Vectaire WHHR Midi Assembly instructions
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96 5"/125 spigot, for dwellings up to 230 2, ax capacity 102 litre/sec
9)6 5"/125 spigot, for dwellings up to 140 2, ax capacity 62 litre/sec
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The Vectaire WHHR Midi heat recovery syste provides whole house
echanical ventilation to living areas, bedroo s, kitchen and bathroo s.
It extracts stale, conta inated air fro kitchens, utility roo s and bath-
roo s, and uses the heat recovered fro this air to war fresh, inco -
ing air to create a flow of fresh, filtered air throughout the dwelling. The
extract and intake air strea s are separated to avoid conta ination.
The syste will operate continuously to create a stable, co fortable,
healthy environ ent avoiding the use of excessive energy and saving
heat already generated.
The heat recovery unit ust be installed vertically, and will generally be
sited in a cupboard. It will be connected by hidden ductwork to vents
sited in the ceilings of the roo s which are to be ventilated. Each unit
is co issioned individually so that the a ount of air oved is tailored
to suit the perfor ance required. There will be a facility to boost the
extraction rate when desired (e.g when cooking or bathing, or when pol-
lutant levels rise). This ay be done auto atically or anually.
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?() whole house heat recovery units giving continuous ventilation in the kitchen and up to seven
additional wet roo s (using rigid ducting)
? low noise levels
? variable choice low (trickle) speed and boost options for opti u setting at installation
? boost speed triggered by a switched live connection fro :
- a light switch (if ore than one light switch is used, $#"*()$*!%$!(,);
- DRH240 (dyna ic re ote hu idistat)
- PIRFF (passive infra red)
- THM (ther ostat)
- a re ote switch/pull cord
or via LCD control panel
• Can be ounted with left or right hand drainage and ducting
• Econo ical EC otor with electronic control plus:
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@ +'!*()"#)- trickle and boost speeds set at installation for both otors independently
@$$()())# - with integral overrun ti er adjustable up to 20 inutes
@ $%)$#!!.9$#9)"'9 boost speed does not operate if switched off within 2 inutes
@ #)'!'$()9())9 proportionately reduces intake otor speed as te perature falls
@%*'$$()- for rapid air change
@ $##)$#( - for re ote otor shut off
?Installation MUST be carried out by suitably qualified personnel and MUST be in accordance with current IEE
regulations
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?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 re oved and the unit checked
for da age in transit. If there is any da age, please
contact your supplier
• The WHHR Midi/Midi Lite ust be installed vertically,
and generally be fitted into a cupboard, loft or ceiling
void.
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?Regulations and current Building Regulations. In order to co ply with these, it ay be necessary to fit fire
da pers or other si ilar devices.
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?The unit ust be installed:
- where there is excessive oil or grease
- where there are hazardous gasses, liquids or vapours that are fla able or corrosive
- in a bient te peratures above 40ºC or lower than 0ºC
- in areas of excessive hu idity or in a wet environ ent
• Where possible the unit should T be installed directly above a bedroo or living roo .
?The condensation drain be fitted
?Care should be taken to ensure that ducting is free fro blockages
?External grilles should be located a ini u of 600 fro any flue outlet in accordance with all Regulations
?The unit ust be connected to a 230-240v, 50Hz single phase electrical supply.
• A triple pole isolation switch with contact separation of at least 3 ust be used to connect the appliance
to the fixed wiring when using the Switched Live.
? The product should only be connected to the ains 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 axi u power.
? If one of the spigots is not connected to ducting a safety grille be fitted to that spigot, so that it is
i possible for any oving part to be touched.
Installation of the appliance be carried out by a qualified and suitably co petent person and should be
carried out in clean, dry conditions where dust and hu idity are at ini al levels. The unit is not suitable for
installation to the exterior of the dwelling.
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• Care should be taken when transporting the unit
Dropping or knocking will da age the inner workings
of the unit.
• The unit should always be stored in a clean, dry
environ ent.
• Re ove all packaging before installation.
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• Inspect the unit and electrical supply cord for any
da age (da age ust be repaired by a suitably
qualified and co petent person.)
• Check all parts are supplied as shown.
Page 3
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1 x Vectaire WHHR Midi/Midi-Lite unit.
1 x Wall ounting bracket.
1 x Safety bracket.
1 x Installation, Operation & Maintenance
Instructions
Any parts shortages or faults ust be reported to the
supplier i ediately.
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?4 x 125 no inal dia eter spigots are provided for
the connection of ducting. These are clearly arked
for correct connection of the supply and exhaust ducts.
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Page 4
1. Mark a horizontal line on the wall using a spirit level.
This line will be approxi ately 40 below the loc-
ation of the top face of the unit when fitted (exclud-
ing duct ports). Use the ounting bracket as a
te plate to ark the five fixing hole centres.
