Titon aura-t TP539 User manual

EN
HRV controller HMB unitsProduct Manual
aura-t TP539

2
Warnings, Safety information and
Guidance
Important Information
Read instructions fully before the installing this appliance.
1. This manual covers the operation of the HRV control sys-
tem only, it must therefore be read in conjunction with
the relevant heat recovery unit Product Manual.
2. Installation of the appliance and accessories must be car-
ried out by a qualied and suitable competent person and
be carried out in clean, dry conditions where dust and
humidity are at minimal levels.
3. All wiring must conform to current I.E.E. Wiring Regula-
tions and all applicable standards and Building Regula-
tions.
4. aura-t must be connected using the communication ca-
ble provided.
5. Control & communication cables should not be placed
within 50mm or on the same metal cable tray as any 230V
lighting or power cables.
6. Ensure all cable glands are fully tightened.
7. The unit must be stored in a clean and dry environment.
Do not install the appliance in areas where the following
may be present or occur;
• Excessive oil or a grease laden atmosphere,
• Corrosive or ammable gases, liquids or vapours,
• Ambient temperatures above 40°C or below -5°C,
• Humidity levels above 90% or is a wet environment.

3
8. The appliance is not suitable for installation to the exterior
of the dwelling.
9. 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 concern-
ing use of the appliance in a safe way and understand the
hazards involved.
10.Children should be supervised to ensure that they do not
play with the appliance.
11.To avoid damaging the touch screen, do not operate it
with sharp or hard objects; do not apply excessive nger-
tip pressure.
12.Do not use abrasive cleaners, waxes, solvents or alcohol
based cleaning products; do not use paper towels for
cleaning the aura-t.

4
Contents
Warnings, Safety information and Guidance
Important Information . . . . . . . . . . . . . . . . . . . . . . . . . .2
Product Overview
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Packaging Contents . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Product Overview
Controls & Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Standard aura-t or auralite ready. . . . . . . . . . . . . . . .6
Enhanced aura-t integrated or aura-t connected. . .6
User Interface
Menu Tabs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Run Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Installation
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Fixing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Fan Commission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Cloning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Saving Fan Speeds to the aura-t. . . . . . . . . . . . . . . 18
Controller Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Summer Bypass Setup. . . . . . . . . . . . . . . . . . . . . . . 21
Passcode Enable / Disable. . . . . . . . . . . . . . . . . . . . 21
Eco Mode and Switch Setup Menu. . . . . . . . . . . . . 22
Maintenance
Cleaning Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Appendix
aura-t Congurable Defaults . . . . . . . . . . . . . . . . . . . 23

5
Product Overview
Description
The aura-t is a programmable touch screen controller which monitors and displays
the status of a Titon HMB HRV unit. The aura-t gives the user manual control of fan
speeds and enables access to enhanced commissioning functions of the HRV.
Retrotted to standard HMB units (Compatible units have a socket on the
terminal box)
Supplied with a HMB unit, to enable remote siting of the aura-t.
Integrated into the unit (not available with H200)
Packaging Contents
Inspect the unit when taking delivery. Check the unit for damage and that all
accessories have been supplied.
Package supplied with:-
1 x aura-t controller.
1 x ~3m aura-t communication cable (not included with integrated versions).
1 x Product Manual.
Any shortages or damage must be immediately reported to the supplier.
Dimensions
23.70
87
87
aura - T

6
Product Overview
Controls & Features
Standard aura-t or auralite ready
The standard units have the ability to run standalone with the built in controller
with potentiometer commission or connect either an aura-t controller for enhanced
control and commissioning or an auralite LED status indicator using a the plug in
connection.
Enhanced aura-t integrated or aura-t connected
These units use the aura-t, for control and commissioning, either integrated into the
front of the units or connected using a the plug in connection.
Unit Features
Feature Standard without aura-t Enhanced with aura-t
connected or integrated
Programmable
Speeds
The unit has 4 Speeds.
Speed 1, Setback - Reduced
ventilation. Setback Speed is
automatically set at the mid
point between minimum
possible Continuous Speed and
the selected Continuous Speed.
Speed 2, Continuous - Normal
ventilation.
Speed 3, Boost - Increased
ventilation.
Continuous & Boost speeds are
commissioned using the basic
controllers potentiometer
Speed 4, SUMMERboost® - Very
high ventilation. This speed is
set at 100%.
The unit has 4 programmable
speed settings, all speeds are
variable between 14-100%
and allow independent speed
setting of both supply and
extract ventilation rates
Speed 1, Setback - Reduced
ventilation.
Speed 2, Continuous - Normal
ventilation.
Speed 3, Boost - Increased
ventilation.
Speed 4, SUMMERboost® - Very
high ventilation.

