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Replacing a High Pressure Switch
Prerequisites
- A high pressure switch needs to be replaced.
- A spare high pressure switch of the same model is available and functional.
- Tools: gloves, two adjustable wrenches, thread sealant
Context
The high pressure switch can be maintained only from the rear.
The procedure for replacing a high or low pressure sensor is similar to that for replacing the high pressure switch.
Procedure
- Tap Shutdown on the home screen of the controller and turn off the smart cooling product switch on the upstream PDF.
Exercise caution because the device is still energized after it is shut down on the controller home screen.
- Open the rear door and remove the air filter.
- Remove the cables from the high pressure switch.Figure 6-10 Position of the high pressure switch
- Secure the pipe nut using an adjustable wrench, and loosen the adjustable nut using another adjustable wrench until the high pressure switch is removed.Figure 6-11 Removing a high pressure switch
(1) Pipe nut
(2) Adjustable nut
Exercise caution when removing the high pressure switch because a small amount of refrigerant will be sprayed when you remove the switch.
- Apply sealant on the outer side of the air valve connected to the pipe nut.
- Install the new high pressure switch and connect cables.
- Install the air filter and close the rear door.
- Power on the device and tap Start on the home screen. Ensure that the smart cooling product is running properly without any alarms.
