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SINGLE-ROOM AIR HANDLING
UNIT WITH HEAT RECOVERY
KOMFORT Roto EC S 281 L
KOMFORT Roto EC S 281 R
KOMFORT Roto EC S 401 L
KOMFORT Roto EC S 401 R
KOMFORT Roto EC SE 281 L
KOMFORT Roto EC SE 281 R
KOMFORT Roto EC SE 401 L
KOMFORT Roto EC SE 401 R
EN
USER'S MANUAL
KOMFORT Roto EC S 281-E L
KOMFORT Roto EC S 281-E R
KOMFORT Roto EC S 401-E L
KOMFORT Roto EC S 401-E R
KOMFORT Roto EC SE 281-E L
KOMFORT Roto EC SE 281-E R
KOMFORT Roto EC SE 401-E L
KOMFORT Roto EC SE 401-E R
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Summary of Contents for BLAUBERG KOMFORT Roto EC S 281 L
- Page 1 SINGLE-ROOM AIR HANDLING UNIT WITH HEAT RECOVERY KOMFORT Roto EC S 281 L KOMFORT Roto EC S 281-E L KOMFORT Roto EC S 281 R KOMFORT Roto EC S 281-E R KOMFORT Roto EC S 401 L KOMFORT Roto EC S 401-E L...
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Page 2: Table Of Contents
KOMFORT Roto EC S(E) 281/401(-E) www.blaubergventilatoren.de CONTENTS Safety requirements ..................................3 Purpose ....................................... 5 Delivery set ......................................5 Designation key ....................................5 Technical data ....................................6 Unit design and operating principle ..........................8 Installation and set-up................................9 Connection to power mains ..............................13 Maintenance .................................... -
Page 3: Safety Requirements
KOMFORT Roto EC S(E) 281/401(-E) www.blaubergventilatoren.de SAFETY REQUIREMENTS This unit is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the unit by a person responsible for their safety. Children should be supervised to ensure that they do not play with the unit. - Page 4 KOMFORT Roto EC S(E) 281/401(-E) www.blaubergventilatoren.de All operations described in this manual must be performed by qualified personnel only, properly trained and qualified to install, make electrical connections and maintain ventilation units. Do not attempt to install the product, connect it to the mains, or perform maintenance yourself. This is unsafe and impossible without special knowledge.
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Page 5: Purpose
KOMFORT Roto EC S(E) 281/401(-E) www.blaubergventilatoren.de PURPOSE The unit is designed to ensure continuous mechanical air exchange in houses, offices, hotels, cafés, conference halls, and other utility and public spaces to recover the heat energy contained in the air extracted from the premises and warm up the filtered stream of supply air, as well as for exhaust ventilation in kitchens, commercial bakeries etc. -
Page 6: Technical Data
KOMFORT Roto EC S(E) 281/401(-E) www.blaubergventilatoren.de TECHNICAL DATA The unit is designed for indoor application with the ambient temperature ranging from +1 °C up to +40 °C and relative humidity up to 60 % without condensation. In cold, damp rooms, there is a possibility of freezing or condensation inside and outside the casing. In order to prevent condensation on the internal walls of the unit, it is necessary that the surface temperature of the casing is 2-3 °C above the dew point temperature of the transported air. - Page 7 KOMFORT Roto EC S(E) 281/401(-E) www.blaubergventilatoren.de 16x4 160x4...
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Page 8: Design And Operating Principle
KOMFORT Roto EC S(E) 281/401(-E) www.blaubergventilatoren.de DESIGN AND OPERATING PRINCIPLE The unit operation is as follows: warm, stale extract air flows through the air ducts into the unit and is filtered. Then the air is moved through the rotary heat exchanger and is exhausted outside through the air ducts with the extract fan. Cold fresh intake air flows through the air ducts into the unit’s supply filter, where it is filtered. -
Page 9: Mounting And Set-Up
KOMFORT Roto EC S(E) 281/401(-E) www.blaubergventilatoren.de MOUNTING AND SET-UP READ THE USER’S MANUAL BEFORE INSTALLING THE UNIT THE UNIT MUST BE MOUNTED BY A QUALIFIED EXPERT ONLY, PROPERLY TRAINED AND HAVING THE REQUIRED TOOLS AND MATERIALS. The units are available in left-hand and right-hand design. Choosing the right design can improve the ease of installation, shorten the length of the ducts and reduce the number of air duct bends. - Page 10 KOMFORT Roto EC S(E) 281/401(-E) www.blaubergventilatoren.de The air ducts must be slipped over the unit flanges until tight. Flexible air ducts must be rigidly fixed with a metal worm clamp. If the air ducts are too short or not connected, protect the unit parts from ingress of foreign objects. To prevent uncontrollable access to the fan the spigots may be covered with a protecting grille or other protecting device mesh width not more than 12.5 mm.
