Airflow Aria 100B, Aria 100H User guide

80000510 Issue 3 06/19

Fan Range
Installation and Operating Guide

Aria 100B - 90000687
Aria 100T - 900006 88
Aria 100H - 90000689
Aria 100MST - 90000690

Fan dimensions

Aria 100

Fan overview

1

5

2

1-cover, 2-casing, 3-motor

4-impeller, 5-control.

3

Range overview

Aria fans are designed for ventilation of domestic
premises i.e. bathrooms, toilets and shower rooms.
They are recommended for 'through the wall'

instilation.

The Aria 100B model may be used as a simple
extract fan operated by a remote switch.
The Aria 100T model includes an adjustable timer
function 2 to 30 minutes.
The Aria 100HT model includes an adjustable timer
function 2 to 30 minutes and an adjustable humidity
function 60 to 90% RH.
The Aria 100MST models includes adjustable timer
function 2 to 30 minutes and motion sensing.

4

Fan Size

100mm 66.5 31.8 6 26

Max flow,

m3/h

Max

pres-

sure, Pa

Nominal

power, W

Electrical installation

The Aria fan range is IPX4 rated and is suitable for
mounting in Zone 2 in bathrooms, toilets, kitchens,
utility rooms and inside shower cubicles when installed
with a 30mA RCD. In addition AFDD protection is also

required.

The fan requires a 220 - 240V 50Hz single phase
supply. Class II equipment. BS EN 60417. An external
3A fuse is required for each fan unit. Cable sizes
(max): Fixed flat wiring 2 core 1mm2, 3 core 1/1.5mm2
All electrical installation work to be carried out by a
competent person in compliance with the relevant
Building Regulations/Standards as well as the current
edition of BS7671 (IET Wiring Regulations).

Important notes

The Aria range also complies with the requirements of
the EU norms and directives. Do not place the
ventilator near direct heat sources, e.g. radiant
heaters, or where temperatures can exceed 40°C
(104°F). Precautions must be taken to avoid back flow
of gases in rooms with open flue fuel burning
appliances.

Noise
level
dB(A)

Electrical installation

Aria 100B, 100HT, 100MST
Wiring for fans with no external switching

Aria 100T, 100HT
Wiring for fans with external switching

Page 2 of 16

Mechanical installation

Aria fans can be wall mounted.
For mounting the fan, a ø100mm is required for the
spigot, as well as at least two holes for the mounting
screws. When mounting the fan, remove the front
cover and place the fan into the pre drilled hole. Make
sure that the spigot fits into any pre-installed ducting.
Wire the fan appropriately according to page 5,
ensuring that the cables from the fan are routed
through the provided cable hole.
Use at least two mounting screws to secure the fan to
the ceiling or wall ensuring not to over tighten and
replace the front cover with the retention screw.
Ensure free running of the fan impeller and that
flexible duct connections are not over tightened to the
fan outlet spigot.
Airflow recommends that rigid ducting is used instead
of flexible ducting, this will ensure maximum
performance

Page 3 of 16

Fan assembly - Timer and Humidity /Timer

Fan body

Front cover

Electronic

Control

assembly

T & HT

Page 4 of 16

Fan adjustment - Timer

The fan with timer function switches on when the
voltage is supplied to the Ls terminal via an external
switch.
After the voltage to the Ls terminal is disconnected the
fan continues to run for the set overrun period between
2 and 30 minutes. The overrun period is adjusted by
turning the potentiometer (T) clockwise to increase and
anti-clockwise to decrease.

T

Page 5 of 16 Page 6 of 16 Page 7 of 16 Page 8 of 16

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 -

T

Timer” for timer adjustment

H

instructions.

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.

T

Fan Assembly - Motion sensor

Front

Through the wall installation with flexible
ducting

Fan body

assembly

Electronic

control

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.

Page 9 of 16

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

Page 13 of 16 Page 14 of 16 Page 15 of 16 Page 16 of 16

Page 10 of 16 Page 11 of 16

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

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:

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.

Page 12 of 16

UK Head-Office

AIRFLOW DEVELOPMENTS Limited
Aidelle House, Lancaster Road
Cressex Business Park
High Wycombe
Buckinghamshire
HP12 3QP
United Kingdom

Tel:

[phone]

Email: [e-mail]
Web: airflow.com

AIRFLOW DEVELOPMENTS LTD reserve the right in the interest of connuous development to alter any or all specicaons without
prior noce.

Czech Republic

AIRFLOW LUFTTECHNIK GmbH
organizační složka Praha
Hostýnská 520
108 00 Praha 10
Czech Republic

Tel: [phone]
Fax: [phone]
Email: info@airow.cz
Web: airow.cz

Germany

AIRFLOW LUFTTECHNIK GmbH
Posach 1208
D-53349 Rheinbach
Germany

Tel: [phone]
Fax: [phone]
Email: info@airow.de
Web: airow.de