System air HHCompact Series Owner's manual

HHCompact Air Handling Units
Installation, operation and maintance instructions

2 | HHCompact Air Handling Units
Content
Safety considerations
41.1 - General
41.2 - Applications
41.3 - Instruction types
61.4 - Disposal of parts/materials
Transporting and lifting constructions
62.1 - General
62.2 - Transport and storage
62.3 - Roof edge protection during transport (outside installation)
7 2.4-Ofoadingandhoisting
72.5 - Horizontal transport
72.6 - Storage
72.7 - Assembly
7 2.8-Schematicdiagramofanairhandlingunitwithcontrols
Checklist of start-up check points
11 3.1 - Checklist of start-up check points
Start-up instructions
12 4.1 - Casing
12 4.1.1 - Casing panels
12 4.1.2 - Doors and access covers
12 4.1.3 - Flexible connections
12 4.1.4 - Earthing
12 4.1.5 - Duct connections
13 4.1.6 - Outdoor air intake
14 4.1.7 - Assembly and placement of the air handling unit
14 4.1.8 - Air contamination
14 4.1.9 - Condensation in or on the AHU
14 4.1.10 - AHU support
15 4.2 - Dampers
15 4.3-Airlters
15 4.4 - Heaters
15 4.4.1 - Hot water coil
16 4.4.1.1 - Coils containing glycol
16 4.4.2 - Electric heater
17 4.4.3 - Electric heaters in combination with changeover coil
17 4.5 - Coolers
17 4.5.1 - Chilled-water coil
18 4.6 - DX-coils
19 4.7-Heatrecoverywheel
19 4.8-Plateheatexchanger
19 4.9 - Recirculation damper

HHCompact Air Handling Units | 3
20 4.10 - Fan
22 4.10.1 - Plug fans
22 4.10.2 - Frequency converter
22 4.10.3 - Plug fans with built-in EC motors
24 4.11 - Silencer
24 4.12-Lightning
24 4.13 - Control panel
25 4.14-Installationofexternalsensorsincluded
26 4.15 - Sensor replacement
Maintenance checklist
27 5.1-Checklistofcheckpointsandmaintenanceintervals
Maintenance and operating instructions
28 6.1 - General
28 6.2 - Casing panels
28 6.2.1 Inside installation
28 6.2.2 Outside installation
28 6.3 - Doors and access covers
28 6.4-Flexibleconnections
28 6.5-Earthing
28 6.6 - Dampers
28 6.7-Outdoorairintake
28 6.8 - Filters
29 6.9 - Heaters
29 6.9.1 Hot water coil
29 6.9.2 Electric heater
30 6.10 - Coolers
30 6.10.1 - Chilled-water coil
30 6.11-Heatrecoverywheel
30 6.12-Plateheatexchanger
30 6.13 - Recirculation damper
30 6.14 - Fan
30 6.14.1 General
30 6.14.2 Bearings
31 6.14.3 Transmissions
31 6.15 - Silencer
31 6.16 - Control
Abbreviations
AHU- Air Handling Unit
PED - Pressure Equipment Directive
BMS- Building Management System
SSR - Solid-state Relay
SUP - Supply Air
 ETA -ExtractAir
ODA- Outdoor Air
 EHA-ExhaustAir
 HMI-Human-MachineInterface
RH - Relative Humidity
VU - Ventilation Unit
NRVU - Non-Residential Ventilation Unit
BVU - Bidirectional Ventilation Unit
UVU - Unidirectional Ventilation Unit
 NOTE:Alldimensionsintheillustrationsareinmm

4 | HHCompact Air Handling Units
Safety Considerations
1.1 - General
TheHHCompactairhandlingunits(AHUs)havebeen
designedandmanufacturedinaccordancewiththeCE
machinedirective.Inordertoguaranteesafeoperation
anduseoftheunit,pleasecarefullyreadandobservethe
instructionsinthisdocumentandpayspecialattentionto
thewarningsthatapplytothisunit.Anymodicationsin
thedesignand/orinstallationoftheAHUthatarecarried
outwithoutpriordiscussionwithSystemairB.V.and
withoutadvancewrittenagreementwillresultintheloss
oftherighttoanywarrantyclaimsandanyclaimforinjury
topersonnelasaresultofthesemodications.
