Ventis Controller User manual

Instruction Manual
A detailed explanation of the functions and features of your new Ventis system
AUTO
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1800 80 20 80
18
47 %RH
MID

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The operating philosophy of Ventis is simple, “to introduce as much clean, dry
and filtered air as possible into your home whilst contributing to your comfort”.
This means that in winter, whenever the roof cavity is warmed by the suns energy,
the heating symbol will come on and your Ventis will introduce this freely heated
air and circulate it throughout your entire home.
On hot summer nights, the Ventis system will draw in the cool air to provide
cooling and help you get a good night’s sleep.
You can call us at any time on 1800 80 20 80 should you require help with your
Ventis Home Ventilation system.
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•
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The Team at
Important
Safety Instructions:
This appliance is not intended for use
by persons (including children with
reduced physical, sensory or mental
capabilities, or lack of experience
and knowledge, unless they have
been given supervision or instruction
concerning use of the appliance by
a person responsible for their safety.
Children should be supervised to
ensure that they don’t play with the
appliance.
DO NOT attempt to modify or repair
the appliance yourself –there are no
user serviceable parts. If the supply
cord is damaged, it must be replaced
by the manufacturer, its service agent
or similarly qualified persons in order
to avoid a hazard.

Index
Controller Main Screen
Mode and Air Source Symbols
Introduction
Modes
Menus
Modes
Air Sources
Accessories
Other Information
Maintenance
3
4
5
6
9
11
14
15
17
19
20
AUTO / FLUSH / OFF
Explained
Modes Drying / Heating & Cooling / Ventilation
(LO / MID / HI) 14
Controller
Button Functions:
Increase Set Point / Select Item Above
Decrease Set Point / Select item below
Exit Menu / Return to previous screen
Enter Menu / Increment Value
Scroll between operating modes
OFF > AUTO > FLUSH > OFF

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Your controller main screen - what it all means
Operating Mode
OFF / AUTO / FLUSH / ERROR
User Set Point
Adjustment form 14 C to 28 C
Hidden when in FLUSH mode
Maximum Fan Speed
25 / 50 / 75 / 100
Animated fan
Visible when the
System Fan is running
Selected
Circulation Level
LO / MID / HIGH
Fan speed bar graph
Filter Change Warning
Auto Whirly Status
Only displayed if fitted
Room Temperature
Relative Humidity
Source Temperature
Appears in multiple locations
Air Source Display
Shows currently selected source,
Colour indicates mode
Enabled Modes
DRYING / HEATING / COOLING /
VENTILATING
Error Display
An error condition
has been detected

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Mode and Air Source Symbols
DRYING
HEATING
COOLING
VENTILATING
HEATING ACTIVE
HEATING ENABLED
HEATING DISABLED
FILTER CHANGE DUE
FILTER CHANGE OVERDUE
FAULT HAS OCCURRED
MODE DISPLAYS AIR SOURCE DISPLAYS

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Introduction
Your Ventis is smart enough to be fully functional whilst fully automatic. Most
of the time it will be operating in the default factory settings in “Auto” mode.
The default settings you have been supplied are the ones we are confident are
best for the environmental conditions in the region you have chosen to live,
but we cannot accurately assess each and every personal preference.
To make any changes in the settings first wake up the control panel by pushing
any button. The controller will light up to its brightest setting when it is activated.
AUTO MODE means the Ventis is On and will operate Automatically.
FLUSH MODE means the Ventis fan will run at maximum speed for up to two hours.
OFF MODE is a manual override setting and means the Ventis is off regardless of
your setting and roof space temperature. The Ventis will remain Off until another mode
is selected.
Each of these modes can be accessed by pressing the Main Power button to
toggle through each option.
The Ventis will scroll through AUTO - FLUSH - OFF.

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AUTO Mode
AUTO indicates that the Fan will activate when a desirable air source (the most
suited to achieving your desired temperature set point) is available.
The fan and fan speed bar graph will appear when the fan is on along with
Heating/Cooling or Ventilating icons show the reason the fan is running. The
source will be displayed.
Increase Set Point
Decrease Set Point
To Source Humidity Display
To Main Menu
Change to Flush

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FLUSH Mode
FLUSH will cause the fan to work at full speed for up to two hours. Great for
flushing out odours or if there is excess moisture in the home (burnt toast,
cooking smells, steam cleaning, etc).
The fan bar graph will appear at max speed. You can change the FLUSH
mode air source as shown below.
The source will be displayed.
The set Point is ignored and is hidden.
Change to previous source
Change to next source
To Humidity Display
To Main Menu
Change to OFF Mode
MID

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OFF Mode
OFF indicates the Fan, Auto Whirly and Dampers are disabled.
Room temperature and Humidity continue to be displayed.
The set Point is displayed and may be changed.
Increase Set Point
Decrease Set Point
To Humidity Display
To Main Menu
Change to AUTO Mode

