FläktGroup e Ilox 59Plus, Generation 1 Installation and Maintenance Manual

Category
Split-system air conditioners
Type
Installation and Maintenance Manual
OPERATION, INSTALLATION AND MAINTENANCE MANUAL
AIR HANDLING UNIT
ILOX 59PLUS
Air Handling Unit ILOX 59Plus - Operation, installation and maintenance manual
2
FläktGroup FG_DC_10443GB_20211116_R2 Specifications are subject to alteration without notice
Thank you for purchasing the ILOXair air handling unit. We have been
developing our products over the years with the aim of making them more
user-friendly. This user guide has also been written with this in mind. However,
if you feel that an aspect of the guide or the product needs to be improved, we
would be glad to hear from you. Our contact information can be found on web-
site
www.flaktgroup.com
.
More useful information and help, such as the following, is available on our
website
www.flaktgroup.com
:
Instructions and guides
Service call. Please have access to the unit’s product label (location on the
control box)
Ordering original filters
SAFETY
We recommend that you follow these instructions strictly. This way
you will ensure reliable operation of your equipment for many years to
come.
WARNINGS AND NOTES
This manual contains clearly marked warnings which are intended for
your personal safety.
CONTENT
Safety ................................................................................................................................... 2
OPERATION & MAINTENANCE (FOR THE USER)
Main components ........................................................................................................... 3
Electrical data, Control equipment .......................................................................... 4
Basic operation ...............................................................................................................5
Plus Touch panel.............................................................................................................5
Temperature control ......................................................................................................6
Additional control equipment .....................................................................................6
Maintenance ..................................................................................................................... 7
Condensation, water inside the unit .......................................................................8
Overheating protection, Temperature alarms, other alarms ........................9
Maintenance schedule, Fan speed settings .....................................................10
INSTALLATION (FOR INSTALLER AND SERVICE PERSONNEL)
Dimensions and weight ..............................................................................................11
Duct connection, Insulation of the ducts ............................................................12
Installation options and duct definitions ............................................................. 12
Mounting example ........................................................................................................13
Site of installation .........................................................................................................13
Installing the condensate removal pipe .............................................................. 13
Mounting option, wall .................................................................................................. 14
Mounting option, ceiling ............................................................................................. 14
Removing the unit from the ceiling mounting frame ..................................... 16
Electrical installation ................................................................................................... 17
External connection box ............................................................................................17
Internal connections .................................................................................................... 17
Connection diagrams .................................................................................................. 18
Physical connections for external control .........................................................20
CO
2
Control .....................................................................................................................20
Humidity Control ...........................................................................................................20
Emergency stop ........................................................................................................... 20
Cable entry ..................................................................................................................... 20
Set-up menus - only for installer ...........................................................................21
Declaration of conformity ......................................................................................... 25
Warning! Indicates the presence of a hazard which could
result in personal injury.
!
Note! Alerts the reader of important facts and conditions.
Warning! The device can be used by children from 8 years upwards and people (including children) with reduced
physical, sensory or mental capa bilities, or lack of experience and knowledge if they have received guidance or
information on how to use the device safely and understand the risks that can occur. Children should not play
with the appliance. Cleaning and maintenance is not carried out by children without supervision.
!
Warning! Installation, adjustment and commissioning that is described in this manual must be carried out by
competent, authorised personnel.
!
Warning! Use protective gloves during installation, service and maintanance.
!
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FläktGroup FG_DC_10443GB_20211116_R2 Specifications are subject to alteration without notice
HEAT EXCHANGER
The unit has a counterflow heat exchanger made of aluminium and
it has a temperature efficiency of up to 85%. An automatic defrosting
function, Termo ice is standard. If the unit is equipped with a cooker
hood duct connection, the extract air from the cooker hood will by-
pass the heat exchanger and go directly to the exhaust fan.
Air flow, l/s 30 50 70
Temperature efficiency,% 86 84 82
The table above shows the unit temperature efficiency in % at a given
air flow according to EN 308 conditions.
POST HEATER, ELECTRICAL
The 850 W electrical post heater is used to heat the supply air tem-
perature when the counter flow heat exchanger is not able to recover
enough energy. It is also used when the defrosting function Termo ice
is active.
FILTERS
The unit is fitted with a ISO Coarse pre-filter and a ISO ePM1 55% filter
on the supply side and a ISO Coarse filter on the extract side.
PACKAGING
The unit is delivered in a cardboard box with styrofoam padding. Re-
cycle the cardboard to the carton waste and the padding material to
plastic or energy waste. The printed material in the package can be
recycled to the paper waste.
