User Guide

Caleffi North America, Inc.
3883 W. Milwaukee Road
Milwaukee, WI 53208
T: 414.238.2360 F: 414.238.2366
8
Leave this manual at the service of users for their use
08-12-16
Troubleshooting
System failures are not always caused by the
pressure reducing valve. Most frequently:
1. Increased downstream pressure in the
presence of a water heater
If the downstream pressure increases
beyond the desired setting due to
an inline water heater, install an
expansion tank between the pressure
reducing valve and the water heater to
absorb the increased pressure, caused
by water expansion from heating.
2.The pressure reducing valve does not
maintain downstream setting value
If the pressure reducing valve
does not maintain the downstream
setting, it most likely is due to impurities acccumulating on the valve seat,
causing unnecessary flow to pass-through, increasing the downstream
pressure. Proper maintenance and cleaning of the removable cartridge is recommended.