Controls for Circulating pump


  #1  
Old 05-28-14, 08:04 AM
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Controls for Circulating pump

Hi,
My circulating pump for room heat comes on when my boilermate calls for heat. The boilermate circ. pump comes on as well but now that summer is here I don't want my house getting hot. I have a Aquastat relay Honeywell "L8148A" and both low voltage wires (Thermostat house & boilermate) are hooked up to "TT" terminal. I also have a Honeywell "R845A" for a third circ. pump which is used only in the dead of winter. Right now I pull the wire off circ #1 terminal so the house won't heat up. I believe that the boiler was first set up for "cold start" boiler.
Thank,
Derick
 
  #2  
Old 05-28-14, 10:18 AM
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Is your stat just a heat only stat?
 
  #3  
Old 06-03-14, 05:30 PM
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Looks like you will need another R845A relay to break the other zone off from the boilermate,wire it up just like the other R845A relay you use for extreme cold .
Geo
 
 

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