Vaillant COMBI-HEATER VCW User manual

ffi lnstructions
forUse
Vaillant
Combi-Heater
VCW
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Vaillant H

Dear Customer!
All you need to know aboutyour VaillantCombiHeaterincludingitsVaillantAccessorleshasbeencompiled
in theseinstructions,
so thatyou
will find:
ln the left column a serlesof illustrations
demonstratingstepby stepthe whole
proce-
dure.
ln the centercolumnyou will findallneces-
sary
information
whichexplainsthe illustrated
Drocedure.
ln the right column additional
information
whichmayprove interesting
and usefulfor
servicingand handling.
lntroduction
Please
notethatthe
installationof
your
VaillantCombi
Heater
shouldbeundertakeninaccordancewiththerelevant
CodesofPractice
by
BritishGasorbyanauthorized
installer
(CORGI-member)
only.This
appliance
must
beearthed.
Starting
Check
thatelectricalsupply
is
switched
on.
Check
thatthe coldwater shut-off
valve
@
and boththeflow and return
servicecocks
@ and@ areopen.Alsocheckthatthe
gasservice
cock@ isopen.lf anyof these
areclosed,
a serviceengineermustbe
called.
Normallytheservice
cocksareopen.
Should
you
findthem
closed,
theline
markingwill crossthe runof thepipes.

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Check of water contents
Check
thewatercontents
of thesystem.
The black
hand
of the pressuregauge
@
shouldbe between
the redhandand
the
number1.lf it isnot,a serviceengineer
mustbecalledto refillthesvstem.
To light the pilot
Pressthegreen
push
button
@ andlight
the pilot, eitherbya lightedtaper
through
the viewing
window
@ or, in the case
of
the VCWsinemodel,byturningthespark
ignitor
knob
@.
Afterignitionkeepthegreen
buttonde-
oressed
for about10 seconds.
SHOULD
THEPILOT
BEEXTINGUISHED
FORANYREASON,WAIT
AT LEAST3
MINUTESBEFORE
ATTEMPTING
TORE.
LIGHT.
A heating
installation
supplying
several
floorsmay
haveother
figures
forthewater
contents.
Pleaseconsult
your plumber.
Topping
upshould
only
be
carriedout
by
a
service
engineer.
Where
toppingup isrequired
regularly
e.g.
once a week,
thereisa leakon thesystem
which should
be rectified
immediately.
Frequent
toppingupwillshorten
the life
of your boiler
and reduce
the boilers
eff
iciency.
The appliance carries
a thermoelectric
flame
failuredevice
which prevents
the
escape
of unburned
gas.
Should
the
pilot
flamego out whenthe knob
@ isreleased
WAITAT LEAST3 MINUTES.Repeat
pro-
cedureand keepthegreen
knob
depressed
for a longer
period
soallowing
theairto
escape
from the pilotline.

Settheflow thermostat
@as
follows:
SpringandAutumn
Moderate
outdoortemperatures
Low
outdoortemperatures
Theflow thermostatisinfinitelyadjustable
so thatthe appliance
will operate at any
setting
withinthe range.
Whenthe mainswitchlightsup,theapp.li-
ancecan be ooerated.
Themain
switch
shouldonly beoperated
if the appliance is
correctly
filledwithwater.
Otherwisethe
heating
pump
willbedamaged.
At thisstage
yourVaillantCombi
Heater
is ready
to supply
hotwater.
1-2
3-4
7
-8
."1
!
.J
Switch on main switch
Push
mainswitch
@ intoposition
1.
Attention
The main
switchshould
onlybeoperatedif
* asdescribedunder
"Check
water
con-
tents" on page 3- theapplianceiscor-
rectlyfilledwith water.
Otherwisethe
heating
pumpwill bedamaged.
tr
/
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.{
Setting
roomtemperature
Setthe
roomthermostat
orradiator
ther'
mostatstothe
temperature
required.
Switchon healing
by
movingheating
switch
@into posi'
tion
1.
Please
proceed
with the setting
as indi-
catedin the separate
setting
instructions
attached
to the thermostats.
Duringsummer
timeswitch-off
thehea-
ting switch @.
Inthe
"OFF"-position
your
VaillantGombi
Heaterremains
operative
for the hot
watersupply.
a?
I

