Great help you guys yesterday, checked motorised valve and the valve has sheared. just a quick question. what is the difference between a drayton MA1 679 - 3 3 port motorised valve and a drayton mid position valve actuator ??
As you can tell iam not a heating engineer, so sorry if this is a silly question.
Thanks
As you can tell iam not a heating engineer, so sorry if this is a silly question.
Thanks