FRÄNKISCHE profi-air 250/360 flex, Installation And Operating Instructions Manual

Page: 88 / 108

Installation and operating instructions profi-air 250/360 flex
88
Fault / problem Possible causes Checkup / measure
Noise level too high
Absence of silencer. Install silencer.
No or false adjustment. See Section 4.2 for adjusting the unit.
Whistling noise from an air gap. Seal the air gap.
Flow noise
n
valves are not flush
with the pipe system.
n
valves not sufficiently
opened.
Properly insert the valve into the connection piece.
Re-adjust the valve (ensure the air gap is as large as possible).
Condensate leakage
Condensate drain is clogged. Clean condensate drain.
Condensate drain leaking. Connection and condensate flow verification.
Optional condensate pump con-
trol is defective.
Replace condensate pump.
Room air very dry
Too high air volume flow rate is
provided in relation to the size
and usage of the rooms. Due to
missing or false adjustment or
too high ventilation mode.
See Section 4.2 for adjusting the unit.
Adjust the ventilation mode.
Switch the unit from manual to automatic mode (only possible
if internal humidity and/or VOC sensor is installed).