Turbovex CA350 User manual

page 1 of 27
Turbovex A/S
Industrivej 45, DK –9600 Aars
Phone: [phone] - e-mail: [e-mail] –www.turbovex.dk
User manual and installation guide
CA350
CA550
CA850
CA1200
Rev. 2023.08.25
Exchanger:

page 2 of 27
Turbovex A/S
Industrivej 45, DK –9600 Aars
Phone: [phone] - e-mail: [e-mail] –www.turbovex.dk
1. Content
1. CONTENT...............................................................................................................................................................2
2. GENERAL INFORMATION ................................................................................................................................3
2.1. FOREWORD.......................................................................................................................................................3
2.2. FIELDS OF APPLICATION ...................................................................................................................................3
2.3. INCORRECT APPLICATION .................................................................................................................................3
2.4. SCOPE OF DELIVERY .........................................................................................................................................3
2.5. MAIN COMPONENTS: ........................................................................................................................................4
2.6. FUNCTION OF THE UNIT ....................................................................................................................................5
3. INSTALLATION....................................................................................................................................................6
3.1. DIMENSIONS.....................................................................................................................................................6
3.2. PLACEMENT......................................................................................................................................................7
3.3. MINIMUM DISTANCES.......................................................................................................................................9
3.4. READYING UNIT FOR INSTALLATION...............................................................................................................10
3.5. PIPE PENETRATIONS AND INSTALLING THE MOUNTING BRACKET....................................................................11
4. ELECTRICAL CONNECTION..........................................................................................................................17
5. ELECTRICAL CONNECTION OF ACCESSORIES ......................................................................................18
6. OPERATION ........................................................................................................................................................19
6.1. REGULATING THE AIRFLOW............................................................................................................................19
6.2. REGULATING HEATING...................................................................................................................................19
6.3. MASTER /SLAVE ............................................................................................................................................19
7. MAINTENANCE..................................................................................................................................................20
7.1. CHANGING FILTERS ........................................................................................................................................20
7.2. CLEANING THE HEAT EXCHANGER..................................................................................................................21
8. TECHNICAL SPECIFICATIONS......................................................................................................................24
9. SCHEDULED MAINTENANCE INSPECTIONS ............................................................................................25
9.1. MAINTENANCE INSPECTIONS..........................................................................................................................25
9.2. MAINTENANCE CHECKLIST.............................................................................................................................26
10. DECLARATION OF CONFORMITY ...............................................................................................................27

page 3 of 27
Turbovex A/S
Industrivej 45, DK –9600 Aars
Phone: [phone] - e-mail: [e-mail] –www.turbovex.dk
2. General information
2.1. Foreword
This assembly and operation manual contains technical information as well as information
regarding the installation and maintenance of a ComfortAir unit.
2.2. Fields of application
ComfortAir is designed for comfort ventilation in areas such as cafeterias, offices, meeting
rooms and training- and educational facilities.
2.3. Incorrect application
ComfortAir is not intended for spot extractor systems and must not be used for purposes
other than those stated under Fields of Application.
2.4. Scope of delivery
ComfortAir is delivered with the following components as standard:
1. ComfortAir unit
2. Mounting bracket
Additionally, the following items are available as optional add-ons:
3. TX-electronics Control panel
1.
2.
3.

page 4 of 27
Turbovex A/S
Industrivej 45, DK –9600 Aars
Phone: [phone] - e-mail: [e-mail] –www.turbovex.dk
2.5. Main components:
1. Intake duct
2. Exhaust duct
3. Exhaust grille
4. Supply grille
5. Counterflow heat
exchanger
6. Supply fan
7. Exhaust fan
8. Bypass motor
9. Damper motor
10.Supply Filter
11.Main PCB
12.Electric heating element
(option)
13.Exhaust Filter
14.Condensate tray

page 5 of 27
Turbovex A/S
Industrivej 45, DK –9600 Aars
Phone: [phone] - e-mail: [e-mail] –www.turbovex.dk
2.6. Function of the unit
ComfortAir is a decentralized ventilation system with built-in heat recovery designed for
ventilation in educational facilities, office environments, and similar settings.
ComfortAir utilizes a counterflow heat exchanger (5.). The system efficiently utilizes the
already heated indoor air to warm up the fresh outdoor air by transferring the heat energy to
the supply air in the heat exchanger.
Airflow: The supply fan (6) draws fresh outdoor air through the intake duct (1) and supply
filter (10), and blows the air through the heat exchanger (5), from where the air is blown
through the supply grille (4) and evenly distributed into the room. The exhaust fan (7) draws
room air through the exhaust grille (3), through the exhaust filter (13) and the heat exchanger
(5), and exhausts the air through the exhaust duct (2).

