Low-energy ventilation unit with heat recovery and
demand-controlled automatic melting
Operating, maintenance and technical
instructions
9
8
2
7
6
3
1
5
4
The fi gure shows the R model
1011
TECHNICAL DATA
Electrical connection 230 V, 50 Hz, ≈ 5.1 A (plug)
Degree of protection provided by enclosures IP 34
Fans Extract air 89 dm
direct current (DC) Supply air 86 dm
Heat recovery Cross-counter fl ow cell, > 80%
Heat recovery bypass Automatic
Electric post-heating unit (standard) 900 W 3.9 A
Filters Supply air G4 and F7
Extract air G4
Weight 53 kg
Ventilation power adjustment - Control panel control
- CO
- Remote monitoring control (voltage signal)
Options - CO
- %RH sensor
- Insulated attic fl oor penetration plate
- Ceiling mounting plate Vallox 096
12
3
/s 100 Pa
3
/s 100 Pa
and %RH control
2
sensor
2
Page 2
Vallox
096
SE
Operating instructions VALLOX 096 SE
For indoor air to stay healthy and benefi cial also for the structures of
the dwelling, ventilation has to be in operation continuously. It is not
advisable to stop ventilation even for longer holidays because it makes
indoor air stuffy. Also, during the heating season indoor air humidity
may condense in the ducts and structures and therefore cause humidity
damage. The sensors automatically adjust ventilation to an optimal
level even if the dwelling is empty.
Making the unit ready for operation
1. Connect the plug to the mains supply. VALLOX 096 SE is now
ready for operation.
2. Start the unit and choose a suitable ventilation power at the
control panel. There is either one or more control panels. See the
operating instructions for control panel.
In normal conditions basic ventilation, with a change of air every
two hours, is suffi cient in living areas. Boosting is needed during for
example sauna baths, cooking, clothes washing or family parties. If
carbon dioxide and/or humidity sensors have been installed in the
system, VALLOX 096 SE automatically takes care of demand-controlled
ventilation.
Ventilation control
The unit can be controlled with a control panel. The standard weekclock control can be used to control the fan power of the unit and the
setpoint for supply air temperature.
Furthermore, demand-controlled ventilation can be adjusted with
optional carbon dioxide and humidity sensors.
The fan power of the unit can also be controlled with a voltage signal.
Controlling ventilation with Vallox Digit SED
control panel
The control panel can be used for the following
ventilation control functions:
OPERATING INSTRUCTIONS
1 Automatic humidity setting, which is suitable for controlling
humidity in for example washing rooms.
The program records current humidity level and selects it as
the setpoint, which it then uses as the target for drying air in a
bathroom, for instance after a shower. The setpoint automatically
varies for instance according to season and is always at the right
level. This setting is factory selected.
2 Humidity level can also be set fi xed. The setting can range
between 1...99 %RH and is set at the control panel. This can
be used in for example public saunas and swimming pools. The
program aims at keeping humidity at the setpoint. The setpoint
can be changed if needed. The mode of adjustment is chosen at
the controller. Recommended humidity content of good indoor air
is approximately 45%.
• During this control, the control panel can be used to raise fan
speed to the maximum fan speed and to decrease it to the base
fan speed.
• In humidity control, fan speed varies between the base and
maximum fan speeds selected.
• When the unit is fi rst taken into use with automatic setpoint search
enabled (factory setting), it takes 3 to 10 hours for the program
to defi ne the value. During this time, humidity adjustment is not
enabled (because the fi rst value, selected at the factory, is 100%).
• Automatic search is enabled even if humidity control is not
selected.
Controlling ventilation with voltage signal
• VALLOX 096 SE fan power can be controlled with a voltage
signal coming from remote monitoring.
• The signal can be used to select speeds 0 to 8. However, if
Functions for adjusting ventilation
power
• Starting and stopping.
• Power adjustment (8 positions).
• Setting the base fan speed and the
maximum fan speed.
Ventilation power cannot be set lower than the
base fan speed. When carbon dioxide and/
or relative humidity adjustments are activated,
power cannot be adjusted higher than the maximum fan speed. When
humidity and carbon dioxide adjustments have been switched off, fan
speed can be raised to speed 8. (See the operating instructions for
control panel, Section 3.25.)
Ventilation control with carbon dioxide sensor
(option)
• In carbon dioxide control, VALLOX 096 SE adjusts fan speed so
as to keep carbon dioxide content in the ventilation zone below
the setpoint. When two or more sensors are used, fan speed is
adjusted according to the highest measuring result.
• 1 to 2 carbon dioxide sensors can be connected as options to
the VALLOX 096 SE unit.
• The adjustment is switched on/off and, if needed, the setpoint
(500...2000 ppm) is set at the control panel. The factory setting
is 900 ppm. The recommended maximum carbon dioxide
content in good indoor air is circa 1,000 ppm.
