Vents TwinFresh Comfo RA1-25 User manual

USER’S MANUAL
TwinFresh Comfo:
• RA1-25
• RA1-25-2
• SA-35
• SA-35-2
• SA1-35
• SA1-35-2
• RA-35
• RA-35-2
• RA1-35
• RA1-35-2
• RA-50
• RA-50-2
• RA1-50
• RA1-50-2
• RA-85
• RA-85-2
• RA1-85
• RA1-85-2
SINGLE-ROOM REVERSIBLE ENERGY
REGENERATION VENTILATOR

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2
Safety requirements 3
Purpose 5
Delivery set 5
Designation key 6
Main technical parameters 6
Design and operating logic 11
Mounting and set-up 13
Connection to power mains 20
Ventilator control 23
Maintenance 25
Troubleshooting 27
Storage and transportation regulations 27
Manufacturer's warranty 28
Acceptance certicate 29
Seller information 29
Installation certicate 29
Warranty Card 30
CONTENTS

3
• Read the user’s manual carefully prior to installing and operating the unit.
• Full the user’s manual requirements as well as the provisions of all the applicable local and national construction, electrical and
technical norms and standards.
• The warnings contained in the user’s manual must be considered most seriously since they contain vital personal safety information.
• Failure to follow the rules and safety precautions noted in this user’s manual may result in an injury or unit damage.
• After a careful reading of the manual, keep it for the entire service life of the unit.
• While transferring the unit control the User’s manual must be turned over to the receiving operator.
Symbol legend:
WARNING!
DO NOT!
SAFETY REQUIREMENTS
The user’s manual consisting of the technical details, operating instructions and technical specication applies to the installation and
mounting of the single-room energy regeneration reversible ventilator TwinFresh Comfo, (hereinafter «the unit» as mentioned in the «Safety
Requirements» and «Manufacturer’s Warranty» sections as well as in warnings and information blocks).
UNIT MOUNTING AND OPERATION SAFETY PRECAUTIONS
• Disconnect the unit from power mains prior
to any installation operations. • The unit must be grounded!
• Do not lay the power cable of the unit in
close proximity to heating equipment.
• While installing the unit follow the safety
regulations specic to the use of electric
tools.
• Do not change the power cable length at
your own discretion.
• Do not bend the power cable.
• Avoid damaging the power cable.
• Do not put any foreign objects on the power
cable.
• Unpack the unit with care.
• Do not use damaged equipment or cables
when connecting the unit to power mains.
• Do not operate the unit outside the
temperature range stated in the user’s
manual.
• Do not operate the unit in aggressive or
explosive environments.
• Do not touch the unit controls with wet
hands.
• Do not carry out the installation and
maintenance operations with wet hands.
• Do not wash the unit with water.
• Protect the electric parts of the unit against
ingress of water.

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4
UNIT MOUNTING AND OPERATION SAFETY PRECAUTIONS
• Do not allow children to operate the unit. • Disconnect the unit from power mains prior to
any technical maintenance.
• Do not store any explosive or highly ammable
substances in close proximity to the unit.
• When the unit generates unusual sounds,
odour or emits smoke disconnect it from
power supply and contact the Seller.
• Do not open the unit during operation. • Do not direct the air ow produced by the unit
towards open ame or ignition sources.
• Do not block the air duct when the unit is
switched on.
• In case of continuous operation of the unit
periodically check the security of mounting.
• Do not sit on the unit and avoid placing
foreign objects on it. • Use the unit only for its intended purpose.

