Hi ,in your experience which is the better product.My company uses mcdonnell miller but i was told they dont have a fail safe whereas the vxt does.in all dans books i have never heard him mention hydrolevel controls.
Mcdonnell miller PS800 series does have a safety fault feature just like the vxt. Its not as programmeable as the VXT, but all PS800 models have it. I like the VXT cause they are much more programeable and have a digital water meter display on some models. Very nice feature.
thanks for the info.I always thought the mc donnell miller had a fail safe but a heating consultant in my supply house told me different.I tried their website but couldnt find a definite answer.Thanks again