• During control, the control panel can be used to raise fan speed
to the maximum fan speed and to decrease it to the base fan
speed. In carbon dioxide control, maximum fan speed limitation
is enabled.
Controlling ventilation with humidity sensor (option)
There are two modes of adjusting fan speed:
Carbon dioxide and humidity sensors
carbon dioxide or humidity adjustment is enabled, the maximum
fan speed cannot be exceeded. (See the operating instructions for
control panel, Section 3.25.)
• The signal changes the base fan speed.
• The signal does not lock fan speed, i.e. fan speed can be
changed at the control panel within the set limits. Carbon dioxide
and humidity adjustment also operate within the set limits.
Voltage signal values
Voltage values for each fan speed:
0 0.20...1.25 VDC
1 1.75...2.25 VDC
2 2.75...3.25 VDC
3 3.75...4.25 VDC
4 4.75...5.25 VDC
5 5.75...6.25 VDC
6 6.75...7.25 VDC
7 7.75...8.25 VDC
8 8.75...10.00 VDC
What the units include can vary depending on the sales area.
Page 3
Vallox
OPERATING INSTRUCTIONS
Adjustment of supply air temperature
and summer/winter function
The temperature of air coming to the dwelling can be adjusted between
circa +10 °C and +30 °C. When there is a light on the post-heating
indicator, post-heating is activated and the unit heats air as needed.
The need for heating depends on the setpoint of supply air temperature.
When there is no light on the post-heating indicator, post-heating is off.
This means that the summer function is activated for the ventilation unit.
The unit has a motorised summer/winter function. When the summer
function is on, the heat recovery cell is bypassed as soon as outdoor
air temperature has risen above the setpoint. See the setpoint for cell
bypass, factory setting +12 ºC. When outdoor air temperature goes
below the setpoint (factory setting +12 °C), the unit starts to recover
heat.
Two different kinds of supply air temperature adjustment can be
chosen at the unit: constant temperature control or cascade control.
In constant temperature control, the unit controls the temperature of
supply air directly in accordance with the measurement information
on the temperature of supply air blown to the ventilation area. In
cascade control, the unit controls supply air temperature according
to the temperature of air extracted from the ventilation area. The unit
calculates the difference between the air extracted and the setpoint for
supply air and uses this difference to control the need for post-heating.
Winter function of ventilation unit
A set of parameters has been set at the factory for the freezing of
the heat recovery cell (3.21 and 3.22).When these parameters are
undercut, the ventilation unit melts the heat recovery cell utilising the
heat of extract air.
Melting is done by stopping the supply air fan (3.20. Choosing melting
mode) or by bypassing the heat recovery cell on the supply air side
(factory setting).
If the bypassing the heat recovery cell is chosen as the melting mode,
the relationship between the supply and extract air fl ows does not
change. This prevents the formation of a vacuum inside, which may be
harmful in some cases. In this case the electric resistor heats the cold
air coming from outside during the melting period to the temperature
desired (2.6. Setting supply air temperature). If the temperature desired
is high compared to outdoor air temperature, the unit decreases the
supply and extract air fl ows in order to attain the desired supply air
096
Remember!
Switch post-heating off when it starts to get too warm
in the dwelling because of warm weathers.
Switch post-heating on again when it gets cooler in
autumn.
Post-heating indicator light
Maintenance reminder
symbol
SE
Maintenance reminder
• The maintenance reminder switches on the maintenance
reminder symbol (
at defi ned intervals, the factory setting being 4 months.
• The maintenance reminder symbol is acknowledged at
the main display of the control panel. (See the operating
instructions for control panel, Section 3.1.)
• The interval can be set between 1 and 15 months at the
control panel.
temperature.
A normal melting period varies from 15 to 45 minutes depending on
the amount of ice and the volume of the extract air fl ow.
The unit operates optimally on the factory settings in normal operation
in dwellings and detached houses. The parameters only need to be
touched in extreme problem situations. Examples of such situations are
high humidity loads such as a swimming pool or if there is a detrimental
amount of ice in the exhaust air duct.
) on the main display of the control panel
Fireplace switch function/booster
Fireplace switch function
(See the operating instructions for control panel, Section 3.12.)
• The fi replace switch stops the extract air fan for 15 minutes and
produces overpressure in the ventilation zone. This makes it easier
to light a fi replace.
The function is started on the main display of the control panel by
simultaneously pressing and holding down the + and – buttons for
2 seconds.
• The function can also be started at a separate auto-reset push-
button switch, wired from the connection box of the unit for
example to a wall in the fi replace room. Upon each pressing,
the stopping function continues for 15 minutes (the switch is not
included in the delivery).
