Taco Flo-Chek 219-4 valve and circulator

[tomeagle]

Hi,

I have a Taco circulator 007-F5 connected with a Taco Flo-Chek valve 219-4 on a furnace which supplies both heat and hot water. Now even without the heating zone calling for heat the hot water still flows through the circulator and the valve. The Flo-Chek valve is mounted horizontally. Another heating zone with similar setup works. Which part could be broken? The valve or the circulator?

Thanks for help!

Regards,

Tom

 

[frodo]

can you give a little more detail as to the piping configuration of your system.


most systems only 1 taco pump is used,,

the thermostat should tell the zone valve to open or close,



sounds like the ck valve is stuck open or installed backwards

 

[johnjh2o]

If zone valves are being used then there is no reason to have a flow check, if not then the flow check has failed.

 

[tomeagle]

Thanks for reply. There is no zone valve. The diagram is attached.

Regards,

Tom