USER’S MANUAL TwinFresh Expert RA1-50 TwinFresh Expert Duo RA1-30 Single-room reversible energy recovery ventilator V139EN-01.indd 1 11.08.
TwinFresh Expert CONTENTS Safety requirements...............................................................................2 Purpose..................................................................................................4 Delivery set.............................................................................................4 Designation key......................................................................................4 Technical data......................................................
• 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.
TwinFresh Expert PURPOSE 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.
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 93 %. 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 TwinFresh Expert RA1-50 TwinFresh Expert Duo RA1-30 II III I II III 1~100-240 1~100-240 3.61 4.15 5.
TwinFresh Expert UNIT DESIGN AND OPERATING LOGIC 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.
CARTRIDGE DESIGN TwinFresh Expert RA-50 TwinFresh Expert Duo RA-50 Filter Cleans the air flowing through the ventilator of dust and foreign objects. Prevents contamination of the regenerator. Fan Generates air flow. 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.
TwinFresh Expert FUNCTIONING OF TWINFRESH EXPERT RA1-50 SHUTTERS The shutters are closed 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. The shutters are opened TWINFRESH EXPERT DUO RA1-30 OPERATION MODES The ventilator has three operation modes: Ventilation.
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.
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.
7. Insert the cartridge into the air duct as figured below. Be sure the pointer is directed upwards. Then fix the wire with the protruding clamp and connect the socket connector to the circuit board. The mark must be directed upwards. Insert the wires under the cable clamp and connect the socket connector to the circuit board. 8. Install the front part of the indoor unit. TwinFresh Expert RA1-50 TwinFresh Expert Duo RA1-30 9. Install the sectional air flow separators from the outside. 9.
TwinFresh Expert CONNECTION TO POWER MAINS AND CONTROL DISCONNECT THE UNIT FROM POWER SUPPLY PRIOR TO ANY OPERATIONS WITH THE UNIT. INSTALLATION 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 OF THE UNIT ARE GIVEN ON THE MANUFACTURER’S LABEL. ANY INTERNAL CONNECTION MODIFICATIONS ARE NOT ALLOWED AND RESULT IN WARRANTY LOSS.
WIRING DIAGRAM FOR IN SERIES CONNECTION Master N L Power input 100-240 V/50-60 Hz Slave 1 Slave N N N L L N L N N N L L L +12V +12V +12V In In In Gnd Gnd Gnd Gnd Gnd Gnd Out Out Out NO1 NO1 NO1 NO2 NO2 NO2 to the next ventilator WIRING DIAGRAM FOR IN PARALLEL CONNECTION Master Slave 1 N L Power input 100-240 V/50-60 Hz Slave N N N L L N L N N N L L L +12V +12V +12V In In In Gnd Gnd Gnd Gnd Gnd Gnd Out Out Out NO1 NO1 NO1 NO2 NO2 NO2 t
TwinFresh Expert 1 DIP-SWITCH POSITIONING Turning the ventilator off is allowed. The switch position enables deactivation of the ventilator with the button on the control panel side. Air extract. This positioning of the switch enables extract operation of the ventilator in Ventilation mode. In Regeneration mode the ventilator starts operating first in extract mode. Algorithm 1. Both fans operate in air extract mode at maximum speed. 2 Air supply.
VENTILATOR CONTROL WITH THE BUTTONS ON THE INDOOR UNIT Filter Alarm Master The speed setting engages cyclically: I-II-III-Off. All the units integrated in a single network operate according to the speed settings of the Master unit. I: permanent indicator glowing indicates operation of the unit at first speed. The indicator blinks when the first speed timer is activated. I and II: permanent glowing of the indicators I and II indicates operation of the unit at second speed.
TwinFresh Expert AIR FLOW BLOCKING FOR TWINFRESH EXPERT RA1-50 Press the front panel to close the air duct. The fan turns off automatically. The unit functionality is not changed. To open the air duct pull the front panel while holding the special recesses. The fan starts operating according to the actual speed setting. Air duct shut-off Air duct opening The front panel incorporates an operating LED indicator. During the dark time the indicator light intensity drops down.
TECHNICAL MAINTENANCE Maintenance of the ventilator means regular cleaning of the ventilator surfaces of dust and cleaning and replacement of the filters. To access the basic assembly units follow the steps: Turn off the unit using the remote control or the buttons on the indoor unit. TwinFresh Expert Duo RA1-30 1. Press the latches on the side of the indoor control unit to take off the front part. Then open the latches and remove the front part of the front panel. Remove the filters for cleaning.
TwinFresh Expert 3. Pull the cord to remove the cartridge from the air duct. TwinFresh Expert RA1-50 TwinFresh Expert Duo RA1-30 Clean the filters as they get clogged, but not less than once in three months. • After the set filter replacement periodicity (90 days) has expired the Filter indicator starts glowing. • For the TwinFresh Expert RA-50 unit the filter timer is reset once the cartridge socket is disconnected from the circuit board.
TROUBLESHOOTING POSSIBLE REASONS AND TROUBLESHOOTING Problem When switching on the ventilator the fan does not start. Circuit breaker tripping during the ventilator start-up. Low air flow. Noise, vibration. Possible reasons Troubleshooting No power supply. Make sure the power supply line is connected correctly, otherwise troubleshoot the connection error. The motor is jammed, the impeller blades are soiled. Turn the ventilator off. Troubleshoot the motor jam and the impeller clogging.
TwinFresh Expert MANUFACTURER’S WARRANTY The manufacturer hereby warrants normal operation of the unit for 24 months after the retail sale date provided the user’s observance of the transportation, storage, mounting and operation regulations. Should any malfunctions occur in the course of the unit operation through the Manufacturer’s fault during the guaranteed period of operation the user is entitled to elimination of faults by the manufacturer by means of warranty repair at the factory free of charge.
ACCEPTANCE CERTIFICATE Unit type Model Single-room reversible energy recovery ventilator TwinFresh Expert (Duo) RA _______________________ Serial Number Manufacture Date Is compliant with the technical specifications and is recognized as serviceable.
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