• During the function, the fi replace/booster switch symbol (
visible on the main display of the control panel.
NOTE! The starting of the extract air fan may weaken
draught in the fi replace! In winter, this situation may
disturb the winter function of the unit. The situation will
normalise in a while, after the fi replace function stops.
Fireplace/booster switch symbol
) is
Booster switch function
(See the operating instructions for control panel, Section 3.12.)
• The booster switch function raises fan speed to the set maximum
fan speed for 45 minutes.
The function is started on the main display of the control panel by
simultaneously pressing and holding down the + and – buttons for
2 seconds.
• The function can also be started at a separate auto-reset push-
button switch, wired from the connection box of the unit to for
instance a wall in a classroom. Upon each pressing, the boosting
function continues for 45 minutes.
• During the function, the fi replace/booster switch symbol (
visible in the main display of the control panel.
• The function is chosen at the control panel.
Fault signal relay (remote monitoring)
• The fault signal relay has potential-free contacts
(24 VDC, 1 A).
• The contacts provide information on various failure modes of
the unit.
• Alarm of high carbon dioxide content switches the relay at
1-second intervals.
• In other fault situations, the contacts are closed.
Press the button to turn the ventilation unit on and off.
When the indicator is lit, the unit is on.
2
Carbon dioxide adjustment
Press the button to turn carbon dioxide adjustment on and
off. When the indicator is lit, the adjustment is on.
3
Humidity adjustment
Press the button to turn humidity adjustment on and off.
When the indicator is lit, the adjustment is on.
4
Post-heating
Press the button to turn post-heating on and off. The
summer function is on when the indicator is not lit.
Ventilation operating menus
2. Operating menu
2.1. Main display and change of fan speed
The displays of the Operating menu (Sections 2.1–2.6) can be scrolled with the scrolling buttons
(see Section 1, fi gure items 5 and 6).
1
21C10:20
Main display
Main display
Fan speed can be changed in this display with the +
and – buttons (see Section 1.1, fi gure items 7 and 8).
3
Fan speed (3).
21
Supply air temperature (21°C).
10:20
Time.
Filter guard alarm.
Maintenance reminder alarm.
Fireplace/booster switch on. The fi replace/booster switch is
activated in this display by simultaneously pressing down the
+ and – buttons for 2 seconds.
Week-clock control on.
OPERATING INSTRUCTIONS FOR CONTROL PANEL
Scrolling up
5
With this button you can scroll the displays upward.
6
Scrolling down
With this button you can scroll the displays downward.
7
Increase button
Use this button to increase values.
8
Decrease button
Use this button to decrease values.
Power failure
After a power failure, the unit starts at minimum fan speed.
The adjustments and setpoints chosen will remain in the
memory of the unit in spite of the power failure.
2.2 Moving to the Settings menu
I
To settings menu
see manual
2.3 Week-clock control
Week program
on
2.4 Content display
RH 35% RH2 40%
CO2 0821 PPM
2.5 Temperature display
Out 20 in 20
Sup. 20 Exh. 20
2.6 Setting supply air temperature
Temp. setting
20C
n order to move to the Settings menu,
press the + and – buttons simultaneously.
In the Settings menu you can change
setpoints for the ventilation unit.
Week-clock control can be switched
on with the + button and off with the –
button. Week-clock control is on when
the week-clock control symbol is in the
main display. In week clock control,
the base fan speed and supply air
temperature of the unit are adjusted in
accordance with the programme as
described in Section 4.1.
The content display shows humidity
and carbon dioxide content. The
corresponding sensors are required
(options).
The temperature display shows the
temperatures of outdoor air, indoor air,
supply air and exhaust air. The accuracy
of the temperature sensors is ±2 °C.
Supply air temperature is changed with
the + and – buttons.
3. Settings menu
3.1 Resetting maintenance reminder
Mainten. reset
Press + and –
3.2 Choosing maintenance reminder interval
Maintenance rem.
04
You can move to the Settings menu from the Operating menu as described in Section 2.2
The displays of the Settings menu (Sections 3.1–3.29) can be scrolled with the scrolling buttons (see Section 1.,
items 5 and 6 in the fi gure).
The maintenance reminder is reset
by pressing the + and – buttons
simultaneously. This turns out the
maintenance reminder symbol (
main display.
The interval for the maintenance
reminder is selected with the + and
– buttons. The maintenance reminder
interval refers to months.
What the units include can vary depending on the sales area.
The desired language is chosen with the
+ and – buttons.
You can adjust time by simultaneously
pressing the + and – buttons. See
separate instructions in 4.2.
Page 5
Vallox
OPERATING INSTRUCTIONS FOR CONTROL PANEL
3.5 Week programme programming
Adjust wk. prog.
Press + and -
3.6 Erasing week programme
Erase wk. prog.
