Bailey Unicorn - Mixed Mode; Maintenance; Fuse 12 V; Fuse 230 V

79
HEATINGSYSTEMS
!
Ifthe230vpowersupplyis
interruptedforjustabriefperiodof
approximately1secondduring
operation,theheaterwill
subsequentlyresumeasnormal.
Mixed Mode
Malfunctioninthepowersupply230v.
TheyellowLEDonthepowerselectorswitch
goesoffandtheredLEDonthecontrolpanel
asheswith5Hz.
If in mixed mode the 230v power supply
is interrupted the heater automatically
switchestogas mode. As soonasthe230v
power supply is available again the heater
automaticallyreturnstothemixedmode.
Possible causes can be found in the
troubleshootinglist,pages78&79.
Faultinthecombustionprocess.
TheyellowLEDonthepowerselectorswitch
shinesand the red LEDon the controlpanel
alsoshines.
If the ame goes out in mixed mode (e.g.
emptygascylinderorclosedexhaustoutlet),
theheaterautomaticallyswitchestoelectrical
mode.Iftheheaterrunsinmixedmodeagain,
thecauseforthefaultneedstoberemedied
andthecontrolpanelneedstobeswitchedoff
andonagain.
Possible causes can be found in the
troubleshootinglist,pages78&79.
Maintenance
Only original Truma parts may be used for
maintenanceandrepairwork.
The device must be de-scaled on a regular
basis(atleasttwiceayear).
WerecommendtheTrumasystemcaresetfor
cleaning, disinfecting and looking after the
boiler.Otherproducts–inparticularproducts
containingchlorine–areunsuitable.
Theeffectiveness of the use of chemicals to
combat micro-organisms in the unit can be
increasedbyheatingthewaterintheboilerto
70°C.atregularintervals.
Movepowerselectorswitchtogasoperation
todothis.
!
Movetherotaryswitchonthecontrol
panelto60°C.Thegreenandyellow
LEDslightup.
Once the water in the boiler has reached
temperature of 60°C, the burner will switch
off and theyellow LED will goout.  The unit
muststayswitchedonforatleast30minutes
and no warm water may be removed.  The
residualheatin theheatexchangerwillheat
thewaterupto70°C.
Fuse 12v
The fuse is in the electronics beneath the
connectioncover.
Replacetheunit’sfuseonlywithanidentical
fuse.
Devicefuse10A–low–(T10A)
Fuse 230v
Thefuseandthepowersupplylinesmustonly
bereplacedbyanexpert.
The unit must be disconnected from the
mains(allpoles)beforeopeningtheelectronic
housinglid.
The fuse is in the power electronics (16)
beneaththeelectronichousinglid.
Thisnefusemustalwaysbereplacedwitha
fuseofthesametype:10A,slow,interrupting
capacityH.