All of the printed material can be downloaded from our website
www.flaktgroup.com
.
OPERATION & MAINTENANCE (FOR THE
USER)
MAIN COMPONENTS, RIGHT HAND VERSION
CASING
The outer and inner casing are made of white coated galvanised steel
(RAL9016) with an intermediate layer of 20 mm polyester fiber insula-
tion. Corrosion class C3 and leakage class A1 external, A2 internal (EN
13141-7). The unit is IP34 rated against splashing water.
FANS
The fans are driven by independently controllable energy-efficient EC
motors with stepless speed control.
MAIN COMPONENTS
1. Counterflow heat exchanger
2. Extract air fan (behind the heat exchanger)
3. Supply air fan (behind the heat exchanger)
4. Post heater (behind the heat exchanger)
5. Control equipment
6. Pre-filter supply air, (G3) ISO Coarse
7. Supply air filter, (F7) ISO ePM1 55%
8. Extract air filter, (G3) ISO Coarse
9. Power switch
10. By-pass damper
11. Reset button, thermal overload for electrical post heater
12. Pull-out collar
13. USB port
14. RJ12 connector
Condensate drainage, see under ”Dimensions and weight” on page
11.
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FläktGroup FG_DC_10443GB_20211116_R2 Specifications are subject to alteration without notice
ELECTRICAL DATA
Voltage: 230V, 1 phase 50 Hz.
Postheater Electrical heater
Fan Power (w)
2 x 117
Post heater (w)
850
Total Power (W)
1084
Current (A)
4.7
ELECTRICAL DATA, CONTROL EQUIPMENT
TERMO ICE – AUTOMATIC DEFROSTING
The Termo Ice function ensures an optimal annual efficiency and a
better indoor climate. The unit uses temperature sensors to detect if
there is frost forming in the heat exchanger and starts defrosting on
demand.
When Termo ice is activated the by-pass damper opens and the
outdoor air is directed directly to the post heater by-passing the heat
exchanger. The supply air fan stays in operation during defrosting. The
warm extract air defrosts the heat exchanger.
COOLING RECOVERY
During summertime, if the extract air is cooler than the outdoor air, the
by-pass damper will close. The heat exchanger then recovers cooling
from the extract air. This primarily applies if there is some form of
cooling device in the house. When the extract air is warmer than the
outdoor air the by-pass damper will again be opened.
HUMIDITY
Optional humidity sensor for extract air. The unit can be controlled to
maintain the humidity below certain level via the Plus Touch panel.
CO2
Optional carbon dioxide sensor for extract air. The unit can be con-
trolled to maintain the carbon dioxide level below a certain level via the
Plus Touch panel.
MODBUS RTU
The unit has a Modbus RTU interface as standard. The unit can be con-
trolled and monitored via the Modbus field bus interface.
ALARMS
The unit has built-in alarms for filter change and sensor errors.
SEC CLASS
SEC class A+ is fulfilled in a cold climate zone (Nor-
dic countries). Units configured for demand control
CO
2
will achieve SEC class A in an average climate zone
(Central Europe). ECO design directive 1254/2014.
CONTROL EQUIPMENT
The unit is equipped with an electronic control system, Plus controller.
The Plus controller handles fan speeds, the by-pass damper and elec-
trical post heater. The air handling unit is supplied with a 1.25 meter
cable and a plug in connector for the main supply. Control connections
are made in the connection box outside the unit. The connection box
has connectors for Modbus connections, cooker hoods, Mosaik switch
and Plus Touch control panel. Any additional sensors are connected
directly to the PCB in the control box.
FAN CONTROL
Depending on the controller used, up to four operating modes can be
selected (see accessories):
AWAY is used when nobody is at home for a longer period e.g. vaca-
tion.
NORMAL is used for normal ventilation air flow.
BOOST is used when there is a need for a higher ventilation air flow.
MAXIMUM generates full fan speed.
The fan speeds can be adjusted independently of each other on every
operating mode.
TEMPERATURE CONTROL
The Plus controller controls the by-pass damper and the electrical post
heater to maintain the supply air temperature at set point. The electri-
cal post heater is activated when the energy recovery from the heat
exchanger is insufficient.
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FläktGroup FG_DC_10443GB_20211116_R2 Specifications are subject to alteration without notice
Fan speed:
1/4 for Away
2/4 for Home
3/4 for Boost
4/4 for Maximum
Active alarms Active function
Menu
Automatic operation
Away
Boost
ON/OFF
The Plus Touch panel basic view.
