Vectaire EVO90DC Assembly instructions
12
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The Vectaire EVO90DC heat recovery system provides whole house
mechanical ventilation to living areas, bedrooms, kitchen and bath-
rooms. It extracts stale, contaminated air from kitchens, utility rooms
and bathrooms, and uses the heat recovered from this air to warm
fresh, incoming air to create a flow of fresh, filtered air throughout the
dwelling. The extract and intake air streams are separated to avoid
contamination.
The system will operate continuously to create a stable, comfortable,
healthy environment avoiding the use of excessive energy and saving
heat already generated.
The heat recovery unit will generally be installed in the loft of a house
or the void above the ceiling in an apartment (but may be installed in
a cupboard) and will be connected by hidden ductwork to vents sited
in the ceilings of the rooms which require ventilation. Each unit is
commissioned individually allowing its performance to be tailored to
suit the performance required. There will be a facility to boost the
extraction rate when desired (e.g when cooking or bathing or pollutant
levels rise). This may be done automatically or manually.
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<whole house heat recovery units giving continuous ventilation in the kitchen and up to six additional wet rooms
<low noise levels
<variable choice low (trickle) speed and boost options for optimum setting at installation
<boost speed can be triggered by a switched live connection from a variety of external devices including:
- PIRFF (passive infra red):
- DRH240 (dynamic remote humidistat):
- THM (thermostat):
- a light switch (if more than one light switch is used, $#"*()$*!%$!(,)8
- a remote switch/pull cord
• Can be mounted with left or right hand drainage and ducting
)#'$#)'$!)*'(:
= +'!*()"#)- trickle and boost speeds set at installation for both motors independently
=$$()())# - with integral overrun timer ad ustable up to 20 minutes
= $%)$#!!.6$#6)"'6 boost speed does not operate if switched off within 2 minutes
= #)'!'$()6())6 proportionately reduces intake motor speed as temperature falls
=(*""'.%((- automatic bypass of heat exchanger in hot weather
Factory Set Options
=%*'$$()- for rapid air change - automatically timed for 15 minutes
= $##)$#( - for remote motor shut off
= #)'!*"())- proportionately increases motor speeds with rising humidity
<Installation MUST be carried out by suitably qualified personnel and MUST be in accordance with current IEE
regulations
#()!!)$#
<This product should not be used for any purpose other than that for which it was designed and as shown
in this leaflet.
<All packaging should be removed and the unit checked for damage in transit. If there is any damage, please
contact your supplier
• The EVO90DC will generally be fitted into a loft or ceiling void. #$'')$$"%!.,)
$#()'*)$#7(#9#"#)8*!)$#(5(*#)(($'("#)##7'$""#
$####*!((85$''"$+!$!!$,##()!!)$#5%'$+$')(%'$*)3"#6
($#($+3
<Fire Dampers "*())) to duct work at appropriate locations in accordance with Building Regulations
< !*(('$"*!6*'##&*%"#)"*()#$)',##)$!+#'3#.'$$"'$",'
( -)')$#)#(*!*'##%%!#5(*(#)'!)#$!'5)#)(!*"*()$
)(!$'!#!*).%5$'!!$,#"*()"$'#&*)(*%%!.$'#)$)
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<The unit must NOT be installed:
- where there is excessive oil or grease
- where there are hazardous gases, liquids or vapours that are flammable or corrosive
- in ambient temperatures above 50ºC or lower than 5ºC
- in humidity levels above 90% or in a wet environment
• Where possible the unit should NOT be installed directly above a bedroom or living room.
<The condensation drain "*() be fitted and if insulated, use the equivalent of at least 25mm of insulating
material with a thermal conductivity of 0.04 W/(mK)
<Care should be taken to ensure that ducting is free from blockages before switching on the unit as this may
invalidate your guarantee
<External grilles should be located a minimum of 600mm from any flue outlet in accordance with all
Regulations
<The unit must be connected to a 230v-240v, 50Hz single phase electrical supply.
