeywell Temp controller to 400  (Read 1779 times)

heat550

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Re: Added new Honeywell Temp controller to 400
« Reply #15 on: September 14, 2016, 02:45:05 AM »

Ok back to wood saving :)

Your switch can you set it so If the boiler temp drops below 120 f it shuts draft fans off . untill your there to reset it and re stoke the fire . Because I know below 120f and wood burned out  all its doing is cooling off the fire box and water . I need to figure this out there has to be easy way . even like boiler temp drops to 120f and draft fans off for 3-4 hours then you reset when loading . then there will be little coals left for refiring also :)  nothing more depressing them hearing fans run and no smoke that means btus left are going out of chimney. any ideas or input let me know .  :thumbup:

Heat550
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slimjim

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Re: Added new Honeywell Temp controller to 400
« Reply #16 on: September 14, 2016, 03:47:51 AM »

Cut the power wire to the blower motor, take the 2 ends and run them to the Honeywell strap on R and B terminals set it at desired temp, then also in parralel wire a 60 minute timer.
This shuts off the blower at below setpoint, when you want to fire back up use the timer to make the connection and get the water temp back over the setpoint.
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Wood boiler sales, service and installation for the Northeastern USA.

heat550

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Re: Added new Honeywell Temp controller to 400
« Reply #17 on: September 17, 2016, 03:41:50 AM »

Cut the power wire to the blower motor, take the 2 ends and run them to the Honeywell strap on R and B terminals set it at desired temp, then also in parralel wire a 60 minute timer.
This shuts off the blower at below setpoint, when you want to fire back up use the timer to make the connection and get the water temp back over the setpoint.

Great way to do it :) So if I understand it your allowing 60 mins to get boiler back over 120f when reloading .  What model of tork timer did you use ? I will have to try this . because 400dcss 2 fans blows some serious air out the chimney. I take it your putting honywell strap on the pex al pex out line .  Nice simple fail proof way to do it . Thanks for the info .  :thumbup:

Heat550
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slimjim

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Re: Added new Honeywell Temp controller to 400
« Reply #18 on: September 17, 2016, 04:28:57 AM »

No, it should go on the supply line but preferably on metal such as copper, brass or black iron.
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Wood boiler sales, service and installation for the Northeastern USA.

heat550

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Re: Added new Honeywell Temp controller to 400
« Reply #19 on: October 02, 2016, 02:07:37 AM »

Ok so Boiler out at bottom . I will have to think about where to put the Honeywell stat . Maybe I can find some brass to strap it to .
I have 3 zones so theirs bit going on back there . I was wondering about timer model that works best . How much do think it could save I average 15 cord  a year . Im game for saving wood  :thumbup:

Heat550
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slimjim

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Re: Added new Honeywell Temp controller to 400
« Reply #20 on: October 02, 2016, 03:58:36 AM »

Any spring return, 60 minute, 120 volt timer will work.
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Wood boiler sales, service and installation for the Northeastern USA.

heat550

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Re: Added new Honeywell Temp controller to 400
« Reply #21 on: October 10, 2016, 01:16:27 AM »

I have one of these on hand will that work . Its rated for 20 amps 60 mins . Im just wondering because moisture might be a issue .
and they might have sealed ones . they have 1 hour 2 hour 4 hour 6 hour . :thumbup: Im thinking 2 hour one just incase .
If I have to order one and my old one don't work .

Heat550
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juddspaintballs

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Re: Added new Honeywell Temp controller to 400
« Reply #22 on: November 24, 2018, 01:21:13 PM »

dredging this back from the dead.

It appears my boiler is having the original Honeywell aquastat issues now.  I'm not home to diagnose, so I'm just going off of what my wife is telling me.  I know they eventually stop working, though. 


Would this controller replace both aquastats on the boiler and keep me running pretty much how I am already?
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