FIGURE 1 - In-Line Filter
April 2020 - Rev 2
3
ECS PROTECTOR
MANUAL VENT
PAV-D
Engineered Corrosion Solutions • 11336 Lackland Road St. Louis, MO 63146 • Phone: 314.432.1377 • www.ecscorrosion.com
Pressure Relief Valve
Filter Housing
Filter
In-Line Filter Replacement Instructions
1. Close the isolation ball valve.
2. Depressurize the housing by pressing the pressure relief valve on the bottom of the in-line filter housing.
3. Remove the lower section of the in-line filter housing by turning the filter housing counterclockwise.
NOTE:
A rubber o-ring/seal is located between the upper and lower sections of the filter housing.
4. Remove the old filter by turning the filter counterclockwise.
5. Replace with new filter (PV-DRF-Black Housing, PV-DRF2-Clear Housing). The filter is secured to the housing
by turning the filter clockwise.
NOTE:
Ensure the filter is secured only finger/hand tight.
6. Install the rubber o-ring/seal on the lower section of the filter housing.
7. Re-install the filter housing by turning the filter housing clockwise.
NOTE:
Ensure the filter housing is secured only finger/hand tight.
8. Open the isolation ball valve.
Maintenance Instructions
1. The ECS Protector Manual Vent must be inspected annually at minimum. While the isolation ball valve is in the
open position check for air/water leaks and ensure the pressure gauge is displaying normal system pressure.
2. While isolation ball valve is in closed position inspection must include the condition of the inline filter and for
blockage in the “Y” strainer and restricted venting orifice. Twist the filter housing clockwise until it can be removed
to expose the filter element.
3. The filter element in the in-line filter should be replaced if a visual inspection reveals a significant collection of
debris.