Exhausto VEX350HX Manual

Counter flow heat exchanger, for 3rd party control system

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3004084-2017-12-20
VEX350HX
counter flow heat exchanger, for 3rd party control
system
Product information........................................ Chapter 1 + 6
Mechanical assembly..................................... Chapter 2 + 3
Electrical installation.......................................Chapter 4
Maintenance...................................................Chapter 5
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.dk
VEX350HX
Unit supplied with (factory fitted):
FB bag filter
FP compact filter
OD - roof for outdoor
Mounting base (unassembled)
Frequency converter
MLON
The following accessories are supplied
separately:
HCW external heating coil (water)
HCE external heating coil,
CCW cold water coil
Closing damper, LS500 (LSA exhaust air)
Closing damper, LS500, (LSF outdoor air)
Closing damper, LSR500, with
spring-return (LSAR exhaust air)
closing damper, LSR500, with
spring-return ( LSFR outdoor air)
Serial no.:
Prod. order no.:
Sales order no.:
Original instructions
kW

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Summary of Contents for Exhausto VEX350HX

  • Page 1 VEX350HX 3004084-2017-12-20 VEX350HX counter flow heat exchanger, for 3rd party control system Unit supplied with (factory fitted): FB bag filter FP compact filter OD - roof for outdoor Mounting base (unassembled) Frequency converter MLON The following accessories are supplied separately:...
  • Page 2: Table Of Contents

    3004084-2017-12-20 1. Product information 1.1. Designations used in these instructions.............6 1.1.1. Model overview....................6 1.1.2. Terms used in these instructions..............7 1.2. Application......................7 1.3. Location requirements..................8 1.3.1. Space requirements..................8 1.3.2. Requirements for underlying surface............... 8 1.3.3. Outlet.......................8 1.3.4. Requirements for duct system................. 9 1.4.
  • Page 3 3004084-2017-12-20 6.4.2. Capacity diagram, ventilation with bypass operation........38 6.5. Ordering spare parts................... 38 3/40...
  • Page 4 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.
  • Page 5 3004084-2017-12-20 Information plate The VEX unit information plate shows: ● VEX model type (1) ● Unit production no. (2) Have the production number ready at all times when contacting EXHAUSTO A/S. 5/40...
  • Page 6: Product Information

    Product information 3004084-2017-12-20 1. Product information 1.1 Designations used in these instructions 1.1.1 Model overview Elements Explanation Compact filter Bag filter 1,1,A or B Extract air spigot 1,2,A Exhaust air spigot 2,1,A Outdoor air spigot 2,2,A or B Supply air spigot Air direction, extract air Air direction, supply air The sketch shows compact filters...
  • Page 7: Terms Used In These Instructions

    Bypass damper with motor (outdoor air - supply air) 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.
  • Page 8: Location Requirements

    Product information 3004084-2017-12-20 1.3 Location requirements Positioning The air handling unit is designed for indoor fitting. The air handling unit can be or- dered for outdoor installation (accessory Outdoor, OD). 1.3.1 Space requirements The drawing below indicates how much space is required to open the side-mounted doors for servicing, replacing filters, cleaning, etc.
  • Page 9: Requirements For Duct System

    ● 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. No duct connection If one or more of the spigots is not connected to a duct: Fit a protective net to the spigots with a maximum mesh width of 20 1.4 Description...
  • Page 10 Product information 3004084-2017-12-20 Layout drawing, Right model 1,1,A 2,2,A 1,2,A 2,1,A Pos. Part Function Spigot 1,1,A Extract air spigot The spigot can also be posi- tioned on the top of the unit (1,1,B). Does not apply to units designed for outdoor fitting Closing damper LS Closing damper, exhaust air, LSA (accesso- ry).
  • Page 11: Main Aim

