Exhausto VEX300 Series User manual

VEX330HX
Installation instructions
(3rd party control system)
Product information........................................ Chapter 1 + 6
Mechanical assembly..................................... Chapter 2 + 3
Electrical installation.......................................Chapter 4
Maintenance...................................................Chapter 5
The following accessories are
supplied seperately:
Prod.order no.:
Sales order no.:
Unit supplied with (factory fitted):
Compact filter F7
VEX330HX, motor type 1
VEX330HX, motor type 2
Compact filter M5
OD - roof for outdoor
HCE external heating coil (electrical)
HCW external heating coil (water)
Closing damper, LS315 (LSA exhaust air)
Closing damper, LS315, (LSF outdoor air)
Closing damper, LSR315, with
spring-return (LSFR outdoor air)
Closing damper, LSR315, with
spring-return (LSAR exhaust air)
Original instructions
3004687-2019-01-10 VEX330HX
EXHAUSTO A/S
Odensevej 76
DK-5550 Langeskov
Tel. [phone]
Fax [phone]
[email protected]
www.exhausto.dk

1. Product information
1.1. Terms used in these instructions.........................................................................6
1.1.1. Simplified diagram............................................................................................6
1.2. Application............................................................................................................. 6
1.3. Location requirements.......................................................................................... 6
1.3.1. Space requirements.........................................................................................6
1.3.2. Requirements for underlying surface............................................................... 7
1.3.3. Condensation outlet......................................................................................... 7
1.3.4. Requirements for duct system......................................................................... 7
1.4. Description............................................................................................................. 9
1.4.1. Construction of the VEX unit............................................................................9
1.4.2. Parts of the VEX unit......................................................................................10
1.5. Principal dimensions...........................................................................................10
1.5.1. Dimensioned sketch.......................................................................................10
2. Handling
2.1. Unpacking.............................................................................................................11
2.1.1. Weight............................................................................................................ 11
2.2. Transport...............................................................................................................11
2.2.1. Passage through openings............................................................................ 12
2.2.2. Internal transport with reduced weight........................................................... 13
3. Mechanical assembly
3.1. Positioning of unit............................................................................................... 14
3.1.1. Installation directly on floor.............................................................................14
3.1.2. Subsequent installation of base..................................................................... 14
3.2. Condensation drain............................................................................................. 14
3.2.1. Establishment of condensation outlet............................................................ 15
4. Electrical installation
4.1. Electrical installation........................................................................................... 16
5. Maintenance, hygiene and servicing
5.1. Maintenance......................................................................................................... 17
5.1.1. Opening the VEX unit.....................................................................................17
5.1.2. Overview of maintenance intervals................................................................ 18
5.2. Hygiene.................................................................................................................18
5.3. Servicing and cleaning........................................................................................18
5.3.1. Filter change.................................................................................................. 18
5.3.2. Servicing and cleaning the motor...................................................................19
5.3.3. Cleaning the condensation tray......................................................................20
5.3.4. Removing and cleaning the counter flow heat exchangers........................... 20
5.3.5. Cleaning the heating coils..............................................................................22
5.4. Airflow measurement.......................................................................................... 22
5.4.1. Determining airflow and pressure.................................................................. 22
6. Technical data
6.1. Weight, corrosion class, temperature ranges, etc............................................26
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6.2. Compact filters.....................................................................................................27
6.3. Capacity diagram................................................................................................. 28
6.3.1. Capacity diagram, VEX330H-1...................................................................... 28
6.3.2. Capacity diagram, VEX330H-2...................................................................... 29
6.4. Declaration of Conformity...................................................................................29
6.5. Ordering spare parts........................................................................................... 29
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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.
Warnings
Opening the unit Do not open the service doors until the supply voltage has been
disconnected at the isolation switch and the fans have stopped.
Opening... Do not remove the detachable panel until the supply voltage has
been disconnected at the isolation switch (arrow) and the fans
have stopped.
