Quick Reference Guide - Baxi COMBI 105 HE User Operating Instructions Manual

o
30
Reset
ON/OFF/Reset
Selector Switch
Reset
OFF Position
The boiler will not operate.
o o o o
30 40 50 60
Indicator
Neons
2
1
3
0 4
bar
© Baxi Heating UK Ltd 2009
o o o o o
40 50 60 70 80
Indicator Central Heating
Neons Temperature Control
Reset
Central Heating & Hot Water
Both Heating & Hot Water will operate.
o o
70 80
Domestic Hot Water
Temperature Control
Reset
Domestic Hot Water
Hot Water will operate.
Power On Indicator - The indicator will illuminate when there is power to the
boiler.
Domestic Hot Water Indicator - The indicator will illuminate when hot water
is being supplied to a tap or shower.
Boiler On - The indicator will illuminate when there is a demand for heat to
the boiler.
Burner On Indicator - The indicator will illuminate when the burner has fired
and is heating your central heating or domestic hot water.
Central Heating Temperature Control
Turn the knob clockwise to increase or anticlockwise to decrease the
temperature. Range 30 - 85° C.
Domestic Hot Water Pre-Heat Temperature Control
Turn the knob clockwise to increase or anticlockwise to decrease the
temperature. Range 35 - 65° C.
Central Heating System Pressure - The normal operating water pressure is
between 1 and 2.0 bar. If the pressure exceeds 3 bar the safety pressure valve
will operate and a fault is indicated. Contact your Installer.

1.0 Quick Reference Guide

2
1
3
0 4
bar
System Pressure Gauge
Reset
Hold for approx 5 seconds and release.
Position of
Optional Timer
Reset
3