Inspection and maintenance
Condens 7000 F – 6720871560 (2019/11)
32
11.2
Detailed overview of boiler components
Fig. 34 Detailed overview of components (illustration shows 200-
300 kW rating)
[1]
Ignition electrode
[2]
Gas pressure test nipple
[3]
Temperature switch
[4]
Fan
[5]
Power supply plug
[6]
PWM signal plug
[7]
Gas burner casing
[8]
Monitoring electrode
[9]
Combustion air intake connector
[10] Test cable for gas outlet pressure (white gas line)
[11] Plug-in connector for compensation/ionisation line
[12] Siphon
[13] Condensation catch pan
[14] Differential pressure switch (p
1
-blue gas line, p
2
-white gas line)
[15] Burner control unit
[16] EMC butterfly valve
[17] Compensation line (blue)
[18] Gas pipe
[19] Offset setting, sealed
[20] Air/gas ratio control valve
[21] Valve check system
[22] Ignition transformer
[23] Gas pipe
Fig. 35 Detailed overview: position of sensor
[1]
Flow temperature sensor
[2]
Flue gas temperature limiter (optional; mandatory accessory
for Switzerland)
[3]
Flue gas pressure limiter.
[4]
Water pressure sensor
[5]
Return temperature sensor
[6]
Safety temperature limiter (on the first centre section,
on the left under the thermal insulation)
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