RD13189-01
Do not remove both panels at the same time, as the cabinet be-
comes unstable.
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.
No duct connection If one or more of the spigots is not connected to a duct: fit a pro-
tective net to the spigots with a maximum mesh width of 20 mm.
Icing monitor The high-efficiency of the counter flow heat exchanger means
that some operating conditions will increase the risk of ice for-
mation inside the heat exchanger. Ensure the counter flow heat
exchanger is protected against icing.
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Information plate The VEX unit information plate
shows:
● VEX model type (1)
● Unit production order no. (2)
1
2
NB: Always have the production number ready when contacting EXHAUSTO A/S.
Supply air/extract
air
This instruction manual uses the following terminology:
● Supply air (air blown in)
● Extract air (air removed)
● Outdoor air
● Exhaust air
Front page: Acces-
sories On the front page of the instruction manual is a checklist, detailing the accessories
delivered with the VEX unit.
NB: When retrofitting EXHAUSTO accessories, please update the checklist on
the front page.
Left/Right VEX330H is designed for use as both a Left and Right model, as both side panels
can be removed.
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1. Product information
1.1 Terms used in these instructions
1.1.1 Simplified diagram
Component Function Standard/acces-
sory
BP1 Bypass damper Standard
Main Connection Main control/control box Standard
M1 Extract/exhaust air motor Standard
M2 Outdoor/supply air motor Standard
ΔP1.2 and ΔP2.2 Measurement of pressure rise across ex-
tract air/supply air fan
Standard
ΔP1.1 and ΔP2.1 Measurement of pressure drop across ex-
tract air/supply air filter
Standard
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
Positioning The unit is designed for indoor fitting. The unit may be fitted outdoors if it is fitted
with a cover (accessory VEX300HOD).
1.3.1 Space requirements
The cabinet has a detachable panel on each side. The drawing below indicates how
much space is needed for servicing the unit, i.e. changing filters, cleaning, servicing,
etc. See section "Principal dimensions" for more details.
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The cabinet becomes unstable if both detachable panels are re-
moved!
1385
735
632
300
958
RD14130-01
NB A free height of at least 300 mm is required above the unit's connection box for
servicing.
1.3.2 Requirements for underlying surface
When fitting the unit directly to an existing surface - i.e. without using the mounting
base (accessory) - the surface must be:
● level
● horizontal (±3mm per metre
● hard
● vibration-resistant
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
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
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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.
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.
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1.4 Description
1.4.1 Construction of the VEX unit
The drawing below shows an overview of the VEX unit construction. The drawing
shows a right-hand version of the VEX.
Supply air
Exhaust air
Outdoor air
Extract air
1
2
3
4567
8 9 10 11 12
RD13462GB-01
Pos. Part Function
1 Supply air fan Blows air into the room
2 Exhaust air fan Removes "stale" air
3 Condensation outlet
spigot
Conducts condensate away from the condensa-
tion tray. External condensation outlet connects
here.
4 Base Accessories
5 Condensation tray Collects the condensate and drains it away from
the cross-flow heat exchanger to the condensa-
tion outlet
6 Counter flow heat ex-
changer
Qty. 1 aluminium counter flow heat exchanger
7 Outdoor air filter Filters outdoor air
8 Extract air filter Filters extract air
9 Terminals Connection of ventilation components
10 Connection box Connection of accessories
11 Bypass motor Opens/closes bypass damper
12 Bypass duct Directs air around the counter flow heat ex-
changer
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1.4.2 Parts of the VEX unit
Cabinet The inside and outside of the cabinet is made of Aluzinc® and insulated with 50
mm mineral wool.
Fans The unit contains two centrifugal fans with backward curved blades for extract air
and supply air.
Counter flow heat
exchanger
The unit's counter flow heat exchanger is made of aluminium and is highly effi-
cient. The counter flow heat exchanger can be removed and cleaned.
Filters The unit includes integral compact filters for both extract air and supply air.
Bypass damper The unit has an integral variably adjustable bypass, allowing for precise control of
the supply air temperature.
