Vents DVUT 300 HB EC User Manual

Vents DVUT 300 HB EC User Manual

Single-room heat recovery air handling unit
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USER'S MANUAL
DVUT/DVUE 300 HB/HBE/HBE2 EC
DVUT 500 HB/HBE/HBE2 EC
Single-room heat recovery air handling unit

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Summary of Contents for Vents DVUT 300 HB EC

  • Page 1 USER’S MANUAL DVUT/DVUE 300 HB/HBE/HBE2 EC DVUT 500 HB/HBE/HBE2 EC Single-room heat recovery air handling unit...
  • Page 2: Table Of Contents

    DVUT/DVUE HB(E/E2) EC CONTENTS Safety requirements ..................................3 Purpose ........................................ 5 Delivery set ......................................5 Designation key .................................... 5 Technical data ....................................6 Design and operating principle ............................8 Mounting and set-up ................................10 Connection to power mains ..............................14 Technical maintenance ................................
  • Page 3 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 4: Purpose

    DVUT/DVUE HB(E/E2) EC PURPOSE The unit is designed to ensure continuous mechanical air exchange in houses, offices, hotels, cafes, conference halls, and other utility and public spaces as well as to recover the heat energy contained in the air extracted from the premises to warm up the filtered stream of intake air.
  • Page 5: Technical Data

    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 6: Design And Operating Principle

    DVUT/DVUE HB(E/E2) EC UNIT OVERALL DIMENSIONS [mm] View H +20* H2 +20* Model DVUT 300 HB EC DVUT 300 HBE EC DVUT 300 HBE2 EC 1770 1476 DVUE 300 HB EC DVUE 300 HBE EC DVUE 300 HBE2 EC DVUT 500 HB EC...
  • Page 7 The service door enables access for maintenance and service UNIT DESIGN operations. The power cables and grounding conductors must be routed Supply filter through the cable glands to the terminal block located on the top casing panel. The wiring diagram for wiring of the air handling unit is shown on the inner side of the terminal Extract filter box lid.
  • Page 8: Mounting And Set-Up

    DVUT/DVUE HB(E/E2) EC MOUNTING AND SET-UP READ THE USER'S MANUAL BEFORE INSTALLING THE UNIT. BEFORE INSTALLING ADDITIONAL EXTERNAL DEVICES, READ THE RELEVANT USER MANUALS Sufficient service access to the unit for maintenance or repair operations must be provided. The recommended minimum distances from the unit to the walls are shown below. Make sure the unit has no foreign objects inside before starting it up.
  • Page 9 The levelling feet on the bottom of the unit ensure exact alignment of the unit during mounting. For alignment of the unit loosen the nuts and adjust position of the support disc manually using a wrench. Then tighten the upper and the lower nut.
  • Page 10 DVUT/DVUE HB(E/E2) EC MOUNTING OF SENSORS FOR UNITS WITH A14 AUTOMATION (NOT INCLUDED IN THE DELIVERY SET) The humidity sensor must be attached inside of the extract air duct. Attach the sensor to the insert. Open the unit, remove the upper part of the protective casing and install the insert with the sensor on the bracket located on the wall of the exhaust duct.
  • Page 11 MOUNTING OF SENSORS FOR UNITS WITH A21 AUTOMATION (NOT INCLUDED IN THE DELIVERY SET) Brackets for installing humidity, CO and VOC sensors are located on the wall of the exhaust duct upstream of the heat exchanger. The bracket 1 is designed for installing a humidity sensor or VOC sensor. The bracket 2 is designed for installing a humidity sensor or CO sensor.
  • Page 12: Connection To Power Mains

    DVUT/DVUE HB(E/E2) EC CONNECTION TO POWER MAINS POWER OFF THE POWER SUPPLY PRIOR TO ANY OPERATIONS WITH THE UNIT. THE UNIT MUST BE CONNECTED TO POWER SUPPLY BY A QUALIFIED ELECTRICIAN. THE RATED ELECTRICAL PARAMETERS OF THE UNIT ARE GIVEN ON THE MANUFACTURER’S LABEL.
  • Page 13 EXTERNAL WIRING DIAGRAM FOR THE UNITS WITH A14 AUTOMATION PK1* 1~230 V/50(60) Hz Designation Name Type Note РК1* Contact from a fire alarm panel 2 x 0.75 mm Remove the jumper between PK terminals. CO2* CO2 sensor 2 x 0.5 mm Maximum cable length from the controller to the Р1* External control panel (A14)
  • Page 14: Technical Maintenance

    DVUT/DVUE HB(E/E2) EC TECHNICAL MAINTENANCE Maintenance operations of the unit are required 3-4 times per year. Maintenance includes 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. Clean the filters as required, but not less than 3-4 times per year.
  • Page 15 2. Heat exchanger maintenance (once per year). Some dust may accumulate on the heat exchanger even in case of regular maintenance of the filters. Regular cleaning of the heat exchanger is required to maintain high heat recovery efficiency. To clean the heat exchanger, pull it out of the unit and clean it with compressed air or a vacuum cleaner.
  • Page 16: Troubleshooting

    DVUT/DVUE HB(E/E2) EC TROUBLESHOOTING TROUBLE POSSIBLE REASONS Troubleshooting Make sure the power supply line is connected correct. No power supply. Otherwise troubleshoot a connection error. The fan(s) do(es) not get Turn the unit off. Troubleshoot the fan clogging. Clean started during activation of Motor or impeller clogging.
  • Page 17: Storage And Transportation Regulations

    STORAGE AND TRANSPORTATION REGULATIONS • Store the unit in the manufacturer’s original packaging box in a dry closed ventilated premise with temperature range from +5 ˚С to +40 ˚С and relative humidity up to 70 %. • Storage environment must not contain aggressive vapors and chemical mixtures provoking corrosion, insulation, and sealing deformation.
  • Page 18: Manufacturer's Warranty

    DVUT/DVUE HB(E/E2) EC 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 19: Certificate Of Acceptance

    CERTIFICATE OF ACCEPTANCE Unit Type Single-room heat recovery air handling unit 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 V142EN-07...

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