page 6 of 27
Turbovex A/S
Industrivej 45, DK –9600 Aars
Phone: [phone] - e-mail: [e-mail] –www.turbovex.dk
3. Installation
3.1. Dimensions
Dimension(mm)
CA350
CA550
CA850
CA1200
A
801
930
1057
1213
B
356
422
480
630
C
714
812
930
1129
D
1212
1643
1918
2020
E
1322
1751
2003
2131
F
1016
1407
1628
1675
G
153
172
188
228
H
172
212
252
352
I
978
1369
1578
1595
J
170
188
210
266
K
149
169
195
248
L
259
304
356
431
M
101
118
127
202

page 7 of 27
Turbovex A/S
Industrivej 45, DK –9600 Aars
Phone: [phone] - e-mail: [e-mail] –www.turbovex.dk
3.2. Placement
The unit is typically installed on the wall just below the ceiling, as shown below.
With the ComfortAir series, it is also an option to install the system in suspended ceilings
to alter its visual expression in the room.

page 8 of 27
Turbovex A/S
Industrivej 45, DK –9600 Aars
Phone: [phone] - e-mail: [e-mail] –www.turbovex.dk
When installing ComfortAir, it is possible to create openings either through the wall, through
the roof, or a combination of both.

page 9 of 27
Turbovex A/S
Industrivej 45, DK –9600 Aars
Phone: [phone] - e-mail: [e-mail] –www.turbovex.dk
3.3. Minimum distances
The minimum distance that the system should have from other walls, cabinets, or similar
objects is described in the table below. Please note that the distance is not the same for
both sides, as it is necessary to provide optimal space for the exhaust grille.
•N describes the minimum required distance to be able to remove the decorative
side panels of the unit.
•O Describes the minimum required distance from the ceiling to be able to open the
service doors of the unit.
•P Describes the minimum distance from the exhaust grille to the wall.
•Q Describes the width of the installation without the side panels against the wall.
The sum of N, P, and Q describes the minimum distance required between 2 walls or other
features, for the system to function optimally and be accessible.
Dimension [mm]
CA350
CA550
CA850
CA1200
N
300
300
300
300
O
1122
1322
1035
1245
P
600
600
600
600
Q
1212
1643
1918
2020

page 10 of 27
Turbovex A/S
Industrivej 45, DK –9600 Aars
Phone: [phone] - e-mail: [e-mail] –www.turbovex.dk
3.4. Readying unit for installation
The side panels of the unit are secured with roller catches and are removed by pulling them
out and away from the unit. After that, the 4 screws that hold the mounting bracket and
transport brackets are loosened. The mounting bracket and transport brackets are then
removed.

page 11 of 27
Turbovex A/S
Industrivej 45, DK –9600 Aars
Phone: [phone] - e-mail: [e-mail] –www.turbovex.dk
3.5. Pipe penetrations and installing the mounting bracket
The pipe penetrations and mounting bracket need to be positioned correctly relative to
each other, and the measurements in the diagrams in this section describe this
relationship. Whether the penetrations are made first or the mounting bracket are installed
first can depend on the circumstances of the specific installation
It is important to adhere to the measurements indicated as "MIN" in the drawings, to be
able to place the unit on the mounting bracket.
Dimension [mm]
CA350
CA550
CA850
CA1200
MIN1
30
28
28
26
MIN2
25
25
23
23
R
604
604
607
606
S
94
114
138
167
T
1110
1521
1766
1842
U
1204
1635
1904
2008
V
132
187
227
329
W
113
133
163
207
X
1091
1505
1741
1802
Y
125
145
172
225

page 12 of 27
Turbovex A/S
Industrivej 45, DK –9600 Aars
Phone: [phone] - e-mail: [e-mail] –www.turbovex.dk
The mounting bracket is positioned level and securely mounted on the wall or ceiling,
depending on the chosen installation method. Two holes, 5 to 10 mm larger than the
diameter of the pipe (Pipe diameter), are drilled through the wall or ceiling.
Dimension [mm]
CA350
CA550
CA850
CA1200
Pipe diameter
160
200
250
315

page 13 of 27
Turbovex A/S
Industrivej 45, DK –9600 Aars
Phone: [phone] - e-mail: [e-mail] –www.turbovex.dk
Pipe penetrations in the wall must have a 1-2% outward down slope towards the exterior
wall to prevent any potential driving rain from entering the unit.

