Xpelair Xcell 400 QV Installation And Operating Instructions Manual page 41

b) Remove the Bell Mouth covering the faulty Fan.
Note: Insert a flat bladed screwdriver into the recess on the edge of the Bell Mouth & lever it out carefully
to avoid damaging the EPP housing.
c) Remove the three retaining screws of the faulty Fan.
d) Pull out the faulty Fan (attached to the plastic Motor Mount) and disconnect the plug connections on the
Control PCB for both Fan leads – note the position of the plugs for fitting the replacement Fan.
e) Remove the four retaining screws to remove the plastic Motor Mount from the faulty Fan, note the orientation
of the faulty Fan and its leads in relation to the slots in the plastic Motor Mount.
f) Assemble the plastic Motor Mount to the new Fan & secure with the four retaining screws.
g) Re-connect the plug connections for both Fan leads onto the Control PCB.
h) Position the new Fan in the MVHR, ensuring that the plastic Motor Mount is correctly orientated and is flat
against the EPP housing.
i) Secure the new Fan into place with the three retaining screws.
j) Replace the Bell Mouth, push gently into the EPP housing but ensure it is clips fully into place.
k) Spin the blades of the new Fan to ensure that it moves freely and is not obstructed in any way. If any
obstruction is present the Fan has not been positioned correctly within the EPP housing. Dismantle again to
correctly fit ensuring that the plastic Motor Mount is correctly orientated and is flat against the EPP housing.
7. Repeat step 6 for the other Fan should both Fans need replacing. It is recommended that only one Fan is
replaced at a time.
8. Replace the Heat Exchanger carefully, keeping it horizontal to avoid damaging the EPP housing.
9. Replace the Heat Exchanger Retaining Bracket & retaining screw.
10. Replace the two G4 Filters.
11. Replace the Access Hatch by locating and turning to the right.
12. Switch the mains supply back on.
13. The MVHR is ready to recommence operation.
41
Removable Bell Mouth component