Replacing The Sensor - Johnson Controls RLD-H10G Manual

M
aintenance
Replacing the Filter and Airflow Indicator
To protect the air pump from damage due to foreign
particles and moisture, replace the filter as it becomes
dirty. With moderate use (15-30 minutes per day),
replacing the filter once a month is recommended. In
dirty environments or with heavy use, replace the filter
more frequently. Replace the filter whenever it is
visibly dirty or wet.
Replacing the Filter
1. Remove the black rubber probe tip.
2. Pick out the filter with a pin or tweezers. A fine
screen will remain in the tip of the probe.
3. Insert the new filter in the probe end.
(See Figure 10.) Make sure that the filter is
firmly seated against the fine screen.
4. Replace the rubber probe tip.
Replacing Airflow Indicator
1. Remove the clear plastic section of the probe by
gently pulling on the white rubber grip.
(See Figure 10.)
2. Turn the probe upside-down and tap on it to
remove the old airflow indicator ball.
3. Insert the new airflow indicator ball into the probe.
4. Reattach the probe end to the hose.
Figure 10: Replacing the Filter and Airflow Indicator

Replacing the Sensor

The sensor is a plug-in unit that is thrown away when
expended. It needs replacement when the RLD-H10G
no longer responds to the leak vial, even with the
sensor heat control turned fully clockwise. (Make sure
the leak vial contains some refrigerant.)
!
CAUTION: Personal Injury Hazard. Sensor
surface temperature may reach
200°C (390°F) during operation,
and may cause a burn if not
allowed to cool.
1. Turn the leak detector off.
2. Unplug the power cord and open the sensor cover.
The sensor is now visible. (See Figure 8
and Figure 11.)
3. Allow the sensor to cool before handling it
(approximately 15 minutes).
4. Unplug and discard the sensor.
5. Insert a new sensor and close the sensor cover.
6. Turn the sensor heat control knob (on the bottom
of the unit) to its full counterclockwise position.
7. Turn the unit on, and calibrate the new sensor.
(See instructions in the Calibration and Verification
section.)
Figure 11: Replacing the Sensor
RLD-H10G Product/Technical Bulletin 5