Exhausto VEX300 Series User manual

VEX370H
Mechanical Assembly
EXact2 control system
Product information........................................Chapter 1 + 6
Mechanical assembly.....................................Chapter 2 + 3
Electrical installation.......................................Chapter 4
Maintenance...................................................Chapter 5
Unit supplied with (factory fitted):
The following accessories are supplied
separately:
M5-compact filter, FP
Bag filter, FB
F7-compact filter, FP
OD - roof for outdoor
Mounting base, (unassembled)
Webserver
MLON
HCW370I - Integrated heating coil (water)
HCW-heating coil (water), duct-fitted
Motor valve, MVM ______Kvs-value
Motorvalve outdoor, MVM-OD
(partially mounted)
DX cooling/heating coil
CCW-cold water coil
Closing damper, LS600x1200, (LSA exhaust)
Closing damper, LS600x1200, (LSF outdoor)
Closing damper, LSR600x1200, with
spring-return (LSAR exhaust)
Closing damper, LSR600x1200, with
spring-return (LSFR outdoor)
pieces, Fire thermostat, BT40
pieces, Fire thermostat, BT50
pieces, Fire thermostat, BT70
pieces, control panel, HMI
pieces, Motion sensor, MIO-PIR
pieces, Constant pressure control, MPT-DUCT
Humidity sensor, MIO-RH
CO2-sensor, MIO-CO2-DUCT
CO2-sensor, MIO-CO2-ROOM
Temperature sensor, MIO-TS-DUCT
Temperature sensor, MIO-TS-ROOM
Control for external cooling unit, MXCU
Serial no.:
Prod.order no.:
Sales order no.:
Original instructions
3004793-2016-10-03 VEX370H EXact2
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
Model overview................................................................................................6
1.1.1.Designations used in these instructions...........................................................7
1.2. Application.............................................................................................................8
1.3. Location requirements..........................................................................................8
1.3.1.Space requirements.........................................................................................9
1.3.2.Requirements for underlying surface...............................................................9
1.3.3. Outlet...............................................................................................................9
1.3.4.Requirements for duct system.........................................................................9
1.4. Description...........................................................................................................10
1.4.1.Design............................................................................................................10
1.5. Main aim................................................................................................................12
1.5.1.Dimensional drawing......................................................................................12
2. Handling 2.1. Unpacking.............................................................................................................15
2.2. Transport..............................................................................................................15
2.2.1. Passage through openings ..........................................................................15
2.2.2.Internal transport with reduced weight...........................................................16
2.2.3.Disassembly of integrated heating coil, HCW370I ........................................19
3. Mechanical assembly
3.1. Installing the unit.................................................................................................20
3.1.1.Assembly instructions....................................................................................20
3.1.2.Step 1–4.........................................................................................................21
3.2. Condensation drain.............................................................................................26
3.2.1.Establishment of condensation outlet............................................................26
3.3. Integrated water heating coil..............................................................................27
3.3.1.Principles for connecting the water heating coil.............................................27
3.3.2.MVM valve.....................................................................................................29
4. Electrical installation
4.1. Electrical installation...........................................................................................30
5. Maintenance 5.1. Operating readings via the HMI panel................................................................31
5.2. Maintenance Schedule........................................................................................31
5.3. Hygiene.................................................................................................................32
5.4. Service..................................................................................................................32
5.4.1.Filter change..................................................................................................32
5.4.2.Removing the counter flow heat exchangers.................................................32
5.4.3.Servicing and cleaning...................................................................................36
6. Technical data 6.1. Weight, corrosion class, temperature ranges...................................................38
6.2. Compact filters.....................................................................................................39
6.3. Bag filters.............................................................................................................40
6.4. Integrated water heating coil HCWi....................................................................41
3004793-2016-10-03
2/44