5
The unit is designed to ensure continuous mechanical air exchange in houses, oces, hotels, cafes, conference halls and other utility and
public spaces.
The ventilator is equipped with a ceramic regenerator that enables supply of fresh ltered air heated by means of extract air heat energy
regeneration.
The ventilator is designed for through-the-wall mounting.
The telescopic ventilator design enables its installation in the walls with various thickness, see the table below:
Wall thickness Ventilator model
300 mm - 570 mm (11 13/16’’- 22 7/16”) • RA1-25
120 mm - 500 mm (4 3/4’’ - 19 11/16”) • RA1-25-2
250 mm - 470 mm (9 13/16’’ - 18 1/2”)
• SA-35
• SA1-35
• RA-35
• RA1-35
• RA-50
• RA1-50
• RA-85
• RA1-85
120 mm - 300 mm (4 3/4’’ - 11 13/16’’)
• SA-35-2
• SA1-35-2
• RA-35-2
• RA1-35-2
• RA-50-2
• RA1-50-2
• RA-85-2
• RA1-85-2
The ventilator is rated for continuous operation always connected to power mains.
Transported air must not contain any ammable or explosive mixtures, evaporation of chemicals, sticky substances, brous materials,
coarse dust, soot and oil particles or environments favourable for the formation of hazardous substances (toxic substances, dust, pathogenic
germs).
Name Number
Ventilator 1 item
Fastening set 1 item
Remote control 1 item
User's manual 1 item
Packing box 1 item
PURPOSE
THE UNIT MAY NOT BE OPERATED BY CHILDREN OR PERSONSWITH REDUCED PHYSICAL, MENTAL OR SENSORY
CAPACITIES, OR LACKING THE APPROPRIATE TRAINING.
THE UNIT MUST BE INSTALLED AND CONNECTED ONLY BY PROPERLY QUALIFIED PERSONNEL AFTER THE
APPROPRIATE BRIEFING.
THE CHOICE OF UNIT INSTALLATION LOCATION MUST PREVENT UNAUTHORIZED ACCESS BY UNATTENDED
CHILDREN.
DELIVERY SET

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6
TwinFresh Comfo RA1-25-2
Outer ventilation hood type
_ — standard ventilation hood
2 — ventilation hood for thin walls
Comfo Series
Cross-section prole of the connecting air duct
R -round cross-section
S - square cross-section
Integrated control system
Front panel type
_ - grille
1 - panel with a at front cover
Rated air capacity [m3/h]
The ventilator is designed for indoor application with the ambient temperature ranging from -20°C (-4 °F) up to +50°C (+122 °F) and relative
humidity up to 80%.
The ventilator is rated as a class I electric appliance.
Ingress Protection (IP) rating from solid objects and liquids IP 24.
The ventilator design is regularly improved, so some models may slightly dier from those ones described in this manual.
107
4 ⁄"
103
4 ⁄"
107
4 ⁄"
103
4 ⁄"
270 (10 ⁄")
280 (11")
205
(8 ⁄")
300-570
(11 ⁄"-22 ⁄")
133
(5 ¼")
50
(1 ⁄")
260
(10 ¼")
240
(
9 ⁄" )
205
( 8 ⁄")
120-500
(4 ¾"-19 ⁄")
150
(5 ⁄")
50
(1 ⁄")
205
( 8 ⁄")
107
4 ⁄"
103
4 ⁄"
107
4 ⁄"
103
4 ⁄"
VENTILATOR OVERALL DIMENSIONS, MM INCHES
TwinFresh Comfo RA1-25
TwinFresh Comfo RA1-25-2
DESIGNATION KEY
MAIN TECHNICAL PARAMETERS

