Waterous AQUIS ULTRAFLOW Installation, Operation And Maintenance Manual page 206

Safety Introduction
Enabling and Disabling a Discharge—System View
5
Product Overview
3
1
Installation Operation
4
2
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206 217
Maintenance Troubleshooting
Use the illustration and instructions to understand
the system activity when you enable a DLA. Keep in
mind that an enabled DLA is only active when the
associated line is flowing water.
Note: For instructional purposes, this illustration
only focuses on the specific activity in the
system that best conveys the topic.
1 The fire pump flows water into the discharge.
2 The enabled DLA measures the water flow in
the discharge.
3 The concentrate pump activates.
4 The magnetic flowmeter measures the amount
concentrate flowing in the DLA, while the valve
meters the concentrate proportioned into the
discharge to produce the selected solution.
5 The concentrate source is selected by the
concentrate-source valve. The valve switches
between an on-board or off-board concentrate
source. The valve position is provided to the
system—which allows or prohibits certain
function.