3. Flowmeter location: Flow meters are installed between the master valve and zone
valves. To avoid false alerts, there should be no water taps or other uncontrolled water use
on the downstream side of the flow meter. If all solenoids connected to the controller are
not grouped together, it may be necessary to install more than one flow meter. For proper
installation and optimal water flow, use the chart below when determining pipe length. The
pipe bringing water into the flow meter needs to be 10 times longer than the width of the
pipe. The pipe carrying water away from the meter needs to be 5 times the width of the
pipe.
4. Cable (shielded direct-burial cable must be used): Two-wire cable is required. The
cable gauge is determined by the total length of cable between the controller and the flow
meter. The cable should consist of 2 dedicated wires and must not be in the same conduit
or cable bunch as the solenoid wires. Do not share the common wire of the solenoids with
the common of the sensors. If desired, the flex cable can be used to run inside the conduit.
That flex cable measures ¼” BSP, which also fits ¼” NPT.
IMPORTANT: Shielded direct-burial cable is commonly available. Manufacturers include
Paige Electric and Regency Wire.
The following instructions assume you have already
installed your Hydrawise controller
1. Flowmeter body: The flow meter has a marking on the body indicating the direction of
water flow. Installation of the flow meter must be in the correct orientation with water
flowing in the direction of the arrow on the flow meter body. All HC Flow Meters must be
installed horizontally with the dial facing upward.
