HEAT RECOVERY UNIT
ILOX 129
INSTALLATION, OPERATION AND MAINTENANCE
2
Heat Recovery Unit ILOX 129 - Installation, Operation and Maintenance
FläktGroup DC_10201GB_20190207_R2 We reserve the right to make changes without prior notice
CONTENTS
NOTE! INSTALLATION, ADJUSTMENT AND COMMISSIONING AS DESCRIBED
IN THESE INSTRUCTIONS MUST BE CARRIED OUT BY AN INSTALLATION ENGINEER OR BY SERVICE PERSONNEL.
WARNING! THE APPLIANCE MAY BE USED BY CHILDREN OVER THE AGE OF 8, PERSONS (INCLUDING CHILDREN) WITH PHYSICAL,
SENSORY OR MENTAL DISABILITIES OR LACK OF KNOWLEDGE OR EXPERIENCE, PROVIDED THEY HAVE RECEIVED INSTRUCTION
OR INFORMATION ON SAFE USE OF THE APPLIANCE AND UNDERSTAND THE POTENTIAL RISKS. CHILDREN MAY NOT PLAY WITH
THE APPLIANCE. CHILDREN MAY NOT CLEAN OR PERFORM MAINTENANCE ON THE APPLIANCE WITHOUT SUPERVISION.
OPERATION AND MAINTENANCE (FOR USER)
Description, control equipment, electrical data, energy class .......... 3
ISYteq Touch control panel
General, general buttons and symbols ..............................................4
Home screen, description ...................................................................... 5
Operation, home screen and sub menus ......................................... 6
Operation, sub menus ..............................................................................7
Maintenance
Maintenance and cleaning of heat exchanger and fans ............. 8
Filter alarm, filter replacement ............................................................. 9
Thermal overload protection, temperature alarm, other alarms 10
Unit with a water coil, frost protection .............................................11
INSTALLATION (FOR INSTALLER AND SERVICE PERSONNEL)
Dimensions, weight and connections ...................................................... 12
Wiring and connection diagram................................................................. 13
Duct connection, duct insulation .................................................................14
Installation options, definition of ducts .................................................... 15
Location, condensation drain, wall mounting ........................................ 16
Installing a water heater ................................................................................17
Installing and connecting the ISYteq Touch control panel ............... 18
ADJUSTMENT, COMMISSIONING (FOR INSTALLER AND SERVICE PERSONNEL)
Settings, date/time, language .................................................................... 19
Air flow calibration, logging in, settings ..................................................20
Adjusting the fan speed ................................................................................ 21
Parameter list....................................................................................................24
OTHER
CE Declaration of Conformity ......................................................................29
Disposal of products and packaging materials ....................................30
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Heat Recovery Unit ILOX 129 - Installation, Operation and Maintenance
FläktGroup DC_10201GB_20190207_R2 We reserve the right to make changes without prior notice
DESCRIPTION, ELECTRICAL DATA, CONTROL EQUIPMENT
Winter mode Summer mode
ELECTRICAL DATA
Voltage: 230 V, single phase, 50 Hz
Code Fan motors
Rated output, W
Electric
heater, W
Rated output,
W
Rated output,
A
ILOX 89 2 x 175 1200 1570 6.9
FANS
The fans are powered by energy-efficient EC motors.
HEATER
A heater (electric or water coil) is supplied as standard.
TEMPERATURE CONTROL
In cold weather the bypass damper closes and outdoor air is routed
through the heat exchanger in order to recover the heat from the ex-
tract air (winter mode). The heat that the counterflow heat exchanger
recovers is generally sufficient.
When outdoor temperatures are low and the desired supply air tem-
perature cannot be achieved using recovered heat alone, the heater
assists.
In warm weather the bypass damper opens and the outdoor air is
routed past the heat exchanger (summer mode).
CONTROL EQUIPMENT
The unit is equipped with an electronic Curo control unit The control
unit is integrated into the unit and controls the
operation of the fans, the bypass damper and the heater.
FAN CONTROL
Three operating modes can be selected via the Curo Touch control
panel:
• “AWAY” (low speed) is only used when the premises are left empty
for an extended period (during a holiday for example)
• “HOME” (normal speed) is used for normal ventilation flow
• “FORCED” (high speed) is used when there is a greater need for ven-
tilation (reverts to normal automatically after 120 minutes)
The speed of the fans can be adjusted independently of each other.
