Exhausto VEX300 Series Instruction Manual

VEX308 EXact
Assembly and installation
Product information........................................ Chapter 1 + 4
Mechanical assembly..................................... Chapter 2
Electrical installation.......................................Chapter 3
Unit supplied with (factory fitted):
ePM10 60%--filter Extract
ePM1 55%--filter Outdoor
VEX308 with heatingcoil water
SMALL - HW308SE
LARGE - HW308LE
VEX308 with heatingcoil electrical 2,4 kW - HE30802E
Condensation pump, CONPUMP
CO2-sensor, CO2B
Humidity sensor, RHB
Motion sensor, PIRB
Webserver/EXact, WEBE
LSR308 Closing damper (outdoor)
Smoke detector, SDB
The following accessories are supplied
separately:
Operation panel, HMI
Closing damper for vertical exhaust, LS315
TIMERBUTTON2
pieces, Outer wall grilles, YGC Ø315
Serial no.:
Prod. order no.:
Sales order no.:
Original instructions
3004248-2021-05-07 VEX308 EXact2
EXHAUSTO A/S
Odensevej 76
DK-5550 Langeskov
Tel. [phone]
Fax [phone]
[email protected]
www.exhausto.dk

1. Product information
1.1. Location in room....................................................................................................5
1.1.1. Optimum location ............................................................................................ 5
1.1.2. Space requirements ........................................................................................5
1.2. Application............................................................................................................. 6
1.3. Designations used in these instructions.............................................................6
1.3.1. Simplified diagram............................................................................................6
1.4. Description............................................................................................................. 8
1.4.1. Construction of the VEX unit...........................................................................8
1.4.2. VEX unit, parts and materials...........................................................................9
1.5. Principal dimensions...........................................................................................10
Ceiling mounting - visible .............................................................................. 10
1.5.1. Partly integrated ceiling mounting.................................................................. 11
2. Mounting
2.1. Unpacking.............................................................................................................12
2.2. Wall mounting (accessories for some models).................................................12
2.2.1. Requirements for wall ................................................................................... 12
2.2.2. Instructions and warnings ............................................................................. 12
Wall mounting step by step ........................................................................... 12
2.3. Ceiling mounting..................................................................................................13
2.3.1. Ceiling requirements...................................................................................... 13
2.3.2. Instructions and warnings ............................................................................. 13
2.3.3. Ceiling mounting step by step .......................................................................14
2.4. Partly integrated mounting................................................................................. 14
2.5. Connection of condensation outlet....................................................................15
2.5.1. Condensation outlet guide channels (if condensation pump is mounted)......15
2.6. Connection of water heating coil (option)......................................................... 15
2.6.1. Connecting the water..................................................................................... 15
3. Electrical installation
3.1. Supply voltage and fuses....................................................................................16
3.1.1. Position of power socket................................................................................ 16
Maximum power consumption ...................................................................... 16
3.1.2. Permanent installation....................................................................................16
4. Technical data
4.1. Weight, corrosion class, temperature ranges, etc............................................17
4.2. Electrical data for unit without heating coil...................................................... 17
4.3. Data for unit with heating coil.............................................................................17
4.3.1. Electric heating coil........................................................................................ 17
4.3.2. Water heating coils.........................................................................................18
4.3.3. MVM motor valve .......................................................................................... 19
4.4. Condensate pump................................................................................................19
4.5. Compact filters.....................................................................................................19
4.6. Capacity diagram and diagram for specific power consumption................... 20
4.6.1. Capacity diagram........................................................................................... 20
4.6.2. Capacity diagram - mounting on "duct system" ............................................ 21
4.6.3. Specific power consumption, SFP ................................................................ 22
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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.
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.
Warnings:
Startup The unit must not be started up until it is fully mounted with door
and duct connections.
Opening the unit Do not open the service door until the supply voltage has been
disconnected (remove plug from socket) and the fans have stop-
ped.
Duct termination at
wall
RD13175-01
Mount a permanent protective mesh to the exhaust and outdoor
air connection, using a mesh size of max. 20 mm. For example,
use the EXHAUSTO outer wall grilles.
