Exhausto VEX300 Series User manual

VEX360HX
counter flow heat exchanger, for 3rd party control
system
RD12721-01
Product information........................................ Chapter 1 + 6
Mechanical assembly..................................... Chapter 2 + 3
Electrical installation.......................................Chapter 4
Maintenance...................................................Chapter 5
Closing damper, LS500 (LSA exhaust air)
Closing damper, LS500, (LSF outdoor air)
closing damper, LSR500, with
spring-return ( LSFR outdoor air)
The following accessories are supplied
separately:
Unit supplied with (factory fitted):
HCE external heating coil,
HCW external heating coil (water)
Frequency converter
CCW cold water coil
Mounting base (unassembled)
MLON
Closing damper, LSR500, with
spring-return (LSAR exhaust air)
Serial no.:
Prod. order no.:
Sales order no.:
FP compact filter
OD - roof for outdoor
FB bag filter
kW
Original instructions
3004085-2017-12-20 VEX360HX
EXHAUSTO A/S
Odensevej 76
DK-5550 Langeskov
Tel. [phone]
Fax [phone]
[email protected]
www.exhausto.dk

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. Description............................................................................................................. 9
1.4.1. VEX unit construction......................................................................................9
1.5. Main aim................................................................................................................11
1.5.1. Dimensional drawing......................................................................................11
2. Handling
2.1. Unpacking.............................................................................................................14
2.2. Transport.............................................................................................................. 14
2.2.1. Passage through openings .......................................................................... 14
2.2.2. Internal transport with reduced weight........................................................... 15
3. Mechanical assembly
3.1. Installing the unit................................................................................................. 18
3.1.1. Assembly instructions.................................................................................... 18
3.1.2. Step 1–4.........................................................................................................19
3.2. Condensation drain............................................................................................. 24
3.2.1. Condensation outlet...................................................................................... 24
4. Electrical installation
4.1. Electrical installation........................................................................................... 26
5. Maintenance
5.1. Maintenance Schedule........................................................................................ 27
5.2. Hygiene.................................................................................................................28
5.3. Service.................................................................................................................. 28
5.3.1. Filter change.................................................................................................. 28
Removing the counter flow heat exchangers.................................................28
5.3.2. Servicing and cleaning...................................................................................31
5.4. Airflow measurement.......................................................................................... 31
5.4.1. Determination of airflow................................................................................. 31
Pressure curves............................................................................................. 32
6. Technical data
6.1. Weight, corrosion class, temperature ranges, etc............................................34
6.2. Compact filters.....................................................................................................35
6.3. Bag filters............................................................................................................. 36
6.4. Capacity diagram................................................................................................. 37
6.4.1. Capacity diagram, ventilation with heat recovery...........................................37
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6.4.2. Capacity diagram, ventilation with bypass operation..................................... 38
6.5. Ordering spare parts........................................................................................... 38
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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
These instructions use the following terms as given in DS447-2013:
● Supply air (air blown in)
● Extract air (air removed)
● Outdoor air
● Exhaust air
Left/Right The term R for Right, indicates the supply air is to the right of the cooling unit, as
seen from the operating side. The term L for Left, indicates the supply air is to the
left.
Front page: Acces-
sories
The front page of the instruction manual contains a checklist, detailing the acces-
sories delivered with the VEX unit.
NB When retrofitting EXHAUSTO accessories, please update the checklist on
the front page.
Warnings
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).
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
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Information plate The VEX unit information plate shows:
● VEX model type (1)
● Unit production no. (2)
1
2
NB: Have the production number ready at all times when contacting EXHAUSTO
A/S.
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1. Product information
1.1 Designations used in these instructions
1.1.1 Model overview
Elements Explanation
RD12767-01
Fan
RD12763-01
Compact filter
RD12762-01
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
11
Air direction, extract air
22
Air direction, supply air
NB The sketch shows compact filters
Fan placement Air directions
LEFT
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Fan placement Air directions
RIGHT
NB Spigot location B option not available with outdoor models.
1.1.2 Terms used in these instructions
The simplified diagram shows a VEX unit with LEFT fan placement.