Allworkmustbecarriedoutbysufcientlytrained
personnel. All applicable personal safety devices must be
usedtoensuresafeworkingconditions.Safetyglovesand
glassesmustbewornforallmaintenanceoperations.A
respiratoryprotectionmaskmustbewornwhenchanging
thelters.TheA-weightedequivalentcontinuoussound
pressurelevelcanbeabove80dB(A),dependingonthe
motorsize,fansize,fanspeedandtheAHUinstallation
location.Thismeansthateardefendersmustbeworn,
whenthefanisrunning.
Alldoorsandhatchesmusthaveatleastonelockthat
canonlybeopenedwithaspecialdevice.Heatingand
cooling coils are manufactured and supplied in accordance
withguidelinesofthePressureEquipmentDirective(PED).
Donotwalkontheroofpanelsofunitsinstalledinsideor
outside.
Onlysufcientlyqualiedpersonnelisallowedtowork
on(electrical)components.Allpowersuppliestothe
unitmustbedisconnected,beforeanyworkcanbe
carriedout.Switchoffthesupplyvoltageusingthemain
disconnectswitch.
CAUTION:Ingeneralelectricheatershaveaseparate
supplyandmustbeswitchedoffseparately.
Ifworklightingisrequired,useonlylightingwith24V
maximum.Useofelecticalequipmentwithavoltage
above48Visonlypermittedifanearthleakageswitchis
installedthatcomplieswithlocalandnationalregulations.
1.2 - Applications
TheAHUisdesignedforthemovementandconditioning
ofair,unlessotherwiseagreedduringthedesignstage.
FromJanuary1st,2016AHUsmustcomplywithEU
regulation 1253/2014 implementing ErP directive
2009/125/EC,iftheyarewithinthescopeofthe
regulationandthedirective.
EUregulation1253/2014ispartoftheCE-marking.
Thisregulationappliesfor:
• ‘ventilation unit’ (VU) means an electricity driven
applianceequippedwithatleastoneimpeller,one
motor and a casing and intended to replace utilised air
by outdoor air in a building or a part of a building.
WhereanAHUisregardedasa:
• ‘non-residential ventilation unit’ (NRVU) means a
ventilationunitwherethemaximumowrateofthe
ventilationunitexceeds250m3/h,and,wherethe
maximumowrateisbetween250and1000m3/h,
themanufacturerhasnotdeclareditsintendeduseas
beingexclusivelyforaresidentialventilationapplication.
Theregulationdenestwotypesofventilationunits.
Thesemustbeplacedonthemarketorputintoservice,in
accordancewiththerequirementsofthisregulation.
• ‘unidirectional ventilation unit’ (UVU) means a
ventilationunitproducinganairowinonedirection
only,eitherfromindoorstooutdoors(exhaust)orfrom
outdoorstoindoors(supply),wherethemechanically
producedairowisbalancedbynaturalairsupplyor
exhaust
‘bidirectional ventilation unit’ (BVU) means a ventilation
unitwhichproducesanairowbetweenindoorsand
outdoorsandisequippedwithbothexhaustandsupplyfans
ThefollowingunitcombinationsareconsideredasaBVU:
• TwoormoreunitscombinedwithaRACheatrecovery
system
• Twoormoreunitsdirectly(withoutbuilding-side
ductwork)connectedwithamixingchamber.
Iftwoormoreunitsarecombinedasdescribedabove
on-siteinthebuildingbyathirdparty(forexampleinstaller),
aBVU(basedonCE-markedUVUs)willbe“putintoservice”.
Thismeansthethirdpartyhastodeclareproductconformity
withtherequirementsofaBVUandCEmarking.
Unitscanbesuppliedwithoutaccessoriesthatare
indicatedasmandatoryinregulation1253/2014.These
accessoriesmustbesuppliedandinstalledbyathirdparty.