1.5 Principal dimensions
1.5.1 Dimensioned sketch
1,2
2,2
1,1
2,1
½"M
735
970
12
238
743
970
735
O
315
O315
367
367
100 322
300
717
1064
367
367
O
315
O
315
38
367
RD13079GB-01
16
1200
677
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2. Handling
2.1 Unpacking
Supplied compo-
nents
The following components are supplied:
● 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.
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.
2.1.1 Weight
The VEX unit weighs:
- VEX330H-1: 153 kg.
- VEX330H-2: 156 kg.
2.2 Transport
Transport Transport the VEX unit on the disposable pallet. Do not lift it with the spigots or
connection box.
Transport methods Transport the VEX unit in one of the following ways:
Method Drawing
Manual transport:
Lifting brackets for
manual transport can
be fitted as shown on
the drawing:
RD10541-01
RD10542-01
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Method Drawing
Using lifting truck or
fork-lift truck:
Lift the VEX unit on the
disposable pallet.
IMPORTANT: If the
disposable pallet can-
not be used, the forks
on the lifting equipment
must be long enough
to prevent damage to
the bottom of the unit.
RD12038-01
Crane:
Never lift the
VEX unit
with the lift-
ing brackets
by using a
crane.
Use straps and lifting
yokes to prevent dam-
age to the unit.
RD13125-01
2.2.1 Passage through openings
Unit dimensions 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:
Length Width Height inc. connection box
VEX330H 1200 mm 735 mm 1070 mm, including connection box 100 mm
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2.2.2 Internal transport with reduced weight
Weight reduction The weight can be reduced during transport by removing fans, counter flow heat
exchanger and one of the doors. The table below shows the how much weight can
be reduced by removing the various parts.
Parts Weights, VEX330H-1 Weights, VEX330H-2
Fan, 2 items at 5.0 kg = 10 kg 6.5 kg = 13 kg
Counter flow heat exchangers,
1 item at
14.5 kg 14.5 kg
Door/removable panel, 1 item
at
30 kg 30 kg
Total weight, VEX330H 153 kg 156 kg
Dismounting See section "Maintenance" for instructions for dismounting doors, fans and coun-
ter flow heat exchanger and for removal of filters.
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3. Mechanical assembly
3.1 Positioning of unit
3.1.1 Installation directly on floor
Floors must meet the requirements in section "Requirements for underlying surface".
If the floor surface does not meet those requirements, then the VEX300H must be
installed on a suitable base - described below.
NB: After installation, make sure that the air handling unit is completely level
3.1.2 Subsequent installation of base
How to install the
base
A
B
C
D
130-160
RD12035-01
Step Action
1 Lay the unit on its side - on one of the detachable panels
2 Screw adjustable screws (B) and washer (C) into the base (A)
3 Screw base (A) firmly to the holes in the cabinet, using 6 screws (D)
4 Adjustable screws (B) can adjust the height by up to 30 mm
3.2 Condensation drain
Drain the condensation outlet into a floor gully or similar. The
condensation outlet must be fitted with a water trap. See below.
Risk of frost Where there is a risk of frost: Insulate the condensation outlet
and protect it against frost - if necessary, using a heating cable.
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3.2.1 Establishment of condensation outlet
Location The drawing below illustrates the correct positioning of the water trap from the
condensation outlet.
30 50
RD12034-01
NB: When VEX330H is mounted on a base, there is sufficient free height to accommo-
date the water trap.
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4. Electrical installation
4.1 Electrical installation
See the attached instructions “Electrical Installation Guide for VEX320CX/-330CX/
330HX for third-party control system”.
Electrical installation guide
for VEX320CX/330CX/HX for third-party control
systems
ON
Electrical installation........................................Chapter 1 + 2
Original instructions
3004231-2014-02-25 Electrical installation guide VEX320-330CX
EXHAUSTO A/S
Odensevej 76
DK-5550 Langeskov
Tel. [phone]
Fax [phone]
[email protected]
www.exhausto.dk
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5. Maintenance, hygiene and servicing
5.1 Maintenance
One of the VEX unit's detachable panels must be opened to allow servicing and
cleaning.