BASIC OPERATION
The basic functions of the air handling unit can be controlled from the
following:
Plus Touch Panel Cooker hood Mosaik
MOSAIK CONTROL
Mosaik is standard light switch sized controller with three operating
modes. The right switch controls whether the unit is in away mode or
normal operation and the left switch controls home or boost operating
mode when right switch is in normal mode.
COOKER HOOD CONTROL
The air handling unit’s operating modes can be controlled with a cook-
er hood. Compatible Iloxair cooker hoods can also indicate and reset
the unit’s alarms. For more detailed information please read the cooker
hood manual. Using Iloxair cooker hoods is strongly recommended for
ensuring the compability.
PLUS TOUCH PANEL
Home
Boost
Home
Away
OFF
Boost
Away
Automatic
Home
PLUS TOUCH PANEL
With the Plus Touch panel it is possible to change for example fan
speeds, temperature set point, date and time.
TEMPERATURE SET POINT
It is possible to change the temperature set point and to read the tem-
perature of the different temperature sensors via the Plus Touch panel.
The temperature sensors are located inside the unit. This means that
they do not precisely reflect the actual outdoor or indoor air tempera-
tures.
WEEKLY SCHEDULES
The unit can be set to operate according to user-defined weekly
schedules. A setup wizard guides you through the basic set-up. It is
possible to edit the schedule for each day afterwards.
ALARMS
The Plus Touch panel shows alarms for example filter change and
sensor errors. For more information regarding alarms see separate
parts in this document.
FAN OPERATING MODES
All four operating modes can be selected via the Plus Touch panel:
Away is used when nobody is at home for a longer period e.g.
vacation.
Home is used for normal ventilation air flow.
Boost, there are several variants:
Boost is used when there is a need for a higher ventilation air flow.
Boost 60 minutes sets the unit into BOOST mode for 60 minutes
Fireplace timer 15 minutes is used when the user wants to light a fire
Maximum generates full fan speed.
Note! If a separate Away/Normal control switch is used, the switch
must be in the normal position to allow changes via the touch panel.
Home
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FläktGroup FG_DC_10443GB_20211116_R2 Specifications are subject to alteration without notice
ADDITIONAL CONTROL EQUIPMENT
HOME/AWAY SWITCH
The Home/Away switch allows you to reduce
the ventilation rate. To enable control from an
Plus touch panel or other additional control
equipment connected to the unit, the switch
must be in the Home position.
FIREPLACE OR BOOST SWITCH
The switch may be used either as a fireplace
switch or a regular boost switch. When used as
a fireplace switch it changes the pressure con-
ditions in order to make it easier to light a fire.
When in use, the fireplace switch overrides any
other switches.
CO2 TRANSMITTER
The CO
2
transmitter measures the carbon dioxide level in the room and
boosts ventilation if the set point level is exceeded. When the CO
2
level
drops below the set point the fans return to their previous speed.
HUMIDITY TRANSMITTER
The humidity transmitter boosts ventilation when the relative humidity
in the room exceeds the set point. During the cold season, the set
point should be set to approximately 50%. During the warm season,
the set point should be higher, approximately 70%. If the set point is
correct then the humidity transmitter boosts the ventilation when using
the shower or sauna. The normal ventilation rate is resumed after ap-
proximately 1–2 hours. During certain conditions the humidity level may
be so high that unit will stay in boost mode. In order to prevent this
raise the humidity set point.
3-SPEED OR 4-SPEED SWITCH
Easy to use switch for choosing between three
or four different operating modes.
TEMPERATURE CONTROL, ELECTRICAL HEATER
Temperature set point.
The supply air temperature set point is adjustable via the knob on the
front edge of the electrical box inside the unit. The temperature set
point can be adjusted between 12 and 26°C, recommended set points
being between 17°C and 20°C. It is also possible to set the temper-
ature set point via the Plus touch panel (accessory). The electrical
post heater will not be activated unless the outdoor air temperature is
below the post heater activation temperature default being 8°C. Please
note that the temperature set point is not be mistaken to be the gener-
al indoor temperature. The general indoor temperature is to be handled
by the heating system.
TEMPERATURE CONTROL
During cold periods the by-pass damper closes and the cold outdoor
air is led through the counter flow heat exchanger (winter mode). The
supply air will then be heated from the warm extract air. If the outdoor
air is cold and the heat energy recovered from the extract air is not
enough to achieve the supply air temperature set point the post heater
will activate in order to maintain the supply air temperature. During
warm periods when the heat recovery from the extract air is not need-
ed the by-pass damper opens and the outdoor air is led past the heat
exchanger directly into the supply air fan (summer mode).
