Functional Checks (Commissioning Part Iii); Functional Checks; Hot-Water Supply; Power Store Filling Mode - Vaillant aquaPlus Instructions For Installation And Servicing

8 Functional checks (Commissioning Part III)

8 Functional checks (Commissioning
Part III)

8.1 Functional checks

Once the unit has been installed and the gas supply has
been checked, operate the system to ensure that it is
working correctly.
• Operate the system, following the operating
instructions supplied with the boiler.
• Check the system for water leaks and escaping gas.
• Check that the flue has been correctly installed,
according to the fitting instructions supplied with the
flue assembly.
• Check the burner for correct ignition and flame
picture.
• Check the hot water system for correct operation.
• Check the heating system for correct operation.
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Fig. 8.1: Test for correct functioning
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This appliance is fitted with a display unit that uses
symbols to show the current operating status of the
boiler. Additionally to this the status of the boiler can be
checked using the Status Mode.

8.2 Hot-water supply

• Activate the system.
• Fully open one of the hot water taps in the system.
• Press the "i" key.
Status code "S.14" appears on the display to indicate
that the hot-water supply is functioning correctly.
Fig. 8.2: Display indication while hot water is being supplied

8.3 Power store filling mode

Note: The power store is delivered turned off and
must be turned on during commissioning.
• Activate the system.
• Ensure that the hot water thermostat is set to the
required heat level.
• Press the "i" key.
Status code "S.24" appears on the display if the tank is
being recharged.
Fig. 8.3: Display indication during power store filling mode
Instructions for installation and servicing aquaPLUS VUI 362-7