7
120-300
(4 ¾"-11 ⁄")
57
(2 ¼")
144
(5 ⁄")
250-470
(9 ⁄"-18 ½")
133
(5 ¼")
57
(2 ¼")
300 (11 ⁄")
300
(11 ⁄")
310 (12 ⁄")
260
(10 ¼")
280
(11")
213
( 8 ⁄")
213
( 8 ⁄")
132
5 ⁄"
128
5 ⁄"
250-470
(9 ⁄"-18 ½")
133
(5 ¼")
3 1/8"
80
(3 ⁄")
300
(11 ⁄")
280
(11")
240
( 9 ⁄")
240
( 9 ⁄")
120-300
(4 ¾"-11 ⁄")
80
(3 ⁄")
144
(5 ⁄")
300 (11 ⁄")
310 (12 ⁄")
260
(10 ¼")
132
5 ⁄"
128
5 ⁄"
132
5 ⁄"
128
5 ⁄"
132
5 ⁄"
128
5 ⁄"
120-300
(4 ¾"-11 ⁄")
65
(2 ⁄")
144
(5 ⁄")
250-470
(9 ⁄"-18 ½")
133
(5 ¼")
65
(2 ⁄")
300 (11 ⁄")
300
(11 ⁄")
310 (12 ⁄")
260
(10 ¼")
280
(11")
213
( 8 ⁄")
213
( 8 ⁄")
157
6 ⁄"
153
6"
250-470
(9 ⁄"-18 ½")
133
(5 ¼")
86
(3 ⁄")
300
(11 ⁄")
280
(11")
240
( 9 ⁄")
157
6 ⁄"
153
6"
157
6 ⁄"
153
6"
120-300
(4 ¾"-11 ⁄")
86
(3 ⁄")
144
(5 ⁄")
300 (11 ⁄")
310 (12 ⁄")
260
(10 ¼")
157
6 ⁄"
153
6"
240
( 9 ⁄")
TwinFresh Comfo RA1-35
TwinFresh Comfo RA1-50
TwinFresh Comfo RA1-85
TwinFresh Comfo RA-35-2
TwinFresh Comfo RA-35
TwinFresh Comfo RA1-35-2

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8
120-300
(4 ¾"-11 ⁄")
65
(2 ⁄")
144
(5 ⁄")
250-470
(9 ⁄"-18 ½")
133
(5 ¼")
65
(2 ⁄")
300 (11 ⁄")
300
(11 ⁄")
310 (12 ⁄")
260
(10 ¼")
280
(11")
213
( 8 ⁄")
213
( 8 ⁄")
157
6 ⁄"
153
6"
250-470
(9 ⁄"-18 ½")
133
(5 ¼")
86
(3 ⁄")
300
(11 ⁄")
280
(11")
240
( 9 ⁄")
157
6 ⁄"
153
6"
157
6 ⁄"
153
6"
120-300
(4 ¾"-11 ⁄")
86
(3 ⁄")
144
(5 ⁄")
300 (11 ⁄")
310 (12 ⁄")
260
(10 ¼")
157
6 ⁄"
153
6"
240
( 9 ⁄")
TwinFresh Comfo RA-50
TwinFresh Comfo RA-85
TwinFresh Comfo RA1-50-2
TwinFresh Comfo RA1-85-2
TwinFresh Comfo RA-50-2
TwinFresh Comfo RA-85-2
120-300
(4 ¾"-11 ⁄")
65
(2 ⁄")
144
(5 ⁄")
250-470
(9 ⁄"-18 ½")
133
(5 ¼")
65
(2 ⁄")
300 (11 ⁄")
300
(11 ⁄")
310 (12 ⁄")
260
(10 ¼")
280
(11")
213
( 8 ⁄")
213
( 8 ⁄")
250-470
(9 ⁄"-18 ½")
133
(5 ¼")
86
(3 ⁄")
300
(11 ⁄")
280
(11")
240
( 9 ⁄")
240
( 9 ⁄")
120-300
(4 ¾"-11 ⁄")
86
(3 ⁄")
144
(5 ⁄")
300 (11 ⁄")
310 (12 ⁄")
260
(10 ¼")
150
5 ⁄"
135
5 ⁄"
150
5 ⁄"
135
5 ⁄"
150
5 ⁄"
135
5 ⁄"
150
5 ⁄"
135
5 ⁄"
TwinFresh Comfo SA1-35
TwinFresh Comfo SA-35

