Vaventis Fresh-r On-The-Wall User manual

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Maintenance Manual
On-The-Wall and In-The-Wall

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Preface
Dear customer,
Thank you for purchasing the Vaventis Fresh-r. The Vaventis Fresh-r is a decentral ventilation
unit with heat recovery. The Fresh-r takes fresh air from outside, while expelling old air. The
incoming fresh air is pre-warmed by the warm outgoing stale air.
There are two types of Fresh-r: in-the-wall and on-the-wall. Beside these two types there also
two variations: Fresh-r standard and Fresh-r Everywhere. This manual contains all the
information needed to quickly familiarize yourself with the product. We kindly ask you to
carefully read this information before using the product.
This manual is intended for the end user.
The information in this manual is important for the correct and safe use of the product.
With the table of contents, you will be able to find the right information in the manual quickly.
This is the original manual. Besides this manual there is also an installation manual available.
Some illustrations might differ from the actual model you have purchased.

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1. Intended use
The Vaventis Fresh-r is a decentral ventilation unit with heat recovery. The Fresh-r takes heat
from the stale air it expels and uses it to warm up the fresh air it brings in from outside.
It improves air quality for a healthy indoor air quality and at the same time reduces your energy
bill. No ducting is needed for this unit which makes installation easier than a conventional HRV
system.
The Fresh-r is equipped with CO2, RH and Temperature sensors and has an intelligent control
system and other than conventional HRV’s the Fresh-r also works efficient at sub zero
temperatures.
The Fresh-r functions in four modes:
I. Automatic mode
In the automatic mode the Fresh-r measures the CO2, RH, temperature, flows and uses
the measurements to calculate the efficiency and optimum airflow from each fan.
II. Dewpoint protection mode
This is a sub-mode of automatic mode. The Fresh-r enters this mode when necessary, to
avoid the formation of condensation on the walls and windows within your home. This
mode will be activated automatically upon detection that it is necessary.
III. De-snowing mode
In the defrost mode the Fresh-r de-freezes the heat exchanger by blowing warm air out,
so it can work again at optimum efficiency. Defrost mode cannot be entered into
manually. This mode will be activated automatically upon detection that it is necessary.
IV. Manual mode
In the manual mode you can change the fan speed in six settings by pressing the
buttons accordingly on the user interface.

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2. Target group
The manual describes how to use and maintain the Fresh-r. The Fresh-r may only be used
and maintained by people who understand the Fresh-r and understand this user manual.
3. General safety instructions
oDo not perform any maintenance activities other than those specified in this manual.
oDo not remove the electronical protection. The electrical components are hidden safely.
oMake sure the main switch is in OFF position when replacing the Heat exchanger.
oDo not put the main switch in ON position when the Heat exchanger is taken out.
oMake sure the main switch is in OFF position when replacing the fan assembly.
oDo not put the main switch in ON position when the fan assembly is taken out.
oMake sure the main switch is in OFF position when performing the maintenance
activities.
oDo not place any object in front of the Fresh-r (min. distance 50 cm). This hinders the air
flow.
oMake sure the CO2indicator is always green or orange. Open a door or/and window if
the CO2indicator is red.
oDo not clean the Heat exchanger with hot water (max. 40 degrees). This can damage the
Heat exchanger permanently
oDo not touch, brush or scrub the copper wire of the heat exchanger.

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Figure 1 Fresh-r main components
A. Door F. Heat exchanger clamp
B. Control panel G. Condensate shelf
C. ON/OFF switch (I is ON, 0 is OFF) H. Extract cover (Everywhere versions)
D. Fan assembly I. Filter (optional)
E. Heat Exchanger
4. Operating the product
How can I use the Fresh-r in automatic mode?
The Fresh-r will always enter automatic mode upon start-up. It will remain in automatic unless
the user switches it into manual mode.
In the automatic mode the Fresh-r measures the CO2, RH, temperature, flows and uses the
measurements to calculate the efficiency and optimum airflow from each fan.

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To ensure good air quality, make sure that:
oNo objects are placed in front of the Fresh-r (min. distance 50 cm)
oThe Fresh-r grilles are installed
oThe door of the Fresh-r is closed
How can I change the fan speed manually?
The Fresh-r starts in automatic mode. You can change the fan speed manually by selecting one
of the six fan speed settings.
To change the fan speed, do the following:
oOpen the door.
oTo increase the fan speed, press one or more times
on the large fan speed button.
oTo decrease the fan speed, press one or more times
on the small fan speed button.
oThe automatic indicator does not light up. After
approximately 2 hours the Fresh-r will return to
automatic mode.
oWhen the Fresh-r is operating in manual mode the fan
speeds will remain at the setting that has been selected.
oAutomatic mode can be reselected at any time by
pressing the top button on the control panel.
How can I set the Fresh-r in de-snowing mode?
You cannot manually set the Fresh-r in de-snowing mode. The Fresh-r will only start the de-
snowing mode when necessary.
How can I set the Fresh-r in Dewpoint protection mode?
You cannot manually set the Fresh-r in dewpoint protection mode. The Fresh-r will only start the
dewpoint protection mode when necessary.
Figure 2 Control panel user interface