Theaccessoriesthatarenotsuppliedbutmandatoryare
indicatedinthetechnicalspecicationoftheAHU,e.g.
fanswithvariablespeeddrive,thermalbypassdevice,heat
recovery,visualsignalingoralteralarm(2018regulation).
1.3 - Instruction types
Thefollowingwarningpictogramsandlabelswithtextare
used.
Lifting point
ThispictogramshowswheretheAHUmustbeliftedandis
positionedonthesupportbeam.

HHCompact Air Handling Units | 5
Lifting prohibited
Thispictogramshowsthatnohorizontaltransportdevices
mustbeplacedunderthisframesection,suchaspallet
liftersortheforksofforklifttrucks.Itisalsoforbiddento
placeliftingdevicesfortransportandstorageunderthis
frame element.
Earthing
ThispictogramindicateswheretheAHUcanbeearthed
andisononeofthesupportbeamsbeneaththecasingin
thefansection.Ifaunitconsistsofseveralsections,only
onesectionneedstobeearthed,providedthesectionsare
connectedinthecorrectway.
• TheelectricalcomponentsintheAHUmustbeearthed,
exceptforcomponentswithdoubleinsulationand/or
componentswithasupplyvoltagebelow50V.
• Theelectricalcomponentsmustbeinstalledin
accordancewithnationalandlocalregulations.
Rotating parts
Thispictogramindicatesthattherearerotatingpartsbehind
thisaccesscover,doororpanelwhichmaycauseinjury.
Thecomponentsthatincluderotatingpartsarethefanand
heatrecoverywheel.Iftherearespecialcustomer-specic
componentsbehinddoors,accesscoversorpanelsthat
includerotatingpartsandposeapotentialrisk,thisisalso
indicatedbythispictogram.
Hot surfaces
Thispictogramindicatesthattherearecomponents
behindthisaccesscover,doororpanelthatcancause
seriousburnswhentouched.Thesurfacesthatmaybe
hotaretheheatersurfaces.Iftherearespecial
customerspeciccomponentsbehinddoors,accesscoversor
panelsthathavehotsurfacesandposeapotentialrisk,
thisisalsoindicatedbythispictogram.
Electrical voltage
Thispictogramindicatesthatthereareelectrical
componentsbehindthisaccesscover,doororpanel
thatmaybedangerousfortheuser/installer.Only
qualiedpersonnelispermittedtocarryoutworkon
thesecomponents.Forthisworktheregulationsofthe
applicableinternational(e.g.IEC61557,EN50110and
ES 59009) and national (e.g. BS 7671) standards must be
observed.Thepictogramisattachedtotheaccesscover
fortheelectricheatercontrolbox.
Central data
ThislabelcontainsthedatafortheAHU,suchasorder
number,positionnumberetc.Thelabelisnormallylocated
ontheaccesscoverorthedoorofthefanassembly.Ifthe
AHUconsistsofseveralparts,eachpartmusthavealabel
withtherequireddata.
Opening the fan door
Thispictogramispositionedontheoutsideofthedoor
oraccesscoverofthefanassembly.Thispictogram
warnsthatthefanmusthavebeenswitchedoffand
deenergisedforaminimumoftwominutesbeforethe
doororaccesscoverisopened.Thispictogramalso
indicatesthattransportbracketsmustberemovedbefore
thefanisstartedup.
Systemair B.V.
Zanddonkweg 7a
5144 NX Waalwijk
The Netherlands HHCompact

6 | HHCompact Air Handling Units
! Waarschuwing !
Voor openen deuren, ventilator
uitschakelen, spanningsloos
maken en uit laten lopen
(minimaal 2 minuten).
Transportbeugels
Verwijder transportbeugels voor
opstarten ventilator.
! Warning !
Before opening the doors, switch
off and deenergise the fan and
allow it to run down
(minium 2 minutes)
Transport brackets
Remove transport brackets before
starting up the fan.
! Attention !
Avant ouverture des portes, le
ventilateur doit être déconnecté
et avoir eu le temps, de s’arrêter
completement
(2 minutes minimum)
Fixations de transport
Retirer les xations de trans-port
avant la mise en route.