Information plate The VEX unit information plate
shows:
● VEX model (1)
● Production order no. (2)
1
2
NB: Always have the production number ready when contacting EXHAUSTO A/S.
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NB: Find the newest version of the publication by searching for the order number on
the EXHAUSTO website under Downloads
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.
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1. Product information
1.1 Location in room
1.1.1 Optimum location
As far as possible the unit should be located in the middle of the wall.
Avoid placing the VEX308 on the long side of narrow rooms.
1.1.2 Space requirements
RD13147-01
The sketch shows how much space is required under the unit for opening the door
and servicing. The dimensions at the sides of the unit indicate the minimum clear-
ance for optimum servicing conditions.
RD13146-01
1350Min
500Min 500Min
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1.2 Application
Comfort ventilation EXHAUSTO's VEX308 unit is used for comfort ventilation in frost-free single-room
locations. The VEX unit is designed for wall or ceiling mounting and must be used
as such.
Operating temperature range for unit see section "Technical data".
1.3 Designations used in these instructions
1.3.1 Simplified diagram
With integral water
heating coil, HCW
(top view)
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With integral elec-
tric heating coil,
HCE (top view)
Component Function Standard/accesso-
ries
HE30802E Electric heating coil Accessory
HW308SE/
HW308LE
Water heating coil Accessory
M1 Extract/exhaust air motor Standard
M2 Outdoor/supply air motor Standard
BP1 Bypass motor Standard
TE11 Temperature sensor, extract air Standard
TE12 Temperature sensor, exhaust air Standard
TE21 Temperature sensor, outdoor air Standard
TE22 Temperature sensor, supply air Standard
Tice Temperature sensor for ice detection in
exchanger
Standard
LSR Outdoor air closing damper with spring
return
Accessory
(Standard for HCW)
Automatic overpressure damper for hori-
zontal exhaust
Standard
LS (A) Closing damper for vertical exhaust Accessory
TSA70 Overheating protection, electric heating
coil (automatic reset)
Accessory
TSA90 Overheating protection, electric heating
coil (manual reset on HMI/web server)
Accessory
PIRB Motion sensor, integral Accessory
CO2B CO2 sensor, integral Accessory
RHB Humidity sensor, integral Accessory
SM Smoke detector Accessory
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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. Details of HCW
and HCE are viewed from below:
ECHWCH
3
2
14
RD13198-03
7 9
131517
6
5810
11
1214
16
Pos. Part Function
1 Water valve
2 Motor for water valve
3 Bleeder valve Bleeding of water system
4 MHCE Control system for electric heating coil
5 Ceiling bracket Bracket for ceiling mounting
6 Outdoor air filter Filters outdoor air
7 Fan unit For outdoor/supply air
8 Motion sensor, PIRB Motion sensor
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Pos. Part Function
9 CO2 sensor or humidi-
ty Sensor, RHB
Sensors for on-demand control
10 Extract air filter Filters extract air
11 Socket Connection for HMI service cable
12 Control system, termi-
nal block
Control system, connection of accessories
13 Fan unit For extract/exhaust air
14 Guide channel for con-
densation outlet (wall-
mounted unit)
Used when condensation outlet is fitted
15 Condensation tray Collects condensate from counterflow heat ex-
changers. Leads any condensate via condensate
pump (optional/accessory).
16 Smoke detector Smoke detector mounted in outdoor air
17 Counter flow heat ex-
changer
Two aluminium counter flow heat exchangers
1.4.2 VEX unit, parts and materials
Cabinet The exterior of the cabinet is made of Aluzinc® and the cabinet is insulated with
20 mm sound insulation material.
Fans The unit contains two centrifugal fans with EC motors 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 on both extract air and supply air sides,
the ePM10 60% and ePM1 55% filter respectively.
Condensation out-
let
The condensation tray is located under the counterflow heat exchangers. There
will only be a condensation outlet from the condensation tray if a condensation
pump has been purchased. See also section on connection of condensation out-
let.
Bypass damper The unit has a variably adjustable bypass damper for temperature regulation and
de-icing of counterflow heat exchangers during operation. See operating and serv-
ice instructions for further description of de-icing.