6.4.1.MVM motor valve ..........................................................................................41
6.5. Capacity diagram.................................................................................................42
6.5.1.Capacity diagram, ventilation with heat recovery...........................................42
6.5.2.Capacity diagram, ventilation with bypass operation.....................................43
6.6. Ordering spare parts...........................................................................................43
3004793-2016-10-03
3/44

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.
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
Opening the air han-
dling unit Do not open the service doors until the supply voltage has been disconnected at the isolation switch and the fans have stopped.
Theisolationswitchispositionedontheleftsideoftheconnection
box on top of the unit.
RD13497-01
ON OFF
3004793-2016-10-03
4/44

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 (in
accordance with EN294).
Lock the air han-
dling unit during op-
eration
The VEX unit must always be locked
during operation:
●Use the cylinder lock in the handle.
Remember to remove the key from
the lock.
●Or use a padlock. Use the handle’s
built-in padlock fixture.
Lock
Padlock fitting
Rating plate The VEX unit rating plate shows:
●VEX model (1)
●Production order no. (2)
1
2
NB Always have the production number ready when contacting EXHAUSTO A/S.
3004793-2016-10-03
5/44

1. Product information
1.1 Designations used in these instructions
Model overview
Elements Explanation
RD12767-01
Fan
RD13531-01
Compact filter
RD12762-01
Bag filter
1,1,A or B Extract air spigot
NB: In cases where the unit has two spigots
(extract air/flue gases), the filter is always loca-
ted by the 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
RD13532-01
1,1,A
2,1,A
2,2,A
1,2,A
1,1,B
2,2,B
1
2
3004793-2016-10-03 Product information
6/44

Fan placement Air directions
RIGHT
RD13533-01
1,1,A
2,1,A
2,2,A
1,2,A
1,1,B 2,2,B
1
2
NB Spigot location B option not available with outdoor models.
1.1.1 Designations used in these instructions
The simplified diagram shows a VEX unit with LEFT fan placement.
Component Function
BP1 Bypass damper extract air/exhaust air
BP2 Bypass damper outdoor air/supply air
BP3 Bypass shut-off dampers supply air
BT40/BT50 Fire thermostat, 40℃/50℃(extract air)
BT70 Fire thermostat 70℃(supply air)
MC1 Motor control, motor 1 (extract air)
MC2 Motor control, motor 2 (supply air)
HMI Control panel
HCWI Integrated water heating coil
LS Closing damper, outdoor air/exhaust air
M1 Extract air motor
M2 Supply air motor
MIO-CO2-DUCT CO2sensor, duct
MIO-CO2-ROOM CO2sensor, room
MIO-PIR PIR sensor
MIO-RH-ROOM Humidity sensor
3004793-2016-10-03 Product information
7/44

Component Function
MIO-TS-ROOM Temperature sensor, room
MIO-TS-DUCT Temperature sensor, extract air (external)
MPT1, P1 Airflow control, extract air
MPT1, P2 Filter monitor, extract air
MPT2, P1 Airflow control, supply air
MPT2, P2 Filter monitor, outdoor air
MPT3, P1 Ice detection
MPT-DUCT Pressure transmitter, constant pressure regulation
TE11 Temperature sensor, extract air
TE12 Temperature sensor, exhaust air
TE21 Temperature sensor, outdoor air
TE22 Temperature sensor, supply air
1.2 Application
Comfort ventilation EXHAUSTOVEX is usedfor comfortventilation tasks.Operating temperaturerange
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 air handling unit is designed for indoor fitting. The air handling unit can be or-
dered for outdoor installation (accessory Outdoor, OD).
3004793-2016-10-03 Product information
8/44

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 filters.
2200
415
1366
RD13499-01
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.
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 Aductbendmaybefittedimmediatelyafterthe unit, because the airflow inthespigot
has a uniformly moderate speed profile, which results in negligible system pressure
loss.
3004793-2016-10-03 Product information
9/44

