Bailey Unicorn - Safety;Drain Valve (Operational); Draining the Water Heater; Closing the Drain Valve; Filling the Water Heater

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HEATINGSYSTEMS
Safety/Drain Valve (operational)
Fillingthewaterheater
Checkthesafety/drainvalveinthecoldwater
intakeisclosed.Levershouldbeinhorizontal
position,positione.
e= Leverposition“closed”
f= Leverposition“drain”
Openhottapinbathroomorkitchenwithpre-
selecting mixing taps or single-lever ttings
setto“hot”.
Switchonpowerforwaterpump(mainswitch
orpumpswitch).
Leave tap open to let air escape while the
water heater is lling.  The heater is lled
whenwaterowsoutofthetap.
Residues of frozen water can prevent lling
if there is a frost.  The water heater can be
defrosted by switching on the heater for a
short period.  Frozen pipes can be defrosted
byheatingtheroom.
Draining the Water Heater
!
Ifthecaravanisnotusedduringthe
wintertheboilermustbedrained
Disconnectpowerforwaterpump.
Openhotwatertapsinbathroomandkitchen.
Open safety/drain valve: Lower the lever in
verticalposition;positionf.
The water heater is now drained directly to
theoutsideviathesafety/drainvalve.Check
thatthewatercontentshavebeencompletely
drained(10litres).
Closing the Drain Valve
Checkiftherotaryswitchissetto“Operation”,
meaning that is it parallel to the water
connectionandengaged.
Close the drain valve by activating the push
button.  The push button must engage in
position.
Onlywhen the temperature aroundthedrain
valve is over around 7°C can it be closed
manuallywiththepressbuttonandtheboiler
lled.
Truma supplies a heating element (part
number;70070-01)asanaccessory,which is
inserted into the Frost Control and xed in
place with a retaining bracket.  This heating
element heats the Frost Control to approx.
10°C when the Combi is switched on.  This
means that the boiler can be lled after a
shortertime,irrespectiveofthetemperature
intheinstallationcompartment.
Manual Operation of the Drain Valve
Turntherotaryswitchby180degreesuntilit
engages,wherebythepushbuttonmovesout.
Thewaterintheboilerdrainsoutthroughthe
drainagemuff.
!
TheFrostControldrainagemuffmust
befreeofcontamination(slush,ice,
leavesetc)atalltimessothewater
candrainouteasily.Thereshallbeno
claimsunderguaranteefordamage
causedbyfrost.
Filling the Water Heater
Checkiftherotaryswitchforthedrainvalve
issetto“Operation”meaningthatitisparallel
tothewaterconnectionandengaged.
Close the drain valve by pushing the button
untilitengages.
When the temperature at Frost control is
below about 7°C, rst switch on the heater
to warm the installation compartment and
Frostcontrol.Afterseveralminutes,whenthe
temperatureatFrostcontrolisabove7°Cthe
drainvalvecanbeclosed.
Switch on power for water pump (main or