COOLING RECOVERY
In the summer, if the extract air is colder than the outdoor air, the by-
pass damper closes to recover cooling from the colder extract air. This
applies particularly if there is some form of cooling unit in the facility/
house.
DEFROSTING, TERMO ICE
During cold periods when frost forms in the heat exchanger, the Termo
Ice function defrosts the unit and the supply air fan is stopped. Defros-
ting does not start until it is really needed. In other words when much
of the heat exchanger has been covered in frost. This is to allow the
highest degree of heat recovery possible. The Termo Ice system can
detect the difference between frost and condensate.
THE UNIT’S MAIN COMPONENTS
The figure above shows a unit bb = 14 = outdoor air right and supply air left.
1. Counterflow heat exchanger
2. Extract air fan (behind the heat exchanger)
3. Supply air fan (behind the heat exchanger)
4. Heater, electric
5. Heater, water
6. Control box
7. Supply prefilter ISO Coarse (G3)
8. Supply filter ISO ePM1, 55% (F7)
9. Extract air filter ISO Coarse (G3)
10. Door switch
11. Bypass damper
12. Reset button, thermal overload protection
1
7
10
11
12
3
9
2
6
8
5
4
ETHERNET CONNECTION (ACCESSORY)
This function can be used to connect the unit to an existing network.
The unit has an integrated web server, which makes it possible to read
and change certain parameters via a web browser.
The connection can also be used for connection to a superior system
via Modbus TCP/IP.
ENERGY CLASS
Compliant with energy class A+ in cold climate conditions (Scandinavia).
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Heat Recovery Unit ILOX 129 - Installation, Operation and Maintenance
FläktGroup DC_10201GB_20190207_R2 We reserve the right to make changes without prior notice
GENERAL BUTTONS AND SYMBOLS
The following buttons and symbols are universal and available on
many menu pages.
Home button, to return to the home screen.
Back button, to cancel and return to the previous page.
Confirm button, to confirm and proceed.
Changing a value.
Option 1: Press the arrow keys to increase or decrease
the value.
Option 2: Press the displayed number to enter the cho-
sen value (see below).
Use the number keys to enter a value.
Confirm with or cancel with .
Read-only values (without a surrounding
window), cannot be changed.
Editable values (surrounded by a win-
dow), can be changed.
Some submenus have more than
one page. Click the upper
or lower part of the scroll list to
navigate between pages.
NOTE! The cursor cannot be
moved vertically.
14
GENERAL
The control panel has a touch screen display. Use your finger or the
back of a pen to navigate in the menus.
When the power is switched on, all the menus will be imported into
the system. This will take about 20-30 seconds. After this, the home
screen will be displayed.
CLEANING OF THE DISPLAY
Disconnect the unit from the power supply by disconnecting the power
cord. Carefully wipe the display with a soft, dry, non-abrasive cloth.
If any marks remain, moisten the cloth slightly with a detergent spe-
cially designed for LCD or mobile screens and wipe the screen gently
from top to bottom.
Never use other detergents, as they may contain ammonia or other ad-
ditives that could damage the display.
IMPORTANT:
• Never spray or pour liquids directly onto the display.
• Never clean the control panel when the system is switched on.
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Heat Recovery Unit ILOX 129 - Installation, Operation and Maintenance
FläktGroup DC_10201GB_20190207_R2 We reserve the right to make changes without prior notice
ISYTEQ TOUCH 3.5 CONTROL PANEL - HOME SCREEN
ALARMS
No alarm
Alarm B
Alarm A
Heat recovery active
Postheater active
Defrosting in progress
Manual mode
Heating stove mode
CO2 control
Forced via cooker hood
Away mode
Home mode
Forced mode
STATUS LINE
OPERATING STATUS
OPERATING MODES
CLOCK
CURRENT SETPOINT,
SUPPLY AIR TEMPERATURE
The user can select between the following operating modes:
“AWAY” used when there is reduced need for ventilation, e.g.
when occupants are on holiday
“HOME” used for normal ventilation flow
“FORCED” used when there is a greater need for ventilation
(automatically reverts to normal after 120 minutes)
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Heat Recovery Unit ILOX 129 - Installation, Operation and Maintenance
FläktGroup DC_10201GB_20190207_R2 We reserve the right to make changes without prior notice
ALARMS
See page 7.