<A triple pole isolation switch with contact separation of at least 3mm must be used to connect the appliance
to the fixed wiring when using the Switched Live.
<The product should only be connected to the mains electricity supply or electrical outlet if:
- your electrical voltage and frequency correspond to those shown on the rating label.
- the capacity of your electricity supply is sufficiently powerful to operate the product at its
maximum power.
<If one of the spigots is not connected to ducting a safety grille be fitted to that spigot, so that it is
impossible for any moving part to be touched.
• This appliance is not suitable for installation on the outside of a building
Installation of the appliance be carried out by a qualified and suitably competent person and should be
carried out in clean, dry conditions where dust and humidity are at minimal levels.
Page 3
12
*)#*)$##)$#( (refer to design drawing)
<4 x 125mm nominal diameter spigots are provided for the connection of ducting. These are clearly marked
for correct connection of the supply and exhaust ducts.
<Where ducting is installed in an unheated space, all of the ducts should be insulated. Where ducting is in-
stalled in a heated space, only the cold ducts should be insulated. i.e. the supply duct from outside and the
extract duct from the unit to the outside.
<The duct layout must be designed to suit the requirements of the ventilation/recovery system and building lay
out. If the ducting passes through a fire wall/barrier, suitable fire dampers must be installed.
<Where rigid duct is used, it should be installed using the least number of fittings to minimise air flow resist-
ance. Where possible, final connection to the grilles and unit should be made with a flexible connection.
<Where flexible ducts are used, ensure that:
- duct runs are kept as short as possible
- the duct is stretched so that it is smooth and straight
- where bends are necessary, they have large radii (ie avoid sharp bends)
- the duct is not crushed if in a restricted area
$##()$#
The unit may sometimes produce condensation which must be drained away. A 15mm dia pipe connection is
provided on this unit).
<A 15mm dia pipe must be fitted to the pipe connection. If any part of the condensate drain is in an
unheated space it MUST be insulated with the equivalent of at least 25mm of insulating material with a
thermal conductivity of 0.04 W/(mK).
<The pipe must drain into the normal household drainage system.
<The drain must incorporate a wet or dry trap to prevent air penetration.
<The unit must be tilted towards the side carryng the condensation exit point. It should be installed
horizontally with a 3º tilt towards the condensation drain used (equivalent of raising the opposite end by
approximately 25mm).
<The drainage pipe must have a continuous fall from the unit to the drainage collection point.
!)'!$##)$#
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• The unit is suitable for 230v-240v, 50Hz
• The unit is supplied with a mains rated 4 core flexible cord (black, brown, grey and green/yellow), or an
external connector box
• A triple pole isolation switch with contact separation of at least 3mm must be used to connect the appli-
ance to the fixed wiring when using the Switched Live.
• Boost controls must not be located within 1 metre of a cooker or where they may be affected by
excessive heat or moisture
• Boost controls should be clearly identified and conveniently located.
• The boost switch wiring cable access is via a 12mm cable gland.
• The boost speed can be triggered by a switched live connection from a variety of external devices including:
- PIRFF (passive infra red):
- DRH240 (dynamic remote humidistat):
- THM (thermostat):
- a light switch (if more than one light switch is used, $#"*()$*!%$!(,)8
- a remote switch/pull cord
(:PIRFF, DRH240 and THM may have integral over-run timer which controls the length of time that the fan
will continue to operate at its boost speed after the boost has been switched off.)
Page 4
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<When the unit is set up and running, the minimum setting on the speed control switch must relate to the
designed volume air flow. The variable air flow from minimum to maximum allows the unit to extract a
greater volume to cope with any increase in the build up of condensation or foul air, ie cooking etc.
<Before starting the commissioning procedure, refer to the design drawing for correct air flows.
<. Installation of the appliance be carried out by a qualified and suitably competent person and should
be carried out in clean, dry conditions where dust and humidity are at minimal levels. It should only be in-
stalled after other building works have been completed and the building in which it is installed cleaned. Failure
to comply with any of the above points will have an impact on the validity of the guarantee.