9
120-300
(4 ¾"-11 ⁄")
65
(2 ⁄")
144
(5 ⁄")
250-470
(9 ⁄"-18 ½")
133
(5 ¼")
65
(2 ⁄")
300 (11 ⁄")
300
(11 ⁄")
310 (12 ⁄")
260
(10 ¼")
280
(11")
213
( 8 ⁄")
213
( 8 ⁄")
250-470
(9 ⁄"-18 ½")
133
(5 ¼")
86
(3 ⁄")
300
(11 ⁄")
280
(11")
240
( 9 ⁄")
240
( 9 ⁄")
120-300
(4 ¾"-11 ⁄")
86
(3 ⁄")
144
(5 ⁄")
300 (11 ⁄")
310 (12 ⁄")
260
(10 ¼")
150
5 ⁄"
135
5 ⁄"
150
5 ⁄"
135
5 ⁄"
150
5 ⁄"
135
5 ⁄"
150
5 ⁄"
135
5 ⁄"
TwinFresh Comfo SA1-35-2
TwinFresh Comfo SA-35-2
VENTILATOR TECHNICAL DATA
TwinFresh Comfo RA1-25, TwinFresh Comfo RA1-25-2
Speed I II III
Supply Voltage, 50-60 Hz [V] 1~100-230
Air Capacity [m3/h] (CFM) 7 (4) 15 (9) 24 (14)
Power [W] 3,50 3,95 5,32
Current [A] 0,023 0,026 0,036
RPM [min-1] 1190 1330 2420
Noise Level, 1 m [dB(A)] (Sones) 31 (0,9) 35 (1,3) 43 (2,5)
Noise Level, 3 m [dB(A)] (Sones) 22 (0,4) 25 (0,5) 33 (1,1)
Outdoor noise attenuation [dB(A)] (Sones) 16 (0,4)
Heat Recovery Eciency up to 85%
TwinFresh Comfo RA-35, TwinFresh Comfo RA1-35, TwinFresh Comfo RA-35-2, TwinFresh Comfo RA1-35-2
Speed I II III
Supply Voltage, 50-60 Hz [V] 1~100-230
Air Capacity [m3/h] (CFM) 10 (6) 20 (12) 30 (18)
Power [W] 3,93 4,39 5,10
Current [A] 0,023 0,026 0,032
RPM [min-1] 745 1075 1670
Noise Level, 1 m [dB(A)] (Sones) 27 (0,6) 32 (1,0) 38 (2,0)
Noise Level, 3 m [dB(A)] (Sones) 18 (0,4) 23 (0,5) 28 (0,7)
Outdoor noise attenuation [dB(A)] (Sones) 17 (0,4)
Heat Recovery Eciency up to 90%

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10
VENTILATOR TECHNICAL DATA
TwinFresh Comfo RA-50, TwinFresh Comfo RA1-50, TwinFresh Comfo RA-50-2, TwinFresh Comfo RA1-50-2
Speed I II III
Supply Voltage, 50-60 Hz [V] 1~100-230
Air Capacity [m3/h] (CFM) 14 (8) 28 (16) 54 (32)
Power [W] 3,80 3,96 5,61
Current [A] 0,024 0,026 0,039
RPM [min-1] 610 800 1450
Noise Level, 1 m [dB(A)] (Sones) 22 (0,4) 29 (0,7) 32 (1,0)
Noise Level, 3 m [dB(A)] (Sones) 13 (0,2) 20 (0,4) 23 (0,5)
Outdoor noise attenuation [dB(A)] (Sones) 18 (0,4)
Heat Recovery Eciency up to 90%
TwinFresh Comfo RA-85, TwinFresh Comfo RA1-85, TwinFresh Comfo RA-85-2, TwinFresh Comfo RA1-85-2
Speed I II III
Supply Voltage, 50-60 Hz [V] 1~100-230
Air Capacity [m3/h] (CFM) 36 (21) 59 (35) 85 (50)
Power [W] 4,74 6,56 9,65
Current [A] 0,034 0,050 0,071
RPM [min-1] 1000 1500 2045
Noise Level, 1 m [dB(A)] (Sones) 29 (0,8) 35 (1,5) 44 (3,5)
Noise Level, 3 m [dB(A)] (Sones) 19 (0,4) 25 (0,7) 34 (1,4)
Outdoor noise attenuation [dB(A)] (Sones) 18 (0,4)
Heat Recovery Eciency up to 90%
TwinFresh Comfo SA-35, TwinFresh Comfo SA1-35, TwinFresh Comfo SA-35-2, TwinFresh Comfo SA1-35-2
Speed I II III
Supply Voltage, 50-60 Hz [V] 1~100-230
Air Capacity [m3/h] (CFM) 12 (7) 25 (15) 37 (22)
Power [W] 4,54 5,18 6,10
Current [A] 0,026 0,031 0,037
RPM [min-1] 851 1330 1715
Noise Level, 1 m [dB(A)] (Sones) 28 (0,7) 33 (1,1) 39 (2,0)
Noise Level, 3 m [dB(A)] (Sones) 19 (0,4) 24 (0,5) 29 (0,7)
Outdoor noise attenuation [dB(A)] (Sones) 18 (0,4)
Heat Recovery Eciency up to 88%

