Bosch Condens 7000 WP - Cleaning the Siphon; Installing the Gas-Air Unit

Inspection and maintenance
Condens 7000 WP – 6721842519 (2022/03)
34
▶ Where required, clean the condensation catch pan with water.
Fig. 38 Open the cover of the condensation catch pan.
10.7 Cleaning the siphon
▶ Remove the flexible hose, and possibly the tee, from the siphon.
▶ Unscrew the union nut of the siphon in the boiler and completely
screw open [1].
▶ Remove siphon [2].
Fig. 39 Remove the boiler siphon
▶Flush the siphon.
▶ Fill the siphon completely with water.
▶ Reattach the siphon.
▶ Check whether the neck of the siphon is properly connected to the
condensation catch pan.
▶ Tighten the union nut hand tight.
10.8 Installing the gas-air unit.
▶ Clean the contact surfaces of the heat exchanger.
▶ Reinsert the burner back into the heat exchanger
▶ When reinserting, observe the position of the centring axis [1].
▶ Tighten the screws (3 Nm) [2].
Fig. 40 Installing of the burner
▶ Install the new burner gasket [1].
▶ Position the gas-air mixing pipe.
▶ Tighten the nuts on the gas-air mixing pipe (17 Nm) [2].
Fig. 41 Installing the gas-air mixing pipe
▶ Connect the plug on the fan.
▶ Install the air collector [1].
0010040896-001
1.
2.
0010040938-001
2.
1.
0010040886-001
1
23 Nm
0010040884-001
1
217 Nm