Exhausto VEX320CX User manual

VEX320CX
(3rd party control system)
Installation instructions
Product information........................................Chapter 1 + 6
Mechanical assembly.....................................Chapter 2 + 3
Electrical installation.......................................Chapter 4
Maintenance...................................................Chapter 5
Closing damper, LSR315-24, with
spring-return (LSFR outdoor)
The following accessories are
supplied seperately:
Prod.order no.:
Sales order no.:
Unit supplied with (factory fitted):
Compact filter F7
VEX320, motor type 1
VEX320, motor type 2
Self-adhesive foam strip
(VEX with hinged doors only)
V300CDHS, hinged doors
V300CDRS, sliding doors
Closing damper, LS315-24, (LSA exhaust)
Closing damper, LS315-24, (LSF outdoor)
Compact filter M5
pieces, HMI control panel
HCE external heating coil (electrical)
HCW external heating coil (water)
Original instructions
3004210-2016-02-23 VEX320CX
EXHAUSTO A/S
Odensevej 76
DK-5550 Langeskov
Tel. [phone]
Fax [phone]
[email protected]
www.exhausto.dk

1. Product information
1.1. Model overview......................................................................................................6
1.2. Terms used in these instructions.........................................................................7
1.2.1.Simplified diagram............................................................................................7
1.3. Application.............................................................................................................7
1.4. Location requirements..........................................................................................7
1.4.1.Space requirements.........................................................................................8
1.4.2.Ceiling requirements........................................................................................8
1.4.3. Requirements for duct system........................................................................9
1.5. Description.............................................................................................................9
1.5.1. Construction of the VEX unit...........................................................................9
1.5.2.Parts of the VEX unit......................................................................................11
1.6. Principal dimensions...........................................................................................11
1.6.1.VEX320C, general dimensions .....................................................................11
1.6.2.Dimensional sketches, doors.........................................................................14
2. Handling 2.1. Unpacking.............................................................................................................15
2.1.1. Weight...........................................................................................................15
2.2. Transport..............................................................................................................15
2.2.1. Passage through openings ..........................................................................16
2.2.2. Internal transport with reduced weight..........................................................16
3. Mechanical assembly
3.1. Positioning of unit...............................................................................................17
3.1.1.Mounting on ceiling........................................................................................17
3.1.2.Insulation using self-adhesive foam strip.......................................................18
3.2. Condensation drain.............................................................................................18
4. Electrical installation
4.1. Electrical installation...........................................................................................19
5. Maintenance, hygiene and servicing
5.1. Maintenance.........................................................................................................20
5.1.1.VEX300C with hinged doors..........................................................................20
5.1.2.VEX300C with sliding doors...........................................................................21
5.1.3.Overview of maintenance intervals................................................................22
5.2. Hygiene.................................................................................................................22
5.3. Servicing and cleaning........................................................................................22
5.3.1.Filter change..................................................................................................22
5.3.2.Servicing and cleaning the motor...................................................................23
5.3.3. Removing and cleaning the counter flow heat exchangers..........................24
5.3.4.Cleaning the heating coils..............................................................................26
5.4. Airflow measurement..........................................................................................27
5.4.1.Determining airflow and pressure..................................................................27
6. Technical data 6.1. Weight, corrosion class, temperature ranges, etc............................................30
6.2. Compact filters.....................................................................................................31
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6.3. Capacity diagram.................................................................................................32
6.3.1.Capacity diagram, VEX320C-1......................................................................32
6.3.2.Capacity diagram, VEX320C-2......................................................................33
6.4. Ordering spare parts...........................................................................................33
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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 equipment.
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 liability for
accidents caused by equipment not used in accordance with the manual’s instruc-
tions 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.
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 formation
insidetheheatexchanger.Ensurethecounterflowheatexchanger
is protected against icing.
Information plate The VEX unit information plate shows:
1. VEX model
2. Production order no.
1
2
NB Always have the production number ready when contacting EXHAUSTO A/S.
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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 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.
Left/Right See definition of Left/Right in Section 1.1 Model overview.
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1. Product information
1.1 Model overview
Elements Description
Fan
RD12763-01
Compact filter
1,1 Extract air spigot
1,2 Exhaust air spigot
2,1 Outdoor air spigot
2,2 Supply air spigot
1
Air direction, extract air
2
Air direction, supply air
Fan placement Air directions
LEFT,
VEX unit from above
RD12944GB_DK_DE_NO_SE_NL-01
2,2
1,1
1,2
2,1
1
1
1
2
2
2
Bypass
RIGHT,
VEX unit from above
RD12945GB_DK_DE_NO_SE_NL-01
2,2
1,1
1,2
2,1
1
1
1
2
2
2
Bypass
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1.2 Terms used in these instructions
1.2.1 Simplified diagram
Component Function Standard/accessory
BP1 Bypass damper Standard
Main Connection Main control/control box Standard
M1 Extract/exhaust air motor Standard
M2 Outdoor/supply air motor Standard
1.3 Application
Comfort ventilation EXHAUSTO VEX is used for comfort ventilation tasks. The VEX unit is designed for
ceiling mounting and must be used as such.