Component Function
MC1 Motor control, motor 1 (exhaust air)
MC2 Motor control, motor 2 (supply air)
M1 Exhaust motor
M2 Supply air motor
BP1 M Bypass damper with motor (extract air - exhaust air)
BP2 M 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.
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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. The drawing shows compact fil-
ters.
1660
840
945
RD12747-02
NB For servicing purposes, a free height of at least 200 mm is required above the
unit’s connection box.
1.3.2 Requirements for underlying surface
When floor-mounting the unit, the surface must be:
● level (+/- 10 mm per metre)
● hard
● resistant to vibration
The VEX unit leg height can be adjusted: 55–110 mm.
1.3.3 Outlet
A condensation outlet must be installed in the immediate vicinity of the unit. See also
“Mechanical fitting” section.
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1.3.4 Requirements for duct system
Silencers The duct system must be fitted with silencers specified by the Project Manager,
which meet the requirements of the operating area.
Bends A duct bend may be fitted immediately after the unit, because the airflow in the
spigot has a uniformly moderate speed profile, which results in negligible system
pressure loss.
Insulation The duct system must be insulated against:
● condensation
● sound leakage
● 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
mm.
1.4 Description
1.4.1 VEX unit construction
Layout drawing,
Left model
The drawing below illustrates the construction of the unit, without doors:
The drawing shows compact filters.
1
23456789
10 11 13 1412 15 16
2,1,A
1,2,A
1,1,A
2,2,A
RD12824-01
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Layout drawing,
Right model
11
984 5 6 732
101 13
14 121516
2,1,A
1,2,A
1,1,A 2,2,A
RD12825-01
Pos.
no.
Part Function
1 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
2 Closing damper LS Closing damper, exhaust air, LSA (accesso-
ry).
3 Spigot 1,2,A Exhaust air spigot
4 Fan unit, exhaust air Removes "stale" air
5 Motor control, extract
air fan
Variably adjusts fan
6 Counterflow heat ex-
changer
Four aluminium counter flow heat exchangers
7 Outdoor air filter Filters outdoor air
8 Spigot 2,1,A Outdoor air spigot
9 Closing damper LS Closing damper, outdoor air, LSF (accessory).
10 Heating coil Heats supply air if heat recovery is insufficient
(accessory).
11 Spigot 2,2,A Supply air spigot. The spigot can also be posi-
tioned in the top of the unit (2,2,B). Does not
apply to units designed for outdoor fitting
12 Fan unit, supply air Blows air into the room
13 Motor control, extract
air fan
Variably adjusts fan
14 Connection box Connection terminal board
15 Connection box Cover plate
16 Extract air filter Filters extract air
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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
exchangers
The unit's counterflow heat exchangers are made of aluminium and are highly effi-
cient. The counterflow heat exchangers can be taken out and cleaned. See sec-
tion "Servicing".
Filters There are integral panel filters on both the extract air and outdoor air sides.
Bypass design The unit has a built-in double modulating bypass.
1.5 Main aim
1.5.1 Dimensional drawing
The sketches show compact filters.
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VEX360H, Left
RD12729DK-01
385
1,2,A
1,1,A
2,2,A
2,1,A
2,2,A
2,1,A
1,1,A
1,2,A
200
2,2,B 1,1,B
153 500 153500
824
65293265
1137
DN32
8281406828
278 500
1174 500
1800
1904
65
945
71 800
71 800
326 500
802
1222 500
65
71800
71800
1)
2)
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".
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VEX360H, Right
RD12730DK-01
1,2,A
1,1,A 2,2,A
2,1,A
2,2,A
2,1,A
1,1,A
1,2,A
200
2,2,B
1,1,B
153 500
824 385
65 2932 65
153500
DN32
1137
828 1406 828
802
326 500
1222 500
65
71 800
71 800
278 500
1174 500
1800
1904
71800
71800
65
9451)
2)
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".
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2. Handling
2.1 Unpacking
Supplied compo-
nents
The following components are supplied:
● 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. The base is packed in a wooden box.
