INSTALLATION INSTRUCTIONS
CTS602 LIGHT
BY NILAN
Comfort 200 Top (English)
Version 3.01 - 16.01.2019
TABLE OF CONTENTS
afety
S
Power supply................................................................................................................................................................................................................................................................... 4
Disposal............................................................................................................................................................................................................................................................................................. 4
Ventilation unit............................................................................................................................................................................................................................................................. 4
General information
Introduction.................................................................................................................................................................................................................................................................................. 5
General information prior to installation.........................................................................................................................................................................................5
Final inspection......................................................................................................................................................................................................................................................................... 5
Ventilation..........................................................................................................................................................................................................................................................................5
Unit type........................................................................................................................................................................................................................................................................................... 6
Product description..................................................................................................................................................................................................................................................6
Dimensional drawing left model.................................................................................................................................................................................................................7
Dimensional drawing right model............................................................................................................................................................................................................. 8
Functional block diagram...................................................................................................................................................................................................................................9
Accessories................................................................................................................................................................................................................................................................................10
Electrical pre-heating element for frost protection........................................................................................................................................................10
Water after-heating element incl. regulation......................................................................................................................................................................... 10
Electrical after-heating element........................................................................................................................................................................................................... 10
EM-box................................................................................................................................................................................................................................................................................ 10
DTBU-damper............................................................................................................................................................................................................................................................. 10
Pollen filter.....................................................................................................................................................................................................................................................................11
Water trap....................................................................................................................................................................................................................................................................... 11
Vibration absorbers............................................................................................................................................................................................................................................. 11
Flexible sound damper...................................................................................................................................................................................................................................... 11
CO2 -sensor...................................................................................................................................................................................................................................................................11
Set up
Installation..................................................................................................................................................................................................................................................................................12
Positioning of the unit........................................................................................................................................................................................................................................12
Top unit.............................................................................................................................................................................................................................................................................. 12
Mounting a top unit...............................................................................................................................................................................................................................................13
Electrical installation
Electrical connections.................................................................................................................................................................................................................................................... 14
Safety.................................................................................................................................................................................................................................................................................. 14
Connections overview....................................................................................................................................................................................................................................... 14
User-panel panel..................................................................................................................................................................................................................................................................15
HMI User panel........................................................................................................................................................................................................................................................... 15
Wall bracket.................................................................................................................................................................................................................................................................. 16
User panel connection....................................................................................................................................................................................................................................... 17
Electrical connection unit.......................................................................................................................................................................................................................................... 18
Power supply................................................................................................................................................................................................................................................................18
Unit.......................................................................................................................................................................................................................................................................................... 18
Electrical connection accessories.................................................................................................................................................................................................................... 19
Connection to user selection and Modbus.................................................................................................................................................................................. 19
External electrical pre-heating element....................................................................................................................................................................................... 20
Connecting Expansion PCB........................................................................................................................................................................................................................... 21
Electrical after-heating element........................................................................................................................................................................................................... 22
Water after-heating element.................................................................................................................................................................................................................... 23
Plumbing installation
Condensate drain................................................................................................................................................................................................................................................................ 25
Important information...................................................................................................................................................................................................................................... 25
Connection bottom............................................................................................................................................................................................................................................... 26
2
Comfort 200 Top (English)
Plumbing connections accessories..................................................................................................................................................................................................................27
ater trap with ball (option).......................................................................................................................................................................................................................27
W
Water heating element for after-heating (accessory) - duct mounted...................................................................................................... 28
BY NILAN
Ventilation installation
Duct system.............................................................................................................................................................................................................................................................................. 30
Legislation...................................................................................................................................................................................................................................................................... 30
Ducts..................................................................................................................................................................................................................................................................................... 30
Unit.......................................................................................................................................................................................................................................................................................... 30
Extract air........................................................................................................................................................................................................................................................................31
Supply air......................................................................................................................................................................................................................................................................... 31
Roof stacks.................................................................................................................................................................................................................................................................... 31
Installation example.............................................................................................................................................................................................................................................32
Balancing...................................................................................................................................................................................................................................................................................... 33
Important information...................................................................................................................................................................................................................................... 33
3
Safety
Power supply
CAUTION
Always disconnect the power supply to the unit if an error occurs that cannot be rectified via
the control panel.
