Exhausto VEX100 Series User manual

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. [phone]
Fax [phone]
[email protected]
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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Pos. Function
16 Closing damper LS Closing damper – exhaust air, LSA (accessory)
17 Spigot 1.2.A Extract air spigot. The spigot can also be positioned
on the top of the air handling unit (1.2.B)
18 Connection box Positioning of terminal board for electrical connec-
tion
19 Extraction plate Positioning of motor controls
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1.4.2 Vertical 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,B 2,1,B
1,2,B
2,2,B
13
4
5
6
13
16
9
17
11 12
RD11764-02
7
8
10
15
2
14
18
1920
1,1,B
2,1,B
1,2,B 2,2,B
13
16
17
1112
10
15
4
5
6
9
7
8
123
18
14
19 20
RD11765-02
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Pos. Part Function
1 Outdoor air filter Filters outdoor air
2 Bypass damper For operation with heat recovery, the bypass
damper is closed so that the air passes through
the crossflow heat exchanger. For bypass opera-
tion, the damper is open, and the air bypasses
the heat exchanger
3 Condensation tray Collects the condensate and drains it away from
the crossflow heat exchanger to the condensa-
tion outlet.
4 Condensation outlet Channels condensate to the drain
5 Extract air filter Filters extract air
6 Spigot 1.1.B Extract air spigot
7 Measurement socket Measurement socket for pressure loss across
extract air filter
8 Crossflow heat exchanger Transfers heat from extract air to supply air
9 Water heating coil with bleed screw Heats supply air if heat recovery is insufficient.
10 Spigot 2.2.B Supply air spigot. The spigot can also be posi-
tioned on the top of the air handling unit (2.2.A).
11 Supply air fan For outdoor air/supply air
12 Extract air fan For exhaust air/extract air
13 Spigot 1.2.B Extract air spigot The spigot can also be posi-
tioned on the top of the air handling unit (1.2.A).
14 Closing damper LS Closing damper – exhaust air, LSA (accessory)
15 Measurement socket Measurement socket for airflow calculation
16 Connection box Positioning of terminal board for electrical con-
nection
17 Extraction plate Positioning of motor controls
18 Closing damper LS Closing damper, outdoor air, LSF (accessory)
19 Spigot 2.1.B Outdoor air spigot The spigot can also be posi-
tioned at the bottom of the air handling unit
(2.1.A)
20 Measurement socket Measurement socket for pressure loss across
outdoor air filter
1.4.3 Parts of the VEX unit
Cabinet The inside and outside of the cabinet are made of Aluzinc® The cabinet has been
insulated with 50 mm mineral wool.
Fans The unit contains two centrifugal fans with backward curved blades for extract air
and supply air.
Crossflow heat ex-
changer
The crossflow heat exchanger in the unit is mounted with a modulating bypass
damper. The crossflow heat exchanger can be removed for cleaning.
Filters The unit includes integral panel filters for both extract air and supply air.
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1.5 Principal dimensions, Horizontal VEX
VEX150H, Left The following drawing gives the principal dimensions:
1,2,A
2,2,A
2,1,A
1,1,A
MN
N
M
1,1,A
2,2,A
1,2,A
2,1,A
2,1,B1,2,B
2,2,B
62 1600 62
325 265
325
12
337
887
1212 62
318
518
O
400
O
400
418
785
835*
12
418
O
400
½"
DN32
RD10200-02
602 426
95**
62
318
593 122
602
418
O400
307
943
391
34
518
NB The drawing shows all of the spigot positioning options.
* Allow a distance for service in front of the unit equivalent to the unit depth.
** Allow a min. of 300 mm free height for service.
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VEX150H, Right The following drawing gives the principal dimensions:
1,1,A
DN32
2,1,A
1,1,A
O400
2,1,A
418
O
400
418
418
391
34
62
265
785
835*
2,1,B 1,2,B
1600
426
95**
2,2,B
122
12
602
307
943
62
325
602
2,2,A
1,2,A
½"
325
00
O
4
1,2,A
2,2,A
12
337
887
1212
62
518
O
400
62
318
593
518
318
MN
N
M
RD10207-02
NB The drawing shows all of the spigot positioning options.
* Allow a distance for service in front of the unit equivalent to the unit depth.
** Allow a min. of 300 mm free height for service.
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1.6 Principal dimensions, Vertical VEX
VEX150V, Left The following drawing gives the principal dimensions:
2,2,A
1,2,A
2,1,A
N
M
M
N
1,2,A
O
400
2,2,A
2,2,B 1,2,B
62
1,1,B 2,1,B
518
325
518
318
O
400
O
400
318
2,1,A
785
835*
½"
RD10202-02
62 1200 62
391
931
418
36
1287
14
279
1287
584 426
304
1614
62
875
594
716
590
95**
DN32
NB The drawing shows all of the spigot positioning options.
* Allow a distance for service in front of the unit equivalent to the unit depth.
** Allow a min. of 300 mm free height for service.
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VEX150V, Right The following drawing gives the principal dimensions:
N
M
N
M
RD10204-02
00
62
2,1,A
O
4
1,2,A
1,2,B
62
2,1,B
2,1,A
½"
14
279
1287
584 426
62
O
1,2,A
400
318
594
716
621200
391
931
2,2,A
2,2,B
1,1,B
418
36
1287
304
1614
2,2,A
518
325
O
785
835*
875
518
318
400
590
95**
DN32
NB The drawing shows all of the spigot positioning options.
* Allow a distance for service in front of the unit equivalent to the unit depth.
** Allow a min. of 300 mm free height for service.
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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.
2.2 Transport
Transport Transport the VEX unit on the disposable pallet. Do not lift it with the spigots or
connection box.
2.2.1 Transport of Horizontal air handling units
Transport methods Transport the VEX unit in one of the following ways:
Method Drawing
Manual transport:
Lifting brackets for manual trans-
port can be fitted as shown on
the drawing:
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Method Drawing
Using pallet truck or fork-lift
truck:
Lift the VEX unit on the disposa-
ble pallet.
IMPORTANT: If the disposable
pallet cannot be used, the forks
on the lifting equipment must be
long enough to prevent damage
to the bottom of the unit.
RD10248-01
Crane:
Never lift the VEX
unit with the lifting
brackets by using a
crane.
Use straps and lifting yokes to
prevent damage to the unit.
RD13391-01
2.2.2 Transport of Vertical air handling units
Transport methods Transport the VEX unit in one of the following ways:
Method Drawing
Manual transport:
Lifting brackets for manual trans-
port can be fitted as shown on
the drawing:
RD11116-02
RD11117-02
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Method Drawing
Using pallet truck or fork-lift
truck:
Lift the VEX unit on the disposa-
ble pallet.
IMPORTANT: If the disposable
pallet cannot be used, the forks
on the lifting equipment must be
long enough to prevent damage
to the bottom of the unit.
RD10536-02
Crane:
Never lift the VEX
unit with the lifting
brackets by using a
crane.
Use straps and lifting yokes to
prevent damage to the unit.
RD13392-01
Weight For information about the weight of the unit, see the section "Technical specifica-
tions".
2.2.3 Passage through openings
Height Horizontal VEX: 1,307 mm + any spigot in bottom (+62 mm).
Vertical VEX: 1,612 mm + any spigot in top (+62 mm) and bottom (+62 mm).
Width The list below shows how wide the opening has to be for the VEX unit to pass
through:
If the opening width is* Then
less than 785 mm the unit will not pass through.
785–835 mm remove doors, see relevant section.
greater than 835 mm the unit can pass through.
* Measurements are based on the exact dimensions of the air handling unit.
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