Description Of Operation - NuAire FAITH Quick Start Manual

Installation and Maintenance
6.0 OPERATION
Read this manual carefully before operating the product and keep it in a
safe place for reference.
The unit is provided with a 7 segment LED display which is visible by
removing the fascia. The LED display illuminates upon pressing any
button, and stays on for 10 seconds after the last button press.
IMPORTANT
Additional Safety Feature: When the front cover support is
removed, the impeller stops turning. To aid with installation, this
feature is disabled for the first 60 minutes of operation.
Figure 18. 7 segment display buttons
Menu Minus (-)

6.1 Description of Operation

Upon power-up, the unit works at 'trickle' speed ('A').
If humidistat is activated, the unit works at 'comfort boost' speed ('b').
If the SL or pull-cord is activated, the unit runs at 'boost' speed ('B').
After the pull cord switch is turned off, the fan continues to run at
'boost' speed for a settable period of time, then it returns to selected
'trickle' speed (or to 'comfort boost' speed in case automatic humidistat
operation is on). The front cover LED illuminates to indicate when the
pull cord switch is on.
The run-on timer function is activated only if the SL has been on for
at least 3 minutes. This function does not activate with use of the pull
cord.
6.2 Run Hours Monitor
An integral run time monitor is included with the unit. Upon power-up
the display shows the running hours counter in a user friendly format.
E.g. -> (1 year) ->
(13 hours) -> ...
Note that due to the format of a 7 segment display 'm' cannot be used
for months with being displayed in its place.
6.3 Unit of Measure
All air volumes shown on the unit for trickle, comfort boost and boost
and in litres per second (l/s), this is displayed on the unit as a lower case
'u' ( ).
Unit of Measure ( )
Setting
l/s (Default)
6.4 Trickle Speed
Upon power up and in the absence of an active SL or pull cord, the unit
will run continuously at a settable trickle speed of between 0-13 l/s.
6
nuaire.co.uk
Plus (+)
(4 months) -> (6 days) ->
Value Displayed
029 2085 8200
FAITH - 230V / 24V SELV Extract Fans
6.4.1 Setting Trickle Speed
Select the trickle speed setting on the unit by pressing the menu button
until the first digit on the 7 segment display shows an upper case 'A'
( ).
Press '+' or '-' to raise and lower the trickle speed between the values
given in the table below.
Trickle Speed ( )
Setting (l/s)
0
4 (Default)
6
8
10
13
6.5 Comfort Boost Speed
The unit will run at a settable comfort boost speed of between 6-25 l/s
when either of the below conditions have been met.
The humidistat has been activated.
•
The run-on timer has been activated.
•
6.5.1 Setting Comfort Boost Speed
Select the comfort boost speed setting on the unit by pressing the
menu button until the first digit on the 7 segment display shows an
lower case 'b' ( ).
Press '+' or '-' to raise and lower the comfort boost speed between the
values given in the table below.
Comfort Boost ( )
Setting (l/s)
6
8
10
13 (Default)
15
18
20
25*
* 25 l/s is only available when through the wall installation is selected
(see section 6.8).
6.6 Boost Speed
The unit and will run at a settable boost speed of between 8-25 l/s
when either of the below conditions have been met.
The SL (Switched Live) has been activated.
•
The pull cord has been activated.
•
6.6.1 Setting Boost Speed
Select the boost speed setting on the unit by pressing the menu button
until the first digit on the 7 segment display shows an upper case 'B'
( ).
Press '+' or '-' to raise and lower the boost speed between the values
given in the table below.
Value Displayed
Value Displayed