Manualshelf

Product Overview

ManualsBrandsCleveland Controls ManualsAir Pressure Switch Replacement Parts4" Total Pressure Probe
12
RECOMMENDED PROBE LOCATIONS:
1. Position 5 to 8 diameters downstream from elbows, ob-
structions, or significant change in duct area.
2. Insert probe into duct perdendicular to airstream so that:
• Aspiration (static) probe tip opens parallel with airstream.
• Impact (total pressure) probe tip opens directly into the airstream.
TYPICAL APPLICATIONS (SEE FIGS. 1-6):
1. Positive static pressure increases as the filter gets dirty.
2. Differential across filter changes as filter gets dirty.
3. Flow is reduced as filter gets dirty.
4. Fan operation or true air flow with little or no static pressure.
5. Negative pressure increases as the filter gets dirty.
6. Fan operation and true air flow: varying amounts of static
pressure. Probes must be perpendicular to air flow.