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1.5 Principal dimensions
Ceiling mounting - visible
49145
64
270
2072
226
277 277
195
183
O
315
O
315
500
83947
RD13126-02
A
A
A-A
2070
2092
55
70
200267 1603
1576
784
O
8,5
B
B
B-B
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1.5.1 Partly integrated ceiling mounting
49145
195
183
O
315
O
315
500
47
RD13446-03
A
A
A-A
2070
2092
142
70
200267 1603
1576
784
O
8,5
B
B
B-B
2072
1006
34
226270
64
277
250 - 280
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2. Mounting
2.1 Unpacking
Standard delivery ● VEX308 unit
● Housing panels packed separately
● Wall brackets premounted on VEX (accessories on some models)
● Ceiling brackets, supplied separately
Any included ac-
cessories
See information about included accessories on front page of these instructions.
2.2 Wall mounting (accessories for some models)
2.2.1 Requirements for wall
RD13173-01
For wall mounting, it is a requirement that the wall is:
● flat
● vibration-resistant
● plumb (max. 4 mm per metre)
● in a material suitable for safe mounting of the unit
2.2.2 Instructions and warnings
Dimensioning Wall mountings must be dimensioned from the unit's weight.
Mounting must be carried out in accordance with the Project
Manager's instructions.
For wall mounting the two front ceiling brackets should also be
used.
Suspension The unit must be suspended with the door facing the floor. The
unit must not be mounted in any other way.
The housing panels must be fixed with the accompanying
screws.
Wall mounting step by step
RD13173-01
See the attached installation guide (3004368).
Step 1-11 Action
1 Dismount the wall bracket from the VEX, as it will be needed as a
drilling template.
2 Ensure the template is held level and mark off the holes for the wall
bracket and for the ducts.
3 Drill all marked holes. The mounting method, hole sizes etc. will
depend on the material of the wall. Holes for spigots in the wall
must be formed with an outward fall of 1-2% to avoid driving rain or
condensate entering the VEX.
4 Mount and insulate the duct penetrations in the wall.
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Step 1-11 Action
5 Mount the outside duct grilles.
6 Mount the wall bracket on the wall.
7
RD13270_01
Lift the VEX into place with suitable lifting equipment (e.g. an elec-
tric stacker), protecting the door from scratches with a piece of
cardboard or similar between the door and the lifting equipment.
See unit weight in the technical data section.
8 Check that the VEX is level and tighten all bolts in wall brackets.
Also fix the VEX to the front ceiling brackets.
9 Connect the condensation outlet if a condensation pump is moun-
ted in the condensation tray. See section "Connecting the conden-
sation outlet".
10
Mount the housing panels:
● Attach the housing panel at the top to the black brackets
● Gently press the panel into place
● Tighten the bracket screws starting at the bottom of the hous-
ing panel - Important for safety reasons!
11 Connect the plug to the socket, see section on electrical installa-
tion.
NB The dimensions of the wall template will match when held right up to the ceiling.
2.3 Ceiling mounting
2.3.1 Ceiling requirements
RD13176-01
When fitting the unit to a ceiling, the ceiling must be:
● flat
● vibration-resistant
● horizontal
● designed to bear the weight of the unit
2.3.2 Instructions and warnings
Dimensioning Ceiling mountings must be dimensioned from the unit's weight.
Mounting must be carried out in accordance with the Project
Manager's instructions.
Suspension The unit must be suspended with the door facing the floor. The
unit must not be mounted in any other way.
The housing panels must be fixed with the accompanying
screws.
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2.3.3 Ceiling mounting step by step
RD13176-01
See the attached installation guide (3004368).
Step 1-14 Action
1*) Open the door and dismount the exhaust fan.
2*) Turn the exhaust fan so the exhaust is at the top of the VEX and
retighten. Rotate the air guide plate on the fan by 60°.
3 Remount the door and turn the unit to lie on the door (protect door
from scratches with cardboard or similar between the door and the
substrate)
4*) Move the two spigots to the top of the VEX by swapping the spi-
gots at the rear of the VEX with the cover plates on the top.
5 On the ceiling measure the centre point where the VEX is to go
and mark off.
6 Mark the holes for the ceiling brackets and the holes for the ducts.
7 Drill all marked holes. The mounting method, hole sizes etc. will
depend on the material of the ceiling.
