Bailey Unicorn - 20. Heating Systems; Operating Instructions; Description of Functions; Gas Heating

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HEATINGSYSTEMS
20. HEATING SYSTEMS
ALDE HEATING SYSTEM
!
Alwaysreplacetheheattransferuid
(HTF)inaccordancewiththe
antifreezeproduct’slifespan.Ifinany
doubt,replacetheHTFafter2years.
The corrosion inhibitors found in ethylene
glycolantifreezemaynotbecross-compatible.
WhentoppinguporreplacingtheHTF,ensure
the new antifreeze is compatible with the
currentantifreezeproduct.Readtheproduct
labelorcontacttheproductmanufacturerfor
details.
Operating Instructions: 3020 Compact High
Efciency Boiler
!
Aldecanacceptnoliability
whatsoeverfordamageorinjury
resultingfromfailuretoobservethese
instructions.
SpeciedUse
TheseinstructionsareapprovedfortheAlde
3020 Compact HE boiler tted in caravans,
motorhomes or buildings in accordance with
CE0402no.SC0653-13,andhavetheE5mark
forinstallationinvehiclesinaccordancewith
ECER122,no.00001andR10,no.04166,for
useincentralheatingandhotwatersystems.
Theboilerisnotintendedforusebypersons
(including children) with reduced physical,
sensory or mental capabilities, or lack of
experience and/or knowledge, unless they
havebeengiveninstructionoraresupervised.
The term “specied use” also covers
observance of the operating and installation
instructions.
The Alde 3020 Compact HE boiler must be
installedorrepairedbyacompetentpersonin
accordancewithcurrentlocalregulations.
Intheunlikelyeventthatyourboilerdevelops
afault,switchofftheboilerandcontactAlde,
oryourdealerorinstaller.
Operatingandinstallationinstructionsforthe
Aldecontrolpanelaresuppliedseparately.
The owner is always responsible for
maintenanceandarranginginspection.
BoilerDesign
Theboiler’sinternalheatexchangerconsists
ofthreeconcentriccylinders:thecombustion
chamber,thecentralheatingcylinderandthe
hotwatercylinder.
The combustion chamber is made from
aluminium, and is divided into two halves by
a bafe plate, with the burner head located
in the top half, and the ue gases venting
throughthebottomhalf.
Thecombustionassemblyisxedtotheend
of the internal heat exchanger. It consists
of the burner, combustion fan, gas valve, air
intakeandexhaustducts,andgasline.
Two electric heating elements are sealed
inside the central heating cylinder, one for
1kW,onefor2kW.
Description of Functions
Gas Heating
Whengasheatingissetto“On”thecombustion
fanstartstorevolve.Oncethecorrectspeedis
achieved(inrpm),asignalissenttothePCB
(Printed Circuit Board) for the burner to be
lit.Thegasvalveopens,passinggas,andthe
ignitionmoduleonthePCBgeneratessparks
attheelectrodeontheburnerhead.
Whentheburner ignites,a amesupervision
device (FSD) signals the ignition module to
cease sparking. The burner res until the
boilerorroomthermostatreachtheset-point.
Shouldtheburnerameoutunexpectedly,the
FSDdetectsthisandattemptstoreignite(for
about10 seconds),beforeshuttingdownand
raisingafaultcode.
i
Listen carefully to the ignition
sequenceoftheboiler.Youshouldhear
the whirl of the combustion fan, the
clunkofthegasvalveandthetick-tick
oftheignitionmodule.
Electric Heating
When electric heating is set to 1, 2 or 3kW,
relays on the PCB trip, feeding the 230 v
supplytotheelectricheatingelements.These
arecontrolledbythesameprogrammeasthe
gasheating.
Domestic Hot Water
Thecombi-typeboilerautomaticallyproduces
hot water. Heat is emitted from the central
heating cylinder into the hot water cylinder.
If the hot water cylinder is empty, the air is
heatedbutnodamagecanresult.