Winter mode Summer mode
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FläktGroup FG_DC_10443GB_20211116_R2 Specifications are subject to alteration without notice
MAINTENANCE
GENERAL
Filters, fans and the counter flow heat exchanger are very important
for the function and economy of the unit. It is therefore important that
these are kept clean and in good condition. We recommend a general
check of these parts during filter replacement, every 6 months. For
safety reasons, general caution should be observed during mainte-
nance of the unit. It is recommended to use protective gloves.
FILTER ALARM AND REPLACEMENT OF FILTERS
The filters for the extract and supply air should normally be replaced
twice a year. In areas where there is a lot of airborne particles such as
in cities it may be necessary to change the filters more often. The Plus
controller is set to remind the user to change the filter every 6 months.
It is possible to change the interval when using Plus touch panel.
Follow the instructions below to change the filters:
1. Open the hatch door.
2. Disconnect the power by using the power switch on the electrical
box.
3. Remove the used supply air filters (ISO Coarse pre-filter and ISO
ePM1 55% filter) from the console.
4. Remove the used extract air ISO Coarse filter.
5. Insert the new supply air filters (ISO Coarse pre-filter and ISO ePM1
55% filter) and extract air filter (ISO Coarse filter).
6. Turn on the power switch and close the hatch door.
7. (If equipped with accessory Plus Touch panel, reset the filter alarm.)
Warning! When replacing dirty filters, use of a face mask is
recommended (lowest class, FFP2).
!
Note! Only use filters recommended by FläktGroup at exchange. If in-
correctly selected filters are installed, there is a risk that performance
and air quality will not be achieved. FläktGroup disclaims warranty
liability if incorrect filters are installed upon replacement.
Before cleaning the fans, heat exchanger etc, the unit should always have the power
disconnected.
1. The heat exchanger is removed from the unit
2. Remove the screws for the cover plates of the fans.
3. Remove the heat exchanger’s side support.
CLEANING THE FANS
The fans should be checked every two years. The fans should be
cleaned if there is dirt on the impellers. Note that the fans are not be
cleaned with water or other fluids. The fans are only to be cleaned with
a vacuum cleaner or a brush. It is strongly recommended to let an ed-
ucated professional maintenance the fans.
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FläktGroup FG_DC_10443GB_20211116_R2 Specifications are subject to alteration without notice
CONDENSATION, WATER INSIDE THE UNIT
When the unit is running, moisture from the extract air may conden-
sate in the heat exchanger. This applies mainly during autumn and
winter. The amount of moisture condensated from the extract air
depends on moisture production in the house such as cooking and
showering. Typically in newly built houses the construction materials
emit their excess moisture during the first years. In the bottom of the
unit there is a drainage for removal of the condensate. It is important
to regularly check the function of drainage to prevent clogging. After
the summer the water in the water trap may have evaporated. This can
result in a gurgling noise. This can be fixed by pouring water into the
condensate drain hole located below the heat recovery unit to fill up
the water trap. Water can also be added without removing the unit by
pouring water onto the bottom of the machine, to its extract air side.
The extract air side of the machine is on the same side as the supply
air filter and the by-pass damper.
The chromed ball-fitted water trap allows for a silent and reliable the disposal of
condensate.
The heat exchanger is cleaned with either a vacuum cleaner or by showering it with
water.
Note! Acetone or a similar solvent must not be used. The heat
exchanger is not to be soaked in water etc. Do not use sharp
objects. Make sure that the heat exchanger is completely dry before
reinstalling.
CLEANING THE HEAT EXCHANGER
Check that the surface of the heat exchange is not covered in dust.
Clean by either using a vacuum cleaner, compressed air or by show-
ering the heat exchanger with water. If this is not sufficient, apply a
grease-dissolving fluid such as dish soap and wash the heat exchang-
e r.
5. Detach the impeller from the fan by removing the four screws.
6. Clean the fan and impeller with a brush.
7. Reinstall the cleaned fan in reverse order.
4. Disconnect the electrical contacts and remove the fans from the
unit.
The heat exchanger is pulled out of the unit. When reinstalling make sure that all the
gaskets are in the right possition and fully intact.
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FläktGroup FG_DC_10443GB_20211116_R2 Specifications are subject to alteration without notice
OVERHEATING PROTECTION, TEMPERATURE
ALARMS, OTHER ALARMS
POST HEATER ELECTRICAL
The unit has an overheating protection device that switches off the
electrical post heater if the temperature is too high. If the overheating
protection has triggered, the user needs to manually reset this. See
figure below:
Overheating protection reset button
When the overheating protection has been triggered remove the plastic cover and
press the reset button on the front edge of the electrical box inside the unit.
Note! If the overheating protection device has been triggered it is
important to find the overall cause of the problem.
