EFM Install Completed. Help Needed With the Aquastat

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CoalHeat
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Stoker Coal Boiler: 1959 EFM 350
Hand Fed Coal Stove: Harman Magnafire Mark I
Baseburners & Antiques: Sears Signal Oak 15 & Andes Kitchen Range
Coal Size/Type: Rice and Chestnut
Other Heating: Fisher Fireplace Insert
Location: Stillwater, New Jersey

Post Sat. Feb. 26, 2011 8:39 pm


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stoker-man
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Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove
Location: Lehigh Valley, PA

Post Sat. Feb. 26, 2011 10:33 pm

I'm curious myself. If he means number 1 terminal from the aquastat to ZR, it means that the stoker motor will run continuously with no high limit protection.

smtm
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Stove/Furnace Model: EFM 520 Highboy
Location: southeast PA

Post Sat. Feb. 26, 2011 10:52 pm

[quote="stoker-man"]I'm curious myself. If he means number 1 terminal from the aquastat to ZR, it means that the stoker motor will run continuously with no high limit protection.[/quote

Stoke shuts off at high limit with the jumper installed.

The jumper replaces the feed from the timer when the timer is not active

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stoker-man
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Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove
Location: Lehigh Valley, PA

Post Sun. Feb. 27, 2011 6:55 am

OK, got that. So, why do you want to run continuously? Is you heat load that big?

Visit Alternate Heating Sytems

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CoalHeat
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Posts: 8331
Joined: Sat. Feb. 10, 2007 9:48 pm
Stoker Coal Boiler: 1959 EFM 350
Hand Fed Coal Stove: Harman Magnafire Mark I
Baseburners & Antiques: Sears Signal Oak 15 & Andes Kitchen Range
Coal Size/Type: Rice and Chestnut
Other Heating: Fisher Fireplace Insert
Location: Stillwater, New Jersey

Post Sun. Feb. 27, 2011 7:24 am

smtm wrote:
The circulator is wired to run 24/7 since I will not be able to run control wires from my house to the boiler (which is located 75' from the house in a seperate out building) until spring
When the 110 volt stat in the house calls for heat, it turns on the furnace fan only and heat is extracted via the heater coil installed in the return side of the duct work.

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stoker-man
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Posts: 2063
Joined: Mon. Nov. 19, 2007 9:33 pm
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove
Location: Lehigh Valley, PA

Post Sun. Feb. 27, 2011 11:17 am

I understand now what he's doing. He wants a constant coal-fired hot water supply available to an in-house system, which is using a thermostatically controlled air handler and coil.

I use a similar system myself, but with a different method. I guess I didn't have my thinking cap tied on properly.

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CoalHeat
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Posts: 8331
Joined: Sat. Feb. 10, 2007 9:48 pm
Stoker Coal Boiler: 1959 EFM 350
Hand Fed Coal Stove: Harman Magnafire Mark I
Baseburners & Antiques: Sears Signal Oak 15 & Andes Kitchen Range
Coal Size/Type: Rice and Chestnut
Other Heating: Fisher Fireplace Insert
Location: Stillwater, New Jersey

Post Sun. Feb. 27, 2011 12:01 pm

You're forgiven!

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