! Gefahr !
Vor Öffnen der Türen den
Ventilator abschalten, span-
nungslos machen und zum
Stillstand kommen lassen
(mindestens 2 Minuten warten).
Transportsicherungen
Transportsicherungen vor der
Inbetriebnahme demontieren.
200034906
Other warning labels
! Waarschuwing !
Vervuilde lters zijn brandbaar.
! Warning !
Polluted lters are inammable.
! Attention !
Les ltres encrassés peuvent être
inammables.
! Gefahr !
Verschmutzte Filter sind leicht
entammbar.
200034907
! Waarschuwing !
Na het uitzetten van de
elektrische verwarmer moet de
ventilator nog
minimaal 5 minuten draaien.
! Warning !
After switching off the electric
heater the fan must continue to
run for at least 5 minutes.
! Attention !
Après la déconnexion de la
résistance électrique, le venti-
lateur doit continuer à tourner
pendant au moins 5 minutes.
! Gefahr !
Nach Abschalten der
Elektroheizung muss der Ventilator
noch mindestens 5 Minuten
weiterlaufen.
200034908
CAUTION: All doors and access covers must be closed
beforestartinguptheAHU.
Lifting and transport
AninstructionattachedtotheAHUdescribesthe
proceduresthatmustbefollowedforliftingandtransport.
Thefollowingchaptercontainsfurtherdetails.
1.4 - Disposal of parts/materials
• Thepackagingmaterialmustbedisposedofina
responsiblemannerandinaccordancewithlocal
regulations.
• Componentsthatarereplaced,mustbedisposedof
as described above.
Transport and lifting instructions
2.1 - General
TransportandliftingoftheAHUmustalwaysbein
accor-dancewiththeinstructionsbelow.Ifthese
instructionsarenotobserved,theunitmaybeirreparably
damaged,andpeopleintheimmediatevicinityofthe
unit are endangered. Systemair B.V. does not accept
anyresponsibilityiftheseinstructionsarenotobserved.
Transportandliftingmustbecarriedoutbyqualied
personnel.TheAHUmustonlybeliftedwithliftingbars
suppliedbySystemairB.V.(boxprole30x30x4mm,
quality52).Liftingmustbecarriedoutinaccordancewith
localregulationsandwiththehelpofcertiedliftingaids.
Only one set of lifting bars is supplied per order/position
numberperunitwidth(ifordered).Theseliftingbars
aresuitableforsingleuseandonlyforthepartsofthis
order/positionnumber.Theliftingbarsarecertiedbyan
authorisedpersonusingatypetest.
2.2 - Transport and storage
Duringtransportandstoragetheairhandlingunitmust
onlybesupportedunderthedesignatedliftingpoints.
Supportingandliftingunderthecrossbeamsisprohibited.
Thisisindicatedonthecrossbeamwiththefollowing
label.
2.3 - Roof edge protection during transport (outside
installation)
Roof edge transport protection
Duringtransportbytrucktheunitsareattachedtothe
loadingsurfacewithtieropes,pulledacrosstheunit
towardsthesideedgesofthetruck.
Toprotecttheroofedgeonoutsideunitsthatarewider
than1500mm,protectionplatesareaddedinplaceof
thetieropestopreventdistortionoftheroofedge.

HHCompact Air Handling Units | 7
2.4 - Ofoading and hoisting
DependingonthedimensionsoftheAHUandthe
situationonsite,theAHUsaresuppliedinpreviously
agreed transport sections.
Beforeproceedingwiththetransportandinstallation
ofthecasingsections,alwaysconsulttheapplicable
dimensionaldrawingsthatgivethedimensionsand
weightsofthesections,aswellastheinstallation
sequence.Theweightisgivenoneachtransportsection.
Eachtransportsectionisequippedwithasubframewith
fourliftingpoints.Thesepointsaremarkedbythelabel
shownbelow.
