Vents TwinFresh Comfo SA-50 User manual

USER’S MANUAL
TwinFresh Comfo SA-50
TwinFresh ComfoSA-50-2
TwinFresh ComfoSA1-50
TwinFresh Comfo SA1-50-2
SINGLE-ROOM REVERSIBLE VENTILATOR

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Introduction
Use
Delivery set
Designation key
Technical parameters
Safety requirements
Design and operating logic
Mounting and set-up
Unit control
Connection to power mains
Maintenance
Storage and transportation rules
Manufacturing warranty
Acceptance certicate
Connection certicate
Warranty card
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CONTENT

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TwinFresh Comfo S-50
TECHNICAL PARAMETERS
INTRODUCTION
This user’s manual includes technical description, operation, installation and mounting guidelines, technical data for the single-room
reversible ventilator TwinFresh Comfo SA-50.
USE
The single-room ventilator TwinFresh Comfo SA-50 is designed to arrange permanent air exchange in ats, cottages, oces, hotels,
cafes and other residential and public premises.
The unit is equipped with a ceramic heat exchanger that provides extract air thermal energy utilization for warming up of supply air.
The total unit heat recovery eciency reaches 91%.
The unit is designed for through-the-wall mounting.
The unit telescopic structure makes it suitable for installation in the walls from 250 mm (9 13/16’’) up to 470 mm (18 7/16”) for the unit
TwinFresh Comfo SA-50 and from 120 mm (4 3/4’’) up to 470 mm (18 1/2”) for the unit TwinFresh Comfo SA-50-2.
The unit is rated for continuous operation always connected to power mains.
Transported medium must not contain any ammable or explosive mixtures, evaporation of chemicals, coarse dust, soot and oil
particles, sticky substances, brous materials, pathogens or any other harmful substances.
The unit is designed for operation at the ambient temperature from -20 °C (-4°F) up to +50 °C (+122 °F).
THE UNIT IS NOT INTENDED TO BE USED BY CHILDREN, PHYSICALLY OR MENTALLY DISABLED
PERSONS, PERSONS WITH SENSORY DISORDER, PERSONS WITH NO APPROPRIATE EXPERIENCE OR
EXPERTISE.
ONLY QUALIFIED EXPERTS ARE ALLOWED TO OPERATETHE UNIT AFTER APPROPRIATE INSTRUCTION
ABOUT ITS USE AND OPERATION.
INSTALL THE UNIT TO BE OUT OF REACH OF CHILDREN.
ventilator - 1 item;
fasteners - 1 item;
user’s manual - 1 item;
remote controller - 1 item;
lip seal - 1 item;
packing box - 1 item.
DESIGNATION KEY
The unit 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 unit must be grounded.
Ingress Protection (IP) rating from solid objects and liquids: IP 24.
The unit overall and connecting dimensions, external view, technical data are shown in g. 1, 2 and in table 1.
The unit design is regularly being improved, so some models can slightly dier from those ones described in this manual.
DELIVERY SET
TwinFresh Comfo SАX-50-Х
TwinFresh – single-room reversible ventilator
Unit designation
Designation of rectangular connecting duct
Air capacity [m
3
/h]
Outer box type
_ - metal hood
2 - tapered hood
Front panel type
_ - 125 M1 panel;
1 - 125 M1 panel + white glass + metal feet.

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Fig. 1. TwinFresh Comfo SA-50 overall and connecting dimensions
470 (22 7/16") 203(8")
234 (9 3/16")
190 (7 1/2")
190 (7 1/2")
250 (9 13/16")
150 (5 7/8")
Speed I II III
Voltage 50-60 Hz [V] 1~100-230
Power [W] 4,01 4,80 7,30
Max. current [A] 0,025 0,031 0,048
Max. air capacity [m3/h] (CFM) 11 (6,5) 27 (15,9) 53 (31,2)
RPM [min-1] 655 1360 2225
Noise level, 3 m [dB(A)] (Sones) 19 (0,3) 22 (0,5) 29 (0,81)
Max. transporting air temperature [°C] / (°F) from -20 (-4 ) up to +50 (+122)
Heat recovery eciency up to 91%
Heat exchanger type Ceramics
Table 1. Main technical parameters
General view and overall dimensions of the single-room reversible ventilator TwinFresh Comfo SA-50 are shown in g. 1.
Fig. 2. TwinFresh Comfo SA-50-2 overall and connecting dimensions
190 (7 1/2")
190 (7 1/2")
225 (8 7/8")
470 (22 7/16")
120 (4 3/4")
363(14 5/16")
150 (5 7/8")
General view and overall dimensions of the single-room reversible ventilator TwinFresh Comfo SA-50-2 are shown in g. 2.

