hi there ,, are the pumps wired to run all the time ? and the boiler cycles on the thermostat or ? then we can go from there
You would be surprised, Those old one way check valves seem to hold up good over time. At least the ones I have seen have.jmon;1070638 said:I have 2 very old flow control valves on the supply side, one on each zone, (going out to the baseboard registers) of the boiler, they have been there since the original boiler of 1953. They were never replaced when current boiler was installed, and they are very crusted and I seriously doubt they work correctly anymore. (see pics)
As was said in another post, you can remove them if you suspect they are causing problems.jmon;1070638 said:I recently replaced both zone circulators with the taco 007-f5-IFC which are installed on the return side (coming back to boiler). Which are equipped with flow control and according to instruction sheet are supposed to do basically the same thing those separate flow control valves do. Additionally, instructions say these circulators equiped with IFC, eliminate the need for seperate flow control valves. (see pics)
I am sure you just did a typo here, they are not zone valves. The way your system is set up the pumps control your zones. As long as the pumps have flow control in them then they are just redundant. If the pumps did not have them then I would suggest replacing themShould I replace those old separate zone control valves with new ones? Or can I just remove them altogether and replace them with straight pipe now that I have the new 007-f5 with integral flow control? or should I just leave them alone and wait until they leak or I get no heat in the house? They are ancient. What would you do? What are my options?
good advice or recommendation from an experience hvac technician would be greatly appreciated. thanks in advance.