Exhausto VEX4000 Maintenance Instructions Manual
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Exhausto VEX4000 Maintenance Instructions Manual

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3005236-2015-05-19
VEX4000
Maintenance Instructions
EXHAUSTO A/S
Odensevej 76
DK-5550 Langeskov
Tel.: +45 65 66 12 34
Fax: +45 65 66 11 10
exhausto@exhausto.dk
www.exhausto.com
VEX4000_Maintenance Instructions
Original instructions

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Summary of Contents for Exhausto VEX4000

  • Page 1 VEX4000_Maintenance Instructions 3005236-2015-05-19 VEX4000 Maintenance Instructions Original instructions EXHAUSTO A/S Tel.: +45 65 66 12 34 Odensevej 76 Fax: +45 65 66 11 10 DK-5550 Langeskov exhausto@exhausto.dk www.exhausto.com...

  • Page 2: Table Of Contents

    3005236-2015-05-19 1. After commissioning 1.1. After 2-3 weeks of operation ................3 1.1.1. Check and if required, shorten the rotor belt's length (applies only to VEX4070 - 4100)........................3 1.1.2. Rotor section - check for shavings in the bottom..........4 2. Maintenance 2.1. General information about maintenance.............5 2.2.

  • Page 3: After Commissioning

    After commissioning 3005236-2015-05-19 1.After commissioning 1.1 After 2-3 weeks of operation 1.1.1 Check and if required, shorten the rotor belt's length (applies only to VEX4070 - 4100) Step Action After 2-3 weeks of operation: ● Check the distance X from the drive shaft on the rotor belt pulley to the bottom of the section and compare with the following dimensions: VEX4070: 175 mm ±15 mm VEX4080: 195 mm ±15 mm...

  • Page 4: Rotor Section - Check For Shavings In The Bottom

    After commissioning 3005236-2015-05-19 1.1.2 Rotor section - check for shavings in the bottom Step Action After 2-3 weeks of operation: ● Check for shavings in the bottom of the rotor section and if so, remove them by vacuum cleaning. Shavings can come from the belt or from the manufacture of the rotor.

  • Page 5: Maintenance

    2.Maintenance 2.1 General information about maintenance It is important that the VEX4000 air handling unit is regularly maintained, so that its output is optimal at all times. This chapter describes how and when recommended maintenance should be carried out, which components should be checked and how to replace certain parts, etc.

  • Page 6: Maintenance Schedule

    ● Eurovent certification is only valid if original filters are used. ● Use of non-original filters may cause leakage in the VEX and impair filter func- tion. ● EXHAUSTO recommends that you register the filter replacement date to ensure filters are replaced at the correct intervals. 6/20...

  • Page 7: Replacement Of Filters

    Maintenance 3005236-2015-05-19 2.2.1 Replacement of filters Step Action Illustration ● Switch off the power to the unit at the isolation switch before opening the doors ● The filters are kept in po- sition by a rail system, which is closed using two handles, one for the top and one for the bot- tom.
  • Page 8 Maintenance 3005236-2015-05-19 Step Action (1-11) Loosen the flexible connection. Pull the fan out and provide it with appropriate support. Remove the three screws (pos. 1) that hold the hub cover and detach the cover (pos. 2). 6 7a 1. Three screws - 2. Hub cover - 3. Centre screw - 4. Centre washer - 5. Hub cores - 6.

  • Page 9: Fitting The Motor (Zerax® Fan)

    Fit the flexible connection. Secure the fan unit using screws in the supports. Close the door to the fan section. Close the door and lock using the square key. Before starting up the fan, see the assembly and installation instructions for VEX4000. 9/20...

  • Page 10: Removal The Plenum Fan

    Maintenance 3005236-2015-05-19 2.2.4 Removal the plenum fan Step Action (1-11) ● Switch off the power to the air handling unit at the isolation switch before opening the doors. Wait for a minimum of two minutes before opening the doors, because the fan has approximately two minutes of run-on time. ●...
  • Page 11 Maintenance 3005236-2015-05-19 Step Action (1-11) ● Pull the fan unit forward on the rail system. ● Open the motor control to the fan motor and remove the cables shown. 11/20...
  • Page 12 Maintenance 3005236-2015-05-19 Step Action (1-11) ● Pull the fan out and provide it with appropriate support. VEX size (3 x 230 V) Weight [kg] (3 x 400 V) Weight [kg] VEX4010-2 27.5 27.5 VEX4020-1 28.5 28.5 VEX4020-2 31.0 31.0 VEX4030-1 43.4 43.4 VEX4030-2...

  • Page 13: Fitting The Plenum Fan

    Maintenance 3005236-2015-05-19 2.2.5 Fitting the plenum fan Step Action (1-9) Position the fan unit on the rail system in the bottom of the section. Fit the cables in the motor control. Push and centre the fan unit into position in front of the outlet panel. Re-connect and re-secure the cables using strips.

  • Page 14: Cleaning

    Close the door to the fan section. Close the door and lock using the square key. Before starting up the fan, see the assembly and installation instructions for VEX4000. 2.3 Cleaning Regularly carry out maintenance to ensure that the air handling unit functions and per- forms in accordance with the specifications.

  • Page 15: Damper And Damper Motor

    Maintenance 3005236-2015-05-19 2.3.2 Damper and damper motor Step Action Switch off the power to the air handling unit at the isolation switch before opening the doors. Clean the dampers and damper motor using a vacuum cleaner. 2.3.3 Rotary heat exchanger section (ER) Step Action (1-6)

  • Page 16: Crossflow Heat Exchanger (Ex)

    Maintenance 3005236-2015-05-19 2.3.4 Crossflow heat exchanger (EX) Step (1-5) Action Switch off the power to the air handling unit at the isolation switch before opening the doors. Cover the plug and socket connections in the section. Check that the condensation tray's drain functions. Clean the heat exchanger by flushing with hot water or by pressure hosing.

  • Page 17: Condenser (Dx, Dxc)

    Maintenance 3005236-2015-05-19 2.3.8 Condenser (DX, DXC) Step Action Switch off the power to the air handling unit at the isolation switch before opening the doors in the section. Cover the plug and socket connections in the section. Check that the condensation tray's drain functions. Clean the coil by flushing with hot water or by pressure hosing.

  • Page 18: Especially For Outdoor Units

    Maintenance 3005236-2015-05-19 2.3.11 Especially for outdoor units. Step Action Check the roof is complete. Repair any damage. Check that the gutters are not blocked. 18/20...
  • Page 19 3005236-2015-05-19 19/20...

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