Setting - Baxi MULTIFIT Fitting & Setting Instructions

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Curve 10
Curve 30
Curve 25
Fig. 19
80
75
70
65
60
55
50
45
40
35
30
25
20
© Baxi Heating UK Ltd 2010
Fig. 16
Curve 15
Curve 30
Curve 20
Curve 25
Fig. 18
30
25
20
15 10
5
Outside Temp. (°C)

4.0 Setting

4.1
NOTE: Depending upon model of boiler either of two
types of Selector Switch and Central Heating Control
Knob will be fitted.
1. Ensure that there is power to the boiler (though it is
not necessary for there to be any heating demand). Turn
the selector switch to the boiler ON position (Fig. 16,
Curve 10
Combi versions illustrated).
Curve 15
2. The Central Heating Control Knob should be turned
clockwise to the position in Fig. 17 which corresponds
with the desired curve as shown on the graph below.
3. Normally the display will show the current temperature
Curve 20
of the water in the boiler (e.g. 41°C, Fig. 18). As the knob
is turned the display will show the selected curve (Fig. 19).
Fig. 17
For example, if Curve 25 is selected, at an outside
temperature of 5°C the boiler flow temperature will
be 57°C. In the event of the outside temperature
falling to 0°C, the boiler flow will increase to 63°C.
3. Continue with the installation and commissioning of the
boiler as described in the Installation & Servicing
Instructions.
4. Explain to the user how to select a different
temperature curve
15
10
0 -5 -10
Setting the Sensor Curve
-15 -20
7