TEMPERATURE ALARM
The unit automatically identifies temperature sensor errors. In the
event of an error, arrange a service visit.
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FläktGroup FG_DC_10443GB_20211116_R2 Specifications are subject to alteration without notice
MAINTENANCE SCHEDULE, FAN SPEED SETTINGS
MAINTENANCE SCHEDULE
Date of purchase of the unit: ............./.........../20.........
Fill in the record starting from the season of the year following the
purchase.
Period Replace the filters,
clean the unit
Vacuum the
exhaust air filter Check unit operation Clean the
heat exchanger
Check/clean the
fans
Year 1, spring x x
Year 1, autumn x x
Year 1, winter x
Year 2, spring x x x
Year 2, autumn x x
Year 2, winter x
Year 3, spring x x (x) (x)
Year 3, autumn x x
Year 3, winter x
Year 4, spring x x x
Year 4, autumn x x
Year 4, winter x
Year 5, spring x x (x) x
Year 5, autumn x x
Year 5, winter x
Year 6, spring x x x
Year 6, autumn x x
Year 6, winter x
Replacing the filters and cleaning the unit: Replace the filters according
to the instructions, vacuum the unit inside and wipe with a damp cloth
if necessary. Clean the water trap at the same time.
Note! Depending on the situation it may be necessary to change the
filters more often than indicated in this manual. In that case, the other
maintenance actions should also be performed at more frequent
intervals.
Checking the operation of the unit: Listen to the fan sounds (do they
both work, is the sound balanced, are there noises that may indicate
bearing faults?). Inspect the condition of the unit visually.
Cleaning the heat exchanger: Clean the heat exchanger according to
the instructions. Perform the inspection every spring and clean if dirty
or every 1–2 years.
Checking/cleaning the fans: Perform the inspection every two years
and clean if dirty or every 4-5 years. The cleaning is strongly recom-
mended to be performed by a professional to ensure that the fans’
balance pads do not become dislodged.
Note! The ventilation ducts should be cleaned by a professional
every 5–7 years or according to the local regulations.
FAN SPEED SETTINGS
To find out about the fan speed settings, check the set-up record or
contact the person who performed the set-up. We recommend that
you write down the settings here for future reference.
Fan speed setting Supply fan Extract fan
Speed 1 V V
Speed 2 V V
Speed 3 V V
Speed 4 V V
Supply difference adjustment V V
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FläktGroup FG_DC_10443GB_20211116_R2 Specifications are subject to alteration without notice
INSTALLATION (FOR INSTALLER AND SERVICE PERSONNEL)
DIMENSIONS AND WEIGHT
DUCT CONNECTIONS
1 = outdoor air (Ø125)
2 = supply air (Ø125)
3 = extract air (Ø125)
4 = exhaust air (Ø125)
5 = Cooker hood connection (Ø125), optional
K = condensate outlet (½” female thread) at the bottom
Weight: 55 kg
MODEL L (LEFT)
Outdoor air left, supply air right
MODEL R (RIGHT)
Outdoor air right, supply air left
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FläktGroup FG_DC_10443GB_20211116_R2 Specifications are subject to alteration without notice
DUCT CONNECTION, INSULATION OF THE DUCTS
Note! During installation, the instructions relating to the unit and
duct insulation must be adhered to without deviation. Otherwise
there is a risk of condensation and moisture resulting in a major
damage.
DUCT CONNECTION
Exhaust air from the unit should only be connected to a ventilation duct
intended for the purpose. Connection should not be made to a chimney
or a smoke or gas duct. If the unit is being used in premises with for
example an open fireplace or heating stove with a chimney or smoke
or gas duct, an adequate supply air flow must be provided. A kitchen
duct must be provided in accordance with applicable regulations. A
separate extract air valve in the kitchen is necessary when using a
cooker hood in combination with a unit that has a fifth connection.
INSULATION OF DUCTS
In order to the unit working as intended the duct system should be
installed in a professional manner in accordance with local regula-
tions and following the ventilation plans made by a professional. This
includes installation of the ducts through external walls containing
insulation and vapour barriers, external roofs and joists. If this is not
done in professional manner there is a risk for condensation, resulting
in possible damage to the unit, duct system or the structure itself due
to moisture. In the case of replacing older units, it is also necessary
to ensure the quality of the ducts and duct insulation. Supply air ducts
and extract air ducts are filled with warm air. If those ducts are placed
in unheated spaces they must be insulated. The insulation should be
applied externally and have a wind-proof surface layer. Outdoor air
ducts and exhaust air ducts are filled with cold air. If those ducts are
placed inside the building’s vapour barrier they must be insulated and
have a diffusion-proof (moisture-proof) surface layer. Given the high
degree of heat recovery achieved by unit the exhaust air also gets very
cold and must be thermally insulated.It is also important that the wall/
ceiling which the unit will be mounted on is well insulated.
