re-filling efm 520 boiler system

re-filling efm 520 boiler system

PostBy: bwtucker On: Fri Jan 04, 2013 9:11 pm

I apologize in advance for my ignorance on this subject, I am new to all of this stuff. I just got done replacing the water coil gasket on my EFM 520. Everything went fairly smoothly except for one stud breaking off. A drill and tap later and I'm good to go. What is the specific procedure for re-filling the system?
bwtucker
 
Stove/Furnace Make: EFM
Stove/Furnace Model: ??

Re: re-filling efm 520 boiler system

PostBy: Rob R. On: Fri Jan 04, 2013 10:20 pm

I assume you isolated the radiator piping before you drained the boiler? If so, vent the boiler from the highest location you can and open the valve for the make-up water. Once the boiler is full and you have checked for leaks, open the rest of the valves and start a fire in the stoker. After a few heat calls you may have to bleed some air from the radiators, but that depends how the system is set up.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice/buck
Other Heating: Dad's 1953 EFM Highboy

Re: re-filling efm 520 boiler system

PostBy: bwtucker On: Fri Jan 04, 2013 11:02 pm

I closed all of the valves on the radiators before draining it, that's the only way I could since there are no other shutoff valves on the heat system piping. It's very old school. The make up valve is open. The only way to vent the boiler itself seems to be to take one of the plugs out of the back, there isn't anything to open on top of the furnace.
bwtucker
 
Stove/Furnace Make: EFM
Stove/Furnace Model: ??

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Re: re-filling efm 520 boiler system

PostBy: Wood'nCoal On: Fri Jan 04, 2013 11:10 pm

I guess there's no air scoop and bleeder at the outlet piping from the boiler then.

The air should find it's way to the highest point in the system, usually a 2nd floor radiator. With the circulator pump off bleed the air out at that point. Bleed all the other radiators after that before starting the circulator. It may take a few days and multiple trips around the house, but you'll get the air out.
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: re-filling efm 520 boiler system

PostBy: bwtucker On: Fri Jan 04, 2013 11:14 pm

That was my though too, I went around and opened all of the bleed valves of the radiators but it still doesn't seem like the system is filling. All it has is a flow control valve on the outlet. I'm starting to get frustrated and chilly.
bwtucker
 
Stove/Furnace Make: EFM
Stove/Furnace Model: ??

Re: re-filling efm 520 boiler system

PostBy: Wood'nCoal On: Fri Jan 04, 2013 11:17 pm

Does the pressure regulator on the water line to the boiler have a lever on it? That's the "fast fill" lever, will fill the system much quicker. If it's an old one it probably doesn't have the lever.
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: re-filling efm 520 boiler system

PostBy: whistlenut On: Fri Jan 04, 2013 11:20 pm

Open the pressure relief valve......manually. I'd love to see an picture of the piping, this makes no sense. There usually is a Watts Fast Fil Valve with a small arm that can be straightened up to allow for quick filling...JUST REMEMBER to turn it back down when you are filled to satisfaction!!!!. :help2: :alone: :bop: :bang: :eek2:
whistlenut
 
Stoker Coal Boiler: AA130's,260's, AHS130&260's,EFM900,GJ&VanWert
Hand Fed Coal Boiler: Franks Boiler,Itasca415,NYer130,Van Wert
Hot Air Coal Stoker Furnace: Yellow Flame
Hot Air Coal Stoker Stove: Alaska-4,Keystoker-2,
Hand Fed Coal Stove: Alaska,Gibraltor,Keystone,Vc Vigilant 2
Hand Fed Coal Furnace: Van Wert, NYer's, Ford,Jensen.
Coal Size/Type: Rice,Buck,Pea,Nut&Stove
Other Heating: Oil HWBB

Re: re-filling efm 520 boiler system

PostBy: bwtucker On: Fri Jan 04, 2013 11:35 pm

There is a lever, I just didn't want to mess with it without knowing what it would do. I will try that now.
bwtucker
 
Stove/Furnace Make: EFM
Stove/Furnace Model: ??

Re: re-filling efm 520 boiler system

PostBy: Wood'nCoal On: Fri Jan 04, 2013 11:44 pm

I was going to suggest that, but if the boiler was plumbed with a combined regulator and relief valve, as mine is, that won't work. Air goes up, I have refilled this type of system in the past, the air always finds it way to the highest point.
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: re-filling efm 520 boiler system

PostBy: Wood'nCoal On: Fri Jan 04, 2013 11:47 pm

bwtucker wrote:There is a lever, I just didn't want to mess with it without knowing what it would do. I will try that now.


Pressure regulator is set at 12 PSI, probably not enough to push out that big air bubble! Use the fast fill lever. If the pressure goes too high the pressure relief valve will open and lower it.
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: re-filling efm 520 boiler system

PostBy: bwtucker On: Fri Jan 04, 2013 11:49 pm

There are 2 Tacos inline, one has a lever, the other has a set screw with a lock not in the top. I'm guessing a pressure regulator and a relief valve. I pulled the lever up and it is still not filling. I've open the radiator valves and the vent valves on the radiators. This thing should be filling!!
bwtucker
 
Stove/Furnace Make: EFM
Stove/Furnace Model: ??

Re: re-filling efm 520 boiler system

PostBy: Rob R. On: Fri Jan 04, 2013 11:53 pm

I hate to sound like a jerk, but maybe it is time you call in a pro to get the heat on. I would hate for you to pull the wrong lever and get scalded.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice/buck
Other Heating: Dad's 1953 EFM Highboy

Re: re-filling efm 520 boiler system

PostBy: Wood'nCoal On: Fri Jan 04, 2013 11:55 pm

Yes that's the combined unit.
Assuming the valve on the water supply line is open, I have seen seldom-used valves fail when closed for the first time in years. If you open the boiler drain valve does the water start to flow?
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: re-filling efm 520 boiler system

PostBy: bwtucker On: Fri Jan 04, 2013 11:59 pm

yes,water comes out but I think it's the rad lines draining, not the feed water. I should feel the make up pipe get as cold as the cold water pipe next to it if it was flowing.
bwtucker
 
Stove/Furnace Make: EFM
Stove/Furnace Model: ??

Re: re-filling efm 520 boiler system

PostBy: Wood'nCoal On: Sat Jan 05, 2013 12:04 am

So it could be a problem with the regulator or the shut off valve on the supply line then...I would venture to guess.
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

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