Forofoadingaswellashoistingliftingcablescanbe
attachedtotheliftingbars.Evenlypositionedspacerbars
shouldbeusedbetweentheliftingcablestoprevent
damagetothetopoftheunitandensurethatnoexcess
pressureisappliedtothesidepanels.Forhoistingplease
ensurethattheweightisevenlydistributed.
TheAHUmustnotberaisedunderthecrossbeamsduring
liftingormoving.Thisisindicatedbythelabelbelow.
2.5 - Horizontal transport
Forhorizontalmovementpalletliftersortransportskids
canbeplacedundertheinstallationframeorunderthe
liftingbars.Itisimportantthatthesesupportthelifting
points.Atnotimeshouldthecrossbeamsattheendsof
theunitsectionsbeusedforjackingortrackingtheAHU.
FOR HORIZONTAL TRANSPORT ALWAYS PROVIDE SUPPORT
UNDER THE LIFTING POINTS.Theuseofbarsasrollerscan
resultindamagetotheinstallationframe.
2.6 - Storage
ThepackaginginwhichtheAHUissuppliedcancause
condensationtobeformedbetweenthepackagingand
theAHU,iftheunitisstoredinanunconditionedplace.
IftheAHUisnotimmediatelyuseditisrecommendedto
storeitinaconditionedlocationon-site.IftheAHUiskept
outsideforashortperioddirectsunradiationmustbe
avoided.
Ifthefansareshutdownforalongerperiod(longerthan
threemonths)bearingdamagecanoccur.Toprevent
thisitisrecommendedtoloosenthebelttensionorto
temporarilyremovethefanbelts.Whenthefansare
re-startedthebelttensionmustberesettothespecied
tension.Controlledrotationofthefanimpellercanalso
preventthistypeofdamage.Thisisalsorecommended
for direct-drive fans.
2.7 - Assembly
Fortheassemblyofourunitspleaserefertoour
instructionmanual“Mountinginstructions”.
2.8 - Schematic diagram of an air handling unit with
controls
ThethreeversionsoftheHHCompactwithheatrecovery
andcontrolareshowninthefollwoingpagesinschematic
diagramswithashortdescription.Thedrawingsinthis
documentareforinformationonlyandshowthevarious
versions.Theydonotincludepossibleexternalsensorsor
controldevices.TheairowdirectionshownisfromLEFT
to RIGHT.
Thedimensionsgiveninthedrawings(HandW)refer
totheoutsidedimensionsoftheAHUcasing(excl.
connections and additional components). Dimension
W1ministherequiredserviceclearanceinfrontofthe
AHU.W1recistherecommendedserviceclearancein
frontoftheAHUtoreplacecomponents

8 | HHCompact Air Handling Units
Legend
A. Exhaustairdamper
B. Outdoorairintakedamper
C. Electricpre-heater(hotwater)
D. Supplyairlter
E. Extractairfan
F. Control panel
G. Face/bypass damper
H. Counter-owplateheatexchanger
I. Supply air fan
J Exhaustairlter
K. Electricreheater(hotwater)
L. Coolingcoilwithchangeover
M. Extractairdamper
N. Supply air damper
Dimensions
HHCompact C
Dimension in mm
H W W1min W1rec
0405 960 738 600 780
0506 1120 898 750 940
0606 1120 1058 900 1100
Legend
1. Actuator,outdoorairdamper
2. Pressuresensor,extractairfan
3. Frequencyconverter,extractairfan
4. Actuator,face/bypassdamper,plateheatexchanger
5. Frequencyconverter,supplyairfan
6. Pressuresensor,supplyairfan
7. Actuator,extractandsupplyairdamper(2x)
8. Maindisconnectswitch(supply),electricheater
9. Solidstaterelay,electricheater
10. Fuses,electricheater
11. Pressureswitch,supplyairlter
12. Mainsupplyconnection,controlpanel,electricheater
13. MaindisconnectswitchAHU(excl.electricheater)
14. Connection terminals
15. Pro Dialog control
16. Reset button
16. Connection terminals
17. Temperaturesensor,airintake