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Menus
Main Menu
The Main Menu is used to gain access to various
sub-menus. To get to the main menu simply press
the button from any main mode screen.
• Set modes
• Fan Speeds
• Filter Details
• Settings
• Installation
The highlighted menu will be selected when the right
arrow is pressed. Three dots, known as an ellipsis
(…) indicate a sub-menu is available on this line.
Please see all sub-menus explained on the following
pages
Select item above
Select item below
Exit to Main Screen
Enter selected menu
Set Modes Menu
The Mode Menu is used to enable or disable Drying,
Heating, Cooling and Ventilation Modes.
• Drying
• Heating
• Cooling
• Ventilation
• Boost
Select item above
Select item below
Exit to Main Menu
Change selected value
*See page 14 for circulation levels explained.
DRYING
HEATING
COOLING
VENTILATION
BOOST
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Fan Speeds Menu
The Fan Speed Menu is used to set the maximum
available fan speeds in the Heating and Cooling
Modes.
• Drying
• Heating
Available Maximum Fan Speeds are: 25%, 50%, 75%
and 100%. By pressing the Right Arrow will change the
selected item
Ventis Recommend 100% fan speed unless otherwise
advised by any Ventis service technician.
Select item above
Select item below
Exit to Main Menu
Change selected value
Filter Details Menu
The filter life remaining is displayed as a percentage
from 100% down to 0%.
Your screen will now show % filter life remaining.
100-20 Filter
OK 19-1 Filter Change Due
0 Filter Change Overdue
The Filter Reset Menu is enabled by pressing the
and buttons simultaneously. Once highlighted the
filter life can be reset.
Exit to Main Menu
*See also page 19 for filter change requirements

Select item above
Select item below
Exit to Main Menu
Change selected value
*See drying mode page 12
for suggested set point
Select item above
Select item below
Exit to Main Menu
Change selected
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Settings Menu
The Settings Menu is used to set various user preferences:
Display Brightness is the illumination used
when the display is inactive.
Display Delay is the time (in seconds) before
the display becomes inactive.
Auto Whirly (if applicable) enables or disables
the Auto Whirly fan.
Set point is the room relative humidity above
which drying is enabled.
Installation Menu
The Installation Menu allows the User to observe details
about unit operation:
Fault Code Fault Code is any previously cleared
error code, normally 0.
Product It displays the installed product configuration
ie: CO = Ceiling/Outside
Configure [no longer showing on V2.43 and above]
Live Test Live test runs through an automatic test of
all attached components of the system, this is usually
only run upon installation and when accessories are
added.
low
DSP BRIGHT
0
FAULT CODE
C
PRODUCT
CONFIGURE...
LIVE TEST...
30
DSP DELAY (s)
50
HUMIDITY SPT
AUTO WHIRLY
C = Ceiling O = Outside
T = Transfer F = Floor
The firm-ware version
number is displayed at the
bottom of the screen

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Modes - Drying / Heating & Cooling / Ventilation / Boost
DRYING (Available in version 2.31, 2.32, 2.33 & 2.40)
Enable Drying when your room is too damp.
The Humidity Set point must be set to the desired level. When Drying is enabled and the Room
Humidity is higher than the Humidity Set point, drying mode will inhibit operation of the fan to
prevent incoming air increasing the room moisture level.
The following Humidity Set points may be used as a guide:
40%: Very dry, this is for condensation problems in cold climates.
50%: Dry, this is for condensation problems in temperate climates.
60%: Low level drying, will reduce moisture to normal levels.
70%: This would only be considered a drying level in tropical regions.
IMPORTANT:
Depending on the moisture in your room, your environment and the Humidity Set point you have chosen,
Drying Mode may significantly reduce the Heating and Cooling benefits of the Ventis system. It should only
be used when condensation or moisture is a problem.
To set the humidity Set Point:
If you home do not have excess moisture problems then the Humidity Set point may be left at 50% and the
Drying Mode turned off.
If you wish to reduce the moisture level in your home turn Drying Mode on.
Now take note of the room Relative Humidity (%RH) between noon and 6pm on any given day, then adjust
the Humidity Set point to around 10% lower or nearest available value.
HEATING & COOLING
Enable Heating during the winter months to allow your Ventis system to heat your home. This
mode enables your Ventis to draw warmer air (when available) from the installed sources
whenever the room is colder than the Temperature Set point. Heating mode may be overridden
by Drying mode.
Enable Cooling during the summer months to allow your Ventis system to cool your home. This
mode enables your Ventis to draw cooler air (when available) from the installed sources whenever
the room is hotter than the Temperature Set point. Cooling mode may be overridden by Drying
mode.

