Installation Of A Replacement Control Pcb; Installation Of A Replacement Display Pcb - Xpelair Xcell 400 QV Installation And Operating Instructions Manual

10.3 Installation of a replacement control PCB

1. Disconnect the MVHR from the mains supply.
2. Remove the Access Hatch by turning it to the left.
3. Remove the metal Front Panel by removing the sixteen screws along its four edges.
4. The Control PCB can now be removed from inside the MVHR by accessing it through the opening on the
right hand side.
5. Disconnect all leads carefully from the Control PCB.
6. Re-connect all leads to the new Control PCB and push it into place.
7. Re-fit the metal Front Panel to the MVHR and secure with the sixteen screws.
8. Replace the Access Hatch by locating and turning to the right.
9. Switch the mains supply back on.
10. The MVHR is ready to recommence operation.

10.4 Installation of a replacement display PCB

1. Disconnect the MVHR from the mains supply.
2. Remove the Access Hatch by turning it to the left.
3. Remove the metal Front Panel by removing the sixteen screws along its four edges.
4. Remove the Display PCB and disconnect the power leads of the faulty Display PCB from the Control PCB,
located in the opening on the right hand side of the MVHR.
5. Push the new Display PCB into the EPP mounting in the front of the MVHR and re-connect the power leads
of the new Display PCB to the Control PCB.
6. Re-fit the metal Front Panel to the MVHR and secure with the sixteen screws.
7. Replace the Access Hatch by locating and turning to the right.
8. Switch the mains supply back on.
9. The MVHR is ready to recommence operation.
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