Press + and -
3.7 Choosing basic humidity level
Rh-level setting
automatic
3.8 Basic humidity level setpoint
Basic %RH level
40%
3.9 Changing setpoint for carbon dioxide adjustment
CO2 setting
0900 PPM
3.10 Adjustment interval
Adjust interval
10
3.11 Changing operating temperature of
heat recovery cell bypass
Cell bypass
10C
3.12 Mode of operation of fi replace/booster switch
Switch type
fi replace switch
3.13 Address of control panel
Panel address
1
3.14 Contrast of control panel display
Display contrast
05
3.15 Restoring factory settings
Factory settings
see manual
3.16 Choosing cascade adjustment for supply air
temperature
Cascade adjust
off
To go to the week-clock programme
programming mode press the +
and – buttons simultaneously. See the
instructions in 4.1.
You can totally erase the week
programme by pressing the + and –
buttons simultaneously.
The basic humidity level can be chosen
as either automatic or manual.
The selection is done with the + and –
buttons.
The desired setpoint is chosen with the +
and – buttons when manual adjustment
has been selected as the Rh level setting
(humidity setting, Section 3.7).
The setpoint for CO2 adjustment is
chosen with the + and – buttons.
The adjustment interval for humidity and
carbon dioxide adjustments is selected
with the + and – buttons. The adjustment
interval refers to minutes.
The desired cell bypass temperature
is selected with the + and – buttons. If
outdoor temperature is lower than cell
bypass temperature, the summer/winter
damper is in the winter position.
The mode of operation of the switch
(either fi replace or booster switch) is
selected with the + and – buttons.
The address of the control panel is
changed with the + and – buttons. Two
control panels cannot have the same
address. If control panels have the same
address, they go to bus fault state and
do not work.
The contrast setting for the control panel
display is changed with the + and –
buttons.
The general factory settings can be
restored by pressing the + and – buttons
simultaneously. Remember to ensure that
the setpoints are in accordance with the
factory settings for this unit.
Cascade adjustment is chosen to be on
or off with the + and – buttons.
3.17 Choosing post-heating for the unit
Radiator type
Electric rad.
3.18 Choosing additional heater for unit
Extraheater type
Electric rad.
3.19 MLV additional heater setpoint
MLV winter temp
0C
3.20 Choosing melting mode
Defrost mode
bypass
3.21 Winter parameter A
Winterparam. A
Increasing the value decreases the freezing of the HR cell. The unit operates
optimally on the factory settings. There is no need to adjust this setpoint
except in extreme problem situations, and even then it is advisable to
contact Vallox Maintenance. The adjustment is made with the + and –
buttons. See the table for the factory setting.
3.22 Winter parameter B
Winterparam. B
Decreasing the value decreases the freezing of the HR cell. The unit
operates optimally on the factory settings. There is no need to adjust this
setpoint except in extreme problem situations, and even then it is advisable
to contact Vallox Maintenance. The adjustment is made with the + and –
buttons. See the table for the factory setting.
3.23 Setting base fan speed
MIN speed
1
3.24 Choosing maximum fan speed
MAX speed
8
3.25 Mode of operation of maximum speed setting
MAX speed limit
with adjustments
096
A water or electric radiator is selected
with the + and – buttons, depending on
the type of post-heating radiator the unit
is equipped with. Note! Choosing the
wrong type of post-heating may cause a
faulty post-heating function.
An electric or MLV radiator is chosen
according to ventilation unit type with the
+ and – buttons. This unit can be used
only for electric heater setting
Changing MLV radiator setpoint. When
outdoor air temperature goes below this
setpoint, the ventilation unit starts the MLV
pump. If a message “Preheating not in
use” is displayed, no setpoint is in use.
Choose one of the two modes of melting
to be used in the unit. Melting is done
either by stopping the supply air fan or by
bypassing the HR cell.
The winter function of the unit is
adjusted from the menu when it is not
too cold outside (warmer than –15 °C).
Decreasing the value of the parameter
increases the freezing of the HR cell.
The winter function of the unit is adjusted
from the menu in very cold weather
(colder than –15 °C). Increasing the
value of the parameter increases the
freezing of the HR cell.
The desired base fan speed (minimum
fan speed) is chosen with the + and –
buttons. Active when week-clock control
is not on. Week-clock control changes
this speed.
The desired maximum fan speed is
selected with the + and – buttons.
Maximum fan speed is on either with
adjustments or always. See Section
3.25. Mode of operation of maximum
speed setting.
The maximum fan speed setting can
be selected to be active either only
in connection with (carbon dioxide
and humidity) sensor adjustments or
permanently. The selection is done with
the + and – buttons.
The desired adjustment value for the
supply air fan is selected with the +
and – buttons. The rotation speed of
the supply air fan can be decreased by
decreasing the percentage.