SHORTCUT TO SETTING OF TEMPERATURE SETPOINT
See page 7 for more information on temperatures.
MENU
See page 7.
SHORTCUT TO SETTING OF
DATE AND TIME
SELECT OPERATING STATUS
See page 7.
AWAY MODE HOME MODE FORCED MODE
Press the relevant field to select operating mode.
The operating mode cannot be changed during defrosting,
or during forced operation with a cooker hood.
ISYTEQ TOUCH 3.5 CONTROL PANEL - OPERATION
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Heat Recovery Unit ILOX 129 - Installation, Operation and Maintenance
FläktGroup DC_10201GB_20190207_R2 We reserve the right to make changes without prior notice
SELECTING OPERATING STATUS
The symbol on the home screen shows the operating status. Press the
centre of the fan symbol to change the status.
Normal mode (manual)
Heating stove mode, makes it easier to light a heating stove
or open fireplace. Temporarily creates overpressure in the
house.
ALARMS
The symbol on the home screen shows the alarm status.
No alarm
Alarm B
Alarm A
Press the icon to enter the alarm screen.
MENU
TEMPERATURES
Here you set the desired supply air temperature (setpoint).
Note: This value is not to be confused with the desired in-
door temperature, which is managed by the domestic hea-
ting system. The recommended setpoint is 16–19 °C. The
factory setting is 18 °C. Temperatures, output signals etc.
are read-only values.
FAN STATUS
Supply and extract air fan speeds can be read from
30 –100 % or as 0 (off).
AIR QUALITY
Not applicable to the ILOX unit.
SYSTEM OVERVIEW
Version control panel -- -- -- -- -- -- -- -- -- -- -- --IP Octet 1
Bootloader control panel --------------------IP Octet 2
Version control card ------------------------ IP Octet 3
Bootloader control card -- -- -- -- -- -- -- -- -- -- --IP Octet 4
Unit type
TIME SCHEDULES
(Not applicable to domestic ventilation).
SETTINGS
See pages 20–24.
Example 1 No alarm Example 2. Active alarms
ALARM HISTORY
ISYTEQ TOUCH CONTROL 3.5 PANEL - OPERATION
CLEARING ALARMS
To clear an individual alarm, press Acknowledge after the relevant
alarm. To clear all the alarms, press Acknowledge All button (top right).
If the alarm cannot be cleared, it will reappear on the display and the
underlying cause for this must be resolved before the alarm can be
cleared.
A built-in timer is normally set to provide a filter replacement reminder
(alarm) every six months. If a shorter replacement interval is required
(before the alarm is due) the filter alarm can be reset under the Set-
tings menu. See page 22, fig. 3.
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Heat Recovery Unit ILOX 129 - Installation, Operation and Maintenance
FläktGroup DC_10201GB_20190207_R2 We reserve the right to make changes without prior notice
CLEANING OF THE HEAT EXCHANGER
Check that the heat exchanger fins are not coated with dust. Clean by
vacuuming or using compressed air. Or spray them with water.
Alternatively clean them using a degreasing agent (ordinary washing
up liquid for example) and rinse clean with hot water.
NOTE! Do not soak the heat exchanger! Do not use dishwasher deter-
gents or lye! Do not poke the air ducts with a sharp object. Allow to dry
before reassembly.
MAINTENANCE AND CLEANING OF HEAT EXCHANGER AND FANS
Before cleaning the heat exchanger, fans etc., the unit should always have the power
disconnected. Pull out the plug and then open the door using the handle.
CLEANING OF FANS
Note that the fans must not be cleaned with water or other fluids; they
may only be vacuum cleaned or brushed.
Pull the heat exchanger out of the unit. During reassembly, check that the seals are
positioned correctly.
Vacuum or spray the heat exchanger with water
3. Disconnect the electrical connection and remove the fan from the unit.
4. Disconnect the impeller from the fan housing by removing the four screws on the
side of the fan housing.
5. Clean the impeller housing and the fan blades with a brush.
6. Reinstall the fan.
GENERAL
The fans, filters and heat exchanger are very important for the opera-
tion and economy of the unit. For this reason, it is crucial for them to be
kept clean and in good condition.