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.
1.4 Location requirements
Positioning The unit is designed for indoor fitting. The unit may be positioned with the side op-
posite the connection box up against a rear wall.
NB If the VEX unit has sliding doors, space must be allowed for opening the snap locks
on the rear (75 mm).
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1.4.1 Space requirements
VEX320C with
hinged doors The cabinet has two hinged doors. The drawing below indicates how much head- room is needed for opening the doors and servicing the unit, i.e. changing filters,
cleaning, servicing, etc.
1085
800
RD12946-02
1600
Space requirements, width: 1,295 mm. (Width of unit (995 mm.) plus space for
opening connection box (300 mm)).
VEX320C with slid-
ing doors Thecabinet has2 doorswhich can be individually releasedand slid behind the other door.The drawing below indicates how much space is neededfor opening the doors
and servicing the unit, i.e. changing filters, cleaning, servicing, etc.
RD12947-03
540
800
1985-2770
1335-1035
Space requirements, width: 1,370 mm. (Width of unit (995 mm.) plus room for
opening connection box (300 mm) and for opening tension fittings on the rear (75
mm)).
See also ●section "Principal dimensions of VEX320C" for further dimensions
●section "Maintenance" for information on opening the doors
1.4.2 Ceiling requirements
When fitting the unit to a ceiling, the ceiling must be:
●flat
●resistant to vibration
●horizontal or sloping towards the condensation outlet
●designed to bear the weight of the unit
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1.4.3 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.
Connection to duct
system Aductbend maybefitted immediately aftertheunit, becausetheairflow inthespigot has a uniformly low speed profile, resulting in negligible system pressure drop.
Insulation The duct system must be insulated to prevent
●condensation
●sound leakage
●heating/cooling losses
Prerequisites Adequate insulation of the duct system in the operating area is a prerequisite for
achieving the calculated sound data during operation.
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 pro-
tective net to the spigots with a maximum mesh width of 20 mm.
1.5 Description
1.5.1 Construction of the VEX unit
The drawings below shows an overview of the VEX unit construction. The lower draw-
ing shows a VEX with sliding doors.
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RD12976-02
3 4
567891011
1 2
RD13207GB-01
15
14
13
Pos. no. Part Function
1 Bypass motor Opens/closes bypass damper
2 Terminals Connection of ventilation components
3 Connection box Connection of power and diverse accesso-
ries
4 Suspension clamps Clamps for fitting the unit to the ceiling
5 Extract air fan Removes "stale" air
6 Filter for supply air Filters the supply air
7 Counter flow heat ex-
changer Counter flow heat exchanger(s) in alumini- um
8 Bypass duct Directs air around the counter flow heat ex-
changer
9 Bypass damper Bypass damper, provides option for temper-
ature regulation
10 Extract air filter Filters extract air
11 Supply air fan Blows air into the room
13 Door Sliding door/hinged door for inspection,
cleaning and service
14 Condensation tray Collects the condensate and drains it away
from the cross-flow heat exchanger to the
condensation outlet
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Pos. no. Part Function
15 Condensationoutletspigot Conducts condensate away from the con-
densation tray
1.5.2 Parts of the VEX unit
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 with backward curved blades for extract air
and supply air.
Counter flow heat
exchanger 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.
Filters The unit includes integral compact filters for both extract air and supply air.
Condensation outlet The condensation outlet is located on the VEX unit door (see previous drawing in
this section). The condensation tray is positioned internally in the door.
Bypass damper The unit has an integral variably adjustable bypass, allowing for precise control of
the supply air temperature.
