Vaillant ecoMAX 665 Installation And Maintenance Manual

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Vaillant ecoMAX 665 Installation And Maintenance Manual Manual pdf 30 page image

30 Installation and maintenance manual ecoMAX 665After cleaning, reinstall all condensate path components(see siphon operating instructions). Make sure you fillthe cartridge with water. Fit new seals at all locationsand test the condensate path for leakage.11/32/3b.c.a.835311_00 102004ecoTEC123Fig. 7.5 Cleaning the siphon (2)7.2.4 Checking the burnerThe burner is maintenance-free and needs no cleaning.The surface should be checked for damage, and theburner replaced if necessary.• After checking/replacing the burner, install the com-pact thermo module as described in 7.2.1.7.3 Draining the appliance and the system7.3.1 Draining the appliance• Close the appliance‘s maintenance cocks.• Open the drain valve in the return.• Open the air-release valve on the cylinder supply con-nection in order for the appliance to be completelydrained.7.3.2 Draining the entire system• Attach a hose to the system‘s drain point.• Bring the open end of the hose to a suitable dischargepoint.• Make sure that the boiler‘s maintenance cocks are open.• Open the draining cock.• Open the air-release valves on the radiators. Startwith the radiator that is highest up and then continuedownward.• When the water has run out, close the radiators‘exhausts and the draining cock again.7.3.3 Cleaning the air barrelDanger!There is danger of being injured or scalded at allcomponents carrying water. Only carry out workon these components once they have cooleddown.• Dismount the air barrel as shown in fig. 7.6 and rinseit with hot water.• Remount the air barrel and make sure to use newseals (SP no. 981272).1.2.3.Fig. 7.6 Cleaning the air barrel7.4 Filling and bleeding the systemProceed as described in point 5.1.2.7.5 Checking the gas settingPerform a gas setting check as described in chapter 5.2.7.6 Test operationAfter the maintenance work has been completed, carryout a functional test (see chapter 5.3).7 Inspection and maintenance