We recommend a general check-up every 6 months. For safety rea-
sons, general caution should be observed during maintenance of the
unit. If necessary, use protective gloves.
2. Unscrew the screws on the cover panels above the fans.
CONDENSATION, WATER IN THE UNIT
When the unit is running moisture condenses from the extract air. This
is greater during autumn and winter. The amount of moisture in the
extract air depends on various factors, during food preparation and
showering for example. A new house gives off a lot of moisture for the
first few years.
In the bottom of the unit is a drain hole for condensate drainage. Check
that the drain hole is not blocked at regular intervals.
At the end of the summer the water in the water trap may have evapo-
rated. This can result in a gurgling noise. Remedy this by pouring water
into the drain hole to fill the water trap.
1. Pull the heat exchanger out of the unit.
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Heat Recovery Unit ILOX 129 - Installation, Operation and Maintenance
FläktGroup DC_10201GB_20190207_R2 We reserve the right to make changes without prior notice
FILTER ALARM AND FILTER REPLACEMENT
FILTER ALARM AND FILTER REPLACEMENT
If the filter needs replacing ISYteq Touch 3.5 generates an alarm.
The supply air and exhaust air filters should normally be replaced eve-
ry six months. In dirty areas, the filters may need to be replaced more
frequently.
A built-in timer is normally set to provide a filter replacement reminder
every six months.
To replace the filter, follow the steps below.
Displayed in the
event of a
filter alarm
Extract air filter ISO Coarse (G3)
Supply air, prefilter ISO Coarse (G3)Supply filter ISO ePM1, 55% (F7)
1. Disconnect the unit from the power supply by pulling out the plug.
2. Open the unit, see previous page.
3. The supply filters (coarse filter and fine filter) are suspended on a
spring-loaded bracket. Move the spring-loaded plate to one side to
remove them. To minimise soiling take both filters out at the same
time.
4. Remove the extract air filter sitting loose on the heat exchanger.
5. Install new filters
6. Close the unit and insert the plug
7. Press the alarm symbol to reset the filter alarm. Then acknowledge
the filter alarm, see the figures below.
If the filters are replaced before the alarm is generated, reset the filter
alarm in the Settings menu, see the figure below.
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Heat Recovery Unit ILOX 129 - Installation, Operation and Maintenance
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THERMAL OVERLOAD PROTECTION, TEMPERATURE ALARM, OTHER ALARMS
RESETTING THE THERMAL OVERLOAD PROTECTION
The fan motors are equipped with thermal overload protection that is
reset manually by temporarily disconnecting the power.
The electric heaters have dual thermal overload protection devices,
one that resets automatically and one manually. The automatic thermal
overload protection device trips before the manual one.
If the manually reset thermal overload protection device has tripped the
power must be disconnected.
Let the electric heater cool for a few minutes before unscrewing the
plastic cover over the reset button. Reset the thermal overload protec-
tion device by pressing the reset button.
If the manually reset thermal overload protection device trips again, call
out service personnel.
TEMPERATURE ALARM
The temperature alarm stops the unit if the supply air temperature
drops below +5 °C. The alarm is blocked during defrosting or during for-
ced operation via the cooker hood. A 10-minute delay ensures that the
supply air temperature has time to rise if operation has been stopped.
OTHER ALARMS
The unit has a number of other alarms. These are displayed in plain
text on the Curo Touch control panel.
EXTERNAL ALARM
An external alarm can be connected to the unit. If this alarm is trigge-
red, the unit will stop running
Thermal overload protection reset button
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Heat Recovery Unit ILOX 129 - Installation, Operation and Maintenance
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UNIT WITH A WATER COIL, FROST PROTECTION
Temperature range for the water coil temperature control.
UNIT WITH A WATER COIL
On units with a water coil the supply air temperature is adjusted using
the thermostat valve in the unit, see the figure below.
The table under the figure shows the temperature corresponding to the
set value. We recommend settings 3 or 4 in heating mode.
In summer we recommend *.
FROST PROTECTION
* = 8 °C (summer)
1 = 11 °C
2 = 14°C
3 = 17°C
4 = 20°C
5 = 23°C
6 = 26°C
The frost monitor is used to prevent frost damage to the water coil
when outdoor temperatures are low. The frost protection sensor on the
water coil return line generates an A alarm that stops the unit when the
water temperature drops below 10 °C. Investigate why frost protection
tripped and then reset the alarm.
