Specifications

Functional checks (commissioning part II)
48 Instructions for installation and servicing ecoTEC 839592_13
6
6 Functional checks
(commissioning part II)
6.1 Functional checks
6.1.1 Procedure
After installing and checking the gas supply pressure,
perf
orm a function check before commissioning the
appliance and handing over to the user.
> C
ommission the appliance according to the relevant
operating manual.
> Check the gas supply pipe, exhaust system, heating
system and the hot water lines (combination boilers
only) for leaks.
> Check that the flue system has been installed prop-
erly according to the flue system assembly manual.
> Check for ignition and an even flame on the burner.
> Perform a function check on the heating system (see
section 6.1.2) and the water heating (combination boil-
ers only, see section 6.1.3).
> Hand over the appliance to the user (see section 6.2).
Fig. 6.1 Function check
6.1.2 Heating
> Switch on the appliance.
> Make sure that there is a heating demand.
> Press “i” to activate the status indicator.
As soon as a heat demand is received, the appliance
runs thr
ough the status indicators “S. 1” to “S. 3”, until
the appliance is running correctly in normal mode and
the display shows “S. 4”.
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Fig. 6.2 Display indicator during heating mode
6.1.3 Water heating (combination boilers only)
> Switch on the appliance.
> Fully open the hot water tap.
> Press “i” to activate the status indicator.
If the water heating is working correctly, the display
sho
ws the following: “S.14”.
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Fig. 6.3 Display indicator during water heating
6.1.4 Final flush of the heating system (“hot”)
> Operate the appliance until the appliance and the
heating system are up to temperature.
> Check the heating system for leaks.
> Connect a hose to the drain valve located at the low-
est position of the heating system.