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Failure to observe instructions marked with a danger symbol may result in personal injury and/or damage to the unit. Scope This instruction manual is for use with EXHAUSTO VEX-type air handling units. Please refer to the product instructions regarding accessories and extra equip- ment.
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Rating plate The VEX unit rating plate shows: ● VEX unit, type (1) ● production number (2) Always have the production number ready when contacting EXHAUSTO A/S. Choose the correct documentation for the task... Find your information. Assembly and Electrical instal-...
Product information 3004510-2019-08-29 1. Product information 1.1 Designations used in these instructions 1.1.1 Simplified diagram Component Function Standard/accessory Water heating coil Standard TE-RPT Temperature sensor in return pipe from water heating coil (internal) Standard MPT1, P1 Airflow control, extract air Accessories MPT1, P2 Airflow control, supply air...
3004510-2019-08-29 1.2 Application Comfort ventilation EXHAUSTO VEX is used for comfort ventilation tasks. Operating temperature range for the unit – see section "Technical data". Prohibited uses The VEX unit is not to be used to transport solid particles or in areas where there is a risk of explosive gases.
● heating/cooling losses Condensation Condensation in the ducts may occur when the exhaust/outdoor air has high hu- midity. EXHAUSTO recommends a condensation outlet is also fitted at the lowest point in the ducts. Outdoor air intake The outdoor air intake must be dimensioned with sufficiently low airflow to prevent rain and snow being drawn into the duct system.
Product information 3004510-2019-08-29 1.4 Description 1.4.1 Construction of the VEX unit The following drawings show an overview of the construction of left and right-hand models of VEX units (shown without doors). 2,2,B 1,2,B 2,1,B 1,1,B Left 2,2,B 1,2,B 1,1,B 2,1,B Right 9/32...
Product information 3004510-2019-08-29 Pos. Part Function Outdoor air filter Filters outdoor air Bypass damper For operation with heat recovery, the bypass damper is closed so that the air passes through the crossflow heat exchanger. For bypass operation, the damper is open, and the air bypass- es the heat exchanger.
Product information 3004510-2019-08-29 1.5 Principal dimensions VEX140V, Left The following drawing gives the principal dimensions: 1050 2,1,A ½" 2,2,A 1,2,A 2,2,B 1,2,B 95** 1,1,B 2,1,B DN32 2,1,A 1,2,A 2,2,A The drawing shows all of the spigot positioning options. * Allow a distance for service in front of the unit equivalent to the unit depth. ** Allow a min.
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Product information 3004510-2019-08-29 VEX140V, Right The following drawing gives the principal dimensions: 1050 2,1,A ½" 1,2,A 2,2,A 2,2,B 1,2,B 95** 1,1,B 2,1,B 2,1,A DN32 1,2,A 2,2,A The drawing shows all of the spigot positioning options. * Allow a distance for service in front of the unit equivalent to the unit depth. ** Allow a min.
Handling 3004510-2019-08-29 2. Handling 2.1 Unpacking Supplied compo- The following components are supplied: nents ● VEX unit ● Supplied accessories (as indicated in the checklist on the front page of the in- structions). Packaging The unit is delivered on a disposable pallet and packed in clear plastic. Once the plastic has been removed, the unit must be protected against dirt and dust: ●...
Handling 3004510-2019-08-29 Method Drawing Using pallet truck or fork-lift truck: Lift the VEX unit on the disposa- ble pallet. IMPORTANT: If the disposable pallet cannot be used, the forks on the lifting equipment must be long enough to prevent damage to the bottom of the unit.
Handling 3004510-2019-08-29 2.2.2 Internal transport with reduced weight Removing the serv- To remove the service doors: ice doors ● Open both doors. ● Using a small punch or similar tool, knock the pin out of the top of the door hinges (A), and lift the doors off.
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Handling 3004510-2019-08-29 To remove the fan unit Step Action Remove the fixing screw from the sliding rail, and release the ties on the motor cable. Pull the fan unit out to the stop (two screws) on the sliding rail. Dismount the motor cable from the motor control on the sliding panel and pull it to- wards the motor through the rubber grom- mets.