8 Mount and insulate the duct penetrations in the ceiling.
9 Mount the cowls on the roof.
10
RD13270_01
Lift the VEX into place with suitable lifting equipment (e.g. an elec-
tric stacker), protecting the door from scratches with a piece of
cardboard or similar between the door and the lifting equipment.
See unit weight in the technical data section.
11 Check that the VEX is level and fix the unit by tightening all ceiling
brackets.
12 Connect the condensation outlet if a condensation pump is moun-
ted in the condensation tray. See section "Connecting the conden-
sation outlet".
13
Mount the housing panels:
● Attach the housing panel at the top to the black brackets
● Gently press the panel into place
● Tighten the bracket screws starting at the bottom of the hous-
ing panel - Important for safety reasons!
14 Connect the plug to the socket, see section on electrical installa-
tion.
*) To be carried out in the event that the VEX has not been ordered with exhaust/
outdoor air connection via the ceiling.
2.4 Partly integrated mounting
Installation Installation of the partly integrated VEX is carried out as described in sections 2.2.
and 2.3.
Access to control
system
When carrying out installation, ensure there is access to the control system. EX-
HAUSTO recommends that the part of the ceiling next to the control system can
be removed.
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NB The partly-integrated VEX extracts a small amount of air above the suspended
ceiling, which can cause the filter to soil more quickly than usual. EXHAUSTO rec-
ommends leaving a 10 mm gap between the cabinet and the suspended ceiling.
2.5 Connection of condensation outlet
2.5.1 Condensation outlet guide channels (if condensation pump is mounted)
Wall-mounted VEX On wall-mounted units the condensation outlet is positioned with the outlet pass-
ing through the exhaust duct.
Ceiling-mounted
VEX
On ceiling-mounted units the condensation outlet is led through the internal guide
channels (rubber sleeves) out of the unit to the drain.
The penetrations in the unit must be executed so as to retain air
tightness.
Condensate pump
(optional/accesso-
ry)
For technical data, see final section.
2.6 Connection of water heating coil (option)
2.6.1 Connecting the water
Valves for water
connection
It is recommended that shut-off valves are mounted on both water connections to
enable the flow to be interrupted for servicing.
The dimensioning of valves, pipes, etc. and the connection of the
water heating coil must always be carried out by authorised fit-
ters in accordance with applicable regulations and legislation.
Position of bleeder
valve on VEX
See keyed drawing for position of internal bleeder valve.
Automatic bleeder
valve
If the water connection is executed with vertical riser, so the heating coil in the
VEX308 is the highest point in the pipe system, it is recommended that an auto-
matic bleeder valve is fitted at the highest point on the supply and return pipes.
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3. Electrical installation
3.1 Supply voltage and fuses
3.1.1 Position of power socket
The supply cable is fitted with a 230V plug and can thus be connected to a power
socket.
Fit the power socket for the supply voltage close to the VEX unit and
preferably within the easy reach of users of the room.
Maximum power consumption
VEX Maximum power consumption
without heating coil 575W - (2.5A)
with heating coil 575W - (2.5A)
with electric heating coil 2975W - (12.9A)
Fuses The installation must be protected with a max. 16A fuse.
3.1.2 Permanent installation
If the plug is cut off and the cable mounted in a permanent installa-
tion, an isolation switch must be established at the time of installa-
tion.
Permanent installation must be carried out by an authorised electri-
cian.
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4. Technical data
4.1 Weight, corrosion class, temperature ranges, etc.
Weight
Door 25.5 kg
Counter flow heat exchanger 2 x 11 kg
Motor section 2 x 6.0 kg
Total weight 184.5 kg incl. HW308SE
Partly integrated 203.0 kg incl. HW308SE
Corrosion class,
cabinet Corrosion class Corrosion class C4 in accordance with EN ISO 12944-2
Temperature ranges
Outdoor air temperature -40 - +40°C
Ambient temperature (operating) -30 - +40ºC
Ambient temperature when not in operation (storage, transport) -40 - +60ºC
The temperature ranges given are dependent on the type of installation, humidity,
airflow, the balance between airflows, ducts and insulation and room temperature.
If using pre-heating coils, the ambient temperature can be reduced.