SILOX
EV
O
EXT
EXH
DUCT DEFINITIONS
O = Outdoor air
S = Supply air
EXH = Exhaust air
EXT = Extract air
EV = Extract air valve
INSTALLATION OPTIONS AND DUCT DEFINITIONS
If the unit is not installed immediately after delivery it should be stored
in a protected place under cover and in its original packaging. It is
recommended using some machinery while moving and lifting the unit.
Use protective gloves during the installation.
INSTALLATION OPTIONS
The unit shall be placed according to the ventilation plans made by
a professional. If there is no specific ventilation plans then the unit
should be installed according to one of the following options. The unit
is intended for indoors installation in a warm space and can be wall
mounted or ceiling mounted.
Warning! In order to prevent personal injury: The unit
must be connected to the ducts before the power plug is
connected.
!
Warning! The unit must always be connected to a protective
earth socket.
!
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FläktGroup FG_DC_10443GB_20211116_R2 Specifications are subject to alteration without notice
MOUNTING EXAMPLE
Caution! To avoid the risk of moisture damage to the roof
and roof insulation, the outdoor air duct should not be
installed horizontally inside the roof insulation. Outdoor air
duct should be insulated with 100 mm mineral wool mat
with a moisture-proof surface layer in cold spaces.
The exhaust air duct from the unit should
preferably run straight to the roof, without any
horizontal runs inside the roof insulation.
The outdoor and exhaust
air duct must be insulated
with 100 mm mineral wool
mat with a moisture-proof
surface layer in cold spaces.
If cooker hood is connected
to the unit, EI30 insulation
should be used.
The condensate pipe must run into a floor drain, not directly into
the sewer. The water seal height of the water trap must be at
least 100 mm. There must be no more than one water trap and
no horizontal runs in the condensate pipe.
NB! If the unit is equipped with
a cooling coil, the supply air
duct must be insulated, e.g.
with Armaflex, or with insulation
covered with an airtight vapour
barrier.
The outdoor and exhaust air ducts must be
insulated with 100 mm mineral wool mat with a
moisture-proof surface layer in warm spaces.
The extract and supply
air ducts do not need any
insulation in warm spaces.
The extract and supply air
ducts must be insulated with
100 mm mineral wool mat
and preferably inside the
loose wool in cold spaces.
Installation example.
SITE OF INSTALLATION
The air handling unit should be installed in a heated space. Ambient
temperature should be above +10 °C. The ILOX 59Plus can be either
wall mounted with the accessory mounting bracket or ceiling mounted
with the accessory ceiling mounting frame.
INSTALLING THE CONDENSATE REMOVAL PIPE
At the bottom of the unit, there is an outlet (1/2“ internal thread) for
condensate removal. Fit a pipe or a rigid hose with an inner diameter
of at least 12 mm between the condensate outlet and a floor drain or
the waste connector of a wash basin. The condensate removal pipe
should not run directly into the sewer. A water trap has to be installed
in the condensate removal pipe. Make sure that the condensate re-
moval pipe is always leaning towards the floor drain or wash basin.
The condensate removal pipe should always be installed in warm con-
ditions. If the condensate removal pipe can not be installed in warm
conditions, a heating cable should be installed in order to prevent
freezing. Make sure to fill up the water trap.
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MOUNTING OPTION, WALL
The wall mounting bracket (accessory) should be attached securely
into a wall, preferably onto a brick, light weight concrete or concrete
wall. If the mounting surface is a drywall or similar material, the wall
must be strengthened with additional wall frame or a plywood board.
1. Measure and mark the correct position of the wall mounting bracket
and secure it on the wall with minimum of four 6 mm screws. The
bracket is installed using the notches on the bracket as guidelines
with the mounting ears pointing upwards. Check the alignment with
a spirit level.
2. Install the two rubber mounting supports on the back wall of the
unit by screwing them into the rivet nuts.
3. Lift the unit and fit the ears of the mounting bracket into the corre-
sponding holes in the upper part of the rear wall of the unit. Double
check that the unit sits snugly and is secured tightly on the bracket.
4. Adjust the rubber mounting supports so that the unit tilts slightly
(about 0,5°) backwards towards the wall allowing the condensated
water escape easier through the drainage.
5. The ducts must be supported both horizontally and vertically from
near the unit to prevent any kind of movement.
