Baxi Combi 133 HE Plus User Operating Instructions Manual page 3

Lower Door Panel
Fig. 1
1.0 Introduction
1.1 Introduction
1. Your Baxi Combi 133 - 100 - 80 HE Plus are gas fired,
room sealed, powered flue condensing combination
boilers, providing central heating for your home and mains
fed domestic hot water. It is fully automatic and does not
have a pilot light. Boiler frost protection and pump
protection are an integral part of the appliance.
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.
4. Priority is given to the hot water mode - when a hot
water tap is turned on the supply of heat to the central
heating circuit is interrupted.
1.2 Operating the Boiler
1. The externally mounted Baxi Intellistat, integral Baxi 12
Hour Timer Kit or other type of clock should have been
fitted in your system, together with heating controls. Full
instructions on the use of these controls will have been
supplied with them.
2. Hot water will always be available when a hot tap is
opened.
3. Central heating will be available if the Summer/Winter
switch is set to Winter and the timer (or other clock) is set
correctly. It is also dependent on the setting of any room
thermostats or thermostatic radiator valves. Refer also to
Section 3.2 Protection & Precautions on Page 5.
To access the control panel, hinge down the lower door
panel (Fig. 1).
When the boiler is in its standby state, the only visible light
should be the Green 'Mains ON'.
NOTE: All Illustrations show the Combi 133 HE Plus
unless otherwise stated.
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