CAUTION
If an error occurs on electrically conductive parts of the unit, always contact an authorised
electrician to rectify the error.
CAUTION
Always disconnect the power supply to the unit before opening the unit doors, for instance for
installation, inspection, cleaning and filter change.
Disposal
Ventilation unit
Nilan’s units consist mainly of recyclable materials. They must, therefore, not be
mixed with household waste, but must be delivered to your local recycling center
for disposal.
4
Comfort 200 Top (English) BY NILAN
General information
Introduction
General information prior to installation
The following documents are supplied with the unit:
• Installation instructions
• Software instructions
• User manual
• Electrical diagram
Instructions can be downloaded from Nilan’s website: http://www.nilan.dk/en-gb/frontpage/download
If you have questions regarding installation of the unit after having read the instructions, contact your
nearest supplier of Nilan products, who can be found on www.nilan.dk/en-gb/frontpage/download/
dealers.
The purpose of these instructions is to advice the installer on correct installation and maintenance of
the unit.
ATTENTION
The unit must be started up immediately after installation and connection to the duct system.
When a ventilation unit is not in operation, humidity from the rooms may penetrate into the
ducts and create condensation. Condensate water may leak out of the valves and damage
furniture and floors. Condensation may also form inside the unit, which can damage its
electronics and fans.
The unit is delivered fully tested and ready for operation.
Final inspection
Ventilation
How to set the unit
This list is intended for the installer to get an overview of what settings to use in consultation with the
user or the builder.
Function Settings
Setting of frequency of filter change Days:
What level constitutes basic ventilation Level:
Do you want low flow ventilation at low outdoor temperatures yes/no Level:
At °C:
Do you want low flow ventilation at low air humidity yes/no Level:
Level low air humidity %
Do you want high flow ventilation at high air humidity yes/no Level:
Set maximum time for high air humidity Min:
What is the desired room temperature °C:
Should ventilation cease at low room temperatures yes/no °C:
Is a cooker hood connected to the ventilation system yes/no Level:
Should the pre-heating element be activated (Polar version) yes/no
5
Unit type
P
roduct description
Comfort 200 Top is a ventilation unit with heat recovery. The unit is intended for air volumes up to 308
m3/h3/h at 100 Pa external duct pressure.
The unit extracts humid and vitiated air from the dwelling via the bathroom, the lavatory, the kitchen
and the utility room. It blows fresh outdoor air into living areas such as the living room, bedrooms and
the home-office. Cold outdoor air is heated in the heat exchanger by warm extract air.
As a standard, Comfort 200 Top is supplied with plate filters in outdoor air and extract air. If you want
to filter out pollen from the outdoor air, a pollen filter can be purchased as an accessory and be
retrofitted.
1. Duct connections
2
. Electrical connections
3. Automation
4. Bypass damper
5. Extract air filter (left version)
6. Outdoor air filter / pollen filter (left version)
7. Supply air fan
8. Extract air fan
9. Counterflow heat exchanger (heat exchanger)
10. Condensate drain
6
Dimensional drawing left model
301
All dimensions are in mm.
600
Comfort 200 Top (English) BY NILAN
650
105
106
Connections:
1. Outdoor air
2. Supply air
3. Extract air
4. Discharge air
5. Condensate drain
5
600
Ø 125
195
2 4
3 1
424
105
7
Dimensional drawing right model
301
All dimensions are in mm.
