Xpelair Xcell 150 QV, Installation And Operating Instructions Manual

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9.4 Cleaning the heat exchanger
The heat exchanger should be cleaned by a specialist technician as and when required depending on the level of
contamination, but at least every 2 years. Contact details for authorised servicing by Xpelair approved technicians
can be found on the back of this booklet.

Disconnect the MVHR from the mains supply.
 Remove the Access Hatch by turning it to the left.
 Remove the retaining bracket located in front of the Heat Exchanger by removing the screw.
 Carefully pull the Heat Exchanger out forwards, keeping it horizontal to avoid damaging the EPP housing.
 Thoroughly rinse the Heat Exchanger with lukewarm water and allow all the water to drain off.
 Residual moisture will evaporate when the MVHR is operated.

Carefully insert the cleaned Heat Exchanger, keeping it horizontal to avoid damaging the EPP housing.
 Replace the Heat Exchanger retaining bracket and retaining screw.
 Replace the Access Hatch.
 Switch the mains supply back on.
 The MVHR is ready to recommence operation.
10 Malfunctions
Important: Servicing of the MVHR may only be carried out by a qualified service technician. Contact details for
authorised servicing by Xpelair approved technicians can be found on the back of this booklet.
10.1 Fault locating table
FAULT / MALFUNCTION CHECK POSSIBLE CAUSE
Supply air or exhaust air fan does
not work
The mains supply is on and all 3
LEDs on the 3-speed switch are
flashing.
-
External air / supply air fan
defective
-
Exhaust air / outgoing air fan
defective
-
Fan blade catching on inner
EPP housing
-
PCB defective (Xcell 150 QVW
models only)
-
Contact fault on motor lines
Supply air or exhaust air fan does
not work
The mains supply is on and no
LEDs on the 3-speed switch are
flashing.
-
Mains supply interrupted
-
Contact fault
-
Fuse has blown
Air volume flow rate (m
3
/h) in sup-
ply air or exhaust air is too low
LED on the 3-speed switch is flash-
ing - filter service indicated.
-
Filter service period has ex-
pired
No water coming through conden-
sate drain hose Drops of water on the underside of
the MVHR
-
No water in siphon
-
Condensate water drain
blocked
Noise coming from the MVHR Fans are noisy
-
Increased air resistance due to
contaminated filters / heat ex-
changer
-
Obstruction in the duct system
-
Room air regulator valves not
open wide enough
-
Fan blade touching inner EPP
housing
This table is subject to technical amendments