- Page 11 KOMFORT Roto EC S(E) 281/401(-E) www.blaubergventilatoren.de INSTALLATION AND CONNECTION OF THE FS2 HUMIDITY SENSOR AND CO2 SENSOR If the humidity and CO2 sensors are not included in the delivery set, they can be ordered separately. The sensors must be installed before installing the unit.
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Page 12: Connection To Power Mains
KOMFORT Roto EC S(E) 281/401(-E) www.blaubergventilatoren.de CONNECTION TO POWER MAINS ANY TAMPERING WITH THE INTERNAL CONNECTIONS IS PROHIBITED AND WILL VOID THE WARRANTY. The unit is designed for connection to power mains with the parameters specified in the technical data table. The connection must be made using durable, insulated and heat-resistant conductors (cables, wires). - Page 13 KOMFORT Roto EC S(E) 281/401(-E) www.blaubergventilatoren.de EXTERNAL WIRING DIAGRAM RS-485 C NC C NO C NO B +24V 50 Hz SM2* SM1* 230 V PK1* Boost* Designation Name Type Wire Note SM1* Supply damper actuator 2 x 0.75 3A, 30DC/~250AC SM2* Exhaust damper actuator 2 x 0.75...
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Page 14: Maintenance
KOMFORT Roto EC S(E) 281/401(-E) www.blaubergventilatoren.de TECHNICAL MAINTENANCE DISCONNECT THE UNIT FROM POWER MAINS BEFORE ANY MAINTENANCE OPERATIONS! Maintenance operations of the unit are required 3-4 times per year. They include general cleaning of the unit and the following operations: 1. - Page 15 KOMFORT Roto EC S(E) 281/401(-E) www.blaubergventilatoren.de 3. Fan maintenance (once per year). Even in case of regular maintenance of the filters and the heat exchanger, some dust may accumulate inside the fans and reduce the fan performance and supply air flow. Clean the fans with a soft brush or cloth.
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Page 16: Troubleshooting
KOMFORT Roto EC S(E) 281/401(-E) www.blaubergventilatoren.de TROUBLESHOOTING Possible faults and troubleshooting Problem Possible reasons Handling method Make sure the power supply line is connected No power supply. correctly, otherwise troubleshoot the connection error. The fan(s) does (do) not start when the unit is on. The motor is jammed, the impeller blades are Turn the unit off. -
Page 17: Manufacturer's Warranty
KOMFORT Roto EC S(E) 281/401(-E) www.blaubergventilatoren.de MANUFACTURER’S WARRANTY The product is in compliance with EU norms and standards on low voltage guidelines and electromagnetic compatibility. We hereby declare that the product complies with the provisions of Electromagnetic Compatibility (EMC) Directive 2014/30/EU of the European Parliament and of the Council, Low Voltage Directive (LVD) 2014/35/EU of the European Parliament and of the Council and CE-marking Council Directive 93/68/EEC. - Page 18 KOMFORT Roto EC S(E) 281/401(-E) www.blaubergventilatoren.de...
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Page 19: Certificate Of Acceptance
KOMFORT Roto EC S(E) 281/401(-E) www.blaubergventilatoren.de CERTIFICATE OF ACCEPTANCE Unit Type Single-room air handling unit with heat recovery Model Serial Number Manufacture Date Quality Inspector’s Stamp SELLER INFORMATION Seller Address Phone Number E-mail Purchase Date This is to certify acceptance of the complete unit delivery with the user’s manual. The warranty terms are acknowledged and accepted. - Page 20 www.blaubergventilatoren.de B287EN-01...
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