EFM 25 pressure cold.

EFM 25 pressure cold.

PostBy: shapechanger On: Tue Sep 24, 2013 10:36 am

Why my EFM at 25 psi cold? What could be a possible reason? New Flow Valve New expansion tank...Any Ideas?
shapechanger
 
Stove/Furnace Make: EFM 52-
Stove/Furnace Model: 520

Re: EFM 25 pressure cold.

PostBy: tsb On: Tue Sep 24, 2013 12:38 pm

Domestic Coil ?
tsb
 
Stoker Coal Boiler: Binford 2000
Hot Air Coal Stoker Stove: LL Pioneer top vent
Hand Fed Coal Stove: Saey Hanover II

Re: EFM 25 pressure cold.

PostBy: fifthg On: Tue Sep 24, 2013 1:27 pm

could air or debris like rust have gotten in to gauge to give a false reading?
fifthg
 
Stoker Coal Boiler: EFM 520
Hot Air Coal Stoker Furnace: Harman DVC 500
Baseburners & Antiques: Reading Foundry & Supply Co.
Coal Size/Type: rice,pea Gale Mining Co Anthracite

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Re: EFM 25 pressure cold.

PostBy: franco b On: Tue Sep 24, 2013 2:47 pm

Drain some water off and close the feed valve for a few days to see if the pressure then rises again. You have to eliminate things one by one. Only two places water can get in. Through the feed valve or domestic coil.
franco b
 
Hand Fed Coal Stove: V ermont Castings 2310, Franco Belge 262
Baseburners & Antiques: Glenwood Modern Oak 114
Coal Size/Type: nut and pea

Re: EFM 25 pressure cold.

PostBy: Sting On: Tue Sep 24, 2013 5:45 pm

Because ....The gauge is bad :?:
Sting
 
Other Heating: BurnHAM=NG-gas

Re: EFM 25 pressure cold.

PostBy: waldo lemieux On: Tue Sep 24, 2013 7:24 pm

My money is on a bad or stuck makeup valve.Drain some water out and Dial the valve back and see how high the pressure comes back.
waldo lemieux
 
Stove/Furnace Make: efm
Stove/Furnace Model: s-20

Re: EFM 25 pressure cold.

PostBy: shapechanger On: Tue Sep 24, 2013 9:05 pm

We use rice coal. We replaced the flow valve. Gauge isn't bad because if I drain some water it goes to 15 but fills back up to 28 psi.
shapechanger
 
Stove/Furnace Make: EFM 52-
Stove/Furnace Model: 520

Re: EFM 25 pressure cold.

PostBy: shapechanger On: Tue Sep 24, 2013 9:06 pm

What is a make up valve?? Different from flow valve ?
shapechanger
 
Stove/Furnace Make: EFM 52-
Stove/Furnace Model: 520

Re: EFM 25 pressure cold.

PostBy: whistlenut On: Tue Sep 24, 2013 10:20 pm

Kinda the same thing, Pressure reduction fill valve,,,preset at 12 psi and usually has a small lever for 'fast fill mode'. The seat could be by-passing slightly, and the other is mentioned above: Domestic coil has developed a small leak, and it sees 'City Pressure' in both coil ports/ make-up, so there is a possible route to get more pressure into the boiler.
Remember that boiler vessel water mixing with domestic is NOT COOL! Like drinking out of a toilet....... :idea: :!:

There are lengthy discussions about this type of issue all over this forum, so feel free to do a search. :idea:
whistlenut
 
Stoker Coal Boiler: AA130's,260's, AHS130&260's,EFM900,GJ&VanWert
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Hot Air Coal Stoker Furnace: Yellow Flame
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Hand Fed Coal Furnace: Van Wert, NYer's, Ford,Jensen.
Coal Size/Type: Rice,Buck,Pea,Nut&Stove
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Re: EFM 25 pressure cold.

PostBy: Sting On: Tue Sep 24, 2013 11:03 pm

3 psi at the highest point in the system is all the pressure you need

if you have 3 psi at the top - Honey Boo Boo don't care if you have 6 12 or 22 at the bottom

but you have to have at least 3 PSI at the highest point of a closed wet system
the weight of the liquid below that 3 psi point - will determine what the system pressure at the boiler is while at rest or at work

fix your auto fill valve or valve it off- and adjust your pressure manually
Sting
 
Other Heating: BurnHAM=NG-gas

Re: EFM 25 pressure cold.

PostBy: shapechanger On: Wed Sep 25, 2013 7:26 am

I don't have my hot water hooked into the system. Would the domestic coil still be the problem? Seems since we replaced the valve it has gotten worse. Does it matter if the pressure reducing valve is on the supply our return. Ours is on the return
shapechanger
 
Stove/Furnace Make: EFM 52-
Stove/Furnace Model: 520

Re: EFM 25 pressure cold.

PostBy: waldo lemieux On: Wed Sep 25, 2013 7:57 am

Make up water should go in at air separator and expansion tank,but itll work elsewhere. But it seems thats the problem.
waldo lemieux
 
Stove/Furnace Make: efm
Stove/Furnace Model: s-20

Re: EFM 25 pressure cold.

PostBy: GoodProphets On: Wed Sep 25, 2013 8:27 am

I am sorta having the same problem.
I can pressure relief down to 10 psi, and then it will just rise and blow off repeatedly.

Had installer replace the auto fill valve and now we are testing the DHW coil.

We shut off the valve that connects the autofill to the boiler.
Pressure is holding steady.

Looks like it could be our town water pressure may be too high, and is actually pushing past the 12psi so it
keeps building up .... unsure just yet.
Still in testing mode (2 days in)

But I am not dropping pressure, so I hope that means the coil is still good and no leak.

Best way to check to see what happens is to close in valve that connects the fresh water off to the boiler.
Release pressure from the top relief valve down to 10-15 psi and then see what happens.

Are you heating now?
Let us know what exp tank you have and the size of your house.
You have a 520 stoker?
GoodProphets
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Anthra Rice
Other Heating: 3 Fireplaces

Re: EFM 25 pressure cold.

PostBy: shapechanger On: Wed Sep 25, 2013 12:13 pm

Yes it's a 520 if we shut the water of from the well and drain a bit out will stay at 10 to 15 psi. As soon as we turn it on back up to 28 30 psi. Going to replace the pressure valve this weekend. We are not heating I am afraid to light it. The system worked fine for 6 years now after getting a new tank and valve the pressure is too high.
shapechanger
 
Stove/Furnace Make: EFM 52-
Stove/Furnace Model: 520

Re: EFM 25 pressure cold.

PostBy: shapechanger On: Wed Sep 25, 2013 12:16 pm

Oh the tank is a water worker 5 gallon. Also its three story house 3000 square-foot
shapechanger
 
Stove/Furnace Make: EFM 52-
Stove/Furnace Model: 520

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