Step 6 Insert the differential pressure tube into the pressure detection port on the differential pressure
sensor, guarantees gas tightness.
Step 7 Install the air filter and rear door.
Step 8 Tap Maint > Performance Maint on the home screen to enter the performance maintenance
screen, and clear accumulated running time of the differential pressure sensor.
Figure 6-14 Replacing the differential pressure sensor
----End
6.5.15 Replacing a Controller Panel
Prerequisites
The controller panel needs to be replaced.
A spare and functional controller panel is available.
Context
Recommended tool: Phillips screwdriver
Preparation: maintain from the front door
Procedure
Step 1 Unlock the front door and pull the door upwards to remove the upper part of the front door
from the cabinet, be careful not to damage the controller cables.
Step 2 Remove cables from the controller panel.
Step 3 Pull the door upwards to remove the lower part of the front door from the cabinet.
Step 4 Loosen the four screws fastening the controller panel using a Phillips screwdriver. Push the
controller panel from the right or left side and remove the controller panel, as shown in Figure
6-15.
Step 5 Replace the controller panel and use the Phillips screwdriver to fix the new controller panel to
the original position.
Step 6 Insert the lower part of the front door to the original position.
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