11
The ventilator consists of the telescopic air duct with an adjustable length regulated by position of the inner air duct inside the outer air
duct, the ventilation unit and the ventilation hood.
Two lters and the ceramic regenerator are located in the inner duct of the telescope.
The lters are designed to purify supply air and prevent foreign object ingress to the regenerator and the fan.
The ceramic regenerator uses extract air heat energy to warm up supply air ow.
The regenerator is equipped with a pull cord inside to facilitate its withdrawal from the ventilator.
The regenerator is heat insulated with a specially designed insulating material.
The ventilation unit must be installed on inner side of the wall. The ventilation unit is equipped with automatic shutters that shut the air
duct o during the ventilator standby and prevent air back draft.
The ventilation hood must be installed on the outer wall side. It is used for directed air discharge and prevention of ingress of water and
other objects to the ventilator.
VENTILATOR DESIGN
Outer air duct
Outer part of the
telescopic air duct.
Inner air duct
Inner part of the tele-
scopic air duct.
Ventilation unit
Is used to generate air ow by means of
the fan. The decorative grille protects the
fan against ingress of foreign objects
from the premises. The ventilation unit is
equipped with automatic shutters open-
ing when the ventilator is on and clos-
ing when it is o, thus preventing back
air ow.
Outer ventilation hood
Prevents direct water and foreign objects
ingress to the ventilator.-
TwinFresh Comfo RA1-25
TwinFresh Comfo RA1-25-2
TwinFresh Comfo RA-35
TwinFresh Comfo RA-35-2
TwinFresh Comfo RA1-35
TwinFresh Comfo RA1-35-2
TwinFresh Comfo RA-50
TwinFresh Comfo RA-50-2
TwinFresh Comfo RA1-50
TwinFresh Comfo RA1-50-2
TwinFresh Comfo RA-85
TwinFresh Comfo RA-85-2
TwinFresh Comfo RA1-85
TwinFresh Comfo RA1-85-2
TwinFresh Comfo SA-35
TwinFresh Comfo SA-35-2
TwinFresh Comfo SA1-35
TwinFresh Comfo SA1-35-2
Filter
Designed to clean supply air
ow and prevent dust and for-
eign objects ingress to the venti-
lator. The lters prevent regener-
ator soiling.
Ceramic regenerator
Provides extract air heat
energy regeneration to
warm up supply air ow.
Mounting plate
A mounting plate for installation
the ventilation unit on the wall
and connecting the ventilator to
power supply.
DESIGN AND OPERATING LOGIC

