Table of Contents
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1
19
18
17
16
15
13
6
12
11
10
24
21
© Baxi Heating UK Ltd 2009
8
14
9
25
26
27
28
29
31
32
33
30
22
2.0 General Layout
2.1
Layout
20
1.
Air Pressure Switch
2.
Expansion Vessel
3.
Burner Manifold
4.
Automatic Air Vent
5.
DHW Plate Heat Exchanger
6.
Circulation Pump
7.
Drain Off Point
8.
Pressure Relief Valve
9.
Optional Integral Timer
2
10.
Central Heating System Pressure Gauge
11.
PCB
12.
Control Box
13.
3-Way Valve Assembly
3
14.
Condensate Trap
15.
Flame Sensing Electrode
4
16.
Spark Electrode
5
17.
Burner
18.
Primary Heat Exchanger
19.
Fan Assembly
20.
Secondary Heat Exchanger
21.
On/Off/Reset Selector Switch
7
22.
Central Heating Temperature Control
23.
Hot Water Temperature Control
24.
Flame Failure or Blocked Condensate Drain
25.
Safety Thermostat Activated (Boiler or Flue)
26.
Fault on Fan or Flue
27.
Fault on Pump or Low System Pressure
28.
Fault on Hot Water Sensor
29.
Fault on Central Heating Sensor
30.
Power On
31.
Domestic Hot Water Mode
32.
Central Heating Mode
33.
Burner On
When neons 24 to 29 are constantly illuminated, they
indicate the temperature of the central heating water.
23
2
1
3
0
4
bar
9
10
7
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