Yard Vacuum User Manual

3
(No Flow Condition)
FIGURE 5
Double Check Detector Assembly (DCDA)
The DCDA device consists of a mainline DCV and a by-pass assembly consisting of an approved DCV assembly
and water meter. Each device is equipped with test cocks for periodic field testing and is normally supplied with
inlet and outlet shut-off valves. For information on operation, installation, trouble shooting & testing refer to
Installation Instruction Booklet I476700 furnished with each DCDA unit. For maintenance instructions see pages
4 - 6. For parts list see pages 21 - 24.
(No Flow Condition)
FIGURE 4
40 - 10X - T2
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