Vents TwinFresh Comfo RA1-50 User manual

USER’S MANUAL
Single-room reversible
energy recovery ventilator
TwinFresh Expert RA1-50
TwinFresh Expert Duo RA1-30
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TwinFresh Expert
Read the user’s manual carefully prior to installing and operating the unit.
Fulfil 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:
The user’s manual consisting of the technical details, operating instructions and technical specification applies to the installation and
mounting of the single-room energy regeneration reversible ventilator TwinFresh Expert (Duo) (hereinafter referred to as «ventilator» or
«unit» as mentioned in the «Safety Requirements» and «Manufacturer’s Warranty» sections as well as in warnings and information blocks).
CONTENTS
SAFETY REQUIREMENTS
Safety requirements ..............................................................................2
Purpose .................................................................................................4
Delivery set............................................................................................4
Designation key.....................................................................................4
Technical data.......................................................................................5
Unit design and operating logic............................................................6
Mounting and set-up .............................................................................9
Connection to power mains and control .............................................12
Technical maintenance .......................................................................17
Troubleshooting...................................................................................19
Storage and transportation regulations...............................................19
Manufacturer’s warranty......................................................................20
Acceptance certificate ........................................................................21
Seller information.................................................................................21
Installation certificate...........................................................................21
Warranty card......................................................................................21
WARNING!
DO NOT!
UNIT MOUNTING AND OPERATION SAFETY PRECAUTIONS
• Disconnect the unit from power mains
prior to any installation operations. • Unpack the unit with care.
• Do not lay the power cable of the unit in
close proximity to heating equipment.
• While installing the unit follow the safety
regulations specific to the use of electric
tools.
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• 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.
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
flammable 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 flow produced by the
unit towards open flame 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.
THE PRODUCT MUST BE COLLECTED SEPARATELY AT THE END OF SERVICE LIFE.
DO NOT DISPOSE OF AS UNSORTED MUNICIPAL WASTE.
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TwinFresh Expert
The ventilator is designed to ensure continuous mechanical air exchange in flats, cottages, hotels, cafes and other domestic and
public premises.
The ventilator is equipped with a ceramic regenerator that enables supply of fresh filtered air heated by means of extract air heat
energy regeneration.
The ventilator is designed for wall flush mounting.
PURPOSE
The unit is rated for continuous operation.
Transported air must not contain any flammable or explosive mixtures, evaporation of chemicals, sticky substances, fibrous
materials, coarse dust, soot and oil particles or environments favourable for the formation of hazardous substances (toxic substances,
dust, pathogenic germs).
THE UNIT MAY NOT BE OPERATED BY CHILDREN OR PERSONS WITH 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
Name
Number
TwinFresh Expert
RA1-50
TwinFresh Expert
Duo RA1-30
Indoor unit of the ventilator 1 item 1 item
Air duct 1 item 1 item
Air flow separator - 3-6 items
Sound-absorbing material 1 item -
Assembled cartridge 1 item 1 item
Outer ventilation hood 1 item 1 item
Remote control 1 item 1 item
Cardboard template 1 item 1 item
Fastening set 2 packs 2 packs
User's manual 1 item 1 item
Mounting hood installation instruction 1 item 1 item
Packing box 1 item 1 item
DESIGNATION KEY
TwinFresh Expert (Duo) R A 1 - 50 L - 2
Air duct length
_ - 500 mm
L —700 mm
Rated air capacity [m3/h]
Front panel modification
1 - flat front panel
Automation type
A — automation type
Air duct cross section
R — round
Ventilator series
Expert: series of ventilation units with one fan
Expert Duo: series of ventilation units with two fans
Ventilation hood model
TwinFresh Expert RA1-50
_ — EH white 160
2 — EH-2 grey 160
5 - NP 160 white
8 - MVVM 162 for mounting from
the inside
TwinFresh Expert Duo RA1-30
_ - EHD-2 grey 160
8 - MVVM 162 for mounting from the inside
11 - EHD-11 white 160
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TECHNICAL DATA
The ventilator is designed for indoor application at ambient temperature from -30 °C (-22 °F) up to +50 °C (+122 °F) and relative humidity
up to 97 %.
The ventilator is rated as a class II electric appliance.
Hazardous parts access and water ingress protection rating IP 24.
The unit design is constantly improved, so some models may slightly differ from the ones depicted herein.
