National Ventilation Monsoon MON-HRU/230-100 Guide

MON-HRU/230-100
MON-HRU/330-100
MON-HRU/400-150
Installation & Commissioning
PLEASE RETAIN THESE INSTRUCTIONS WITH THE PRODUCT.

Warnings & Safety Information
2
IMPORTANT SAFETY INFORMATION
PLEASE READ THESE
INSTRUCTIONS CAREFULLY
BEFORE COMMENCING
INSTALLATION.
1. Do not install this product in areas where
the following may be present or occur:
• Excessive oil or a grease laden
atmosphere.
• Corrosive or flammable gases, liquids or
vapours.
• Subject to direct water spray from hoses.
• Ambient temperatures higher than 40°C
and lower than -20°C.
• Possible obstructions that may hinder
access to or removal of the unit.
2. All wiring must be in accordance with the
current IEE wiring regulations BS7671, or
appropriate standards of your country.
Installation should be inspected and tested
by a suitably qualified person after
completion.
3. Ensure the mains supply (voltage,
frequency and phase) complies with the
rating label.
4. The unit should be provided with a local
double pole fused spur fitted with a 3A fuse
having a contact separation of at least 3mm.
5. These units must be earthed.
6. Precautions must be taken to avoid the
back-flow of gases into the building from the
open flue of gas or other fuel-burning
appliances.
7. This appliance is not intended for use by
persons (including children) with reduced
physical, sensory or mental capabilities, or
lack of experience and knowledge, unless
they have been given supervision or
instruction concerning use of the appliance
by a person responsible for their safety.
8. Young children should be supervised to
ensure that they do not play with the
appliance.
INSTALLATION GUIDANCE
1. The installer is responsible for the installation and
electrical connection of the MON-HRU system on site. It is
the responsibility of the installer to ensure that the
equipment is safely and securely installed and left only
when mechanically and electrically safe.
2. All regulations and requirements must be strictly
followed to prevent hazards to life and property, both
during and after installation, and during any subsequent
servicing and maintenance.
3. The unit’s condensate drain must be connected to the
building’s wastewater drainage system.
4. Certain applications may require the installation of sound
attenuation to achieve the sound levels required.
5. The unit must not be connected directly to a tumble
drier.
6. The supply and exhaust valves must be fully opened
prior to commissioning.
7. The supply air must be drawn from the exterior of the
property.
8. The unit should be allowed to stabilise during
commissioning for a minimum period of 5 minutes when
changing between boost and normal speeds.
9. Ensure that the unit’s external grilles are a minimum of
1500mm apart. The exhaust grille should be located at
least 600mm away from any flue outlet. The inlet grille
should be located 2000mm away from any flue outlet.
10. This product and associated duct installation should be
carried out in accordance with the domestic ventilation
compliance guide.
Disposal
This product should not be disposed of with household
waste. Please recycle where facilities exist. Check with
your local authority for recycling advice.

About this Document
3
Contents
IMPORTANT SAFETY INFORMATION .........................................2
INSTALLATION GUIDANCE..........................................................2
MON-HRU ......................................................................................4
Technical Data 5
Installation 8
Overview .......................................................................................8
Before Installation of the Unit .....................................................8
Unit Installation ............................................................................8
Electrical Installation .................................................................20
Powering Up the Unit .................................................................22
Commissioning 23
Overview .....................................................................................23
Commissioning Control.............................................................24
Maintenance 26
Filter Maintenance......................................................................26
12 Monthly Maintenance............................................................26
PRODUCT FICHE 27
UKBuildingRegulations(PartF)Declarationof
Conformance
MON‐HRU/230‐100ANDMON‐HRU/400‐150units
conformtothe2010BuildingRegulations(PartF‐
MeansofVentilation)installedperformanceofa
ductedmechanicalextractfanwheninstalledin
accordancewiththeinstructionsinthisdocument
andthedomesticventilationcomplianceguide.

Note:
ReadinconjunctionwiththeUserInstructions
manual475021

Product Description
4
MON-HRU
TheMONSOONMON‐HRUrangeareheatrecoveryunitsdesignedfortheenergyefficient
ventilationofhousesandsimilardwellings,conformingtothelatestrequirementsoftheBuilding
RegulationsdocumentF2010.
Theseunitsaredesignedforcontinuous24hourexhaustventilationofstalemoistairfrom
bathrooms,toiletsandkitchens.Asthestaleairisextracted,aheatexchangerwithintheunit
transfersupto94%oftheheatandtransfersitintothesupplyairenteringthebedroomsand
lounge.
Figure 1: Right Hand Units (Factory Configured)
MON-HRU/230-100 MON-HRU/330-100 & MON-HRU/400-100
Figure 2: Left Hand Units (See conversion pages 9-11)
MON-HRU/230-100 MON-HRU/330-100 & MON-HRU/400-100