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VENTILATION
Enable Ventilating mode if your room is very stuffy, stale or damp. This mode allows
your Ventis to draw in fresh air on a continuous basis with the fan speed automatically
varying depending on the temperature set point, room and source air temperatures
and humidities. This mode may be overridden by Drying mode.
Ventilating mode could make your room slightly hotter or colder, as fresh air may be
drawn in at low speed that shifts the room temperature away from the desired set point.
IMPORTANT:
Extended use of Ventilating mode (particularly with Hi Boost) could increase your energy bills by
competing with other heating or cooling systems in your home.
BOOST
Set the Boost level to increase the activity of your Ventis system.
LO: This mode is a lower airflow setting, and creates the benefit of low energy usage.
MID: This is the normal Ventis mode, suitable for the majority of homes.
HI: Use this boost level if you are experiencing very damp conditions.
*See also page 14 for more detailed explanation of the circulation (BOOST) modes
MID

14
Circulation Levels
LO/ECO/C1 Mode
In this mode, the Ventis will only operate
when the roof space is at least 2 degrees
more desirable than your home but
taking your house temperature towards
your Set Point (SP).
*LO, ECO or 1 depends on which
software version you have.
MID/C2 (Normal Ventis Mode)
In this mode, the Ventis will only operate
when the roof is at least 1 degree more
desirable than your home but taking
your house temperature towards your
Set Point. It takes a further 2 degrees for
the fan to ramp up to 100% operating
speed.
HIGH/C3
In this mode, the Ventis will only operate
when the roof is at least 1 degree more
desirable than your home but taking
your house temperature towards your
Set Point. It takes a further 1 degree for
the fan to ramp up to 100% operating
speed.
Selected MID
Circulation Level
LO(ECO) / MID / HIGH
*Circulation HIGH is desirable for homes suffering from Condensation and severe
Mould growth. Once the home has dried out and the mould source has been remedied
then it is advised to set your Circulation level to LO to maintain the best results and
contribute to your homes Heating and Cooling requirements.
To adjust your circulation level, visit the Modes Menu via the Main Menu screen.
MID

15
Air Source Displays
You can easily see the temperature and relative humidity of your available air sources
through the Source Humidity Display. From any main mode screen press the button
to reach Humidity Display.
HUMIDITY Display
The Source Humidity Display
shows the relative humidity
measured at each available air
source. The room relative hu-
midity and Humidity Set Point
are also displayed. All values
are in % Relative Humidity
Ceiling
Outside
Transfer
Floor
Back to Main Screen
Back to Main Screen
To DEW PT display
Back to Main Screen

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Dew Point Display
The Source Dew Point Display
shows the calculated dew point
temperature for each available
air source. The calculated room
dew point is also displayed. All
values are in Celsius.
Ceiling
Outside
Transfer
Floor
Back to Main Screen
Back to Main Screen
To ABS Display
To HUMIDITY Display
Source Absolute Humidity Display
The Source Absolute Humidity
Display shows the calculated
water content of each
available air source. The
calculated room water content
is also displayed. All values
are in grams of H2O per cubic
metre. (g/m3)
Ceiling
Outside
Transfer
Floor
Back to Main Screen
Back to Main Screen
Back to Main Screen
To DEW PT Display
ABS (g/m3)

Optional Accessories
Auto Whirly
The Auto Whirly is an optional accessory and can be added to your Ventis at any time. The Auto
Whirly is designed to extract the hot air from your roof space on a hot summers day and draw
in the cool air from outside when the sun goes down to accelerate the cooling capabilities of the
Ventis at night.
When an Auto Whirly is fitted, it is activated and wired up to your controller by the Ventis Install team,
so there is nothing on the control panel that you need to worry about to get it operational. It is fully
automatic and will only operate when the roof cavity is too warm to provide any cooling benefit.
Your Auto Whirly is working when you see the
small fan icon on the right of the roof image.
You will see it in operation through the warm
summer months when it helps cool your home
by purging unwanted heat from your roofspace.
You will not see it operating at all through the
winter when we want to save the warm air
and provide that to help with your heating
requirements.
17
MID

Auto Cooler
The Auto Cooler is an optional accessory and can be added to your Ventis at any time.
The Ventis Auto Cooler has temperature and humidity sensors that operate dampers to choose the
best source of air for either cooling or warming your home.
Typically, in summer the Auto Cooler will choose the outside source (eave or roof vent) for cooling
your home at night when the sun goes down. During winter, the dampers will switch to the roof to
harvest the warm air inside the roof space.
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Other information
Working with existing heating/cooling systems
If the house has additional heating and cooling
systems it is important that the Ventis System
is set between 2ºC and 4ºC higher than the
Ventis set point. This will enable Ventis to work
more than your artificial Heat and or Cooling
system, which you can manually Heat and Cool
at any time. High circulation levels are likely to
increase supplementary heating and cooling
costs as external air is drawn into the home. Set
your desired temperature from the main AUTO
Mode screen by pressing the up and down
arrows on the right side of the controller panel.
Winter and Summer Operation
In winter: Cooling should be disabled
In summer: Heating should be disabled.
This will prevent the Ventis System competing
with other air heaters or coolers. Control
Heating and Cooling modes from the Modes
Menu.
A step by step instruction video is available
on our web site www.ventis.com.au on how to
change the setting from Winter to Sumer
Filer Change Requirement
Filters need replacing approximately every 12
months. The system will let you know when it’s
time for a filter change. You can change the
filter yourself or get a helpful Ventis technician in
to do it for you. A DIY filter change instructional
pdf will be available for download from the
website - www.ventis.com.au. We do however
advise that every alternate year a service
technician does come out and change your filter
and check your system.
Filter Change Due
Filter Change Overdue
The desired set temperature
DRYING
HEATING
COOLING
VENTILATION
BOOST
o
o
MI
D
MID