TECHNICAL DATA
Speed TwinFresh Expert RA1-50 TwinFresh Expert Duo RA1-30
I II III I II III
Unit voltage [V/50-60 Hz] 1~100-240 1~100-240
Power [W] 3.61 4.15 5.2 2,17 3,66 6,62
Current [A] 0,025 0,030 0,039 0,026 0,039 0,066
Air capacity [m3/h] (CFM) 15 (9) 30 (19) 50 (29) 10(6) 20(12) 30(18)
Filters G3 (MERV 7);
F8 (MERV 13) option
G3 (MERV 7)
Transported air temperature [˚C(˚F)] from -30 (-22) up to 50 (122)
Noise level, 1 m [dB(A) (Sones)] 20 (0,6) 27 (1,0) 30 (1,2) 33(1,2) 40(2,0) 43(2,5)
Noise level, 3 m [dB(A) (Sones)] 11 (0,3) 18 (0,5) 21 (0,6) 24(0,5) 31(1,0) 34(1,2)
Noise level attenuation [dB(A) (Sones)] 42 (2,5) 42(2,5)
Heat recovery efficiency [%] 97 90 82 85 80 75
Ingress protection IP 24 IP 24
The air duct length depends on the unit model, refer to the Designation
Key, page 4.
Air duct length
TwinFresh Expert RA1-50 250(150*)-500 (9 13/16”(5 7/8”)-19 11/16”)
TwinFresh Expert RA1-50-L 250 (150*)-700 (9 13/16”(5 7/8”)-27 9/16”)
TwinFresh Expert Duo RA1-30 280-500 (11”-19 11/16”)
TwinFresh Expert Duo RA1-30-L 280-700 (11”-27 9/16”)
* minimum air duct length for TwinFresh Expert RA1-50 (L)- 2
The supplied ventilation hood model depends on the ventilator model.
The overall dimensions of the outer ventilation hood are stated in the
installation instruction.
The overall dimensions of the front panel are stated below.
160 ( 6 5⁄16")
Air duct length
Outer ventilation hood
Front panel
207
(8 1/8")
85
(3 3/8")
137
(5 3/8")
138
(5 7/16")
235
(9 1/4")
71
(2 13/16")
285
(11 1/4")
207
(8 1/8")
85
(3 3/8")
137
(5 3/8")
138
(5 7/16")
TwinFresh Expert RW-50 TwinFresh Expert Duo RW-50
OVERALL DIMENSIONS OF THE INDOOR UNIT, MM (INCH)
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TwinFresh Expert
UNIT DESIGN AND OPERATING LOGIC
VENTILATOR DESIGN
Filters
Clean the air flowing through the
ventilator of dust and foreign
objects. Prevent contamination of
the regenerator.
Front part of the indoor unit
Fulfils the decorative function. The design enables
to shut off the air duct in case of extended
downtime of the ventilator.
The front part of the TwinFresh Expert RW1-50
unit is used for air filtration.
Back part of the indoor unit
The assembly unit includes a circuit board and basic
control units located on the side of the indoor unit.
Back part of the indoor unit
The assembly unit includes a circuit board
and basic control units located on the side
of the indoor unit.
Cartridge
Construction consisting of fans and a
regenerator. Generates air flow, provides air
regeneration.
Cartridge
Construction consisting of a fan, a
regenerator and filters. Generates
air flow, provides energy
regeneration and air cleaning.
Air duct
Plastic air duct.
Air ow separators
Designed for separation of supply
and exhaust air streams.
Outer ventilation hood
Prevents ingress of water and foreign objects
into the ventilator.
Each ventilator model has a matching
ventilation hood model.
Sound-absorbing material
A layer of sound-absorbing material
for attenuation of noise generated
during the ventilator operation.
TwinFresh Expert RW1-50
TwinFresh Expert Duo RW1-30
TwinFresh Expert RA1-50
The ventilator consists of an indoor unit with a decorative front panel, a cartridge, an air duct with a sound absorbing layer and an
outer ventilation hood.
The cartridge is a basic functional part of the ventilator.
The cartridge consists of a fan, a regenerator and two filters that ensure rough air filtration and prevent ingress of dust and foreign
objects into the regenerator and the fan.
The indoor unit is equipped with automatic shutters that close during the ventilator standstill and prevent air backdraft.
TwinFresh Expert Duo RA1-30
The ventilator consists of an indoor unit with a decorative front panel and filters, a cartridge, an air duct with air flow separators and
an outer ventilation hood.
The filters ensure rough air filtration and prevent ingress of dust and foreign objects into the cartridge.
The cartridge is a basic functioning part of the ventilator.
It consists of a fan and a regenerator.
The outer ventilation hood is used to prevent direct ingress of water and other objects to the ventilator.
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Filter
Cleans the air flowing through the
ventilator of dust and foreign
objects. Prevents contamination
of the regenerator.
Fan
Generates air flow.
Regenerator
Provides extract
air energy
regeneration for warming up of
supply air flow.
Regenerator
Provides extract air energy
regeneration for warming up
of supply air flow.
Socket connector
Provides connection to the control board.
Fan
Generates air flow.
TwinFresh Expert RA-50 TwinFresh Expert Duo RA-50
CARTRIDGE DESIGN
TWINFRESH EXPERT RA1-50 OPERATION MODES
The ventilator has two operation modes:
Ventilation. The ventilator operates either in extract or supply mode at a set speed.
Regeneration. The ventilator operates in reversible mode with heat and humidity recovery.
Air supply. All the connected ventilation units in the network switch to air supply mode.
