ecoTEC plus 937 installation and maintenance manual
40
6 Functional
checks
(commissioning, Part II)
6.1 Functional
checks
6.1.1 Method
of
procedure
After installing and setting the gas, perform a function
check before commissioning the appliance and handing
over to the user.
• Commission the appliance in accordance with the
instructions in the relevant operating manual.
• Check the gas supply pipework, the flue system, the
heating system and the hot water pipework for leaks.
• Check that the flue system is properly fitted in
accordance with the installation instructions for the
flue system.
• Check the ignition and whether the burner is showing
a consistent flame picture.
• Carry out a function check of the heating system (see
Section 6.1.2) and the hot water preparation (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 heat demand.
• Press "
i
" to activate the status indicator.
As soon as there is a heat demand the display runs
through status indications "
S. 1
" to "
S. 3
", until the
appliance is running properly in normal operation and
the display shows
"
S. 4
".
Fig. 6.2 Display in heating mode
6.1.3
Hot water operation
• Switch on the appliance.
• Open the hot water tap fully.
• Press "
i
" to activate the status indicator.
If the hot water operation is operating properly, the
display shows "
S.14
".
Fig. 6.3 Display during hot water preparation
6 Functional Checks (commisioning, Part II)