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12
AUTOMATIC SHUTTERS OPERATION
VENTILATOR OPERATING MODES
The ventilator has four ventilation modes:
• Natural air supply - the automatic shutters are opened, the fan does not run
• Supply - the ventilator supplies fresh air to the premise no matter of CN7 jumper position.
• Ventilation — the ventilator operates in permanent supply or extract mode at set speed depending on CN7 jumper position.
• Regeneration - the ventilator operates in reversible mode with heat and humidity regeneration.
Ventilator is o - shutters are closed Ventilator is on - shutters are open
A
I
R
E
X
T
R
A
C
T
A
I
R
S
U
P
P
L
Y
CYCLE I
CYCLE II
7
0
s
e
c
7
0
s
e
c
-10 °С
-10 °С
+20 °С
+20 °С
+17 °С
+17 °С
-7 °С
-7 °С
In Regeneration mode the ventilator operates in two cycles, 70 seconds each.
Cycle I. Warm stale air is extracted from the room. As it ows through the regenerator, it heats and moisturizes the regenerator, transferring
up to 90% heat energy. In 70 seconds as the ceramic regenerator gets warmed the ventilator is switched to supply mode.
Cycle II. Fresh intake air from outside ows through the ceramic regenerator and absorbs accumulated moisture and heat up to the room
temperature. In 70 seconds as the ceramic regenerator gets cooled down, the ventilator is switched into extract mode and the cycle is
renewed.

13
TWINFRESH COMFO RA125 VENTILATOR MOUNTING
1. Prepare a thorough hole in the wall for the ventilator mounting. The
hole size and prole is shown in the gure below.
2. Install the telescopic air duct inside the wall. The telescopic air duct
end must protrude to the distance A stated below:
110
( 4 ⁄")
While mounting several connected in series ventilators cut out a
cavity for the cable layout during the hole preparation to enable
series connection of several ventilators.
A
Inside Outdoors
Ventilator model A, mm (inches)
TwinFresh Comfo RA1-25 10 (3/8’’)
TwinFresh Comfo RA1-25-2 10 (3/8’’)-140 (5 1/2’’)
3. Fill the gaps between the wall and the telescopic air duct with a
mounting foam.
4. Install the lter, the ceramic regenerator, another lter and the air
ow rectier in the consecutive order inside the telescopic air duct.
READ THE USER’S MANUAL PRIOR TO MOUNTING THE VENTILATOR.
CAUTION!
DO NOT BLOCK THE AIR DUCT OF THE INSTALLED VENTILATOR WITH DUST
ACCUMULATING MATERIALS, SUCH AS CURTAINS, CLOTH SHUTTERS, ETC. AS IT
PREVENTS AIR CIRCULATION IN THE ROOM. BESIDES, THE CURTAINS MAY PREVENT
NORMAL AIR CIRCULATION AND REDUCE THE VENTILATOR PERFORMANCE.
MOUNTING AND SETUP

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14
5. Remove the screw in the bottom part of the ventilator. 6. Remove the front panel of the ventilation unit.
7. Prepare four fastening holes and x the back cover of the ventilation unit on the wall with fours 4x40 screws and 6x40 dowels from the
delivery set. Prior to starting xation of the back cover of the ventilation unit make arrangements for the power cable layout in accordance
to the selected method, see Connection to Power Mains, page 20.
150
(5 ⁄’’) 6 ( ¼’’)
4 holes
150
(5 ⁄’’)
75
(2 ⁄’’)
75
(2 ⁄’’)
110 ( 4 ⁄’’)
Hole spacing for the fan fasteners mm [inches]
8. Connect the contact socket of the switches to the circuit board and install the front panel of the ventilation unit.