page 14 of 27
Turbovex A/S
Industrivej 45, DK –9600 Aars
Phone: [phone] - e-mail: [e-mail] –www.turbovex.dk
The 2 punch-outs in the unti that match the selected pipe penetration combination are cut
out, and the included pipe flanges are installed.
When installing pipe flanges, it is important to ensure a tight connection between the pipe
flanges and the unit.

page 15 of 27
Turbovex A/S
Industrivej 45, DK –9600 Aars
Phone: [phone] - e-mail: [e-mail] –www.turbovex.dk
The unit is lifted onto the mounting bracket and fixed in place using the 4 included bolts.
The side panels are clicked back into place in the roller catches of the unit.

page 16 of 27
Turbovex A/S
Industrivej 45, DK –9600 Aars
Phone: [phone] - e-mail: [e-mail] –www.turbovex.dk
Pipes are installed in the pipe penetrations.
For wall mounting, the 2 facade grilles are installed with the airflow direction downwards.
The pipes must not be twisted or pressed against the pipe flanges on the unit
using excessive force, as it will result in increased noise levels.
It is adviced to seal around the pipes in the pipe penetrations to avoid
unnecessary drafts through the conduits.

page 17 of 27
Turbovex A/S
Industrivej 45, DK –9600 Aars
Phone: [phone] - e-mail: [e-mail] –www.turbovex.dk
4. Electrical connection
ComfortAir is connected according to til the Electrical wiring diagrams
Electrical connection must be carried out by a licensed
electrician.
An isolator switch must be installed with the unit.

page 18 of 27
Turbovex A/S
Industrivej 45, DK –9600 Aars
Phone: [phone] - e-mail: [e-mail] –www.turbovex.dk
5. Electrical connection of accessories
ComfortAir accessories is connected according to the wiring diagram below.
Electrical connection must be carried out by a licensed
electrician.

page 19 of 27
Turbovex A/S
Industrivej 45, DK –9600 Aars
Phone: [phone] - e-mail: [e-mail] –www.turbovex.dk
6. Operation
6.1. Regulating the airflow
Refer to the user manual for the TX electronics control panel for more information.
The unit has 2 operating modes. A day mode, which provides the airflow specified by the
end user of the unit and a night mode, which operates at a slower speed to conserve energy
during the night.
Note: When regulating the airflow using a CO2 sensor, the system automatically adjusts the
fan speed up or down based on the need for the room.
6.2. Regulating heating.
Refer to the user manual for the TX electronics control panel for more information.
The desired temperature isset on the controlpanel. It is advisablenot to set the temperature
higher than the room temperature. The temperature of the supply air should be 2-3 degrees
Celsius below the room temperature to achieve optimal air circulation in the room.
When the unit is stopped, the last temperature setting is automatically saved, and the unit
will start with that setting when it is turned on again.
The unit features a modulating bypass system, which directs the air around the heat
exchanger according to the outside temperature.
6.3. Master / slave
If the unit is set up as master or slave, further information can be found in the User Manual
for Master/Slave operation.

page 20 of 27
Turbovex A/S
Industrivej 45, DK –9600 Aars
Phone: [phone] - e-mail: [e-mail] –www.turbovex.dk
7. Maintenance
7.1. Changing filters
In ComfortAir, the filters are located as shown in the image below. The CA350 and CA550
models have one large service door, while the CA850 and CA1200 have two smaller ones.
The service doors are opened by turning the locks a quarter turn with an 8mm hex key.
In units with one large service door, it is important that the locks closest to the wall are
opened first and closed last.
Be aware of the weight of the service doors when opening them.
The filters should be replaced when a filter alarm is triggered or as needed.