The desired adjustment value for the
extract air fan is selected with the + and
– buttons.
The rotation speed of the extract air fan
can be decreased by decreasing the
percentage.
OPERATING INSTRUCTIONS FOR CONTROL PANEL
4. Week-clock control
4.1 Week programme programming
The week programme can be used to set the desired fan speed (base fan
speed) and supply air temperature for each hour of the day on seven days a
week. The week programme overrides manual adjustments.
Carbon dioxide and humidity adjustment can increase fan speed but never
decrease it below the base fan speed set in the week programme.
Example: Monday
It is the intention to decrease fan speed to speed 2 and supply air temperature
to 17 ºC between 07:00 (7 a.m.) and 16:00 (4 p.m.). After that, fan speed
is raised to speed 4 and supply air temperature to 20 ºC. For the evening,
fan speed is boosted to speed 6 between 19:00 and 21:00 (7 p.m. and 9
p.m.), after which fan speed is lowered back to 4.
STARTING POINT
d hr sp tmp
1 0 N N Exit
Cursor
d Day 1…7
1 = Monday, 2 = Tuesday etc.
h Hour 0…23
sp. Fan speed 1…8
Temp Supply air temperature
10…30°C
Exit Save the setting and exit
N No change to previous hour setting
d hr sp tmp
1 7 2 17 Exit
d hr sp tmp
1 16 4 20 Exit
d hr sp tmp
1 19 6 N Exit
d hr sp tmp
1 21 4 N Exit
Move the cursor with the arrow keys and
change values with the + and – buttons.
Note that to exit and save when the
programming is fi nished, move the cursor
below the word Exit and press + or –.
Changes in fan speed (Sp.) and supply air
temperature (Temp.) are only made for the
hours desired; in other cases, use N (no
change to previous).
Monday (d = 1), 07:00 (h = 7),
fan speed 2 (sp = 2), supply air
temperature 17 °C (tmp =17).
Move the cursor to the following hour.
Monday (d = 1), 16:00 (h = 16),
fan speed 4 (sp = 4), supply air
temperature 20 °C (tmp = 20).
Move the cursor to the following hour.
Monday (d = 1), 19:00 (h = 19),
fan speed 6 (sp = 6), supply air
temperature no change (tmp = N).
Move the cursor to the following hour.
Monday (d = 1), 21:00 (h = 21),
fan speed 4 (sp = 4), supply air
temperature no change (tmp = N).
Move the cursor to the following hour.
3.28 Fan speed level adjustment
Speed 1 level
15%
If for instance speed 3 is 30%, speed 2 cannot be increased to more than
29% and speed 4 cannot be decreased below 31%.
The fan stops when the setpoint is 14% or lower. The adjustment is made
with the + and – buttons. There are 8 displays, one for each fan step.
3.29 Moving to Operating menu
To Main menu
press + and –
4.2 Adjusting time
day hour min
1 15 30 Exit
Cursor
D Day 1…7
1 = Monday, 2 = Tuesday etc.
H Hour, 0…23
M Minutes, 0…60
Exit Save the setting and exit
The desired fan speed level is adjusted
from the menu. Adjustment range is
0–100%. However, fan speeds limit the
adjustment range as follows:
To move back to the Operating menu,
press the + and – buttons simultaneously.
Move the cursor with the arrow keys and
change values with the + and – buttons.
Exit and save when the programming is
fi nished.
Monday (D=1), hours 15 (H=15), minutes
(M=30)
Time is maintained even though there is
a power failure. (See Section 1.1, fi gure
items 5 and 6).
5. Factory settings
Base fan speed = 1
Maximum fan speed = 8
Carbon dioxide adjustment (CO2) = 900 ppm CO
Adjustment interval = 10 min
Winter parameter A = 9 bars
Winter parameter B = 3 bars
Mode of melting = heat recovery cell bypass
Maintenance reminder = 4 months
Cell bypass = 12 °C
Cascade adjustment = not in use
Speed steps:
1. = 31 %
2. = 42 %
3. = 47 %
4. = 54 %
5. = 59 %
6. = 66 %
7. = 72 %
8. = 100 %
Humidity level (Rh level) setting = automatic
Switch type = fi replace switch
Extraheater type = electric radiator
2
Similar changes have to be made separately for each day. Finally, exit the
programming mode by selecting Exit. If you wish, you can erase the week
programme as indicated in Section 3.6. You can then start programming from
the start. You can see the settings programmed by choosing a day and by
scrolling the hours with the + or – button.
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
Children shall not play with the appliance.
hazards involved.
Cleaning and user maintenance shall not be made by children without supervision.
What the units include can vary depending on the sales area.
