17
GB-063C_f.615
BOILER CONTROL PANEL
OFF
0
30
40
1
3
5
2 4
Front Control Panel LED introduction;
[1] - Power Indicator
[2] - Boiler Operation Indicator
[3] - Heat Call Indicator
[4] - Low Water Indicator
[5] - On/Off & Temperature Dial
User instructions,
TheControlpanelislocatedontheoutsideboilercover.Itconsistsofadualpurposedialthatallowsyouto
selecttheboilerOutputTemperatureorSwitchtheBoilerOnorOff.Toswitchtheboiler“Off”Yousimplyturn
thedialAnticlockwisetothe“Offposition.”Indicator(1)willashandtheboilerwillshutdownandstopheat-
ingthesystem.Thepumpwillrunforafurther90secondsthenturnoff.Iftheboilerisleftintheoffposition
thecontrolsystemwillrunthepumpperiodicallytopreventsystemfailure.
Toswitchtheboiler“On”simplyturnthedialClockwisetoyourdesiredtemperaturesettinggenerallyaround
65degC.Theboilerwillnowsitinstandbywaitingforacallfromtheexternalcontrolstoreandheatthe
systemwhenrequired.
LED Functions and Fault Finding
FUNCTIONS
ON-OFF
STAND-BY
BOILER
HEATING
CALL FOR
HEAT
WARNING
INDICATOR
All LED’s Off
CheckthatMainPowerisON?
Check–WT3OverHeatStat?IfWT3
requiresre-setinginvestigatethecause!
off
off
off
off
Boiler is ON
WaitingforCallfromexternalcontrols.
on
off
off
off
Boiler is ON and running.
ExternalControlsareCallingforheat
on
on
on
off
Low Water Level
TopupHeatingSystemWaterLevel.
off
off
off
on
Temperature Sensor Failure.
Theboilerwillstillheatiftheinletsensorhas
failedbutnottheoutletsensor!
ReplaceBothSensors.
Overheatingcanbepossible(“MaxInlet
temperaturereached”-condition).Controller
decreaseapowerinthissituation.
off
ashing
off
on
Max Inlet Temperature reached.
Nodemandfromsystem.
on
off
ashing
off
Boiler Off
LEDwillashfor90secondsuntilthepump
stops.
ashing
off
off
off
Figure 3