Fan adjustment - Humidity / Timer
Humidity and timer functions are activated when the
voltage is supplied to the Ls terminal via an external
switch or when the humidity level rises above the set %
RH level (adjustable between 60 and 90% RH).
After the voltage to the Ls terminal is disconnected or
the humidity level falls below the set %RH level, the fan
continues to run for the set overrun period between 2
and 30 minutes.
The humidity level is adjusted
by turning the potentiometer
(
H
) clockwise to increase and
anti-clockwise to decrease. To
set the maximum humidity
level the potentiometer (
H
)
has to set at the max position
(90%).
See page 8 “Fan adjustment -
Timer” for timer adjustment
instructions.
T
H
Page 9 of 16
T
Through the wall i
nstallation with flexible
ducting
To maximise airflow rigid ducting should be used.
Where flexible ducting is used the diameter must be
maintained and it is good ventilation practice that the
ducting is extended to 90% of its possible length in
order to maintain the best possible airflow. Ensure
that flexible duct connections are not over tightened to
the fan outlet spigot. The fan and ducting should be
installed in accordance with the requirements of the
Domestic Ventilation Compliance Guide, part of the
Building Regulations.
1. Has been installed and used in accordance with the
fitting and wiring instructions supplied with each unit.
2. Has not been connected to an unsuitable electrical
supply.
3. Has not been subjected to misuse, neglect or
damage.
4. Has not been modified or repaired by any person not
authorised by Airflow Developments Ltd
5. Has been installed in accordance with latest Building
Regulations and BS7671 wiring regulations by a
recognised competent installer.
Airflow Developments Ltd shall not be liable for any
loss, injury or other consequential damage
,
in the event
of a failure of the equipment or arising from, or in
connection with, the equipment excepting only that
nothing in this condition shall be construed as to
exclude or restrict liability for negligence.
This warranty does not in any way affect any statutory or
other consumer rights.
Recommended Best Practice
The Building Regulations 2010, Statutory Instrument
Part 9, paragraph 42, imposes a requirement that
testing and reporting of mechanical ventilation
performance is conducted in accordance with an
approved procedure.
Compliance with this requirement by an assessed and
registered ‘Competent Person’ should follow a ‘Best
Practice’ process and adopt air flow measurement,
Method A – The Unconditional Method – using a
suitable UKAS certified measuring instrument.
Generically referred to as a ‘Zero Pressure Air Flow
Meter’ or ‘Powered Flow Meter’.
Further information on this method is detailed in NHBC
Building Regulations Guidance Note G272a 10/13 and
BSRIA ‘A Guide to Measuring air flow rates’ document
BG46/2015
Maintenance
SAFETY FIRST: ALWAYS ISOLATE THE FAN UNIT
FROM THE POWER SUPPLY BEFORE REMOVING
THE COVER.
When installed according to these instructions the Aria
range is completely safe. The materials used do not
constitute a hazard.
Cleaning
The external housing of the fan can be wiped with a
damp cloth. Do not use household cleaners containing
abrasives.
Note:
Always isolate the fan when cleaning. Never
clean any parts of the fan assembly by immersing in
water or using a dishwasher.
Warning
This appliance can be used by children aged from 8
years and above and persons with reduced physical,
sensory or mental capabilities or lack of experience
and knowledge if they have been given supervision or
instruction concerning use of the appliance in a safe
way and understand the hazards involved. Children
shall not play with the appliance. Cleaning and user
maintenance shall not be made by children without
supervision
Fan adjustment - Motion sensor / Timer
The fan with motion sensor and timer function switches
on when movement is detected between a distance of
1 and 4 metres from the fan. The sensor has a
detection angle of 100° horizontally.
Once movement ceases, the fan continues to run for
the set overrun period which is adjustable between 2
and 30 minute.
UK Head-Office
AIRFLOW DEVELOPMENTS Limited
Aidelle House, Lancaster Road
Cressex Business Park
High Wycombe
Buckinghamshire
HP12 3QP
United Kingdom
Tel:
+4 (0) 1494 525252
Email: [email protected]
Web: airflow.com
Czech Republic
AIRFLOW LUFTTECHNIK GmbH
organizační složka Praha
Hostýnská 520
108 00 Praha 10
Czech Republic
Tel: +42 (0) 2 7477 2230
Fax: +42 (0) 2 7477 2370
Email: [email protected]
Web: airflow.cz
Germany
AIRFLOW LUFTTECHNIK GmbH
Postfach 1208
D
-
53349 Rheinbach
Germany
Tel:
+49 (0) 222 69205 0
Fax: +49 (0) 222 69205 11
Email: [email protected]
Web: airflow.de
AIRFLOW DEVELOPMENTS LTD reserve the right in the interest of continuous development to alter any or all specifications without
prior notice.
Page 10 of 16
Page 11 of 16
Warranty
Applicable to units installed and used in the United
Kingdom. Airflow Developments Ltd guarantees the
Aria for
2
years from date of purchase against faulty
material or workmanship. Warranty only covers the fan,
not the reinstallation of this if required. In the event of
any defective parts being found, Airflow Developments
Ltd reserve the right to repair or at our discretion
replace without charge provided that the unit:
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Fan Assembly - Motion sensor
Fan body
assembly
Front
Electronic
control