    Product information 3004084-2017-12-20 Cabinet The inside and outside of the cabinet is made of Aluzinc® The cabinet is insulated with 50 mm mineral wool. Fans The unit contains two centrifugal fans for exhaust air and supply air. Counter flow heat The unit's counterflow heat exchangers are made of aluminium and are highly effi- exchangers cient.
  • Page 12 Product information 3004084-2017-12-20 VEX350H, Left 2632 2,2,B 1,1,B 1,1,A 2,2,A 1,2,A 2,1,A 1137 DN32 1106 1,1,A 2,2,A 1,2,A 2,1,A 1) Allow for space in front of the VEX unit, so the doors can be opened 2) Allow for free height over the VEX unit, so the connection box can be serviced See the section on "Space requirements".
  • Page 13 Product information 3004084-2017-12-20 VEX350H, Right 2632 2,2,B 1,1,B 1,1,A 2,2,A 1,2,A 2,1,A 1137 DN32 1106 1,1,A 2,2,A 1,2,A 2,1,A 1) Allow for space in front of the VEX unit, so the doors can be opened 2) Allow for free height over the VEX unit, so the connection box can be serviced See the section on "Space requirements".
  • Page 14: Handling

    Handling 3004084-2017-12-20 2. Handling 2.1 Unpacking Supplied compo- The following components are supplied: nents ● VEX unit with associated base. ● Supplied accessories (as indicated in the checklist on the front page of the in- structions) Packaging The unit is delivered in three sections on separate disposable pallets; packed in cardboard and clear plastic.
  • Page 15: Internal Transport With Reduced Weight

    Handling 3004084-2017-12-20 The VEX unit is shown with compact filters. Width The list below shows the unit’s dimensions, and is intended to indicate how large an opening has to be for the unit to pass through: If the opening width is Then Less than 900 mm The unit will not pass through...
  • Page 16 Handling 3004084-2017-12-20 Section Subcomponents Weight Base, 1 x 75 kg Total weight VEX350 unit 635 kg Removing the serv- To remove the service doors: ice doors Detail A Detail B How to remove the doors (2 in no.) to the fan sections: ●...
  • Page 17 Handling 3004084-2017-12-20 To remove the fan unit DETAIL A Step Action Remove the fixing screws (1) on the sliding rail (out towards the operat- ing side) Cut the cable ties holding the motor cable and the cable ties holding the measuring hose Pull the fan unit out to the end-stop (a screw on each rail acts as a stop) Remove the supply cable and the control cable in the motor control.
  • Page 18: Mechanical Assembly

    Mechanical assembly 3004084-2017-12-20 3. Mechanical assembly 3.1 Installing the unit 3.1.1 Assembly instructions Step 1, assemble the base Step 2, push the sections onto the base Step 3–4, tighten the VEX together Base The unit must be assembled on the base – to ensure it is tight- ened correctly.
  • Page 19: Step 1-4

    Mechanical assembly 3004084-2017-12-20 3.1.2 Step 1–4 Step 1, Base: Assemble the base as shown in the drawing below. Base assembly Drawing The base consists of the following parts: M10x35 M10x25 19/40...
  • Page 20 Mechanical assembly 3004084-2017-12-20 Base assembly Drawing The following tools are re- quired: 2x17mm 2x30mm Assemble the base levelling bolts, by tapping the threa- ded bar securely into the foot. Screw a nut onto the threa- ded bar and put a washer Lay the base parts on the floor as shown in the illus- tration.
  • Page 21 Mechanical assembly 3004084-2017-12-20 Base assembly Drawing Assemble the long pieces: ● Front long piece: Join M10x25 A, B and C with nuts and bolts. ● Rear long piece: Join A, B, C and G with bolts and nuts. Fit the two small tension fit- tings (F) on each side of the short members (G) and se- cure firmly using nuts and...
  • Page 22 Mechanical assembly 3004084-2017-12-20 Base assembly Drawing Screw the last long piece on using nuts and bolts. M10x25 Screw the levelling bolts on the base with M20 nuts and washers Turn the base with legs down and place it so that the tension fittings face away from the operating side...
  • Page 23 Mechanical assembly 3004084-2017-12-20 Step 2, VEX sec- Manoeuvre the sections onto the base by pushing them directly from the pallet on- tions to the base. 1. Firstly, push a fan section onto the base. 2. Secondly, push the exchanger section onto the base 3.
  • Page 24: Condensation Drain

    Mechanical assembly 3004084-2017-12-20 Step 4, Smooth To ensure joints are sealed at the condensation tray, the transition between the joints at the con- bottom motor and the condensation tray must be sealed: densation tray Action Smooth the two joints (front and rear on the tran- sition) with a finger.
  • Page 25 Mechanical assembly 3004084-2017-12-20 Water trap See the correct dimensions for the water trap on the drawing below. DN32 25/40...
  • Page 26: Electrical Installation

