USER’S MANUAL TwinFresh Comfo RA-50 TwinFresh Comfo RA-50-2 TwinFresh Comfo RA1-50 TwinFresh Comfo RA1-50-2 SINGLE-ROOM REVERSIBLE ENERGY REGENERATION VENTILATOR
CONTENTS Safety requirements Introduction Use Delivery set Designation key Main technical parameters Design and operating logic Mounting and set-up Connection to power mains Ventilator control Maintenance Troubleshooting Storage and transportation rules Manufacturer's warranty Acceptance certificate Seller's information Mounting Certificate Warranty Card 3 5 5 5 5 6 7 8 12 14 16 18 18 19 20 20 20 21
TwinFresh Comfo 3 SAFETY REQUIREMENTS • • • • • • Read the user’s manual carefully prior to the operation and installation of the single-room reversible energy regeneration ventilator, hereinafter the ventilator. Installation and operation of the ventilator shall be performed in accordance with the present user’s manual as well as the provisions of all the applicable local and national construction, electrical and technical codes and standards.
VENTILATOR OPERATING SAFETY PRECAUTIONS Do not touch the controller or the remote control with wet hands. Do not carry out the ventilator maintenance with wet hands. Do not wash the ventilator with water. Protect the ventilator electric parts from water ingress. ON Do not block the air duct when the ventilator is on. Disconnect the ventilator from power supply before maintenance. OFF Do not let children operate the ventilator. Do not damage the power cable while operating the ventilator.
TwinFresh Comfo 5 INTRODUCTION This user’s manual includes technical description, operation, installation and mounting guidelines, technical data for the energy regeneration ventilator TwinFresh Comfo RA-50, hereinafter the ventilator. USE The ventilator is designed to arrange permanent controllable air exchange in flats, cottages, hotels, cafes and other domestic and public premises.
MAIN TECHNICAL PARAMETERS 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 classified 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 differ from those ones described in this manual.
TwinFresh Comfo 7 DESIGN AND OPERATING LOGIC The ventilator consists of the telescopic air duct with adjustable length regulated by position of the inner air duct inside the outer air duct, the ventilation unit and the ventilation hood. Two filters and the ceramic regenerator are located inside the inner duct of the telescope. The filters are designed to purify supply air and prevent foreign object ingress to the regenerator and the fan.
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 the regenerator, transferring up to 91% 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 flows through the ceramic regenerator and absorbs accumulated moisture and heat up to the room temperature.
TwinFresh Comfo 9 VENTILATOR MOUNTING 2. After preparing a through hole 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 profile is shown in the drawing on the right. max 200 mm(max 7 7⁄8") While mounting several connected in series ventilators provide a recess for the cable layout during the hole preparation to enable series connection of several ventilators. max 90 mm (max 3 9⁄16") R100 (R4") 3.
VENTILATOR MOUNTING 5. Install the filter, the ceramic regenerator, another filter and the air flow rectifier in the consecutive order inside the telescopic air duct. 6. Install the ventilation unit on the mounting plate. The ventilation unit is fixed with magnets. VENTILATION HOOD MOUNTING TwinFresh Comfo RA-50 TwinFresh Comfo RA1-50 TwinFresh Comfo RA-50-2 TwinFresh Comfo RA1-50-2 1. Mark the fastening holes for the outer ventilation hood and drill holes for the dowel 6x40.
TwinFresh Comfo 11 VENTILATION HOOD MOUNTING 2. Insert the dowels 6x40 (included into the delivery set) into the holes. 3. Disassemble the outer ventilation hood to enable access to the fastening holes. 1 Take off the upper part of the outer ventilation hood. Remove 5 screws and take off the upper part of the ventilation hood. 4. Fix the back part of the ventilation hood on the wall with 4x40 screws from the delivery set. 5. Mount the upper part of the ventilation hood.