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Feature Standard without aura-t Enhanced with aura-t
connected or integrated
Speed Selection Speed 1, Setback is enabled by
connection of a volt free one-
way switch, or combined with
the Speed 3 Boost with the 3
position switch TP 508.
Speed 3, Boost can be triggered
by any device which provides a
volt free one-way switch, such
as a PIR, thermostat, humidistat
or a standard one-way switch.
As the standard units with the
additional functionality of:
Speeds 1, 3 & 4 can be assigned
to any of the volt free switch
inputs. The unit speed can also
be manually selected via the on
screen 1, 2, 3 & 4 buttons/icons
which are also used to display
any automatically selected
speed.
Summer Bypass Summer Bypass is designed to operate during hot periods where
fresh air can be vented straight into the property without being
preheated by the extracted stale air. Summer Bypass operation is
automatically controlled. The Summer Bypass mechanism diverts
the stale air being extracted from the dwelling around the heat
cell so that its heat energy is not transferred to the fresh air being
supplied to the property.

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Feature Standard without aura-t Enhanced with aura-t
connected or integrated
Volt free
Switch inputs
Not congurable.
Defaults:
SW1 Summer Boost Disable
SW2 Wet Room Boost
SW3 Speed 1
The units have 3 congurable
volt free switch inputs. Each of
the switches can be congured
to perform any one of the
following functions:
o Wet Room Boost - engages
Speed 3 & uses Wet Room
Boost Overrun Timer.
o Kitchen Boost - engages
Speed 3 & uses Kitchen Boost
Overrun Timer.
o SUMMERboost Disable - see
right.
o Speed 1 Setback
o Speed 4
o O (normally open) -
switches o both fans
o O (normally closed) -
switches o both fans
o Manual Summer Bypass -
engages bypass
o Boost Inhibit - activates
Boost Inhibit

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Feature Standard without aura-t Enhanced with aura-t
connected or integrated
SUMMERboost® An optional SUMMERboost® facility is available that allows both
the supply and extract fans to run at increased speed whenever
the Summer Bypass is activate.
By default SUMMERboost® is disabled by a Link Wire, see Wiring
Diagrams. Removal of the link wire will enable SUMMERboost®.
When SUMMERboost® is triggered by Summer Bypass the
increased fan speed can be prevented either Manually or
Automatically.
Manual - This is by means of a volt-free switch wired directly into
the controller PCB.
Automatic - This is by means of a dedicated wall mounted
room thermostat. SUMMERboost® will only operate when the
temperature has exceeded the thermostat setting. Should
the room temperature fall below the thermostat setting, then
SUMMERboost® will not operate.
Boost Overun
Timer
Variable between 0 and 60 minutes. The Boost Speed can be
triggered by any device which provides a volt free one-way
switch, such as a PIR, thermostat, humidistat or a standard one-
way switch.
Two independently congured
timers are available.
Wet Room & Kitchen
Boost Alert Only available with auralite®
LED status indicator.
The aura-t displays an alert if
a switch has held the HRV in
Boost for more than 2 hours.
Boost Inhibit Not available. Boost Inhibit is used to prevent
the HRV’s speed increasing

10
Feature Standard without aura-t Enhanced with aura-t
connected or integrated
Internal
Humidity
Sensor
The fan speed increases proportionally between Continuous
Speed & Boost Speed depending on the measured %RH.
RH Set
Point
-10% +10%
Continuous
Speed
Boost
Speed
The Humidity Sensor’s set
point is variable from 55%RH
to 85%RH Commissioned
using the standard controllers’
potentiometer.
The Humidity Sensor’s set
point is variable from 30%RH to
100%RH, Programmed via the
touchscreen.
Filter Change
Alert
Only available with auralite®
LED status indicator.
The aura-t will display an alert
after a specied time when the
HRV lters require changing.
Eco Mode Not available. After a one minute period of
inactivity the LCD will switch
o.
Status Icons LEDs with the auralite The aura-t displays icons to
indicates modes of operation in
Real-time.
Fan Speed
Cloning
Not available. The current fan speeds can be
saved to the aura-t and copied
onto another HRV to reduce
commissioning time.
When an aura-t controller is connected to a Standard unit all the Enhanced features
are available and any setting changes made will be stored after the aura-t controller is
disconnected.