Installation
5
Technical Data
Figure 3: MON-HRU/230-100 and MON-HRU/330-100 Dimensions
Performance MON-HRU/230-100 MON-HRU/330-100 MON-HRU/400-150
Airflow Maximum, FID, 238 m3/h
Normal factory set at minimum
Boost factory set at minimum
(For commissioning graphs see
page 7)
Maximum, FID, 335 m3/h
Normal factory set at minimum
Boost factory set at minimum
(For commissioning graphs see
page 7)
Maximum, FID, 500 m3/h
Normal factory set at minimum
Boost factory set at minimum
(For commissioning graphs see
page 7)
Sound levels (@ 3 m) 29 dB(A) (normal), 34 dB(A) (boost) 24 dB(A) (normal), 34 dB(A) (boost)
Power
AC Voltage Input 220-240 V AC (single phase) 220-240 V AC (single phase) 220-240 V AC (single phase)
AC Frequency Input 50 Hz nominal 50 Hz nominal 50 Hz nominal
Rated Power 150 W (max.) 160 W (max.) 190 W (max.)
Physical
Height (excluding spigots) 550 mm 550mm 630 mm
Width (excluding spigots) 550 mm 555mm 775 mm
Depth 285 mm 350mm 524 including filter flap hinge
protrusion
Weight 12 kg 19 kg 24 kg
Spigot diameter 125 mm 125 mm 150 mm
Condensate pipe diameter 22 mm 22 MM 22 mm
Environmental
IP Rating IP22 IP22 IP22
Operating Temperature -10C to +45C -10C to +45C -10C to +45C
Air Intake Temperature As above As above As above
Operating Humidity 0% to 95% RH 0% to 95% RH 0% to 95% RH
Storage Temperature -10C to +45C -10C to +45C -10C to +45C
Storage Humidity 0% to 95% RH 0% to 95% RH 0% to 95% RH
285 MON-HRU/230-100
350 MON-HRU/330-100
650 MON-HRU/230-100
632 MON-HRU/330-100

Installation
6
Figure 4: MON-HRU/400-150 Dimensions
MON-HRU/230-100 Performance graph for Vertical Discharge
Note: Graph show 2 typical system curves with total unit input power in Watts.

Installation
7
MON-HRU/330-100 Performance graph for Vertical and Horizontal Discharge
MON-HRU/400-150 Performance graph for Vertical and Horizontal Discharge
Note: Graph show 2 typical system curves with total unit input power in Watts.

Installation
8
Installation
Overview
Thefollowinginstructionsareintendedtohelppreventpotentialhazardsandinstallationshould
onlybecarriedoutbyaqualifiedelectricianandinstaller.ThisbookletcoversboththeMON‐
HRU/230‐100,MON‐HRU/330‐100andMON‐HRU/400‐150.Thecontrolsystemsareidenticalon
bothunits.Therearesomedifferencesduringthephysicalinstallationthattheinstallerneedstobe
awareof.
NOTE:weadviseinstallerstofixallmainsandsensorwiringpriortofixingtheMVHRunitin
position.
Before Installation of the Unit
Inspect the Unit
Whentakingdeliveryoftheunit,checktheitemsdeliveredagainsttheencloseddeliverynote.
Inspecttheunitfordamageintransit.Ifindoubt,contactCustomerServices.Eachboxcontainsa
MON‐HRUunitandanaccessorypackcontainingwallbrackets,condensatedrainlinkpipes,worm‐
driveclips,fixingsandproductdocumentation.
Lift and Move the Unit Safely
Onpage5checktheweightoftheunitthatyouareinstalling.Alwaysuseappropriatelifting
techniquesandapplianceswhenmovingheavyequipment.
Check Site Requirements and Safety Notices
Checkthatthephysicalandenvironmentalconditionsforthesitemeet,orexceed,the
requirementsdetailedintheTechnicalSpecificationonpage4.
ReadandobservethesafetynoticeslistedinWarningsandSafetyInformationonpage2.
Unit Installation
TheMON‐HRU/230‐100unitistypicallyinstalledonawallinakitchen,storagecupboard,roofvoid,
orsimilar.Itwillfitina600mm(external)x300mmdeep(internal)kitchenwallcupboard.
TheMON‐HRU/330‐100andMON‐HRU/400‐150unitsaretypicallyinstalledonawallinautility
room,storagecupboard,roofvoid,orsimilar.
Thewallshouldhavesufficientstrengthtosupporttheunit.
Takeintoconsiderationthepositionoftheelectricalservicesandthecondensatedrain.
Ensurethereisanadequateaccessforinstallation,operationandmaintenance.
Itisrecommendedthatalocaldisconnectionmainsandsensorterminalboxisinstalledwithin1m
oftheunittofacilitatefuturemaintenance.
TheunitMUSTalwaysbemountedverticallywithductingexitingverticallyorhorizontally.Donot
usethisunitasasupportforanyotherequipment.







