Exhausto VEX100 Series Manual de usuario
VEX150 for third party
control system with water heating coil HCW
Product information........................................ Chapter 1 + 6
Mechanical assembly..................................... Chapter 2 + 3
Electrical installation.......................................Chapter 4
Maintenance...................................................Chapter 5
Original instructions
3004515-2019-08-28 VEX150-X
EXHAUSTO A/S
Odensevej 76
DK-5550 Langeskov
Tel. +45 65 66 12 34
Fax +45 65 66 11 10
www.exhausto.dk
1. Product information
1.1. Designations used in these instructions.............................................................6
1.1.1. Designations used in these instructions...........................................................6
1.2. Application............................................................................................................. 6
1.3. Location requirements.......................................................................................... 6
1.3.1. Space requirements.........................................................................................7
1.3.2. Requirements for underlying surface............................................................... 8
1.3.3. Condensation outlet......................................................................................... 8
1.3.4. Requirements for duct system......................................................................... 8
1.4. Description............................................................................................................. 9
1.4.1. Horizontal VEX - design..................................................................................9
1.4.2. Vertical VEX - design..................................................................................... 12
1.4.3. Parts of the VEX unit......................................................................................13
1.5. Principal dimensions, Horizontal VEX............................................................... 14
1.6. Principal dimensions, Vertical VEX....................................................................16
2. Handling
2.1. Unpacking.............................................................................................................18
2.2. Transport.............................................................................................................. 18
2.2.1. Transport of Horizontal air handling units...................................................... 18
2.2.2. Transport of Vertical air handling units...........................................................19
2.2.3. Passage through openings............................................................................ 20
2.2.4. Internal transport with reduced weight........................................................... 21
3. Mechanical assembly
3.1. Installation of Horizontal and Vertical VEX........................................................25
3.1.1. Installation directly on floor.............................................................................25
3.1.2. Installation on mounting base........................................................................ 25
3.2. Condensation outlet............................................................................................ 25
3.2.1. Horizontal and Vertical VEX........................................................................... 25
3.2.2. Establishment of condensation outlet............................................................ 25
3.3. Water heating coil................................................................................................ 26
3.3.1. Principles for connecting the water heating coil.............................................26
3.3.2. MVM valve..................................................................................................... 28
4. Electrical installation
4.1. Electrical installation........................................................................................... 30
5. Maintenance, hygiene and servicing
5.1. Maintenance......................................................................................................... 31
5.1.1. Overview of maintenance intervals................................................................ 31
5.2. Hygiene (VEX100VDI only).................................................................................. 31
5.3. Servicing and cleaning........................................................................................32
5.3.1. Filter replacement.......................................................................................... 32
5.3.2. Cleaning the fans........................................................................................... 32
5.3.3. Cleaning the heating coils..............................................................................32
5.3.4. Cleaning the crossflow heat exchanger......................................................... 32
5.4. Airflow measurement.......................................................................................... 33
5.4.1. Determining airflow and pressure.................................................................. 33
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6. Technical data
6.1. Weight, corrosion class, temperature ranges, etc............................................36
6.2. Panel filters...........................................................................................................37
6.3. Water heating system.......................................................................................... 38
6.4. Capacity diagram................................................................................................. 39
6.5. EC Declaration of Conformity.............................................................................39
6.6. Ordering spare parts........................................................................................... 39
6.7. Environmental declaration..................................................................................40
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Symbols, terms and warnings
Prohibition symbol Failure to observe instructions marked with a prohibition symbol
may result in serious or fatal injury.
Danger symbol 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.
The instructions must be fully observed to ensure personal safety and to protect
the equipment and ensure its correct operation. EXHAUSTO A/S accepts no liabil-
ity for accidents caused by equipment not used in accordance with the manual’s
instructions and recommendations.
Supply air/extract
air
This instruction manual uses the following terminology:
● Supply air
● Extract air
● Outdoor air
● Exhaust air
Accessories The confirmation of order states which accessories are delivered with the VEX
unit.
Horizontal and Ver-
tical VEX
Lock the air han-
dling unit during
operation
The VEX unit must always be locked
during operation:
● Use the cylinder lock in the han-
dle. Remember to remove the
key from the lock.
