Operating instructions

2.0 Introduction
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2.1 Introduction
1. Your Baxi System 100 HE Plus is a high efficiency
condensing boiler, providing central heating for your home
and domestic hot water.
2. Due to the high efficiency and the resulting low flue gas
temperature a white plume of condensate will be emitted
from the flue outlet terminal. This will be particularly
evident during periods of low outdoor temperatures.
3.The very high efficiency of these boilers also results in the
flue gasses cooling to the point where part of their
moisture content condenses inside the boiler, giving up
further heat as it does so. The condensate is drained to a
suitable disposal point through the plastic waste pipe at the
bottom left of the boiler. This must must not be modified
or blocked.
2.2 Operating the Boiler
1. To access the control panel, hinge down the lower door
panel (Fig. 1).
2. Turn on the main gas and electricity supplies to the
appliance.
3. Set the flow temperature control knob to the required
setting (Fig. 1). (The optimum boiler setting depends upon
type of system, external controls and your requirements.
Your installer will be able to advise you on this matter.)
4. The fan will start to run and after a short period the
ignition spark will commence. Sparking will continue until
the flame is established then stop automatically. Check that
both the Mains ON light (ON) and Burner ON light ( )
are on (Fig. 1).
2.3 To shut down the Boiler
1. Isolate the electricity supply to the appliance at the
Fused Spur.
2. Turn off the gas supply at either the appliance gas cock
or the meter.
2.4 Frost Protection
1. the boiler does not have integral frost protection. It is
recommended that the installer fits a suitable protection
device to the system controls if required. For frost
protection the boiler must not be switched off at the
isolation switch on the wall.
Lower Door Panel
Flow Temperature
Control
Fig. 1
Low
High
ON
Reset
Reset
Button
Burner ON
Light - Green
Mains ON
Light - Green
Fault
Light - Red