1.6 Principal dimensions
1.6.1 VEX320C, general dimensions
Thefollowing dimensions apply to VEX320C, both with hinged doorsand sliding doors:
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VEX320C, Left
RD13067GB-02
1385
900
440
60
223
622
216
O
315
O
315
223
622
216
O315
O
315
2,2
1,1 1,2 2,1
418
95
DN32
Height, hinged door: 440 mm
Height, sliding door: 540 mm
Top view: VEX320C,
Left
RD13068GB-02
Supply
air 2,2
Extract air 1,1 Outdoor air 2,1
Exhaust
air 1,2
Seen from above
25
900
O
11
278
677850
278
677
32
50 1385 1447 50
345
95
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VEX320C, Right
RD13069GB-02
2,2 1,1
1,2
2,1
1385
900
440
60
O
315
O
315
223
622
O
315
216
418
223
622
216
95
O
315
DN32
Height, hinged door: 440 mm
Height, sliding door: 540 mm
Top view, VEX320C
Right
RD13070GB-02
Supply
air 2,2
Extract air 1,1
Outdoor air
2,1
Exhaust
air 1,2 Seen from above
278
677850 25
O
11
95
278
677
900
50 1447 50
32 1385
345
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1.6.2 Dimensional sketches, doors
Dimensional sketch,
hinged doors The following drawing applies to both Left and Right models:
1385
1085
RD13071-02
Dimensional sketch,
sliding doors The following drawing applies to both Left and Right models:
1385
540
RD13072-02
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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 upright and firmly fixed to a disposable pallet and packed in
clear plastic.
Remove transport
fittings Before fitting the unit:
●Remove transport bracket (1) and trans-
port stays (2)
●Carefully lower the VEX unit
2
1
RD12987-01
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 con-
nected 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 131 kg.
2.2 Transport
Transport Transport the VEX unit on the disposable pallet. Do not lift it with the spigots or
connection box.
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2.2.1 Passage through openings
VEX unit dimen-
sions The table 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
VEX320C (hinged doors) 1,505 mm 1,000 mm 440 mm
VEX320C (sliding doors) 1,505 mm 1,000 mm 540 mm
2.2.2 Internal transport with reduced weight
Weight reduction The unit's weight can be reduced during transport by removing the doors, fan units
and counter flow heat exchanger. The table below shows the how much weight can
be reduced by removing the various parts.
Parts Weights, VEX320C-1 Weights, VEX320C-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
Doors, 2 items at 14.5 kg = 29 kg 14.5 kg = 29 kg
Total weight, VEX320 128 kg 131 kg
Dismounting See section "Maintenance" for instructions for dismounting doors, fans and counter
flow heat exchanger and for removal of filters.
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3. Mechanical assembly
3.1 Positioning of unit
3.1.1 Mounting on ceiling
Dimensioning Ceiling mountings must be dimensioned from the unit's weight.
Mounting must be carried out in accordance with the Project Man-
ager's instructions.
Suspension The unit is designed for suspension from a ceiling with the doors
facing downwards - as described in the following. The unit must
not be used lying on the ground.
It is important that the VEX unit is suspended horizontally or slop-
ing towards the condensation tray, which collects condensate and
drains it away.
Assembly drawing
RD12957-03
1
2+3
Ø 8,5
Pos. Qty. Description Supplied
1 4 Suspension clamp (hot-galvanised flat iron), Ø8.5 mm
holes Yes
2 12 Screw, M8 (stainless steel) Yes
3 12 Washer Ø8 (stainless steel) Yes
Installation
Step Action
1 Fit the suspension fittings to the unit
2Fittheunitto theceilinginaccordance with theinstructionsfromthe Project
Manager.
3Check that the unit hangs horizontally or slopes towards the condensation
tray.
4 Clean and vacuum clean the VEX-unit to remove metal shavings, etc.
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3.1.2 Insulation using self-adhesive foam strip
Applies only to VEX
with hinged doors To ensure that the VEX's doors can be opened, the accompanying self-adhesive foam strip should be mounted on the duct closest to the the VEX. (See drawing).
Step Action Illustration
1Cutthe foamstrip into4
strips, each 1000 mm
long
RD12989-02
1
2
2 Remove the protective
paper from the rear of
the foam strip
3 Apply the foam strip to
the duct as shown on
drawing (1)
4 Insulate the duct (2) all
the way to the self-ad-
hesive foam strip
3.2 Condensation drain
Drain the condensation outlet into a floor gully or similar. The con-
densation 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.
Water trap The following drawing shows an example of how the drain from the condensation
outletcan be establishedand the correctdimensions for thewater trap. UseHC pipe
(HT, DN32, DIN4102)
50
30
min.500mm
RD12959-03
NB: The condensation outlet must be dismounted before the door can be opened. For
this reason the pipe layout must allow the HC pipe to be pulled out of the conden-
sation outlet.
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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
The VEX unit doors must be opened to allow servicing and cleaning.
Disconnect the power at the isolation switch before opening the doors.
5.1.1 VEX300C with hinged doors
How to open VEX
with hinged door
(V300CDHS)
1
RD12960-03
2
3
3
4
Step (no. see drawing) Action
1 Remove condensation outlet
2 Unscrew the bolts from the doors (M8 bolts, bit NV 6
mm):
3 Open the doors
4If wished, the doors can be removed by unscrewing the
hinge fittings
Space requirements See also section "Location requirements" for information on how much space is
needed to open the doors.
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