● Or use a padlock. Use the han-
dle’s built-in padlock fixture
Lock
Padlock fitting
Warnings:
Opening the air
handling unit
Do not open the service doors until the supply voltage has been
disconnected at the isolation switch and the fans have stopped.
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.
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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
mm (in accordance with EN294).
Rating plate The VEX unit rating plate shows:
● VEX unit, type (1)
● production number (2)
1
2
NB Always have the production number ready when contacting EXHAUSTO A/S.
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1. Product information
1.1 Designations used in these instructions
1.1.1 Designations used in these instructions
The simplified diagram shows a VEX unit with LEFT fan placement.
Component Function
BP1 Bypass motor
HCW Water heating coil
LS (F) Closing damper, outdoor air
LS (A) Closing damper, exhaust air
MC1 Motor controller 1 for extract air motor
MC2 Motor controller 2 for supply air motor
M1 Extract air motor
M2 Supply air motor
P1.2X and P1.2Y Points for measuring pressure rise across extract air fan
P2.2X and P2.2Y Points for measuring pressure rise across supply air fan
P2.1X and P2.1Y Points for measuring pressure loss across outdoor air filter
P1.1X and P1.1Y Points for measuring pressure loss across extract air filter
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.
1.3 Location requirements
Location The air handling unit is designed for indoor fitting.
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Outdoor VEX100H:The VEX100 horizontal model can be ordered for outdoor installation,
in which case it is provided with a cover (accessory VEX100OD).
1.3.1 Space requirements
The drawings below show how much space is needed for opening the doors and
servicing the air handling unit, e.g. changing filters, cleaning, servicing, etc.
NB For servicing, the VEX must have a free height of at least 300 mm above the con-
nection box. (For Vertical:For servicing, the VEX must have a free height of at
least 300 mm in front of the connection box.
Horizontal VEX
1590
735
RD10299-02
785
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Vertical VEX
735
785
RD10301-02
1.3.2 Requirements for underlying surface
Horizontal and Ver-
tical VEX
When floor-mounting the unit, the surface must be:
● flat
● level (+/- 3 mm per metre)
● hard
● resistant to vibration
1.3.3 Condensation outlet
A condensation outlet must be installed in the immediate vicinity of the unit. See also
"Mechanical assembly" section.
1.3.4 Requirements for duct system
Connection to duct
system
To achieve maximum performance and minimal energy consumption, the unit
should be connected to a straight duct at least 750 mm long, before and after the
unit.
Silencers The duct system must be fitted with silencers specified by the Project Manager,
which meet the requirements of the operating area.
Insulation The duct system must be insulated against:
● condensation
● sound
● thermal loss
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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.
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
mm.
1.4 Description
1.4.1 Horizontal VEX - design
VEX unit design The following drawings show an overview of the design of left and right models of
VEX units (shown without door).
1,1,A
2,1,A
1,2,A
2,2,A
1
2
3
4
6
710
12
16
17
18
11
13
15
19
RD11762-02
89
5
14
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1,1,A
2,1,A
1
2
3
4
6
710
18
11
19
89
5
1,2,A
2,2,A
12
16
17
13
15
14
RD11763-02
Pos. Function
1 Spigot 2.1.A Outdoor air spigot The spigot can also be posi-
tioned on the top of the air handling unit (2.1.B).
2 Closing damper LS Closing damper, outdoor air, LSF (accessory)
3 Outdoor air filter Filters outdoor air
4 Bypass damper For operation with heat recovery, the bypass damp-
er is closed so that the air passes through the
crossflow heat exchanger. For bypass operation,
the damper is open, and the air bypasses the heat
exchanger
5 Measurement sock-
et
Measurement socket for pressure loss across the
filters
6 Spigot 1.1.A Extract air spigot
7 Condensation outlet Channels condensate to the drain
8 Extract air filter Filters extract air
9 Crossflow heat ex-
changer
Transfers heat from extract air to supply air
10 Condensation tray Collects the condensate and drains it away from the
crossflow heat exchanger to the condensation out-
let.
11 Water heating coil
with bleed screw
Heats supply air if heat recovery is insufficient.
12 Spigot 2.2.A Supply air spigot. The spigot can also be positioned
at the bottom of the air handling unit (2.2.B)
13 Supply air fan For outdoor air/supply air
14 Measurement sock-
et
Measurement socket for airflow calculation
15 Extract air fan For exhaust air/extract air
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