Note! Installing the unit on a bedroom boundary wall with the wall
mounting bracket should be avoided due to the transmission of
sound; using the ceiling mounting frame is recommended.
Reinforcing the wall with additional wall frame.
Wall mounting bracket.
Air handling unit secured with the wall mounting bracket and rubber mounting sup-
ports.
MOUNTING OPTION, CEILING
1. Secure the ceiling bracket (accessory) in the ceiling structure using
four 8 mm threaded rods.
2. The bracket should be installed with the mounting hooks pointing
downwards and the ducts as the figure shows. The figure shows
outlets for a right-handed unit (Model R).
3. Flange nuts should be fitted above the frame, and a conical rubber,
washer and locking nut should be fitted underneath the frame.
4. Pre-tighten the locking nut manually approximately two turns (the
rubber should shorten about 2 mm).
5. Cut off the threaded rods, leaving the ends of the rods above the
lower edge of the frame.
6. Put the power cord and the external connection box through the
large opening in the mounting frame between the front duct con-
nections.
7. Lift the unit to the ceiling mounting frame so that the mounting
hooks fit to the corresponding slots on top of the unit. Use some
force upward from the bottom of the unit until the unit locks to the
mounting frame with clicking sounds. Double check that the unit is
secured tightly and that the indication under the mounting frame is
in locked position as in the picture.
Note! The bottom of the frame should be installed flush with the
finished ceiling surface or possible crown molding, so that the unit’s
hatch door can still open.
Note! The same ceiling bracket can be used for both the left- and
right-hand version with and without the cooker hood connection.
Air Handling Unit ILOX 59Plus - Operation, installation and maintenance manual
15
FläktGroup FG_DC_10443GB_20211116_R2 Specifications are subject to alteration without notice
Dimensions of the ceiling-mounting frame (model R ducting). The same ceiling-
mounting frame can also be used for a model L unit.
Example of an installation.
8 mm threaded rod
8 mm flange nut
Rubber damper
Washer
8 mm nut
Threaded rod attachment.
The figure below shows the duct outlets for Model (R).
1. Outdoor air
2. Supply air
3. Extract air
4. Exhaust air
5. Optional cooker hood duct connection
Warning! When using a ceiling mounting frame, it is
especially important to make sure that the unit is properly
secured to the ceiling mounting frame. When the unit
engages the frame, you should hear a clear “click” on both
sides of the ceiling mounting frame.
!
Ceiling mounting frame‘s indication of locking to the unit.
Air Handling Unit ILOX 59Plus - Operation, installation and maintenance manual
16
FläktGroup FG_DC_10443GB_20211116_R2 Specifications are subject to alteration without notice
REMOVING THE UNIT FROM THE CEILING MOUNTING FRAME
1. Unplug the unit and disconnect all the connections from the external
connection box. Remove the hatch door.
4. Pull the levers outwards from the unit pushing the locking railing
back and releasing the unit from the mounting frame.
2. Support the air handling unit from the bottom so that it does not fall
when it is released.
3. Push two cylindrical levers e.g. screwdrivers into the holes on both
front corners under the mounting frame.
5. Lower the unit few centimetres under the mounting frame and take
the levers off. Lower the unit completely taking the power cord and
the external connection box from the ceiling as the unit is being
lowered.
Air Handling Unit ILOX 59Plus - Operation, installation and maintenance manual
17
FläktGroup FG_DC_10443GB_20211116_R2 Specifications are subject to alteration without notice
Connecting the accessory control equipment to the external connection box.
ELECTRICAL INSTALLATION
The air handling unit is equipped with a plug connector, which can be
plugged directly into a wall socket that has an earth connector. The
wall socket should be installed inside the building’s moisture barrier
to a place where it can be unplugged with ease. Electrical installation
and connections for the unit must be made by a qualified electrician.
The unit is equipped with a service switch for switching off the power.
When installing accessories or other electrical connections, power
should be switched off by disconnecting the plug from the socket. The
unit is equipped with an external connection box for connecting some
of the basic accessories of the unit.
EXTERNAL CONNECTION BOX
An external connection box is used to make the most common control
connections to the unit. The external connection box is mounted above
the unit or in the ceiling, next to the service hatch. It is strongly rec-
ommended to install the external connection box inside the building’s
moisture barrier.
INTERNAL CONNECTIONS
The PCB in the unit’s control box is used to make the physical connec-
tions required for external control and to connect any of the following:
internal carbon dioxide transmitter, carbon dioxide switch, internal
humidity transmitter, humidity switch, emergency stop switch, Home/
Away switch and fireplace boost switch.
Note! Extra length must be allowed for the cables, so that the inside
of the electrical box can be pulled out sufficiently for installation.