11
Settings Reset
If required the controller can be reset. The following settings are returned to their
default values:
Setting Default Value
SW1 Summer Boost Disable
SW2 Wet Room Boost
SW3 Speed 1
Filter Change Period 6 months
Summer Bypass Extract Threshold 22°C
Summer Bypass Supply Threshold 15°C
SummerBoost Enabled
Speed 4 : Supply 100%
Extract 100%
To reset the above settings:
1. Power down the unit.
2. Place all three switch inputs into the closed position and the Commission switch
on the unit PCB to the Continuous position.
3. Power up the unit for no longer than 10 seconds.
4. Power down the unit.
5. Return the commission switch on the unit PCB to the Run position and open the
switches.
6. Power up the unit.

12
User Interface
The aura-t is operated via a LCD touchscreen. The screen is backlit, the backlight
operates when the screen is touched.
Menu Tabs
The aura-t screen has three interactive menu screens which are selected via tabs at
the bottom of the touchscreen.
Tab
Function Monitor & Control
Fan Commission
Running Hours Setup
Name Run Mode Running Hours Setup Mode
Description Displays Fan Speed,
Air Temperatures and
Status. Gives access
to Fan Speed Setup
Displays the length
of time the HRV has
been running in
hours.
Gives access to RH
threshold, Overrun
Timers, Summer
Bypass, Passcode
settings, Filter Period
& Filter Reset. Eco
Mode & Switch Setup
in a Sub-Menu.
If passcode is enabled enter 3333 to activate the above menus.
Passcode Screen

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Run Mode
The aura-t controls the HRV unit’s 4 programmable speed settings.
This is the Run Mode screen; use the number buttons to select the required fan
speeds. Speeds 1,3 & 4 are on a one hour timer, after the hour has elapsed the HRV
will return to Speed 2.
The current running speed will be indicated by the corresponding number button
being highlighted.
Press and Hold the [1] or [2] button to enable boost Inhibit, the
Padlock icon will display to indicate Boost inhibit is active.
Pressing and Holding either the [1] or [2] button again will disable
Boost Inhibit.
Extract
Supply
Press the supply or extract buttons to cycle between fan speed
and temperature.
With fan speed selected the actual percentage speed of both fans is
displayed.
Selecting temperature displays the temperature of the air being
supplied from the atmosphere and extracted from the property.
Status Icons
If the fan speed is being controlled by an external switch, or sensor this is indicated by
an icon beneath the speed selection buttons being visible.
The icons are as follows:
An external switch is active and is holding the HRV at the indicated
speed. If this icon is ashing along with the Speed 3 button and the
backlight a switch has held the HRV in Boost for more than 2 hours
and Boost Alert is active.

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The speed the HRV is running at is being controlled by the internal
humidity sensor.
Other Icons
Other status icon that may be visible on the screen are listed below:
The lters need changing or cleaning, refer to the Settings Menu for
details of how to reset the timer.
Frost Protection, if this icon is constantly lit the temperature outside
is low and the speed of the HRV Supply Fan has been reduced to
prevent damage to the Heat Cell. If the Frost icon and backlight
are ashing the indoor temperature is low and both fans will have
stopped. Tap any of the fan speed number buttons to restart the
fans. If the temperature is still too cold, Frost Protection will be
activated.
Summer Bypass is in operation, air from outside is being supplied
directly to the property without recovering heat from the Heat Cell.
This is often accompanied by SUMMERboost®, both fans switch to
Speed 4 to increase the rate fresh air is supplied to the property and
stale hot air is extracted.
Press & Hold the [4] button to cancel SUMMERboost®.
The Boost Overrun timer is active and is holding the HRV at Speed 3;
this follows an external Boost switch being deactivated.
The padlock icon adjacent to the Speed 3 button indicates Boost
Inhibit is active. The HRV will not respond to external Boost switches
or the internal Humidity sensor; it is only possible to select speeds 1
or 2.
The warning icon ashing at the bottom of the screen adjacent to
the Fan icon indicates a fan or thermistor failure has been detected;
contact the installer. The corresponding icon will be ashing at the
top of the screen.
If very high temperatures are detected inside the HRV, fan failure
mode will be enabled to protect the HRV from damage.