600
650
105
106
Connections:
1. Outdoor air
2. Supply air
3. Extract air
4. Discharge air
5. Condensate drain
5
600
Ø 125
195
4 2
1 3
424
105
8
Functional block diagram
1
T4
T3
T8
T2
2
5
4
6
3
T7
T9
Comfort 200 Top (English)
BY NILAN
Connections Automation
1. Outdoor air T2/T7: Supply air sensor
2. Supply air T9: After-heating element
3. Extract air T3: Extract air sensor
4. Discharge air T4: Discharge sensor and de-icing sensor
5. Condensate drain T8: Outdoor air sensor
6. Electrical and water after-heating element
onnections
c
9
Accessories
E
lectrical pre-heating element for frost protection
In longer periods of sub-zero temperatures, the high-efficiency counterflow heat
e
xchanger will ice up. To avoid icing, it is recommended that an electrical
preheating element is mounted.
The pre-heating element uses very little energy, but it ensures efficient heat
recovery without de-icing. You therefore achieve an overall reduction of energy
consumption.
Water after-heating element incl. regulation
With a water after-heating element you can increase the supply air temperature
t
o the desired level. The water after-heating element is for duct mounting and
should be connected to the primary heat supply.
It is supplied with a two-way regulation valve, a temperature sensor and a frost
thermostat.
Electrical after-heating element
With an electrical after-heating element you can increase the supply air
t
emperature to the desired level. Electrical after-heating elements are supplied
for mounting in the supply air duct. Included are the necessary sensors.
EM-box
With an EM box it is possible to divide the extract air between the kitchen and the
b
athroom.
If a cooker hood is connected to the unit and is switched on, extract air from the
bathroom will be reduced slightly to allow sufficient air for the cooker hood to
extract kitchen fumes.
The EM-box has a fitted metal filter that clears the air in the cooker hood of
grease particles effectively, and thereby protects the unit.
DTBU-damper
If there is insufficient space in the installation to fit an EM-box, Nilan can provide
a
DTBU-damper that can be fitted between kitchen and bathroom. It has the
same function as the EM-box, but you will have to run longer wires.
10
Pollen filter
Water trap
Comfort 200 Top (English)
As a standard, the unit is supplied with a plate filter.
I
f anyone in the household suffers from a pollen allergy, you can install a pollen
filter in the outdoor air intake to minimize the proportion of pollen in the indoor
air.
A pollen filter also removes approx. 50 % of harmful particles in outdoor air, so a
pollen filter is recommended if you live in a large city or close to a motorway.
To ensure that condensate water can drain freely, a water trap must be installed.
ou should check regularly that there is water in the trap. The water trap may
Y
dry out during late spring, summer and autumn, when no condensation is formed.
If the water trap dries out, air will be sucked into the unit and condensate water
will not be able to drain. This will cause water damage.
Nilan’s water trap contains a ball that ensures that no air is sucked into the unit
and that condensate water can drain freely.
BY NILAN
Vibration absorbers
Four vibration absorbers are placed under the unit to ensure effective softening
of the vibrations of the unit against its foundation.
Flexible sound damper
To make it easy to service the unit in the future, we recommend that you fit a
f
lexible connection between the unit and the duct system.
Nilan's flexible sound damper absorbs sounds effectively from both the duct
system and from roof stacks.
CO
-sensor
2
With a CO
higher level when there is high CO2 - level in the extract air. CO2 level can be
programmed.
-sensor installed, the fan speed can be pre-programmed to run at a
2
The CO2 -sensor must be ordered factory-fitted.
11
Set up
Installation
Positioning of the unit
ATTENTION
When positioning the unit, you should always consider future services and maintenance.
It must be easy to change filters, and it must, for instance, be possible to remove the heat
exchanger, and to replace fans or other components.
ATTENTION
An open space of minimum 60 cm in front of the unit is recommended.
ATTENTION
The unit must be level to enable proper drainage from the condensate tray.
The unit makes little noise and produces only weak vibrations, but you should still take into account
potential vibrations that can spread from the unit to individual building components. In order to
separate the unit from its foundation, it is therefore recommended that you install vibration absorbers
under the unit. There should be approx. 10 mm distance to other building components and to
permanent fixtures.
Top unit
ATTENTION
If you fit flashings above the unit, there must be enough space to remove these easily.