5
TwinFresh Comfo S-50
Fig. 3. Unit design and operating logic
The single-room ventilator consists of a metal telescopic duct, ventilating unit with a decorative grille and an outer box, g. 3.
The unit has a telescopic structure with adjustable length that is regulated by position of the air duct of smaller cross section inside
the air duct of larger cross section.
Two lters and the heat exchanger are installed inside of the inner telescopic duct. The heat exchanger provides utilization of thermal
energy contained in extract air for warming up of supply air.
The lters are installed on both sides of the heat exchanger, g. 3 for cleaning of supply air and prevention of foreign object ingress
to the heat exchanger.
Connect the ventilating unit with a decorative grille equipped with louvre shutters to the casing of the heat recovery block on inner
side of the premise.
Install the outer block or the plastic ventilation grille depending on the unit modication from outside to prevent direct ingress of
water and large objects to the unit.
Outer box
Sealing lip
Outer telescopic duct
Inner telescopic duct
Two lters
Ceramic heat exchanger
Ventilating unit with a decorative grille
SAFETY REQUIREMENTS
While operating and mounting the unit consider the requirements of the present operation manual as well as general requirements of
all applicable local and national building and electrical codes and standards.
Before connecting the unit to power mains make sure that the unit is free of any visible damages or any other foreign objects inside the
casing that can damage the impeller blades. Otherwise please contact the service centre.
WARNING!
THE UNIT IS NOT RATED FOR OPERATION IN THE EXPLOSIVE AND
FLAMMABLE ENVIRONMENT. TAKE MEASURES TO PREVENT AIR BACK
DRAFTING FROM GAS OR OPENFLAME DEVICES.
DESIGN AND OPERATING LOGIC
WARNING!
DISCONNECTTHE UNIT FROM POWER SUPPLY PRIORTO ANY MOUNTING,
SERVICING, CONNECTION OR REPAIR OPERATIONS WITH THE UNIT.

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MOUNTING AND SETUP
The unit is designed for installation into a specially prepared hole inside a wall. The hole must be perpendicular to the wall plane, g.
4.
Fig. 4. Unit mounting
Fill the slots with a mounting foam
Outside Inside
155
(6 1/8")
Prior to mounting prepare holes for the telescopic duct, the outer box and the ventilating unit. Install the telescopic duct in the hole
and ll the gaps between the duct and the wall with a mounting foam. For easy mounting keep the clearances between the duct and the
wall within 5-10 mm (3/16’’-3/8’’). Fix the outer block according to the wall holes with four 4x35 screws included into delivery set and the
matching dowels 6x35.
Fix the air duct with smaller cross section to the wall with the screws 4x35 from the delivery set and the dowels 6x35. Then x the
ventilating unit to the latches. The hole spacing for fastening of the air duct with smaller cross section is shown in g. 5. The hole spacing
for the outer boxes fastening is shown in g. 6.
Fig. 5. Hole spacing for fastening of the ventilating unit
155
(6 1/8")
75,5
(3")
6 (1/4")
4 holes
Hole spacing for fastening of the air duct of smaller
cross section
155
(6 1/8")

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TwinFresh Comfo S-50
Fig. 6. Hole spacing for fastening of the outer boxes
150
(5 7/8")
75
(2 15/16")
6 (1/4")
4 holes
90
(3 9/16")
180
(7 1/16")
Hole spacing for fastening of the outer suspended box for
TwinFresh Comfo SA-50
Hole spacing for fastening of the suspended outer box for
TwinFresh Comfo SA-50-2
155
(6 1/8")
270
(10 5/8")
135
(5 5/16")
6 (1/4")
4 holes
95
(3 3/4")
190
(7 1/2")
155
(6 1/8")

