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5

TwinFresh Comfo RA(1)-50(-2)

The unit is designed to ensure continuous mechanical air exchange in houses, offices, hotels, cafes, conference halls and other utility and public spaces.
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 through-the-wall mounting. 
The telescopic ventilator design enables its installation in the walls with various thickness, see the table below: 

Model 

Wall thickness 

RA-50 

RA1-50

240 mm - 425 mm (9  

7

/

16

’’ - 16  

9

/

16

”)

RA-50-2 

RA1-50-2

120 mm - 300 mm (4  

3

/

4

’’ - 11  

13

/

16

’’)

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).

PURPOSE 

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 

Quantity 

Ventilator 

1 item 

Mounting kit 

1 item

Cardboard template

1 item

Remote control 

1 item

Mounting hood installation instruction 

1 item

User's manual for the ventilator 

1 item

Packing box 

1 item

DESIGNATION KEY

TwinFresh Comfo R A 1 - 50 - 2

Ventilation hood model 

_  — EH white 160

2 — EH-2 grey 160

Rated air capacity [m

3

/h] 

Front panel modification

1 — flat front panel 
Automation availability  

A — automation type 
Air duct cross section 

R — round 
Ventilator series 

Summary of Contents for RA1-50-2

Page 1: ...USER S MANUAL Single room reversible energy regeneration ventilator TwinFresh Comfo RA 50 TwinFresh Comfo RA1 50 TwinFresh Comfo RA 50 2 TwinFresh Comfo RA1 50 2...

Page 2: ...manual must be turned over to the receiving operator Symbol legend WARNING DO NOT The user s manual consisting of the technical details operating instructions and technical specification applies to th...

Page 3: ...the unit to power mains Do not touch the unit controls with wet hands Do not carry out the installation and maintenance operations with wet hands Do not allow children to operate the unit Do not stor...

Page 4: ...ed in the user s manual Do not operate the unit in aggressive or explosive environments Do not wash the unit with water Protect the electric parts of the unit against ingress of water Disconnect the u...

Page 5: ...rous materials coarse dust soot and oil particles or environments favourable for the formation of hazardous substances toxic substances dust pathogenic germs PURPOSE THE UNIT MAY NOT BE OPERATED BY CH...

Page 6: ...I Supply Voltage 50 60 Hz V 1 100 230 Power consumption W 4 5 5 0 7 0 Total current consumption A 0 02 0 03 0 04 Air capacity m3 h CFM 21 12 32 19 50 30 RPM min 1 610 800 1450 Noise level 1 m dB A Son...

Page 7: ...part of the telescopic air duct Outer ventilation hood Prevents direct ingress of water and foreign objects into the ventilator Filter Cleans the air owing through the venti lator of dust and foreign...

Page 8: ...are opened In Regeneration mode the ventilator operates in two cycles 70 seconds each Cycle I Warm stale air is extracted from the room As it flows through the regenerator it heats and moisturizes th...

Page 9: ...A A A A 2 Insert the air duct in the wall using the supplied polystyrene wedges and fix it with mounting foam The telescopic air duct end protruding part must enable installation of the outer ventilat...

Page 10: ...g plate from the ventilation unit by disconnecting the two connectors Re assemble the mounting plate in the reverse order Install the cables with care 4 Install the mounting plate unit using the suppl...

Page 11: ...Air direction in the Ventilation mode is determined by position of the jumper on the control board The control board of the ventilator is located inside of the ventilation unit DISCONNECT THE UNIT FR...

Page 12: ...use a power cable with the minimum wire cross section 0 5 mm2 and a control cable with the minimum wire cross section 0 25 mm2 The cables are not included in the delivery set The cable must be rated...

Page 13: ...2 x 0 25 mm2 Connect the ventilators no 12 20 to the ventilator no 11 in the same way as the ventilators no 1 10 All the connected ventilators are controlled with the ventilator no 1 CONNECTION OF MOR...

Page 14: ...jumper position The fan is off The ventilator does not operate The shutters are closed Regeneration mode In this mode the ventilator switches between supply and extract mode each 70 seconds with heat...

Page 15: ...setting or supplied at a selected speed All the ventilators connected in series ventilators operate depending on position of CN7 jumper Regeneration mode The ventilator operates 70 seconds in Supply...

Page 16: ...ce 3 4 times per year 1 Remove the air flow rectifier 2 Remove the filter in front of the regenerator 3 Pulltheregeneratorcordtoremovetheregenerator from the air duct 4 Be careful while pulling the re...

Page 17: ...tall the holder with a new battery in site CR2025 3V CR2025 3V TROUBLESHOOTING Fault Possible reasons Remedy The fan does not start running during start up of the ventilator No power supply Make sure...

Page 18: ...IAL OR SPECIAL DAMAGES ARISING OUT OF OR IN CONNECTION WITH PRODUCT USE OR PERFORMANCE Some states do not allow the exclusion or limitations of incidental or consequential damages so the above limitat...

Page 19: ...umber E mail Purchase Date Seller s Stamp Seller s Stamp Installation Company Stamp This is to certify acceptance of the complete ventilator delivery with the user s manual The warranty terms are ackn...

Page 20: ...V US123 TFC RB RA EN 03...

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