Min. 50 cm
Service area in front of the unit
Min. 60 cm
Min. 20 cm
12
Comfort 200 Top (English) BY NILAN
Mounting a top unit
The unit is equipped with mounting brackets with holes for wall mounting at the top back of the unit.
Holes for wall mounting
13
Electrical installation
Electrical connections
Safety
ATTENTION
All work must be carried out by qualified persons and in compliance with existing legislation and
regulations.
ATTENTION
It is important that the power is off, if you do work to the electrical components of the unit.
It is important to check that wires are not damaged or squeezed during connection and use.
Connections overview
All electrical connections are found on the top of the unit.
1. Connecting 230V (remember electrical grounding)
2. User panel connection
3. Connecting to PC via a USB AB cable
4. Connection through grommet to external connections
14
Comfort 200 Top (English) BY NILAN
User-panel panel
HMI User panel
The user panel is supplied with 1½ m cable. Connect the panel to the CTS602 control system in the unit
using a CAT.5e cable (max. length 50 m).
ATTENTION
If you want a longer cable, use an ordinary LAN-cable, not a crossover cable, max. 50 m.
If you want to extend the cable, please be aware of the following:
Installation in the RJ12 plug
1. Empty
2. Empty
3. Green (A2)
4. Green/white (B2)
5. Brown (12V)
6. Brown/white (GND)
Use RJ12 plug and RJ12 crimping tool.
Installation in the 8 pole plug
1. Brown/white (GND)
2. Green/white (B2)
3. Green (A2)
4. Empty (User selection)
5. Empty (User selection)
6. Empty (A1)
7. Empty (B1)
8. Brown (12V)
15
Wall bracket
ount the HMI panel on the wall using the integrated wall bracket.
M
The panel should be visible so it is possible to change settings and to monitor warnings or alarms
regarding operation.
The wall bracket is located at the back of
t
he panel. You can detach it by loosening
the bracket at the bottom of the panel.
You can then remove it.
Mount the bracket on the wall using 2
s
crews.
Click the RJ12 plug into place at the
bottom of the HMI panel. The wire can
run down along the wall, into the wall or
through the groove at the back of the
panel.
16
User panel connection
Comfort 200 Top (English)
BY NILAN
17
Electrical connection unit
Power supply
CAUTION
The power supply, including a safety switch, must be installed by an authorised electrician.
A power cable for connection to a power socket is included. It is important that the unit is
earthed.
The unit is supplied with an EU plug for a 230V power supply. This means that, in principle, you
have no protection of electrical grounding. You can secure electrical grounding by connecting
the plug to a socket with a ground pin.
You can also connect an adapter for a plug with a ground pin. You can fit this plug adapter on
the unit, so that the unit is secured electrical grounding to the earthing system.
Unit
Power supply
Safety switch
18
Comfort 200 Top (English)
BY NILAN
Electrical connection accessories
C
onnection to user selection and Modbus
User selection: Connection to user selection can be used, for instance, for controlling a cooker hood.
This happens via a potential free contact in the cooker hood that sends a signal to the unit, which, in
turn, increases ventilation when the cooker hood is on. You connect it using pin 4 and 5 in the 8 pole
plug of the control panel.
User selection can also be used for other functions such as to create imbalance in supply air and extract
air ventilation.
Modbus: You can communicate with the unit via Modbus, which can be connected in pin 1 (GND), pin 6
(A1) and pin 7 (B1) in the 8 pole plug of the control panel.
Please, consult user manual for software settings etc.
Connect the plug to the unit in point 2: Connecting the user panel.
CTS/Computer
Unit
Panel
Converter
Modbus
Unit
Panel
19
External electrical pre-heating element
1x230V ~ 50 Hz max. 16A
Min. 25 cm
If your unit is not the Polar version with an integrated pre-heating element, you can purchase and
retrofit an external electrical pre-heating element.
The electric preheating element is mounted in the outdoor air duct before the unit with the necessary
temperature sensor.
