Cleaning The Condensate Pan; Testing The Gas Supply Pressure; Measure Gas/Air Ratio - Bosch Condens 5000W Installation And Maintenance Instructions Manual

11.7

Cleaning the condensate pan

If the siphon is soiled, check and clean the condensation catch pan as
necessary.
▶ Pull the condensate hose down and turn it towards the rear.
Fig. 63 Remove the condensate hose
▶ 2 Release snap fasteners.
2.
1.
Fig. 64 Opening the snap fasteners of the condensation catch pan
Condens 5000W – 6720813952 (2019/02)
▶ Remove condensate pan.
Fig. 65 Removing the condensate pan
▶ Clean the condensation catch pan.
▶ Check the gasket between the condensation catch pan and heat
exchanger for damage and replace if necessary.
▶ Place condensation catch pan under the heat exchanger.
▶ Push condensation catch pan completely up to the heat exchanger.
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▶ Close the snap fasteners.
▶ Reinsert all components in the reverse order.
▶ Bring wall mounted gas condensing boiler into operation.
▶ Check the various gaskets at the condensation catch pan during
operation for flue gas and condensate leaks.
11.8

Testing the gas supply pressure

See chapter 8.7 "Testing the gas supply pressure".
11.9

Measure gas/air ratio

▶ Take the wall mounted gas condensing boiler out of operation.
▶ Close gas isolation valve.
▶ Undo the nozzle pressure test nipple [1] by turning it through
2 revolutions.
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Fig. 66 Opening the burner pressure test nipple at Type 70
Inspection and service
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