    Electrical installation 3004084-2017-12-20 4. Electrical installation 4.1 Electrical installation See the attached instructions “Electrical Installation Guide VEX350HX- VEX360HX-370HX for third-party control system”. VEX350HX-360HX-370HX 3004838-2014-03-18 VEX350HX-360HX-370HX Electrical installation guide For third-party control Electrical installation........Chapter 1 + 2 Original instructions EXHAUSTO A/S Tel.
  • Page 27: Maintenance

    ● EUROVENT certification is only valid if original filters are used ● Use of non-original filters may cause leakage in the VEX and impair filter function ● EXHAUSTO recommends that you register the filter replacement date to en- sure filters are replaced at the correct intervals 27/40...
  • Page 28: Hygiene

    Maintenance 3004084-2017-12-20 5.2 Hygiene VDI6022 air hygiene To ensure that the VEX300 meets the requirements of the VDI 6022 hygiene standard standard, its design ensures that: ● bacterial growth and dirt accumulation are minimal ● conditions for cleaning are optimum Filter F7 The outdoor air side of the unit must be fitted with a F7 filter to meet VDI 6022 requirements.
  • Page 29 Maintenance 3004084-2017-12-20 How to remove the The following text describes how to remove the four counter flow heat exchang- counter flow heat ers. exchangers Step Action ● In wall fan section, on panel facing ex- changer section: turn the tensioner clock- wise 7 times.
  • Page 30 Maintenance 3004084-2017-12-20 Step Action ● Remove the panel by pulling on the handle. ● Lift out the right-hand heat exchanger. ● Lift out the left-hand heat exchanger. NB: A single counter flow heat exchanger weighs 13.5 kg. The rear exchangers can now be removed.
  • Page 31: Servicing And Cleaning

    Maintenance 3004084-2017-12-20 Refitting the coun- The following describes how to refit the counter flow heat exchangers and it refers ter flow heat ex- directly to the above instructions for removing the heat exchangers. changers Step Action ● Set the rear exchangers in place. ●...
  • Page 32: Pressure Curves

    Maintenance 3004084-2017-12-20 By using the value for Δp in the relevant diagram (either supply air or extract air), the airflow can be read off. Pressure curves Supply air: VEX350 1000 1200 [l/s] 32/40...
  • Page 33 Maintenance 3004084-2017-12-20 Extract air: VEX350 1000 1200 [l/s] 33/40...
  • Page 34: Technical Data

    Technical data 3004084-2017-12-20 6. Technical data 6.1 Weight, corrosion class, temperature ranges, etc. Weight Weight 635 kg Corrosion class Corrosion class Corrosion class C4 in accordance with EN ISO 12944-2 Temperature ranges Outdoor air temperature -40ºC to +35ºC Ambient temperature -30ºC to +50ºC At temperatures below -25˚C (with outdoor installation), use of a thermostatically controlled heater in automated control box is recommended.
  • Page 35: Compact Filters

    Technical data 3004084-2017-12-20 6.2 Compact filters Pressure loss curves for M5 and F7 filters Filter data Filter panel h x b (qty. 2 per air direction) 414 x 750 414 x 750 Panel filter thickness Efficiency 45 % 85 % Recommended difference between final pres- +100 Pa +100 Pa...
  • Page 36: Bag Filters

    Technical data 3004084-2017-12-20 6.3 Bag filters Pressure loss curves for M5 and F7 filters Filter data Filter area h x b (qty. 2 per air direction) 1 x 592 x 490mm 1 x 592 x 490mm 1 x 592 x 287mm 1 x 592 x 287mm Total number bags x depth 5 x 520mm...
  • Page 37: Capacity Diagram

    Technical data 3004084-2017-12-20 6.4 Capacity diagram 6.4.1 Capacity diagram, ventilation with heat recovery Ventilation with heat recovery Capacity diagram with M5 filters SFP-curve (J/m ) Operating curves A: Pressure supplement with F7 filters B: Pressure supplement with cold water coil/ heating coil 37/40...
  • Page 38: Ordering Spare Parts

    VEX guidelines and on the VEX rating plate. 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.
  • Page 39 3004084-2017-12-20 39/40...

This manual is also suitable for:

Vex300 seriesVex350hVex360hVex370h

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