<. Prior to starting the commissioning procedure, ensure that the ductwork connections and airflow directions
are as marked on the product.
<. Before making any ad ustments, ensure that the air valves or grilles are fully open.
<. Motor speed and timer settings are ad usted on the control board, which is located behind the small panel
on the front of the cabinet. Once removed, there is access to potentiometers and umper
switches for use during the commissioning process. (See diagram on Page 6)
4))$#)'$!$'%#!'"$+5/02+$!)!+$##)$#('((!3
'!$,*()"#)
Depending on the configuration of the duct connections and drainage, the ad ustment potentiometers on the con-
trol board marked MOT 1 and MOT 2 will correspond to the supply or extract valves. It will be necessary to iden-
tify which is which before commencing the ad ustment.
$'"!7)' !8%
Before making any ad ustments, switch on the unit at trickle speed.
1. Move the speed ad ust umper switch JP5 to position A, as shown in the diagram. A green light will
appear on the circuit board.
2. With the boost switch off (bathroom light switch OFF), measure the airflow rate at the valves correspon-
ding to MOT 1 (supply or extract) and compare to the design values. If there is a difference, ad ust the
potentiometer MIN-MOT 1 on the control board and re-check the airflow rates. Re-ad ust the potentio-
meter until the values are approximately correct. Final ad ustments can be made at the air valves.
3. Set the potentiometer MIN-MOT 2 to roughly the same position as MIN-MOT 1.
Repeat the ad ustment process for the valves corresponding to MIN-MOT 2.
$$()%
4. Switch the unit to boost (light switch ON).
5. Measure the airflow rate at the valves corresponding to MOT 1 (supply or extract) and compare to the
design value. If there is a difference, ad ust the potentiometer MAX-MOT 1 on the control board and re-
check the airflow rates. Re-ad ust the potentiometer until the values are approximately correct. $#$)'6
*())'+!+(3
6. Set the potentiometer MAX-MOT 2 to roughly the same position as MAX-MOT 1 and check the airflow val-
ues at the corresponding valves. Re-ad ust MAX-MOT 2 until approximately correct as per the design val-
ues. $#$)'6*())'+!+(.
7. Return the umper switch JP5 to position B (green light goes out).
Page 5
Page 6
Vectaire Ltd, Lincoln Road, Cressex Business Park, Hi h Wycombe, Buckin hamshire, HP12 3RH
Tel: +44 (0)1494 522333. Fax: +44 (0)1494 522337. Email: [email protected]
EVO90DCSept2016 E & O.E
"'+''*#*()"#)
After the boost switch has been turned off, the fan will continue to run at boost speed for up to 20 minutes. This
overrun time is ad ustable using the potentiometer marked TIMER. The time can be varied between 0 and 20 min-
utes. After the set time, the fan returns to normal speed.
!.6$#$$()
When the boost switch is operated, the boost speed activation can be delayed by 2 minutes, if required.
Using the umper switch JP6, move the umper position to either:-
- 2 minutes, or
- 0.5 seconds
Finally, replace the control panel cover securely.
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$##).
The air filters and heat exchanger of the Vectaire EVO90DC should be cleaned regularly by a
suitably qualified person (the frequency of cleaning will vary depending on the installation environment).
!)'(4
<Remove the magnetic strip covering the filter slots and pull out the filters. Remove the dust using a vacuum
cleaner. Carefully replace the filters into the slots and re-fit the magnetic strips.
)-#'6$%(($#!.4
<Remove the centre screw and the four corner screws located on the larger access panel
<Using the strap attached, pull out the heat exchanger from the cabinet. Note : in cold weather, the heat
exchanger may contain water. It is useful to have a bowl available to avoid spillage. Clean any excess dust
and dirt from the faces of the heat exchanger. Carefully replace the heat exchanger into the cabinet and
replace the access panel.
)-#'6$))$"((4
< )(((%!()$%')$#5%!($#)))')3
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<Filters should be replaced annually or after a maximum of 3 cleaning cycles.
<Replacement filters are available from Vectaire - call us on +44 (0) 1494 522333 or via
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