In Regeneration mode the ventilator operates in two cycles, 70 seconds each.
Cycle I. As warm stale extract air flows through the ceramic regenerator, it heats up and moisturizes the regenerator and transfers
up to 97 % of heat energy. In 70 seconds after the regenerator gets warmed the ventilator is switched to supply mode.
Cycle II. Fresh intake air from outside flows through the ceramic regenerator, absorbs accumulated moisture and is heated up to the
room temperature. In 70 seconds after the regenerator gets cooled down, the ventilator is switched to air extract mode and the cycle
is renewed.
A
I
R
E
X
T
R
A
C
T
A
I
R
S
U
P
P
L
Y
+20 ˚С
-7 ˚С
+20 ˚С
-7 ˚С
+17 ˚С
-10 ˚С
+17 ˚С
-10 ˚С
70 s
70 s
19.4 ˚F
19.4 ˚F
14 ˚F
14 ˚F
62.6 ˚F
62.6 ˚F
68 ˚F
68 ˚F
The cartridge is a solid block and cannot be dismantled.
The TwinFresh Expert RA1-50 unit has a cartridge with filters that can be easily removed for maintenance purposes.
The socket connector routed from the cartridge is connected to the control board in the back part of the indoor unit.
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TwinFresh Expert
TWINFRESH EXPERT DUO RA1-30 OPERATION MODES
The ventilator has three operation modes:
Ventilation. One fan operates in the air extract mode and the other fan operates in the air supply mode at set speed. The fans do not
change their rotation direction.
Air extract. Both fans operate in air extract mode at set speed.
In case of a sensor activation the ventilation unit follows one of two functioning algorithms to be set during setup of the ventilation unit
via the DIP switch. For details, see page 14.
Regeneration. One of the fans of the ventilator operates in extract mode and the other one in supply mode.
The fans change their rotation direction every 70 seconds.
Exhaust air Extract air
Intake air Supply air
Intake air
70 s
70 s
Supply air
Exhaust air Extract air
The shutters are closed The shutters are opened The indoor unit is equipped with automatic shutters.
During the ventilator operation the automatic shutters are
opened and let the air flow freely through the ventilator.
The automatic shutters are closed within 2 minutes at the
ventilator shut down.
FUNCTIONING OF TWINFRESH EXPERT RA1-50 SHUTTERS
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MOUNTING AND SET-UP
READ THE USER’S MANUAL PRIOR TO MOUNTING THE UNIT.
DO NOT BLOCK THE AIR DUCT OF THE INSTALLED UNIT WITH DUST ACCUMULATING
MATERIALS, SUCH AS CURTAINS, CLOTH SHUTTERS, ETC. AS IT PREVENTS AIR
CIRCULATION IN THE ROOM.
1. Prepare a round core hole in the outer wall. The hole size is shown in the figure below. While preparing a core hole it is recommended
to make preparations for layout of the power cable and other required cables.
Ø 180
Ø 7 1/16"
min 500
min 19 11/16"
min 500
min 19 11/16"
min 500
min 19 11/16"
A
A
A-A
2. Insert the air duct in the wall. For ease of installation use the polystyrene wedges included in the delivery. The air duct end must
protrude for the distance that enables installation of the outer ventilation hood (see the User’s manual for the outer ventilation hood).
0 - 3 mm
(0 - 1/8")
Fill the gaps between the air
duct and the wall with
a mounting foam
A
Polystyrene wedge
min 3 mm
Insert the air duct into the wall as shown in the picture on the
left.
Install the air duct with the minimum slope of 3 mm down from
the outer wall side.
On the outer wall side the air duct end must protrude to a
distance that enables installation of the outer ventilation hood.
Distance Ais stated in the installation instruction for the
ventilation hood.
Adjustment of the air duct length is possible before and after
its fixation in the wall.
In the first case calculate the required length before mounting
and in the second case be sure to have enough access to cut the
air duct length after its installation.
3. Stick the delivered cardboard master plate on the indoor wall using a mounting tape.
The large opening in the master plate must be axially aligned with the air duct.
For aligning of the master plate with respect to the horizon line it is recommended to use a builder’s level.
Then mark the fastening holes for installation of the supplied dowels and drill the holes to a required depth.
Route the power cable from the ventilator outside through the specially marked opening on the master plate.
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TwinFresh Expert
4. Press the side latches to detach the front part of the indoor unit from its back part.
The thermal actuator rod
must be in lower position
when installing the front
panel of the TwinFresh
Expert RW-50 unit.
5. Fix the back part of the indoor unit on the wall with the screws supplied with the mounting kit of the ventilator.
Remove the two retaining screws from the left transparent cover to enable access to the terminals.
6. Route the power cable as figured below and connect the
ventilator to power mains in compliance with the external wiring
diagram, see page 12.
Fix the power cable and the signal cables with a cable clamp.
After completion of the electrical connection re-install the
transparent cover in site.
Cable clamp Cable clamp
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