T
7 8
It is important that the sensor is placed at least 32 cm from the preheating element to achieve correct
regulation.
The pre-heating element has a three-step safety system that prevents
overheating.
1. An operating thermostat regulates the heating and ensures that the supply air
temperature does not fall below -1 °C
2. Should the temperature exceed 50 °C, a max. thermostat switches off the preheating element. (If installed vertically with downward airflow, the pre-heating
element switches off at 70 °C)
3. A safety thermostat switches off the pre-heating element if the temperature
exceeds 100 °C. Then, you must reset it manually.
ATTENTION
The heating element must be insulated with a fire retardant insulation material. The cover of
the connection box, however, must not be insulated.
Dimensional drawing:
Positioning options:
20
Ø125
Connecting Expansion PCB
Comfort 200 Top (English) BY NILAN
If you connect an Expansion PCB to the CTS602 Light circuit board, you will be able to connect a CO
sensor and an after-heating element.
Expansion PCB
0-10V
CTS602 circuit board
GND
2
T7
Connect the Expansion PCB to the CN9 socket on the CTS602 circuit board.
ATTENTION
Expansion PCB and the electrical connections must be installed by qualified persons and in
compliance with existing legislation and regulations.
The Expansion PCB is an accessory to the CTS602 circuit board. Nilan does not supply external
components.
21
Electrical after-heating element
Ø125/160/200
An after-heating element is necessary, if you want to control the supply air temperature.
The electrical after-heating element can be purchased for installation in the supply air duct. The
required sensor and connectors for the unit are included.
Snip the RJ45 plug at the heat-shrink sleeve and install the wire on the circuit board.
ATTENTION
Install the T7 temperature sensor after the heating element. The T2 temperature sensorMUST
be removed on the circuit board. The T7 temperature sensor should be installed where the T2
temperature sensor was previously installed.
T7
T7
1x230V ~ 50 Hz max. 16A
Min. 50 cm Min. 2xDia
T7
T2
0-10V
GND
Expansion PCB
0-10V
GND
CTS602 Light
Wiring diagrams are supplied with the products.
Run the wires along the duct and through a grommet on the unit down to the PCB. Connect the wires in
accordance with the wiring diagram.
ATTENTION
The heating element must be insulated with a fire retardant insulation material. The cover of
the connection box, however, must not be insulated.
Dimensional drawing:
50
22
Positioning options:
370
50
50
370
Comfort 200 Top (English) BY NILAN
Water after-heating element
An after-heating element is necessary, if you want to control the supply air temperature.
The water after-heating element can be purchased for installation in the supply air duct. The required
sensors and connectors for the unit are included.
Snip the RJ45 plug at the heat-shrink sleeve and install the wire on the circuit board.
ATTENTION
Install the T7 temperature sensor after the heating element. The T2 temperature sensor MUST
be removed on the circuit board. The T7 temperature sensor should be installed where the T2
temperature sensor was previously installed.
Connecting the sensors
T7
T7
T9
B3
Min. 50 cm
T7
B3
T9
Min. 2xDia
T2
CTS602 Light
Expansion PCB
T7: Temperature sensor - T9: Temperature sensor heating element - B3: Frost protection
Run the wires along the duct and through a grommet down to the PCB. Connect them in accordance
with the wiring diagram.
23
Electrical connection of regulation valve
N
L1
PE
0-10V
GND
CTS602 Light
83
310
440
Ø125/160/200
238
22
32
31
300
3/4" RG
3/4" RG
Expansion PCB
Run the wires along the duct and through a grommet on the unit down to the PCB. Connect the wires in
ccordance with the wiring diagram.
a
Dimensional drawing:
24
Comfort 200 Top (English) BY NILAN
Plumbing installation
Condensate drain
Important information
The unit is supplied with an Ø20 mm condensate drain (PVC, GF-fittings).
ATTENTION
You MUST install a water trap in connection with the condensate drain to ensure that
condensate water can drain away.