Page 7
Vallox
MAINTENANCE INSTRUCTIONS
MAINTENANCE
Before starting maintenance operations
When you open the VALLOX 096 SE unit, the security switch (S) turns
voltage off. In spite of this, disconnect the plug of the unit. Disconnect
the plug of the VALLOX 096 SE unit before starting maintenance
operations.
Filters
When the maintenance reminder gives an alarm, the cleanliness of the
fi lters must be checked. Outdoor air is fi ltered in the unit with two kinds
of fi lters. A coarse fi lter (A) fi lters off insects, heavy pollen and other
dust. An F7 class fi ne fi lter (B) fi lters off fi ne dust invisible to the eye.
Extract air is fi ltered with a coarse fi lter (C).
By using original Vallox fi lters you ensure good operation of the
ventilation unit and the best fi ltering result. The replacement interval
of fi lters depends on dust content in ambient air. It is recommended to
replace fans in spring and autumn, but at least once a year.
Filters
S
A
B
C
D
096
SE
Heat recovery cell
When you replace the fi lters, you are also advised to check the
cleanliness of the heat recovery (HR) cell (D) at an interval of
approximately every two years. The sealing ledge (E) above the HR
cell must be pulled off in the direction shown by the arrow in the fi gure.
When the sealing ledge has been removed, the HR cell can be pulled
out of the unit. Note! The laminas of the HR cell are very thin and get
easily damaged.
If the HR cell is dirty, wash it by putting it in a solution of water with
washing-up liquid. Rinse the HR cell clean with a jet of water. When
water has drained from between the laminas, you can push the HR cell
back in place. Finally, push the sealing ledge in place.
Check the cleanliness of the fans when carrying out maintenance for fi lters and the heat recovery
cell. Clean the fans if needed. The fans are very sensitive to external mechanical damage, and
it is recommended to clean them in place.
The fan blades can be cleaned with compressed air or with a brush. Do not remove or move
the balancing pieces on the fan blade.
Cleaning supply air fan (T)
Remove the extract air fi lter (C), upper support for the HR cell (E) and the HR cell (D) from the
unit as instructed earlier. Pull the temperature sensor off from the upper part of the extract air duct
(G) (fi gure 1) and then remove the stopper screw from the lower edge of the duct. After that the
extract air duct comes out by turning and simultaneously pushing downwards (fi gures 2 and
3).Detach the temperature sensor from the resistor support (fi gure 4).Then detach the support of
the additional and post-heating resistors (H), fastened with two butterfl y nuts from downward
(fi gure 5). Then pull the resistors and the support from the unit and disconnect the quick coupling
of the resistor conductors. The fan can now be cleaned in place. If you wish to detach the fan,
lift it upwards and crank the plastic lock to the right using for instance a chisel (fi gure 6).The
fan then falls down and can be pulled out of the unit. Disconnect the quick coupling of the fan
conductors. When needed, detach the intermediate shaft of the bypass damper from the end of
the partition wall (fi gure 7).
1
2
3
Supply air fan
T
H
Gi
Extract air fan
P
F
4
7
5
6
Cleaning extract air fan (P)
Remove the extract air fi lter (C), upper support for the HR cell (E) and the HR cell (D) from
the unit as instructed earlier. Remove the supply air fi lters G4 and F7.Open the four screws
(F, fi gure 8) on the protective cover of the extract air fan and remove the cover downwards.
The extract air fan can now be cleaned in place (fi gure 9). If you wish to detach the fan, lift
it upwards and crank the plastic lock to the right using for instance a chisel (fi gure 6).The fan
falls down and can be pulled out of the unit (fi gure 10). Disconnect the quick coupling of the
fan conductors.
8910
Condensing water
Model L
143
121
600
Model R
143
121
Condensing water
During the heating season, humidity of extract air condenses into condensing water. Water
formation may be abundant in new buildings or if ventilation is low compared to the humidity
build-up caused by the residents. Condensing water needs to fl ow out from the ventilation
unit without hindrance. When carrying out maintenance, for instance in autumn before the
beginning of the heating season, make sure that the condensing water outlet in the bottom tank
is not clogged. You can check it by pouring a little water in the tank. Clean if needed. Do not
What the units include can vary depending on the sales area.
545
55
Page 9
Vallox
MAINTENANCE INSTRUCTIONS
Troubleshooting
SymptomCauseDo this
Outdoor air coming to
1
the dwelling is cold.
The maintenance
2
reminder symbol (
) is displayed and
the unit operates
otherwise normally.
“Exh air sensor
3
faulty” message is
displayed and the unit
is stopped.
“Sup. air sensor
4
faulty” message is
displayed and the unit
is stopped.
“Ind. air sensor
5
faulty” message is
displayed and the unit
is stopped.
“Out. air sensor
6
faulty” message is
displayed and the unit
is stopped.
“Cell sensor faulty”
7
message is displayed
and the unit is
stopped.