At temperatures below -25˚C, use of a thermostatically controlled heater in auto-
mated control box is recommended.
4.2 Electrical data for unit without heating coil
Voltage 1 x 230 V+N+PE
Maximum output 575 W
Maximum power consumption 2.5 A
4.3 Data for unit with heating coil
4.3.1 Electric heating coil
Electrical data for
VEX with electric
heating coil
HE30802E
Voltage 1 x 230 V+N+PE
Maximum output, HE30802E 2975 W
Maximum power consumption 12.9 A
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Data, thermal cut-
out Thermal fuse, TSA70 70 ℃
Thermal fuse, TSA90 90 ℃
Contact type NC (Normally closed)
Maximum load 1.6 A @ 24 V DC
NB Motors and heating coils may not be interrupted/switched off via OH70 and OH90
4.3.2 Water heating coils
Electrical data for
VEX with water
heating coil HCW Voltage 1 x 230 V+N+PE
Maximum output 575 W
Maximum power consumption 2.5 A
Water heating coil
data Data HCW SMALL HCW LARGE
Test pressure 3000 kPa 3000 kPa
Max. operating pressure 1000 kPa 1000 kPa
Number of rows of pipes 1 2
Number of circuits 1 1
Face dimensions (HxW) 0.140 x 0.960 0.140 x 0.960
Pipe connection DN15 (½") DN15 (½")
Fin spacing 1.6 mm 2.1 mm
Weight without fluid 6.9 kg 7.7 kg
Water content 0.6 litre 1.1 litre
Permissible media temperature 5..0.95℃5..0.95℃
Output, KVS mv.
Surface size Airflow Outdoor temp./RH Output Supply air temp. qwΔPsurface KVS
(m3/h) / (l/s) (°C/%) (kW) (°C) (l/h) (kPa)
HCW SMALL 750/208 -12/80 1,4 21 56 0,2 0,63
750/208 -20/85 1,7 21 72 0,3 0,63
400/111 -12/80 0,7 22 31 0,1 0,63
400/111 -20/85 0,8 21 33 0,1 0,63
HCW LARGE 750/208 -12/80 3,0 28 131 1,3 0,63
750/208 -20/85 3,3 27 143 1,6 0,63
400/111 -12/80 1,8 30 77 0,5 0,63
400/111 -20/85 1,9 30 84 0,6 0,63
Conditional upon: Supply temperature of water tF= 50°C and ΔT = 20K.
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4.3.3 MVM motor valve
Valve KVS 0.63
Test pressure 1600 kPa
Max. differential pressure 200 kPa
Permissible media temperature 5-110°C
The valve will remain permanently open if the differential
pressure is over
200 kPa
Motor KVS 0.63
Permissible ambient temperature -30 to +50°C
Ingress protection, in accordance with IEC IP40
Time taken to open/close 34 s
Power supply (50/60Hz, AC/DC) 24VAC ±20%
24 VDC ±20%
Regulation 0–10 VDC
4.4 Condensate pump
Condensate pump
Maximum power consumption 16W
Maximum lifting height 5.0m
Hose dimension dia. 4/8 mm
4.5 Compact filters
Filter data, VEX308,
filter data according
to ISO16890 Data Unit VEX308
ePM10 60% Coarse 60% ePM1 55%
Dimensions: h
x w, 1 item
per air direc-
tion
mm 395 x 350 470 x 455 455 x 445
Thickness of
compact filter mm 48 10 48
Filter area m20,6 0,18 2,7
Temperature
resistant to °C 70 100 70
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4.6 Capacity diagram and diagram for specific power consumption
4.6.1 Capacity diagram
Read control volt-
age
2.3 MC parameters
Supply air:
Maximum
Set point
Minimum
Extract air:
Maximum
Set point
Minimum
10.0V
5.6V
1.4V
10.0V
5.6V
1.4V
When an EXact control panel (HMI) is connected to the VEX unit, the control volt-
age can be read from menu 2.3 and thereby give a reasonable reading of airflow
on the diagram. Conditional upon: 750 m3/h at 35 Pa.
1) Visible unit max. 750 m3/h
2) Partly integrated unit max. 650 m3/h
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