Tapping hot water
On opening
hotwatertap
@ ata supply
point (basin,
shower,sink)
theCombi
heateratfullyopenedtapautomatically
supplies
large
quantities
of hotwater,at
about half-openedtap,smaller
quantities.
By mixingin coldwater
you canadjustto
any requiredlowertemperature.Onclosing
the tap the applianceautomaticallycuts
out or changesto heating.
Domestic hot waler switch
Thisswitch is intendedfor usewhenthe
heatingsystemis turnedoff for a long
periods
(heating
switch must be in "OFF"-
position).
It will provide a "top-up" of heat to keep
the water in the boiler
warm.
However,the use
of this switch isoptional
and we wouldgenerally
recommend
thisswitch
isleftinthe
"OFF"-position
throughoutthe year.
Should
you- on opening
the hotwater
tap- obtainan insufficientwatersupply,
please
checkif a possibly
installed
water
cock @ aheadof thetap is
fully
opened.
Alsocheckif sediments
obstruct
theout-
flow regulator
@ insidethe spout.
For
cleaning
thisjust unscrew
it anticlockwise
out of the spout.
Thesupply
of hotwater
precedes
the heatingsystem,
yet
hasno
disturbingeffect
on thesteady
heatingof
vour rooms.

To turn ofl heater
a) TOTURNOFF
THECENTRAL
HEATING
ANDHOTWATER
FORSHORT
PERI-
ODS
OF
TIMEpush
the mainswitch
@
to oosition
"0".
b) To TURN
OFF
THECENTRAL
HEATING
ONLY
for an SHORT
PERIOD
of time,
switch
off by pushing
the heatingswitch
@ to position
"0".
c) TOTURNOFF
THE
APPLIANCE
COM-
PLETELY
FOR
LONGER
PERIODS
of
time,as
wellasswitching
offthemain
switch
@, press
the redbutton
@ to
shutoff the pilot.
Careand Maintenance
Clean
theenamelled
outer
casing
of the
heater
with a damp clothanda littlesoap.
Do not useanyabrasive
or dissolving
clea-
ning
material
whichcould
damage
the
enamel
or plastic
fittings.
It is recommended
thatthe heater
receives
an annualservice
to ensure
that it con-
tinues
to work safely
andefficiently.
En-
quireat your installeror local
gasregion
for detailsof a servicing
scheme.
Please
makesure
thateven
in your
ab-
sence
the heatingsystem
remains
in
operation
during periods
of possible
frost
so thatthe rooms
aresufficiently
heated.
Shouldyou leave
yourroomonly for a
shorttime,
it will suffice
to switch
themain
switch
@ to "0" andpress
the redknob
@.
Whenaway
longer,
(i.
e.summer
holidays)
you should
also
close
thecoldwatershut-
off valve
@.
This may
not be necessary
if sufficient
antifreeze
hasbeen
added
to the
wateror
allwaterhasbeen
properly
drained
both
out of the heating
system
andtheappli-
ance.

laIN
t@.
ys)
ut-
@ Gasservice
cock
@ Cold
watershut-off
valve
@ Service
cock
flow
@ Service
cockreturn
@ Pressure
gauge
@ Push
bottom
(green)
@ Viewing
window
@ Setting
knob
flowthermostat
@ Mainswitch
@ Room
thermostat
@ Radiator
thermostat
@ Heating
switch
@ Hot
watertap
@ Shut-off
valve
@ Wateroutlet
@ Switch
fordomestic
hotwater
@ Pushbottom
(red)
@ FlowThermometer

Europe'sbig namein hotwater,heatingand
controls
Mvaillant
CentralRegion Office
VaillantLtd.
Unit5
Providencelndustr.Estate
Providence
Street
Lye
-Stourbridge
WestMidlandsDY9
8
HQ
Tel.:
0384-8918
16
(Sales)
0384-893368
(Service)
Headquarters
VaillantLtd.
VaillantHouse
MedwayCity Estate
TridentClose
Rochester/ Kent
ME2 4EZ
Tel.:
0634-290
155
(Sales)
0634-290144 (Service)
NorthernRegion
Office
VaillantLtd.
Vaillant
Building
Euroway
Estate
Wharfedale
Road
Bradford
West
Yorkshire
BD4
6SR
Tel.:[phone] (Sales)
O274-688822 (Service)
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