Difficulty

Moderate

Steps

16

Time Required

                          25 minutes

Sections

2

  • How to Properly Clean the Airox Legendair
  • 5 steps
  • Turbine Box
  • 11 steps

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Introduction

The repair guide information is mentioned in following sections of the user repair manual:

· Chapter 2 – 2.1.1 Cleaning the Device

· Chapter 2 – 2.4.1 Opening and Closing

· Chapter 6 – 6.1 Removal/Installation of the Turbine Box with Wiring

What you need

Step 1

              How to Properly Clean the Airox Legendair
  • First, switch off the device.

First, switch off the device.

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Step 2

  • Place the device in a clean and open environment.

Place the device in a clean and open environment.

Step 3

  • Using a cloth or a sponge slightly dampened with a bactericide or germicide solution, gently clean the outside of the device.

Using a cloth or a sponge slightly dampened with a bactericide or germicide solution, gently clean the outside of the device.

Step 4

  • If necessary, spray the device lightly with the germicide solution, taking account of the requirements discussed in the preliminary operations.
  • Do not allow any liquid to enter inside the device (in particular through the cooling apertures).

If necessary, spray the device lightly with the germicide solution, taking account of the requirements discussed in the preliminary operations.

Do not allow any liquid to enter inside the device (in particular through the cooling apertures).

Step 5

  • Use a gentle air blast to clear away any remaining liquid from ventilator.

Use a gentle air blast to clear away any remaining liquid from ventilator.

Step 6

              Turbine Box
  • Make sure to turn off the ventilator before starting the repair.
  • Put the device in a clean and open environment.
  • Thoroughly clean the device before beginning any work.

Make sure to turn off the ventilator before starting the repair.

Put the device in a clean and open environment.

Thoroughly clean the device before beginning any work.

Step 7

  • Open the device by removing the five attachment screws (Pl1.20) on the bottom casing side (Pl1-280). Lift off the top outer panel.
  • Carefully separate the two casings to avoid tearing off the keypad connections.

Open the device by removing the five attachment screws (Pl1.20) on the bottom casing side (Pl1-280). Lift off the top outer panel.

Carefully separate the two casings to avoid tearing off the keypad connections.

Step 8

  • Unscrew the three attachment screws (Pl1-130) for the CPU board (Pl1-120).

Unscrew the three attachment screws (Pl1-130) for the CPU board (Pl1-120).

Step 9

  • Disconnect all connectors Pl1.J1.CT, Pl1.J2.CT of the turbine control board.

Disconnect all connectors Pl1.J1.CT, Pl1.J2.CT of the turbine control board.

Step 10

  • Extract the turbine casing (Pl1.50) from its housing and uncouple the flow rate measurement block (Pl1-260), the O2 supply pipes and the piezo solenoid valve.

Extract the turbine casing (Pl1.50) from its housing and uncouple the flow rate measurement block (Pl1-260), the O2 supply pipes and the piezo solenoid valve.

Step 11

  • Place the turbine box (Pl1-50) in a clean and open environment
  • Remove the four screws, washers and spacers (Pl1.70, Pl1.80, Pl1.90) in order to successfully extract the turbine control board (Pl1.60).

Place the turbine box (Pl1-50) in a clean and open environment

Remove the four screws, washers and spacers (Pl1.70, Pl1.80, Pl1.90) in order to successfully extract the turbine control board (Pl1.60).

Step 12

  • Disconnect the box from the turbine control board (Pl1.J6.CT).

Disconnect the box from the turbine control board (Pl1.J6.CT).

Step 13

  • Replace the turbine box (Pl1-50).
  • Replace the turbine control board (Pl1.60) on the box with four screws, washers and spacers (Pl1.70, Pl1.80, Pl1.90) (Torque 5 Nm max.).

Replace the turbine box (Pl1-50).

Replace the turbine control board (Pl1.60) on the box with four screws, washers and spacers (Pl1.70, Pl1.80, Pl1.90) (Torque 5 Nm max.).

Step 14

  • Connect the box to the turbine control board (Pl1.J6.CT).
  • Couple the flow rate measurement block (Pl1-260) to the casing and connect the two O2 supply pipes and the piezo solenoid valve.
  • Then, reinsert the assembly into its housing. Put the cone support (Pl1-50) into place. Put the additional cone support (Pl1-220) also into place.

Connect the box to the turbine control board (Pl1.J6.CT).

Couple the flow rate measurement block (Pl1-260) to the casing and connect the two O2 supply pipes and the piezo solenoid valve.

Then, reinsert the assembly into its housing. Put the cone support (Pl1-50) into place. Put the additional cone support (Pl1-220) also into place.

Step 15

  • Reconnect all connectors (Pl1.J1.CT, Pl1.J2.CT) to the turbine control board.

Reconnect all connectors (Pl1.J1.CT, Pl1.J2.CT) to the turbine control board.

Step 16

  • Reinstall the CPU board (Pl1-120) with the three attachment screws (Pl1-130) (Torque 5 Nm max.)
  • Close the device again, taking all necessary precautions (see Step 2-3)

Reinstall the CPU board (Pl1-120) with the three attachment screws (Pl1-130) (Torque 5 Nm max.)

Close the device again, taking all necessary precautions (see Step 2-3)

Perform a final inspection of the device before putting back into service.

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                    Noah Clark

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                       Cal Poly, Team S7-G15, Paton Spring 2020                        

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