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T-365
7–38
CAUTION
!
Do not allow moisture to enter wire splice area as this may affect sensor resistance.
12.Slide large heat shrink tubing over both splices and shrink.
13.Position sensor in unit as shown in
and re-check sensor resistance:
- Return Sensor Positioning
- Supply Sensor Positioning
- ETS Sensor Positioning
14.Reinstall sensor, refer to:
- STS and SRS Re-Installation
- RRS and RTS Re-Installation
- DTS Re-Installation
- ETS1 and ETS2 Re-Installation
NOTICE
The P5 Pre-Trip test must be run to deactivate probe alarms (refer to
).
7.25.3
Sensors STS and SRS Re-Installation
To properly position a unit supply sensor (Supply Temperature Sensor STS or Supply Recorder Sensor SRS),
the sensor must be fully inserted into the probe holder. This positioning will give the sensor the optimum amount of
exposure to the supply air stream, and will allow the Controller to operate correctly. Insufficient probe insertion into
the probe holder will result in poor temperature control due to the lack of air flow over the sensor.
It is also necessary to ensure that the probe tip does not contact the back panel. The design minimum clearance of
6 mm (1/4 inch) should be maintained (see
).
Figure 7.24 Supply Sensor Positioning
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Summary of Contents for 69NT40-561-300
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