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TWINFRESH COMFO RA35, RA50 AND RA85 VENTILATOR MOUNTING
1. To mount the ventilator prepare a thorough hole in the wall. The
hole size and prole are shown in the gure below.
2. After preparing a through hole in the wall cut out a 25 mm (1’’) deep
recess for laying of the cables and the contact sockets connected to
the mounting plate.
The recommended recess form is shown in the drawing below.
A
Model А [mm] A [inches]
TwinFresh Comfo RA-35 Ø 140 Ø 5 ½”
TwinFresh Comfo RA-50 Ø 160 Ø 6 ⁄”
While mounting several connected in series ventilators provide a
cavity for the cable layout during the hole preparation to enable
series connection of several ventilators.
max 180 (max 7 ⁄")
TwinFresh Comfo RA-35
max 80
(max 3 ⁄")
R90
(R3 9/16"")
max 200 (max 7 ⁄")
max 90
(max 3 ⁄")
R100
(R4")
TwinFresh Comfo RA-50
TwinFresh Comfo RA-85
While mounting several connected in series ventilators provide a
cavity for the cable layout during the recess preparation to enable
series connection of several ventilators.
3. Install the telescopic air duct inside the wall. The telescopic air duct end must protrude to the distance A stated below:
A
Inside Outdoors
Ventilator model A, mm (inch)
TwinFresh Comfo RA-35 10 (3/8’’)
TwinFresh Comfo RA1-35 10 (3/8’’)
TwinFresh Comfo RA-35-2 10 (3/8’’)-110(4 5/16’’)
TwinFresh Comfo RA1-35-2 10 (3/8’’)-110(4 5/16’’)
TwinFresh Comfo RA-50 10 (3/8’’)
TwinFresh Comfo RA1-50 10 (3/8’’)
TwinFresh Comfo RA-50-2 10 (3/8’’)-110(4 5/16’’)
TwinFresh Comfo RA1-50-2 10 (3/8’’)-110(4 5/16’’)
TwinFresh Comfo RA-85 10 (3/8’’)
TwinFresh Comfo RA1-85 10 (3/8’’)
TwinFresh Comfo RA-85-2 10 (3/8’’)-110(4 5/16’’)
TwinFresh Comfo RA1-85-2 10 (3/8’’)-110(4 5/16’’)

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4. Connect the mounting plate following the Wiring Diagram section, page 20. Prepare four fastening holes and x the mounting plate on
the wall with fours 4x40 screws and 6x40 dowels from the delivery set. Align the telescopic air duct with respect to the mounting plate and ll
the gaps between the wall and the telescopic air duct with a mounting foam. The telescopic air duct must not protrude from the mounting
plate surface.
5. Install the ventilation unit on the mounting plate. The ventilation unit is xed with magnets.

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TWINFRESH COMFO SA35 VENTILATOR MOUNTING
1. To mount the ventilator prepare a thorough hole in the wall. The
hole size and prole is shown in the gure below.
2. After preparing a through hole in the wall cut out a 25 mm (1’’) deep
recess for laying of the cables and the contact sockets connected to
the mounting plate. The recommended recess form is shown in the
drawing below.
160
( 6 5/16")
While mounting several connected in series ventilators cut out a
cavity for the cable layout during the hole preparation to enable
series connection of several ventilators.
max 180 (max 7 ⁄")
TwinFresh Comfo SA-35
max 80
(max 3 ⁄")
While mounting several connected in series ventilators provide a
cavity for the cable layout during the recess preparation to enable
series connection of several ventilators.
3. Install the telescopic air duct inside the wall. The telescopic air duct end must protrude to the distance A stated below:
A
Inside Outdoors
Ventilator model A, mm (inch)
TwinFresh Comfo SA-35 0 (0’’)
TwinFresh Comfo SA1-35 0 (0’’)
TwinFresh Comfo SA-35-2 10 (3/8’’)-110(4 5/16’’)
TwinFresh Comfo SA1-35-2 10 (3/8’’)-110(4 5/16’’)
4. Install the lter, the ceramic regenerator, another lter and the air ow rectier in the consecutive order inside the telescopic air duct.
Connect the mounting plate following the Wiring Diagram section, page 20. Prepare four fastening holes and x the mounting plate on the
wall with fours 4x40 screws and 6x40 dowels from the delivery set. Align the telescopic air duct with respect to the mounting plate and ll
the gaps between the wall and the telescopic air duct with a mounting foam. The telescopic air duct must not protrude from the mounting
plate surface.