18. Relay
19. Temperaturesensor,extractair
20. Pressureswitch,extractairlter
21. Frostprotectionthermostat,heatingcoil
22. Temperaturesensor,DXcoilinlet
HHCompact C with high-efciency counter-ow plate heat exchanger - Sizes 0405, 0506 and 0606

HHCompact Air Handling Units | 9
HHCompact R with high-efciency heat recovery wheel - Sizes 0606, 0707, 0808, 0909, 1010, 1111, 1212, 1412
and 1416
Legend
A. Exhaust air damper
B. Outdoor air intake damper
C. Electric pre-heater (hot water)
D. Supply air lter
E. Extract air fan
F. Control panel
G. Motor, heat recovery wheel
H. Heat recovery wheel
I. Recirculation damper
J. Supply air fan
K. Extract air lter
L. Electric reheater (hot water)
M. Cooling coil with changeover
N. Supply air damper
O. Extract air damper
Dimensions
HHCompact R Dimension in mm
H W W1min W1rec
0606 1120 1058 900 1100
0707 1280 1218 700 1260
0808 1440 1378 700 1420
0909 1600 1538 700 1580
1010 1760 1698 700 1740
1111 1920 1858 700 1900
1212 2080 2018 700 2060
1412 2080 2338 700 2380
1416 2720 2338 700 2380
Legend
1. Actuator,outdoorairdamper
2. Pressuresensor,extractairfan
3. Frequencyconverter,extractairfan
4. Actuator,recirculationairdamper
5. Frequencyconverter,supplyairfan
6. Pressuresensor,supplyairfan
7. Actuator,extractandsupplyairdamper(2x)
8. Maindisconnectswitch(supply),electricheater
9. Solid-staterelay,electricheater
10. Fuses,electricheater
11. Pressureswitch,supplyairlter
12. Controller,heatrecoverywheel
13. Mainsupplyconnection,controlpanel
14. Maindisconnectswitch(excl.electricheater)
15. Connection terminals
16. Pro-Dialog control
17. Reset button
18. Temperaturesensor,airintake
19. Temperaturesensor,extractair
20. Pressureswitch,extractairlter
21. Relay
22. Frostprotectionthermostat,heatingcoil
23. Temperaturesensor,DXcoilinlet
24. Temperaturesensor,supplyair

10| HHCompact Air Handling Units
Legend
A. Outdoorairintakedamper
B. Extractairdamper
C. Electricpre-heater(hotwater)
D. Supplyairlter
E. Extractairlter
F. Recirculationdamper,plateheatexchanger
G. Plateheatexchanger,incl.face/bypassdamper
H. Control panel
I. Supply air fan
J. Extractairfan
K. Electricreheater(hotwater)
L. Coolingcoilwithchangeover
M. Supply air damper
N. Exhaustairdamper
Legend
1. Actuator,outdoorair,extractairdamper(2x)
2. Actuator,face/bypassand/orrecirculationairdamper,plateheat
exchanger
3. Frequencyconverter,extract/supplyairfan(2x)
4. Pressuresensorsupply/extractairfan(2x)
5. Actuator,supply/exhaustairdamper(2x)
6. Maindisconnectswitch(supply),electricheater
7. Solid-staterelay,electricheater
8. Fuses,electricheater
9. Pressureswitch,supplyairlter
10. Pressureswitch,extractairlter
11. Temperaturesensor,airintake
12. Temperaturesensor,extractair
13. Relay
14. Pro-Dialog control
15.  Mainsupplyconnection,controlpanel
16.  Maindisconnectswitch,AHU(excl.electricheater)
17. Connection terminals
18. Reset button
19.  Frostprotectionthermostat,heatingcoil
20.  Temperaturesensor,supplyair
Dimensions
HHCompact P Dimension in mm
H W W1min W1rec
0405 960 738 600 780
0506 1120 898 750 940
0606 1120 1058 900 1100
0707 1280 1218 700 1260
0808 1440 1378 700 1420
0909 1600 1538 700 1580
1010 1760 1698 700 1740
HHCompact P with cross-ow plate heat exchanger - Sizes 0405, 0506, 0606, 0707, 0808, 0909 and 1010