CONNECTION TO POWER MAINS DISCONNECT THE VENTILATOR FROM POWER MAINS PRIOR TO ANY ELECTRIC INSTALLATION OPERATIONS. CONNECT THE VENTILATOR TO A CORRECT INSTALLED SOCKET WITH A GROUNDED TERMINAL. ANY INTERNAL CONNECTION MODIFICATIONS ARE NOT ALLOWED AND RESULT IN WARRANTY LOSS. The ventilator is rated for connection to single-phase ac 1~100-230 V / 50-60 Hz power mains. For wireworks facilitation, the ventilator is supplied with a pre-wired power cord and a plug.
TwinFresh Comfo 13 D N L G Output In case of connection above 10 ventilators power is supplied to the 11th ventilator (L and N terminals) not from the previous ventilator but from power mains. The control signals G and D from the 10th ventilator are transferred through the cable 2 x 0.5 mm2. The ventilators no. 12…20 are connected 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.
VENTILATOR CONTROL The ventilator is operated with a remote controller or the buttons on the ventilator casing. The operation buttons on the ventilator casing have limited functionality and include activating the second and third speed and setting three of four ventilation modes. The remote controller has wider control capabilities. CONTROL BUTTONS ON THE VENTILATOR CASING Third speed The ventilator operates with maximum air flow. The fan is OFF The ventilator does not operate. The shutters are closed.
TwinFresh Comfo 15 OPERATION WITH THE CONTROL BUTTONS ON THE VENTILATOR CASING 1. Turning the ventilator ON. Setting operation speed. second speed. third speed. 2. Turning the ventilator OFF. Turning the ventilator OFF. REMOTE CONTROL Set the speed switch to position and the ventilation mode switch to position to enable remote control of the ventilator. 1. Turning ventilator ON/OFF. ON/OFF 2.
MAINTENANCE DISCONNECT THE VENTILATOR FROM POWER SUPPLY PRIOR TO ANY MAINTENANCE OPERATIONS. Maintenance of the ventilator means regular cleaning of the ventilator surfaces of dust and cleaning or replacement of the filters. MAINTENANCE 1. Fan maintenance (once per year). Pull the ventilator to remove. Clean the impeller blades. To remove dust use a soft brush, cloth or a vacuum cleaner. Do not use water, abrasive detergents, solvents, sharp objects. The impeller blades must be cleaned once in year.
TwinFresh Comfo 17 2. Regenerator and filter maintenance (4 times per year). Remove the air flow rectifier. Remove the filter in front of the regenerator. Pull the regenerator cord to remove the regenerator from the air duct. Be careful while pulling the regenerator to avoid its damage. Remove the filter after the regenerator. Clean the filter as often as it gets soiled, but at least 3-4 times a year.
TROUBLESHOOTING Possible faults and troubleshooting Fault The fan does not start up during the ventilator start-up. Automatic switch tripping following the ventilator turning on. Low air flow. The ventilator generates sound signals. High noise, vibration. Possible reasons Fault handling No power supply. Make sure that the ventilator is properly connected to the power mains and make any corrections, if necessary. Motor is jammed, the impeller are clogged. Turn the ventilator off.
TwinFresh Comfo 19 MANUFACTURER’S WARRANTY The manufacturer hereby warrants normal operation of the ventilator over the period of 24 months from the retail sale date provided the user’s observance of the transportation, storage, installation and operation regulations. Should any malfunctions occur during the ventilator operation through the manufacturer’s fault during the warranty period the user is entitled to elimination of faults by means of warranty repair performed by the manufacturer.
ACCEPTANCE CERTIFICATE Product Type The single-room reversible energy regeneration ventilator Model TwinFresh Comfo RA __-50 Serial Number Manufacturing Date Is recognized as serviceable.
TwinFresh Comfo 21 WARRANTY CARD Product type Model Single-room reversible energy regeneration ventilator TwinFresh Comfo RA __-50 Serial number Manufacturing date Sales date Warranty period Sales company Seller’s seal ______________________________________________________________________________________________________ ______________________________________________________________________________________________________ __________________________________________________________________________________
V91-2EN-03 2013