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VENTILATION HOOD MOUNTING
1. Mark the fastening holes for the outer ventilation hood and drill holes for the dowel 6x40. For marking convenience use the ventilation
hood back part.
TwinFresh Comfo RA-25
TwinFresh Comfo RA1-25
160 mm
(6 ⁄")
Ø6 mm (¼")
4 holes
180 mm
(7 ⁄")
TwinFresh Comfo RA-35
TwinFresh Comfo RA1-35
TwinFresh Comfo RA-50
TwinFresh Comfo RA1-50
TwinFresh Comfo RA-85
TwinFresh Comfo RA1-85
200 mm
(7 ⁄")
Ø6 mm (¼")
4 .
220 mm
(8 ⁄")
TwinFresh Comfo RA-25-2
TwinFresh Comfo RA1-25-2
138 mm
(5 ⁄")
Ø6,4 mm (
¼")
4 holes
217 mm
(8 ⁄")
TwinFresh Comfo SA-35-2
TwinFresh Comfo SA1-35-2
TwinFresh Comfo RA-35-2
TwinFresh Comfo RA1-35-2
TwinFresh Comfo RA-50-2
TwinFresh Comfo RA1-50-2
TwinFresh Comfo RA-85-2
TwinFresh Comfo RA1-85-2
194 mm
(7 5⁄8")
Ø6 mm (¼")
4 отв.
247 mm
(9 ¾")
5. Install the ventilation unit on the mounting plate. The ventilation unit is xed with magnets.

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VENTILATION HOOD MOUNTING
2. Insert the dowels 6x40 from the delivery set into the holes.
3. Disassemble the outer ventilation hood to enable access to the fastening holes.
Take o the front part of the outer ventilation hood.
1 2
Remove 5 screws and take o the front part of the ventilation hood.
4. Fix the back part of the ventilation hood on the wall with 4x40 screws from the delivery set. For TwinFresh Comfo SA-35 and TwinFresh
Comfo SA1-35: x the back cover of the ventilation hood to the outer air duct with screws.
5. Mount the front part of the ventilation hood.

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The ventilator is rated for connection to single-phase ac 1~100-230 V / 50-60 Hz power main using a pre-wire pre-wired power cord and a plug.
Connect the ventilator to power mains through the automatic circuit breaker with magnetic trip integrated into the xed wiring system.
XS3
CN7
TB2
TB1
TB3 L
1
2
3
1
2
3
4
5
6
L
G
D
+
N
L
G
D
+
N
XS4
A1 Ventilator controller
XS2 XS1
1~100-230 V
50-60 Hz
VENTILATOR WIRING DIAGRAM
TWINFRESH COMFO RA125
TWINFRESH COMFO RA1252
The jumper between the contacts 1 and 2 or 2 and 3 of CN7 socket
connector determines a ow direction in Ventilation mode.
If the jumper connects the contacts 1 and 2, air is extracted from
the room in Ventilation mode (factory setting).
If the jumper connects the contacts 2 and 3, air is supplied in
Ventilation mode.
DISCONNECT THE VENTILATOR FROM POWER MAINS PRIOR TO ANY ELECTRIC INSTALLATION OPERATIONS.
CONNECTION TO POWER MAINS SHALL ONLY BE PERFORMED BY A PROFESSIONAL ELECTRICIAN QUALIFIED FOR
UNASSISTED OPERATIONS WITH ELECTRICAL INSTALLATIONS UP TO 1000 V AFTER CAREFUL STUDY OF THE PRESENT
USER’S MANUAL.
THE RATED ELECTRICAL PARAMETERS ARE STATED ON THE RATING PLATE. ANY TAMPERING WITH THE INTERNAL
CONNECTIONS IS PROHIBITED AND WILL VOID THE WARRANTY.
CONNECTION TO POWER MAINS