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September 08, 2026 6 min read
Complete owner's manual and installation guide for the DynaQuip WaterCop Z-Wave emergency water shut-off valve system.
Owner's manual and installation guide for the DynaQuip WaterCop Z-Wave Emergency Water Shut-Off — a Z-Wave enabled motorized valve that automatically shuts off a home's main water supply when a wireless leak sensor detects water.
WaterCop Z-Wave is a professional-grade, electrically operated water shut-off valve. Used in a Z-Wave home automation network with Z-Wave water alarm sensors, it helps reduce or eliminate water damage from leaky pipes or faulty appliances, operating 24/7. The system has two basic components:
A full Z-Wave system (WaterCop + sensors + Z-Wave Gateway Controller) can send email, text, or phone alerts on a leak or overflow event, and be remotely operated over the internet or phone.
| Valve Sizes / Flow (GPM @ 1 PSI drop) | ½" – 19 GPM, ¾" – 34 GPM, 1" – 52 GPM, 1¼" – 77 GPM |
| Valve Construction | Full-port lead-free brass ball valve; RTFE seats; Viton seals |
| Max Working Pressure | 125 PSIG |
| Ambient Temperature | 35° to 105° F (cold water applications only) |
| Enclosure | Polycarbonate, NEMA 4x (weather resistant) |
| Voltage | 110 VAC converted to 12 VDC (Class 2 power converter, 20' cord), 0.85A full load |
Three indicator lights show status: Red = valve closed, Green = valve open, Yellow (on/flashing) = error or not yet programmed into a Z-Wave network. Three panel-mount tactile switches manually activate/program the valve.
Test the unit before installation: place the housing on a sturdy surface near its intended location, plug the power adapter into a 110 VAC outlet. Within 10 seconds the status light will start blinking. Press the button opposite the unlit indicator light to cycle the valve, and verify the valve position visually through the threaded end (open = see through; closed = only the ball's shiny surface visible). Caution: keep fingers and objects away from the valve opening while testing — it closes with enough force to cut off a finger.
| Mode | Blinks | Notes |
|---|---|---|
| Automatic Network Wide Inclusion (NWI) | 1 | Default at initial power-on, active ~30 min or until manually exited (not available on all versions) |
| In-Network (Water Alarm or Water Level mode) | 2 | Only shown at power-on or after inclusion |
| Out-of-Network / Water Level mode | 3 | — |
| Out-of-Network / Water Alarm mode | 4 | Default mode at initial power-on |
Automatic (NWI) mode: allows automatic inclusion into an existing Z-Wave network with a controller that supports NWI. NWI stops after automatic inclusion, a 30-minute timeout, or when the Program Button is pressed.
Manual inclusion: put your Z-Wave Controller into Inclusion Mode; once the Status Light is flashing periodically (3 or 4 times), press the Program Button once. The controller confirms inclusion and the Status Light stops flashing.
Exclusion: put the controller into Exclusion Mode, then press the Program Button once. Inclusion and exclusion are always done at Normal Transit Power Mode.
Association with water sensors: once in a network, a smart controller can associate water sensors directly with the WaterCop, letting a sensor trigger the valve without going through the controller. When associated, WaterCop receives a Basic Set command (value 0xFF) to close the valve on a Water Alarm.
The system will not operate without power. In an emergency, turn the handle at the side of the actuator a full 90 degrees to manually open or close the valve. Failure to turn it the full 90 degrees can cause miscommunication within the Z-Wave environment.
| Command Class | Function |
|---|---|
| COMMAND_CLASS_BASIC | Get returns last known ball valve position; Set (0xFF) from an associated sensor closes the valve. |
| COMMAND_CLASS_SWITCH_BINARY | Set (0xFF) closes the valve, Set (0x00) opens it; Get returns last known position. |
| COMMAND_CLASS_MANUFACTURER_SPECIFIC | Returns Manufacturer ID (0x0084) and Product Type ID (0x0213). |
| COMMAND_CLASS_VERSION | Returns product and command class version info. |
| COMMAND_CLASS_ALARM | Power Management Alarm (0x08): Voltage Drop/Drift (0x05), Power Applied (0x01). |
| COMMAND_CLASS_APPLICATION_STATUS | Signals other devices when the valve is busy or has rejected a request ("Application Busy — Try Again Later"). |
Contains Transmitter Module FCC ID: XCT-Z3US. Complies with FCC Part 15 (USA) and RSS-GEN/RSP-100 (Canada, IC: 8156A-Z3X).
| Fault | Blinks | Remedy |
|---|---|---|
| Main Power Dropout | 2 | Check main AC power |
| Motor Jammed/Timeout Error | 3 | Ensure nothing is blocking the ball valve; cycle power |
| Communication (I2C) Error | 4 | Cycle power |
| ADC Error | 5 | Cycle power |
| Time Error | 6 | Cycle power |
| State Error | 7 | Cycle power |
| Unknown Error | 8 | Cycle power |
The WaterCop should be installed indoors, in the main water line, just downstream from the main shut-off valve, in a dry, accessible location protected from use as a step or excessive loads. It cannot bear weight and should never be used as a step or leverage point.
Solder fittings are an alternative for skilled installers, but require higher skill and are recommended to be done by a professional plumber. Remove the plastic housing before soldering, and take precautions to prevent heat damage to valve seats or the motor housing.
Each WaterCop supports multiple Water Alarm Sensors (a Z-Wave network can have up to 232 nodes). Suggested locations: washing machines, toilets, sump pumps, dishwashers, bathroom/kitchen sinks, automatic humidifiers, ice makers/refrigerators, water heaters, and pipes prone to freezing (the ZWCFS1 sensor also works as a freeze alarm sensor).
It's recommended to manually cycle the valve (open-close-open) once every 3–4 months. To test: drop a sensor probe into a cup of water and hold until it signals the WaterCop (~5 sec); verify the valve closes (red light). Dry the probe, then reset by pressing the green "Open" circle. Repeat for each sensor/location.
During a power failure without a backup battery, the WaterCop cannot operate — use the manual shut-off valve upstream. Close the main shut-off and unplug the WaterCop before making plumbing repairs.
If the WaterCop shuts off the main supply and then becomes inoperable (power outage or damage), unplug it and manually turn the side handle a full 90 degrees to open or close the valve, restoring water service.
DynaQuip Controls warrants the electrical components against defects in material and workmanship for two years from date of purchase, under normal use and proper installation. The brass ball valve carries a 5-year warranty. This is the sole remedy of the purchaser; DynaQuip is not liable for special or consequential damages. Visit watercop.com or call 800-545-3636 for warranty information.
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