Disconnect power at the isolation switch before opening VEX.
5.1.1 Opening the VEX unit
How to open
VEX330H
1
2
RD12033-02
Step Action
1 Unscrew the bolts from the detachable panel (M8 bolts, bit NV 6 mm)
Only dismount one panel as the cabinet becomes unstable
if both are dismounted
If the heat exchanger needs taking out, it is an advantage to remove the
panel opposite the connection box (above the unit). This avoids dis-
mounting of the bypass damper.
2 Remove the panel
3 Service the VEX unit
After servicing
- check sealing strip for damage
- replace the panel and fix the bolts
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5.1.2 Overview of maintenance intervals
The following chart details the recommended maintenance intervals, based on nor-
mal operation. EXHAUSTO recommends maintenance is adjusted to suit the actual
operating requirements.
Component Procedure Twice a
year
Once a
year
Filters* We recommend that both filters are changed at
the same time.
Filters should be changed at least: X
Filter guide Check that all the seals are tight X
Seals and sealing strips Check that all the seals are tight X
Fans Check
Remove the fan unit. See section "Internal trans-
port with reduced weight"
Cleaning. See next section
X
Counter flow heat exchang-
er
Cleaning, see next section X
Heating coils (accessory) Clean the heating coil, see next section X
Condensation outlet Check the outlet is not blocked using a torch to il-
luminate from the condensation tray
X
*Filters Only use original filters
● The provided filter data and pressure loss graphs (section "Technical data")
are based on the use of original filters
● 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
5.2 Hygiene
VDI6022 air hygiene
standard
VEX320/330 has been designed to comply with air hygiene standard VDI6022.
This means that:
● bacterial growth and dirt accumulation is minimal
● conditions for cleaning are optimum
F7 filter According to VDI6022 the filter on the outdoor air side must be an F7 filter.
5.3 Servicing and cleaning
5.3.1 Filter change
Disconnect power at the isolation switch before opening VEX.
For opening the VEX unit, see section 5.1.
Pull the filters out. Remember to check the flow direction - see the arrows on the fil-
ter.
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5.3.2 Servicing and cleaning the motor
Disconnect power at the isolation switch before opening VEX.
How to remove the
motor Step Action Illustration
● Pull out the safety split pins
● Unscrew the nuts
● Lift the motor section free of
the ventilator panel
NB: The motor sec-
tion weighs:
VEX300H-1: 5 kg
VEX300H-2: 6.5 kg
2 ● The motor section is re-
moved, and then turned, to
access the connector
● Detach the cable by loosen-
ing the sealing strip around
the motor section's base
plate
● Unscrew the plug from the
motor block
● Lift out the motor
3 Cleaning:
● Clean the impeller by vacuum cleaning - and if necessary, finish off
with a damp cloth
● Clean the impeller blades carefully to avoid imbalance
4After cleaning: Check that the VEX unit works without vibrations
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5.3.3 Cleaning the condensation tray
How to clean the
condensation tray Step Action
1 Dismount the condensation tray by releasing the four corner screws
2 Loosen the four screws that hold the condensation outlet
3 Then pull out the condensation tray for cleaning
NB: Clean the base of the VEX at the same time, as this is otherwise inac-
cessible because of the condensation tray.
5.3.4 Removing and cleaning the counter flow heat exchangers
Warnings Disconnect power at the isolation switch before opening the
doors.
Take care, as the counter flow heat exchanger is heavy - weight
14.5 kg
How to remove the
counter flow heat
exchangers
The counter flow heat exchanger fins can be easily damaged -
avoid contact with the fins.
The counter flow heat exchanger can be removed from both sides of the unit.
Choosing the side that is opposite the connection box on top of the unit avoids
having to remove the bypass damper.
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