Return line Ø15 mm
Inlet line Ø15 mm
Displayed in
the event of a
A alarm (red)
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Heat Recovery Unit ILOX 129 - Installation, Operation and Maintenance
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DIMENSIONS AND CONNECTIONS
DIMENSIONS, WEIGHT AND CONNECTIONS
K = condensation drain ½ inch internal thread on the underside.
The door is always hung on the left.
Weight: 70 kg
Connection T F U A
Diameter 200 200 200 200
Connection Supply air Extract air Outdoor air Exhaust air
bb = 14 = Outdoor air right, supply air left bb = 24 = Outdoor air left, supply air right
K K
AA
TT
UU
FF
293
134 165
598
165
293
134
930
573
166 166133 133 166 166133 133
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Power
supply
board
230 V
Door switch
L N PE
Summation
alarm
Bypass damper
Max 24 V
200 mA
Timer 1 Timer 2
Extract air fan
External alarm
(Potential free contact)
Supply air fan
USB
+24V
GND
MDI MDI
CTR
C
NO
After Heater
N
L
Defrost
sensor
Frost
protection
sensor
Temperature
extract air
Temperature
outdoor air
Temperature
supply air
N
L
1 N
2 L
3 N
4 L
5 N
70 69 68 67 66 65 64
52
53
13 14 15 16
51
50
49
48
47
46
6 L
9
10
11 N
12 L
0 V
+10 V
Ethernet card
ISYteq Mini RS485
B A GND
N
L
0 V
+10 V
54
55
Cooker hood
N
L
29 30 37 3835 36
+ +– –
WIRING AND CONNECTION DIAGRAM
WIRING AND CONNECTION DIAGRAM, PRINTED CIRCUIT BOARD
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Heat Recovery Unit ILOX 129 - Installation, Operation and Maintenance
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DUCT CONNECTION
Exhaust air from the unit may only be connected to a ventilation duct
intended for this purpose. Connection must not be made to a smoke or
gas flue. In case of extract air ventilation in premises where a smoke
or gas flue is used (for instance, an open fireplace or heating stove),
an adequate supply air flow must be ensured A kitchen flue must be
installed in accordance with applicable regulations.
DUCT CONNECTION, DUCT INSULATION
Note! During installation, the instructions regarding unit installation and duct insulation must be adhered to without deviation.
Otherwise, there is a risk of condensation and moisture resulting in major damage.
DUCT INSULATION
In order for the installation of the unit to be effective, it is crucial that
the installation of the ventilation ducts in the unit, as well as the instal-
lation of ducts through external walls containing insulation and vapour
barriers, roofs and joists, is executed in a professional manner. Other-
wise there is a risk of condensation, resulting in moisture damage.
If older units are replaced, it is also necessary to inspect ducts and
duct insulation for damage and ensure they are of adequate quality.
Supply air ducts (T) and extract air ducts (F), i.e. ducts containing warm
air, which are located in unheated spaces, must be insulated. The insu-
lation should be installed externally and have a windproof surface layer.
Outdoor air ducts (U) and exhaust air ducts (A), i.e. ducts filled with cold
air, which are located inside the building’s vapour barrier, must be in-
sulated and have a diffusion-proof (moisture-proof) surface layer. Given
the high degree of heat recovery achieved by the unit, the exhaust air
also gets very cold and must be thermally insulated. Moreover, ducts
which run alongside each other must have a common vapour barrier.
Ducts between the cooker hood, if fitted, and the unit and exhaust air
duct are to be regarded as kitchen flues. This means that particular
measures must be taken; see the table below.
For the designations of the various ducts, see "Duct definitions" on the
next page.
DUCTS IN WARM SPACES (INDOORS)
The temperature of the air
in the duct is above +10 °C The temperature of the air
in the duct is below +10 °C
No insulation
Supply air ducts (T)
Extract air ducts (F)
Outdoor air duct (U)
Exhaust air duct (A)
Supply air duct (T)
Extract air duct (F)
Fire protection
wired mat 30 mm with moisture-proof
surface layer
Takstol Fuktspärr
Fuktspärr
Fuktspärr
Skivan ska bindas
fast vid kanalen.
Min tjocklek 10 cm.
