Hi guys,
Could someone please clarify for me is an automatic bypass required if installing a 3 port valve? I am under the impression that it does not as 1 valve is always open. Or does it depend on the requirement of the boiler manufactures instructions?
Thanks.
Could someone please clarify for me is an automatic bypass required if installing a 3 port valve? I am under the impression that it does not as 1 valve is always open. Or does it depend on the requirement of the boiler manufactures instructions?
Thanks.