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 pro-
tective net to the spigots with a maximum mesh width of 20 mm.
1.4 Description
1.4.1 Design
Layout drawing, Left
model The drawing below illustrates the construction of the unit, without doors: The drawing shows compact filters.
1
3
45678910
12 13 15 1714 18 20
2,1,A 1,2,A
1,1,A
2,2,A
RD13500GB-01
2
11 16
1,1,B/ue gas
2,2,B
19
Layout drawing,
Right model The drawing below illustrates the construction of the unit, without doors: The drawing shows compact filters.
3004793-2016-10-03 Product information
10/44

13
1095 6 7 84
3
12
1
1517 141820
2,1,A
1,2,A
1,1,A
2,2,A
RD13501GB-01
2
1116
1,1,B/ue gas 2,2,B
19
Pos. no. Part Function
1 Spigot 1,1,A Extract air spigot The spigot can also be
positioned on the top of the unit (1,1,B).
Does not apply to units designed for out-
door fitting
2 Spigot 1,2,A Exhaust air spigot
3 Closing damper LS Closing damper, exhaust air, LSA (acces-
sory).
4 Fan unit, exhaust air Removes "stale" air
5 Motor control, extract air fan Variably adjusts fan
6 MPT1 Measurement of pressure in extract air
duct
7 Counterflow heat exchanger 6counterflowheatexchangersmadefrom
aluminium, conduct the heat from extract
air to supply air
8 Outdoor air filter Filters outdoor air.
9 Spigot 2,1,A Outdoor air spigot
10 Closing damper LS Closing damper, outdoor air, LSF (acces-
sory).
11 Integrated heating coil Heats supply air if heat recovery is insuffi-
cient (accessory).
12 Spigot 2,2,A Supply air spigot. The spigot can also be
positioned in the top of the unit (2,2,B).
Does not apply to units designed for out-
door fitting
13 Fan unit, supply air Blows air into the room
14 Motor control, supply air fan Variably adjusts fan
15 MPT2 Measures pressure in supply air duct
3004793-2016-10-03 Product information
11/44

Pos. no. Part Function
16 Connection box Connection box for supply voltage, exter-
nal ventilation components, HMI panel,
BMS and Ethernet
17 Connection box Cover plate
18 HMI panel Operation of the control system
19 MPT3 Measures pressure loss across the coun-
ter flow heat exchanger
20 Extract air filter Filters extract air.
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 section
"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. In the case of summer operation
without heat/cold recovery, both outdoor air and extract air are directed around the
heat exchanger to reduce energy consumption.
1.5 Main aim
1.5.1 Dimensional drawing
The sketches show compact filters.
3004793-2016-10-03 Product information
12/44

VEX370H, Left
MN
RD13485-01
100 3)
1904
MN
1,2,A
1,1,A
2,2,A
2,1,A
2,2,A
2,1,A
1,1,A
1,2,A
DN32
1)
2)
200
1500880
200
984
1366
1200
200
300 600
1082
1800
600
318
1100
600
600
1200
3851104
24
83
600 600 234
880
83
120056 1200 56
20 3268 20
839
274
142
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
3) The legs under the VEX unit can be adjusted for height between 55mm and
110mm.
See "Space Requirements" section.
3004793-2016-10-03 Product information
13/44

VEX370C, Right
RD13490-01
MN
MN
1100 600
1,1,A
1,2,A
20
24
83
56
318 600
234
880
984
600
1200
1,2,A
1,1,A
1200
200
DN32
1500
3268
385
1)
1366
200
2,2,A
2,1,A
1200
1200
1104
600
880
200
83
56
142
300 600
273
2,1,A
20
1082 600
839
1800
2,2,A
2)
1904
100 3)
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
3) The legs under the VEX unit can be adjusted for height between 55mm and
110mm.
See "Space Requirements" section.
3004793-2016-10-03 Product information
14/44

