DFA400 Rev150730
12
Saddle Clamp Installation
Note: Ensure that the mounting location meets the requirements for uniform
water ow. (Refer to Flow Sensor Location Guide.)
Note: Ensure that there is enough room for the saddle clamp, sensor, and connector
to t. (Refer to Figure 4.)
1. Drill and deburr a 1 11/16" to 1 3/4" diameter hole at mounting location.
2. Clean pipe surface in area where saddle clamp gasket seals.
Note: The sensor housing is epoxied in the saddle clamp with the alignment
tab in the correct position. It is not meant to be removed.
3. Place saddle clamp over hole with sensor housing centered.
4. Tighten saddle clamp nuts until gasket makes a tight seal.
5. Insert ow sensor into sensor housing. Align at spot on sensor rim with
alignment tab and make sure O-ring is in groove.
Note: The retainer cap is hand-tightened. There is an inside lip that stops
the cap from turning when it makes contact with the alignment tab. This
provides the correct pressure to make the seal at the O-ring. Make sure
the ow sensor engages the alignment tab and does not rotate.
6. Install retainer cap and hand-tighten.
7. Connect cable from display module to ow sensor (cable is color coded blue).
(Refer to Wiring Section.)
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