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Vents VUTR 281 V EC L A21 User Manual

Single-room air handling unit with heat recovery
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USER'S MANUAL
VUTR 281 V EC L A21
VUTR 281 V EC R A21
VUTR 401 V EC L A21
VUTR 401 V EC R A21
VUTR 281 VE EC L A21
VUTR 281 VE EC R A21
Single-room air handling unit with heat recovery
VUTR 401 VE EC L A21
VUTR 401 VE EC R A21
VUER 281 V EC L A21
VUER 281 V EC R A21
VUER 401 V EC L A21
VUER 401 V EC R A21
VUER 281 VE EC L A21
VUER 281 VE EC R A21
VUER 401 VE EC L A21
VUER 401 VE EC R A21

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Summary of Contents for Vents VUTR 281 V EC L A21

  • Page 1 USER’S MANUAL VUTR 281 V EC L A21 VUTR 401 VE EC L A21 VUER 281 VE EC L A21 VUTR 281 V EC R A21 VUTR 401 VE EC R A21 VUER 281 VE EC R A21 VUTR 401 V EC L A21...

  • Page 2: Table Of Contents

    VUTR (VUER) 281/401 V(E) EC 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

    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 Do not use the unit in a hazardous or explosive environment containing spirits, gasoline, insecticides, etc. Do not close or block the intake or extract vents in order to ensure the efficient air flow. Do not sit on the unit and do not put objects on it.

  • Page 5: Purpose

    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

    VUTR (VUER) 281/401 V(E) EC 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 16x4 160x4 www.ventilation-system.com...

  • Page 8: Design And Operating Principle

    VUTR (VUER) 281/401 V(E) EC 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

    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: Service Panel

    VUTR (VUER) 281/401 V(E) EC 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: Wall Mounting

    INSTALLATION AND CONNECTION OF THE HV2 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. The sensors installation sequence: •...

  • Page 12: Connection To Power Mains

    VUTR (VUER) 281/401 V(E) EC 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 EXTERNAL WIRING DIAGRAM RS-485 C NC C NO C NO B +24V 50 Hz SM1* SM2* 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 3A, 30DC/~250AC PK1* Fire alarm control panel...

  • Page 14: Maintenance

    VUTR (VUER) 281/401 V(E) EC 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. Filter maintenance. Clogged filters increase air resistance in the system and reduce supply air volume.
  • Page 15 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. Do not use water, aggressive solvents, or sharp objects as they may damage the impeller.

  • Page 16: Troubleshooting

    VUTR (VUER) 281/401 V(E) EC 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

    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 VUTR (VUER) 281/401 V(E) EC www.ventilation-system.com...

  • Page 19: Certificate Of Acceptance

    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 V287EN-01...

This manual is also suitable for:

Vutr 281 v ec r a21Vutr 401 v ec l a21Vutr 401 v ec r a21Vutr 281 ve ec l a21Vutr 281 ve ec r a21Vutr 401 ve ec l a21 ... Show all

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