Fuktspärr
DUCTS IN COLD SPACES
Takstol Fuktspärr
Fuktspärr
Fuktspärr
Skivan ska bindas
fast vid kanalen.
Min tjocklek 10 cm.
Fuktspärr
Takstol Fuktspärr
Fuktspärr
Fuktspärr
Skivan ska bindas
fast vid kanalen.
Min tjocklek 10 cm.
Fuktspärr
Supply air duct (T) Outdoor air duct (U)
Extract air duct (F) Exhaust air duct (A)
DUCTS IN LOOSE WOOL
All figures in this table are recommended values which apply in central Sweden. Please check for local variations.
RECOMMENDED INSULATION AND VAPOUR BARRIERS FOR DIFFERENT TYPES OF DUCTING
Ducting type Approved material and
location
Duct in a warm space
Insulation
Vapour
barrier Duct in a cold space Insulation Vapour barrier
Exhaust air (flue)
In kitchen Sheet metal, accessible for
inspection Armaflex AF3, 19 mm Yes – –
Between joists and in attic Sheet metal Fire protection E15, Yes Fire protection E15, Only inside
mesh mat 30 mm mesh mat 50 mm building's vapour barrier
Exhaust air (no flue) Sheet metal Mineral wool 25 mm Yes – –
Between joists and in attic Sheet metal Mineral wool 30 mm Yes Mineral wool 30 mm Yes
From tumble dryer Sheet metal Mineral wool 30 mm No Mineral wool 100 mm No
Outdoor air
In kitchen Sheet metal, accessible for
inspection Armaflex AF3, 19 mm Yes – –
Between joists and in attic Sheet metal Mineral wool 60 mm Yes Inside building’s vapour barrier Only inside
Mineral wool 60 mm building's vapour barrier
Supply air Sheet metal No requirements Mineral wool at least 80 mm No
Extract air or equivalent.
The sheet must be bound
tightly to the duct.
Minimum thickness 10 cm.
Vapour barrier
Vapour barrier
Vapour barrier
Vapour barrier
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Heat Recovery Unit ILOX 129 - Installation, Operation and Maintenance
FläktGroup DC_10201GB_20190207_R2 We reserve the right to make changes without prior notice
Avluft
Uteluft
Tilluft
Frånluft Kondensspärr
INTRODUCTION
If the unit is not installed immediately after delivery, it should be stored
well-protected under a roof in its original packaging. We recommend
that the unit always be lifted by two people. Protective gloves should be
worn.
INSTALLATION OPTIONS
The unit should be positioned as shown in the ventilation drawing. If
no ventilation drawing is available, installation should be carried out
according to one of the options below. The unit is intended for installa-
tion indoors in a warm space. It is intended for wall mounting or ceiling
mounting in a ceiling bracket.
T = Supply air
F = Extract air
U = Outdoor air
A = Exhaust air
K = Extract air device in kitchen (not above cooker)
S = Eventuel cooker hood
T
S
KU
F
A
INSTALLATION EXAMPLE
To prevent accidents and injury:
The unit must be connected to ducting and the door
must be closed before the power is switched on.
!
The unit must be connected to an earthed power
outlet.
!
INSTALLATION OPTIONS AND DUCT DEFINITIONS
Exhaust air
Outdoor air
Extract air
Supply air
Condensation barrier
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Wall mounting using wall rails.
Condensation drain with water trap.
LOCATION
Install the heat recovery unit in a warm space. This should preferably
be warmer than +10°C. The Ilox 89 should be installed on a wall using
a wall bracket, or on the ceiling using a ceiling bracket (accessory).
CONDENSATION DRAIN
There is a connection (1/2" internal thread) at the bottom of the unit for
draining condensation.
Use a length of 12 mm pipe or rigid hose to route condensate to the
floor gully or to the wash basin/sink water trap.
Do not connect the condensation pipe to the outflow directly. Always
create a water trap on the pipe by bending it as shown in the adjacent
figure. The height of the water trap is to be 50 - 100 mm. Ensure that
the pipe slopes downwards for its entire length. Fill the water trap.
WALL MOUNTING
1. Screw the wall rails (1) securely into place on the wall. The wall
should preferably be brick, lightweight concrete or concrete. If the
substrate is plasterboard or similar, the wall mounting must be rein-
forced with mesh or plywood.
2. Use a spirit level to check that the rails are horizontally and vertically
true.