"Bus fault" message is
8
displayed and the unit
operates at speed 1
(check the fan speed).
“Freezing alert”
9
message is displayed
and the unit is
stopped.
The desired automatic
10
adjustment does not
stay on.
The fans are not
11
running and no
indicator light is lit at
the control panel.
The unit does not
12
obey the control
panel.
“Carbon dioxide
13
alarm” message is
displayed and the unit
is stopped.
Filter guard symbol
14
) is displayed and
(
the unit operates
otherwise normally.
• Air cools down in the attic ducts.
• The heat recovery cell is frozen, which is why extract air
cannot heat outdoor air.
• The post-heating radiator does not work.
• The extract air fi lter or cell is clogged.
• The initial adjustment of ventilation has not been done.
• The maintenance reminder lights up the maintenance
reminder symbol in the main display of the control panel
at an interval of circa 4 months (factory setting).
• You may change the interval (see the operating
instructions for control panel, Section 3.2).
• There is a fault in the freezing protection sensor.• Contact a maintenance company. Sensor mounting needs to be
• There is a fault in the supply air sensor.• Contact a maintenance company. Sensor mounting needs to be
• There is a fault in the extract air sensor.• Contact a maintenance company. Sensor mounting needs to be
• There is a fault in the outdoor air sensor.• Contact a maintenance company. Sensor mounting needs to be
• There is a fault in the sensor of the heat recovery cell.• Contact a maintenance company. Sensor mounting needs to be
• Wiring fault in the carbon dioxide sensor, in the control
panel or in the humidity sensor, or the cable is of the
wrong type.
• Antifreeze of the water-circulating radiator is active.
NOTE! If there is no non-freezing solution in the water of
the radiator, the radiator is at risk of freezing.
(Does not apply to the Vallox 096 SE unit)
• There is a fault in the humidity or carbon dioxide sensor.
One of the sensors is broken or missing.
• Door switch may be broken or the door is not quite
closed.
• The unit is out of power, for instance because a fuse has
blown.
• The glass tube fuse (located in the control card behind a
protecting plate) protecting the electronics inside the unit
may have blown.
• Carbon dioxide alarm. Carbon dioxide content has
exceeded 5000 PPM for two minutes. May be caused
by for instance a fi re.
• The pressure in the fi lter guard (pressure difference
switch) has risen above the adjustment value or speed is
7 or 8 (option).
096
• Check the insulation of the attic ducts.
• Check the cleanliness of the fi lters and heat recovery cell.
• Check the cleanliness of the fi lters and the unit. If needed, clean
or replace the fi lters. Also check the external grille.
• Reset the maintenance reminder symbol (see the operating
instructions for control panel, Section 3.1.).
checked and the sensor has to be replaced if necessary.
checked and the sensor has to be replaced if necessary.
checked and the sensor has to be replaced if necessary.
checked and the sensor has to be replaced if necessary.
checked and corrected if necessary.
• Contact a maintenance company. The connections have to be
checked and corrected if necessary.
• Immediately troubleshoot the situation. Consult a maintenance
company to fi nd out if there is any non-freezing solution in the
radiator. Check if the circulation pump is broken, the boiler out
of operation etc. The situation may pass by itself as soon as
supply air temperature exceeds 10 degrees, but do not wait till it
happens.
• Contact a maintenance company. Sensor mounting and
connections have to be checked. (Sensors are options.)
• Check the door switch and fuses. The unit has a T800 mA glass-
tube fuse.
• If needed, contact a maintenance company (for instance to check
the glass tube fuse).
• Disconnect the plug of the unit from the wall socket, wait for 30
seconds and put the plug back. If this does not help, contact a
maintenance company.
• If there is a fi re, take the necessary steps.
• You can make the unit operational by disconnecting the plug
from the wall socket, waiting for 30 seconds and putting the plug
back.
• Check the cleanliness of the fi lters and the unit. If needed, clean
or replace the fi lters. Also check the external grille.
NOTE!
Faulty connection of
the + wire DESTROYS
CONTROL PANEL
CONTROL PANEL 1
ONE OR MORE
1 INCLUDED AS STANDARD
2x0.5
2x0.5
2x0.5
NOTE!
Faulty connection of the +
wire DESTROYS THE SENSOR
CO
ONE OR MORE
OPTION
THE FIRST HUMIDITY SENSOR
IS CONNECTED TO REPLACE
RESISTOR R6k8
HUMIDITY SENSOR %RH1
OPTION
2x0.5
A
+
-
SENSOR 1
2
S
TECHNICAL DATA
METAL = M
WHITE 2 = B
ORANGE 2 = A
WHITE 1 = ORANGE 1 = +
B
M
+
2
1
HUMIDITY SENSOR %RH2
OPTION
2x0.5
+
S
2
1
2. TWISTED PAIR
1. TWISTED PAIR
FAULT SIGNAL
MAX. 1A, 24VDC
(POTENTIAL-FREE CONTACTS)
GND
+
S
S
%RH1
MS+S+
R
CONNECTION BOX IS SITUATED
ON TOP OF THE UNIT
A
1
2
FAULT SIGNAL
RS-485 BUS
B-+
FIREPLACE SWITCH FAN CONTROL
Mounting, removing and wiring of the control panel
The control panel is wired straight from the electrical connection box.
