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1
12
11
10
9
8
13
19
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8
© Baxi Heating UK Ltd 2011
20
Item 20 is on 28 kW model only. All
illustrations show 33/40 models.
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3
2.0 General Layout
2.1
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
7
14.
15.
16.
4
17.
5
18.
19.
6
20.
18
Layout
Expansion Vessel
Expansion Vessel Valve (N.B. NOT air vent !)
Primary Heat Exchanger
DHW Plate Heat Exchanger
Pump with Automatic Air Vent
Central Heating System Pressure Gauge
Fan Assembly
Air/Gas Collector
Ignitor
Flame Sensing Electrode
Spark Ignition Electrode
Combustion Box Cover & Burner
Control Box Display
Condensate Trap
Safety Pressure Relief Valve
Drain Off Point
Gas Valve
Diverter Valve Motor
i-THINK Controller
Air Box (28 kW model ONLY)
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