Physical Installation
Risk of bodily injury, property damage, or damage to system by pressurized
fluids.
•
A pressure relief valve rated to handle full pump flow at 100 psi (6.9 bar) should be installed in the
system to prevent personal injury or property damage.
Risk of damage to pump or other property.
•
A missing, improperly installed, or malfunctioning check valve can cause a pump to short-cycle due
to back-flow of the pumped fluid from the discharge plumbing back into the basin, significantly
shortening the life of the pump.
NOTE: Refer to
"Typical Installation" on page
1.
Disconnect electrical power at the main breaker.
2. Close all water supply valves necessary to turn off the incoming water supply.
3. Carefully drain the existing plumbing system of all water.
4. Mount the system using mounting screws.
•
The system may be installed in any orientation.
5. Install inlet plumbing to the unit.
•
Install a check valve in the inlet plumbing when no other backflow prevention device is present.
•
If a bypass loop is used in the plumbing, install the check valve before it.
•
It is recommended to supply the system with inlet line ¾-inch diameter or larger.
NOTE: It is recommended that all system check valves are spring-loaded.
6. Connect the piping.
•
Keep the suction and discharge lines as large as possible.
•
Avoid using bends, elbows, and fittings whenever possible.
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Ensure all suction connections are airtight.
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Use pipe joint compound or PTFE tape at all threaded connections.
•
Use a suction strainer when applicable to prevent solids and foreign matter from being drawn into
the pump.
7.
Install a check valve in the outlet plumbing between the pump and pressure tank.
8. Add a small pressure tank on the pump outlet to maintain constant pressure.
NOTE: The tank supplies water while the pump ramps up to speed and when only a small amount of
water is required for a short period of time. Tanks prevent water hammer and prevent pressure spikes
when there is a sudden change in demand.
9. Install a shut-off valve in the plumbing near the discharge of the pump.
10. Install the pressure sensors at the pressure tank tee downstream of the pressure tank.
•
The pressure sensor has a 1/4-18 NPT connection.
•
Install the pressure sensor in an inverted orientation (upside down).
•
Mount the pressure sensor in a vertical position.
•
Make sure the pressure sensor and tank are not located more than 5 feet off the main piping.
11. Install a pressure relief valve downstream of the check valve, near the pressure tank.
•
Plumb this discharge to a drain rated for maximum pump output at relief pressure settings.
6.
INSTALLATION
Physical Installation
7