ATTENTION
If you set up the unit outside the climate screen, it is important to use a heating cable to prevent
the condensate drain from icing up. Frost protection of the unit is the installer's responsibility.
During operation, negative pressure of up to 500 Pa may occur in the drain, corresponding to a
50 mm water column. The water trap must therefore be fitted as illustrated to prevent it from
drying out and to avoid return flow.
The connection of the water trap must be air-tight, otherwise air will be sucked into the unit and
condensate water will remain in the unit. It could cause water damage if the condensate tray
overflows and condensate water runs out of the unit.
After installing the water trap, you should test it as follows (the unit must be connected to the
duct system and the door must be closed):
Fill the condensate tray with water and start the unit at the highest fan speed level. Allow it to
run for several minutes. Then check that there is no water in the condensate tray.
The water trap may dry out and prevent water from draining off the condensate tray, as air will
then blow into the unit. The water trap should therefore be checked regularly, especially at the
end of the summer, and it should be filled with water if necessary. Increasing the height of the
water trap beyond the minimum requirements will minimize the need for refilling.
INFO
Nilan offers a water trap with a ball. The ball ensures that no air blows into the unit through the
condensate drain if the water trap dries out. This ensures that water in the condensate tray can
drain off, which makes it unnecessary to check the condensate drain quite so often.
25
Connection bottom
Ø20 mm
min. 50 mm
min. 50 mm
Ø20 mm
min. 170 mm
Connection of water trap generally Connecting Nilan’s water trap with ball
26
Plumbing connections accessories
100
90-225
Ø76
162
Ø32
Ø32
Ø32
Ø20
123
W
ater trap with ball (option)
Comfort 200 Top (English)
BY NILAN
Dimensional drawing:
ll measurements are in mm.
A
Connection options with Nilan’s water trap:
1. Water trap with Ø32 mm reducing fitting
2. Reducing fitting for Ø20 mm
3. Reducing fitting for ¾" RG
4. Reducing fitting for ½" tube
27
Water heating element for after-heating (accessory) - duct mounted
CAUTION
The water heating element must be installed by an authorized plumber.
CAUTION
If you install the unit outdoors or outside the climate screen of the building, the unit must be
protected against frost.
The water heating element is for duct connection, and cannot be integrated into the unit.
The heating element is supplied as an accessory consisting of: Heating element with temperature
sensor T9 and frost thermostat B44, an actuator, a regulation valve and an autotransformer.
Activate the heating element via the control system.
Connect up the system, air it, and check for potential leaks. You can now start the unit. Following
adequate flushing of the system, check and clean the sediment trap.
2
3
Supply flow
4
1
Return flow
1. Water heating element
2. Actuator and regulation valve: Danfoss AME 140/24V 0-10V signal, 2-way valve VZ2 Kv0.4 (Nilan
supplies this) the Kvs value MUST be checked against the power supply.
Differential pressure: 0.1-0.6 bar.
With a supply flow temperature of 60°C and at maximum heat output the temperature is estimated
to fall with 20°C through the heating element.
3. Bleed valve (not supplied by Nilan)
4. Sediment trap (not supplied by Nilan)
28
Comfort 200 Top (English)
BY NILAN
IMPORTANT regarding Danfoss Actuator type AME 140:
einstallation of the actuator MUST be done in the following manner:
R
1. Disconnect the power supply and remove the cover from the actuator.
2. Release the gear by pressing and holding the button at the bottom of the actuator, while turning the
spindle fully (anticlockwise)
3. Install the actuator and connect the power supply.
4. Move DIP-switch no. 1 to ON, and then to OFF.
5. It automatically calibrates for up to 6 minutes. (The diode flashes during calibration. Then it lights
continuously).
6. Put the cover on the actuator.
29
Ventilation installation
Duct system
Legislation
ATTENTION
All work must be carried out by qualified persons and in compliance with existing legislation and
regulations.
Ducts
There are two systems by which to lead air through the house.