Modbus out
Plus Touch panel
Mosaik switch
Modbus in
Cable with plug 59Plus
Modbus out
Hood control from Basic, Seili, Design,
Basic-E, Slide-E, Rosala, Satava
Air Handling Unit ILOX 59Plus - Operation, installation and maintenance manual
18
FläktGroup FG_DC_10443GB_20211116_R2 Specifications are subject to alteration without notice
CONNECTION DIAGRAMS
CONNECTION
9
10
11
15
16
17
18
GND
0-10V e. fan
Act.
Act.
0-10V s. fan
Act. GND
GND
23
24
25
+ -
- +
26
27
28
GND
GND
1 2 3 4 5 6 7 8
19
20
21
22
12
13
14
5
6
7
8
1
2
3
4
33
32
31
30
37
36
35
34
40
39
38
43
42
41
46
45
44
47
48
49
24V
T2 T3 T4 T5 T6 T7
Led no
24VDC
0-10V
GND
24VDC
GND
GND
L
N
L
N
L
N
PE
PE
T1
55 N
54
53 Pump 230V, 100W
52
51
50 Triac resistor control
Transformer 24V
Programming connector
USB
loop
Forced mode
1
850W max
2
rd
X5,N
X5,1
yl
bl
wt
rd
X5,N
X5,1
yl
bl
wt
M
T
Supply fan
Exhaust fan
X3,N
bl
X3,1
br
X3,
yl/g
M
P
X3,N
bl
X3,1
br
X3,
yl/g
1
2
1
2
2
1
2
1
2
1
PE
1
2
PE
1
2
PE
PE
2
1
Power switch
L N PE
1
C
T
2
Overheat protector
If electric
post-heating
Device frame
Electric boc frame
bk
bl
yl/g
Plug connection
230V
Fuse 10A
12 L N PE
2
1
2a
1a
Dashed line connections
only for models with
electrical post-heating
Pin 1
Pin 3 M
B
0105.
0105.
0106.
0106.
0210.
0203.
0211.
0212.
0203.
0213.
0207.
0201.
0221.
0219.
0220.
Box cover
BOSCH damp. motor PCB
M1
M2
Outdoor air damper
Fresh/waste
MMJ3*1.5S
230V/100W
Pump N
Air Handling Unit ILOX 59Plus - Operation, installation and maintenance manual
19
FläktGroup FG_DC_10443GB_20211116_R2 Specifications are subject to alteration without notice
CONTROL FUNCTIONS
Air Handling Unit ILOX 59Plus - Operation, installation and maintenance manual
20
FläktGroup FG_DC_10443GB_20211116_R2 Specifications are subject to alteration without notice
An emergency stop circuit for a number of air handling units with the control voltage
taken from the PCB
AHU emergency
stop switch
1or 1wh
NOMAK
2×2×0.5
+0.5
NOMAK
2×2×0.5
+0.5
AHU emergency stop circuit opto-isolated
(requires an external 24 VDC supply)
The control voltage can be taken from
terminals 34 and 37.
AHU 1
37
GND
34
24 VDC
36
36
33
32
31
30
37
GND
34
24 VDC
36
36
33
32
31
30
AHU 2
AHU
emergency stop
1or
1or
1or
1va
1wh
1wh
AHU
emergency stop
PHYSICAL CONNECTIONS FOR EXTERNAL CONTROL
The unit can be controlled via physical controls such as the HOME/
AWAY switch. These types of controls override the Plus Touch panel
controls.
More detailed connection instructions are available in the electrical
connections diagram.
CO2 CONTROL
The unit can be controlled to maintain carbon dioxide below a certain
level by adjusting the operation mode. It is possible to use a internal
CO
2
transmitter or a CO
2
switch. See the connection diagram for elec-
trical connections.
HUMIDITY CONTROL
The unit can be controlled to maintain the humidity below a certain
level by adjusting the operation mode. It is possible to use a internal
humidity transmitter or a humidity switch. See the connection diagram
for electrical connections.
EMERGENCY STOP
An emergency switch can be used to stop the unit. This connection
is opto-isolated and requires an external control voltage of 24 VDC. If
necessary, the control voltage can be taken from terminals 37 (GND)
and 34 (24 VDC) on the control board.
CABLE ENTRY
There is a cable gland (A) on top of the unit to allow for internal
connections. Inside the unit, the cable is routed to the electrical box
through the glands at the back of the box.
Top view over cable entry.
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FläktGroup e Ilox 59Plus, Generation 1 Installation and Maintenance Manual

Category
Split-system air conditioners
Type
Installation and Maintenance Manual

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