3150 hydrostat

3150 hydrostat

PostBy: bubba On: Wed Jan 15, 2014 10:22 pm

can someone explain how high limit with differential and low limit with differential are set on efm 520 with hydrostat 3150
Last edited by Wood'nCoal on Wed Jan 15, 2014 10:40 pm, edited 1 time in total.
Reason: Moved to "Controls" heading.
bubba
 

Re: 3150 hydrostat

PostBy: Rob R. On: Thu Jan 16, 2014 6:17 am

EFM recommends the following:

Low limit: 160
Low differential: 10
High limit: 200

If you aren't using a tankless coil, you can drop the low limit to 140. Timer should be set for 2 minutes every half hour and hooked to the ZR terminal in the aquastat.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Dad's 1953 EFM Highboy

Re: 3150 hydrostat

PostBy: bubba On: Thu Jan 16, 2014 10:17 am

thanks ROB The high differential does not get used . Is that correct.
bubba
 


Re: 3150 hydrostat

PostBy: Rob R. On: Thu Jan 16, 2014 10:23 am

The high differential is fixed at 10 degrees.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Dad's 1953 EFM Highboy