14
14. Installation of Replacement Fans
Should either Fan develop a fault and need to be replaced,
contact details for servicing by Xpelair approved technicians
can be found on the back of this booklet.
The replacement procedure is as follows:
1. Disconnect the MVHR from the mains supply
2. Remove the two Filters
3. Remove the cover screws and remove the cover
4. Remove the recuperator retaining screw and bracket
5. Remove the Recuperator carefully, keeping it parallel to avoid damaging the EPP housing
6. The following procedure applies to both MVHR fans, only remove faulty fans from the
MVHR:
a) Identify the faulty fan within the MVHR
b) Disconnect the power and control leads of the faulty fan from the PCB or Terminal Block
(Refer to Section 7 for the relevant wiring diagram to correctly identify
which leads to disconnect for each fan)
c) Slide out the EPP fan scroll support assembly and separate the fan scroll casing
d) Remove the three retaining screws, attached to the plastic motor mount and remove the faulty fan also pulling through the faulty fan leads
e) Remove the four retaining screws to remove the plastic Motor Mount from the faulty fan, noting the orientation of the faulty f
an and it’s leads in relation
to the slots in the plastic motor mount
f) Assemble the plastic motor mount to the new fan and secure with the four retaining screws
g) Secure the new fan into place with the three retaining screws
h) Connect the power and control leads of the new fan to the PCB/Terminal Block (whichever applies)
i) Refer to Section 7 for the relevant wiring diagram to correctly identify where to reconnect the power/ control leads
j) Spin the blades of the new fan to ensure that it moves freely and is not obstructed. If any obstruction is present the fan has not been positioned correctly with-
in the EPP housing
k) Repeat this for the other fan, if both fans need replacing. We recommend only one fan is replaced at a time
l) Replace the Recuperator carefully, keeping it parallel to avoid damaging the EPP housing
m) Replace the Recuperator Retaining Bracket and retaining screw
n) Replace the Cover
o) Replace the two Filters and filter covers
p) Switch the mains supply on
q) The MVHR is ready to recommence operation
This Xpelair MVHR was purchased from:
Supplier stamp
On __________________________(date)
Maintenance Log
Date
Action
Signature/ Stamp
