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ECS Oxygen Removal Vent - PAV-D/DQ & PSV-D/DE
Maintenance Instructions
1. PAV-D/DQ Vent - The Standard Vents must be inspected annually at minimum. While isolation
ball valve is in the open position, check for air/water leaks and ensure the pressure gauge is
displaying normal system pressure.
2. PSV-D/DE Vent - The SMART Vents must be inspected annually at minimum. While isolation ball
valve is in the open position and the “Vent” button is illuminated, check for air/water leaks and
ensure the pressure gauge is displaying normal system pressure.
3. PAV-D/DQ & PSV-D/DE Vents - While isolation ball valve is in the closed position the inspection
must include the condition of the in-line filter to protect against blockage of the restricted venting
orifice. Depressurize the in-line filter housing by pressing the pressure relief valve on the bottom
of the housing. Twist the filter housing counter-clockwise until it can be removed to expose the
filter element.
4. PAV-D/DQ & PSV-D/DE Vents - The filter element in the in-line filter should be replaced if a visual
inspection reveals a significant collection of debris.
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. 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.
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