Transcript
AIR FILTER GAUGE
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INSTALL CLEAN FILTER, RUN BLOWER AND ADJUST GAUGE POINTER TO CLEAR AREA IN CENTER OF GREEN
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Indoor Air Quality Products
MODEL 169000 AIR FILTER GAUGE
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INSTALLATION INSTRUCTIONS
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APPLICATION The 169000 Air Filter Gauge provides a visual indication of the need to replace the air filters in forced air heating and cooling systems. The gauge is installed between the blower and the filter where a slight vacuum exists due to the air flow resistance of the air filter. Air flowing into the gauge, around the calibration screw, lifts a vane in proportion to the negative pressure in the blower compartment. As the air filter loads, the vacuum increases, raising the vane to indicate a filter change is necessary. The gauge may be calibrated in a negative pressure range from 0.1 to 0.4 inch w.c. When properly calibrated in this range a vacuum increase of 0.10 to 0.15 inch w.c. will indicate a filter change is necessary.
PRECAUTIONS The installer should be an experienced service technician. When drilling the hole in the blower compartment extreme care should be taken not to damage components within the heating or cooling system.
RETURN AIR
INSTALLATION (Figure 1) 1. The gauge must be located where it can sense pressure conditions in the blower compartment between the filter and the blower. Select a location on a vertical surface enclosing the blower compartment and drill a 3/8" hole. 2. Remove the protective paper from the foam adhesive strip on the back of the gauge. 3. Mount the gauge in a level position with the pressure sensing tube projecting into the blower compartment.
GAUGE AIR FILTER GAGE
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INSTALL CLEAN FILTE R, RUN BLOWER AND ADJUST GAGE POINTER TO CLEAR AREA IN CE NTE R OF GRE E N
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AIR FILTER
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4. See “CALIBRATION”.
OPTIONAL REMOTE INSTALLATION (Figure 2)
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FIELD SUPPLIED: One (1) piece of 5/16” (inside diameter) vinyl tubing up to 10 feet in length, and three (3) #4-24 x 1” screws. 1. Select a location on the blower compartment between the air filter and the blower and drill a 7/16" diameter hole. Insert one end of the vinyl tubing about 2" into the hole. 2. On a wall, enclosing the furnace room for example, mark a position where the filter gauge can be easily seen and is within reach of the vinyl tube. 3. Drill a 1/2" diameter hole through the wall and feed the vinyl tube through the hole. Keep overall length of tubing used as short as possible. 4. Push the three plastic retainer clips out from the back of the gauge with a blunt tool. They will be replaced with the three #4-24 x 1" screws included. 5. Push the vinyl tubing over the pressure sensing tube of the gauge and move the gauge back against the wall in a level position. Drill three 3/32" diameter holes through the gauge holes. Drive the three screws to hold the gauge in place. Do not overtighten. 6. See “CALIBRATION”.
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CALIBRATION
AIR FILTER GAUGE
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INSTALL CLEAN FILTER, RUN BLOWER AND ADJUST GAUGE POINTER TO CLEAR AREA IN CENTER OF GREEN
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Install a clean filter and run blower on highest speed. With a small screwdriver adjust the calibration screw, on the face of the gauge, to put the pointer in the clear area in the center of the green "FILTER IS CLEAN" range.
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U.S. PAT. 6190442
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OPERATION AIR FILTER GAUGE
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INSTALL CLEAN FILTER, RUN BLOWER AND ADJUST GAUGE POINTER TO CLEAR AREA IN CENTER OF GREEN
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As the air filter begins to clog the pointer will move up in the gauge. When the pointer moves into the red "CHANGE FILTER" range a clean filter should be installed.
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U.S. PAT. 6190442
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SERVICE The gauge may be disassembled for service although this should rarely be required since it contains a small filter screen to stop dust from entering the area of the vane. Remove gauge and, from the back, push white plastic clips out with a blunt tool. Remove calibration screw, lift off clear cover and dust all parts with a clean brush. Reassemble and test that the vane moves freely in the gauge. A fresh adhesive strip may be required to reinstall.
U.S. PAT. 6190442
EXPLODED VIEW GAUGE COVER
GAUGE HOUSING
PIN RETAINER CLIP E
AIR FILTER GAUG
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INSTALL CLEAN FILTER, RUN BLOWER AND ADJUST GAUGE
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POINTER TO
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CLEAR AREA IN CENTER
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OF GREEN
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CALIBRATION SCREW
FILTER SCREEN VANE
DIAL PLATE FOAM ADHESIVE STRIP - NOT SHOWN
Braeburn Systems LLC 2215 Cornell Avenue • Montgomery, IL 60538 Technical Assistance: www.braeburnonline.com Call us toll-free: 866-268-5599 (U.S.) 630-844-1968 (Outside the U.S.) ©2010 Braeburn Systems LLC • All Rights Reserved • 169000-100-001