Installation
9
Select Unit Orientation
Theunitissuppliedfromthefactorywiththecondensateexit(andtheatmospherespigots)tothe
rightoftheunit,whenviewedfromthefront.AccessisrequiredtotheControlUnitonthefrontof
theunitinordertocommission,operateandmaintaintheunit.Iftheunitistobeinstalledas
supplied,skipthefollowingsectionandgotoVerticalDischargeCondensateInstallationonpage
11.
Iftheorientationofthecondensateexit(andtheatmospherespigots)wouldbebettersuitedon
theleftoftheunit,thefrontControlUnitandtherearCableInletPlatecanbeswappedoverto
allowtheunittobeinstalledintheoppositeorientation.
Installing the Unit in the Opposite Orientation (LH Condensate)
Installingtheunitintheoppositeorientation
involvesremovingthefrontcover(and
associatedControlUnitPanel),andtherear
cover(andassociatedCableInletPlate),rotating
theunitchassisandcoversthrough180degrees
andthenre‐attachingthem.
Thismovesthecondensatedrainexitfromthe
right(rear)corneroftheunittotheleft(front)
corneroftheunit,whenviewedfromthefront
(viewingtheControlUnit).



ThearrowlabelsonthetopedgeoftheCovers
shouldbecorrectlymatchedtothearrowlabels
onthetopoftheCase.
1. Removethefrontandrearcoversby
unscrewingthe)fixingscrewsonboth
covers.
2. SixscrewsfortheMON‐HRU/230‐100and
MON‐HRU/330‐100.
3. EightscrewsfortheMON‐HRU/400‐150.

Installation
10
4. Removethe2screwsanddetachthe
Electrical
Coverfromthefrontoftheunit.
5. Removethe2screwsanddetachtheControl
Panelanddisconnectthemainslead.

6. Disconnecttheconnectionlooms.
7. Disconnectallthewiringloomsfromcontrol
panel.
8. Removethe2screwsanddetachtherear
CableInletPlate.

Notethatthegrommetsshownmaybe
replacedbyeasyknock‐outpositions.If
thesearerequired,ensurethatyouusea
grommetorglandtoprotectagainst
potentialwateringress.
7.Re‐attachtheCableInletPlateontheoppositesideoftheunit.

Installation
11
8.FittheControlPanelontheoppositesideoftheunit.Takingcaretoreconnectthe2‐way,3‐way
andinternalconnectorstothecontrolpanelbeforesecuringthepaneltotheunit.
9.Re‐connectthemainscable:L,N,E,LS1andLS2.
11.Leavethefrontandrearcoversofftheunit.
12.Forverticaldischargecondensateconnectioncontinueonpage11,orforhorizontaldischarge
condensateconnectiongotopage12.
Vertical Discharge Condensate Installation
Note
The 22 mm diameter condensate pipe is suitable for standard 22 mm plastic push-fit fittings and can
be connected vertically underneath the unit or horizontally at the rear.
Toinstalltheverticaldischargecondensate:
1. Forverticaldischarge,removetherearcover
andlocatethecondensatestubattherearof
theunit.
2. RemovetheblackCapfromtheendofthe
condensatestubattherearoftheunit.

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12
3.Fittheverticalcondensatepipeandsecure
withwormdriveclip
Thecondensatepipecanbeattachedwitha
wormdrivecliptoa22mmverticalpipe.
Fita‘U’bendcondensatedrainhavinga
minimumofa60mmwatersealoraHepvO
valvetothebuilding’sfoulwaterdrainage
systemandensurethereisaminimum3
degreefalltoallowcondensatedrainage.
Bothlefthandandrighthandcondensate
drainpipesaresuppliedforuseas
appropriatedependingontheorientationof
theunit.
4.GotoSpigotInstallationonpage14.
Horizontal Discharge Condensate Installation
Toinstallthecondensatehorizontaldischarge:
1. Forhorizontaldischarge,removethefront
coverandlocatethecondensatestubatthe
frontoftheunit.
2. RemovetheBlackCapfromendof
condensatestubatthefrontoftheunit.

Installation
13

3.OntheMON‐HRU/230‐100andMON‐
HRU/330‐100drilladiameter32mmwhole
whereshown,right.
OntheMON‐HRU/400‐150drilladiameter
32mmholeusingtheindentprovidedinthe
mouldingasaguide.
Theholeisaclearanceholeforadiameter
22mmpipeandsomayvaryalittlefrom
thisguidance.



