EFM install completed. Help needed with the aquastat

Re: EFM install completed. Help needed with the aquastat

PostBy: Wood'nCoal On: Sat Feb 26, 2011 9:39 pm

Wood'nCoal
 
Stoker Coal Boiler: 1959 EFM 350
Hand Fed Coal Stove: Harman Magnafire Mark I
Coal Size/Type: Rice and Chestnut
Other Heating: Fisher Fireplace Insert

Re: EFM install completed. Help needed with the aquastat

PostBy: stoker-man On: Sat Feb 26, 2011 11:33 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.
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

Re: EFM install completed. Help needed with the aquastat

PostBy: smtm On: Sat Feb 26, 2011 11:52 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
smtm
 
Stove/Furnace Model: EFM 520 Highboy

Re: EFM install completed. Help needed with the aquastat

PostBy: stoker-man On: Sun Feb 27, 2011 7:55 am

OK, got that. So, why do you want to run continuously? Is you heat load that big?
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

Re: EFM install completed. Help needed with the aquastat

PostBy: Wood'nCoal On: Sun Feb 27, 2011 8:24 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.
Wood'nCoal
 
Stoker Coal Boiler: 1959 EFM 350
Hand Fed Coal Stove: Harman Magnafire Mark I
Coal Size/Type: Rice and Chestnut
Other Heating: Fisher Fireplace Insert

Re: EFM install completed. Help needed with the aquastat

PostBy: stoker-man On: Sun Feb 27, 2011 12:17 pm

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

Re: EFM install completed. Help needed with the aquastat

PostBy: Wood'nCoal On: Sun Feb 27, 2011 1:01 pm

You're forgiven!
Wood'nCoal
 
Stoker Coal Boiler: 1959 EFM 350
Hand Fed Coal Stove: Harman Magnafire Mark I
Coal Size/Type: Rice and Chestnut
Other Heating: Fisher Fireplace Insert