Spiral ducts
The spiral ducts are made from metal and are cut to size using an angle grinder. They are then
connected using bends and manifolds and are fitted in accordance with the blueprint. The ducts are
typically laid on the tie beams and are fixed with perforated band or they are suspended using
suspension band. Avoid unnecessary bending of the ducts.
To prevent sound from being transmitted from room to room, you should install silencers for each
room.
The ducts must be insulated to prevent heat loss and condensation. In some cases this can be avoided if
the ducts are run through the general insulation or inside the climate screen.
NilAIR tubes
NilAIR tubes constitute a flexible system that is easy to install. You can easily cut the tubes to size with
a Stanley knife and then situate them in accordance with the blueprint without having to use bends and
manifolds. You install a manifold box after the unit and let the tubes run from the box out to the
individual rooms.
With NilAIR tubes you do not need to install silencers for every room, as there is no risk of sound
transmission.
If you lead the tubes outside the climate screen, they must be insulated to avoid heat loss and
condensation. This is simpler than using spiral ducts, as NilAIR tubes are easily led through ordinary
insulation.
NilAIR tubes are more flexible than spiral ducts and you can therefore run the tubes in places that are
unsuitable for ordinary spiral ducts.
Unit
Nilan recommends that you install a flexible connection between the unit and the duct system.
This is to avoid vibrations from the unit being transmitted to the duct system, but also to lighten future
services of the unit that will make it necessary to move the unit.
Nilan offers flexible Sound Flex tubes that provide a flexible connection between the unit and the duct
system, but also reduce the sound transmission from the unit to the duct system.
The Sound Flex tubes are insulated against condensation. It may, however, be necessary with further
insulation in order to comply with local requirements to insulation of duct systems.
30
Comfort 200 Top (English)
BY NILAN
Extract air
nstall exhaust air valves in rooms that generate humidity. Place them strategically where they can
I
extract humidity most effectively.
Rooms that generate humidity:
• Bathroom
• Lavatory
• Kitchen
• Utility room
Supply air
Install supply air valves in living areas. Place them strategically so they cause minimum discomfort. It
is, for instance, not recommended that you install supply air valves in areas where people are inactive,
as the supply air may be experienced as draughty.
Living areas:
• Sitting room
• Living room
• Bedroom
• Home-office
Roof stacks
The position and design of air intake and air discharge should limit pressure oscillations in the
ventilation unit caused by wind. Their position should also prevent birds and other animals from getting
in. Finally, the position and design should ensure that air intake and the connected duct system are
kept free of plants and foreign objects.
You must place the air intake so that the risk of a short-circuit from the discharge air is minimized, with
attention to the prevailing wind direction.
The air intake should be placed at least 0.5 m from the roof surface. On black, flat roofs the distance
from the roof to the underside of the intake should be at least 1 m to ensure that warm air is not drawn
into the building in the summer. Air intakes should be located on the northern or eastern sides of
pitched roofs.
You should also install a silencer between the unit and the roof stacks to prevent noise from disturbing
your surroundings.
31
Installation example
32
Balancing
Important information
ATTENTION
To ensure the ventilation system operates optimally, it is important that it is balanced
correctly. We recommend that experts do this.
It is important to measure the total supply air and the total extract air. The system must have a
minimum vacuum, which means it must draw out more air than it blows in. This will prevent
dampness from being forced into the construction of the building.
Comfort 200 Top (English) BY NILAN
33
34
Comfort 200 Top (English)
BY NILAN
35
United Kingdom:
S L Services
25 St Leonards Road, Horsham
RH13 6EH West Sussex
Tlf. +44 (0) 7919 444452
stuart315@aol.com
www.nilanuk.com
Ireland:
Nilan Ireland
Ballylahive, Abbeydorney
Tlf. +353 (0) 87 9798361
maurice@nilan.ie
www.nilanireland.ie
Nilan A/S
Nilanvej 2
DK-8722 Hedensted
Tlf. +45 76 75 25 00
Fax +45 76 75 25 25
nilan@nilan.dk
www.nilan.dk
Document no.M24_Comfort_200-Top_GB
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