Halton Capture Ray KVE-UV Operator's Manual page 13

using the negative connection on the manometer, leaving the positive port of the manometer open
to atmosphere. The Capture Jet static pressure is measured using the positive connection on
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the manometer, leaving the negative port of the manometer open to atmosphere. Adjustment
to the static pressure of the exhaust plenum is made by adjusting the speed of the exhaust fan.
Adjustment to the Capture Jet fan is made inside the inner front of the hood at the Capture Jet
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speed controller. See procedure below if Capture Jet fan adjustment is necessary.
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**It is very important that the fan for the Capture Jet air be balanced according to
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specifications.
See the job specific information for required airflows. The Capture Jet fan is adjusted at the factory
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for proper airflow. Check the static pressure of the Capture Jet plenum and adjust the Capture Jet
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fan speed only if the pressure reading is different than the T.A.B. port pressure specified on the job
specific submittal drawings (measured reading outside of plus or minus 0.05" w.c.). Adjustments
to the Capture Jet fan can be made with the speed controller supplied with the fan. This speed
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controller will be mounted inside the Capture Jet plenum, the adjustment control knob can be
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accessed by removing the chrome button cover in the center of the Capture Jet fan access cover.
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The speed controller is adjusted using a small flathead screwdriver, turning the control clockwise to
decrease the speed of the Capture Jet fan, and turning the control counterclockwise to increase
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the speed. Very small movements of the control will result in appreciable static pressure changes
to the Capture Jet plenum. Monitor the manometer connected to the T.A.B. port of the Capture
Jet plenum as adjustments are made. After each adjustment allow the pressure to stabilize before
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adjusting further.
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Capture Ray UV Operation & Maintenance Manual
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