15
Installation
Location
The aura-t should be mounted in position convenient for the householder and where
the supplied control cable will reach.
Fixing
1. Un-clip the front of the aura-t case from the Back Plate.
2. Thread the control cable through the hole in the Back Plate.
3. Fix Back Plate .
4. Connect the communication cable, see Wiring section.
5. Clip the front of aura-t to the Back Plate.
Connection to HRV
60
Fixing Holes
Wiring Access Hole

16
Wiring
The aura-t’s control cable will be supplied tted with a plug in connector for
connection to the HRV.
0V
12V
A
B
0V
12V
A
B
Red
White
Yellow or Green
Black
12V A B 0V
Red White Yellow or Green Black
Wire connection to HRV
Connection to aura-t
typical plug connection to HRV

17
Fan Commission
Commissioning
Fan Commission Mode is entered by pressing the Fan Button for 5
seconds whilst in Run Mode. The HRV’s fan speeds will be displayed.
A ashing item on the screen indicates it is being edited.
1. Select the required fan speed using the number buttons at the
left of the screen. The current fan speed is highlighted, the HRV
will run at the selected speed.
Extract
Supply
2. Use the Supply to dwelling or Extract from dwelling buttons at
the top of the screen to select which fan is to be adjusted.
3. Use the arrow buttons to adjust the fan speed. The fan will
respond in real-time to the adjustment being made.
4. Repeat the above for all fan speeds requiring adjustment.
5. When all of the fan speeds are correct tap the Save button to
write all the fan speed settings to the HRV and exit back to Run
Mode.

18
Cloning
Enter Fan Commission Mode by pressing the Fan button for 5
seconds whilst in Run Mode. The HRV’s fan speeds will be displayed.
Tap the Fan button to display the fan speeds stored on the aura-t.
The stored speeds can be viewed using the number buttons, the
HRV will run at the selected speed.
To copy the stored speeds to the HRV tap the Enter button, the arrow
buttons will be illuminated and the speeds could be adjusted as
detailed in Commissioning or simply written to the HRV by tapping
the Save button
Saving Fan Speeds to the aura-t
Extract
Supply
To save the current fan speed to the aura-t press and hold the
Supply or Extract buttons. The copy icon will be illuminated and
when save is tapped the fan speeds will be saved to the aura-t and
written to the HRV.
Copy
The aura-t could then be connected to another HRV and the stored
speeds written or Cloned to it as detailed above.
Cloning Saving Fan Speeds to the aura-t

19
Controller Setup
Enter key.
Exit Key.
Tap the Setup Mode tab to enter the Setup Mode menu.
All the editable settings in the Controller Setup menu are accessed in the same way.
Menu navigation is achieved by rst Setting Selection and then Editing.
Setting Selection
Arrow keys are used to select a setting, the setting will ash.
Tapping the Enter key will allow the setting to edited.
Tap the Exit button to return to Run Mode.
Setting Editing
Arrow keys are used to change setting value.
Tapping the Enter key whist editing will save and move to the
next setting in the list.

20
The order in which editable settings are displayed is as follows.
1. Humidity threshold
2. Kitchen Overrun timer.
3. Wet room Overrun timer.
4. Summer Bypass Setup.
5. Passcode Disable / Enable.
6. Filter Period
7. Filter Reset
If a lter change is required the reset ring will be ashing.
Tap the Enter key to reset or the Exit key.
If a lter change is not due but the lter timer requires
resetting press the Enter key twice. Reset the lter timer
if the Filter Period has been changed to initialise the new
period.
Tap Exit key to return to Run Mode.