Amtrol Quad Check

Tom M.

Can anybody tell me how an Amtrol Quad Check operates? I was on a job where there were two of them which appeared to be manually open. I assumed that they operate in the same manner as a Taco Flowcheck but apparently they don't. After turning the knob down, there was no flow so I opened them back up and now the 2nd floor overheats.

Is there an operating range somewhere in the middle? Does the pointer on the knob have to point in a certain direction? There is no info on Amtrol's wesite, apparently no longer made.

Any help would be appreciated.

Tom M.

heatboy

From fully closed......

turn the knob out 4 turns. That is the normal operating position. All the way down locks the wight down. Nice design, but I have had more than a couple leak through over the years.

hb

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Tom M.

Thank You

Thanks for the help and have a good weekend.

Tom M.