Technical Data - Baxi 47 075 35 Installation & Servicing Instructions Manual

Fig. 3
IMPORTANT: When the selector switch is in the '0' (Off) position the electrical supply to the boiler is isolated.
The boiler will not operate and the integral timer will require resetting once the selector switch is set to either
Position (i) or Position (ii).
3.3 Frost Protection Mode
1. The frost protection mode is integral to the appliance and functions only with the selector switch (see Section 2.1) in the domestic
hot water and central heating position. If the system temperature falls below 5° C then the boiler will fire on its minimum setting until
a flow temperature of 30° C is reached. Further protection can be incorporated by using a system frost thermostat.
3.4 Pump Protection
1. With the selector switch (see Section 2.1) in either the central heating or central heating and domestic hot water position, the pump
will automatically operate for 1 minute in every 24 hours to prevent sticking.
page 9
4.0 Technical Data
4.1 Duo­tec Combi 24, 28, 33 & 40 HE A
Appliance Type
Appliance Category
Heat Input CH
24 model
28 model
33 model
40 model
Heat Input CH (Gross)
24 model
28 model
33 model
40 model
Heat Output CH
24 model
28 model
33 model
C13
CAT I 2H
(Net)
kW
kW
kW
kW
kW
kW
kW
kW
(Non­Condensing)
kW
kW
kW
C33 C53
Max Min
20.5 7
24.7 9
28.9 9.7
32.8 9.9
Max Min
22.7 7.8
27.4 10
32.1 10.8
36.4 11
Max Min
20 6.8
24 8.7
28 9.4