4.N.B.SEE“WALLMOUNTING”onpages
15to18forinformationonmarkingout
thewallforthepositionofthe
condensatedrainandwallmounting
brackets.

FitVerticaldischarge32mmwastepipe
(fittedwith22/32mmreducer).

Fita‘U’bendcondensatedrainhavinga
minimumofa60mmwatersealora
HepvOvalvetothebuilding’sfoulwater
drainagesystemandensurethereisa
minimum3degreefalltoallow
condensatedrainage.


5.Fitthe180degreebendsuppliedtoa
22mmdiameterx280mmlong
condensate
pipewithwormdriveclip.


60 mm
21 mm

Installation
14

6.Fitpipeassemblyintowastepipeand
secure90degelbowtocondensate
spigotwithwormdriveclip.


Spigot Installation

Airentry/exitspigotsmaybefittedoneitherthetoporthesideoftheunitforverticalorhorizontal
entryorexit.Attachthespigots,dependingonthespaceavailablefortheductingandorientationofthe
unit.Alwaysfittheblankingcapstotheentryorexitholenotinusetoensurethecorrectairflowinto
andoutoftheunit.


Tomovethespigots:
1. Removethespigotbyunscrewingthe
screw(s)securingittothechassis.Thenpull
thespigotfirmlyfromtheentry/exithole.
2. Removetheblankingcapbyunscrewingthe
screw(s)securingittothechassis.Thenpull
theblankingcapfirmlyfromtheentry/exit
hole.
3. Swapoverthespigotwiththeremoved
blankingcap.
4. Insertthespigotintotheentry/exitholeand
securewiththeretainingscrew(s).
5. Inserttheblankingcapintotheentry/exit
holeandsecurewiththeretainingscrew(s).
N.B. Before finally fixing the unit into position it may be more convenient to make
the electrical connections; including the mains connections and any wiring
for sensor(s) or switch(es).

Installation
15
Stand-off feet
Wall Mounting MON-HRU/230-100 & MON-HRU/330-100
1.Refitthefrontandrearcoversiftheyhavebeenremoved.
2.Ensurethetwosteelwallbushesarefittedtotherearcover,
alongthetoprowofscrews.
3.Markthecondensateandwallbracketpositions.
4.Fitthestand‐offfeetinplace,suppliedintheaccessorybag
5.Fitmetalwallbracket(supplied)tothewallusingappropriate
fixings.
6.Liftunitandlocatethesteelwallbushesontothewallbracket.
Theunitshouldnowbephysicallyinstalledinitsintended
operatinglocation.
7.Ensurethatthecondensatedrainisconnectedasdescribedon
page13.

Installation
16
MON-HRU/230-100 & MON-HRU/330-100
Wall Mounting Dimensions

Installation
17
Wall Mounting MON-HRU/ 400-150
1. Refitthefrontandrearcoversiftheyhavebeen
removed.
2. Ensurethethreesteelwallbushesarefittedtothe
rearcover,alongthetoprowofscrews.
3. Markthecondensateandwallbracketpositions
usingthedrawingbelow.
4. Fitmetalwallbracket(supplied)tothewallusing
appropriatefixings.
5. Fitthestand‐offfeetinplace,suppliedinthe
accessorybag.
6. Liftunitandlocatethesteelwallbushesontothe
wallbracket.Theunitshouldnowbephysically
installedinitsintendedoperatinglocation.
7. Ensurethatthecondensatedrainisconnectedas
describedonpage13.
Stand-off feet

Installation
18
MON-HRU/ 400-150 Wall Mounting Dimensions

Installation
19
Attaching the ducting:
1. Alwaysuseashortpieceofflexibleduct100‐150
mmlong,extendedtoitsfulllengthwhen
connectingtoductwork.
2. Securelyconnectthisductingtothespigotsusing
worm‐driveclips,cabletiesorducttape.
3. Insulateanyductingpassingthroughanunheated
spacetopreventanyheatlossesandsurface
condensation.

Installation
20
Electrical Installation
Connect Switches and Sensors
Theunitcanbeswitchedtoboostbyapplying230VtotheLS1orLS2inputs.Alternatively,the
boostbuttononthecontrolunitmaybeused.
Table1:MainsCableConnections
Terminal No. Name Cable connection Description
L Mains Live Brown 220-240 V AC, 50 Hz input
N Mains Neutral Blue 220-240 V AC, 50 Hz input
EARTH Mains Earth Yellow/Green Earthing connector
LS1 Switched Live 1 Black 220-240 V AC, 50 Hz input
LS2 Switched Live 2 Black colour with
white stripe
220-240 V AC, 50 Hz input