The control panel can also be connected in series with a CO
another control panel. (See External electrical connection).
Control panel addresses
If two or more control panels are connected to the system, the addresses
of the control panels need to be changed.
For example 3 control panels
• Connect the fi rst control panel to the unit and change its address to 3.
• Connect the second control panel to the unit and change its address
to 2.
• Connect the third control panel and make sure that its address is 1.
If control panels have the same address, they go to bus fault state. In this
case, remove one of the control panels and change the address of the
other panel. The above mentioned situation can arise in connection with
the later installation of an additional control panel.
sensor or
2
0-20mA
0-10V DC
%RH2
CONNECTION BOX INSIDE
THE UNIT
Width 90 mm
Height 110 mm
Depth 23 mm
PLUG CONNECTION 10 A
1.2 m ON TOP OF THE UNIT
If the mains connection cable becomes
damaged, it must be replaced by the
manufacturer, an authorised maintenance
company or other qualifi ed person in order
to avoid danger.
What the units include can vary depending on the sales area.
Page 13
Vallox
MOUNTING
Mounting
VALLOX 096 SE has to be mounted in a place where temperature does
not go below +10 °C. Without protective enclosure, the unit must be
located in a place with no acoustic disturbance: storerooms, technical
rooms etc.
Wall mounting
VALLOX 096 SE is mounted on the wall with a mounting plate as shown
in the adjacent fi gure. Make sure that the unit is horizontally level after
mounting.
Wall construction
Observe the wall construction during mounting. Avoid mounting the unit
on a hollow, echoing dividing wall and on a bedroom wall because of
sound conduction, or prevent sound conduction.
Condensing water connections
The delivery includes a water seal. By connecting a pipe to the water
seal the water condensing from extract air can be led to a fl oor drain
(not directly to the drain). The pipe must not rise after the water seal.
The unit has to be mounted horizontally level, so that condensing water
can get freely out of the unit.
096
The minimum distance between the top of the unit and the
fi nished ceiling surface is 30 mm.
433
Take into account that the unit rises
during mounting 10 mm higher t
han the fi nal height.
An optional ceiling mounting plate can be used with the unit. The ceiling mounting plate is fi xed to the ceiling with M8 thread bars. Fix the
bars so that they stand the weight of the unit.
The ceiling mounting plate has to be fi xed horizontally in order to en-
sure that the unit will be straight. The outdoor air and exhaust air duct
must be insulated against condensation also between the unit and the
ceiling mounting plate.
The ceiling mounting plate is mounted horizontally level, and it has to
be attached so that there is a space of circa 4 mm between the back
edge of the ceiling mounting plate and the wall. The ventilation unit is
then as close to the wall as possible. Minimum distance between the
bottom edge of the ceiling mounting plate and the ceiling of the room
is 50 mm.
The ceiling mounting plate is fi xed to the ceiling with M8 thread bars.
After the thread bars have been fastened to the ceiling, fi rst turn the nuts
into the thread bars and lift the ceiling mounting plate in place. Then
Ceiling mounting plate (option)
Minimum distance between bottom edge
of ceiling mounting plate and ceiling of
room 50 mm
Minimum distance to back wall 4 mm
MOUNTING
push a rubber damper and washer to each thread bar, all the way into
the cup of the plate, and turn the nut. Shorten the lower ends of the
thread bars so that they will be at no more than 25 mm from the lower
surface of the ceiling mounting plate.
Mounting of ventilation unit to ceiling mounting plate
Mount the locking washers (J) delivered with the ceiling mounting plate
in place with the 4 screws. Lift the unit and take the wires through the
opening in the ceiling mounting plate. Put the locking devices attached
to the top of the ventilation unit at the openings in the ceiling mounting
plate and lift upwards. Make sure that the unit is locked in place.
Check that the condensing water insulation between the unit and the
ceiling mounting plate is in place in the exhaust and outdoor air duct.
The unit can be detached from the ceiling mounting plate by pulling
the spring-loaded moulding to the direction shown by the arrow (more
detailed information provided with the ceiling mounting plate).
Minimum distance 10 mm
600
544
332
4
J
Attic fl oor penetration plate (option)
When an attic fl oor penetration plate is used, the tightness of the vapour barrier has to be ensured.