Vaillant ecoTEC plus SERIES Instructions For Installation And Servicing - page 31
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Instructions for installation and servicing ecoTEC plus / 0020020828_05
Remove loose debris from combustion chamber using a
soft brush and vacuum cleaner. Carefully flush any re-
maining debris through the condensate trap (ensure the
water is kept away from electrical components).
8.1.8 Condensate
drain
The condense drain does not normally need removing
during servicing. To flush the condense drain carefully
pour water into the heat exchanger and check that water
flows freely to drain. If the condense drain is blocked,
refer to parts replacement section 11 for removal.
8.1.9
Inner casing panel seal check
Check the condition of the seal, replace as required. To re-
place remove the old seal, thoroughly clean the casing sur-
faces. Fit the new seal, it is supplied to the correct length.
inner casing
seal
front casing
Fig. 8.9 Panels
8.1.10 Checking the expansion vessel (If fitted).
h
Note!
It is not necessary to perform this check every
year a check every three years is sufficient.
• Release the pressure from the boiler.
• Remove valve cap from expansion vessel charge point.
• Check that the internal charge pressure of the expan-
sion vessel is to the correct design pressure. If the
pressure is lower than this the vessel should be re
pressurised using an air pump.
• Refit the valve cap.
• Re pressurise boiler and heating system.
8.1.11 Re commissioning the boiler
• Carry out electrical safety checks.
• Turn on the electrical supply.
• Open the boiler CH service valves.
• Carry out function checks of boiler operation as previ-
ously detailed.
• Check gas rate as previously detailed.
• Check for water leaks.
• Refit case, ensuring that a good seal is obtained.
8.1.12 Test
operation
Always perform the following checks after completing
any maintenance task:
• Commission the appliance according to the relevant
operating manual.
• Check the appliance for gas and water leaks.
• Check the air/flue gas system for leaks, check its
fastening
• Check for ignition and an even flame on the burner.
• Check that the heating system is working.
• Fill out the Benchmark gas boiler commissioning
checklist at the rear of this guide.
Inspection and maintenance 8