Boiler Controls

This forum is for common products and questions such as chimney installations, CO detectors, coal bin designs and a variety of other general topics that do not fit into the other forums.
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Blackdiamonddoug
Member
Posts: 328
Joined: Wed. Jun. 11, 2008 8:52 am
Stove/Furnace Make: axemen 260 rebuilt by Matt
Stove/Furnace Model: stoker AA 260
Location: haverhill Ma

Post Mon. Jan. 13, 2014 12:17 pm

I have three boiler that can be in series if needed.
The oil run off aquastat
The aa260 aquastat is set higher so when it on it carries load unless oil needed.
The new munchkin uses a dry contact to start.
Looking for easy way to start munchkin boiler first.
When aqustat calls for heat it sends 120 vac to oil burner.

My plan is to take the 120 vac to to relays
One would supply dry contacts to start munchkin
Second relay would time delay .1 to 10 minute that would start oil burner if the demand was not satisfied before it timed out.

Let me know if I am missing something?

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whistlenut
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Posts: 3549
Joined: Sat. Mar. 17, 2007 6:29 pm
Stoker Coal Boiler: AA130's,260's, AHS130&260's,EFM900,GJ & V-Wert
Hand Fed Coal Boiler: Franks,Itasca 415,Jensen, NYer 130,Van Wert
Hot Air Coal Stoker Furnace: Alaska, EFM, Keystoker, Yellow Flame
Hot Air Coal Stoker Stove: Alaska, Keystoker-2,Leisure Line
Hand Fed Coal Stove: Alaska, Gibraltar, Keystone,Vc Vigilant 2
Hand Fed Coal Furnace: Ford, Jensen, NYer, Van Wert,
Baseburners & Antiques: Glenwoods
Coal Size/Type: Barley, Buck, Rice ,Nut, Stove
Other Heating: Oil HWBB
Location: Central NH, Concord area

Post Mon. Jan. 13, 2014 12:28 pm

Am I sensing a Natural Gas pipe coming to your area? Your logic is good, but the KiloWatt Brains here will probably confuse the hell out of you.....just kidding....

You aren't old enough to feel overworked with coal are you?
"Political correctness is a doctrine, fostered by a delusional, illogical minority, and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a 'piece of human solid waste' by the clean end." More true today....

User avatar
Blackdiamonddoug
Member
Posts: 328
Joined: Wed. Jun. 11, 2008 8:52 am
Stove/Furnace Make: axemen 260 rebuilt by Matt
Stove/Furnace Model: stoker AA 260
Location: haverhill Ma

Post Mon. Jan. 13, 2014 1:09 pm

Taking a winter off from burning coal looking to see how cheep N G is.
The ash takes a lot of time
There a flexible screw conveyor on my horizon to get ash out of house


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Sting
Member
Posts: 2967
Joined: Mon. Feb. 25, 2008 4:24 pm
Other Heating: OBSO Lennox Pulse "Air Scorcher" burning NG
Location: Lower Fox Valley = Wisconsin

Post Mon. Jan. 13, 2014 1:39 pm

if your coal boiler is running [holding temp] is spite of load demands [ as it should ] then the simplest fail over is having the other two appliance's on t- stats in the house --- that are set slightly lower than comfort and will run their assigned flame- if the coal appliance should fail in some solid fuel drama ... :roll:

so just go over to the wall and adjust the "Munch-kin" stat higher than the OB stat -- OB stat becomes the fail over so I would set it [at least] 5 degrees below your comfort setting

but = It depends!
When you turn your boiler on -Does it return the favor?
I have finally lost my mind. Don't bother to return it. It wasn't working properly anyway!

User avatar
Blackdiamonddoug
Member
Posts: 328
Joined: Wed. Jun. 11, 2008 8:52 am
Stove/Furnace Make: axemen 260 rebuilt by Matt
Stove/Furnace Model: stoker AA 260
Location: haverhill Ma

Post Mon. Jan. 13, 2014 3:26 pm

I have nine zones so I need to start munchkin when any call
That's why I chose to use burner starting to delay oil and run munchkin

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