Hydrotech 89BM-100, Инструкция по установке и эксплуатации

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It is also recommended to install the inlet and outlet pressure gauge and the inlet Y-type fil-
ter
；
When the two knobs on the bypass valve is parallel, the inlet and outlet are open, this state
of operation is “Service”
；
Rotate each of the two knobs in clockwise and anticlockwise respectively, when the knobs
on the bypass is in one line, the inlet and outlet are both closed, this state of operation
is “By-pass”.
The two small quick connector at the two sides are the sample connection for inlet and out-
let, choose the right elbow connector for taking water samples.