Unpacking Depending on the installation site's spatial limitations, unpacking can be done in
the following manner:
● Unpack and assemble the base and sections and subsequently transport the
VEX unit to the site or
● set up the base at the installation side and mount the sections on the base
afterwards.
Base assembly is described in section 3.1.
NB Once the plastic has been removed, the unit must be protected against dirt
and dust:
●The covers on the spigots must not be removed until the spigots are
connected to the ventilation ducts.
●Whenever possible, keep the unit closed during fitting.
The unit should be
cleaned before it is
used.
Once the VEX unit is fitted, it must be checked and thoroughly cleaned. All dust,
debris and metal shavings must be vacuumed up.
2.2 Transport
Transport equip-
ment
Move the VEX unit using a lifting or fork-lift truck or crane, as described in the in-
structions "Transport of VEX350-360-370".
2.2.1 Passage through openings
The sections' prin-
cipal dimensions
Measurements are based on the exact dimensions of the VEX unit.
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The VEX unit is shown with compact filters.
RD12798-01
828
1600
1704
1408
828
945
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
Between 900 - xxxx mm Remove doors and the support bars which the central
doors are fixed to – as described in section "Internal
transport with reduced weight".
Greater than xxxx mm The unit can pass through
2.2.2 Internal transport with reduced weight
Weight reduction The weight can be reduced during transport by removing the service doors, fan
units and counter flow heat exchanger. The table below shows the how much
weight is reduced when the subcomponents are removed.
Section Subcomponents Weight
Fan section, 2 x 156 kg
Fan section, empty cabinet 101 kg
Door 19 kg
Fan unit 32 kg
Compact or bag filters, 2 items of 2 kg
weight
4 kg
Exchanger section, 1 x
310 kg
Exchanger section, empty cabinet 197 kg
Counter flow heat exchangers, 4 x 19 kg 76 kg
Doors, 2 x 18.5 kg 37 kg
Base, 1 x 80 kg
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Section Subcomponents Weight
Total weight VEX360 unit 702 kg
Removing the serv-
ice doors
To remove the service doors:
RD12751-01
1
2
Detail B
Detail A
AB
AHow to remove the doors (2 in no.) to the fan sections:
● Open the door
● Tap the hinge door pin out from below using a small pin bolt or
similar
● Lift the door off
BHow to remove the doors (2 in no.) to the heat exchanger sections:
● Open the door
● Unscrew the door hinge from the support bar (1) and remove
the door (be careful as the door is heavy - weighs nearly 19
kg).
● Unscrew the support bar (2)
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To remove the fan
unit
A
DETAIL A
2
1
RD13047-01
Step Action
1 Remove the fixing screws (1) on the sliding rail (out towards the operat-
ing side)
2 Cut the cable ties holding the motor cable and the cable ties holding the
measuring hose
3 Pull the fan unit out to the end-stop (a screw on each rail acts as a stop)
4 Remove the supply cable and the control cable in the motor control.
5 Remove the two end-stops (screws one on the sliding rail (2)). The fan
unit can now be lifted off.
NB: A single fan unit weighs 32 kg.
Removing the coun-
ter flow heat ex-
changers
See section "Servicing"
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3. Mechanical assembly
3.1 Installing the unit
3.1.1 Assembly instructions
Step 1, assemble the base
A
A
B
B
C
C
DD
E
E
F
F
F
F
G
G
GG
RD12787-01
Step 2, push the sections onto the base Step 3–4, tighten the VEX together
RD12816-01
1
1
22
RD12754-01
Base The unit must be assembled on the base – to ensure it is tight-
ened correctly.
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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:
6x 12x
M10x25 M10
2x
2x
2x
2x
2x
4x
4x
6x 12x
4xM10x35
RD12784-01
A)
B)
C)
D)
E)
F)
G)
M20
34x 34x 4x
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Base assembly Drawing
The following tools are re-
quired:
2x17mm 2x30mm
RD12783-01
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
on.
RD12785-01
RD12786-02
40
Lay the base parts on the
floor as shown in the illus-
tration.
A
A
B
B
C
C
DD
E
E
F
F
F
F
G
G
GG
RD12787-01
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