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Fig. 7. Controls on the ventilating unit
Speed switches
Ventilation mode switch
UNIT CONTROL
The unit is controlled with a remote controller, g 8 or with the control buttons located on the ventilating unit casing, g. 7. The
control from the ventilating unit has limited possibilities. It enables solely activating the second and the third speed and setting three of
four available ventilation modes. The remote control has better control functionality.
Positions of the speed switch:
- second speed. The ventilator runs with 50% capacity.
- turn the fan o. The unit is o. The louvre shutters are closed.
- third speed. The unit operates with maximum air capacity.
Ventilation mode switch:
- Passive ventilation mode (louvre shutters are opened, fan does not operate).
- Heat recovery mode.
- Extract mode.
Fig. 8. Remote controller
Unit on/o Night mode
Heat recovery
Speed selection (3-2-1)
Passive ventilation
Air extract
Air supply at selected
speed
Setting humidity
threshold

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TwinFresh Comfo S-50
Unit control with the buttons on the ventilating unit
To turn the ventilator on select one three ventilation modes and activate the second or the third speed.
To turn the ventilator o set the speed switch to the middle position .
Use the ventilation mode switch to change the ventilation mode, g. 7.
Remote control with a remote controller
In case of remote control set the switches on the ventilating unit to the middle position.
To turn the ventilator ON/OFF press the button .
Press the button to activate the Night mode, activation of the night mode is conrmed by a long sound signal. Press
the same button to deactivate the Night mode, deactivation is conrmed by a short sound signal. When Night mode is
activated, the unit is turned to the rst speed when the light is o.
Speed selection
First speed — .
Second speed — .
Third speed — .
Operation modes
To change to Passive ventilation mode press the button . In this mode ventilation is performed without a fan.
To change to Supply mode press the button . In this mode the ventilation is performed at selected speed.
To change to Extract mode (exhaust mode by default) press the button . In this mode air is extracted at selected speed.
To change to Heat Recovery mode press the button . In this mode the fan operates 70 seconds in Supply mode and then
switches to Extract mode. Heat recovery is performed in this mode.
Humidity control
Humidity control is possible only in Heat Recovery mode.
To set the humidity threshold press the following buttons:
— 45%;
— 55%;
— 65%.
If the indoor humidity exceeds the set point, the unit is switched to the third speed. If the indoor humidity is within ±5% of the set
point, the unit operates at the second speed. If indoor humidity is below the set point, the unit switches to minimum speed. Press any speed
selection button to deactivate the humidity control.
HUMIDITY CONTROL IS POSSIBLE ONLY FROM THE REMOTE CONTROLLER!

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The unit is rated for connection to single-phase ac 1~100-230 V / 50-60 Hz power mains. For wireworks facilitation, the unit is supplied
with a pre-wired power cord and a plug.
Connect the unit to power mains through the external automatic circuit breaker with magnetic trip integrated into the xed wiring
system.
CONNECTION TO POWER MAINS
DISCONNECT THE UNIT FROM POWER MAINS PRIOR TO ANY OPERATIONS. CONNECT
THE UNIT TO A CORRECT INSTALLED AND GROUNDED SOCKET. THE RATED ELECTRICAL
PARAMETERS OF THE UNIT ARE SHOWN ON THE MANUFACTURING STICKER. ANY
INTERNALCONNECTIONMODIFICATIONSARENOTALLOWED AND RESULTINWARRANTY
LOSS.
Fig. 9. External connection diagram
L
G
D
+
N
L
N
G
D
+
L
G
D
+
N
L
1
2
3
L
G
D
+
N
L
N
G
D
+
L
G
D
+
N
L
1
2
3
Connection of external devices to the controller PCB
XS1
XS2
XS4
A1
XS3
First unit controller
(MASTER)
TB3
TB1
TB2
Power cable
CN7
TB1, TB2, TB3 - terminal blocks for connection
CN7 - contact socket
XP1 - power plug
XP1
1
2
3
4
5
6