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 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.
2.2 Transport
2.2.1 Passage through openings
The sections' princi-
pal dimensions Measurements are based on the exact dimensions of the VEX unit. The VEX unit is shown with compact filters.
1500
1153
1700
1704
1366
900
RD13504-01
3004793-2016-10-03 Handling
15/44

Width - fan sections The list below shows how large an opening has to be for the fan sections to pass
through:
If the opening width is Then
Less than 900 mm The unit will not pass through
Between 900 and 1,153 mm For fan section with integrated heating coil:
●disassemble the integrated heating coil
as described in the section "Disassembly
of integrated heating coil".
Greater than 1153 mm The unit can pass through
Width - heat ex-
changer section The list below shows how large an opening has to be for the heat exchanger section to pass through:
If the opening width is Then
Less than 1,366 mm passage is not possible, unless the VEX is
constructed and delivered in a split version
(agreed at time of order). See separate in-
structions.
Greater than 1,366 mm The unit can pass through
VEX370 supplied in
split version VEX370 can be ordered as a SPLIT 1 or SPLIT 2 model:
Model Conditions
SPLIT 1 ●VEX370 is supplied with normal fan sec-
tions, but the heat recovery section can
be separated for transport through door
openings of 900 x 2000 mm
●The VEX is assembled and joints sealed
on site by the installer in accordance with
the supplied instructions
SPLIT 2 ●VEX370 is supplied in assembed state
but without joint sealing
●The VEX is ready for disassembly, trans-
port into the building, reassembly and
joint sealing by certified personnel
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 220 kg Fan section, empty cabinet 150 kg
Door 24 kg
Fan unit 40 kg
3004793-2016-10-03 Handling
16/44

Section Subcomponents Weight
Compact or bag filters, 3 items of
2 kg weight 6 kg
Exchanger section, 1 x 430 kg Exchanger section, empty cabinet 285 kg
Counter flow heat exchangers, 6 x
19 kg 114 kg
Doors, 2 x 15.5 kg 31 kg
Integrated heating coil HCWI, 58
kg
Base, 1 x 90 kg
Total weight VEX370 unit 1018 kg
Removing the serv-
ice doors To remove the service doors:
RD13502-01
AB
Detail A
Detail B
1
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 (Note - weight 23.5 kg).
3004793-2016-10-03 Handling
17/44

BHow to remove the doors (2 in no.) to the heat exchanger sections:
●Open the door
●Unscrewthe doorhinge from the front panel (1) and take the door
off.
To remove the fan
unit
1
RD13503-01
DETAIL A
2
A
Step Action
1Remove the fixing screws (1) on the sliding rail (out towards the operating
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.
5Remove 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 40 kg.
3004793-2016-10-03 Handling
18/44

Removing the coun-
ter flow heat ex-
changers
See section "Servicing"
2.2.3 Disassembly of integrated heating coil, HCW370I
1
2
RD13525-01
RD13526-01
3
Step Action
1 Support the heating coil before disassembling it.
NB: The heating coil weighs 58 kg. - make sure there are at least two
persons to lift the coil off.
2 Open the door of the fan section nearest the heating coil and release the
two snap locks (1) inside the VEX.
3 Then release the two snap locks (2) on the top
4 The heating coil can now be lifted from the four guide pins (3).
3004793-2016-10-03 Handling
19/44

3. Mechanical assembly
3.1 Installing the unit
3.1.1 Assembly instructions
The assembly of VEX370 is divided into 4 steps as shown below, see the following
sections for a detailed description of each step.
Step 1, assemble the base
RD13511-01
A
A
B
B
C
C
D
D
E
EF
F
F
F
G
G
G
H
Step 2, push the sections onto the base Step 3 - 4, tighten the VEX section joints
RD13512-01
1
1
22
RD13513-01
Base The unit must be assembled on the base – this is essential to en-
sure its airtightness.
Dimensional draw-
ing
RD13576-01
1252 1312
1608 1608
3216
3266
3004793-2016-10-03 Mechanical assembly
20/44