I wish to add a 3 port mid position valve to my open vented central heating system.
In the instructions I have read, it says that the boiler must have unrestricted access to the vent pipe.
Can someone please tell me if it is okay to install a new length of pipe Tee-ing off the supply pipe before the pump and tee-ing into the vent pipe above the cylinder supply. (i.e. red line on diagram) Could there be any unintended consquences of doing this.
Would it be acceptable to simply put a pipe around the pump and 3 port valve with a non return valve to stop any unwanted recirculation. (i.e. blue line) This would require a much shorter pipe run.
pipe.
In the instructions I have read, it says that the boiler must have unrestricted access to the vent pipe.
Can someone please tell me if it is okay to install a new length of pipe Tee-ing off the supply pipe before the pump and tee-ing into the vent pipe above the cylinder supply. (i.e. red line on diagram) Could there be any unintended consquences of doing this.
Would it be acceptable to simply put a pipe around the pump and 3 port valve with a non return valve to stop any unwanted recirculation. (i.e. blue line) This would require a much shorter pipe run.
pipe.