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5. What do the symbols and buttons on the control
panel mean?
The automatic indicator indicates the type of mode that the Fresh-r is operating in
There are two modes:
oAutomatic mode
oManual mode
The different modes are explained in the table below.
Type of mode
Automatic indicator
Explanation
Automatic mode Light is on In the automatic mode the Fresh-r measures the
CO2, RH, temperature, flows and uses the
measurements to calculate the efficiency and
optimum airflow from each fan.
Sub mode -
Dewpoint protection
mode
Light is on In the dewpoint protection mode, the Fresh-r will
ventilate harder to remove excess humidity to
avoid the formation of condensation. You cannot
set the Fresh-r manually into dewpoint
protection mode
Sub mode Defrost
mode Light is on In the defrost mode the Fresh-r de-freezes the heat exchanger by blowing warm air out, so it
can work again at optimum efficiency. The
Fresh-r can only start automatically in a defrost
mode. You cannot set the Fresh-r manually into
defrost mode
Manual mode Light is off In the manual mode, you can change the fan
speed manually by pressing the raise or lower
fan speed button – see fig. 2 on page 5

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What does the automatic button do?
Pressing the automatic button activates the automatic mode.
What do the fan buttons do?
You can change the fan speed manually. When you set a manual fan speed the Fresh-r will enter
manual mode. It will remain in manual mode for 2* hours unless it is put back into automatic
mode by the user.
What do the air flow indicators mean?
The six lights indicate the speed of the air flow. You can set the air flows in the following speeds:
Air Flow
Indicator Lamp
100% flow
6
th
upper air flow indicator lamp
85% flow
5
th
air flow indicator lamp
70% flow
4
th
air flow indicator lamp
55% flow
3
rd
air flow indicator lamp
40% flow
2
nd
air flow indicator lamp
25% flow
1
st
lower air flow indicator lamp
What do the smileys mean?
The smileys indicate the amount of CO2in the air
Type of Smiley
Colour of smiley
Meaning
Upper smiley
RED
Poor air quality
>2400 PPM CO2
Middle smiley
ORANGE
Medium air quality
>1200 PPM CO2
Lower smiley
GREEN
Excellent air quality
<1200 PPM CO2

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6. What to do when a smiley lights up?
What to do when a smiley is continuously red?
If the smiley is red, the level of CO2in the air is a lot higher than intended. Do the following:
oOpen a window and/or door for fresh air.
oClose the window and/or door when the smiley is orange or green.
What to do when a smiley is orange?
If the smiley is orange, the level of CO2in the air is higher than 1200 ppm. You do not need to
perform any actions. The Fresh-r will automatically increase its ventilation capacity to reduce
the CO2 concentration.
What to do when a smiley is green?
If the smiley is green, the level of CO2in the air is below 1200 ppm. You do not need to
perform any actions.
How to perform software reset?
In case of malfunction, it is recommended to reset the software. To reset the software, switch the
Fresh-r off and on again using the toggle switch on the control panel – see item “C” on fig. 1
page 4.

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7. Connect the Fresh-r to the internet
By connecting the Fresh-r to the internet you will benefit from automatic software updates. You
will also have access to data graphs showing actual performance values of the air temperature
and quality.
To connect your Fresh-r to the internet do the following:
oSwitch power of the Fresh-r OFF and switch the power ON again.
oWait for approximately 90 seconds until the unit starts to run and the CO2
indicator is illuminated.
oPress the middle button (increase fan speed) for approximately 15 seconds and release -
you will hear a beep. This indicates that the Fresh-r has entered WiFi access point mode
The following actions must be done with your smartphone, laptop or tablet.
Do the following:
oStart your device and go to settings.
oSelect WiFi
oSelect WiFly-EZX-XX of the list of WIFI devices.
oYour device will now connect to the Fresh-r WIFI module.
oOpen an internet browser, for example Google chrome.
oType 192.168.1.1 and confirm.
The Microchip settings page opens.
oSelect the Network cfg tab.
oPress refresh List.
oA list with Available Access Points will show.
oSelect your own router by its name.
NOTE
If your router name has spaces in it: for example “my router”,
the connection will fail. In that case, please change the name (SSID)
of your router to, for example,“myrouter”. For more information see
the manual of your router. After you have selected your router, a list
of technical details will show. Examine the value of RSSI: the RSSI
value should be at least -70dBm (eg -80 dBm).