3. Remove the two rear mounting bolts, x 2, at the corners of the unit.
4. Lift the unit so that it is resting on the lower edge of the wall rail.
5. Then lift the unit up a little, align the mounting hooks with the holes
on the rear of the unit.
LOCATION, CONDENSATION DRAIN, WALL MOUNTING
50 - 100
VP 25
25 mm
700 - 800
Ø12
595
523
790939
1
60
6. Secure the lower corners in the rails using the bolts.
Important! Do not install the unit on a wall that borders a bedroom.
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Heat Recovery Unit ILOX 129 - Installation, Operation and Maintenance
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INSTALLING A WATER HEATER
Connecting a water heater
INSTALLING A WATER HEATER
Connect the water coil to the heating system in the home; in parallel
with the radiators for example. Generally, thanks to the unit’s high effi-
ciency, no more heat output is needed than connecting the water coil to
the same branch as the underfloor heating for example.
The inlet is connected to the pipe using a thermostat valve, see the
adjacent figure.
Create an inspection opening if the connections are in a space above
a suspended ceiling. Install a bleed valve at the highest point of the
return line.
When the circuit has been topped up and bled, ensure that the water is
circulating in the coil before commissioning.
The system may need to be bled again after a few days. Ensure that
the air flows are calibrated before the water is connected. There must
be a continuous flow of water in the coil in winter due to the risk of
frost.
Return line Ø15 mm
Inlet line Ø15 mm
Thermostat valve
Shut-off valve
Pipes are not included in
the delivery from FläkGroup
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Heat Recovery Unit ILOX 129 - Installation, Operation and Maintenance
FläktGroup DC_10201GB_20190207_R2 We reserve the right to make changes without prior notice
CONTROL PANEL ISYteq TOUCH 3.5 - INSTALLATION AND CONNECTION
ISYteq Touch 3.5
1. Open the control panel using a screwdriver.
2. Lift the display out of the enclosure.
3. Push the connection cable through a suitable hole and if needed
make an outlet for the cable on side of the cover.
4. Mount the enclosure directly on the wall or using the screws in a
junction box.
7. Check that the control cable is correctly connected to the con-
trol card before switching on the power supply.
USB
51
50
49
48
47
46
1 N
2 L
3 N
4 L
5 N
27
70 69 6867 66 65 64
28 3732 33 34 3835 3613 14 15 16
6 L
7 N
8 L
11 N
12 L
A
B
Ethernetkort
(tillbehör)
5. Connect the cable to the back of the display as shown above. NOTE!
Do not touch the electronics.
6. Push the display back into the enclosure.
Ethernet card
(accessory)
19
Heat Recovery Unit ILOX 129 - Installation, Operation and Maintenance
FläktGroup DC_10201GB_20190207_R2 We reserve the right to make changes without prior notice
ADJUSTMENT, COMMISSIONING (FOR INSTALLER AND SERVICE PERSONNEL)
SETTINGS
To enter the “Settings” menu:
1. Press the gear cog button.
2. Press the spanner button.
3. In this menu you can set the date, time and language. There is also
the option of resetting the filter alarm in advance. Installers and ser-
vice personnel can log in and access additional parameters.
DATE / TIME
2. Set the time. Press “Confirm”.
1. Set the date and continue by pressing “Confirm”.
1. Press the appropriate language flag. Press “Confirm”.
SELECT LANGUAGE
20
Heat Recovery Unit ILOX 129 - Installation, Operation and Maintenance
FläktGroup DC_10201GB_20190207_R2 We reserve the right to make changes without prior notice
AIR FLOW ADJUSTMENT, LOGGING IN, SETTINGS
INTRODUCTION
Adjustment of air flow and temperature may only be carried out by an
installation engineer or service personnel.
AIRFLOW ADJUSTMENT
The speed of the fans is adjusted independently of each other.
Normally only HOME mode need be adjusted to meet the design air
flows.
LOGIN
Installation engineers and service personnel must log in to access
"Settings".
The default (preset) password is 0000. This password can be changed.
WRONGLY ADJUSTED AIR FLOWS MAY
RESULT IN INCREASED ENERGY CONSUMPTION
AND DAMAGE TO THE BUILDING.
SETTINGS FOR INSTALLER AND SERVICE PERSONNEL
For other settings, see parameter list on page 25.
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