Maintenance; Functional Check Of Boiler Operation - Vaillant ecoMAX pro Instructions For Use Installation And Servicing

14 Servicing

14.2 Maintenance

Before commencing any servicing or maintenance work,
carry out an initial inspection of the system as follows:
• Inspect the flue, pipework and electrical connections
for indications of damage or deterioration.
• Inspect the air supply and ventilation arrangements of
the installation.
• Check the heating and water system, in particular the
condition of radiator valves, evidence of leakage from
the heating system and dripping hot water taps.

14.3 Functional check of boiler operation

• Carry out a functional check of the boiler operation as
previously detailed.
• Remove the appliance casing as detailed and operate
the boiler.
• Inspect the burner operation through the viewing
window.
• Check that the flames are evenly covering the surface
of the burner.
• Inspect for signs of excessive flame lift or sooting.
Overview of the maintenance tasks
No. Activity
1 Disconnect the device from the mains supply, close the gas supply and maintenance taps,
depressurise the device (observe the manometer)
2 Remove the compact thermal module
3 Clean primary heat exchanger
4 Check whether the burner is dirty
5 Refit compact thermal module, replace burner seal. (Spare part number 981 046)
6 Check whether the electrical plug connections and other connections are fitted tightly and make
adjustments, if necessary
7 Check/re-pressurise expansion vessel as necessary
8 Open the maintenance taps, fill up the appliance/system up to approx. 1.0 - 2.0 bar
(depending on the static height of the system)
9 Check appliance generally, check for dust on the appliance and remove in the low-pressure chamber
10 Check and clean condensate trap and connection pipes
11 Clean the condensation waterways in the device
12 Open the gas supply and switch on the deviceXX
13 Perform a test operation of the appliance and heating system, including water heating and evacuate,
if necessary
14 Check ignition and burner flame picture
15 Check boiler for any leaks
16 Check the air/gas flue system
17 Check appliance gas setting, reset and record if necessary.
18 Complete benchmark logbook
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Instructions for Use, Installation and Servicing ecoMAX pro
carry out for:
inspection service
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