9.4.11 Install COe Sensor Assembly
Figure 9-19 Band Heater Height
1. Apply pipe thread sealant (Loctite #567) to the exposed pipe threads
of eductor elbow (12, Figure 9-17). Do not apply sealant to the first turn of the pipe
threads.
2. Screw sensor holder (11) onto eductor elbow (12).
3. With wrenches on eductor elbow (12) and on flats of sensor holder (11), tighten sensor
holder. Do not allow eductor elbow to turn.
4. Tighten sensor holder (11) to align outside flat with matchmark on sensor housing
flange, as shown in Figure 9-20.
The heater insulator prevents current leakage between the band heater and the sensor
holder. Failure to properly install the insulator may cause the device to trip a ground fault
interrupt circuit.
5. Wrap heater insulator (9) around sensor holder (11). Make sure the insulator joint lines
up with the band gap of the COe band heater (10).
6. Slide COe band heater (10, Figure 9-17) up onto sensor holder (11). Do not tighten the
band heater at this time. Heater must rotate freely around sensor holder.
7. Check for proper height of COe heater thermocouple (Figure 9-16). Thread bayonet
connector up or down to adjust height.
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