2. Check fixings supplied, which are for a solid wall,
are suitable for your installation. For a different
type of ounting surface, ensure appropriate
fixings are used. Drill holes for fixings.
3. Fit wall plugs into drilled holes
4. Mount the fixing bracket to the wall ensuring the
interlocking side is at the top, as shown
5. Mount the unit by locating the bracket on the back
of the unit securely over the ounting bracket
6. Fix the lower safety bracket as shown. Screw and
plug supplied are for solid wall - check that this is
appropriate for your installation (see '2' above.)
7. $##()$#
?(The unit ay so eti es produce condensation which ust be
drained away. A 21.5/22 dia pipe outlet is provided on this unit).
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If the ducting is installed as shown in Fig A, the drain ust be connected to
the left-hand outlet. If the ducting is installed as shown in Fig. B, the drain
ust be connected to the right-hand outlet. The unused drain outlet ust
be capped off.
• The drainage pipe ust be installed with a continuous fall fro the cabinet
to the external household drainage point and a wet or dry trap ust be fitted to prevent return air penetration.
• If any part of the condensate drain pipe passes through an unheated space, it ust be insulated with the equiv-
alent of at least 25 of insulating aterial with a ther al conductivity of 0.04 W/ K.
?Where ducting is installed in an *#)
space, all of the ducts should be insulated.
Where ducting is installed in a )
space, only the cold ducts should be insu-
lated. i.e. the supply duct fro outside and
the extract duct fro the unit to the outside.
?The duct layout ust be designed to suit
the require ents of the ventilation/heat
recovery syste and building layout.
?Where rigid duct is used, it should be in-
stalled using the least nu ber of fittings to
ini ise air flow resistance. Where possible,
final connection to the grilles and unit should be
ade with a flexible connection.
?Where flexible ducts are used, ensure that:
- lengths of ducting longer than necessary
are #$)used
- the duct is stretched so that it is s ooth
and straight
- where bends are necessary, they have l
large radii (ie avoid sharp bends)
-
the duct is not crushed if in a restricted area
? Where ducting passes through a fire partition, suitable fire da pers "*() be installed to prevent the
trans ission of fire through the duct.
Page 5
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• The unit is suitable for 230V, 50Hz Single phase supply.
• The unit is supplied with6
9 A ains rated 4 core flexible cord (black, brown, grey and green/yellow) and 2 core 0-10v cables for purge
switching, $'an external connector box.
Cables for any other external device will be %'$+#!!!$#'&*()
• A triple pole isolation switch with contact separation of at least 3 ust be used to connect the appliance to the
fixed wiring when using the Switched Live.
• Boost controls ust not be located within 1 etre of a cooker or where they ay be affected by excessive heat or
oisture.
• Boost and other external controls should be clearly identified and conveniently located.
? The boost facility can be activated by a switched live connection (in addition to the per anent supply live). The switched
live can be operated by a variety of external devices, including:
- PIRFF (passive infra red)=
- DRH240 (dyna ic re ote hu idistat)=
- THM (ther ostat)=
- a light switch (if ore than one light switch is used, $#"*()$*!%$!(,);
- a re ote switch/pull cord
or via LCD control
(=PIRFF, DRH240 and THM ay have integral over-run ti er which controls the length of ti e that the fan will
continue to operate at its boost speed after the boost has been switched off.)
Page 6
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1. The co issioning ust only be carried
out by a suitably qualified person.
2. Prior to starting the co issioning pro-
cedure, ensure that the ductwork connec-
tions and airflow directions atch one of
the options A or B, shown on page 5.
Check that the drain connection is on the
correct side.
3. Before aking any adjust ents, ensure
that the air valves or grilles are fully open.
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The heat exchanger within the unit should be cleaned annually.
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The air filters and heat exchanger of the Vectaire WHHR Midi/Lite should be cleaned regularly by a suitably qualified
person (the frequency of cleaning will vary depending on the installation environ ent).
!)'(6
? Slide out the filters by pulling out the tabs.
? Clean the filters carefully using a vacuu cleaner, replace in the
slots and refit the filter covers
)-#'6
? Firstly re ove filters as described above
? Re ove the screws securing the front panel and carefully lift off.
Using the plastic strap fitted, carefully pull out the heat exchanger
? Caution: if this is done during cold weather, the heat exchanger
ay contain water. It is advisable to have a plastic bowl available to
avoid spillage.
? Lightly clean the faces of the heat exchanger with a vacuu
cleaner. Replace the heat exchanger carefully, by sliding the
asse bly back into the cabinet.
? Replace the front cover by hooking the top edge into the slots in the cabinet and secure in place using the
screws.
?Finally, replace the filters as above.
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Filters should be replaced annually or after a axi u of 3 cleaning cycles.
Replace ent filters are available fro Vectaire - call us on +44(0)1494 522333 or e ail to [email protected]
WHHR Midi/Midi Lite/ LED 070817 E & O.E
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]
This manual suits for next models
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