After installation, check the VEX unit is completely level. 3.1.2 Installation on mounting base The EXHAUSTO mounting base enables the VEX unit to be installed correctly. The base is equipped with adjustable levelling screws, so that the air handling unit can be fitted horizontally on a surface that is not level ( +/- 20 mm per metre).
Solution with HT Use HT pipe (HT, DN32, DIN4102), if the above solution is not employed (not sup- pipe plied by EXHAUSTO). If the VEX is erected on a mounting base, this will allow sufficient free height for installing a water trap.
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Mechanical assembly 3004510-2019-08-29 Type Principle Simplified diagram Mixing Variable flow in the primary loop 1 circuit (supply) and constant flow in secondary circuit (VEX unit) Mixing Variable flow in the primary loop 2 circuit (supply) and constant flow in secondary circuit (VEX unit) a) When there is no heating requirement, valve adjust-...
I - AB Pressure difference regulator* Impurity trap* *) not EXHAUSTO delivery (refer to the technical specifications in section 7). Bleeding Following connection of water supply to the unit: ● Bleed the system thoroughly using the upper bleed screw on the water heat-...
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Mechanical assembly 3004510-2019-08-29 Exercise cycle of The circulation pump is exercised with the EXact2 control, as described here: circulation pump 1. With no heat requirement, the MVM valve runs at 0%. 2. The circulation pump will then run for a further 5 min and stop. 3.
1111) to check the unit’s operating status. 5.2 Maintenance 5.2.1 Overview of maintenance intervals The following chart details the recommended maintenance intervals for the VEX. based on normal operation. EXHAUSTO recommends maintenance is adjusted to suit the actual operating requirements. Component Procedure...
● Use of non-original filters may cause leakage in the VEX unit, impair filter function and cause an extraordinary pressure drop. ● EXHAUSTO recommends that you register the filter replacement date to en- sure filters are replaced at the correct intervals.
Maintenance, hygiene and servicing 3004510-2019-08-29 5.4.3 Cleaning the heating coils Step Action Switch off the power supply to the unit at the isolation switch before opening the doors. Vacuum clean the heating coil Check that the fins on the heating coil are not deformed. The fins are sharp.
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Maintenance, hygiene and servicing 3004510-2019-08-29 Step 1-11 Action The bypass motor must be dismounted before cleaning the heat exchanger with water, see photos: Do not activate the release button on the bypass motor while it is dismounted, as this will alter the position of the motor compared to the damper.
Technical data 3004510-2019-08-29 6. Technical data 6.1 Weight, corrosion class, temperature ranges, etc. Weight VEX total weight 190 kg Doors 2 x 13.5 kg Crossflow heat exchanger 27 kg Fan unit 2 x 15.5 kg VEX for transporting into building (without doors, heat exchanger 105 kg and fan unit) Corrosion class...
Technical data 3004510-2019-08-29 Motor damper Motor damper type LS (closing damper) LSR (closing damper, spring return) Type LS315-24 LSR315-24 Designation LSA/LSF LSFR Motor type NM24-F AF-24 Rotation time 75–150 s open: 150 s close: 16 s Ingress protection IP42 IP42 Ambient temperature -20ºC to +50ºC -30ºC to +50ºC...
Fin spacing 2.1 mm Permissible media temperature 5..0.95℃ Recommendation A precise calculation of the heating coil is recommended, to be carried out with calculation program EXselect, available on www.exhausto.dk. 6.3.1 MVM motor valve Valve 1.0 - 4.0 Test pressure 1600 kPa 1600 kPa Max.
Air flow rate Recommendation You are recommended to make a more precise calculation of the unit's capacity with the EXselect calculation program, available on the EXHAUSTO web- site. 6.5 EC Declaration of Conformity The document is located in the door of the VEX unit. It is also available on the EX- HAUSTO website by searching under the document or order number.
3004510-2019-08-29 Contact: Contact your local EXHAUSTO office service department to order a spare part. Contact information is given on the back cover of these instructions. See also the "Layout" section for an overview of the position and designation of parts in the VEX.
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